Typical environment simulation device for unmanned aerial vehicle
By designing a typical environment simulation device for UAVs that includes overhead and lateral environment simulation mechanisms, and utilizing telescopic components and blocking structures to simulate the complex environment during UAV flight, the problem of existing testing devices ignoring complex environments is solved, and more comprehensive testing results are achieved.
Patent Information
- Application Number
- CN202511421704.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-30
- Publication Date
- 2025-11-21
AI Technical Summary
Existing drone testing equipment ignores the complex environments that drones encounter in actual working conditions, such as vertical corners and three-dimensional right-angle vertices, resulting in incomplete testing.
A typical environment simulation device for unmanned aerial vehicles (UAVs) was designed, which includes an upper and side environment simulation mechanism. The device simulates the complex environment during the flight of the UAV through telescopic components and blocking structures, such as vertical corners and three-dimensional right-angle vertices. The device uses servo motors and gear transmissions to achieve precise position control of the blocking structures.
It provides a richer testing environment, capable of simulating drone flight in various complex scenarios, thus improving the accuracy and comprehensiveness of drone testing.
Smart Images
Figure CN120986689A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of unmanned aerial vehicles, in particular to a typical environment simulation device for unmanned aerial vehicles. BACKGROUND
[0002] With the vigorous development of the national low-altitude economy, unmanned aerial vehicles are becoming more and more important, and their applications are becoming more and more extensive. In particular, in some accidents such as earthquakes and fires, ground staff and land machines are difficult to enter the scene in the first time, and unmanned aerial vehicles can play a great advantage in the first time to deliver materials to disaster areas and find survivors. Unmanned aerial vehicles not only play an important role in earthquakes and fires, but also play a significant role in military and life fields.
[0003] In the prior art, in order to make the unmanned aerial vehicle work more safely, efficiently and stably, unmanned aerial vehicle testing is essential. In the simulation unmanned aerial vehicle testing device, the previous testing environment device only uses a flat plate to replace the upper environment and the side environment in the simulation environment, ignoring the fact that in the actual working environment of the unmanned aerial vehicle, there are not only smooth upper environment and smooth side environment, but also vertical corners and three-dimensional right-angle vertices in more working environments, such as stairs, two mutually perpendicular wall surfaces, table sides, table corners, and wall corners. SUMMARY
[0004] In view of the deficiencies of the prior art, the purpose of the present application is to provide a typical environment simulation device for unmanned aerial vehicles, which aims to solve the technical problems mentioned in the background.
[0005] In order to achieve the above-mentioned purpose, the present application is realized by the following technical solutions:
[0006] A typical environment simulation device for unmanned aerial vehicles, comprising a base mechanism, an upper environment simulation mechanism and a side environment simulation mechanism arranged on the base mechanism, the upper environment simulation mechanism comprising an upper support assembly connected with the base mechanism, a plurality of first telescopic assemblies arranged at the upper support assembly, and a first blocking structure connected with the first telescopic assemblies, the side environment simulation mechanism comprising a side support assembly connected with the base mechanism, a plurality of second telescopic assemblies arranged at the side support assembly, and a second blocking structure connected with the second telescopic assemblies.
[0007] According to one aspect of the above technical solution, the first blocking structure comprises a first rectangular bottom plate connected with the first telescopic assemblies, and two first rectangular side plates connected with the first rectangular bottom plate, the two first rectangular side plates being adjacently arranged, the first rectangular side plates being located above the first rectangular bottom plate, and the first rectangular side plates of adjacent first blocking structures abutting each other.
[0008] According to an aspect of the above technical solution, the second blocking structure comprises a second rectangular bottom plate connected with the second telescopic assembly, and two second rectangular side plates connected with the second rectangular bottom plate, the two second rectangular side plates are adjacently arranged, the second rectangular side plates are located above the second rectangular bottom plate, and the second rectangular side plates adjacent to the second blocking structure abut each other.
[0009] According to an aspect of the above technical solution, the base mechanism comprises a test base and a support frame arranged on the test base.
[0010] According to an aspect of the above technical solution, the base mechanism further comprises a rotating disc connected with the test base, a telescopic cylinder arranged on the rotating disc, an articulated motor connected with the telescopic cylinder, and a UAV platform arranged on the articulated motor.
[0011] According to an aspect of the above technical solution, the support frame is provided with a guide rail and a first screw rod in the longitudinal direction, the upper support assembly comprises an upper support and a plurality of first support plates arranged in the upper support, the first telescopic assembly comprises a first fixed plate connected with the first support plates, a first servo motor and a first telescopic rod arranged on the first fixed plate, a first gear connected with the first servo motor, and a second gear connected with the first telescopic rod, the first gear is engaged with the second gear, the size of the first gear is smaller than the size of the second gear, one end of the upper support close to the guide rail is provided with a sliding block sliding along the guide rail and a first screw nut threadedly connected with the first screw rod.
[0012] According to an aspect of the above technical solution, the first telescopic rod comprises a first housing, a first telescopic shell top cover and a first telescopic shell bottom cover arranged at two ends of the first housing, a second screw rod arranged in the first housing and rotationally connected with the first telescopic shell top cover and the first telescopic shell bottom cover at two ends through bearings, a first telescopic tube threadedly connected with the second screw rod, and a first telescopic tube cover arranged at an end of the first telescopic tube away from the second screw rod, an end of the second screw rod away from the first telescopic tube cover is connected with the second gear, the first telescopic tube cover is fixedly connected with the first rectangular bottom plate, a plurality of first fixed clamps are arranged on the upper support, and the first rectangular side plates are slidingly arranged in the first fixed clamps.
[0013] According to an aspect of the above technical solution, the side support assembly comprises a side support frame arranged on the test base, and a plurality of second support plates arranged in the side support frame; the second telescopic assembly comprises a second fixed plate connected with the second support plates, a second servo motor and a second telescopic rod arranged on the second fixed plate, a third gear connected with the second servo motor, and a fourth gear connected with the second telescopic rod; the third gear is engaged with the fourth gear, and the size of the third gear is smaller than the size of the fourth gear.
[0014] According to an aspect of the above technical solution, the second telescopic rod comprises a second housing, a second telescopic housing top cover and a second telescopic housing bottom cover arranged at two ends of the second housing, a third screw rod arranged in the second housing and rotationally connected with the second telescopic housing top cover and the second telescopic housing bottom cover at two ends thereof through bearings, a second telescopic pipe threadedly connected with the third screw rod, and a second telescopic pipe cover arranged at an end of the second telescopic pipe away from the third screw rod; an end of the third screw rod away from the second telescopic pipe cover is connected with the fourth gear; the second telescopic pipe cover is fixedly connected with the second rectangular bottom plate; a plurality of second fixed clamps are arranged on the side support frame, and the second rectangular side plate is slidingly arranged in the second fixed clamps.
[0015] Compared with the prior art, the present application has the following beneficial effects:
[0016] By arranging the upper environment simulation mechanism and the side environment simulation mechanism on the base mechanism, typical situations in the flight environment of the unmanned aerial vehicle can be simulated; specifically, the plurality of first telescopic assemblies arranged at the upper support assembly are used to realize telescoping of different lengths, so that the plurality of first blocking structures are located at different horizontal heights, to simulate the complex environment at the top during the flight of the unmanned aerial vehicle; similarly, the plurality of second telescopic assemblies arranged at the side support assembly are used to realize telescoping of different lengths, so that the plurality of second blocking structures are located at different longitudinal positions, to simulate the complex environment at the side during the flight of the unmanned aerial vehicle; the complex environment at the top and the side includes but is not limited to the vertical corner, the three-dimensional right-angle vertex, such as a staircase, two mutually perpendicular wall surfaces, a side of a table, a corner of a table, a corner of a wall, etc.; by pre-setting the telescoping instructions for the first telescopic assemblies and the second telescopic assemblies, the plurality of first telescopic assemblies and the plurality of second telescopic assemblies are telescoped to the pre-set lengths, so that the first blocking structures and the second blocking structures present different position distributions, to represent a certain complex environment, thereby providing a more abundant test environment for the test of the unmanned aerial vehicle. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 FIG. 1 is a structural schematic view of a typical environment simulation device for an unmanned aerial vehicle in a first embodiment of the present application;
[0018] Figure 2 FIG. 2 is a structural schematic view of a typical environment simulation device for an unmanned aerial vehicle in a second embodiment of the present application;Figure 1 Structure diagram of the middle and upper environmental simulation mechanism at a first perspective view;
[0019] Figure 3 For Figure 2 Structure diagram of the middle and upper environmental simulation mechanism at a first perspective view;
[0020] Figure 4 For Figure 2 Structure diagram of the middle and upper environmental simulation mechanism at a first perspective view;
[0021] Figure 5 For Figure 2 Structure diagram of the middle and upper environmental simulation mechanism at a first perspective view;
[0022] Figure 6 For Figure 2 Structure diagram of the middle and upper environmental simulation mechanism at a first perspective view;
[0023] Figure 7 For Figure 2 Structure diagram of the middle and upper environmental simulation mechanism at a first perspective view;
[0024] Figure 8 For Figure 2 Structure diagram of the middle and upper environmental simulation mechanism at a first perspective view;
[0025] Main component symbol explanation:
[0026] Unmanned aerial vehicle platform 11 Joint motor 12 First screw rod 13 Guide rail 14 Telescopic cylinder 15 Rotary disc 16 Test base 17 Upper environment simulation mechanism 2 Lateral environment simulation mechanism 3 Slider 21 First screw rod nut 20 First fixed clamp 22 Upper support 23 First rectangular side plate 24 First rectangular bottom plate 29 First support plate 25 First fixed plate 206 First gear 207 Second gear 208 First housing 204 First telescopic shell bottom cover 203 First telescopic tube 202 First telescopic tube cover 201 First telescopic shell top cover 209 Second screw rod 210 Bearing 211 First servo motor 205 Second screw rod nut 212
[0027] The following detailed description will further describe the present application in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION
[0028] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The drawings show several embodiments of the present application. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.
[0029] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there can be a middle element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be a middle element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.
[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0031] Please see Figures 1-8 The image shows a typical environment simulation device for a drone according to a first embodiment of the present invention, including a base mechanism, an upper environment simulation mechanism 2 and a side environment simulation mechanism 3 disposed on the base mechanism. The upper environment simulation mechanism 2 includes an upper support component connected to the base mechanism, a plurality of first telescopic components disposed at the upper support component, and a first blocking structure connected to the first telescopic components. The side environment simulation mechanism 3 includes a side support component connected to the base mechanism, a plurality of second telescopic components disposed at the side support component, and a second blocking structure connected to the second telescopic components.
[0032] Understandably, by setting up an upper environment simulation mechanism 2 and a side environment simulation mechanism 3 on the base mechanism, typical situations in the drone's flight environment can be simulated. Specifically, by using multiple first telescopic components at the upper support assembly to extend and retract to different lengths, multiple first blocking structures are positioned at different horizontal heights to simulate the complex environment at the top during drone flight. Similarly, by using multiple second telescopic components at the side support assembly to extend and retract to different lengths, multiple second blocking structures are positioned at different longitudinal positions to simulate the complex environment on the side during drone flight. The complex environments at the top and sides include, but are not limited to, vertical corners and three-dimensional right-angle vertices, such as stairs, two mutually perpendicular walls, the side of a table, the corner of a table, and the corner of a wall. By pre-setting extension and retraction commands for the first and second telescopic components, multiple first and second telescopic components can extend and retract to preset lengths, allowing the first and second blocking structures to present different positional distributions to represent a certain complex environment, thereby providing a richer testing environment for drone testing.
[0033] Furthermore, the base mechanism includes a test base 17 and a support frame disposed on the test base 17; the base mechanism also includes a rotating disk 16 connected to the test base 17, a telescopic cylinder 15 disposed on the rotating disk 16, a joint motor 12 connected to the telescopic cylinder 15, and a drone platform 11 disposed on the joint motor 12.
[0034] It can be understood that the rotating disc 16 can control the telescopic cylinder 15 and the upper structure to rotate in the plane together with the UAV platform 11, the telescopic cylinder 15 can control the UAV platform 11 to ascend and descend, and the joint motor 12 is composed of two direction motors, which can control the inclination angle of the UAV platform 11 in two directions to simulate the inclination of the UAV body.
[0035] Specifically, in the embodiment, the first blocking structure includes a first rectangular bottom plate 29 connected with the first telescopic assembly, and two first rectangular side plates 24 connected with the first rectangular bottom plate 29, the two first rectangular side plates 24 are adjacently arranged, the first rectangular side plate 24 is located above the first rectangular bottom plate 29, and the first rectangular side plates 24 adjacent to the first blocking structure abut each other. In the embodiment, the first blocking structure is four and arranged in a rectangular array, and more first blocking structures can be arranged in other embodiments to realize more complex typical environments.
[0036] It should be noted that the structures of the upper environment simulation mechanism 2 and the side environment simulation mechanism 3 are consistent, and therefore the working principle of the upper environment simulation mechanism 2 is described below.
[0037] It can be understood that when we need to simulate a typical situation such as a staircase, we will Figure 5 The two first telescopic assemblies close to our visual angle are extended by a small distance, and the two first telescopic assemblies far from our visual angle are extended by a large distance, so that the first rectangular bottom plate 29 far away is slightly protruding compared with the first rectangular bottom plate 29 close to us, to simulate the staircase on the top of the UAV; when we need to simulate a corner, the first telescopic assembly close to our left is extended by a small distance or not, and then the first telescopic assembly behind and to the right of the first telescopic assembly is extended by a large distance, so that the first rectangular bottom plate 29 on the first telescopic assembly behind and to the right is protruding, to simulate the corner, and the purpose of abutting each other of the first rectangular bottom plate 29 on each first telescopic assembly is to simulate more typical scenes.
[0038] Further, the support frame is provided with a guide rail 14 and a first screw rod 13 in the longitudinal direction, the upper support assembly comprises an upper support 23, a plurality of first support plates 25 arranged in the upper support 23, the first telescopic assembly comprises a first fixed plate 206 connected with the first support plate 25, a first servo motor 205 and a first telescopic rod arranged on the first fixed plate 206, a first gear 207 connected with the first servo motor 205, and a second gear 208 connected with the first telescopic rod, the first gear 207 is engaged with the second gear 208, the size of the first gear 207 is smaller than the size of the second gear 208, the upper support 23 is provided with a sliding block 21 sliding along the guide rail 14 at one end of the guide rail 14 and a first screw rod nut 20 threadedly connected with the first screw rod 13; the first telescopic rod comprises a first housing 204, a first telescopic housing top cover 209 and a first telescopic housing bottom cover 203 arranged at two ends of the first housing 204, a second screw rod 210 rotatably connected with the first telescopic housing top cover 209 and the first telescopic housing bottom cover 203 at two ends of the second screw rod 210 through bearings 211 and arranged in the first housing 204, a first telescopic tube 202 threadedly connected with the second screw rod 210, and a first telescopic tube cover 201 arranged at one end of the first telescopic tube 202 away from the second screw rod 210, one end of the second screw rod 210 away from the first telescopic tube cover 201 is connected with the second gear 208, the first telescopic tube cover 201 is fixedly connected with the first rectangular bottom plate 29, a plurality of first fixed clamps 22 are arranged on the upper support 23, and the first rectangular side plate 24 is slidingly arranged in the first fixed clamp 22.
[0039] It can be understood that by rotating the first screw rod 13 on the support frame (driven by a motor, not shown in the figure), the first screw rod nut 20 can make the upper support 23 vertically slide along the guide rail 14, thereby changing the height of the first blocking structure to simulate different types of typical environments that the unmanned aerial vehicle may face. The telescopic principle of the first blocking structure is that the first servo motor 205 drives the first gear 207 to rotate, the first gear 207 drives the second gear 208 to rotate, achieving the function of speed reduction, the second gear 208 drives the second screw rod 210 to rotate, and then the first telescopic tube 202 together with the first blocking structure changes position through the second screw rod nut 212. The first fixed clamp 22 functions to constrain the sliding direction of the first rectangular side plate 24 so that it does not deviate sideways, improving stability. The motion output by the first servo motor 205 is transmitted to the environment simulation mechanism module, and the motion process is a two-stage transmission system. The first-stage transmission is gear transmission, and the first gear 207 at the output shaft end of the first servo motor 205 is engaged with the second gear 208 at the shaft end of the second screw rod 210 for transmission.
[0040] The first-stage transmission speed reduction ratio is:
[0041]
[0042] Wherein, Z1 is the number of teeth of the first gear 207, Z2 is the number of teeth of the second gear 208;
[0043] The second-stage transmission is a screw rod transmission, and the rotary motion of the second screw rod 210 is converted into the linear motion of the nut, when the first blocking structure is extended and retracted by a distance S, that is, the linear motion distance S of the nut, at this time, the number of rotations n of the second screw rod 210 is:
[0044]
[0045] Wherein, S is the extension distance of the extension mechanism, and L is the lead of the screw rod;
[0046] The number of rotations N of the rotor of the servo motor is:
[0047]
[0048] The angle θ of the rotation of the rotor of the servo motor is:
[0049]
[0050] When the unmanned aerial vehicle needs to simulate a specific environment, only the extension distance S of each first blocking structure needs to be input, the system calculates the required rotation angle of the rotor of the first servo motor 205 through the above principle, and then the system controls the individual position control of each first servo motor 205, so as to realize the simulation of the typical environment of the unmanned aerial vehicle.
[0051] Further, the side support assembly includes a side support provided on the test base 17, and a plurality of second support plates provided in the side support. The second extension assembly includes a second fixed plate connected with the second support plates, a second servo motor and a second extension rod provided on the second fixed plate, a third gear connected with the second servo motor, and a fourth gear connected with the second extension rod. The third gear is engaged with the fourth gear, and the size of the third gear is smaller than that of the fourth gear. The second extension rod includes a second housing, a second extension housing top cover and a second extension housing bottom cover provided at two ends of the second housing, a third screw rod provided in the second housing and rotatably connected with the second extension housing top cover and the second extension housing bottom cover at two ends thereof through bearings, a second extension pipe threadedly connected with the third screw rod, and a second extension pipe cover provided at an end of the second extension pipe away from the third screw rod. An end of the third screw rod away from the second extension pipe cover is connected with the fourth gear. The second extension pipe cover is fixedly connected with the second rectangular bottom plate. A plurality of second fixed clamps are provided on the side support, and the second rectangular side plates are slidingly provided in the second fixed clamps.
[0052] It can be understood that, in some preferred embodiments, the side support can also be slid along the test base 17 by setting a guide rail slider, like the upper support 23, to change the initial position of the second blocking structure, to provide a more typical environment. The extension principle of the second blocking structure is consistent with that of the first blocking structure, which will not be repeated here.
[0053] In summary, the typical environment simulation device for unmanned aerial vehicles in the above embodiments of the present application can provide a more diverse test environment for the testing of unmanned aerial vehicles.
[0054] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0055] The above-described embodiments only express several implementation manners of the present application, which are described in detail and specifically, but should not be understood as a limitation on the patent scope of the present application. It should be noted that, for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.
Claims
1. A drone typical environment simulation device, characterized in that, The base mechanism, the upper environment simulation mechanism and the side environment simulation mechanism, the upper environment simulation mechanism includes an upper support assembly connected with the base mechanism, a plurality of first telescopic assemblies arranged at the upper support assembly, and a first blocking structure connected at the first telescopic assemblies, the side environment simulation mechanism includes a side support assembly connected with the base mechanism, a plurality of second telescopic assemblies arranged at the side support assembly, and a second blocking structure connected at the second telescopic assemblies.
2. The drone typical environment simulation apparatus according to claim 1, wherein, The first blocking structure includes a first rectangular bottom plate connected with the first telescopic assemblies, and two first rectangular side plates connected with the first rectangular bottom plate, the two first rectangular side plates are arranged adjacently, the first rectangular side plates are located above the first rectangular bottom plate, and the adjacent first rectangular side plates of the first blocking structure abut each other. 3.The UAV typical environment simulation apparatus of claim 1, wherein, The second blocking structure includes a second rectangular bottom plate connected with the second telescopic assemblies, and two second rectangular side plates connected with the second rectangular bottom plate, the two second rectangular side plates are arranged adjacently, the second rectangular side plates are located above the second rectangular bottom plate, and the adjacent second rectangular side plates of the second blocking structure abut each other.
4. The drone typical environment simulation apparatus according to claim 2 or 3, characterized in that, The base mechanism includes a test base and a support frame arranged on the test base.
5. The drone typical environment simulation apparatus according to claim 4, wherein, The base mechanism further includes a rotating disc connected with the test base, a telescopic cylinder arranged on the rotating disc, a joint motor connected with the telescopic cylinder, and a UAV platform arranged on the joint motor.
6. The drone typical environment simulation apparatus according to claim 4, wherein, The support frame is longitudinally provided with a guide rail and a first screw rod, the upper support assembly includes an upper support frame, a plurality of first support plates arranged in the upper support frame, the first telescopic assembly includes a first fixed plate connected with the first support plates, a first servo motor and a first telescopic rod arranged on the first fixed plate, a first gear connected with the first servo motor, and a second gear connected with the first telescopic rod, the first gear is engaged with the second gear, the size of the first gear is smaller than the size of the second gear, and the upper support frame is provided, at one end close to the guide rail, with a sliding block sliding along the guide rail and a first screw rod nut threadedly connected with the first screw rod.
7. The drone typical environment simulation apparatus according to claim 6, wherein, The first telescopic rod includes a first housing, a first telescopic shell top cover and a first telescopic shell bottom cover arranged at two ends of the first housing, a second screw rod arranged in the first housing and rotationally connected with the first telescopic shell top cover and the first telescopic shell bottom cover at two ends of the bearing, respectively, a first telescopic tube threadedly connected with the second screw rod, and a first telescopic tube cover arranged at one end of the first telescopic tube away from the second screw rod, one end of the second screw rod away from the first telescopic tube cover is connected with the second gear, the first telescopic tube cover is fixedly connected with the first rectangular bottom plate, the upper support frame is provided with a plurality of first fixed clamps, and the first rectangular side plates are slidingly arranged in the first fixed clamps. 8.The UAV typical environment simulation apparatus of claim 4, wherein, The side support assembly comprises a side support frame arranged on the test base, a plurality of second support plates arranged in the side support frame, the second telescopic assembly comprises a second fixed plate connected with the second support plates, a second servo motor and a second telescopic rod arranged on the second fixed plate, a third gear connected with the second servo motor, and a fourth gear connected with the second telescopic rod, the third gear is engaged with the fourth gear, and the size of the third gear is smaller than the size of the fourth gear.
9. The drone typical environment simulation apparatus of claim 6, wherein, The second telescopic rod comprises a second shell, a second telescopic shell top cover and a second telescopic shell bottom cover arranged at two ends of the second shell, a third screw rod arranged in the second shell and rotationally connected with the second telescopic shell top cover and the second telescopic shell bottom cover at two ends through bearings, a second telescopic pipe threadedly connected with the third screw rod, and a second telescopic pipe cover arranged at an end of the second telescopic pipe away from the third screw rod, an end of the third screw rod away from the second telescopic pipe cover is connected with the fourth gear, the second telescopic pipe cover is fixedly connected with the second rectangular bottom plate, a plurality of second fixed clamps are arranged on the side support frame, and the second rectangular side plate is slidingly arranged in the second fixed clamps.