Water level early warning device for hydrological monitoring

Abstract

The invention relates to the technical field of water level monitoring, in particular to a water level early warning device for hydrological monitoring, which comprises a first mounting shell and a second mounting shell, a rotating block is rotatably mounted in a rotating frame, and the rotating block is driven to rotate by a second driving part mounted in the rotating block; a sliding block is installed on the lower portion of the interior of the movable column through a displacement mechanism, and a radar wave collector is fixedly installed on the lower portion of the interior of the sliding block. A measuring shell is fixedly connected to the end, away from the second motor, of the movable column, a cavity is formed in the measuring shell, a radar wave generator is rotationally installed in the cavity, and an adjusting part for adjusting the angle of the radar wave generator is arranged on one side of the radar wave generator. By means of the structural design, the water levels of the two sides and the middle position of a river channel can be effectively monitored, and compared with a radar water level gauge in the prior art, the monitoring range is larger, and the monitoring effect is better.

Description

Technical Field

[0001] The invention relates to the technical field of water level monitoring, and in particular to a water level early warning device for hydrological monitoring. Background Art

[0002] Hydrological monitoring refers to a complex and comprehensive system engineering project that uses scientific methods to monitor, measure, analyze and warn the temporal and spatial distribution and change patterns of water in nature. It is a basic, comprehensive and global work, which is of great significance to water resources regulation, water environment protection and national economic construction. Hydrological monitoring mainly focuses on the continuous or intermittent process monitoring of water sources, water content (including flow, water level, etc.), water quality (comprehensive indicators of pollutants such as organic matter, inorganic matter and radioactive substances) and water ecological environment of lakes, rivers, wetlands or terrestrial water bodies. It collects, characterizes, summarizes and analyzes the natural processes, states, system relationships and evolution laws of the hydrological system. The main monitoring contents include but are not limited to: water level, flow, flow rate, rainfall (snow), evaporation, sediment, ice, soil moisture, water quality, etc. The real-time monitoring and collection of these data provide basic data and basis for water resources regulation, water environment protection, disaster warning, etc.

[0003] The radar water level meter in the prior art can only transmit and receive radar waves in the vertical direction. Therefore, when the radar water level meter is fixed, it can only monitor the water level of a single point. The monitored water level range is too small. When the river channel is blocked by stones or other solids, causing the water levels on both sides of the river channel to be inconsistent with the middle water level, the accuracy of the monitoring results will be greatly reduced, resulting in erroneous monitoring results, which can easily cause staff to make misjudgments. Summary of the invention

[0004] The purpose of the present invention is to solve the above problems existing in the prior art and to propose a water level early warning device for hydrological monitoring.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a water level warning device for hydrological monitoring, comprising a first mounting shell and a second mounting shell, a mounting plate is detachably mounted on a side of the first mounting shell close to the second mounting shell, a rotating frame is arranged on a side of the mounting plate close to the second mounting shell, the rotating frame is driven to rotate by a first driving unit installed inside the first mounting shell, an opening is arranged on the left side of the rotating frame, a rotating block is rotatably mounted inside the rotating frame, the rotating block is driven to rotate by a second driving unit installed inside the rotating frame, and a movable column is detachably mounted on a side of the rotating block away from the mounting plate, a slider is installed at the lower part of the movable column through a displacement mechanism, and a radar wave collector is fixedly mounted at the lower part of the slider;

[0006] One end of the movable column away from the second motor is fixedly connected with a measuring shell, a cavity is arranged inside the measuring shell, a radar wave generator is rotatably installed inside the cavity, and an adjusting part for adjusting the angle of the radar wave generator is arranged on one side.

[0007] Preferably, the first driving part comprises a first motor fixedly mounted inside the first mounting shell, and the output end of the first motor is key-connected with the rotating frame after rotating through the mounting plate.

[0008] Preferably, the second driving part comprises a second motor fixedly mounted inside the rotating block, and the output end of the second motor is fixedly connected to the inner wall of the rotating frame after rotating and penetrating the rotating block.

[0009] Preferably, the displacement mechanism includes a slide groove opened at the lower part of the movable column, the slider is slidably installed in the slide groove, a threaded groove is opened above the slider, and a fourth motor is fixedly installed at the upper part of the inner part of one end of the movable column close to the rotating block, and the output end of the fourth motor is keyed to a screw rod, and the screw rod is threadedly connected to the threaded groove.

[0010] Preferably, limit blocks are arranged on the left and right sides of the sliding block, and the movable column is provided with limit grooves engaged with the limit blocks.

[0011] Preferably, two groups of third motors are symmetrically installed on both sides of the lower interior of one end of the movable column close to the rotating block, and the output ends of the two groups of third motors are keyed to the first reflecting plate located below the slider, and micro motors are fixedly installed on both the front and rear sides of the interior below the slider, and the output ends of the micro motors are keyed to the driving gears, and a rotating shaft rotatably installed below the slider is provided below the micro motor, and a second reflecting plate is fixedly installed on the rotating shaft, and the surfaces of the second reflecting plate and the first reflecting plate are coated with a coating that can reflect radar waves.

[0012] Preferably, a protective pad installed inside the slide groove is provided on one side of the two first reflective plates that are away from each other, and the protective pad is made of soft material.

[0013] Preferably, the adjusting part comprises an electric push rod fixedly installed inside the measuring shell, and the output end of the electric push rod is fixedly connected to the radar wave generator.

[0014] Preferably, a reinforcement block is fixedly installed above the measuring shell, a stabilizing steel wire is fixedly connected to the reinforcement block, and a winding device for automatically winding the stabilizing steel wire is installed inside the second mounting shell.

[0015] Preferably, an anti-collision plate is arranged above the rotating frame, one end of the anti-collision plate is fixedly connected to the mounting plate, the other end of the anti-collision plate is fixedly connected to the second mounting shell, and the anti-collision plate is rotatably mounted on the left opening side of the rotating frame with a first rotating plate.

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] 1. In the present application, by setting up a driving slider, a slide trough and a radar wave collector, the driving slider can drive the radar wave collector to move under the movable column, thereby adjusting the position of the radar wave collector. With the cooperation of the radar wave generator, the water level at different points can be monitored. Compared with the radar water level meter in the prior art, its monitoring range is effectively improved.

[0018] 2. In the present application, by setting the first motor, the second motor and the movable column, the movable columns in the two devices can be controlled to rotate to the same angle toward the river channel, and the first motor can be controlled to rotate to an appropriate angle, so that the radar wave emitted by the radar wave generator on one side can be reflected by the water surface and received by the radar wave collector of the device on the other side. When monitoring the middle area of ​​the river channel, due to the initial installation of the distance between the two devices, the liquid level height of the river channel close to the shore, the rotation angle of the rotating frame, the rotation angle of the rotating block and the rotation angle of the radar wave generator, the data can be quickly adjusted to the appropriate monitoring angle through internal processing, and monitoring and calibration can be carried out. Similarly, since the angle can be adjusted, the monitoring range of the water level in the middle of the river channel is also much larger than that of ordinary radar water level gauges.

[0019] 3. In the present application, by setting up the first reflector and the second reflector, when the signal received by the radar wave collector increases significantly to the position where the signal intensity is maximum, the two driving gears are controlled to rotate, and the interlocking gears meshing therewith rotate, so that the two second reflectors form an angle, and the angle is in the direction where the signal wave is reflected. The first reflector and the second reflector can concentrate the signal waves reflected from the water surface and be received by the radar wave collector, making the signal reception of the radar wave collector more accurate.

[0020] 4. In the present application, by setting up the measuring shell, radar wave generator and electric push rod, when the electric push rod is running, the radar wave generator can be pulled or pushed to tilt it, so as to adjust the angle of the working end of the radar wave generator, so that the radar wave contacts the water surface at different angles and generates reflection, and then is received by the radar wave collector after reflection, thereby facilitating the monitoring of water levels at different points.

[0021] In summary, through the design of the above-mentioned structure, the present application can effectively monitor the water levels on both sides and in the middle of the river. Compared with the radar water level meter in the prior art, it not only has a larger monitoring range but also a better monitoring effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a hydrological monitoring water level early warning device proposed by the present invention;

[0023] Figure 2 A schematic structural diagram of a hydrological monitoring water level warning device proposed by the present invention from another perspective;

[0024] Figure 3 for Figure 2 A magnified schematic diagram of part A;

[0025] Figure 4 This is a schematic diagram of the installation of a hydrological monitoring water level warning device proposed by the present invention;

[0026] Figure 5 for Figure 4 A magnified schematic diagram of part B;

[0027] Figure 6 A schematic diagram of the internal structure of a hydrological monitoring water level warning device proposed by the present invention;

[0028] Figure 7 A schematic diagram of a partially cutaway axonometric structure of a rotating frame, a rotating block and a movable column of a hydrological monitoring water level warning device proposed by the present invention;

[0029] Figure 8 A schematic diagram of a half-section axonometric structure of a hydrological monitoring water level warning device proposed by the present invention;

[0030] Fig. 9 A schematic diagram of the internal structure of a mounting plate and a first mounting shell portion of a hydrological monitoring water level warning device proposed by the present invention;

[0031] Fig.10 A schematic diagram of the internal structure of a slider portion of a hydrological monitoring water level warning device proposed by the present invention;

[0032] Fig.11 This is a schematic diagram of the internal structure of a measuring shell and a second mounting shell of a hydrological monitoring water level warning device proposed by the present invention.

[0033] In the figure: 1 mounting plate, 2 first mounting shell, 201 first motor, 3 second mounting shell, 4 anti-collision plate, 5 first rotating plate, 6 rotating frame, 7 rotating block, 701 second motor, 8 movable column, 801 slide groove, 9 first reflecting plate, 901 third motor, 10 protective pad, 11 fourth motor, 111 screw rod, 12 measuring shell, 13 reinforcement block, 14 stabilizing wire, 15 radar wave generator, 16 electric push rod, 17 second rotating plate, 18 slider, 19 threaded groove, 20 radar wave collector, 21 second reflecting plate, 22 driving gear, 23 linkage gear. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings 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.

[0035] Reference Figures 1 to 11 A hydrological monitoring water level warning device comprises a mounting plate 1, a first mounting shell 2 is detachably mounted on one side of the mounting plate 1, a first motor 201 is fixedly mounted inside the first mounting shell 2, and a rotating frame 6 is detachably mounted on the output end of the first motor 201 after rotating through the mounting plate 1, and the rotating frame 6 is provided with two openings on the left side and the front side (as shown in the attached manual Figure 7 shown).

[0036] A rotating block 7 is rotatably installed inside the rotating frame 6, and a second motor 701 is fixedly installed inside the rotating block 7. The output end of the second motor 701 is fixedly connected to the inner wall of the rotating frame 6 after rotating and passing through the rotating block 7, so that when the second motor 701 is running, due to the limiting effect of its output end, the body of the second motor 701 can rotate, further driving the rotating block 7 to rotate inside the rotating frame 6.

[0037] A movable column 8 is detachably mounted on the side of the rotating block 7 away from the mounting plate 1. A slide groove 801 is provided at the bottom of the movable column 8. A slider 18 is slidably mounted inside the slide groove 801. In order to make the slider 18 move more stably inside the slide groove 801, a limit block can be provided on the left and right sides of the slider 18. A limit groove engaged with the limit block is provided on the movable column 8. A radar wave collector 20 is fixedly mounted at the bottom of the slider 18. The working end of the radar wave collector 20 faces downward and is located outside the slider 18. A fourth motor 11 is fixedly mounted on the top of the end of the movable column 8 close to the rotating block 7. A screw rod 111 is keyed to the output end of the fourth motor 11. A threaded groove 19 is provided above the slider 18. The screw rod 111 is threadedly connected to the threaded groove 19. When the fourth motor 11 is running, the screw rod 111 can be driven to rotate. Under the action of the screw rod 111, the slider 18 can move back and forth inside the slide groove 801, so as to facilitate the subsequent monitoring of the water level conditions at other points.

[0038] Two sets of third motors 901 are fixedly installed symmetrically on both sides of the lower inner part of the end of the movable column 8 close to the rotating block 7. The output ends of the two sets of third motors 901 are keyed to the first reflective plates 9. The first reflective plates 9 are located below the slider 18. In the initial state, the two first reflective plates 9 are both in a horizontal state. Both sides of the first reflective plates 9 are provided with protective pads 10 installed inside the slide groove 801. The protective pads 10 are made of soft materials and can play a certain buffering and protective role for the first reflective plates 9 during the rotation process.

[0039] Micromotors are fixedly installed on both the front and rear sides of the interior below the slider 18, and the output end of the micromotor is keyed to a driving gear 22. A rotating shaft rotatably installed below the slider 18 is provided below the micromotor, and a second reflecting plate 21 is fixedly installed on the rotating shaft. The surfaces of the second reflecting plate 21 and the first reflecting plate 9 are coated with a coating that can reflect radar waves. A linkage gear 23 is fixedly installed at one end of the rotating shaft close to the driving gear 22, and the linkage gear 23 is meshed and connected with the driving gear 22. When the micromotor is running, the driving gear 22 can be driven to rotate, and the driving gear 22 further drives the linkage gear 23 to rotate. While the linkage gear 23 is rotating, it can drive the second reflecting plate 21 to rotate through the rotating shaft. When the first reflecting plate 9 and the second reflecting plate 21 are rotated to a specified angle, the first reflecting plate 9 and the second reflecting plate 21 can concentrate the signal waves reflected by the water surface, so that the signal waves are received by the radar wave collector 20, so that the signal reception of the radar wave collector 20 is more accurate.

[0040] One end of the movable column 8 away from the second motor 701 is fixedly connected to a measuring shell 12, a cavity is arranged inside the measuring shell 12, the cavity is provided with a downward opening, a rotating shaft is fixedly installed between the inner walls on both sides of the cavity, a radar wave generator 15 is rotatably installed on the rotating shaft, and one side of the radar wave generator 15 is provided with an electric push rod 16 fixedly installed inside the measuring shell 12, the output end of the electric push rod 16 is fixedly connected to the radar wave generator 15, when the electric push rod 16 is running, the radar wave generator 15 can be pulled or pushed to tilt it, so as to adjust the angle of the working end of the radar wave generator 15, so that the radar wave contacts the water surface at different angles and generates reflection, and then is received by the radar wave collector 20 after reflection.

[0041] A reinforcement block 13 is fixedly installed on the top of the measuring shell 12, and a stabilizing steel wire 14 is fixedly connected to the reinforcement block 13. A second mounting shell 3 is arranged on the side of the measuring shell 12 away from the movable column 8, and a winding device for automatically winding the stabilizing steel wire 14 is installed inside the second mounting shell 3. The winding device is a prior art, and its specific structural design is not repeated here. Through the arrangement of the reinforcement block 13, the stabilizing steel wire 14 and the winding device, the end of the movable column 8 away from the rotating frame 6 can be supported to a limited extent. On the one hand, it can prevent the end of the movable column 8 away from the rotating frame 6 from tilting downward due to the action of gravity, and on the other hand, it does not affect the rotation of the movable column 8 itself. A second rotating plate 17 is arranged between the radar wave generator 15 and the second mounting shell 3. The second rotating plate 17 is rotatably installed on the measuring shell 12 to protect the radar wave generator 15.

[0042] An anti-collision plate 4 is arranged above the rotating frame 6, one end of the anti-collision plate 4 is fixedly connected to the mounting plate, the other end of the anti-collision plate 4 is fixedly connected to the second mounting shell 3, and the anti-collision plate 4 is located at the left opening of the rotating frame 6 (such as Figure 7 A first rotating plate 5 is rotatably installed on one side (in the direction shown). In actual use, camouflage materials can be applied or glued on the outer surfaces of the anti-collision plate 4 and the first rotating plate 5 as needed, so that the device can be protected while not causing any sense of incongruity in the natural environment and not affecting the natural landscape.

[0043] The specific working principle of the present invention is as follows: before the device works, it needs to be simply installed on the ground first, and then arrive at the installation location (canyon cliff) for final fixation after the installation is completed. During the initial installation, the first installation shell 2 is fixedly connected to one side of the installation plate 1, and the first motor 201 is installed inside the first installation shell 2. The output shaft of the first motor 201 is connected to the installation plate 1 through rotation and fixedly connected to the rotating frame 6, and then the rotating block 7 is placed inside the rotating frame 6 to ensure that the output shaft of the second motor 701 inside the rotating block 7 is downward and fixedly connected to the rotating frame 6. The rotation of the second motor 701 will cause the rotating block 7 to rotate inside the rotating frame 6. After the initial installation, the staff brings the preliminarily installed device to the installation location, fixes the installation plate 1, the first installation shell 2 and the second installation shell 3 on the cliff through rock nails, and keeps the movable column 8 horizontal, the radar wave generator 15 vertically downward, and the rotation angle of the radar wave generator 15 can be controlled by the electric push rod 16.

[0044] The two devices are a group and are installed on both sides of the canyon cliffs in opposite directions. Camouflage materials can be glued on the outside of the anti-collision plate 4 and the first rotating plate 5, so that the device is protected and does not feel out of place in the natural environment, and does not affect the natural landscape. When monitoring, the second motor 701 is controlled to rotate, so that the rotating block 7 and the movable column 8 push the first rotating plate 5 away, rotate in the direction, rotate toward the river, drive the electric push rod 16 to contract, and make the radar wave generator 15 rotate toward the direction of the slide 801. The third motor 901 is controlled to make the two first reflective plates 9 connected to the bottom of the movable column 8 rotate, and the radar wave collector 20 at the bottom of the slider 18 is exposed. The inner side of the first reflective plate 9 and the lower side of the second reflective plate 21 are coated with a coating that can reflect radar waves. The fourth motor 11 is controlled to rotate, and the screw rod 111 rotates to drive the slider 18 to slide inside the slide 801. The radar wave collector 20 receives signals at any time. When the signal received by the radar wave collector 20 increases significantly and reaches the maximum position, the two driving gears 22 are controlled to rotate, and the linkage gear 23 meshing with them rotates. The two second reflectors 21 form an angle, and the angle is toward the direction where the signal wave is reflected. The first reflector 9 and the second reflector 21 can concentrate the signal wave reflected from the water surface and be received by the radar wave collector 20. The signal reception of the radar wave collector 20 is more accurate. By analyzing the angle of the radar wave generator 15 and the reception time difference, the water level height can be obtained. The traditional radar water level gauge can only transmit and receive radar waves in the vertical direction, with a single position and a small monitored water level range. When the river channel is blocked by stones or other solids, resulting in inconsistent water levels, the accuracy of the monitoring results is greatly reduced. After the device is preliminarily calibrated to the position of the transmitting and receiving radar wave angles, it can be coordinated according to the first measured water level height to ensure that the radar wave emitted by the radar wave generator 15 is reflected by the water surface after emission, and the radar wave collector 20 re-concentrates the signal collection at the best receiving position. At this time, the position of the radar wave reflected by the water surface is different from the first reflection position, and the rotating block 7 and the movable column 8 can be rotated horizontally, so that the water surface monitoring position range is larger, and the result obtained after measurement will be more accurate.

[0045] The mounting plates 1 on both sides of the canyon cliff are installed at corresponding positions, but the position of the second mounting shell 3 is opposite. The two movable columns 8 are controlled to rotate to the same angle toward the river channel, and the first motor 201 is controlled to rotate to an appropriate angle, so that the radar wave emitted by the radar wave generator 15 on one side can be reflected by the water surface and can be received by the radar wave collector 20 on the other side. When monitoring the middle area of ​​the river channel, due to the distance between the devices on both sides during the initial installation, the liquid level height of the river channel close to the shore, the rotation angle of the rotating frame 6, the rotation angle of the rotating block 7 and the rotation angle of the radar wave generator 15, the data can be quickly adjusted to the appropriate monitoring angle and monitored and calibrated after internal processing. Similarly, since the angle can be adjusted, the monitoring range of the water level in the middle of the river channel is also much larger than that of ordinary radar water level gauges.

[0046] A stabilizing steel wire 14 is wound inside the second mounting shell 3 , passes through the second mounting shell 3 and is fixedly connected to the outside of the reinforcement block 13 . The stabilizing steel wire 14 is released or retracted as the movable column 8 rotates, and is kept fixed during stability monitoring, so that the device has a stronger impact resistance.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A water level warning device for hydrological monitoring, comprising a first installation shell (2) and a second installation shell (3), characterized in that: A mounting plate (1) is detachably mounted on a side of the first mounting shell (2) close to the second mounting shell (3); a rotating frame (6) is arranged on a side of the mounting plate (1) close to the second mounting shell (3); the rotating frame (6) is driven to rotate by a first driving unit installed inside the first mounting shell (2); an opening is arranged on the left side of the rotating frame (6); a rotating block (7) is rotatably mounted inside the rotating frame (6); the rotating block (7) is driven to rotate by a second driving unit installed inside the rotating frame (6); and a movable column (8) is detachably mounted on a side of the rotating block (7) away from the mounting plate (1); a slider (18) is installed at a lower part of the movable column (8) through a displacement mechanism; and a radar wave collector (20) is fixedly mounted at a lower part of the slider (18); One end of the movable column (8) away from the second motor (701) is fixedly connected to a measuring shell (12), a cavity is provided inside the measuring shell (12), a radar wave generator (15) is rotatably installed inside the cavity, and an adjustment portion for adjusting the angle of the radar wave generator (15) is provided on one side of the radar wave generator (15).

2. The water level early warning device for hydrological monitoring according to claim 1 is characterized in that: The first driving part comprises a first motor (201) fixedly mounted inside the first mounting shell (2), and the output end of the first motor (201) is key-connected with the rotating frame (6) after rotating through the mounting plate (1).

3. The water level early warning device for hydrological monitoring according to claim 1 is characterized in that: The second driving part comprises a second motor (701) fixedly mounted inside the rotating block (7), and the output end of the second motor (701) is fixedly connected to the inner wall of the rotating frame (6) after rotating and penetrating the rotating block (7).

4. The water level early warning device for hydrological monitoring according to claim 1 is characterized in that: The displacement mechanism comprises a slide groove (801) provided at the lower part of the movable column (8), the slider (18) is slidably installed in the slide groove (801), a thread groove (19) is provided above the slider (18), and a fourth motor (11) is fixedly installed at the upper part of the inner part of one end of the movable column (8) close to the rotating block (7), a screw rod (111) is key-connected to the output end of the fourth motor (11), and the screw rod (111) is threadedly connected to the thread groove (19).

5. The water level early warning device for hydrological monitoring according to claim 1 is characterized in that: Limiting blocks are arranged on the left and right sides of the sliding block (18), and limiting grooves engaging with the limiting blocks are arranged on the movable column (8).

6. The water level early warning device for hydrological monitoring according to claim 1, characterized in that: Two groups of third motors (901) are symmetrically installed on both sides of the lower interior of one end of the movable column (8) close to the rotating block (7), and the output ends of the two groups of third motors (901) are key-connected to the first reflecting plate (9) located below the slider (18). Micro motors are fixedly installed on both the front and rear sides of the interior below the slider (18), and the output ends of the micro motors are key-connected to the driving gear (22). A rotating shaft rotatably installed below the slider (18) is provided below the micro motor, and a second reflecting plate (21) is fixedly installed on the rotating shaft, and the surfaces of the second reflecting plate (21) and the first reflecting plate (9) are coated with a coating capable of reflecting radar waves.

7. The water level early warning device for hydrological monitoring according to claim 6 is characterized in that: A protective pad (10) installed inside the slide groove (801) is provided on the side of the two first reflection plates (9) that are away from each other, and the protective pad (10) is made of a soft material.

8. The water level early warning device for hydrological monitoring according to claim 1, characterized in that: The adjustment part comprises an electric push rod (16) fixedly installed inside the measuring shell (12), and the output end of the electric push rod (16) is fixedly connected to the radar wave generator (15).

9. The water level early warning device for hydrological monitoring according to claim 1, characterized in that: A reinforcement block (13) is fixedly mounted above the measuring shell (12), a stabilizing steel wire (14) is fixedly connected to the reinforcement block (13), and a winding device for automatically winding the stabilizing steel wire (14) is installed inside the second mounting shell (3).

10. The water level early warning device for hydrological monitoring according to claim 1, characterized in that: An anti-collision plate (4) is arranged above the rotating frame (6), one end of the anti-collision plate (4) is fixedly connected to the mounting plate, the other end of the anti-collision plate (4) is fixedly connected to the second mounting shell (3), and the anti-collision plate (4) is rotatably mounted on the left opening side of the rotating frame (6) with a first rotating plate (5).

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