Thermostatic bath for calibrating thermometer
By designing a liquid level adjustment and spring clip structure for the pressure regulating chamber and calibration chamber in the constant temperature bath, the compatibility problem of thermometers of different lengths was solved, ensuring the accuracy of calibration.
Patent Information
- Application Number
- CN202422983244.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-04
AI Technical Summary
Existing thermometer calibration equipment cannot be adapted to thermometers of different lengths, especially shorter ones, leading to inaccurate calibration.
A constant temperature bath was designed, which includes a pressure regulating chamber and a calibration chamber. The constant temperature liquid level is regulated by an air pump, and the thermometer is clamped by a spring and a rubber layer to ensure that it does not move during the calibration process.
It enables adaptation to thermometers of different lengths, especially accurate calibration of short thermometers, avoiding errors caused by movement during the calibration process.
Smart Images
Figure CN223538431U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thermometer technology, specifically to a constant temperature bath for thermometer calibration. Background Technology
[0002] A thermometer calibration bath is a device used to ensure the accuracy of temperature measurement equipment, typically used in laboratories or production lines.
[0003] When using this device, place the thermometer to be calibrated into the constant temperature liquid in the constant temperature bath, and perform multiple measurements according to the steps, recording the values for each measurement. For example, remove the entire thermometer, wait for the liquid column to return to its natural position, and then perform a second measurement according to the steps. Perform three consecutive measurements and record the values for each measurement.
[0004] However, thermometers come in various lengths, and sometimes when a thermometer is inserted into a constant temperature bath, the measuring end of the thermometer cannot reach the constant temperature liquid. Although adding water can increase the liquid level, it can easily cause the temperature of the constant temperature liquid to change. Therefore, a constant temperature bath for thermometer calibration is proposed, which can adjust the liquid level in the constant temperature bath to easily adapt to thermometers of different lengths. Utility Model Content
[0005] To address the problems in the existing technology, this utility model provides a thermostat calibration bath, which allows for adjustment of the liquid level in the thermostat bath to easily adapt to thermometers of different lengths.
[0006] The technical solution adopted by this utility model to solve its technical problem is a thermostat calibration constant temperature bath, including a thermostat, a partition plate is fixedly connected to the inner top of the thermostat, the partition plate divides the chamber inside the thermostat into a pressure regulating chamber and a calibration chamber, the pressure regulating chamber and the calibration chamber are internally connected, and a thermostat liquid is provided inside the pressure regulating chamber and the calibration chamber.
[0007] An air pump is fixedly installed on the top of the constant temperature bath, and an air nozzle is provided at the bottom of the air pump. The air nozzle is sealed and inserted into the upper part of the pressure regulating chamber. A vent valve is sealed and installed at one end of the constant temperature bath. The vent valve is connected to the inside of the pressure regulating chamber. An observation window is provided on one side of the constant temperature bath at the calibration chamber.
[0008] By adopting the above technical solution, the air pump can pump the constant temperature liquid in the pressure regulating chamber into the calibration chamber, thereby raising the liquid level in the calibration chamber and making it possible to calibrate some shorter thermometers.
[0009] The spring clips can be used to clamp and fix the thermometer when it is inserted into the thermostatic bath, preventing the thermometer from moving during the calibration process and causing inaccurate calibration.
[0010] Specifically, the top of the constant temperature bath is provided with an exhaust pipe, which is connected to the interior of the calibration chamber.
[0011] By adopting the above technical solution, the exhaust pipe can accelerate the discharge of gas from the calibration chamber.
[0012] Specifically, the top of the constant temperature bath is provided with a through groove, and there are multiple through grooves. A spring is movably installed inside each through groove. Two springs are arranged opposite each other, and the springs are arranged in an arc shape.
[0013] Specifically, the inner wall of the through groove is provided with a limiting groove, and there are two limiting grooves opposite each other. The inner walls of the two limiting grooves are fixedly connected to one end of the spring. Both ends of the spring piece are located inside the limiting groove, and both ends of the spring piece are fixedly connected to the other end of the spring. The spring is provided in multiple places.
[0014] By adopting the above technical solution, both ends of the spring are locked in the limiting groove. When the thermometer is inserted into the constant temperature groove between the two springs in the through groove, the insertion of the thermometer will press the two springs in the through groove in a direction away from each other. The spring will be compressed by the springs and will give the springs a certain pressure, which can then clamp the thermometer.
[0015] Specifically, a rubber layer is fixedly provided on the outer arc of the spring piece, and a groove is formed on the outer side of the rubber layer.
[0016] By adopting the above technical solution, the rubber layer can prevent the spring from scratching the thermometer. When the thermometer is inserted between the two springs, it needs to be inserted vertically from the grooves of the two springs. The grooves can position the thermometer and prevent it from sliding back and forth between the two springs.
[0017] The beneficial effects of this utility model are:
[0018] (1) The thermostat calibration bath of the present invention can be used to pump the thermostat liquid in the pressure regulating chamber into the calibration chamber by setting an air pump, so that the level of the thermostat liquid in the calibration chamber is raised, and thus it can be used to calibrate some thermometers with relatively short length.
[0019] (2) The thermometer calibration constant temperature bath described in this utility model can clamp and fix the thermometer when it is inserted into the constant temperature bath by setting the spring, so as to avoid the thermometer moving during the calibration process and causing inaccurate calibration. Attached Figure Description
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0022] Figure 2 This is a schematic diagram of the planar structure of the present invention;
[0023] Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;
[0024] Figure 4 This is a schematic diagram of the spring clip structure of this utility model;
[0025] In the diagram: 1. Thermostatic bath; 2. Air pump; 3. Through groove; 4. Exhaust pipe; 5. Vent valve; 6. Thermostatic liquid; 7. Air nozzle; 8. Partition plate; 9. Limiting groove; 10. Spring; 11. Spring piece; 12. Rubber layer; 13. Groove; 14. Observation window; 15. Pressure regulating chamber; 16. Calibration chamber. Detailed Implementation
[0026] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0027] To allow for adjustment of the liquid level in the thermostatic bath and facilitate compatibility with thermometers of different lengths, as one embodiment of this utility model, such as... Figures 1-4 As shown, the thermostat calibration bath of this utility model includes a thermostat bath 1. A partition 8 is fixedly connected to the top of the thermostat bath 1. The partition 8 divides the chamber in the thermostat bath 1 into a pressure regulating chamber 15 and a calibration chamber 16. The pressure regulating chamber 15 and the calibration chamber 16 are internally connected. A thermostat liquid 6 is provided inside the pressure regulating chamber 15 and the calibration chamber 16.
[0028] An air pump 2 is fixedly installed on the top of the constant temperature bath 1. An air nozzle 7 is provided at the bottom of the air pump 2. The air nozzle 7 is sealed and inserted into the upper part of the pressure regulating chamber 15. A vent valve 5 is sealed and installed at one end of the constant temperature bath 1. The vent valve 5 is connected to the inside of the pressure regulating chamber 15. An observation window 14 is provided on one side of the constant temperature bath 1 at the calibration chamber 16.
[0029] When it is necessary to adjust the liquid level of the constant temperature liquid 6 in the constant temperature bath 1, the air pump 2 is started. The air pump 2 blows air into the pressure regulating chamber 15 through the air nozzle 7. If the air pressure inside the pressure regulating chamber 15 is too high, it will push the constant temperature liquid 6 in the pressure regulating chamber 15 into the calibration chamber 16. In this way, the liquid level of the constant temperature liquid 6 in the calibration chamber 16 will rise, and the liquid level of the constant temperature liquid 6 in the pressure regulating chamber 15 will drop. Some of the air in the calibration chamber 16 will be discharged from the passage 3 and the exhaust pipe 4, thus realizing the liquid level adjustment operation.
[0030] It should be noted that when the liquid level needs to be restored, simply open the vent valve 5 to make the air pressure in the pressure regulating chamber 15 match the air pressure in the calibration chamber 16. The observation window 14 is set so that the liquid level height inside the calibration chamber 16 can be directly seen.
[0031] The present invention also includes an exhaust pipe 4 at the top of the constant temperature bath 1, the exhaust pipe 4 being connected to the interior of the calibration chamber 16.
[0032] When in use, the exhaust pipe 4 can speed up the discharge of gas from inside the calibration chamber 16.
[0033] This utility model also includes a through groove 3 at the top of the constant temperature bath 1. The through groove 3 has multiple locations, and spring pieces 11 are movably installed inside each through groove 3. Two spring pieces 11 are arranged opposite each other, and the spring pieces 11 are arranged in an arc shape.
[0034] This utility model also includes a limiting groove 9 formed on the inner wall of the through groove 3. The limiting groove 9 is provided in two opposite places. The inner walls of the two limiting grooves 9 are fixedly connected to one end of the spring 10. Both ends of the spring piece 11 are provided inside the limiting groove 9. Both ends of the spring piece 11 are fixedly connected to the other end of the spring 10. The spring 10 is provided in multiple places.
[0035] When in use, both ends of the spring 11 are locked in the limiting groove 9. The thermometer is inserted into the constant temperature bath 1 through the two springs 11 in the through groove 3. The insertion of the thermometer will press the two springs 11 in the through groove 3 in a direction away from each other. The spring 10 will be pressed by the springs 11 and will give the springs 11 a certain pressure, which can clamp the thermometer.
[0036] The present invention also includes a rubber layer 12 fixedly disposed on the arc-shaped outer side of the spring piece 11, and a groove 13 is formed on the outer side of the rubber layer 12.
[0037] When in use, the rubber layer 12 can prevent the spring 11 from scratching the thermometer. When the thermometer is inserted between the two springs 11, it needs to be inserted vertically from the grooves 13 of the two springs 11. The grooves 13 can position the thermometer and prevent the thermometer from sliding back and forth between the two springs 11.
[0038] When this utility model is in use, if it is necessary to adjust the liquid level of the constant temperature liquid 6 in the constant temperature bath 1, the air pump 2 is started. The air pump 2 blows air into the pressure regulating chamber 15 through the air nozzle 7. If the air pressure inside the pressure regulating chamber 15 is too high, it will push the constant temperature liquid 6 in the pressure regulating chamber 15 into the calibration chamber 16. In this way, the liquid level of the constant temperature liquid 6 in the calibration chamber 16 will rise, and the liquid level of the constant temperature liquid 6 in the pressure regulating chamber 15 will drop. Some of the air in the calibration chamber 16 will be discharged from the through groove 3 and the exhaust pipe 4, thus realizing the liquid level adjustment operation. Then, the thermometer is inserted into the constant temperature bath 1 through the two spring pieces 11 in the through groove 3. The insertion of the thermometer will press the two spring pieces 11 in the through groove 3 in a direction away from each other. The spring 10 will be pressed by the spring pieces 11 and will give the spring pieces 11 a certain pressure, thereby clamping the thermometer. The groove 13 can position the thermometer and prevent the thermometer from sliding back and forth between the two spring pieces 11.
[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A thermostat calibration bath, comprising a thermostat bath (1), characterized in that, A partition (8) is fixedly connected to the top of the constant temperature bath (1). The partition (8) divides the chamber in the constant temperature bath (1) into a pressure regulating chamber (15) and a calibration chamber (16). The pressure regulating chamber (15) and the calibration chamber (16) are internally connected. The pressure regulating chamber (15) and the calibration chamber (16) are filled with a constant temperature liquid (6). An air pump (2) is fixedly installed on the top of the constant temperature bath (1). An air nozzle (7) is provided at the bottom of the air pump (2). The air nozzle (7) is sealed and inserted into the upper part of the pressure regulating chamber (15). A vent valve (5) is sealed and installed at one end of the constant temperature bath (1). The vent valve (5) is connected to the inside of the pressure regulating chamber (15). An observation window (14) is provided on one side of the constant temperature bath (1) at the calibration chamber (16).
2. The thermostat calibration bath according to claim 1, characterized in that, The top of the constant temperature bath (1) is provided with an exhaust pipe (4), which is connected to the interior of the calibration chamber (16).
3. The thermostat calibration bath according to claim 1, characterized in that, The constant temperature bath (1) has a through groove (3) at its top. There are multiple through grooves (3). Each through groove (3) has a movable spring piece (11) installed inside it. The spring pieces (11) are arranged in two opposite directions and are arranged in an arc shape.
4. A thermostat calibration bath according to claim 3, characterized in that, The inner wall of the through groove (3) is provided with a limiting groove (9). There are two limiting grooves (9) opposite each other. The inner walls of the two limiting grooves (9) are fixedly connected to one end of the spring (10). Both ends of the spring piece (11) are located inside the limiting groove (9). Both ends of the spring piece (11) are fixedly connected to the other end of the spring (10). The spring (10) is provided with multiple points.
5. A thermostat calibration bath according to claim 3, characterized in that, A rubber layer (12) is fixedly provided on the arc-shaped outer side of the spring piece (11), and a groove (13) is provided on the outer side of the rubber layer (12).