Side-mounted liquid level meter calibration test device

Abstract

This invention provides a side-mounted liquid level gauge calibration and testing device. It includes a support body with a mounting assembly for fixing the liquid level gauge. The mounting assembly includes a first water inlet; a detection tube mounted on the support body, having a second water inlet at the same vertical height as the first water inlet; a standard component on the detection tube for detecting the liquid level within the tube; a water tank with its outlet connected to both the first and second water inlets, supplying water to the liquid level gauge and the detection tube; and a controller electrically connected to the liquid level gauge and the standard component. This invention, through the detection tube mounted on the support body and the mounting assembly for fixing the liquid level gauge, ensures that the first and second water inlets are at the same vertical height. At the same liquid level height, both the liquid level gauge and the standard component output corresponding electrical signals, which are then compared to simulate the accuracy of the liquid level gauge detection under actual operating conditions, thus improving the detection accuracy of the liquid level gauge.

Description

Technical Field

[0001] This invention relates to the field of liquid level gauge testing technology, and in particular to a side-mounted liquid level gauge calibration and testing device. Background Technology

[0002] As a measuring instrument for various liquid levels, level gauges largely avoid the disadvantages of manual gauging. Types of level gauges include magnetic levitation, pressure, ultrasonic, magnetic float, and radar types. As a crucial measuring instrument, the accuracy of level gauge measurements directly affects various economic indicators of a company, such as business settlement, cost accounting, and energy conservation. Therefore, the testing of level gauges is of great significance.

[0003] In the existing technology, the calibration and testing of level gauges mainly adopts the simulation method. For magnetic float level gauges, especially large-range level gauges, a simple simulation method based on the magnetic coupling principle is mainly used. These methods have limitations in the coverage of calibration points and the comprehensiveness of error analysis. They cannot simulate the working conditions of level gauges under real working conditions, which can easily lead to inaccurate test results. Summary of the Invention

[0004] This invention provides a side-mounted liquid level gauge calibration and testing device to solve the technical problem that existing devices cannot simulate the working conditions of the liquid level gauge under real working conditions, which easily leads to inaccurate test results.

[0005] This invention provides a side-mounted liquid level gauge calibration and testing device, the side-mounted liquid level gauge calibration and testing device comprising:

[0006] A support body is provided with a placement assembly for fixing a level gauge. The placement assembly includes a first water inlet, which is connected to the water inlet end of the level gauge. A detection tube is mounted on the support body. The detection tube has a second water inlet, which is located at the same vertical height as the first water inlet. The detection tube is equipped with a standard component, which is used to detect the liquid level inside the detection tube. A water tank, the outlet of which is connected to the first and second inlets and supplies water to the level gauge and the detection tube; A controller, which is electrically connected to the level gauge and the standard component, and is used to receive electrical signals from the level gauge and the standard component.

[0007] In one embodiment of the present invention, the placement component has an installation position and a detection position. The installation position is radially parallel to the support body, and the detection position is axially parallel to the support body. When the placement component is located at the detection position, the level gauge is arranged in a vertical direction.

[0008] In one embodiment of the present invention, the placement assembly includes a rotating mechanism, a mounting plate, a fixed seat, and a sliding seat. The rotating mechanism is disposed on the support body. The mounting plate is connected to the output end of the rotating mechanism. The fixed seat is disposed on the mounting plate. The mounting plate is provided with a slide rail. The sliding seat is movably disposed on the slide rail along the extension direction of the slide rail. The fixed seat and the sliding seat are used for detachable connection with the level gauge.

[0009] In one embodiment of the present invention, the rotating mechanism includes a bracket and a first motor. The bracket is disposed on the support body, the first motor is disposed on the bracket, and the output end of the first motor is provided with a connecting plate, the connecting plate being connected to the mounting plate.

[0010] In one embodiment of the present invention, the support body is provided with a plurality of baffles spaced apart along its axial direction, the baffles being used to limit the mounting plate when it is in the detection position.

[0011] In one embodiment of the present invention, the bracket is provided with a plurality of telescopic rods, and the connecting plate is provided with a plurality of limiting sleeves. When the placement component is located in the detection position, the telescopic rods are used to engage with the limiting sleeves for limiting.

[0012] In one embodiment of the present invention, a fixing frame is provided on the opposite side of the support body and the placement component, the fixing frame is provided with a second motor, the output end of the second motor is provided with a fixing plate, and the detection tube is detachably connected to the fixing plate.

[0013] In one embodiment of the present invention, the support body is provided with an indicator component, the indicator component including a base plate, an indicator tube and a camera mechanism, the indicator tube is disposed on the base plate, the indicator tube is provided with a third water inlet, the third water inlet is located at the same vertical height as the first water inlet and the second water inlet, the third water inlet is connected to the water outlet of the water tank, the base plate is provided with a scale located on one side of the indicator tube, and the camera mechanism is used to monitor the water level of the indicator tube.

[0014] In one embodiment of the present invention, the base plate is provided with a drive motor, a drive wheel, and a driven wheel. The drive wheel and the driven wheel are located at both ends of the base plate along its length. The drive motor is electrically connected to the controller, and the output end of the drive motor is connected to the drive wheel. A traction rope is wound between the drive wheel and the driven wheel. The camera mechanism includes a guide rail, a slider, and a camera. The guide rail is located on the base plate, the slider is slidably connected to the guide rail, and the slider is detachably connected to the traction rope. The camera is detachably connected to the slider, and the camera end of the camera is aligned with the indicator tube and the scale.

[0015] In one embodiment of the present invention, the support body is provided with a plurality of locking plates along its axial direction, and the locking plates are provided with fixing sleeves for fixing the detection tube.

[0016] The beneficial effects of this invention are as follows: The side-mounted liquid level gauge calibration and testing device proposed in this invention, through the detection tube set on the support body and the placement component for fixing the liquid level gauge, makes the first water inlet and the second water inlet at the same vertical height. After liquid is introduced into the detection tube and the liquid level gauge, the liquid level rises or falls at the same height. At the same liquid level height, both the liquid level gauge and the standard component output corresponding electrical signals, which are then compared to simulate whether the detection of the liquid level gauge is accurate under actual working conditions, thereby improving the detection accuracy of the liquid level gauge. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0018] In the attached diagram: Figure 1 This is a schematic diagram of the structure of the placement component when it is located at the detection position according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the placement component when it is located in the mounting position according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the side-mounted liquid level gauge calibration and testing device provided in one embodiment of the present invention from another direction; Figure 4 This is a partial structural schematic diagram of the placement component provided in one embodiment of the present invention; Figure 5 This is a schematic diagram of another part of the structure of the placement component provided in one embodiment of the present invention; Figure 6 This is a schematic diagram of the connecting flange and the first water inlet provided in one embodiment of the present invention; Figure 7 This is a schematic diagram of the structure of an indicator component provided in one embodiment of the present invention.

[0019] The attached figures are labeled as follows: Support body 1, Placement component 2, Bracket 21, First motor 22, Connecting plate 23, Mounting plate 24, Fixed seat 25, Slide rail 26, Sliding seat 27, Connecting flange 28, First water inlet 2801, Limiting seat 29, Push rod 210, Push cylinder 211, Telescopic rod 212, Limiting sleeve 213, Level gauge 3, Baffle 4, Standard detection component 5, Fixed frame 51, Second motor 52, Fixed plate 53, Detection tube 54, Second water inlet 5401, Clamp 55, Locking plate 56, Fixed sleeve 57, Standard part 58, Indicator component 6, Base plate 61, Drive motor 62, Drive wheel 63, Driven wheel 64, Traction rope 65, Slider 66, Camera 67, Guide rail 68, Indicator tube 69, Third water inlet 6901, Scale 610. Detailed Implementation

[0020] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0021] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the shape, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0022] In the following description, numerous details are explored to provide a more thorough explanation of embodiments of the invention. However, it will be apparent to those skilled in the art that embodiments of the invention may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the invention.

[0023] like Figure 1 - Figure 7 As shown, the present invention provides a calibration and testing device for a side-mounted liquid level gauge 3.

[0024] In one exemplary embodiment, the side-mounted level gauge 3 calibration test apparatus includes: The support body 1 is a hollow circular tube with a base installed at its bottom. The support body 1 is vertically installed on the ground. The support body 1 is provided with a placement assembly 2 for fixing the level gauge 3. The placement assembly 2 includes a first water inlet 2801, which is connected to the water inlet of the level gauge 3 for supplying water to the level gauge 3. A detection tube 54 is provided on the support body 1. The detection tube 54 has a second water inlet 5401, which is located at the same vertical height as the first water inlet 2801 to ensure that the water level in the detection tube 54 is at the same height as the water level in the level gauge 3. The detection tube 54 is provided with a standard component 58 for detecting the liquid level in the detection tube 54. A water tank is provided with an outlet that is connected to the first water inlet 2801 and the second water inlet 5401 and supplies water to the level gauge 3 and the detection tube 54. A controller is provided with the level gauge 3 and the standard component 58 electrically connected.

[0025] In this embodiment, by using the detection tube 54 set on the support body 1 and the placement component 2 for fixing the level gauge 3, the first water inlet 2801 and the second water inlet 5401 are located at the same vertical height. After liquid is introduced into the detection tube 54 and the level gauge 3, the liquid level rises or falls at the same height. At the same liquid level height, both the level gauge 3 and the standard component 58 output corresponding electrical signals. By comparing the two, the accuracy of the detection of the level gauge 3 under actual working conditions can be simulated, thereby improving the detection accuracy of the level gauge 3.

[0026] For example, in this embodiment, a pressure tank is also provided, which can provide pressure to the water tank so that the water in the water tank can be pumped into the detection tube 54 and the level gauge 3.

[0027] For example, in this embodiment, the controller can be an industrial computer that integrates relevant controllers. The industrial computer has a human-machine interface and the controller stores a preset program. The operator can control the amount of water added to the water tank through the program.

[0028] For example, in this embodiment, the level gauge 3 transmits an electrical signal when the water level reaches a certain amount. For instance, the level gauge 3 transmits an electrical signal at the zero position, 25%, 50%, 75%, and 100% of the range of the standard component 58. Correspondingly, the standard component 58 also transmits an electrical signal. The electrical signals of the two are recorded and compared in the industrial control computer.

[0029] It is worth noting that in this embodiment, the standard component 58 is a device or equipment that can detect the liquid level in the detection tube 54. After calibration, it is installed at the end of the detection tube 54 to detect the liquid level inside the detection tube 54.

[0030] In an exemplary embodiment, the placement component 2 has a mounting position and a detection position. The mounting position is radially parallel to the support 1, and the detection position is axially parallel to the support 1. When the placement component 2 is located at the detection position, the level gauge 3 is arranged in the vertical direction.

[0031] In this embodiment, the mounting position is mainly used for installing the level gauge 3 to be tested, and the detection position is used to simulate the actual placement state of the level gauge 3 under actual working conditions. Specifically, the mounting position is radially parallel to the support body 1, making the entire placement assembly 2 horizontal to facilitate the installation or removal of the level gauge 3. The detection position is axially parallel to the support body 1, allowing the level gauge 3 to be placed vertically to simulate real working conditions.

[0032] For example, the placement component 2 includes a rotating mechanism, a mounting plate 24, a fixed seat 25, and a sliding seat 27. The rotating mechanism is mounted on the support body 1. The mounting plate 24 is connected to the output end of the rotating mechanism. The fixed seat 25 is mounted on the mounting plate 24. The mounting plate 24 is provided with a slide rail 26. The sliding seat 27 is movably mounted on the slide rail 26 along its extension direction. The fixed seat 25 and the sliding seat 27 are used for detachable connection with the level gauge 3. In this embodiment, the rotating mechanism can drive the mounting plate 24 to rotate. The mounting plate 24 is a long plate. The fixed seat 25 is fixedly mounted on the mounting plate 24 and remains stationary, serving to fix one end of the level gauge 3. The sliding seat 27 moves on the slide rail 26, and the slide rail 26 serves to fix the other end of the level gauge 3. Therefore, the fixed seat 25 and the sliding seat 27 can install level gauges 3 of different lengths, thereby expanding the scope of application of this application and enabling the detection of various models of level gauges 3.

[0033] For example, in this embodiment, both the fixed base 25 and the sliding base 27 are provided with connecting flanges 28. These connecting flanges 28 are connected to the connecting components on the level gauge 3. Specifically, bolts can be used for a detachable connection, or other fasteners can be used. During installation, ensure that the extension direction of the level gauge 3 housing is parallel to the extension direction of the mounting plate 24. In a specific embodiment, the water inlet is located on the connecting flange 28. After the connecting flange 28 is fixed to the level gauge 3, water from the tank can enter the level gauge 3 through the connecting flange 28. During installation, since the water inlet of the level gauge 3 is connected to the fixed base 25, the zero point of the level gauge 3's range is aligned with the first water inlet 2801.

[0034] For example, the aforementioned rotating mechanism includes a bracket 21 and a first motor 22. The bracket 21 is mounted on the support body 1, and the first motor 22 is mounted on the bracket 21. A connecting plate 23 is fixedly connected to the output end of the first motor 22. The connecting plate 23 and the mounting plate 24 are detachably connected by bolts or screws. In this embodiment, when the first motor 22 starts, it drives the connecting plate 23 to rotate, and the connecting plate 23 in turn drives the mounting plate 24 to rotate. Specifically, the first motor 22 is a servo motor with a maximum rotation angle of 90°, controlled by a controller. In this embodiment, the bracket 21 is fixedly connected to the support body 1.

[0035] In an exemplary embodiment, the support 1 is provided with a plurality of baffles 4 spaced apart along its axial direction, the baffles 4 being used to limit the mounting plate 24 when it is in the detection position.

[0036] In this embodiment, by setting multiple baffles 4, the mounting plate 24 can be limited by the multiple baffles 4 simultaneously to ensure that the mounting plate 24 is in a vertical state when it is in the detection position.

[0037] For example, in this embodiment, the baffle 4 is a plurality of "L"-shaped blocks, which are mounted on the support body 1 by a support seat.

[0038] For example, in this embodiment, the baffle 4 is mainly used to limit the mounting plate 24 on one side (right side) in the width direction, and a limiting component for limiting the left side of the mounting plate 24 is also provided on the bracket 21.

[0039] In a specific embodiment, the limiting component includes a limiting seat 29 and a push rod 210 disposed on the limiting seat 29. The limiting seat 29 is mounted on the bracket 21 and is also an "L"-shaped plate. The axial direction of the push rod 210 is horizontal and perpendicular to the vertical direction. A push cylinder 211 is disposed on the limiting seat 29, and the output end of the push cylinder 211 is connected to the push rod 210. The limiting component in this embodiment mainly has the following functions: 1. When the mounting plate 24 rotates from the mounting position to the detection position, the limit seat 29 can limit the mounting plate 24. The limit seat 29 and the baffle 4 work together to prevent the mounting plate 24 from rotating beyond the limit and ensure that the level gauge 3 to be measured is in a vertical state.

[0040] 2. To accommodate different models of level gauges 3, the mounting plate 24 is relatively long. Since the mounting plate 24 is rotated by the first motor 22, a single motor drive would place a heavy load on it. Therefore, a push rod 210 is provided to assist the mounting plate 24 in rotating. When the mounting plate 24 rotates from the detection position to the mounting position, the push rod 210 extends under the action of the push cylinder 211, applying a thrust to the mounting plate 24, thereby causing it to rotate around the motor's output end. Therefore, using a dual-drive configuration assists the mounting plate 24 in rotating, improving its stability.

[0041] In an exemplary embodiment, the bracket 21 is provided with a plurality of telescopic rods 212 and the connecting plate 23 is provided with a plurality of limiting sleeves 213. When the placement component 2 is located in the detection position, the telescopic rods 212 are used to engage with the limiting sleeves 213 for limiting.

[0042] In this embodiment, when the connecting plate 23 rotates from the mounting position to the detection position, the multiple telescopic rods 212 can fix the connecting plate 23, thereby improving the stability of the entire placement assembly 2.

[0043] For example, in this embodiment, the connecting plate 23 is rectangular in shape, and four limiting sleeves 213 are provided, located at the four corners of the rectangle. Correspondingly, the telescopic rods 212 and the limiting sleeves 213 are positioned in the detection position. When the connecting plate 23 rotates to the detection position, the telescopic rods 212 pass through the limiting sleeves 213 to support and limit the connecting plate 23. Specifically, in this embodiment, the telescopic rods 212 are all driven by telescopic cylinders to cooperate with the limiting sleeves 213, and the telescopic cylinders are electrically connected to the controller and controlled by the controller.

[0044] It is worth noting that in this embodiment, other limiting or positioning devices, such as positioning bolts or positioning pins, may also be used.

[0045] It should also be noted that in this application, a support device may also be provided, which can support the mounting plate 24 when the mounting plate 24 is rotated from the mounting position to the detection position.

[0046] In an exemplary embodiment, a standard detection component 5 is provided on the support body 1. The standard detection component 5 performs standard detection on the liquid level to compare it with the liquid level gauge 3 to be tested. The standard detection component 5 includes a fixing frame 51, which is disposed on the support body 1 and is positioned opposite to the placement component 2. The fixing frame 51 is provided with a second motor 52, and the output end of the second motor 52 is provided with a fixing plate 53. The detection tube 54 is detachably connected to the fixing plate 53.

[0047] In this embodiment, the fixed frame 51 and the second motor 52 are provided so that the second motor 52 can drive the fixed plate 53 to rotate, thereby rotating the detection tube 54, so that the detection tube 54 is rotated to a horizontal state to realize the installation or removal of the standard part 58, and the detection tube 54 is rotated to a vertical state to realize standard measurement.

[0048] For example, in this embodiment, the second motor 52 is also electrically connected to the controller, and the maximum rotation angle of the second motor 52 is 90° under the control of the controller.

[0049] For example, in this embodiment, the detection tube 54 is fixed to the fixing plate 53 by a clamp 55.

[0050] For example, in this embodiment, the support body 1 is provided with a plurality of locking plates 56 along its axial direction, and the locking plates 56 are provided with fixing sleeves 57 for fixing the detection tube 54. The fixing sleeves 57 can fix the middle and top of the detection tube 54, keeping it stably in a vertical state and ensuring detection accuracy.

[0051] It is worth noting that in this embodiment, a limiting structure for limiting the position of the fixing plate 53 can also be provided on the support body 1 to ensure that the fixing plate 53 rotates into place.

[0052] In an exemplary embodiment, the support 1 is provided with an indicator component 6, which includes a base plate 61, an indicator tube 69, and a camera mechanism. The indicator tube 69 is disposed on the base plate 61 and has a third water inlet 6901. The third water inlet 6901 is located at the same vertical height as the first water inlet 2801 and the second water inlet 5401. The third water inlet 6901 is connected to the water outlet of the water tank. A scale 610 is provided on the base plate 61 on one side of the indicator tube 69. The camera mechanism is used to monitor the water level of the indicator tube 69.

[0053] In this embodiment, the liquid level height can be clearly displayed by the indicator component 6. In this embodiment, the base plate 61 is installed vertically on the support body 1, and the indicator tube 69 is also installed vertically on the base plate 61. The first water inlet 2801, the second water inlet 5401, and the third water inlet 6901 are all located at the same vertical height to ensure that the liquid levels of the three are always on the same plane.

[0054] For example, in this embodiment, the first inlet 2801, the second inlet 5401, and the third inlet 6901 are connected to the water tank through a multi-way valve (not shown in the figure), such as a three-way valve, and the inlet end of the multi-way valve is connected to the water tank. The multi-way valve is electrically connected to the controller. At the same time, in this embodiment, by adjusting the opening degree of different inlets of the multi-way valve, it is ensured that the liquid level in the detection tube 54, the indicator tube 69, and the level gauge 3 is always at the same height.

[0055] For example, a drive motor 62, a drive wheel 63, and a driven wheel 64 are provided on the base plate 61. The drive wheel 63 and the driven wheel 64 are located at both ends of the base plate 61 along its length. The drive motor 62 is electrically connected to the controller. The output end of the drive motor 62 is connected to the drive wheel 63. A traction rope 65 is wound between the drive wheel 63 and the driven wheel 64. The camera mechanism includes a guide rail 68, a slider 66, and a camera 67. The guide rail 68 is located on the base plate 61. The slider 66 is slidably connected to the guide rail 68 and is detachably connected to the traction rope 65. The camera 67 is detachably connected to the slider 66. The camera end of the camera 67 is aligned with the indicator tube 69 and the scale 610. In this embodiment, when water flows through the level gauge 3, the indicator tube 69, and the detection tube 54 simultaneously, the drive motor 62 will drive the drive wheel 63 to rotate. The drive wheel 63, the traction rope 65, and the driven wheel 64 move synchronously. The traction rope 65 circulates between the drive wheel 63 and the driven wheel 64, while the slider 66 mounted on the traction rope 65 moves in a straight line, thereby moving the camera 67.

[0056] For example, in this embodiment, the indicator tube 69 is detachably connected to the base plate 61 by means of bolts, screws or strong adhesive.

[0057] In a specific embodiment, the drive motor 62 is electrically connected to the controller. Since the controller controls the multi-way valve, the controller controls the output power of the drive motor 62 to drive the traction rope 65 to drive the camera 67 to rise at a constant speed following the liquid level in the indicator tube 69, so as to clearly capture the page of the indicator tube 69 and its corresponding scale. The captured image is then remotely transmitted to the industrial control computer for the operator to observe and confirm.

[0058] In summary, this application, through the detection tube 54 set on the support body 1 and the placement component 2 for fixing the level gauge 3, makes the first water inlet 2801 and the second water inlet 5401 at the same vertical height. When the level gauge 3 and the standard component 58 are at the same liquid level height, they both output corresponding electrical signals and compare them to simulate whether the detection of the level gauge 3 is accurate under actual working conditions, thereby improving the detection accuracy of the level gauge 3.

[0059] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.

Claims

1. A side-mounted liquid level gauge calibration and testing device, characterized in that, include: A support body is provided with a placement assembly for fixing a level gauge. The placement assembly includes a first water inlet, which is connected to the water inlet end of the level gauge. A detection tube is mounted on the support body. The detection tube has a second water inlet, which is located at the same vertical height as the first water inlet. The detection tube is equipped with a standard component, which is used to detect the liquid level inside the detection tube. A water tank, the outlet of which is connected to the first and second inlets and supplies water to the level gauge and the detection tube; A controller, which is electrically connected to the level gauge and the standard component, and is used to receive electrical signals from the level gauge and the standard component.

2. The side-mounted liquid level gauge calibration and testing device according to claim 1, characterized in that: The placement component has an installation position and a detection position. The installation position is radially parallel to the support body, and the detection position is axially parallel to the support body. When the placement component is located at the detection position, the level gauge is set in the vertical direction.

3. The side-mounted liquid level gauge calibration and testing device according to claim 2, characterized in that: The placement assembly includes a rotating mechanism, a mounting plate, a fixed seat, and a sliding seat. The rotating mechanism is mounted on the support body. The mounting plate is connected to the output end of the rotating mechanism. The fixed seat is mounted on the mounting plate. The mounting plate is provided with a slide rail. The sliding seat is movably mounted on the slide rail along the extension direction of the slide rail. The fixed seat and the sliding seat are used for detachable connection with the level gauge.

4. The side-mounted liquid level gauge calibration and testing device according to claim 3, characterized in that: The rotating mechanism includes a bracket and a first motor. The bracket is mounted on the support body, and the first motor is mounted on the bracket. The output end of the first motor is provided with a connecting plate, and the connecting plate is connected to the mounting plate.

5. The side-mounted liquid level gauge calibration and testing device according to claim 4, characterized in that: The support body is provided with multiple baffles spaced apart along its axial direction, and the baffles are used to limit the mounting plate when it is in the detection position.

6. The side-mounted liquid level gauge calibration and testing device according to claim 4, characterized in that: The bracket is provided with multiple telescopic rods, and the connecting plate is provided with multiple limiting sleeves. When the placement component is in the detection position, the telescopic rods are used to engage with the limiting sleeves for limiting.

7. The side-mounted liquid level gauge calibration and testing device according to claim 1, characterized in that: The support body is provided with a fixing frame on the opposite side of the placement component. The fixing frame is provided with a second motor. The output end of the second motor is provided with a fixing plate. The detection tube is detachably connected to the fixing plate.

8. The side-mounted liquid level gauge calibration and testing device according to claim 1, characterized in that: The support body is equipped with an indicator component, which includes a base plate, an indicator tube, and a camera mechanism. The indicator tube is disposed on the base plate and has a third water inlet. The third water inlet is located at the same vertical height as the first and second water inlets and is connected to the water outlet of the water tank. The base plate is provided with a scale located on one side of the indicator tube, and the camera mechanism is used to monitor the water level of the indicator tube.

9. The side-mounted liquid level gauge calibration and testing device according to claim 8, characterized in that: The base plate is equipped with a drive motor, a drive wheel, and a driven wheel. The drive wheel and the driven wheel are located at both ends of the base plate along its length. The drive motor is electrically connected to the controller, and the output end of the drive motor is connected to the drive wheel. A traction rope is wound between the drive wheel and the driven wheel. The camera mechanism includes a guide rail, a slider, and a camera. The guide rail is located on the base plate, and the slider is slidably connected to the guide rail and detachably connected to the traction rope. The camera is detachably connected to the slider, and the camera's image is aligned with the indicator tube and the scale.

10. The side-mounted liquid level gauge calibration and testing device according to claim 1, characterized in that: The support body is provided with multiple locking plates along its axial direction, and the locking plates are provided with fixing sleeves for fixing the detection tube.

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