Adjustable calibration device for thermal metering test

Abstract

The utility model discloses an adjustable calibration device for a thermal metering test, which relates to the technical field of thermal metering and comprises a box body, an electric telescopic rod is arranged on the box body, an output end of the electric telescopic rod is connected with a mounting rod, an adjusting plate with three sliding chutes is arranged on the mounting rod, and the adjusting plate is connected with the electric telescopic rod. A sliding block is connected to the middle sliding groove in a sliding mode, two sliding blocks are connected to the sliding grooves in the two sides in a sliding mode respectively, the distance between the distance measuring assembly and a thermostat middle hole can be measured, after the distance is processed by the controller, the electric telescopic rod can be driven to stretch out and draw back, and stopping of the electric telescopic rod does not need to be controlled manually. The distance between the laser range finder and the temperature measuring sensor is subtracted from the measured distance, then the error distance of the laser range finder is added, the bottom of the temperature measuring sensor can be tightly attached to the bottom of the measuring hole through the compensation assembly, and extrusion deformation of the bottom of the temperature measuring sensor cannot be caused.

Description

An adjustable calibration device for thermal metrology testing Technical Field

[0001] This utility model relates to the field of thermal metrology technology, specifically to an adjustable calibration device for thermal metrology testing. Background Technology

[0002] Thermal metrology is the science of measuring physical quantities such as temperature, heat flow, and humidity. It establishes thermal metrology standards based on the laws of thermodynamics, conducts verification and calibration of various measuring instruments, and realizes the transfer or traceability of values ​​for medium and low temperatures, high temperatures, photoelectric high temperatures, radiation temperatures, heat flow, and humidity. Calibration refers to making machines and instruments accurate. Calibration may include the following steps: inspection, correction, reporting, or eliminating any deviation in accuracy of the compared measuring device through adjustment.

[0003] A search revealed that CN218156251U discloses an adjustable calibration device for thermal metrology testing. This device addresses the problem that "existing calibration devices for thermal metrology testing are inconvenient to use due to their simple structure and function, lacking adjustment capabilities. This makes them unsuitable for adjusting to different sizes of calibrated objects, limiting their applicability and failing to meet the diverse calibration needs of current thermal metrology testing, thus reducing work efficiency." This new technical solution allows for free adjustment of the slider's sliding within a groove, facilitating distance adjustment of the temperature sensor mounted at the bottom of the slider, thereby enabling adjustment to different sizes of calibrated objects. Furthermore, by changing the depth of the lifting rod within the base column, the overall height of the device can be adjusted, improving its overall ease of use and applicability.

[0004] The technical solution requires the temperature sensor to be tightly attached to the bottom of the measuring hole to insulate it from the external environment for testing. However, the applicant found that adjusting the height of the temperature sensor to make it tightly attached to the bottom of the measuring hole was troublesome and laborious. In addition, the slider could slide freely in the groove, which caused the temperature sensor to move due to shaking when it was lowered after the position of the temperature sensor was adjusted, thus making it impossible to align with the measuring hole below. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides an adjustable calibration device for thermal metrology testing, which solves the problems existing in the prior art.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: an adjustable calibration device for thermal metrology testing, comprising a housing, an electric telescopic rod provided on the housing, an installation rod connected to the output end of the electric telescopic rod, an adjustment plate with three sliding grooves provided on the installation rod, a slider slidably connected on the middle sliding groove, two sliders slidably connected on the two side sliding grooves respectively, and a compensation component provided at the bottom of each slider, and a temperature sensor provided at the bottom of each compensation component;

[0007] A distance measuring component for measuring the distance between the temperature sensor and the thermostat measuring hole is also slidably connected to the central slide groove;

[0008] The top of the slider is connected to a fixing component, which is used to fix the slider during lifting and lowering.

[0009] Preferably, the ranging component includes a mounting block slidably connected to a central groove, and a laser rangefinder is disposed at the bottom of the mounting block, with the bottom of the laser rangefinder being higher than the bottom of the temperature sensor.

[0010] Preferably, the compensation component includes a vertical rod that is slidably connected to the bottom of the slider, the bottom of the vertical rod being connected to a temperature sensor, and the temperature sensor being provided with a spring connected to the slider.

[0011] Preferably, the fixing component includes a support rod mounted on the mounting rod, an electromagnet plate mounted on the support rod, a slot on the top of the slider, and insert rods slidably connected to the slots, all of which are located below the electromagnet plate.

[0012] Preferably, a cushioning pad is provided at the bottom of the inner wall of the slot.

[0013] Preferably, the housing is equipped with a controller, which is electrically connected to a laser rangefinder and an electric telescopic rod, and the housing is also equipped with a maintenance panel.

[0014] This invention provides an adjustable calibration device for thermal metrology testing. Compared with the prior art, it has the following advantages:

[0015] 1. The adjustable calibration device for thermal metrology testing can measure the distance between the device and the central hole of the thermostat through a distance measuring component. After processing by the controller, the device can drive the electric telescopic rod to extend or retract, eliminating the need for manual control of the electric telescopic rod to stop. The measured distance is subtracted from the distance between the laser rangefinder and the temperature sensor, and then the error distance of the laser rangefinder is added. Through the compensation component, it can be ensured that the bottom of the temperature sensor is in close contact with the bottom of the measuring hole without causing compression or deformation of the bottom of the temperature sensor.

[0016] 2. The adjustable calibration device for thermal metrology testing can quickly fix the slider after adjusting its position using a fixing component, thereby fixing the temperature sensor below. This prevents the temperature sensor from moving due to shaking during descent, ensuring that it is aligned with the measurement hole below after descent. Attached Figure Description

[0017] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 is a schematic diagram of the ranging component and compensation component of this utility model;

[0019] Figure 3 is an enlarged schematic diagram of point A in Figure 2 of this utility model;

[0020] Figure 4 is a schematic diagram of the slot, insert rod and buffer pad of this utility model.

[0021] In the diagram: 1. Housing; 2. Electric telescopic rod; 3. Mounting rod; 4. Adjusting plate; 5. Slide groove; 6. Slider; 7. Temperature sensor; 8. Mounting block; 9. Laser rangefinder; 10. Vertical rod; 11. Spring; 12. Support rod; 13. Electromagnetic plate; 14. Slot; 15. Insert rod; 16. Buffer pad; 17. Inspection plate. Detailed Implementation

[0022] 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.

[0023] Referring to Figures 1-4, this utility model provides the following two technical solutions:

[0024] First implementation: An adjustable calibration device for thermal metrology testing includes a housing 1, an electric telescopic rod 2 on the housing 1, and an installation rod 3 connected to the output end of the electric telescopic rod 2 for driving the installation rod 3 to rise and fall. The installation rod 3 is powered by existing technology. An adjustment plate 4 with three sliding grooves 5 is provided on the installation rod 3. A slider 6 is slidably connected to the middle sliding groove 5, and two sliders 6 are slidably connected to the sliding grooves on both sides respectively. The bottom of each slider 6 is provided with a compensation component, and the bottom of each compensation component is provided with a temperature sensor 7. The compensation component includes a vertical rod 10 slidably connected to the bottom of the slider 6. The bottom of the vertical rod 10 is connected to the temperature sensor 7, and the temperature sensor 7 is provided with a spring 11 connected to the slider 6. The spring 11 can be replaced if it fails. When the temperature sensor 7 contacts the measuring hole and continues to move downward, it can be prevented from being squeezed and deformed at the bottom by the vertical rod 10 sliding in the slider 6 and the spring 11 being compressed.

[0025] A ranging component for measuring the distance between the temperature sensor 7 and the thermostat measuring hole is slidably connected to the central slide groove 5. The ranging component includes a mounting block 8 slidably connected to the central slide groove 5, so that the mounting block 8 can slide on the central slide groove 5 to align with the central measuring hole for measurement. After the measurement is completed, it can be removed. A laser rangefinder 9 is set at the bottom of the mounting block 8, and the bottom of the laser rangefinder 9 is higher than the bottom of the temperature sensor 7. This way, when the bottom of the temperature sensor 7 contacts the measuring hole, the laser rangefinder 9 will not also contact it. The distance that the temperature sensor 7 descends should be the measured distance minus the distance between the laser rangefinder 9 and the temperature sensor 7. However, since the laser rangefinder 9 generally has a certain error, this may cause the temperature sensor 7 to descend too much, resulting in compression deformation, or it may cause the temperature sensor 7 to descend too little, failing to fit tightly against the measuring hole. Therefore, it is necessary to add the error distance of the laser rangefinder to ensure that the bottom of the temperature sensor 7 fits tightly against the bottom of the measuring hole. A compensation component is also required to prevent the bottom of the temperature sensor 7 from being compressed or deformed.

[0026] The top of the slider 6 is connected to a fixing component, which is used to fix the slider 6 during lifting and lowering. The fixing component includes a support rod 12 set on the mounting rod 3. An electromagnet plate 13 with power on and off using existing technology is set on the support rod 12. The top of the slider 6 has a slot 14, and a plug rod 15 is slidably connected to the slot 14. The plug rod 15 is located below the electromagnet plate 13. The plug rod 15 is made of metal and can be attracted by the energized electromagnet plate 13, thereby fixing the plug rod 15 and preventing the slider 6 from sliding along the slide groove 5. This avoids the temperature sensor 7 from moving due to shaking during descent, thus ensuring that it can be aligned with the measuring hole below after descent.

[0027] To prevent excessive impact of the insertion rod 15 on the slider 6 after power failure, a buffer pad 16 is provided at the bottom of the inner wall of the slot 14.

[0028] The second implementation method differs from the first implementation method in that: a controller is provided on the housing 1, and the controller is electrically connected to the laser rangefinder 9 and the electric telescopic rod 2. A maintenance plate 17 is also provided on the housing 1.

[0029] Furthermore, all content not described in detail in this specification is existing technology known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used.

[0030] In use, firstly, the distance measuring component measures the distance to the measuring hole in the middle of the thermostat. Then, the distance measuring component is removed, and the positions of each slider 6 are adjusted so that each temperature sensor 7 is aligned with each hole of the thermostat. After adjustment, hold the slider 6 with one hand and move the insertion rod 15 with the other hand to make the insertion rod 15 adsorb and fix it on the electromagnet plate 13. Then, all the sliders 6 can be fixed in sequence. At this time, through the processing of the controller, the distance measured is subtracted from the distance between the laser rangefinder 9 and the temperature sensor 7, and then the error distance of the laser rangefinder 9 is added. This allows the electric telescopic rod 2 to drive the mounting rod 3 to move downward by this distance, thereby ensuring that the bottom of the temperature sensor 7 is in close contact with the bottom of the measuring hole. And through the compensation component, the bottom of the temperature sensor 7 will not be squeezed or deformed. Thus, the test can be started, and calibration is performed based on the test results. This has been disclosed in CN218156251U and will not be described in detail here.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[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. An adjustable calibration device for thermal metrology testing, characterized in that: The device includes a housing (1), on which an electric telescopic rod (2) is provided. The output end of the electric telescopic rod (2) is connected to a mounting rod (3). The mounting rod (3) is provided with an adjusting plate (4) with three sliding grooves (5). A slider (6) is slidably connected to the middle sliding groove (5), and two sliders (6) are slidably connected to the two side sliding grooves (5) respectively. The bottom of each slider (6) is provided with a compensation component, and the bottom of each compensation component is provided with a temperature sensor (7). A distance measuring component for measuring the distance between the temperature sensor (7) and the thermostat measuring hole is also slidably connected to the middle sliding groove (5). A fixing component is connected to the top of the slider (6), and the fixing component is used to fix the slider (6) during the lifting and lowering process.

2. The adjustable calibration device for thermal metrology testing according to claim 1, characterized in that: The ranging component includes a mounting block (8) slidably connected to the central groove (5), and a laser rangefinder (9) is provided at the bottom of the mounting block (8), with the bottom of the laser rangefinder (9) being higher than the bottom of the temperature sensor (7).

3. The adjustable calibration device for thermal metrology testing according to claim 1, characterized in that: The compensation component includes a vertical rod (10) that is vertically slidably connected to the bottom of the slider (6). The bottom of the vertical rod (10) is connected to the temperature sensor (7), and the temperature sensor (7) is provided with a spring (11) connected to the slider (6).

4. The adjustable calibration device for thermal metrology testing according to claim 1, characterized in that: The fixing assembly includes a support rod (12) set on the mounting rod (3), an electromagnet plate (13) is set on the support rod (12), a slot (14) is opened on the top of the slider (6), and a plug rod (15) is slidably connected to the slot (14). The plug rods (15) are all located below the electromagnet plate (13).

5. The adjustable calibration device for thermal metrology testing according to claim 4, characterized in that: A cushioning pad (16) is provided at the bottom of the inner wall of the slot (14).

6. The adjustable calibration device for thermal metrology testing according to claim 1, characterized in that: The housing (1) is equipped with a controller, which is electrically connected to a laser rangefinder (9) and an electric telescopic rod (2). The housing (1) is also equipped with a maintenance plate (17).

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