Radar wave speed measuring device with adjustable angle

Abstract

The utility model discloses an angle-adjustable radar wave velocity measurement device, which comprises a radar wave velocity meter, a positioning assembly and an aluminum plate, the lower end of the aluminum plate is fixedly connected with two mounting plates, a main shaft is rotatably connected between the two mounting plates, one end of the main shaft is fixedly provided with a bracket, and the main shaft is provided with a horizontal adjusting mechanism for adjusting the horizontal angle of the bracket. One end of the support is rotationally connected with a shell, a pitching adjusting motor is installed in the shell, the radar wave current meter and the positioning assembly are installed in the shell, and the aluminum plate is provided with a plurality of fixing assemblies used for being connected with a cableway. According to the utility model, the horizontal angle and the pitching angle of the radar wave flow velocity meter can be adjusted in real time according to the change of the water level, so that the radar wave beam and a lead fish monitoring point can be positioned on the same vertical line, the water flow velocities at different water depths are compared, and the monitoring precision of the water flow velocity is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydrological monitoring equipment technical field especially relates to a radar wave speed measuring device of adjustable angle. BACKGROUND

[0002] The car on the hydrological cableway is the carrier of various hydrological test instruments, can move on the bearing cable, and the car also has a lifting function, through corresponding mechanical structure and driving equipment, the speed measuring instrument (lead fish) installed below can be controlled to rise and fall in the vertical direction to adapt to the measurement requirement of different water depth, the car is also provided with driving device usually including motor, speed reducer and the like, the main role is to provide power for the movement of the car on the bearing cable, the driving motor rotates according to the set direction and speed, the power output is reasonably adjusted through the speed reducer, and the car is driven to move back and forth along the bearing cable stably, the coverage of different test section positions is realized, in addition, there is a radar wave current meter for non-contact measurement of flow velocity, the radar wave current meter is inclined to irradiate on the water surface at a certain angle, the flow velocity and water level at different positions can be accurately measured, the flow of river is accurately calculated using flow velocity area method and the like, which is one of the most common application scenarios of hydrological cableway, and it has important significance for grasping the water resource quantity of river and analyzing the change rule of water flow.

[0003] At present, the traditional speed measuring instrument and radar wave current meter are separately arranged on the river channel to monitor the water surface, although the flow velocities at different positions of the river channel are obtained, but the measurement point of the lead fish and the measurement point of the radar wave current meter cannot be kept on the same vertical line, resulting in that the monitored data has large deviation, and the flow data at different water levels cannot be compared. UTILITY MODEL CONTENTS

[0004] The utility model discloses a radar wave speed measuring device of adjustable angle, which solves the problem that the measurement point of the lead fish and the measurement point of the radar wave current meter cannot be kept on the same vertical line in the prior art, resulting in that the monitored data has large deviation, and the flow data at different water levels cannot be compared.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A radar wave speed measuring device of adjustable angle, comprising a radar wave current meter, a positioning assembly and an aluminum plate, the lower end of the aluminum plate is fixedly connected with two mounting plates, a main shaft is rotatably connected between the two mounting plates, one end of the main shaft is fixedly connected with a support, and a horizontal adjusting mechanism for adjusting the horizontal angle of the support is installed on the main shaft.

[0007] One end of the support is rotationally connected with a shell, a pitch adjusting motor is installed in the shell, and the radar wave flow velocity meter and the positioning assembly are installed in the shell.

[0008] A plurality of fixing assemblies for connecting with the cable way are arranged on the aluminum plate.

[0009] Preferably, the horizontal adjusting mechanism is composed of a main shaft and two supporting rods, two rolling bearings are fixedly connected to the shaft wall of the main shaft, the side walls of the two mounting plates are fixedly connected with the outer rings of the rolling bearings through round holes, one end of the main shaft penetrates through the rolling bearings and is fixedly connected with a first gear, the first gear is engaged with a second gear, a horizontal adjusting motor is fixedly connected to one side of the mounting plate, the output end of the horizontal adjusting motor penetrates through the side wall of the mounting plate and is fixedly connected with the second gear in the same center, and the two supporting rods are fixed between the two mounting plates.

[0010] Preferably, the main shaft is of a hollow structure, a threading hole is formed in the shaft wall of the main shaft, and a rubber sleeve is fixedly connected in the threading hole and located between the two mounting plates.

[0011] Preferably, the two ends of the support are provided with bending portions, one of the bending portions is fixedly connected with a supporting shaft, the other bending portion is fixedly connected with a connecting pipe, the opposite sides of the shell are rotationally connected with the supporting shaft and the connecting pipe through sealing bearings respectively, the pitch adjusting motor is fixed in the shell through a support, the output end of the pitch adjusting motor is fixedly connected with one end of the supporting shaft in the same center through a rigid coupling, and the axis of the main shaft is perpendicular to the axis of the support.

[0012] Preferably, the support is of a hollow structure, a flange is fixedly connected to the side wall of the support, the support is fixedly connected with one end of the main shaft through the flange, and a round hole is formed in the bending portion and communicates with the connecting pipe.

[0013] Preferably, a partition plate is fixedly connected in the shell, a transverse plate is fixedly connected to one side of the partition plate, and the positioning assembly is fixed on the transverse plate.

[0014] Preferably, an opening is arranged on one side of the shell, a positioning frame is fixedly connected to the opening, a sealing plate is fixedly connected to one side of the positioning frame, an opening is arranged on one side of the sealing plate, and the opening is matched with the positioning assembly.

[0015] Preferably, a protective cover is fixedly connected to the lower end of the aluminum plate through bolts, two rubber sheets are fixedly connected in the protective cover, the protective cover is clamped on the two mounting plates, and the rubber sheets are in contact with the mounting plates.

[0016] Preferably, the upper end of the aluminum plate is fixedly connected with an arc-shaped cover, and the lower end of the arc-shaped cover is provided with two connecting portions, and two through holes for connecting with the cable way are formed in the two connecting portions.

[0017] Preferably, the fixing assembly comprises a fixing frame fixed at the edge of the aluminum plate through fixing bolts, one end of the fixing frame is provided with a fixing portion, two fixing blocks are arranged on the fixing portion, and an arc-shaped clamping portion is arranged at one end of each of the two fixing blocks; a threaded hole is formed in the side wall of one of the fixing blocks; and assembly holes are formed in the other fixing block and the fixing portion, and fixing bolts are arranged in the assembly holes and connected with the threaded hole.

[0018] Compared with the prior art, the radar wave speed measuring device with adjustable angle has the following beneficial effects:

[0019] 1. The radar wave speed measuring device with adjustable angle can timely adjust the pitch angle of the radar wave current speed meter by using the pitch adjusting motor, so that the radar wave current speed meter can emit a beam to the vertical line of the position of the lead fish under the assistance of the positioning assembly, so that the water flow speed of the deep water position can be measured by using the lead fish in the river.

[0020] 2. The water flow speed of the water surface at the position of the lead fish is measured by using the radar wave current speed meter, and the water flow data of the deep water measured by using the traditional lead fish and the water flow data of the river surface measured by using the radar wave current speed meter measuring device are collected respectively, so that the measuring device is not blocked by foreign matters and is not shielded by the water flow impact after the lead fish enters the water, and the water flow speed cannot be accurately monitored.

[0021] The parts not involved in the device are the same as or can be realized by the prior art, the utility model, the horizontal angle and the pitch angle of the radar wave current speed meter can be adjusted in real time according to the change of the water level, so that the radar beam can be on the same vertical line with the lead fish monitoring point, the water flow speeds of different water depths are compared, and the monitoring precision of the water flow speed is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 The utility model provides a kind of radar wave speed measuring device with adjustable angle structure schematic view;

[0023] Figure 2 The utility model provides a kind of radar wave speed measuring device with adjustable angle sectional view;

[0024] Figure 3 The utility model provides a kind of radar wave speed measuring device with adjustable angle structure schematic view of arc-shaped cover;

[0025] Figure 4A structure schematic view of the horizontal adjusting mechanism and the support in the radar wave speed measuring device with adjustable angle is provided in the utility model.

[0026] Figure 5 An internal structure schematic view of the box body in the radar wave speed measuring device with adjustable angle is provided in the utility model.

[0027] Figure 6 A structure schematic view of the box body in the radar wave speed measuring device with adjustable angle is provided in the utility model.

[0028] Figure 7 A structure schematic view of the aluminum plate and the mounting plate in the radar wave speed measuring device with adjustable angle is provided in the utility model.

[0029] Figure 8 A structure schematic view of the fixing assembly in the radar wave speed measuring device with adjustable angle is provided in the utility model.

[0030] Figure 9 An effect picture of the radar wave speed measuring device with adjustable angle cooperating with the traditional lead fish flow cable channel is provided in the utility model.

[0031] Figure 10 An effect picture of the radar wave flow meter beam and the lead fish vertical line in the radar wave speed measuring device with adjustable angle is provided in the utility model.

[0032] In the drawing: 1, protective cover; 2, mounting plate; 3, support; 4, shell; 5, sealing plate; 6, positioning assembly; 7, arc cover; 8, aluminum plate; 9, horizontal adjusting motor; 10, main shaft; 11, rubber sheet; 12, through hole; 13, second gear; 14, first gear; 15, rubber sleeve; 16, flange; 17, support shaft; 18, connecting pipe; 19, pitch adjusting motor; 20, positioning frame; 21, partition plate; 22, radar wave flow meter; 23, fixing block; 24, fixing frame. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0034] In the description of the utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0035] Embodiment 1:

[0036] With reference to Figures 1-8 An angle-adjustable radar wave speed measuring device comprises a radar wave current meter 22, a positioning assembly 6 and an aluminum plate 8, the positioning assembly 6 adopts a laser positioner and a camera, wherein the laser positioner can directly position the vertical line of the position of the lead fish in the river channel by using a laser beam, the camera is used for positioning the vertical line of the position of the lead fish by directly scanning the position of the lead fish and the position of the cable of the lead fish, and the camera is used for positioning the vertical line of the position of the lead fish by processing the collected image information by using an AI technology, the technology has been widely used in life, and thus the existing technology can be adopted, and excessive details are not described herein again, the lower end of the aluminum plate 8 is fixedly connected with two mounting plates 2, the two mounting plates 2 are rotationally connected with a main shaft 10, one end of the main shaft 10 is fixedly connected with a support 3, and a horizontal adjusting mechanism for adjusting the horizontal angle of the support 3 is installed on the main shaft 10;

[0037] As shown in Figure 9 , the horizontal adjusting mechanism is mainly used for responding to the influence of the arc of the bearing cable of the cableway on the river channel on the horizontal angle of the radar wave current meter 22, and the horizontal adjusting mechanism can also respond to the influence of the shaking of the cableway on the beam emission angle of the radar wave current meter 22 in special weather;

[0038] One end of the support 3 is rotationally connected with a shell 4, the shell 4 is internally installed with a pitch adjusting motor 19, and the radar wave current meter 22 and the positioning assembly 6 are installed in the shell 4;

[0039] As shown in Figure 10 , on the cableway, the radar wave current meter 22 is not only affected in the horizontal direction, but also deviates from the predetermined measurement position due to the impact of the river water flow on the lead fish when the lead fish enters the water, so the pitch adjusting motor 19 can timely adjust the pitch angle of the radar wave current meter 22, so that the radar wave current meter 22 can emit the beam to the vertical line of the position of the lead fish under the assistance of the positioning assembly 6, so that the flow speed of the water in the river channel can be measured by using the lead fish to measure the deep water position, and the flow speed of the water at the surface of the position of the lead fish can be measured by using the radar wave current meter 22, and the flow data of the deep water measured by using the traditional lead fish and the flow data of the river surface measured by using the radar wave current meter 22 are collected respectively, so that the traditional measurement method can be avoided, in which the measurement equipment is jammed and blocked by foreign matters and is shielded due to the impact of the water flow after the lead fish enters the water, so that the flow speed cannot be accurately monitored;

[0040] By using the technical scheme, the flow speed of the water at the river surface on the vertical line of the lead fish can be collected, the collected data can be compared by a person or automatically compared, it can be judged whether the traditional equipment is blocked and shielded by foreign matters, the mean value of the deep water flow speed and the surface flow speed can be obtained, and the measured flow speed is more accurate.

[0041] Embodiment 2, on the basis of embodiment 1, in this embodiment, a preferred technical solution is proposed, which can be specifically referred to Figures 2-7 The horizontal adjusting mechanism is composed of the main shaft 10 and two supporting rods, the shaft wall of the main shaft 10 is fixedly connected with two rolling bearings, the side walls of the two mounting plates 2 are fixedly connected with the outer rings of the rolling bearings through round holes, one end of the main shaft 10 penetrates through the rolling bearings and is fixedly connected with the first gear 14, the first gear 14 is meshed with the second gear 13, one side of the mounting plate 2 is fixedly connected with the horizontal adjusting motor 9, the output end of the horizontal adjusting motor 9 penetrates through the side wall of the mounting plate 2 and is fixedly connected with the second gear 13 coaxially, the two supporting rods are fixed between the two mounting plates 2, the lower end of the aluminum plate 8 is fixedly connected with the protective cover 1 through bolts, the protective cover 1 is fixedly connected with two rubber sheets 11 inside, the protective cover 1 is clamped on the two mounting plates 2, and the rubber sheets 11 are in contact with the mounting plates 2.

[0042] Through the driving of the horizontal adjusting motor 9, the second gear 13 can drive the first gear 14 to rotate the main shaft 10, so that the horizontal angle of the support 3 can be adjusted, and the support 3 can be kept parallel to the water surface, the horizontal adjusting motor 9 is controlled by the controller, in addition, the protective cover 1 can be directly clamped on the two mounting plates 2, and when it is fixed below the aluminum plate 8, a closed space can be formed, power supply, controller, signal transmission module and the like can be assembled, and at the same time, the horizontal adjusting mechanism can be protected below the protective cover 1, so that the erosion of water vapor on the radar wave speed measuring device is reduced.

[0043] Embodiment 3, on the basis of embodiment 2, in this embodiment, a preferred technical solution is proposed, which can be specifically referred to Figure 4 The two ends of the support 3 are provided with bending parts, one of which is fixedly connected with the supporting shaft 17, and the other of which is fixedly connected with the connecting pipe 18, the opposite sides of the shell 4 are rotatably connected with the supporting shaft 17 and the connecting pipe 18 through the sealing bearings respectively, at this time, the supporting shaft 17 and the connecting pipe 18 are on the same axis, the pitch adjusting motor 19 is fixed in the shell 4 through the support, the output end of the pitch adjusting motor 19 is fixedly connected with one end of the supporting shaft 17 coaxially through the rigid coupling, after the output end of the pitch adjusting motor 19 is connected with the fixed supporting shaft 17 through the rigid coupling, the output shaft of the pitch adjusting motor 19 is limited, at this time, the shell of the pitch adjusting motor 19 bears the torque to drive the shell 4 to swing, and the axis of the main shaft 10 is perpendicular to the axis of the support 3;

[0044] In the embodiment, the main shaft 10 is designed as a hollow structure, a threading hole is formed in the shaft wall of the main shaft 10, a rubber sleeve 15 is fixedly connected in the threading hole, the rubber sleeve 15 is located between the two mounting plates 2, the support 3 is designed as a hollow structure, a flange 16 is fixedly connected to the side wall of the support 3, the support 3 is fixedly connected to one end of the main shaft 10 through the flange 16, a circular hole is formed in the bending part, the circular hole is communicated with the connecting pipe 18, a partition plate 21 is fixedly connected in the shell 4, one side of the partition plate 21 is fixedly connected with a horizontal plate, the positioning assembly 6 is fixed on the horizontal plate, an opening is arranged on one side of the shell 4, and a positioning frame 20 is fixedly connected to the opening, one side of the positioning frame 20 is fixedly connected with a sealing plate 5, and an opening is arranged on one side of the sealing plate 5 and matched with the positioning assembly 6.

[0045] As shown in Figure 4 , the main shaft 10 and the support 3 are both made of hollow circular pipes, and the main shaft 10 and the support 13 are connected through the flange 16, so that the wiring of the velocity measuring device can be facilitated, and the wire harness can pass through the rubber sleeve 15, the main shaft 10, the support 3 and the connecting pipe 18 into the shell 4 in sequence, at this time, the wire harness for controlling the pitch adjusting motor 19, the positioning assembly 6 and the radar wave flow velocity meter 22 can all be in a closed space, so that the wire harness is prevented from accelerating aging.

[0046] In addition, the sealing plate 5 is made of PTFE (polytetrafluoroethylene) material, which has good wave permeability and almost no influence on the radar beam, and the opening on the sealing plate 5 is used to leak out the optical lens part of the positioning assembly 6, so that it can work normally.

[0047] In example 4, on the basis of example 1, a preferred technical scheme is proposed in the embodiment, which can be specifically referred to Figure 4 , the upper end of the aluminum plate 8 is fixedly connected with an arc-shaped cover 7, the lower end of the arc-shaped cover 7 is provided with two connecting parts, two through holes 12 connected with the cable way are formed in the two connecting parts, a plurality of fixing assemblies for connecting with the cable way are arranged on the aluminum plate 8, the fixing assembly comprises a fixing frame 24, the fixing frame 24 is fixed on the edge of the aluminum plate 8 through a fixing bolt, one end of the fixing frame 24 is provided with a fixing part, two fixing blocks 23 are arranged on the fixing part, one end of each of the two fixing blocks 23 is provided with an arc-shaped clamping part, a threaded hole is formed in the side wall of one of the two fixing blocks 23, and assembly holes are formed in the other fixing block 23 and the fixing part, and fixing bolts are arranged in the assembly holes and connected with the threaded holes.

[0048] The arc-shaped cover 7 and the aluminum plate 8 can form a space for installing electronic components of the velocity measuring device, the arc-shaped cover 7 can also be used for water guiding to timely drain rainwater, and the arc-shaped clamping parts of the fixing blocks 23 can be used for fixedly arranging a plurality of velocity measuring devices on the cable way at intervals, and the interval distance can be adjusted according to the width of the river channel or set according to the predetermined measurement position of the lead sinker.

[0049] In the technical solution, the pitch adjusting motor 19 and the horizontal adjusting motor 9 are both composed of a stepping motor and a speed reducer gearbox, and can be designed into an automatic adjusting mode. In order to enable the pitch adjusting motor 19 and the horizontal adjusting motor 9 to receive the angle that needs to be adjusted, the existing technology needs to be used for implementation. For example, an electronic gyroscope senses the real-time posture of the cableway monitoring device at each angle when it is blown by the wind, and the control board uses the built-in decoding circuit and software algorithm to analyze these signals and identify the specific instruction content, such as the angle adjustment of a certain axis, the change of the movement speed, and other specific actions. According to the motor specific action parameters (such as rotation speed, rotation direction, rotation time, etc.) obtained in the instruction processing stage, the control board generates corresponding motor driving signals through the related driving circuit. These signals are generally in the form of pulse width modulation (PWM) signals and other forms. Different signal characteristics can accurately control the operation state of the motor. After each execution motor receives the corresponding driving signal, it rotates according to the requirements, thereby realizing the angle adjustment, posture change, and other operations of the main shaft 10 and the shell 4 in different axial directions, so that the radar wave flow velocity meter 22 can adjust the posture in real time and maintain the levelness with the water surface and the beam angle and the monitoring position of the emission.

[0050] Meanwhile, a manual adjusting function is also designed. The user operates the corresponding virtual joystick, direction key, or inputs specific angle value on the interface through the remote control terminal (such as the APP installed on the mobile phone or the corresponding control software on the computer), and sends the adjusting instruction to the remote angle adjusting system of the speed measuring device. These instructions are packaged and transmitted through the communication module (such as Wi-Fi network) according to a specific communication protocol (such as TCP / IP protocol, etc.), and finally reach the control unit. After receiving the transmitted instruction, the control unit analyzes the instruction and judges whether it requires horizontal rotation, vertical rotation, or specific angle composite rotation, and generates corresponding control electrical signals according to the specific parameters (such as rotation angle size, rotation direction, rotation speed, etc.) in the instruction. For example, if the instruction is to require the radar wave flow velocity meter 22 to rotate 3 degrees to the right horizontally, the control unit will calculate the number of pulse signals (for the case of a stepping motor) or voltage and current changes (for the case of a direct current motor) that need to be sent to the horizontal motor according to the preset motor control logic, so as to drive the motor to rotate as required. After receiving the driving signal from the control unit, the motor starts to operate and drives the radar wave flow velocity meter 22 to rotate in the required direction and angle through the transmission mechanism.

[0051] In this way, the laser positioner or the camera can assist the user to find the position of the lead fish when it enters the water, and realize the manual calibration of the radar wave flow velocity meter 22.

[0052] For example, Figure 9 and Figure 10As shown, the pincer fish cable is arranged on the upstream of the river channel, and a plurality of lead fish measuring positions can be preset on the pincer fish cable, at this time, a corresponding number of lead fish plumb lines can be formed, a double cable is arranged downstream of the lead fish cable for fixing a plurality of speed measuring devices, at this time, the positions of the plurality of speed measuring devices correspond to the lead fish plumb lines upstream, in work, when the lead fish contacts the water surface, it is the speed measuring point of the radar wave current meter 22, at this time, the speed measuring point can be accurately found and is not affected by the water level change, after artificial calibration, the radar wave current meter 22 can start monitoring the flow rate of the water surface, and the lead fish continues to sink into the water to monitor the flow in the deep part of the river channel, so that the array type speed measuring device can be established on the river channel, and the flow rate in the river channel is monitored at multiple points, and the accuracy of the flow rate is improved.

[0053] The above is only a preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An angle adjustable radar wave speed measuring device comprising a radar wave current meter (22), a positioning assembly (6) and an aluminum plate (8), characterized in that, The lower end of the aluminum plate (8) is fixedly connected with two mounting plates (2), the two mounting plates (2) are rotationally connected with a main shaft (10) in common, one end of the main shaft (10) is fixedly connected with a support (3), a horizontal adjusting mechanism for adjusting the horizontal angle of the support (3) is mounted on the main shaft (10). One end of the support (3) is rotationally connected with a shell (4), the shell (4) is internally mounted with a pitch adjusting motor (19), the radar wave flow velocity meter (22) and the positioning assembly (6) are mounted in the shell (4). A plurality of fixing assemblies for connecting with cable ways are arranged on the aluminum plate (8).

2. An angle adjustable radar wave speed measuring device according to claim 1, characterized in that, The horizontal adjusting mechanism is composed of the main shaft (10) and two supporting rods, two rolling bearings are fixedly connected on the shaft wall of the main shaft (10), the side walls of the two mounting plates (2) are fixedly connected with the outer rings of the rolling bearings through circular holes, one end of the main shaft (10) penetrates through the rolling bearings and is fixedly connected with a first gear (14), the first gear (14) is engaged with a second gear (13), one side of the mounting plate (2) is fixedly connected with a horizontal adjusting motor (9), the output end of the horizontal adjusting motor (9) penetrates through the side wall of the mounting plate (2) and is fixedly connected with the second gear (13) in coaxial center, and the two supporting rods are fixed between the two mounting plates (2).

3. An angle adjustable radar wave speed measuring device according to claim 1, characterized in that, The main shaft (10) is of a hollow structure, a threading hole is formed in the shaft wall of the main shaft (10), and a rubber sleeve (15) is fixedly connected in the threading hole and located between the two mounting plates (2).

4. An angle adjustable radar wave speed measuring device according to claim 1, characterized in that, The two ends of the support (3) are provided with bent portions, one of the bent portions is fixedly connected with a supporting shaft (17), the other bent portion is fixedly connected with a connecting pipe (18), the opposite sides of the shell (4) are rotationally connected with the supporting shaft (17) and the connecting pipe (18) through sealing bearings, the pitch adjusting motor (19) is fixed in the shell (4) through a support, the output end of the pitch adjusting motor (19) is fixedly connected with one end of the supporting shaft (17) in coaxial center through a rigid coupling, and the axis of the main shaft (10) is perpendicular to the axis of the support (3).

5. An angle adjustable radar wave speed measuring device according to claim 4, characterized in that, The support (3) is of a hollow structure, a flange (16) is fixedly connected on the side wall of the support (3), and the support (3) is fixedly connected with one end of the main shaft (10) through the flange (16), a circular hole is formed in the bent portion and communicates with the connecting pipe (18).

6. An angle adjustable radar wave speed measuring device according to claim 1, characterized in that, A partition plate (21) is fixedly connected in the shell (4), one side of the partition plate (21) is fixedly connected with a transverse plate, and the positioning assembly (6) is fixed on the transverse plate.

7. An angle adjustable radar wave speed measuring device according to claim 1, wherein An opening is formed in one side of the shell (4), a positioning frame (20) is fixedly connected at the opening, one side of the positioning frame (20) is fixedly connected with a sealing plate (5), one side of the sealing plate (5) is provided with an opening, and the opening is matched with the positioning assembly (6).

8. An angle adjustable radar wave speed measuring device according to claim 1, characterized in that, The lower end of the aluminum plate (8) is fixedly connected with a protective cover (1), two rubber sheets (11) are fixedly connected in the protective cover (1), the protective cover (1) is clamped on two mounting plates (2), and the rubber sheets (11) are in contact with the mounting plates (2).

9. An angle adjustable radar wave speed measuring device according to claim 1, wherein The upper end of the aluminum plate (8) is fixedly connected with an arc-shaped cover (7), the lower end of the arc-shaped cover (7) is provided with two connecting portions, and the two connecting portions are both provided with through holes (12) connected with the cable way.

10. An angle adjustable radar wave speed measuring device according to claim 1, characterized in that, The fixing assembly comprises a fixing frame (24), the fixing frame (24) is fixed at the edge of the aluminum plate (8) through a fixing bolt, one end of the fixing frame (24) is provided with a fixing portion, two fixing blocks (23) are arranged on the fixing portion, one end of each of the two fixing blocks (23) is provided with an arc-shaped clamping portion, a threaded hole is formed in the side wall of one of the fixing blocks (23), assembly holes are formed in the other fixing block (23) and the fixing portion, and fixing bolts are arranged in the assembly holes and connected with the threaded hole.

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