A calibration device for a radar level gauge

Abstract

This utility model discloses a calibration device suitable for radar level gauges, including a base plate and a quick-clamping mechanism connected to the base plate via a position adjustment mechanism. The quick-clamping mechanism includes a circular plate with three annularly arranged sliding grooves on the top of the circular plate. A slider is slidably connected inside the sliding grooves, and a vertical rod is fixedly connected to the bottom of the slider. A U-shaped clamping plate is fixedly connected to the bottom of the vertical rod. The inner wall of the slider is connected to the inner wall of the sliding groove via a spring. Therefore, the rotation of the fan-shaped plate will push the roller, thereby causing the slider to slide in the sliding groove. The three U-shaped clamping plates can be quickly and synchronously opened without manual operation. The electric drive operation is more time-saving and labor-saving, further improving calibration efficiency. It can clamp the circular mounting plate on the radar level gauge. The movement of these clamping plates can realize the quick clamping or loosening operation of the radar level gauge. It does not use a bolt connection method, making the operation simple and convenient.

Description

Technical Field

[0001] This utility model relates to the field of radar level gauge calibration technology, specifically a calibration device suitable for radar level gauges. Background Technology

[0002] The calibration process for a radar level gauge involves fixing the gauge in place with a bracket and placing a reflector on the other side. The radar level gauge is then powered on and sends a signal. This signal is reflected back after encountering the reflector and is received by the gauge. By measuring the round-trip time of the signal, the distance between the radar level gauge and the reflector can be calculated. During calibration, the distance can be changed by adjusting the position of the reflector, thus verifying the accuracy of the radar level gauge's measurement.

[0003] In the traditional use of radar level gauge calibration devices, fixed calibration is usually required. This process involves bolt tightening, which is often cumbersome and complicated. This cumbersome operation makes the calibration process very slow, thus affecting the overall calibration progress and efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a calibration device for a radar level gauge that can clamp a circular mounting plate on a radar level gauge and quickly clamp or release the radar level gauge by moving these plates, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a calibration device suitable for radar level gauges, including a base plate and a quick clamping mechanism connected to the base plate via a position adjustment mechanism. The quick clamping mechanism includes a circular plate with three annularly arranged sliding grooves on the top of the circular plate. A slider is slidably connected inside the sliding grooves, and a vertical rod is fixedly connected to the bottom of the slider. A U-shaped clamping plate is fixedly connected to the bottom end of the vertical rod. The inner wall of the slider is connected to the inner wall of the sliding groove via a spring.

[0006] Preferably, the position adjustment mechanism includes a cylinder and a top plate. The top plate is located above the bottom plate. The bottom of the top plate is fixedly connected to the bottom of the bottom plate by several telescopic rods. Two symmetrically arranged telescopic rods are installed at the bottom of the side of the top plate. The output end of the telescopic rods is fixedly connected to the top of the bottom plate. A reduction motor is installed at the center of the top of the top plate. The output of the reduction motor passes through the top plate and is fixedly connected to a long strip plate. A reflector is fixedly connected to the top of the bottom plate.

[0007] Preferably, a rubber pad is fixedly connected to the inner embedded surface of the U-shaped clamp.

[0008] Preferably, the bottom of the long strip plate is fixedly connected to several annularly arranged arc-shaped frames, the bottom end of the arc-shaped frames is fixedly connected to the outer wall of the circular plate, a small motor is installed near the top of the arc-shaped frames, the output end of the small motor is connected to a rotating plate, three annularly arranged fan-shaped plates are fixedly connected to the outer wall of the rotating plate, and rollers are rotatably connected to the top of the slider via a shaft.

[0009] Preferably, the bottom of the base plate is equipped with several locking casters, and the top plate is equipped with a battery.

[0010] Preferably, the three U-shaped clamps are arranged in a ring, and the rollers are in contact with the outer arc-shaped sidewalls of the fan-shaped plates.

[0011] Preferably, the outer circular sidewall of the telescopic rod is provided with scale lines.

[0012] Preferably, a cylinder control system is installed on the top of the top plate, and the two cylinders are linked and controlled by the cylinder control system.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the three U-shaped clamps move outward and, through the spring rebound force, can clamp the circular mounting plate on the radar level gauge. Their movement enables rapid clamping or loosening of the radar level gauge. When the U-shaped clamps clamp the radar level gauge, the device can perform calibration operations, which is more efficient than calibration after traditional bolt installation. The small motor installed on the top of the arc frame starts working, and its output end drives the rotating plate to rotate. The three sector plates fixedly connected to the outer wall of the rotating plate rotate accordingly. Since the top of the slider is connected to the roller through the shaft, and the roller contacts the outer arc side wall of the sector plate, the rotation of the sector plate will push the roller, thereby driving the slider to slide in the groove. The three U-shaped clamps can be quickly and synchronously opened without manual operation. The electric drive operation is more time-saving and labor-saving, further improving the calibration efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the entire utility model from another angle;

[0016] Figure 3 This is an enlarged three-dimensional structural diagram of the rapid clamping mechanism in this utility model;

[0017] Figure 4 for Figure 3 A schematic diagram of the three-dimensional structure from another angle;

[0018] Figure 5 for Figure 3 A magnified schematic diagram of the structure at point A in the middle.

[0019] In the diagram: 1. Base plate; 2. Position adjustment mechanism; 201. Cylinder; 202. Top plate; 203. Telescopic rod; 204. Scale line; 205. Gear motor; 206. Long strip plate; 3. Quick clamping mechanism; 301. Circular plate; 302. Slide groove; 303. Slider; 304. Vertical rod; 305. U-shaped clamp; 306. Fan-shaped plate; 307. Small motor; 308. Roller; 309. Rotating plate; 310. Arc frame; 311. Spring; 4. Reflector; 5. Locking caster wheel; 6. Battery. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5 The figure shows a calibration device for radar level gauges, including a base plate 1 and a quick clamping mechanism 3 connected to the base plate 1 via a position adjustment mechanism 2. The quick clamping mechanism 3 includes a circular plate 301, with three annularly arranged sliding grooves 302 on the top of the circular plate 301. A slider 303 is slidably connected inside the sliding grooves 302. A vertical rod 304 is fixedly connected to the bottom of the slider 303. A U-shaped clamping plate 305 is fixedly connected to the bottom end of the vertical rod 304. The inner wall of the slider 303 is connected to the inner wall of the sliding groove 302 via a spring 311.

[0022] It is worth noting that the sliding of the slider 303 drives the vertical rod 304 and the U-shaped clamp 305 to move. The three U-shaped clamps 305 are arranged in a ring. When the three U-shaped clamps 305 move outward, they can clamp the circular mounting plate on the radar level gauge through the rebound force of the spring 311. The movement of these clamps can realize the quick clamping or loosening operation of the radar level gauge. When the U-shaped clamps 305 clamp the radar level gauge, the device can perform calibration operation. Compared with the traditional calibration after bolt installation, the efficiency is improved.

[0023] Please see Figure 1 , Figure 3 and Figure 5The position adjustment mechanism 2 includes a cylinder 201 and a top plate 202. The top plate 202 is located above the bottom plate 1. The bottom of the top plate 202 is fixedly connected to the bottom of the bottom plate 1 by several telescopic rods 203. Two symmetrically arranged telescopic rods 203 are installed on the bottom of the side of the top plate 202. The output end of the telescopic rods 203 is fixedly connected to the top of the bottom plate 1. A reduction motor 205 is installed at the center of the top of the top plate 202. The output of the reduction motor 205 passes through the top plate 202 and is fixedly connected to a long strip plate 206. A reflector 4 is fixedly connected to the top of the bottom plate 1.

[0024] The cylinder 201 in the position adjustment mechanism 2 is activated, driving the top plate 202 to move up and down relative to the bottom plate 1. At the same time, the telescopic rod 203 on the side of the top plate 202 plays a guiding and stabilizing role. The vertical movement distance of the top plate 202 can be precisely controlled by the scale line 204 on the telescopic rod 203, thereby adjusting the height of the quick clamping mechanism 3. After the top plate 202 moves up and down, the reduction motor 205 starts to work, and its output end drives the long strip plate 206 to rotate. The arc frame 310 fixedly connected to the bottom of the long strip plate 206 rotates accordingly. The bottom end of the arc frame 310 is fixedly connected to the outer wall of the circular plate 301, so the circular plate 301 also rotates accordingly, thereby changing the position of the radar level gauge after installation, increasing the measurement position points, increasing the measurement base, and improving the accuracy and comprehensiveness of the measurement data.

[0025] A rubber pad is fixedly connected to the inner surface of the U-shaped clamp 305. The surface of the rubber pad is provided with anti-slip texture to increase the friction between it and the radar level gauge to be calibrated, preventing it from sliding or shifting during the calibration process. At the same time, the rubber pad also has a certain degree of elasticity, which can absorb and buffer the collision force between the radar level gauge and the U-shaped clamp 305 to a certain extent, protecting the radar level gauge from damage.

[0026] Please refer to Figure 1 , Figure 3 and Figure 4 The bottom of the long strip plate 206 is fixedly connected to several annularly arranged arc-shaped frames 310. The bottom end of the arc-shaped frames 310 is fixedly connected to the outer wall of the circular plate 301. A small motor 307 is installed near the top of the arc-shaped frames 310. The output end of the small motor 307 is connected to a rotating plate 309. Three annularly arranged fan-shaped plates 306 are fixedly connected to the outer wall of the rotating plate 309. The top of the slider 303 is rotatably connected to a roller 308 via a shaft.

[0027] When the circular plate 301 rotates, the small motor 307 mounted on the top of the arc frame 310 starts to work. Its output end drives the rotating plate 309 to rotate, and the three sector plates 306 fixedly connected to the outer wall of the rotating plate 309 rotate accordingly. Since the top of the slider 303 is rotatably connected to the roller 308 through the shaft, and the roller 308 contacts the outer arc side wall of the sector plate 306, the rotation of the sector plate 306 will push the roller 308, thereby driving the slider 303 to slide in the slide groove 302. The three U-shaped clamps 305 can be quickly and synchronously opened without manual operation. The electric drive operation is more time-saving and labor-saving, further improving the calibration efficiency.

[0028] Please see Figure 2 The bottom of the base plate 1 is equipped with several locking casters 5, and the top plate 202 is equipped with a battery 6. The battery 6 provides power support for the entire calibration device, ensuring the normal operation of the electric drive components such as the small motor 307. The design of the locking casters 5 allows the entire calibration device to be easily moved to the vicinity of the radar level gauge that needs to be calibrated, and after reaching the designated position, it can be stably fixed by the locking function to prevent displacement during operation. This design not only improves calibration efficiency, but also enhances the flexibility and practicality of the device.

[0029] See Figure 3 and Figure 4 The three U-shaped clamps 305 are arranged in a ring. The rollers 308 contact the outer arc sidewall of the fan-shaped plate 306. Under the push of the rollers 308, the U-shaped clamps 305 can spread out evenly along the circumference, providing enough space for the placement and fixation of the radar level gauge. At the same time, the inner sidewall of the U-shaped clamps 305 is designed with anti-slip texture to ensure that the radar level gauge will not slip or shift during the clamping process, thus ensuring the fixation is firm.

[0030] See Figure 2 The telescopic rod 203 has a scale line 204 on its outer circular side wall. The scale line 204 allows the user to intuitively understand the extension length of the telescopic rod 203, and thus accurately measure the height of the radar level gauge to meet the calibration requirements in different scenarios. It eliminates the need for a ruler for measurement, thus improving the accuracy and efficiency of calibration.

[0031] The top plate 202 is equipped with a cylinder control system. The two cylinders 201 are linked and controlled by the cylinder control system. The cylinder control system has a preset program that can automatically adjust the extension and retraction state of the two cylinders 201 according to the specific calibration requirements of the radar level gauge, so as to ensure that the top plate 202 can be raised and lowered smoothly and accurately to the preset position. This design not only simplifies the operation process, but also avoids the errors that may be caused by manual operation, and further improves the accuracy and stability of calibration.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A calibration device for radar level gauges, comprising a base plate (1) and a quick-clamping mechanism (3) connected to the base plate (1) via a position adjustment mechanism (2), characterized in that, The quick clamping mechanism (3) includes a circular plate (301), the top of which has three annularly arranged sliding grooves (302), a slider (303) is slidably connected inside the sliding grooves (302), a vertical rod (304) is fixedly connected to the bottom of the slider (303), a U-shaped clamp (305) is fixedly connected to the bottom of the vertical rod (304), and the inner wall of the slider (303) is connected to the inner wall of the sliding groove (302) by a spring (311).

2. A calibration device for a radar level gauge according to claim 1, characterized in that: The position adjustment mechanism (2) includes a cylinder (201) and a top plate (202). The top plate (202) is located above the bottom plate (1). The bottom of the top plate (202) is fixedly connected to the bottom of the bottom plate (1) through several telescopic rods (203). Two symmetrically arranged telescopic rods (203) are installed at the bottom of the side of the top plate (202). The output end of the telescopic rod (203) is fixedly connected to the top of the bottom plate (1). A reduction motor (205) is installed at the center of the top of the top plate (202). The output of the reduction motor (205) passes through the top plate (202) and is fixedly connected to a long strip plate (206). A reflector plate (4) is fixedly connected to the top of the bottom plate (1).

3. A calibration device for a radar level gauge according to claim 1, characterized in that: The U-shaped clamp (305) has a rubber pad fixedly connected to its inner surface.

4. A calibration device for a radar level gauge according to claim 2, characterized in that: The bottom of the long strip plate (206) is fixedly connected to several annularly arranged arc-shaped frames (310). The bottom end of the arc-shaped frames (310) is fixedly connected to the outer wall of the circular plate (301). A small motor (307) is installed near the top of the arc-shaped frame (310). The output end of the small motor (307) is connected to a rotating plate (309). Three annularly arranged fan-shaped plates (306) are fixedly connected to the outer wall of the rotating plate (309). The top of the slider (303) is rotatably connected to a roller (308) via a shaft.

5. A calibration device for a radar level gauge according to claim 2, characterized in that: The bottom of the base plate (1) is equipped with several locking casters (5), and the top plate (202) is equipped with a battery (6).

6. A calibration device for a radar level gauge according to claim 3, characterized in that: The three U-shaped clamps (305) are arranged in a ring, and the rollers (308) are in contact with the outer arc-shaped sidewall of the fan-shaped plate (306).

7. A calibration device for a radar level gauge according to claim 2, characterized in that: The telescopic rod (203) has scale lines (204) on its outer circular side wall.

8. A calibration device for a radar level gauge according to claim 2, characterized in that: A cylinder control system is installed on the top of the top plate (202), and the two cylinders (201) are linked and controlled by the cylinder control system.

Images