Radar flow velocity meter
By using balance components and Hall sensors in the radar flowmeter to detect the deflection angle, automatically adjust the counterweight disc speed, and combining balls to reduce friction, the swaying problem of the radar flowmeter when the wind is high, achieving higher stability and energy efficiency.
Patent Information
- Application Number
- CN202420753336.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-12
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-12
AI Technical Summary
Existing radar flowmeters are prone to swing or rotate along the center of the steel cable when the wind is high, resulting in instability, and the strokes of the electric push rod and counterweight ball are short, which cannot effectively offset the deviation caused by wind.
Using balanced components, including a second motor to drive the counterweight disc to rotate at high speed to increase angular momentum, combined with Hall sensor and magnet to detect deflection angle, automatically adjust the counterweight disc speed to stabilize the housing, and reduce the movable frame and fixed frame through balls. Friction, reduce wind resistance and rotational resistance.
It effectively improves the stability of the radar flowmeter, offsets the deviation caused by wind, reduces unnecessary energy consumption, and keeps the instrument stable by automatically adjusting the power to avoid deflection caused by wind blowing.
Smart Images
Figure CN222189313U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of radar velocity meters, in particular to a radar velocity meter. Background Art
[0002] The radar flow meter is an integrated flow monitoring device that can continuously measure flow velocity, water level and flow without contact. It is mainly used for non-contact flow measurement in pumping stations, rivers, irrigation canals, underground drainage networks, flood prevention and early warning and other occasions. It uses radar planar microwave technology to measure the flow velocity and water level of water bodies in a non-contact manner and is not affected by factors such as temperature, sediment, river pollutants, and floating objects on the water surface.
[0003] The automatic balancing device of the radar velocity meter with application number 202121797658.1 comprises an iron rope, a moving component is movably connected to the iron rope, a radar velocity meter body is fixedly connected to the lower side of the moving component, and an adjustment component is fixedly installed on the lower surface of the radar velocity meter body. The utility model has a moving component movably connected to the iron rope, so that the utility model can move stably on the iron rope, the transmission pulley is driven to rotate by the first motor, and the position limiting tube can limit the position of the utility model along the extension direction of the iron rope to stabilize the utility model; the utility model pushes the counterweight ball to move by the electric push rod, and when the utility model encounters strong winds, the center of gravity can be changed by controlling the electric push rod to achieve a stable effect.
[0004] However, the stroke of the electric push rod and the counterweight ball in this technical solution is relatively short, and the center of gravity is only slightly shifted when adjusting the center of gravity. At the same time, the shape of the radar flow meter body in this technical solution will produce greater wind resistance, which increases the effect of wind on the device and further increases instability, resulting in the technical solution still being easy to swing or even rotate along the center of the cable when the wind is strong. Utility Model Content
[0005] Based on this, the purpose of the utility model is to provide a radar flow meter to solve the technical problems mentioned in the above background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a radar flow meter, comprising a first pillar, a second pillar and a shell, a balancing assembly is arranged inside the shell, and the balancing assembly includes a second motor, the output end of the second motor is connected to a counterweight plate, and the bottom of the counterweight plate is connected to a movable frame, a fixed frame is connected to the lower part of the shell, and a ball is arranged between the fixed frame and the movable frame, a shield is connected to one side of the shell, and a Hall sensor is installed inside the shield, and a magnet is connected inside the shield.
[0007] By adopting the above technical solution, the second motor drives the counterweight plate to rotate at high speed after starting. After the counterweight plate rotates at high speed, the angular momentum is used to improve the stability of the shell, offset the offset of the shell caused by wind blowing, and at the same time, the friction between the movable frame and the fixed frame is reduced by the ball bearing to avoid excessive rotation resistance of the counterweight plate. Since the shell is in a disc shape, the wind resistance is reduced and the stability of the shell is also improved. When the wind force increases and causes the shell to deflect, the Hall sensor deflects with the shell, and the magnet points directly downward. At this time, the Hall sensor and the magnet move relative to each other, and the Hall sensor and the magnet cooperate to detect the deflection angle of the shell. At this time, the Hall sensor sends an electrical signal to the outside, so that the output end of the second motor accelerates the rotation speed of the counterweight plate to increase the angular momentum, thereby increasing the stability of the shell and restoring the shell to a horizontal state.
[0008] Furthermore, the cross-sections of the movable frame and the fixed frame are both U-shaped, and the movable frame is rotatably connected to the fixed frame.
[0009] By adopting the above technical solution, the second motor drives the counterweight plate to rotate at high speed after starting, and at the same time reduces the friction between the movable frame and the fixed frame through the ball bearings, thereby avoiding excessive rotation resistance of the counterweight plate.
[0010] Furthermore, a plurality of balls are provided, and the plurality of balls are distributed in a ring array.
[0011] By adopting the above technical solution, the sliding friction is converted into rolling friction through the balls, thereby effectively reducing the friction between the movable frame and the fixed frame to avoid excessive rotation resistance of the counterweight plate.
[0012] Furthermore, the magnet is rotatably connected to the shield.
[0013] By adopting the above technical solution, when the wind is strong and causes the shell to deflect, the Hall sensor deflects along with the shell, and the magnet is affected by gravity and points directly downward. At this time, the Hall sensor and the magnet move relative to each other, and the magnetic force between the Hall sensor and the magnet is used to detect the deflection angle of the shell.
[0014] Furthermore, photovoltaic panels are installed on the top of the first pillar and the second pillar, and the second pillar is located on one side of the first pillar. A steel cable is connected between the first pillar and the second pillar.
[0015] By adopting the above technical solution, radar waves are emitted to the water body through the radar flow meter body, so as to measure the water level and flow rate of the water body. At the same time, the photovoltaic panel utilizes the photoelectric effect to convert light energy into electrical energy, thereby reducing the energy consumption of the radar flow meter.
[0016] Furthermore, a cable clamp is connected between the steel cable and the shell, a radar velocity meter body is installed at the bottom of the shell, a first motor is installed at the top of the shell, and a roller is connected to the output end of the first motor, and a gear is sleeved on the outside of the roller.
[0017] By adopting the above technical solution, after the first motor is started, the output end drives a roller to rotate, and the two gears are engaged to cause the two rollers to rotate towards each other. At this time, the friction between the roller and the steel cable causes the shell to drive the radar current meter body to move above the water body, so as to measure the water level and flow rate in different areas. At the same time, the shell can be hung on the steel cable without falling through the setting of the cable clamp.
[0018] Furthermore, an adjustment component is provided on one side of the second pillar, and the adjustment component includes a bracket, a proximity switch is installed at the lower part of the bracket, a guide wheel is connected to the upper part of one side of the second pillar, a hook is connected to one end of the steel cable, and a counterweight block is connected to the bottom of the hook through a hanging ring.
[0019] By adopting the above technical solution, while the radar current meter body is measuring the water body, a pulling force is applied to one end of the steel cable through the counterweight. When the steel cable is loose, the counterweight falls due to gravity, thereby re-tightening the steel cable to prevent the radar current meter body from sagging due to the loose steel cable, and to prevent the loose steel cable from being blown by the wind and swaying above the water body, increasing the deflection of the shell. When the counterweight falls and contacts the proximity switch, the proximity switch sends an electrical signal to the distribution control cabinet, and the distribution control cabinet then sends a message to the remote staff to remind them that the steel cable is stretched too large and is easy to break, or the steel cable has broken, and the aged and damaged steel cable needs to be replaced. After the steel cable is replaced, one end of the new steel cable is connected to the counterweight through a hanging ring and a hook.
[0020] Furthermore, the counterweight block is slidably connected to the bracket, and the counterweight block abuts against the proximity switch.
[0021] By adopting the above technical solution, a tensile force is applied to one end of the steel cable through the counterweight block. When the steel cable is slack, the counterweight block falls due to gravity, thereby re-tightening the steel cable, preventing the radar current meter body from sagging due to the slack steel cable, and preventing the slack steel cable from being blown by the wind and swaying above the water body to increase the deflection of the shell.
[0022] Furthermore, the counterweight block is detachably connected to the steel cable via a hanging ring and a hook.
[0023] By adopting the above technical solution, after the steel cable is replaced, one end of the new steel cable is connected to the counterweight block through the hanging ring and the hook. When the steel cable is slack, the counterweight block falls under the influence of gravity, thereby tightening the steel cable again.
[0024] Furthermore, a power distribution control cabinet is installed below the outer surface of the second pillar, and the photovoltaic panel, the radar flow meter body, the second motor, the Hall sensor, the proximity switch and the first motor are all electrically connected to the power distribution control cabinet.
[0025] By adopting the above technical solution, the staff turns on or off the photovoltaic panel, the radar flow meter body, the second motor, the Hall sensor, the proximity switch and the first motor through the power distribution control cabinet.
[0026] In summary, the utility model mainly has the following beneficial effects:
[0027] The utility model arranges a balancing component, and after the second motor is started, it drives the counterweight plate to rotate at high speed. After the counterweight plate rotates at high speed, the angular momentum is used to improve the stability of the shell, and the offset of the shell caused by the wind is offset. At the same time, the friction between the movable frame and the fixed frame is reduced by the ball bearing, so as to avoid excessive rotation resistance of the counterweight plate. Since the shell is in a disc shape, the wind resistance is reduced, and the stability of the shell is also improved. When the wind force increases and causes the shell to deflect, the Hall sensor deflects with the shell, and the magnet points directly downward. At this time, there is relative movement between the Hall sensor and the magnet, and the deflection angle of the shell is detected by the cooperation of the Hall sensor and the magnet. At this time, the Hall sensor sends out an electrical signal to the outside, so that the output end of the second motor accelerates the rotation speed of the counterweight plate to increase the angular momentum, thereby increasing the stability of the shell and restoring the shell to a horizontal state. Good stability effectively avoids the deflection of the flow meter caused by wind, and at the same time, the power can be automatically adjusted according to the wind force to reduce unnecessary energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a schematic diagram of the structure of the utility model;
[0029] Figure 2 This is a schematic diagram of the housing structure of the utility model;
[0030] Figure 3 It is a schematic diagram of the cross-sectional structure of the shell of the utility model;
[0031] Figure 4 It is a schematic diagram of the side section structure of the protective cover of the utility model;
[0032] Figure 5 It is a schematic diagram of the cross-sectional structure of the second pillar of the utility model.
[0033] In the figure: 1. first pillar; 2. second pillar; 3. photovoltaic panel; 4. power distribution control cabinet; 5. steel cable; 6. shell; 7. radar flow meter body; 8. balance assembly; 801. shield; 802. second motor; 803. counterweight plate; 804. fixed frame; 805. movable frame; 806. ball bearing; 807. Hall sensor; 808. magnet; 9. adjustment assembly; 901. bracket; 902. proximity switch; 903. counterweight block; 904. hanging ring; 905. hook; 906. guide wheel; 10. first motor; 11. roller; 12. gear; 13. cable clamp. DETAILED DESCRIPTION
[0034] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.
[0035] The following describes an embodiment of the utility model based on its overall structure. Embodiment 1:
[0036] A radar velocity meter, such as Figure 2-Figure 4 As shown, it comprises a first support 1, a second support 2 and a shell 6. The shell 6 is disc-shaped, and a balancing component 8 is arranged inside the shell 6.
[0037] Specifically, the balancing assembly 8 includes a second motor 802 installed on the upper part of the shell 6, the output end of the second motor 802 is connected to a counterweight plate 803, and the bottom of the counterweight plate 803 is connected to a movable frame 805. After the second motor 802 is started, the counterweight plate 803 is driven to rotate at a high speed. After the counterweight plate 803 rotates at a high speed, the angular momentum is used to improve the stability of the shell 6 and offset the offset caused by the wind blowing the shell 6; a fixed frame 804 is connected to the lower part of the shell 6, and the cross-sections of the movable frame 805 and the fixed frame 804 are both "U"-shaped, and a plurality of balls 806 are arranged between the fixed frame 804 and the movable frame 805, and the plurality of balls 806 are distributed in a ring array. The fixed frame 804 is rotatably connected, and the friction between the movable frame 805 and the fixed frame 804 is reduced by the ball 806 to avoid excessive rotation resistance of the counterweight plate 803; a shield 801 is connected to one side of the shell 6, and a Hall sensor 807 is installed inside the shield 801. A magnet 808 is connected inside the shield 801, and the magnet 808 is rotatably connected to the shield 801. When the wind force is strong and causes the shell 6 to deflect, the Hall sensor 807 deflects with the shell 6, and the magnet 808 is affected by gravity and points directly downward. At this time, the Hall sensor 807 and the magnet 808 move relative to each other, and the magnetic force between the Hall sensor 807 and the magnet 808 is used to detect the deflection angle of the shell 6.
[0038] See also Figure 1 , Figure 2 , Figure 3 and Figure 5 In the above embodiment, photovoltaic panels 3 are installed on the top of the first pillar 1 and the second pillar 2, and photoelectric effect is used to convert light energy into electrical energy, thereby reducing the energy consumption of the radar current meter; the second pillar 2 is located on one side of the first pillar 1, and a steel cable 5 is connected between the first pillar 1 and the second pillar 2, and a cable clamp 13 is connected between the steel cable 5 and the shell 6. The shell 6 can be hung on the steel cable 5 without falling through the setting of the cable clamp 13; the radar current meter body 7 is installed at the bottom of the shell 6 to measure the water level and flow rate of the water body; the first motor 10 is installed on the top of the shell 6, and the output end of the first motor 10 is connected to a roller 11, and the roller 11 is sleeved with a gear 12 on the outside, and the roller 11 and the gear There are two wheels 12. After the first motor 10 is started, the output end drives a roller 11 to rotate, and the two gears 12 are engaged to make the two rollers 11 rotate towards each other. At this time, the friction between the roller 11 and the steel cable 5 prompts the shell 6 to drive the radar current meter body 7 to move above the water body; a distribution control cabinet 4 is installed under the outer surface of the second pillar 2, and the photovoltaic panel 3, the radar current meter body 7, the second motor 802, the Hall sensor 807 and the first motor 10 are all electrically connected to the distribution control cabinet 4. The staff turns on or off the photovoltaic panel 3, the radar current meter body 7, the second motor 802, the Hall sensor 807 and the first motor 10 through the distribution control cabinet 4. Embodiment 2:
[0039] On the basis of the above-mentioned embodiment 1, although the balancing component 8 is provided to achieve good stability and effectively prevent the velocity meter from being deflected by wind, and the power can be automatically adjusted according to the wind force to reduce unnecessary energy consumption; however, the steel cable 5 is prone to loosening after being used for too long. After the steel cable 5 is loosened, it swings under the influence of wind force, causing the swing amplitude of the shell 6 to increase; now, by providing the adjusting component 9, it is possible to prevent the steel cable 5 from loosening and causing the radar velocity meter body 7 to sag.
[0040] See also Figure 1 and Figure 5 In the above embodiment, an adjustment component 9 is provided on one side of the second pillar 2.
[0041] Specifically, the adjustment component 9 includes a bracket 901 connected to one side of the second pillar 2, a proximity switch 902 is installed at the lower part of the bracket 901, and the proximity switch 902 is electrically connected to the power distribution control cabinet 4. When the counterweight block 903 falls and contacts the proximity switch 902, the proximity switch 902 sends an electrical signal to the power distribution control cabinet 4, and the power distribution control cabinet 4 then sends information to the remote staff to remind that the steel cable 5 is easily broken due to excessive stretching, or that the steel cable 5 has broken; a guide wheel 906 is connected to the upper part of one side of the second pillar 2, and one end of the steel cable 5 is connected to a hanging Hook 905, the bottom of the hook 905 is connected to a counterweight 903 through a hanging ring 904, the counterweight 903 is detachably connected to the steel cable 5 through the hanging ring 904 and the hook 905, and after the steel cable 5 is replaced, one end of the new steel cable 5 is connected to the counterweight 903 through the hanging ring 904 and the hook 905; the counterweight 903 is slidably connected to the bracket 901, and the counterweight 903 is in contact with the proximity switch 902. When the steel cable 5 is slack, the counterweight 903 falls due to the influence of gravity, thereby re-tightening the steel cable 5 to prevent the radar velocity meter body 7 from sagging due to the slack of the steel cable 5.
[0042] The implementation principle of the utility model is as follows: first, the staff turns on the radar velocity meter body 7, the Hall sensor 807 and the first motor 10 through the power distribution control cabinet 4, and transmits radar waves to the water body through the radar velocity meter body 7, so as to measure the water level and flow rate of the water body, and at the same time, the photovoltaic panel 3 converts light energy into electrical energy by using the photoelectric effect, so as to reduce the energy consumption of the radar velocity meter;
[0043] After the first motor 10 is started, the output end drives a roller 11 to rotate, and the two rollers 11 rotate towards each other through the meshing of two gears 12. At this time, the friction between the roller 11 and the steel cable 5 causes the housing 6 to drive the radar current meter body 7 to move above the water body, so as to measure the water level and flow rate in different areas. At the same time, the housing 6 can be hung on the steel cable 5 without falling through the setting of the cable clamp 13;
[0044] The deflection angle of the shell 6 is measured by the Hall sensor 807 and the magnet 808. When the outside is windy, the shell 6 is in a disc shape to reduce wind resistance and also improve the stability of the shell 6. When the wind is strong and causes the shell 6 to deflect, the Hall sensor 807 deflects along with the shell 6, and the magnet 808 points directly downward under the influence of gravity. At this time, the Hall sensor 807 and the magnet 808 move relative to each other, and the magnetic force between the Hall sensor 807 and the magnet 808 is used to detect the deflection angle of the shell 6. After the deflection, the Hall sensor 807 sends an electrical signal to the power distribution control cabinet 4, so that the power distribution control cabinet 4 turns on the second motor 802 or increases the power of the second motor 802.
[0045] After the second motor 802 is started, it drives the counterweight plate 803 to rotate at high speed. After the counterweight plate 803 rotates at high speed, it uses angular momentum to improve the stability of the shell 6, offsets the offset caused by the wind blowing the shell 6, and at the same time reduces the friction between the movable frame 805 and the fixed frame 804 through the ball 806, so as to avoid excessive rotation resistance of the counterweight plate 803. When the second motor 802 drives the counterweight plate 803 to rotate and balance the shell 6 by angular momentum, if the shell 6 is deflected by the strong wind, the power of the second motor 802 is increased, and the output end accelerates the rotation speed of the counterweight plate 803 to increase the angular momentum, thereby increasing the stability of the shell 6 and restoring the shell 6 to the level. When the shell 6 is balanced, the power of the second motor 802 is reduced to reduce the rotation speed of the counterweight plate 803. At this point, the power of the second motor 802 is automatically adjusted back and forth until the wind stops outside, and the second motor 802 is automatically turned off to reduce energy consumption.
[0046] While the radar current meter body 7 is measuring the water body, a pulling force is applied to one end of the steel cable 5 through the counterweight 903. When the steel cable 5 is loose, the counterweight 903 falls due to gravity, thereby re-tightening the steel cable 5 to prevent the radar current meter body 7 from sagging due to the loosening of the steel cable 5, and to prevent the loose steel cable 5 from being blown by the wind and swaying above the water body to increase the deflection of the shell 6. When the counterweight 903 falls and contacts the proximity switch 902, the proximity switch 902 sends an electrical signal to the distribution control cabinet 4, and the distribution control cabinet 4 sends a message to the remote staff to remind them that the steel cable 5 is stretched too large and is easy to break, or the steel cable 5 has broken, and the aged and damaged steel cable 5 needs to be replaced. After replacing the steel cable 5, one end of the new steel cable 5 is connected to the counterweight 903 through the hanging ring 904 and the hook 905.
[0047] Although an embodiment of the utility model has been shown and described, this specific embodiment is only an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contribution as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.
Claims
1. A radar current meter, comprising a first support (1), a second support (2) and a housing (6), characterized in that: A balancing component (8) is arranged inside the shell (6), and the balancing component (8) includes a second motor (802), the output end of the second motor (802) is connected to a counterweight plate (803), and the bottom of the counterweight plate (803) is connected to a movable frame (805), a fixed frame (804) is connected to the bottom of the shell (6), and a ball (806) is arranged between the fixed frame (804) and the movable frame (805), a protective cover (801) is connected to one side of the shell (6), and a Hall sensor (807) is installed inside the protective cover (801), and a magnet (808) is connected to the inside of the protective cover (801).
2. The radar current meter according to claim 1, characterized in that: The cross-sections of the movable frame (805) and the fixed frame (804) are both U-shaped, and the movable frame (805) is rotatably connected to the fixed frame (804).
3. The radar current meter according to claim 1, characterized in that: A plurality of the balls (806) are provided, and the plurality of balls (806) are distributed in a ring array.
4. The radar current meter according to claim 1, characterized in that: The magnet (808) is rotatably connected to the shield (801).
5. The radar current meter according to claim 1, characterized in that: Photovoltaic panels (3) are installed on the top of the first pillar (1) and the second pillar (2), and the second pillar (2) is located on one side of the first pillar (1). A steel cable (5) is connected between the first pillar (1) and the second pillar (2).
6. The radar current meter according to claim 5, characterized in that: A cable clamp (13) is connected between the steel cable (5) and the housing (6); a radar velocity meter body (7) is mounted on the bottom of the housing (6); a first motor (10) is mounted on the top of the housing (6); and a roller (11) is connected to the output end of the first motor (10); a gear (12) is sleeved on the outside of the roller (11).
7. The radar current meter according to claim 5, characterized in that: An adjustment component (9) is provided on one side of the second pillar (2), and the adjustment component (9) comprises a bracket (901), a proximity switch (902) is installed at the lower part of the bracket (901), a guide wheel (906) is connected to the upper part of one side of the second pillar (2), a hook (905) is connected to one end of the steel cable (5), and a counterweight (903) is connected to the bottom of the hook (905) via a hanging ring (904).
8. The radar current meter according to claim 7, characterized in that: The counterweight block (903) is slidably connected to the bracket (901), and the counterweight block (903) abuts against the proximity switch (902).
9. The radar current meter according to claim 8, characterized in that: The counterweight block (903) is detachably connected to the steel cable (5) via a hanging ring (904) and a hook (905).
10. The radar current meter according to claim 7, characterized in that: A power distribution control cabinet (4) is installed below the outer surface of the second support column (2), and the photovoltaic panel (3), the radar flow meter body (7), the second motor (802), the Hall sensor (807), the proximity switch (902) and the first motor (10) are all electrically connected to the power distribution control cabinet (4).