Parking apron device

Abstract

The invention provides a parking apron device which comprises a platform structure comprising a first platform and a second platform which are connected in a hinged mode. The gradienter is arranged on the platform structure; the supporting legs are arranged below the platform structure at intervals, each supporting leg is arranged in a swinging mode and is provided with an outward swinging supporting position and a recycling storage position, and when each supporting leg is located at the outward swinging supporting position, the height of each supporting leg is adjustable. According to the technical scheme, the problem that in the prior art, a parking apron is prone to inclining on the uneven ground is effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of apron, and in particular to a apron device. Background Art

[0002] With the rapid development of the power grid industry, power grid inspection and maintenance work has gradually shifted from traditional manual inspections to drone inspections. Drone technology is widely used in power line inspections due to its high efficiency, accuracy, and flexibility. Especially in complex terrain environments such as mountains and hills, drones can overcome the geographical limitations of manual inspections and greatly improve work efficiency. However, with the widespread use of drones in operation and maintenance scenarios, some technical problems have gradually been exposed, the most prominent of which is the problem of drone take-off and landing platforms. Since inspection operations often occur in places with complex terrain such as the wild and mountainous areas, traditional drone landing pads are difficult to adapt to these complex terrain environments, affecting the stability and safety of drone take-off and landing.

[0003] Most drone helipads in the prior art are fixed designs, usually suitable for flat, open ground or building roofs. These helipads are generally made of sturdy materials, have certain anti-slip and wind resistance, and can ensure the safe take-off and landing of drones under normal conditions. However, in the actual work of power grid operation and maintenance, the inspection sites are generally located in irregular terrain such as mountains, slopes, and hills. The terrain is undulating and the vehicle parking conditions are limited. The existing fixed helipads cannot remain level on such uneven terrain, resulting in tilting and sliding problems when the drone takes off and lands, increasing the risk of damage to the drone. Summary of the invention

[0004] The main purpose of the present invention is to provide a helipad device to solve the problem in the related art that the helipad is prone to tilt on uneven ground.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, there is provided a helipad device, comprising: a platform structure, comprising a first platform and a second platform hingedly connected; a spirit level, arranged on the platform structure; a plurality of support legs, arranged at intervals below the platform structure, each support leg being swingably arranged and having an outward swing supporting position and a recovery storage position, and when each support leg is in the outward swing supporting position, the height of each support leg is adjustable.

[0006] Furthermore, each supporting leg includes a first rod segment, a second rod segment and an adjusting cylinder, wherein the adjusting cylinder is arranged between the first rod segment and the second rod segment, and the adjusting cylinder can adjust the distance between the first rod segment and the second rod segment.

[0007] Furthermore, a first thread is provided on the first rod segment, a second thread is provided on the second rod segment, a third thread is provided inside the adjusting cylinder, the thread direction of the first thread is opposite to the thread direction of the second thread, and the thread direction of the first thread is the same as the thread direction of the third thread.

[0008] Furthermore, the multiple supporting legs include a first leg, a second leg, a third leg and a fourth leg, the first leg and the second leg are both hingedly connected to the first platform, the third leg and the fourth leg are both hingedly connected to the second platform, and the third leg and the fourth leg are located between the first leg and the second leg.

[0009] Furthermore, when the supporting legs are in the retracted storage position, the first leg and the second leg are arranged in parallel, a preset angle is provided between the third leg and the fourth leg, and the free ends of the third leg and the fourth leg are close to each other.

[0010] Furthermore, the apron device also includes multiple suction cup structures and multiple connecting frames, the multiple suction cup structures are arranged in a one-to-one correspondence with the multiple supporting legs, each suction cup structure is arranged at the bottom of the corresponding supporting leg, each suction cup structure includes a suction cup body and a vacuum operating part, and the multiple connecting frames are arranged in a one-to-one correspondence with the multiple supporting legs, and each connecting frame is connected between the corresponding supporting leg and the suction cup structure.

[0011] Furthermore, the connecting frame includes a first plate body, a second plate body and a third plate body, the first end of the first plate body is connected to the suction cup body, the first end of the second plate body is connected to the suction cup body, the first plate body and the second plate body are spaced apart, the third plate body is connected between the second end of the first plate body and the second end of the second plate body, the supporting leg is connected to the third plate body, and the vacuum operating part is located between the first plate body, the second plate body, the third plate body and the suction cup body.

[0012] Furthermore, the apron device also includes a plurality of connection seats, which are arranged in one-to-one correspondence with the plurality of support legs, and each connection seat is connected between the corresponding support leg and the platform structure.

[0013] Furthermore, a rotating part is provided at the end of the supporting leg, an avoidance groove is provided on the connecting seat, the rotating part is located in the avoidance groove, and the apron device also includes a plurality of limiting structures, and the plurality of limiting structures are provided one-to-one correspondingly to the plurality of connecting seats, each limiting structure is movably provided on the connecting seat, and the limiting structure can abut and cooperate with the rotating part.

[0014] Furthermore, the limiting structure includes a limiting block, an operating rod and an elastic member, the limiting block is located in the avoidance groove, the operating rod is connected to the limiting block and extends out of the connecting seat, the elastic member is located between the limiting block and the end of the avoidance groove, the elastic member applies elastic force to the limiting block to make the limiting block abut against the rotating part, and a limiting recess is provided on the rotating part. When the supporting leg is in the outward swing supporting position, the limiting block is inserted into the limiting recess.

[0015] According to the technical solution of the present invention, the platform structure includes a first platform and a second platform, a spirit level is arranged on the platform structure, and a plurality of support legs are arranged on the platform structure at intervals, and each support leg is swingably arranged and has an outward swing support position and a recovery storage position. When the support leg is in the outward swing support position, the height of the support leg is adjustable. Through the above-mentioned arrangement, under the action of the spirit level and the support legs, the horizontality of the platform structure can be adjusted, and the position of the apron device can be made more stable and less prone to shaking or tilting. Therefore, the technical solution of the present application effectively solves the problem in the related art that the apron is prone to tilting on uneven ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a helipad device according to the present invention is shown;

[0018] Figure 2 Shows Figure 1 A three-dimensional structural schematic diagram of the apron device from another perspective;

[0019] Figure 3 Shows Figure 1 A schematic diagram of a three-dimensional structure of the apron device after folding;

[0020] Figure 4 Shows Figure 1 A three-dimensional structural diagram of the supporting legs and suction cup structure of the apron device;

[0021] Figure 5 Shows Figure 4 A cross-sectional schematic diagram of a supporting leg and a suction cup structure;

[0022] Figure 6 Shows Figure 4 Schematic diagram of the exploded structure of the support leg and suction cup structure.

[0023] The above drawings include the following reference numerals:

[0024] 10. Platform structure; 11. First platform; 12. Second platform; 20. Level; 30. Support leg; 31. First rod section; 32. Second rod section; 33. Adjustment cylinder; 34. First leg; 35. Second leg; 36. Third leg; 37. Fourth leg; 38. Rotation part; 381. Limiting recess; 40. Suction cup structure; 41. Suction cup body; 42. Vacuum operating part; 50. Connecting frame; 51. First plate body; 52. Second plate body; 53. Third plate body; 60. Connecting seat; 61. Avoidance groove; 70. Limiting structure; 71. Limiting block; 72. Operating rod; 73. Elastic part. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0027] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0028] At present, the existing UAV take-off and landing platforms have the following shortcomings:

[0029] 1. Lack of stability: Most take-off and landing platforms cannot remain level on uneven terrain, which can easily cause the drone to become unstable during take-off and landing, thereby increasing the risk of falling.

[0030] 2. Lack of portability: The traditional take-off and landing platform has a complex structure and is heavy, which affects the portability and mobility of field operations and is not suitable for frequent mobile operation needs.

[0031] 3. Poor adaptability: The existing platform has a fixed height and cannot be flexibly adjusted according to different terrains or vehicle roof height differences, which makes operation difficult and limits its use in various environments.

[0032] 4. Poor stability of folding structure: Existing portable helipads are not stable enough in the folded state, and are prone to structural loosening or damage during transportation and use. Although the folding design improves portability, it sacrifices structural stability, making the helipad face the risk of material fatigue and wear at the folding joints during frequent movement and use, affecting long-term use.

[0033] 5. High maintenance cost: The existing aprons are complex in design and structure, requiring regular maintenance and overhaul, resulting in high maintenance costs. Due to the complexity of the operating environment and the frequent use of equipment, aprons often face various physical damage and structural fatigue problems, which increases the frequency and cost of maintenance. This not only affects the effective management of the operation and maintenance budget, but may also delay key operations such as power grid inspections.

[0034] In order to solve the above technical problems, Figures 1 to 3 As shown, in this embodiment, the apron device includes: a platform structure 10, a level 20 and a plurality of support legs 30. The platform structure 10 includes a first platform 11 and a second platform 12 that are hingedly connected. The level 20 is arranged on the platform structure 10. A plurality of support legs 30 are arranged at intervals below the platform structure 10, each support leg 30 is swingably arranged and has an outward swing support position and a recovery storage position, and when each support leg 30 is in the outward swing support position, the height of each support leg 30 is adjustable.

[0035] Applying the technical solution of this embodiment, the platform structure 10 includes a first platform 11 and a second platform 12, a spirit level 20 is arranged on the platform structure 10, and a plurality of support legs 30 are arranged at intervals on the platform structure 10, and each support leg 30 is swingably arranged and has an outward swing support position and a recovery storage position. When the support leg 30 is in the outward swing support position, the height of the support leg 30 is adjustable. Through the above-mentioned setting, under the action of the spirit level 20 and the support leg 30, the horizontality of the platform structure 10 can be adjusted, and then the position of the apron device can be made more stable and less prone to shaking or tilting. Therefore, the technical solution of this embodiment effectively solves the problem in the related art that the apron is prone to tilting on uneven ground.

[0036] Specifically, this design enables the helipad device to be used on uneven ground. By adjusting the height of the support legs 30, the platform structure 10 is ensured to remain horizontal, providing a stable docking platform for the drone. Application scenarios include emergency rescue or material transportation drones docking in natural environments such as mountains, forests, and deserts. In these complex terrains, standard helipads are often difficult to build, and the adjustable design of the device can quickly adapt to ground conditions, provide necessary support for drones, and ensure flight safety.

[0037] It should be noted that the technical solution of this embodiment solves the problems of insufficient stability, poor portability and poor adaptability of existing UAV take-off and landing platforms in complex terrain by introducing vacuum adsorption technology, support height adjustment and portable folding functions. At the same time, it ensures that the platform can take off and land stably on rugged terrain or uneven roofs, significantly improves the efficiency of power grid operation and maintenance, reduces the risk of UAV crashing, and provides a safe and reliable working environment.

[0038] like Figure 1 , Figure 2 as well as Figures 4 to 6 As shown, in this embodiment, each support leg 30 includes a first rod segment 31, a second rod segment 32 and an adjustment cylinder 33, wherein the adjustment cylinder 33 is disposed between the first rod segment 31 and the second rod segment 32, and the adjustment cylinder 33 can adjust the distance between the first rod segment 31 and the second rod segment 32. The above structure not only simplifies the adjustment process of the support leg 30, but also ensures the strength and stability of the support leg 30.

[0039] Specifically, a blocking plate is disposed in the middle of the adjusting cylinder 33 , and the blocking plate can prevent the first rod segment 31 and the second rod segment 32 from colliding.

[0040] like Figures 4 to 6As shown, in this embodiment, the first rod segment 31 is provided with a first thread, the second rod segment 32 is provided with a second thread, and the interior of the adjustment cylinder 33 is provided with a third thread, the thread direction of the first thread is opposite to the thread direction of the second thread, and the thread direction of the first thread is the same as the thread direction of the third thread. The design of the first thread, the second thread, and the third thread enables the adjustment cylinder 33 to simultaneously push or pull the first rod segment 31 and the second rod segment 32 when rotating, so as to achieve rapid adjustment of the height of the support leg 30, while ensuring the smoothness and accuracy of the adjustment process.

[0041] like Figures 4 to 6 As shown, in this embodiment, the plurality of support legs 30 include a first leg 34, a second leg 35, a third leg 36 and a fourth leg 37. The first leg 34 and the second leg 35 are both hingedly connected to the first platform 11, the third leg 36 and the fourth leg 37 are both hingedly connected to the second platform 12, and the third leg 36 and the fourth leg 37 are located between the first leg 34 and the second leg 35. This layout ensures the structural balance of the helipad device when it is deployed, and even on an inclined or irregular ground, the platform can be kept horizontal by adjusting the support legs 30, which is suitable for docking drones in various complex terrains.

[0042] In actual use, this layout can ensure that the drone can maintain a good balance on the inclined ground at any angle, reducing the risk of accidents caused by uneven ground. This is especially true in mountainous areas or disaster areas, where ground conditions are often unpredictable. This design can effectively cope with this.

[0043] like Figures 4 to 6 As shown, in this embodiment, when the support leg 30 is in the retracted storage position, the first leg 34 and the second leg 35 are arranged in parallel, the third leg 36 and the fourth leg 37 have a preset angle, and the free end of the third leg 36 and the free end of the fourth leg 37 are close to each other. This layout ensures that the apron device has a compact structure when stored, that is, the first leg 34 and the second leg 35 are located outside the third leg 36 and the fourth leg 37, so as to avoid collision between the first leg 34, the second leg 35, the third leg 36 and the fourth leg 37 when the first platform and the second platform are stored.

[0044] like Figures 4 to 6 As shown, in the present embodiment, the apron device further includes a plurality of suction cup structures 40 and a plurality of connecting frames 50. The plurality of suction cup structures 40 are arranged in one-to-one correspondence with the plurality of supporting legs 30. Each suction cup structure 40 is arranged at the bottom of the corresponding supporting leg 30. Each suction cup structure 40 includes a suction cup body 41 and a vacuum operating member 42. The plurality of connecting frames 50 are arranged in one-to-one correspondence with the plurality of supporting legs 30. Each connecting frame 50 is connected between the corresponding supporting leg 30 and the suction cup structure 40.

[0045] like Figures 4 to 6 As shown, in the present embodiment, the suction cup structure 40 is adsorbed on the roof surface by vacuum compression technology. As long as the vacuum operating part 42 is pushed to move and submerge the warning mark, if the vacuum operating part 42 is successfully adsorbed and there is no loosening or retraction, the warning mark is completely covered, indicating that the adsorption is successful; otherwise, if the vacuum operating part 42 has insufficient adsorption force or loosens and retracts for other reasons, part or all of the warning mark will be exposed, forming an obvious visual warning, prompting the operator to re-perform the adsorption operation to ensure the stability and safety of the platform.

[0046] To ensure safe operation, a pressure relief cap is installed above each suction cup structure 40. When the platform structure 10 needs to be disassembled, the vacuum pressure in the suction cup body 41 can be released by rotating the pressure relief cap, thereby facilitating the disassembly and storage of the platform structure 10.

[0047] like Figures 4 to 6 As shown, in this embodiment, the use of the suction cup structure 40 enhances the contact stability between the apron device and the ground. On the one hand, the suction cup structure 40 can be adsorbed and fixed to a smooth surface, and on the other hand, it can provide sufficient supporting force even on soft or slippery ground. That is, the contact area between the suction cup structure 40 and the ground is large, which prevents the UAV from sliding when docking or taking off, and is suitable for UAV docking in various weather conditions.

[0048] In actual applications, the suction cup structure 40 can effectively cope with slippery or soft ground, provide a solid docking platform for the drone, reduce the risk of docking due to bad weather or ground conditions, and ensure the safe operation of the drone in complex environments.

[0049] like Figures 4 to 6 As shown, in this embodiment, the connecting frame 50 includes a first plate 51, a second plate 52 and a third plate 53, the first end of the first plate 51 is connected to the suction cup body 41, the first end of the second plate 52 is connected to the suction cup body 41, the first plate 51 and the second plate 52 are arranged at intervals, the third plate 53 is connected between the second end of the first plate 51 and the second end of the second plate 52, the supporting leg 30 is connected to the third plate 53, and the air extraction operating member 42 is located between the first plate 51, the second plate 52, the third plate 53 and the suction cup body 41. The design of this connecting frame 50 not only enhances the stability of the suction cup structure 40, but also facilitates the use of the air extraction operating member 42, ensures that the suction cup body 41 can quickly and effectively absorb the ground, and improves the efficiency and safety of the drone docking.

[0050] In actual operation, this design ensures the rapid deployment and efficient adsorption of the helicopter. The operator only needs to simply operate the vacuum operating member 42 to achieve a close fit between the suction cup body 41 and the ground, which greatly improves the preparation speed for the drone to dock.

[0051] In an embodiment not shown in the figure, magnetic adsorption or mechanical clamps can also be used to fix the support angle to the roof to meet the adaptability requirements of different roof materials.

[0052] like Figures 4 to 6 As shown, in this embodiment, the apron device further includes a plurality of connection seats 60, which are arranged one by one with the plurality of support legs 30, and each connection seat 60 is connected between the corresponding support leg 30 and the platform structure 10. The arrangement of the connection seats 60 further enhances the connection stability between the support leg 30 and the platform structure 10, and ensures the overall structural strength of the apron device during use.

[0053] like Figures 4 to 6 As shown, in this embodiment, a rotating part 38 is provided at the end of the support leg 30, and an avoidance groove 61 is provided on the connecting seat 60, and the rotating part 38 is located in the avoidance groove 61. The apron device also includes a plurality of limiting structures 70, and the plurality of limiting structures 70 are provided in a one-to-one correspondence with the plurality of connecting seats 60, and each limiting structure 70 is movably provided on the connecting seat 60, and the limiting structure 70 can be abutted and matched with the rotating part 38. The design of the above-mentioned limiting structure 70 ensures that the position of the support leg 30 is fixed during use and storage, avoids the accidental movement of the support leg 30 under the action of wind or other external forces, and improves the safety and portability of the apron device. In an environment with strong winds or other external interference, this limiting structure 70 can effectively prevent the accidental movement of the support leg 30, ensure the stability and reliability of the apron device, and provide additional safety protection for the docking of the drone under adverse weather conditions.

[0054] like Figures 4 to 6 As shown, in this embodiment, the limiting structure 70 includes a limiting block 71, an operating rod 72 and an elastic member 73. The limiting block 71 is located in the avoidance groove 61. The operating rod 72 is connected to the limiting block 71 and extends out of the connecting seat 60. The elastic member 73 is located between the limiting block 71 and the end of the avoidance groove 61. The elastic member 73 applies elastic force to the limiting block 71 so that the limiting block 71 abuts against the rotating part 38. The rotating part 38 is provided with a limiting recess 381. When the support leg 30 is in the outward swing support position, the limiting block 71 is inserted into the limiting recess 381. This mechanical limiting design is not only easy to operate, but also can ensure the precise position of the support leg 30 when it is unfolded and stored, thereby improving the overall stability and operating efficiency of the apron device. In actual operation, this limiting structure 70 can ensure the rapid positioning and fixing of the support leg 30.

[0055] The platform structure 10 is designed to be light and sturdy, with chamfers everywhere, a soft plastic coating on the outer wall, smooth and flat, and with a helipad sign, which is easy to carry and store, and can ensure that the drone can take off and land accurately, safely and smoothly. After unfolding, the platform structure 10 is internally equipped with four support legs 30, each of which is stably fixed to the four sides of the platform structure 10 by Velcro and a connecting seat 60, and the functions of unfolding and folding are realized by a limiting structure 70. A rotating part 38 is provided on the support leg 30. After being rotated and opened, the limiting structure 70 is automatically locked to ensure that the support leg 30 is firmly supported; when it needs to be closed, the sliding operating rod 72 can be easily folded and stored in the platform structure 10.

[0056] Specifically, the helipad device of this embodiment can adapt to different terrains and height differences through its adjustable height support legs 30 and swingable design, ensuring the stability and safety of the drone when docking. The provision of the suction cup structure 40 further enhances the grip of the helipad device, especially under non-flat or non-hard ground conditions, and improves the overall stability of the helipad device. In addition, through the cooperation of the limiting structure 70, the position of the support leg 30 during use and storage is precisely controlled, and the operation is simple, which improves the practicality and portability of the device. These designs optimize the performance of the helipad device, improve the actual effect of drone docking, and provide a strong guarantee for the safe docking of drones in complex environments.

[0057] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention. The directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0058] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0059] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A helipad device, characterized in that: include: A platform structure (10) comprising a first platform (11) and a second platform (12) which are hingedly connected; A level (20) disposed on the platform structure (10); A plurality of support legs (30) are arranged at intervals below the platform structure (10); each of the support legs (30) is swingably arranged and has an outward swing support position and a recovery storage position; when each of the support legs (30) is in the outward swing support position, the height of each of the support legs (30) is adjustable.

2. The apron device according to claim 1, characterized in that: Each of the supporting legs (30) comprises a first rod segment (31), a second rod segment (32) and an adjustment cylinder (33); the adjustment cylinder (33) is arranged between the first rod segment (31) and the second rod segment (32); the adjustment cylinder (33) is capable of adjusting the distance between the first rod segment (31) and the second rod segment (32).

3. The apron device according to claim 2, characterized in that: The first rod segment (31) is provided with a first thread, the second rod segment (32) is provided with a second thread, and the interior of the adjustment cylinder (33) is provided with a third thread, the thread direction of the first thread is opposite to the thread direction of the second thread, and the thread direction of the first thread is the same as the thread direction of the third thread.

4. The apron device according to claim 1, characterized in that: The plurality of supporting legs (30) include a first leg (34), a second leg (35), a third leg (36) and a fourth leg (37); the first leg (34) and the second leg (35) are both hingedly connected to the first platform (11); the third leg (36) and the fourth leg (37) are both hingedly connected to the second platform (12); the third leg (36) and the fourth leg (37) are located between the first leg (34) and the second leg (35).

5. The apron device according to claim 4, characterized in that: When the support leg (30) is in the recovery storage position, the first leg (34) and the second leg (35) are arranged in parallel, a preset angle is provided between the third leg (36) and the fourth leg (37), and the free end of the third leg (36) and the free end of the fourth leg (37) are close to each other.

6. The apron device according to claim 1, characterized in that: The apron device further comprises a plurality of suction cup structures (40) and a plurality of connecting frames (50), the plurality of suction cup structures (40) being arranged in one-to-one correspondence with the plurality of supporting legs (30), each of the suction cup structures (40) being arranged at the bottom of the corresponding supporting leg (30), each of the suction cup structures (40) comprising a suction cup body (41) and an air suction operating member (42), the plurality of connecting frames (50) being arranged in one-to-one correspondence with the plurality of supporting legs (30), and each of the connecting frames (50) being connected between the corresponding supporting leg (30) and the suction cup structure (40).

7. The apron device according to claim 6, characterized in that: The connecting frame (50) comprises a first plate body (51), a second plate body (52) and a third plate body (53); the first end of the first plate body (51) is connected to the suction cup body (41); the first end of the second plate body (52) is connected to the suction cup body (41); the first plate body (51) and the second plate body (52) are arranged at an interval; the third plate body (53) is connected between the second end of the first plate body (51) and the second end of the second plate body (52); the supporting leg (30) is connected to the third plate body (53); and the vacuum operating member (42) is located between the first plate body (51), the second plate body (52), the third plate body (53) and the suction cup body (41).

8. The apron device according to claim 1, characterized in that: The apron device further comprises a plurality of connection seats (60), the plurality of connection seats (60) being arranged in one-to-one correspondence with the plurality of support legs (30), and each of the connection seats (60) being connected between the corresponding support leg (30) and the platform structure (10).

9. The apron device according to claim 8, characterized in that: The end of the supporting leg (30) is provided with a rotating part (38), the connecting seat (60) is provided with an avoidance groove (61), the rotating part (38) is located in the avoidance groove (61), and the apron device also includes a plurality of limiting structures (70), the plurality of limiting structures (70) are arranged in a one-to-one correspondence with the plurality of connecting seats (60), each of the limiting structures (70) is movably arranged on the connecting seat (60), and the limiting structure (70) can abut and cooperate with the rotating part (38).

10. The apron device according to claim 9, characterized in that: The limiting structure (70) comprises a limiting block (71), an operating rod (72) and an elastic member (73); the limiting block (71) is located in the avoidance groove (61); the operating rod (72) is connected to the limiting block (71) and extends out of the connecting seat (60); the elastic member (73) is located between the limiting block (71) and the end of the avoidance groove (61); the elastic member (73) applies elastic force to the limiting block (71) so that the limiting block (71) and the rotating part (38) are abutted and matched; a limiting recess (381) is provided on the rotating part (38); when the supporting leg (30) is in the outward swing supporting position, the limiting block (71) is inserted into the limiting recess (381).

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