Portable radar water level gauge calibration device

Abstract

The utility model belongs to the technical field of water level detection, and provides a portable radar water level gauge calibration device which comprises a stand column, a cantilever is installed on the top of the stand column, and a radar water level gauge is installed at the end, away from the stand column, of the cantilever. The device further comprises a calibration frame body, a roller frame is installed on the calibration frame body, a winding roller is rotatably installed on the roller frame, a pull rope is wound around the winding roller, the pull rope is provided with scale marks, a guide roller is rotatably installed at the top of the calibration frame body, an indicator plate is arranged between the guide roller and the winding roller, and scale indicators are arranged on the indicator plate. A universal joint is detachably installed at the end, away from the stand column, of the cantilever, a roller is rotationally installed at the bottom end of the universal joint, and in the calibration state, one end of the pull rope is wound around the winding roller, and the other end of the pull rope winds around the roller and is connected with a detection disc. The radar water level gauge calibration device can effectively calibrate the radar water level gauge, is simple in structure and convenient to carry and use, enables calibration work of the radar water level gauge to be simple and convenient, and is high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of water level detection, in particular to a portable radar water level meter calibration device. Background Art

[0002] Radar water level meter, also called water level radar, is an electronic device that uses electromagnetic waves to detect targets. Its main function is to carry out water conservancy monitoring, sewage treatment and flood warning. Its main measurement principle is to transmit radar pulses from the radar water level sensor antenna, and the antenna receives the pulses reflected from the water surface and records the time T. Since the propagation speed C of electromagnetic waves is a constant, the distance D to the water surface can be obtained.

[0003] Radar water level meter is a high-precision water level measurement product with water surface fluctuation filtering processing, which can be deployed in reservoirs, rivers, lakes, wetlands and other areas. Radar water level meter emits electromagnetic waves to illuminate the target and receives its echo, thereby obtaining information such as the distance from the water level to the electromagnetic wave emission point, the distance change rate (radial velocity), azimuth, and height. Because of its advantages of convenience and high precision, and no contact with the water surface during measurement, it is not affected by factors such as sludge and aquatic plants, and the installation workload is relatively small, only a cantilever needs to be installed, so it is widely used in water level measurement.

[0004] At present, there is still no device specifically used to calibrate the radar water level meter, and it is impossible to calibrate the radar water level meter during use, and it is difficult to ensure the accuracy and consistency of the water level detection data of the radar water level meter. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the inventors conducted in-depth research and completed the present utility model after paying a lot of creative work.

[0006] Specifically, the technical problem to be solved by the utility model is to provide a portable radar water level gauge calibration device to solve the current technical problem that the radar water level gauge cannot be calibrated during use, and thus it is difficult to ensure the accuracy and consistency of the water level detection data of the radar water level gauge.

[0007] In order to solve the above technical problems, the technical solution of the utility model is:

[0008] A portable radar water level gauge calibration device comprises a column fixedly mounted on a water level detection platform, a cantilever is mounted on the top of the column, and a radar water level gauge is mounted on one end of the cantilever away from the column;

[0009] It also includes a calibration frame located on the water level detection platform, a roller frame is fixedly installed on the calibration frame, a winding roller is rotatably installed on the roller frame, a pull rope is wound around the winding roller, and a scale line is provided on the pull rope, a guide roller corresponding to the winding roller is rotatably installed on the top of the calibration frame, an indicator plate is provided between the guide roller and the winding roller, and a scale indicator is provided on the indicator plate;

[0010] A universal joint is detachably mounted on one end of the cantilever away from the column, and a roller is rotatably mounted on the bottom end of the universal joint. When in a calibration state, one end of the pull rope is wound around the winding roller, and the other end of the pull rope passes around the roller and is connected to a detection disk. The detection disk is located below the radar water level gauge, and the detection disk at least partially corresponds to the radar water level gauge.

[0011] As an improved technical solution, a vertical shaft is vertically fixedly installed on the top of the column, a shaft sleeve is rotatably sleeved outside the vertical shaft, one end of the cantilever close to the column is fixedly connected to the shaft sleeve, a motor mounting seat is also fixedly installed on the shaft sleeve, a reduction motor is fixedly installed on the motor mounting seat, a driving gear is installed on the output shaft of the reduction motor, and a driven gear meshing with the driving gear is fixedly installed on one end of the vertical shaft.

[0012] As an improved technical solution, two corresponding fixing seats are fixedly installed on the top of the column, the vertical shaft is fixedly installed between the two fixing seats, and the vertical shaft is arranged on the side of the column close to the water surface.

[0013] As an improved technical solution, a reinforcing truss is provided above or below the cantilever, and the reinforcing truss connects the cantilever and the shaft sleeve.

[0014] As an improved technical solution, a rotating shaft is rotatably mounted on the roller frame, the winding roller is fixedly mounted on the rotating shaft, and one end of the rotating shaft extends outside the roller frame and is mounted with a hand crank.

[0015] As an improved technical solution, a ratchet is also installed at one end of the rotating shaft, a claw is hingedly installed on the roller frame, and a spring connecting plate is fixedly installed on the roller frame. A tension spring is provided between one end of the claw and the spring connecting plate, and the other end of the claw is engaged with the ratchet teeth of the ratchet.

[0016] As an improved technical solution, the indicator plate is fixedly mounted on the top of the calibration frame, and the scale indicator is arranged on a side of the indicator plate close to the guide roller.

[0017] As an improved technical solution, Fomar wheels are installed at the bottom corners of the calibration frame.

[0018] As an improved technical solution, a mounting plate is fixedly installed at one end of the cantilever away from the column, a through hole is opened on the mounting plate, the top of the universal joint passes through the through hole, and an insertion hole is opened at the top of the universal joint, and a pin is inserted in the insertion hole of the universal joint.

[0019] As an improved technical solution, the detection disk is disc-shaped and has a water storage tank.

[0020] After adopting the above technical solution, the beneficial effects of the utility model are:

[0021] When using the portable radar water level gauge calibration device, the calibration frame is placed on the water level detection platform, the universal joint is installed at the end of the cantilever away from the column, and the pull rope is passed around the roller to connect with the detection disk; by rotating the winding roller, the detection disk is displaced up and down, and the height of the detection disk up and down is the winding length of the pull rope. The scale change of the pull rope is recorded by the scale indicator on the indicator plate, which corresponds to the lifting height of the detection disk, and this is used as the standard value to compare with the value detected by the radar water level gauge, thereby realizing the calibration of the radar water level gauge. After the calibration is completed, the universal joint is disassembled from the cantilever, and the pull rope and the detection disk can be stored, which is convenient to carry and transport.

[0022] The portable radar water level meter calibration device can realize effective calibration of the radar water level meter. It is not only simple in structure, easy to operate, convenient to carry and use, but also makes the calibration work of the radar water level meter simple, convenient and highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0024] Figure 1 This is a schematic diagram of the structure of the portable radar water level gauge calibration device of the utility model;

[0025] Figure 2 This is a schematic diagram of the installation structure of the cantilever of the utility model;

[0026] Figure 3 This is a schematic diagram of the installation structure of the roller stand of the utility model on the calibration frame;

[0027] Figure 4It is another three-dimensional structural schematic diagram of the utility model roller rack installed on the calibration frame;

[0028] Figure 5 This is a schematic diagram of the installation structure of the winding roller of the utility model on the roller frame;

[0029] Figure 6 It is a cross-sectional structural schematic diagram of the utility model in which the winding roller is installed on the roller frame;

[0030] Figure 7 for Figure 1 A schematic diagram of the enlarged structure of the middle I part;

[0031] 1-Water level detection platform; 2-column; 3-vertical shaft; 4-fixed seat; 5-sleeve; 6-cantilever; 7-reinforced truss; 8-motor mounting seat; 9-reduction motor; 10-driving gear; 11-driven gear; 12-radar water level gauge; 13-calibration frame; 14-roller frame; 15-winding roller; 16-pull rope; 1601-scale line; 17-guide roller; 18-indicator plate; 1801-scale indicator; 19-universal joint; 20-roller; 21-detection plate; 2101-water storage tank; 22-rotating shaft; 23-hand crank handle; 24-ratchet; 25-claw; 26-spring connecting plate; 27-tension spring; 28-Foma wheel; 29-mounting plate; 30-latch pin; 31-guide shaft. DETAILED DESCRIPTION

[0032] 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. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0034] At the same time, the meaning of "and / or" or "and / or" appearing in the full text includes three options. Taking "A and / or B" as an example, it includes option A, or option B, or a option in which both A and B are satisfied.

[0035] In addition, in the present utility model, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0036] like Figures 1 to 7 As shown together, the present embodiment provides a portable radar water level gauge calibration device, including a column 2 fixedly mounted on a water level detection platform 1, a cantilever 6 is mounted on the top of the column 2, and a radar water level gauge 12 is mounted on the end of the cantilever 6 away from the column 2; it also includes a calibration frame 13 located on the water level detection platform 1, a roller frame 14 is fixedly mounted on the calibration frame 13, a winding roller 15 is rotatably mounted on the roller frame 14, a pull rope 16 is wound around the winding roller 15, and a scale line 1601 is provided on the pull rope 16, a guide roller 17 corresponding to the winding roller 15 is rotatably mounted on the top of the calibration frame 13, an indicator plate 18 is provided between the guide roller 17 and the winding roller, and a scale indicator 1801 is provided on the indicator plate 18.

[0037] A universal joint 19 is also detachably installed at one end of the cantilever 6 away from the column 2, and a roller 20 is rotatably installed at the bottom end of the universal joint 19. When in the calibration state, one end of the pull rope 16 is wound around the winding roller 15, and the other end of the pull rope 16 passes around the roller 20 and is connected to a detection disk 21. The detection disk 21 is located below the radar water level gauge 12, and the detection disk 21 at least partially corresponds to the radar water level gauge 12. The universal joint 19 can meet the usage requirements of calibration work at different angles.

[0038] When in use, the calibration frame 13 is placed on the water level detection platform 1, the universal joint 19 is installed on the end of the cantilever 6 away from the column 2, and then the pull rope 16 is passed around the roller 20 to connect with the detection disk 21; by rotating the winding roller 15, the detection disk 21 is displaced up and down, and the height of the up and down displacement of the detection disk 21 is the winding length of the pull rope 16. The scale indicator 1801 on the indicator plate 18 records the scale change of the pull rope 16, which corresponds to the lifting height of the detection disk 21, and uses this as the standard value to compare with the value detected by the radar water level meter 12, thereby realizing the calibration of the radar water level meter 12. After the calibration is completed, the universal joint 19 is disassembled from the cantilever 6, and the pull rope 16 and the detection disk 21 can be stored, which is convenient to carry and transport.

[0039] like Figure 1 and Figure 2As shown, in this embodiment, a vertical shaft 3 is vertically fixedly installed on the top of the column 2, and a shaft sleeve 5 is rotatably mounted on the outer side of the vertical shaft 3. The end of the cantilever 6 close to the column 2 is fixedly connected to the shaft sleeve 5. A motor mounting seat 8 is also fixedly installed on the shaft sleeve 5. A reduction motor 9 is fixedly installed on the motor mounting seat 8. A driving gear 10 is installed on the output shaft of the reduction motor 9. A driven gear 11 meshing with the driving gear 10 is fixedly installed at one end of the vertical shaft 3. The reduction motor 9 works to drive the driving gear 10 to rotate. Since the driven gear 11 is fixedly installed on the vertical shaft 3 and meshes with the driving gear 10, the cantilever 6 is swung around the vertical shaft 3, and the cantilever 6 is controlled to swing until its end is located above the water level detection platform 1, so as to facilitate the installation, maintenance and calibration of the radar water level meter 12. The cantilever 6 is controlled to swing until its end is located above the river, etc., and the water level detection of the river, etc. can be realized through the radar water level meter 12.

[0040] As 1 and Figure 2 As shown, in order to realize the installation of the vertical shaft 3 on the top of the column 2, two corresponding fixed seats 4 are fixedly installed on the top of the column 2, the vertical shaft 3 is fixedly installed between the two fixed seats 4, and the vertical shaft 3 is arranged on the side of the column 2 close to the water surface. After the cantilever 6 is installed on the vertical shaft 3 through the shaft sleeve 5, when the water level detection is in the working state, the end of the cantilever 6 can extend to the top of the river, etc., and the water level of the river, etc. can be detected by the radar water level meter 12.

[0041] As 1 and Figure 2 As shown, in this embodiment, a reinforcing truss 7 is provided above or below the cantilever 6, and the reinforcing truss 7 connects the cantilever 6 and the shaft sleeve 5; the reinforcing truss 7 can greatly improve the installation strength of the cantilever 6, ensure that the cantilever 6 is installed firmly and reliably, and is not easy to bend when used in an external environment.

[0042] like Figures 3 to 6 As shown together, in order to realize the rotatable installation of the winding roller 15 on the roller frame 14, a rotating shaft 22 is rotatably installed on the roller frame 14, and the winding roller 15 is fixedly installed on the rotating shaft 22. One end of the rotating shaft 22 extends to the outside of the roller frame 14 and is installed with a hand crank handle 23. The hand crank handle 23 facilitates the rotation of the winding roller 15.

[0043] like Figures 3 to 6As shown together, in this embodiment, a ratchet 24 is also installed at one end of the rotating shaft 22, a claw 25 is hingedly installed on the roller frame 14, a spring connecting plate 26 is also fixedly installed on the roller frame 14, a tension spring 27 is provided between one end of the claw 25 and the spring connecting plate 26, and the other end of the claw 25 is engaged with the ratchet teeth of the ratchet 24. The winding roller 15 is rotated by the hand crank 23 to achieve the winding of the pull rope 16, and the hand crank 23 is released, and the claw 25 and the ratchet 24 can achieve real-time locking of the winding roller 15 to prevent the detection disk 21 from pulling the pull rope 16, thereby ensuring the accurate recording of the scale of the pull rope 16.

[0044] like Figure 3 and Figure 4 As shown, in this embodiment, the indicator plate 18 is fixedly installed on the top of the calibration frame 13, and the scale indicator 1801 is set on the side of the indicator plate 18 close to the guide roller 17, so as to facilitate the recording of the scale line 1601 of the pull rope 16 according to the scale indicator 1801.

[0045] like Figures 3 to 6 As shown together, in this embodiment, a guide shaft 31 corresponding to the winding roller 15 is fixedly mounted on the roller frame 14 , and the guide shaft 31 is located above the winding roller 15 to guide the pull rope 16 .

[0046] like Figure 3 and Figure 4 As shown, in this embodiment, the bottom corners of the calibration frame 13 are all installed with Formax wheels 28, which facilitate the movement of the calibration frame 13, making the transportation and movement of the calibration frame 13 convenient and labor-saving. During calibration, the Formax wheels 28 can realize positioning and support of the calibration frame 13.

[0047] like Figure 1 and Figure 7 As shown, in order to facilitate the installation and removal of the universal joint 19 at the end of the cantilever 6, a mounting plate 29 is fixedly installed at one end of the cantilever 6 away from the column 2, and a through hole is opened on the mounting plate 29, and the top of the universal joint 19 passes through the through hole, and a socket is opened at the top of the universal joint 19, and a pin 30 is inserted in the socket of the universal joint 19; by pulling out the pin 30, the universal joint 19 can be removed from the cantilever 6.

[0048] like Figure 1 As shown, in this embodiment, the detection disk 21 is disc-shaped, and the detection disk 21 is provided with a water storage tank 2101. When in use, water can be filled in the water storage tank 2101 to simulate the water level detection of a water body such as a river.

[0049] The portable radar water level gauge calibration device based on the above structure can realize effective calibration of the radar water level gauge 12. It is not only simple in structure, easy to operate, easy to carry and use, but also makes the calibration work of the radar water level gauge 12 simple and convenient, and has strong practicality.

[0050] It should be understood that the purpose of these embodiments is only to illustrate the utility model and is not intended to limit the protection scope of the utility model. In addition, it should also be understood that after reading the technical content of the utility model, those skilled in the art can make various changes, modifications and / or variations to the utility model, and all of these equivalent forms also fall within the protection scope defined by the claims attached to this application.

Claims

1. A portable radar water level gauge calibration device, characterized in that: It comprises a column fixedly mounted on a water level detection platform, a cantilever is mounted on the top of the column, and a radar water level meter is mounted on one end of the cantilever away from the column; It also includes a calibration frame located on the water level detection platform, a roller frame is fixedly installed on the calibration frame, a winding roller is rotatably installed on the roller frame, a pull rope is wound around the winding roller, and a scale line is provided on the pull rope, a guide roller corresponding to the winding roller is rotatably installed on the top of the calibration frame, an indicator plate is provided between the guide roller and the winding roller, and a scale indicator is provided on the indicator plate; A universal joint is detachably mounted on one end of the cantilever away from the column, and a roller is rotatably mounted on the bottom end of the universal joint. When in a calibration state, one end of the pull rope is wound around the winding roller, and the other end of the pull rope passes around the roller and is connected to a detection disk. The detection disk is located below the radar water level gauge, and the detection disk at least partially corresponds to the radar water level gauge.

2. The portable radar water level gauge calibration device according to claim 1, characterized in that: A vertical shaft is fixedly installed on the top of the column, a shaft sleeve is rotatably mounted outside the vertical shaft, one end of the cantilever close to the column is fixedly connected to the shaft sleeve, a motor mounting seat is also fixedly installed on the shaft sleeve, a reduction motor is fixedly installed on the motor mounting seat, a driving gear is installed on the output shaft of the reduction motor, and a driven gear meshing with the driving gear is fixedly installed on one end of the vertical shaft.

3. The portable radar water level gauge calibration device according to claim 2, characterized in that: Two corresponding fixing seats are fixedly installed on the top of the column, the vertical shaft is fixedly installed between the two fixing seats, and the vertical shaft is arranged on a side of the column close to the water surface.

4. The portable radar water level gauge calibration device according to claim 2, characterized in that: A reinforcing truss is provided above or below the cantilever, and the reinforcing truss connects the cantilever and the shaft sleeve.

5. The portable radar water level gauge calibration device according to any one of claims 1 to 4, characterized in that: A rotating shaft is rotatably mounted on the roller frame, and the winding roller is fixedly mounted on the rotating shaft. One end of the rotating shaft extends outside the roller frame and is mounted with a hand crank.

6. The portable radar water level gauge calibration device according to claim 5, characterized in that: A ratchet is also installed at one end of the rotating shaft, a clamping claw is hingedly installed on the roller frame, a spring connecting plate is also fixedly installed on the roller frame, a tension spring is provided between one end of the clamping claw and the spring connecting plate, and the other end of the clamping claw is clamped with the ratchet teeth of the ratchet.

7. The portable radar water level gauge calibration device according to claim 6, characterized in that: The indicator plate is fixedly installed on the top of the calibration frame, and the scale indicator is arranged on a side of the indicator plate close to the guide roller.

8. The portable radar water level gauge calibration device according to claim 6, characterized in that: The bottom corners of the calibration frame are all equipped with Fumar wheels.

9. The portable radar water level gauge calibration device according to any one of claims 1 to 4, characterized in that: A mounting plate is fixedly mounted on one end of the cantilever away from the column, a through hole is provided on the mounting plate, the top end of the universal joint passes through the through hole, and a socket is provided on the top end of the universal joint, a latch is inserted into the socket of the universal joint.

10. The portable radar water level gauge calibration device according to claim 9, characterized in that: The detection disk is in the shape of a disk and is provided with a water storage tank.

Images