Fixed locking device and unmanned aerial vehicle launching system
By using a fixed locking device to connect the launch box on the UAV launch vehicle, vertical arrangement and angle adjustment can be achieved in a limited space, solving the problem of limited number of UAV launches and improving space utilization and assembly efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- 重庆零壹空间航天科技有限公司
- Filing Date
- 2023-08-11
- Publication Date
- 2026-05-29
AI Technical Summary
The limited surface space on existing drone launch vehicles restricts the number of drones that can be launched simultaneously, making it difficult to meet usage demands.
Adjacent launch boxes are connected by a fixed locking device, allowing the launch boxes to be arranged vertically in a limited planar space. The angles of multiple launch boxes can be adjusted synchronously by adjusting the tilt angle of the bottom launch box. Positioning and limiting are achieved by using the snap-fit components of the upper and lower corner pieces.
It increases space utilization, enables simultaneous launch of multiple launch boxes, simplifies the assembly process, reduces costs, and improves the stability of the launch boxes and the robustness of the connections.
Smart Images
Figure CN116853564B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of unmanned aerial vehicle (UAV) launch technology, specifically relating to a fixing and locking device and a UAV launch system. Background Technology
[0002] In existing technologies, the typical method of launching drones using a box-type launcher involves mounting the drone inside a launch box, tilting the launch box during launch, and launching the drone from the high-end opening of the launch box. For example, patent CN202220053332.6 discloses a multi-functional box-type launcher for drones, which uses an angle adjustment mechanism located at the bottom of the launch box to adjust the tilt angle of the launch box to meet the launch requirements of the drones. However, this launch method can only launch one set of drones at a time. Even if multiple launch boxes and angle adjustment mechanisms are set up on the ground, there is still a problem with the large footprint. In practical use, the launch boxes can be mounted on a launch vehicle for use. However, the limited surface space on the launch vehicle limits the number of launch boxes that can be placed on the vehicle's surface, thus limiting the number of drones that can be launched simultaneously, which is insufficient to meet usage requirements. Summary of the Invention
[0003] In view of the shortcomings of the existing technology, the present invention provides a fixing and locking device and a UAV launch system to solve the problem that the limited planar space on the launch vehicle results in a limited number of UAVs that can be launched at the same time, which makes it difficult to meet the needs of use.
[0004] According to embodiments of the present invention, the present invention adopts the following technical solution:
[0005] The fixing and locking device includes an upper corner piece for installation at the upper corner of the launch box and a lower corner piece for installation at the lower corner of the launch box. The upper and lower corner pieces are provided with mutually cooperating snap-fit components to limit the relative displacement of the upper and lower corner pieces in the horizontal plane. Each upper and lower corner piece includes three fixing plates that are fixed perpendicularly to each other in pairs. The outer side of the fixing plate without snap-fit components has a mounting groove. The mounting groove is connected to limit grooves in the direction of the other two fixing plates connected to the fixing plate. The limit grooves of adjacent fixing plates are interconnected. The device also includes a connecting assembly for connecting adjacent launch boxes. The connecting assembly includes a mounting base, a screw hinged to the mounting base, and a nut threaded onto the screw. The mounting base is detachably connected to the mounting groove. The limit grooves limit the screw. The screw passes through the limit grooves on two adjacent launch boxes. The nut abuts against the inner wall of the mounting groove on the launch box adjacent to the launch box where the mounting base is located.
[0006] Compared with the prior art, the present invention has the following beneficial effects:
[0007] 1. In this solution, a fixed locking device is designed to connect adjacent launch boxes, allowing the launch boxes to be arranged vertically within a limited planar space. By simply adjusting the tilt angle of the bottom launch box, the angles of multiple vertically distributed launch boxes can be adjusted simultaneously, enabling simultaneous launch and increasing space utilization.
[0008] 2. The upper or lower corner pieces can be directly fixed to the corners of the existing launch box without requiring direct modification to the existing launch box structure. This facilitates assembly and reduces costs.
[0009] 3. When the launch boxes are stacked vertically, the locking components of the upper and lower corner pieces on adjacent launch boxes allow the multiple launch boxes to be mutually positioned in the plane. This serves two purposes: positioning the launch boxes during vertical stacking and preventing displacement of the multiple launch boxes in the plane when adjusting their angles later.
[0010] 4. Based on the connection requirements of adjacent launch boxes, such as connecting two launch boxes vertically or two launch boxes horizontally, install the mounting base into the mounting groove of the upper or lower corner piece of one of the launch boxes. Then adjust the angle of the screw so that the free end of the screw is inserted into the mounting groove of the upper or lower corner piece of the adjacent launch box. Tighten the nut so that the nut abuts against the inner wall of the mounting groove to fix the screw and realize the connection of adjacent launch boxes. The assembly is simple and can quickly realize the connection of adjacent launch boxes. When it is necessary to disassemble, simply loosen the nut and rotate the screw to separate the adjacent launch boxes.
[0011] Furthermore, the snap-fit assembly includes a horizontal insertion block and a vertical insertion block fixed to the upper end of the upper corner piece, and a horizontal insertion slot and a vertical insertion slot opened at the lower end of the lower corner piece for the horizontal insertion block to be inserted into, the horizontal insertion block and the vertical insertion block being perpendicular to each other.
[0012] Furthermore, the cross-sections of both the transverse and longitudinal insert blocks are isosceles trapezoids.
[0013] Furthermore, the mounting groove is provided with an insertion slot for inserting the mounting base. Both the insertion slot and the mounting base have square cross-sections, and a limiting member for locking the mounting base is installed in the mounting groove.
[0014] Furthermore, the limiting component includes a fixing block fixed to the inner wall of the mounting groove, a sliding hole opened on the fixing block, a slider slidably connected in the sliding hole, and a spring fixed between the slider and the inner wall of the sliding hole. When the spring is not subjected to external force, the free end of the slider is stuck outside the insertion groove; the free end of the slider has an inclined guide surface on the side facing away from the insertion groove.
[0015] Furthermore, there are four sets of limiting members, each located at one of the four corners of the insertion slot.
[0016] Furthermore, the fixed block has a strip-shaped hole that communicates with the sliding hole, and a sliding rod is fixed on the slider. The sliding rod is slidably connected in the strip-shaped hole. The inner wall of the strip-shaped hole includes a smooth section and a friction section. The smooth section is located on the side close to the insertion groove, and the friction section is used to limit the sliding of the sliding rod.
[0017] Furthermore, a mounting block is fixed on the mounting base, and a connecting hole is opened at the end of the screw. A pin for passing through the connecting hole is inserted into the mounting block. The connecting hole and the pin are clearance-fitted. The axis of the pin is perpendicular to the axis of the screw, and the axis of the pin is perpendicular to the axis of the mounting groove. When the axis of the screw is perpendicular to the axis of the mounting groove, the side wall of the screw and the inner wall of the limiting groove abut against each other.
[0018] Furthermore, several flexible protrusions are fixed circumferentially on the end face of the nut.
[0019] According to embodiments of the present invention, the present invention also employs the following technical solutions:
[0020] The drone launch system includes several launch boxes for mounting drones, with adjacent launch boxes connected by a fixing and locking device.
[0021] Compared with the prior art, the present invention has the following beneficial effects:
[0022] By connecting adjacent launch boxes with a fixing and locking device, the launch boxes can be arranged vertically in a limited plane space. By simply adjusting the tilt angle of the bottom launch box, the angles of multiple vertically distributed launch boxes can be adjusted simultaneously to achieve simultaneous launch and increase space utilization. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention.
[0024] Figure 2 This is a front view of an embodiment of the present invention.
[0025] Figure 3 for Figure 2 Enlarged view of part A in the middle.
[0026] Figure 4 for Figure 2 Enlarged view of section B.
[0027] Figure 5 This is a schematic diagram of the limiting member in an embodiment of the present invention.
[0028] Figure 6 This is a schematic diagram of the upper corner component in an embodiment of the present invention.
[0029] Figure 7 This is a schematic diagram of the lower corner component in an embodiment of the present invention.
[0030] In the diagram: 1. Launch box; 2. Adjustment mechanism; 3. Launch vehicle; 4. Upper corner piece; 5. Lower corner piece; 6. Limiting groove; 7. Mounting groove; 8. Nut; 9. Screw; 10. Mounting base; 11. Longitudinal insertion block; 12. Longitudinal insertion groove; 13. Protrusion; 14. Fixing block; 15. Guide surface; 16. Slider; 17. Spring; 18. Sliding hole; 19. Sliding rod; 20. Strip hole; 21. Mounting block; 22. Pin; 23. Fixing plate; 24. Protrusion; 25. Lateral insertion block; 26. Lateral insertion groove. Detailed Implementation
[0031] The present invention will be further described in detail below with reference to the accompanying drawings, and specific embodiments are given.
[0032] like Figure 1 As shown, the UAV launch system includes several launch boxes 1 for mounting the UAVs. The launch boxes 1 are arranged in a horizontal row, and then stacked in multiple layers vertically. Figure 1 As shown in the example, three launch boxes 1 are placed in a row horizontally, and another layer of three are stacked vertically, that is, a total of two layers and three columns, with a total of six launch boxes 1.
[0033] Adjacent launch boxes 1 are connected by a fixing and locking device, specifically, as follows: Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7As shown, the fixing and locking device includes an upper corner piece 4 for installation at the upper corner of the launch box 1 and a lower corner piece 5 for installation at the lower corner of the launch box 1. The upper corner piece 4 and the lower corner piece 5 are provided with mutually cooperating snap-fit components. The snap-fit components are used to limit the relative displacement of the upper corner piece 4 and the lower corner piece 5 in the horizontal plane. Specifically, the snap-fit components include a horizontal insertion block 25 and a vertical insertion block 11 fixed at the upper end of the upper corner piece 4, and a horizontal insertion slot 26 for the horizontal insertion block 25 to be inserted and a vertical insertion slot 12 for the vertical insertion block 11 to be inserted at the lower end of the lower corner piece 5. The horizontal insertion block 25 and the vertical insertion block 11 are distributed perpendicularly to each other. The horizontal insertion block 25 and the vertical insertion block 11 can be distributed in a "cross shape" or in a "T shape". During assembly, four upper corner pieces 4 are fixed at the four corners of the upper end of the launch box 1 (they can be directly welded or detachable connections such as bolts can be used in existing technology). Four lower corner pieces 5 are fixed at the four corners of the lower end of the launch box 1. Then, the first layer of launch boxes 1 is placed first, and then the second layer of launch boxes 1 is stacked on top of it, so that the lower corner pieces 5 at the lower end of the second layer of launch boxes 1 and the upper corner pieces 4 at the upper end of the first layer of launch boxes 1 interlock with each other and limit each other on the plane. To facilitate the insertion of the transverse insertion block 25 into the transverse insertion slot 26 and the longitudinal insertion block 11 into the longitudinal insertion slot 12, the cross sections of the transverse insertion block 25 and the longitudinal insertion block 11 are both isosceles trapezoids. Correspondingly, the cross sections of the transverse insertion slot 26 and the longitudinal insertion slot 12 are also both isosceles trapezoids.
[0034] Both the upper corner piece 4 and the lower corner piece 5 include three fixing plates 23 that are fixed perpendicularly to each other in pairs. The three fixing plates 23 abut against the plane of the corner of the launch box 1. The side of the fixing plate 23 facing the launch box 1 is the inner side, and the side of the fixing plate 23 facing away from the launch box 1 is the outer side. The outer side of the fixing plate 23 without the snap-fit assembly has a mounting groove 7. Taking the upper corner piece 4 as an example, the upper fixing plate 23 of the upper corner piece 4 has a horizontal insertion block 25 and a vertical insertion block 11. The two fixing plates 23 on the lower side of the upper corner piece 4 each have a mounting groove 7. The mounting groove 7 is connected to the other two fixing plates 23 connected to it via a limiting groove 6, and the limiting grooves 6 of adjacent fixing plates 23 are interconnected. In actual design, to facilitate the opening of a mounting groove 7 of a certain depth on the fixing plate 23, the thickness of the fixing plate 23 itself can be set to be relatively thick, or a protrusion 24 for thickening can be provided on the inner side of the fixing plate 23, thereby meeting the requirement of opening a mounting groove 7 of a certain depth.
[0035] The fixing and locking device also includes a connecting assembly for connecting adjacent launch boxes 1. The connecting assembly includes a mounting base 10, a screw 9 hinged to the mounting base 10, and a nut 8 threaded onto the screw 9. The mounting base 10 is detachably connected to the mounting groove 7. Specifically, in this embodiment, the mounting base 10 is directly bolted to the inner wall of the mounting groove 7. A mounting block 21 is fixed on the mounting base 10. A connecting hole is opened at the end of the screw 9. A pin 22 for passing through the connecting hole is inserted into the mounting block 21. The connecting hole and the pin 22 are clearance-fitted to allow the screw 9 to rotate relative to the pin 22. In actual design, after the screw 9 is assembled onto the mounting block 21, the pin 22 can be fixed to the mounting block 21 by conventional methods in the prior art (e.g., bolt connection) to prevent the pin 22 from detaching from the mounting block 21. The axis of the pin 22 is perpendicular to the axis of the screw 9, and the axis of the pin 22 is perpendicular to the axis of the mounting groove 7. The limiting groove 6 is used to limit the screw 9, which is used to connect adjacent launch boxes 1. That is, the screw 9 passes through the limiting groove 6 on two adjacent launch boxes 1. When the axis of the screw 9 is perpendicular to the axis of the mounting groove 7, the side wall of the screw 9 abuts against the inner wall of the limiting groove 6. The nut 8 abuts against the inner wall of the mounting groove 7 on the launch box 1 adjacent to the launch box 1 where the mounting base 10 is located.
[0036] In practical use, Figure 1 Taking the connection of two layers of three rows of launch boxes 1 as an example, first place the first layer of launch boxes 1, then stack the second layer of launch boxes 1 on top of it, so that the lower corner piece 5 at the bottom of the second layer of launch boxes 1 and the upper corner piece 4 at the top of the first layer of launch boxes 1 interlock with each other. Then connect the three adjacent rows of launch boxes 1 on the left and right of the first layer in sequence, connect the three adjacent rows of launch boxes 1 on the left and right of the second layer in sequence, and then connect the two adjacent layers of launch boxes 1 in the vertical direction. The specific connection method is as follows (the first layer of launch boxes 1 are referred to as launch boxes a1 / b1 / c1 from left to right, and the second layer of launch boxes 1 are referred to as launch boxes a2 / b2 / c2 from left to right):
[0037] The first layer of adjacent launch boxes 1 on the left and right are connected sequentially by the lower corner piece 5 located at the lower end of the launch box 1, so as to... Figure 4Taking the example shown, firstly, the mounting base 10 is fixed into the mounting groove 7 of the lower corner piece 5 on the right side of the launch box a1, and the screw 9 is rotated in a left-right swinging direction. The screw 9 is then inserted into the limiting groove 6 on its right side, and the end of the screw 9 enters the mounting groove 7 of the lower corner piece 5 on the left side of the launch box b1. Then, the nut 8 is tightened so that the end face of the nut 8 abuts against the inner wall of the mounting groove 7 of the lower corner piece 5 on the left side of the launch box b1, thus connecting launch boxes a1 / b1. Then, the mounting base 10 is fixed into the mounting groove 7 of the lower corner piece 5 on the right side of the launch box b1, and the screw 9 is rotated in a left-right swinging direction. The screw 9 is then inserted into the limiting groove 6 on its right side, and the end of the screw 9 enters the mounting groove 7 of the lower corner piece 5 on the left side of the launch box c1. Then, the nut 8 is tightened so that the end face of the nut 8 abuts against the inner wall of the mounting groove 7 of the lower corner piece 5 on the left side of the launch box c1, thus connecting launch boxes b1 / c1. In the above process, the front sides of the three transmitter boxes 1 in the first layer are connected together. To ensure the stability of the connection, the back sides of the three transmitter boxes 1 in the first layer can also be connected together following the above steps.
[0038] The two adjacent launch boxes 1 in the second layer are connected sequentially via upper corner pieces 4 located at the lower end of the launch box 1. For example, first, the mounting base 10 is fixed into the mounting groove 7 of the upper corner piece 4 on the right side of launch box a2, and the screw 9 is rotated in a left-right swinging direction. The screw 9 is then inserted into the limiting groove 6 on its right side, and the end of the screw 9 enters the mounting groove 7 of the upper corner piece 4 on the left side of launch box b2. Then, the nut 8 is tightened so that the end face of the nut 8 abuts against the inner wall of the mounting groove 7 of the upper corner piece 4 on the left side of launch box b2, thus connecting launch boxes a2 / b2. Following the above steps, launch boxes b2 / c2 are connected, and the backs of the three launch boxes 1 in the second layer can also be connected.
[0039] Then connect the two adjacent vertically arranged launch boxes 1, so as to Figure 3 Taking the example shown, firstly, the mounting base 10 is fixed into the mounting groove 7 of the upper corner piece 4 of the launch box a1, and the screw 9 is rotated in the up-down direction. The screw 9 is then inserted into the limiting groove 6 located on its upper side, and the end of the screw 9 enters the mounting groove 7 of the lower corner piece 5 on the lower side of the launch box a2. Then, the nut 8 is tightened so that the end face of the nut 8 abuts against the inner wall of the mounting groove 7 of the lower corner piece 5 on the lower side of the launch box a2, thereby connecting the launch boxes a1 / a2. Following the above steps, the launch boxes b1 / b2 and launch boxes c1 / c2 are connected in sequence. They can be connected sequentially around the circumference of the two layers of launch boxes 1 to ensure the connection stability of the launch boxes 1 on both sides.
[0040] After assembly, multiple launch boxes 1 can be placed directly on the ground for use, or as... Figure 1As shown, it is placed on the drone launch vehicle 3 for use. When in use, since all the launch boxes 1 are connected together, they can be regarded as a whole. Therefore, when adjusting the tilt angle of the launch box 1 by the adjustment mechanism 2 used in the prior art, a set of adjustment mechanisms 2 in the prior art can be set at the lower end of the first layer launch box 1. For example, a support block can be set to support one side of the first layer launch box 1, so that the angles of multiple launch boxes 1 can be adjusted in a unified manner to complete the synchronous launch of drones.
[0041] In another embodiment of the present invention, the connection method between the mounting base 10 and the mounting groove 7 is different from that in the above embodiments. To facilitate the installation of the mounting base 10, in this embodiment, as shown... Figure 5 As shown, the mounting groove 7 has an insertion groove for the mounting base 10 to be inserted. Both the insertion groove and the mounting base 10 have square cross-sections (the ends can be designed to have an arc transition). The insertion groove limits the mounting base 10. When adjusting the angle of the mounting base 10, the mounting base 10 can only rotate 90 degrees before entering the insertion groove, which facilitates the adjustment of the swing angle of the screw 9. Once the mounting base 10 enters the insertion groove, it can no longer rotate.
[0042] The mounting groove 7 is equipped with a limiting member for locking the mounting base 10. To prevent the limiting member from obstructing the screw 9 from swinging into the limiting groove 6, four sets of limiting members are provided, each located at one of the four corners of the insertion groove. The limiting member includes a fixing block 14 fixed to the inner wall of the mounting groove 7, a sliding hole 18 formed in the fixing block 14, a slider 16 slidably connected in the sliding hole 18, and a spring 17 fixed between the slider 16 and the inner wall of the sliding hole 18. When the spring 17 is not subjected to external force, the free end of the slider 16 is locked outside the insertion groove (e.g., ...). Figure 5 (As shown in the diagram), the movement direction of the slider 16 is limited by the sliding hole 18. When the free end of the slider 16 is outside the insertion groove, the slider 16 can lock the mounting seat 10 located in the insertion groove. The free end of the slider 16 has an inclined guide surface 15 on the side facing away from the insertion groove. Specifically, the free end of the guide surface 15 is inclined towards the insertion groove. When the mounting seat 10 enters the insertion groove, the mounting seat 10 and the guide surface 15 abut against each other. Pushing the mounting seat 10 will push the slider 16 away, and the slider 16 will slide into the fixing block 14. The spring 17 will contract, and the mounting seat 10 can then enter the insertion groove through the slider 16. After the mounting seat 10 is fully inserted into the insertion groove, the slider 16 slides under the restoring force of the spring 17, locking the mounting seat 10 in the insertion groove and preventing the mounting seat 10 from moving along its axial direction. Compared with the above embodiment where the mounting seat 10 is bolted to the mounting groove 7, this embodiment is more convenient to operate.
[0043] In another embodiment of the invention, such as Figure 5As shown, to facilitate the removal of the mounting base 10 from the insertion slot, the fixing block 14 has a strip-shaped hole 20 communicating with the sliding hole 18. A sliding rod 19 is fixed on the slider 16, and the sliding rod 19 is slidably connected in the strip-shaped hole 20. The inner wall of the strip-shaped hole 20 includes a smooth section and a friction section. The smooth section is located on the side close to the insertion slot, and the friction section is used to restrict the sliding of the sliding rod 19. The friction section can be obtained by the sanding process in the prior art. When the mounting base 10 is inserted into the insertion slot, the sliding rod 19 slides in the smooth section, and the mounting base 10 can push the slider 16 away relatively easily. The slider 16 can also be easily reset by the restoring force of the spring 17. When it is necessary to remove the mounting base 10, the operator slides the slide rod 19 into the friction section. After the slide rod 19 enters the friction section, the friction between the outer wall of the slide rod 19 and the inner wall of the friction section restricts the slide rod 19 from continuing to slide. This restricts the slider 16 from sliding back to its original position by the restoring force of the spring 17. This allows the end of the slider 16 to no longer obstruct the movement of the mounting base 10, and the mounting base 10 can be removed from the insertion slot. In this solution, the installation and removal of the mounting base 10 are more convenient.
[0044] In another embodiment of the present invention, a plurality of flexible protrusions 13 are fixed on the end face of the nut 8 along its circumference. Specifically, the protrusions 13 are made of rubber. When the nut 8 is tightened so that the end face of the nut 8 abuts against the inner wall of the mounting groove 7, the nut 8 squeezes the protrusions 13, causing the protrusions 13 to deform and press against the inner wall of the mounting groove 7. The protrusions 13 increase the friction between the nut 8 and the inner wall of the mounting groove 7, preventing the nut 8 from moving relative to the mounting groove 7, and making the connection between adjacent launch boxes 1 more stable.
[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.
Claims
1. A fixing and locking device, characterized in that: The system includes an upper corner piece for mounting at the upper corner of the launch box and a lower corner piece for mounting at the lower corner of the launch box. The upper and lower corner pieces are equipped with interlocking snap-fit components to limit their relative displacement in the horizontal plane. Each snap-fit component includes a lateral insertion block and a longitudinal insertion block fixed to the upper end of the upper corner piece, and a lateral insertion slot and a longitudinal insertion slot on the lower end of the lower corner piece for inserting the lateral insertion block and the longitudinal insertion block, respectively. The lateral and longitudinal insertion blocks are perpendicularly distributed. Each upper and lower corner piece includes three fixing plates fixed perpendicularly to each other in pairs. The outer side of each fixing plate without snap-fit components has a mounting groove, which connects to limit grooves in the direction of the other two fixing plates connected to it. The limit grooves of adjacent fixing plates are interconnected. The system also includes a connecting assembly for connecting adjacent launch boxes. The connecting assembly includes a mounting base, a screw hinged to the mounting base, and a nut threaded onto the screw. The mounting base is detachably connected to the mounting slot. The limiting slot is used to limit the screw, which passes through the limiting slots on two adjacent launch boxes. The nut abuts against the inner wall of the mounting slot on the launch box adjacent to the mounting base. The mounting slot has an insertion slot for the mounting base to be inserted. Both the insertion slot and the mounting base have square cross-sections. The mounting slot has a limiting component for locking the mounting base. The limiting component includes a fixing block fixed to the inner wall of the mounting slot, a sliding hole on the fixing block, a slider slidably connected in the sliding hole, and a spring fixed between the slider and the inner wall of the sliding hole. When the spring is not subjected to external force, the free end of the slider is locked outside the insertion slot. The free end of the slider has an inclined guide surface on the side facing away from the insertion slot. The fixing block has a strip hole communicating with the sliding hole. A slider is fixed on the slider and slidably connected in the strip hole. The inner wall of the strip hole includes a smooth section and a friction section. The smooth section is located on the side closer to the insertion slot, and the friction section is used to limit the sliding of the slider.
2. The fixing and locking device according to claim 1, characterized in that: Both the transverse and longitudinal insert blocks have isosceles trapezoidal cross sections.
3. The fixing and locking device according to claim 1, characterized in that: The limiting member has four sets, which are located at the four corners of the insertion slot.
4. The fixing and locking device according to claim 1, characterized in that: A mounting block is fixed on the mounting base. A connecting hole is opened at the end of the screw. A pin is inserted into the mounting block for passing through the connecting hole. The connecting hole and the pin are in clearance fit. The axis of the pin is perpendicular to the axis of the screw and the axis of the mounting groove is perpendicular to the axis of the mounting groove. When the axis of the screw is perpendicular to the axis of the mounting groove, the side wall of the screw and the inner wall of the limiting groove abut against each other.
5. The fixing and locking device according to claim 1, characterized in that: The nut has several flexible protrusions fixed circumferentially on its end face.
6. An unmanned aerial vehicle (UAV) launch system, characterized in that: It includes several launch boxes for mounting drones, with adjacent launch boxes connected by a fixing and locking device as described in any one of claims 1-5.