Calibration device for thermometer detection

Abstract

The calibration device comprises a box body, a contrast thermometer and a thermometer to be detected, the upper part of the inner cavity of the box body is provided with a fixing frame and a placing groove, the contrast thermometer and the thermometer to be detected are respectively clamped in the inner cavity of the placing groove, and the two sides of the top of the box body are symmetrically provided with vertical plates, sliding grooves and moving assemblies. A protective screen plate is movably clamped in the middle of an inner cavity of the box body, a stirring assembly is arranged on the lower portion of the side wall of the inner cavity of the box body, and an observation window is arranged on one side of the box body. According to the calibration device for thermometer detection, the stirring assembly, the protective screen plate, the moving assembly, the fixing assembly, the placing groove and the like are arranged, and a plurality of to-be-detected thermometers can be calibrated at the same time through the fixing assembly, so that the to-be-detected thermometers and a contrast thermometer are kept at the same height; the constant-temperature oil is stirred through the stirring assembly, so that the temperatures of all parts of the constant-temperature oil are the same, and the calibration accuracy is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of thermometer detection, in particular to a calibration device used for thermometer detection. Background Art

[0002] In order to prevent the thermometer from losing accuracy after long-term use, which would affect the reading of temperature data, it is often necessary to calibrate and test it regularly.

[0003] At present, the thermometer calibration method is generally to compare the thermometer under test with the upper-level standard thermometer, and place the thermometer under test and the standard thermometer in the same temperature environment for calibration. The conventional operation method in the laboratory is to place the thermometer under test and the standard thermometer in a constant temperature oil bath for calibration at the same time. However, the calibration process often requires manual calibration of the thermometer, which makes it difficult to calibrate multiple thermometers at the same time, and the efficiency is low. In addition, there is often a temperature difference between different liquid levels in the constant temperature oil bath, which easily leads to calibration errors. Therefore, we propose a new calibration device for thermometer detection. Utility Model Content

[0004] The main purpose of the utility model is to provide a calibration device for thermometer detection, which can effectively solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a calibration device for thermometer detection, including a box body, a reference thermometer, and a thermometer to be tested. A fixing frame is provided on the upper part of the inner cavity of the box body, and a plurality of through placement grooves are evenly opened on the fixing frame. The reference thermometer and the thermometer to be tested are respectively clamped in the inner cavity of the placement groove. Vertical plates are symmetrically fixedly connected to the top of the box body on both sides, and slide grooves are symmetrically opened on the opposite sides of the two vertical plates. The slide grooves extend to the side wall of the inner cavity of the box body, and the inner cavity of the slide groove is provided with a moving component. The moving assembly includes a motor 1, a threaded rod, and a moving block. The motor 1 is fixedly connected to the top of the vertical plate. The output end of the motor 1 passes through the inner cavity of the slide groove and is fixedly connected to the threaded rod. The bottom of the threaded rod is rotatably connected to the bottom of the inner cavity of the slide groove. The moving block is meshed and sleeved on the threaded rod. The two side walls of the fixed frame are respectively fixedly connected to the two side walls of the moving blocks. A protective mesh plate is movably connected to the middle part of the inner cavity of the box body. A stirring assembly is provided at the lower part of the side wall of the inner cavity of the box body, and the stirring assembly is located at the lower part of the protective mesh plate. An observation window is provided on one side of the box body.

[0006] As a further description of the above technical solution, non-through installation grooves are symmetrically opened on both sides of the placement groove, and a fixing component is provided in the inner cavity of the installation groove.

[0007] As a further description of the above technical solution, the fixing assembly includes a connecting plate, a connecting rod, an arc-shaped fixing plate, and a spring. The connecting plate is slidably connected to the inner cavity of the installation groove, one side of the connecting plate is fixedly connected to the connecting rod, the connecting rod passes through the inner cavity of the placement groove and is fixedly connected to the arc-shaped fixing plate, one side of the connecting plate is symmetrically fixedly connected to the spring, and the other end of the spring is fixedly connected to the inner cavity of the installation groove.

[0008] As a further description of the above technical solution, a through groove is opened on the side of the installation groove close to the placement groove, the connecting rod is slidably connected to the inner cavity of the through groove, and anti-slip rubber pads are provided on the opposite sides of the two arc-shaped fixing plates, and the two arc-shaped fixing plates are slidably fitted and connected to the side walls of the control thermometer and the thermometer to be tested.

[0009] As a further description of the above technical solution, the stirring assembly includes a second motor, a rotating rod, and a stirring spiral blade. The second motor is fixedly connected to the lower part of the side wall of the box body. The output end of the second motor passes through the inner cavity of the box body and is fixedly connected to the rotating rod. The other end of the rotating rod is rotatably connected to the side wall of the inner cavity of the box body, and the stirring spiral blade is fixedly sleeved on the rotating rod.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. By setting the stirring component, protective mesh plate, moving component, etc., when starting to calibrate the thermometer to be tested, first fix the thermometer to be tested and the control thermometer to the inner cavity of the placement slot of the fixed frame through the fixing component, and then start the motor 1 to drive the threaded rod to rotate and drive the moving block to move downward, so that the fixed frame, the thermometer to be tested and the control thermometer can be moved downward, so that the temperature measuring ends of the thermometer to be tested and the control thermometer are immersed in the constant temperature oil in the inner cavity of the box at the same time, and multiple thermometers to be tested and the control thermometer are kept at the same height to reduce the detection error caused by different liquid levels. At this time, start the motor 2 to drive the rotating rod and the stirring spiral blade to rotate, and stir the constant temperature oil, so that the constant temperature oil flows in the inner cavity of the box, ensuring that the temperature of each part of the constant temperature oil remains the same, and preventing the temperature difference between different liquid levels of the constant temperature oil, resulting in calibration errors. At the same time, set the protective mesh plate above the stirring component to prevent the moving component from lowering the thermometer to be tested and the control thermometer to too low a position, and the stirring spiral blade rotates to damage the thermometer to be tested and the control thermometer.

[0012] 2. When fixing the thermometer to be tested and the reference thermometer to the inner cavity of the placement slot of the fixing frame by setting fixing components, placement slots, etc., first place the thermometer to be tested or the reference thermometer from the placement slot between the two arc-shaped fixing plates. At this time, the side wall of the thermometer squeezes the arc-shaped fixing plate, thereby driving the connecting rod to move along the through slot to the inner cavity of the installation slot. At this time, the connecting plate is pushed to move in the inner cavity of the installation slot, and the connecting plate stretches the spring, and the spring generates a reaction force on the connecting plate. Under the action of this reaction force, the two arc-shaped fixing plates can firmly fix the thermometer in the inner cavity of the placement slot, thereby preventing the thermometer to be tested or the reference thermometer from sliding during the calibration process, resulting in inaccurate calibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a calibration device for thermometer detection proposed by the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of a calibration device for thermometer detection proposed by the utility model;

[0015] Figure 3 The utility model is a schematic diagram of the internal explosion structure of a calibration device for thermometer detection.

[0016] In the figure: 1. Box body; 2. Fixed frame; 3. Control thermometer; 4. Thermometer to be tested; 5. Vertical plate; 6. Slide; 7. Moving component; 8. Mounting slot; 9. Fixed component; 10. Through slot; 11. Stirring component; 12. Protective mesh plate; 13. Observation window; 14. Placement slot; 7.1. Motor 1; 7.2. Threaded rod; 7.3. Moving block; 9.1. Connecting plate; 9.2. Connecting rod; 9.3. Arc-shaped fixing plate; 9.4. Spring; 11.1. Motor 2; 11.2. Rotating rod; 11.3. Stirring spiral blade. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features and purpose effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the words "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0019] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] See also Figure 1-3 The utility model provides a technical solution: a calibration device for thermometer detection, including a box body 1, a reference thermometer 3, and a thermometer to be tested 4. A fixing frame 2 is provided on the upper part of the inner cavity of the box body 1, and a plurality of through placement grooves 14 are evenly opened on the fixing frame 2. The reference thermometer 3 and the plurality of thermometers to be tested 4 are respectively clamped in the inner cavity of the placement groove 14. Vertical plates 5 are symmetrically fixedly connected to the top of the box body 1 on both sides, and slide grooves 6 are symmetrically opened on the opposite sides of the two vertical plates 5. The slide grooves 6 extend to the side wall of the inner cavity of the box body 1. A moving component 7 is provided in the inner cavity of the slide groove 6. The moving component 7 includes a motor 7.1, a threaded rod 7.2, and a moving block 7.3. The motor 7.1 is fixedly connected to the top of the vertical plate 5. The output end of the motor 7.1 passes through the inner cavity of the slide groove 6 and is fixedly connected to the threaded rod 7.2. The bottom of the threaded rod 7.2 is connected to the bottom of the inner cavity of the slide groove 6. The two sides of the fixed frame 2 are respectively fixedly connected with the two side walls of the moving blocks 7.3, and the side walls of the fixed frame 2 are slidably connected with the side walls of the inner cavity of the box body 1. When the thermometer 4 to be tested is calibrated, the thermometer 4 to be tested and the reference thermometer 3 are respectively fixed to the inner cavity of the placement groove 14 of the fixed frame 2 through the fixing assembly 9, and then the motor 7.1 is started to drive the threaded rod 7.2 to rotate and thus drive the moving block 7.3 to move downward, so that the fixed frame 2, the thermometer 4 to be tested and the reference thermometer 3 can be moved downward, so that the temperature measuring ends of the thermometer 4 to be tested and the reference thermometer 3 are simultaneously immersed in the constant temperature oil in the inner cavity of the box body 1, and multiple thermometers to be tested 4 and the reference thermometer 3 are kept at the same height, reducing the detection error caused by different liquid levels. A protective mesh plate 12 is movably connected in the middle of the inner cavity of the box 1, and a stirring assembly 11 is provided at the lower part of the inner cavity side wall of the box 1, and the stirring assembly 11 is located below the protective mesh plate 12. The protective mesh plate 12 is set above the stirring assembly 11 to prevent the moving assembly 7 from lowering the position of the thermometer to be tested 4 and the reference thermometer 3 too low, and the stirring spiral blades 11.3 rotate to damage the thermometer to be tested 4 and the reference thermometer 3. An observation window 13 is provided on one side of the box 1 to observe the calibration process and facilitate timely processing when a fault occurs.

[0021] Specifically, Figure 1 , Figure 3As shown, the stirring assembly 11 includes a second motor 11.1, a rotating rod 11.2, and a stirring spiral blade 11.3. The second motor 11.1 is fixedly connected to the lower part of the side wall of the box body 1. The output end of the second motor 11.1 penetrates the inner cavity of the box body 1 and is fixedly connected to the rotating rod 11.2. The other end of the rotating rod 11.2 is rotatably connected to the inner cavity side wall of the box body 1 through the rotating rod. The rotating rod 11.2 is fixedly sleeved with a stirring spiral blade 11.3. When the temperature measuring ends of the to-be-tested thermometer 4 and the reference thermometer 3 are simultaneously immersed in the constant temperature oil in the inner cavity of the box body, the second motor 11.1 is started to drive the rotating rod 11.2 and the stirring spiral blade 11.3 to rotate, so as to stir the constant temperature oil, so that the constant temperature oil flows in the inner cavity of the box body 1, ensuring that the temperature of each part of the constant temperature oil remains the same, and preventing the temperature difference between different liquid levels of the constant temperature oil, which leads to calibration errors.

[0022] Specifically, Figure 3 As shown, non-through mounting grooves 8 are symmetrically opened on both sides of the placement groove 14, and a fixing assembly 9 is provided in the inner cavity of the mounting groove 8. The fixing assembly 9 includes a connecting plate 9.1, a connecting rod 9.2, an arc-shaped fixing plate 9.3, and a spring 9.4. The connecting plate 9.1 is slidably connected to the inner cavity of the mounting groove 8, a connecting rod 9.2 is fixedly connected to one side of the connecting plate 9.1, and the connecting rod 9.2 penetrates the inner cavity of the placement groove 14 and is fixedly connected to the arc-shaped fixing plate 9.3, a spring 9.4 is symmetrically fixedly connected to one side of the connecting plate 9.1, and the spring 9.4 is located on both sides of the connecting rod 9.2, and the other end of the spring 9.4 is fixedly connected to the inner cavity of the mounting groove 8. A through slot 10 is opened on one side of the mounting groove 8 close to the placement groove 14, and the connecting rod 9.2 is slidably connected to the inner cavity of the through slot 10, and an anti-slip rubber pad is provided on the opposite side of the two arc-shaped fixing plates 9.3 to increase the friction force and make the fixation more stable, and the two arc-shaped fixing plates 9.3 are slidably fitted and connected to the side walls of the control thermometer 3 and the thermometer to be tested 4. When fixing the thermometer to be tested 4 and the reference thermometer 3 to the inner cavity of the placement slot 14 of the fixing frame 2, first put the thermometer to be tested 4 or the reference thermometer 3 from the placement slot 14 between the two arc-shaped fixing plates 9.3. At this time, the side wall of the thermometer squeezes the arc-shaped fixing plate 9.3, thereby driving the connecting rod 9.2 to move along the through slot 10 to the inner cavity of the installation slot 8. At this time, the connecting plate 9.1 is pushed to move in the inner cavity of the installation slot 8. The connecting plate 9.1 stretches the spring 9.4, and the spring 9.4 generates a reaction force on the connecting plate 9.1. Under the action of this reaction force, the two arc-shaped fixing plates 9.3 can firmly fix the thermometer in the inner cavity of the placement slot 14, thereby preventing the thermometer to be tested 4 or the reference thermometer 3 from sliding during the calibration process, resulting in inaccurate calibration.

[0023] It should be noted that the utility model is a calibration device for thermometer detection. When the thermometer to be detected 4 is calibrated, the thermometer to be detected 4 and the control thermometer 3 are first fixed to the inner cavity of the placement slot 14 of the fixed frame 2 through the fixing assembly 9, and then the motor 1 7.1 is started to drive the threaded rod 7.2 to rotate and drive the moving block 7.3 to move downward, so that the fixed frame 2, the thermometer to be detected 4 and the control thermometer 3 can be moved downward, so that the temperature measuring ends of the thermometer to be detected 4 and the control thermometer 3 are simultaneously immersed in the constant temperature oil in the inner cavity of the box 1, and multiple thermometers to be detected 4 and the control thermometer 3 are kept at the same height, reducing the detection error caused by different liquid levels. At this time, the motor 2 11.1 is started to drive the rotating rod 11.2 and the stirring spiral blade 11.3 to rotate, so as to stir the constant temperature oil, so that the constant temperature oil flows in the inner cavity of the box 1, ensuring that the temperature of each part of the constant temperature oil remains the same, and preventing the temperature difference between different liquid levels of the constant temperature oil, resulting in calibration errors. At the same time, a protective mesh plate 12 is arranged above the stirring assembly 11 to prevent the moving assembly 7 from lowering the to-be-tested thermometer 4 and the reference thermometer 3 too low, and the stirring spiral blade 11.3 rotates to damage the to-be-tested thermometer 4 and the reference thermometer 3.

[0024] When fixing the thermometer to be tested 4 and the reference thermometer 3 to the inner cavity of the placement slot 14 of the fixing frame 2, first put the thermometer to be tested 4 or the reference thermometer 3 from the placement slot 14 between the two arc-shaped fixing plates 9.3. At this time, the side wall of the thermometer squeezes the arc-shaped fixing plate 9.3, thereby driving the connecting rod 9.2 to move along the through slot 10 to the inner cavity of the installation slot 8. At this time, the connecting plate 9.1 is pushed to move in the inner cavity of the installation slot 8. The connecting plate 9.1 stretches the spring 9.4, and the spring 9.4 generates a reaction force on the connecting plate 9.1. Under the action of this reaction force, the two arc-shaped fixing plates 9.3 can firmly fix the thermometer in the inner cavity of the placement slot 14, thereby preventing the thermometer to be tested 4 or the reference thermometer 3 from sliding during the calibration process, resulting in inaccurate calibration.

[0025] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A calibration device for thermometer detection, comprising a box (1), a reference thermometer (3), and a thermometer to be detected (4), characterized in that: A fixing frame (2) is provided at the upper part of the inner cavity of the box body (1), and a plurality of through placement grooves (14) are evenly opened on the fixing frame (2). The control thermometer (3) and the test thermometer (4) are respectively clamped in the inner cavity of the placement groove (14). Vertical plates (5) are symmetrically fixedly connected to the top of the box body (1) on both sides, and slide grooves (6) are symmetrically opened on the opposite sides of the two vertical plates (5). The slide grooves (6) extend to the side wall of the inner cavity of the box body (1). A moving component (7) is provided in the inner cavity of the slide groove (6). The moving component (7) includes a motor (7.1), a threaded rod (7.2), and a moving block (7.3). The motor (7.1) is fixedly connected to At the top of the vertical plate (5), the output end of the motor 1 (7.1) passes through the inner cavity of the slide groove (6) and is fixedly connected to a threaded rod (7.2); the bottom of the threaded rod (7.2) is rotatably connected to the bottom of the inner cavity of the slide groove (6); the moving block (7.3) is meshed and sleeved on the threaded rod (7.2); the two side walls of the fixed frame (2) are respectively fixedly connected to the side walls of the two moving blocks (7.3); a protective mesh plate (12) is movably connected to the middle of the inner cavity of the box body (1); a stirring component (11) is provided at the lower part of the inner cavity side wall of the box body (1), and the stirring component (11) is located at the lower part of the protective mesh plate (12); and an observation window (13) is provided on one side of the box body (1).

2. A calibration device for thermometer detection according to claim 1, characterized in that: Non-through installation grooves (8) are symmetrically formed on both sides of the placement groove (14), and a fixing component (9) is provided in the inner cavity of the installation groove (8).

3. A calibration device for thermometer detection according to claim 2, characterized in that: The fixing assembly (9) comprises a connecting plate (9.1), a connecting rod (9.2), an arc-shaped fixing plate (9.3), and a spring (9.4); the connecting plate (9.1) is slidably connected to the inner cavity of the mounting groove (8); one side of the connecting plate (9.1) is fixedly connected to the connecting rod (9.2); the connecting rod (9.2) penetrates into the inner cavity of the placement groove (14) and is fixedly connected to the arc-shaped fixing plate (9.3); one side of the connecting plate (9.1) is symmetrically fixedly connected to the spring (9.4); the other end of the spring (9.4) is fixedly connected to the inner cavity of the mounting groove (8).

4. A calibration device for thermometer detection according to claim 3, characterized in that: A through slot (10) is formed on one side of the installation slot (8) close to the placement slot (14); the connecting rod (9.2) is slidably connected to the inner cavity of the through slot (10); anti-slip rubber pads are provided on opposite sides of the two arc-shaped fixing plates (9.3); and the two arc-shaped fixing plates (9.3) are slidably connected to the side walls of the control thermometer (3) and the thermometer to be tested (4).

5. A calibration device for thermometer detection according to claim 1, characterized in that: The stirring assembly (11) comprises a second motor (11.1), a rotating rod (11.2), and a stirring spiral blade (11.3); the second motor (11.1) is fixedly connected to the lower part of the side wall of the box body (1); the output end of the second motor (11.1) passes through the inner cavity of the box body (1) and is fixedly connected to the rotating rod (11.2); the other end of the rotating rod (11.2) is rotatably connected to the inner cavity side wall of the box body (1); and the stirring spiral blade (11.3) is fixedly sleeved on the rotating rod (11.2).

Images