Automatic calibration device for industrial thermometer

Abstract

The utility model discloses an automatic calibration device for an industrial thermometer, and relates to the technical field of industrial thermometers. The device comprises a constant-temperature box, a box cover and a partition plate, the partition plate is arranged in the constant-temperature box, a plurality of through holes are formed in the partition plate in a penetrating mode, a plurality of clamping assemblies are arranged in the through holes in a rectangular mode, each clamping assembly comprises a movable plate which is movably arranged in the partition plate, and a movable groove allowing the movable plate to move is formed in the partition plate; a first spring abutting against the movable plate is arranged in the movable groove, the clamping plate is of an arc-shaped structure coaxial with the through hole, the clamping plate is fixedly connected with the end, away from the first spring, of the movable plate, and the clamping plate penetrates through the partition plate and is movably arranged on the partition plate. According to the utility model, the thermometers are clamped from multiple directions through the multiple groups of clamping assemblies, so that the thermometers can be stably placed in the thermotank, and the calibration precision is prevented from being influenced by factors such as shaking in the calibration process.

Description

Technical Field

[0001] This utility model belongs to the field of industrial thermometers, specifically, it relates to an automatic calibration device for industrial thermometers. Background Technology

[0002] In modern industrial production, temperature, as a key process parameter, plays a decisive role in product quality, production efficiency, and equipment safety. Whether in chemical, pharmaceutical, food processing, metallurgical, or power industries, high-precision thermometers are relied upon to monitor and control temperature changes during production. Therefore, ensuring the accuracy and reliability of thermometers is crucial. Traditional industrial thermometer calibration involves immersing a standard mercury thermometer and the bimetallic thermometer to be tested simultaneously in a constant-temperature heating or cooling chamber. This can cause the standard mercury thermometer and the bimetallic thermometer to be tested to shake in the constant-temperature bath, resulting in inaccurate calibration.

[0003] Chinese patent CN220729503U discloses an industrial thermometer calibration device. This device involves an operator inserting a bimetallic thermometer to be tested between two clamping plates and moving it downwards into a heating and cooling thermostatic bath. The clamping plates then hold the bimetallic thermometer in place by the spring's return force. The springs can clamp bimetallic thermometers of different diameters, preventing the thermometer from sliding within the thermostatic bath during calibration and thus improving accuracy and precision. The device is simple in structure and easy to operate. However, because the springs are suspended, the insertion of the thermometer into the through-slot may cause the clamping plates and springs to move downwards, resulting in misalignment of the clamping plates and reducing the clamping effect on the thermometer, thus affecting the calibration process.

[0004] In view of this, this utility model is hereby proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an automatic calibration device for industrial thermometers, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] An automatic calibration device for an industrial thermometer includes: a constant temperature chamber and a chamber cover, and a partition disposed inside the constant temperature chamber. The partition has multiple through holes, and multiple sets of clamping components are disposed within each of the through holes. The clamping components are arranged in a rectangular shape along the perimeter of the through holes. Each clamping component includes:

[0008] A movable plate is movably disposed within the partition, and the partition has a movable groove for the movable plate to move in, and a first spring is provided in the movable groove to abut against the movable plate;

[0009] The clamping plate is an arc-shaped structure coaxial with the through hole. The clamping plate is fixedly connected to the end of the movable plate opposite to the first spring. The clamping plate is movably disposed on the partition plate.

[0010] Optionally, the clamping plate has a guide end face that slopes downwards and a clamping end face that is vertically arranged, with the guide end face and the clamping end face arranged vertically.

[0011] Optionally, the partition plate is slidably provided with two sealing plates relative to the through hole. The sealing plates are arc-shaped and a clamping groove is defined between the two sealing plates. The clamping groove is disposed relative to the through hole. The partition plate is provided with an adjustment component for driving the two sealing plates to slide relative to each other.

[0012] Optionally, the adjustment component includes:

[0013] A gear is rotatably mounted on the partition plate, and two racks are slidably connected to the partition plate relative to the gear, the racks meshing with the gear;

[0014] Two connecting rods are fixedly connected at both ends to the two racks and the two sealing plates, respectively, and the two connecting rods are staggered.

[0015] Optionally, a sealing gasket is fixedly connected to one end of the sealing plate located in the clamping groove.

[0016] Optionally, a slider is fixedly connected to the bottom of the sealing plate, and a groove is provided on the partition plate for the slider to slide. The slider has a T-shaped structure, and a second spring is provided in the groove to abut against and be fixedly connected to the slider.

[0017] Optionally, the constant temperature chamber has multiple support plates fixedly connected to each other for supporting the partition, and the partition is detachably connected to the multiple support plates.

[0018] Optionally, a data acquisition module connected to a thermometer signal is fixedly installed on the constant temperature chamber, and a control and display device connected to the data acquisition module is provided on the constant temperature chamber.

[0019] Optionally, a handle is fixedly connected to the lid, and the lid is detachably connected to the constant temperature chamber via a snap fastener assembly.

[0020] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0021] By incorporating clamping components, multiple clamping components can hold the thermometer from multiple directions, ensuring its stable placement within the constant temperature chamber and preventing calibration accuracy from being affected by factors such as shaking during calibration. At the same time, the elasticity of the springs can automatically adjust the clamping force on the thermometer, ensuring a firm grip without damaging the thermometer.

[0022] By incorporating a sealing plate and an adjustment component, the through-hole can be sealed to a certain extent, reducing the possibility of external interference with the temperature field inside the constant temperature chamber, maintaining the stability of the temperature inside the constant temperature chamber, and thus improving the calibration accuracy.

[0023] The addition of a second spring provides a buffer and auxiliary reset function, facilitating the clamping and contact of the sealing plate with the thermometer at the opening, thus increasing the sealing performance.

[0024] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0025] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the internal structure of the constant temperature chamber when the lid of this utility model is opened;

[0028] Figure 3 This is a schematic diagram of the structure of the support plate of this utility model;

[0029] Figure 4 This utility model Figure 3 Front view;

[0030] Figure 5 This is a schematic diagram of the structure of the adjustment component of this utility model;

[0031] Figure 6 This is a schematic diagram of the clamping assembly of this utility model.

[0032] The attached diagram lists the components represented by each number as follows:

[0033] 1. Incubator; 2. Lid; 3. Handle; 4. Hook and latch assembly; 5. Control and display device; 6. Partition; 7. Data acquisition module; 8. Clamping assembly; 81. Movable plate; 82. Clamping plate; 821. Guide end face; 822. Clamping end face; 83. First spring; 84. Movable groove; 9. Adjustment assembly; 91. Connecting rod; 92. Gear; 93. Rack; 10. Support plate; 11. Sealing gasket; 12. Sealing plate; 13. Slide groove; 14. Through hole; 15. Slider; 16. Second spring; 17. Clamping groove.

[0034] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings.

[0036] Please see Figure 1-6 As shown, this embodiment provides an automatic calibration device for an industrial thermometer, including a constant temperature chamber 1 and a chamber cover 2, and a partition 6 disposed inside the constant temperature chamber 1. The partition 6 has multiple through holes 14, and multiple sets of clamping components 8 are disposed in each of the multiple through holes 14. The multiple sets of clamping components 8 are arranged in a rectangle along the perimeter of the through holes 14. The clamping components 8 include a movable plate 81, which is movably disposed inside the partition 6. The partition 6 has a movable groove 84 for the movable plate 81 to move. The movable groove 84 has a first spring 83 that abuts against the movable plate 81. The clamping plate 82 is an arc-shaped structure coaxial with the through holes 14. The clamping plate 82 is fixedly connected to the end of the movable plate 81 away from the first spring 83. The clamping plate 82 is disposed through and movably disposed on the partition 6.

[0037] Specifically, when calibrating an industrial thermometer, both the standard thermometer and the thermometer to be calibrated are inserted into the through hole 14. The thermometer presses against the clamping plate 82 in the clamping assembly 8, causing the movable plate 81 to compress the first spring 83 and move inward within the movable slot 84. Using the elastic force of the first spring 83, the movable plate 81 pushes the clamping plate 82 to firmly clamp the thermometer. This design can accommodate industrial thermometers of different sizes. By using multiple sets of clamping assemblies 8 to clamp the thermometer from multiple directions, it can ensure the stable placement of the thermometer in the constant temperature chamber 1 and avoid the calibration accuracy being affected by factors such as shaking during the calibration process. At the same time, the elasticity of the spring can automatically adjust the clamping force on the thermometer to ensure that the clamping is firm and will not damage the thermometer.

[0038] In this embodiment, as Figure 6As shown, the clamping plate 82 has a guide end face 821 that slopes downwards and a clamping end face 822 that is vertically arranged. The guide end face 821 and the clamping end face 822 are arranged vertically. Specifically, when the thermometer is inserted into the through hole 14, the guide end face 821 can guide the thermometer to be inserted more smoothly into the vertically arranged clamping end face 822. The clamping end face 822 is used to stably clamp the thermometer in the vertical direction. The guide end face 821 facilitates the insertion of the thermometer, reduces possible jamming or deviation during the insertion process, and improves the operating efficiency. The clamping end face 822 can ensure the stable clamping of the thermometer, further enhancing the stability of the thermometer in the constant temperature chamber 1, which is conducive to improving the accuracy of calibration.

[0039] In this embodiment, as Figure 3 , Figure 5 and Figure 6 As shown, two sealing plates 12 are slidably mounted on the partition 6 relative to the through hole 14. The sealing plates 12 have an arc-shaped structure, and a clamping groove 17 is defined between the two sealing plates 12. The clamping groove 17 is positioned relative to the through hole 14. The partition 6 is provided with an adjustment assembly 9 for driving the two sealing plates 12 to slide relative to each other. The adjustment assembly 9 includes a gear 92, which is rotatably mounted on the partition 6. Two racks 93 are slidably connected to the partition 6 relative to the gear 92, and the racks 93 mesh with the gear 92. Two connecting rods 91 are connected at their ends respectively. The assembly is fixedly connected to two racks 93 and two sealing plates 12. The two connecting rods 91 are staggered. Specifically, by pulling one of the connecting rods 91, the rack 93 is driven to slide along the partition 6, thereby causing the other rack 93 to move relative to it, thus realizing the relative movement of the two sealing plates 12. By adjusting the assembly 9 and the sealing plates 12, the through hole 14 can be sealed to a certain extent, reducing the possibility of external interference to the temperature field inside the constant temperature chamber 1, maintaining the stability of the temperature inside the constant temperature chamber 1, and thus improving the calibration accuracy.

[0040] In this embodiment, as Figure 6 As shown, a sealing gasket 11 is fixedly connected to one end of the sealing plate 12 located in the clamping groove 17. Specifically, when the sealing plate 12 clamps the thermometer in the clamping groove 17, the sealing gasket 11 can fill the gap between the sealing plate 12 and the thermometer, further enhancing the sealing effect on the through hole 14, better preventing heat loss in the constant temperature chamber 1 or the entry of cold air from the outside, ensuring the stability of the temperature field in the constant temperature chamber 1, providing a more stable temperature environment for thermometer calibration, and helping to improve the accuracy of calibration results.

[0041] In this embodiment, as Figure 5 and Figure 6As shown, a slider 15 is fixedly connected to the bottom of the sealing plate 12. The partition plate 6 is provided with a groove 13 for the slider 15 to slide. The slider 15 has a T-shaped structure. A second spring 16 is provided in the groove 13 to abut against and be fixedly connected to the slider 15. Specifically, when the sealing plate 12 is driven to slide by the adjusting component 9, the slider 15 slides in the groove 13. The second spring 16 can provide a certain buffer and auxiliary reset function, so as to facilitate the sealing plate 12 to clamp and fit the thermometer at the opening, thereby increasing the sealing performance.

[0042] In this embodiment, as Figure 3 and Figure 4 As shown, there are multiple support plates 10 fixedly connected inside the constant temperature chamber 1 for supporting the partition 6. The partition 6 is detachably connected to the multiple support plates 10. Specifically, the support plates 10 facilitate the maintenance and upkeep of the equipment.

[0043] In this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a data acquisition module 7 connected to a thermometer signal is fixedly installed on the constant temperature chamber 1. A control display device 5 connected to the data acquisition module 7 is also installed on the constant temperature chamber 1. Specifically, the data acquisition module 7 fixedly installed on the constant temperature chamber 1 is connected to the thermometer signal and can collect the signal data output by the thermometer under different temperature environments inside the constant temperature chamber 1 in real time. The data acquisition module 7 transmits the collected data to the control display device 5 connected to it. The control display device 5 analyzes and processes the data and displays relevant calibration information. It should be noted that the connection lines and working principles between the data acquisition module 7, the thermometer, and the control display device 5 are existing technologies and will not be described here.

[0044] In this embodiment, as Figure 1 , Figure 2 and Figure 3 As shown, a handle 3 is fixedly connected to the lid 2, and the lid 2 and the constant temperature chamber 1 are detachably connected by a buckle assembly 4.

[0045] Working principle:

[0046] When calibrating an industrial thermometer, pulling one of the connecting rods 91 causes the rack 93 to slide along the partition 6, thereby moving the other rack 93 relative to it. This causes the two sealing plates 12 to move away from each other, allowing the slider 15 to press against the second spring 16. Then, both the standard thermometer and the thermometer to be calibrated are inserted into the through hole 14. The thermometer presses against the clamping plate 82 in the clamping assembly 8, causing the movable plate 81 to compress the first spring 83 and move inward within the movable groove 84. Using the elastic force of the first spring 83, the movable plate 81 pushes the clamping plate. 82 clamps the thermometer tightly. This design can accommodate industrial thermometers of different sizes. After the thermometer is clamped and fixed, the rack 93 is released. At this time, the sealing plate 12 is reset under the action of the second spring 16, realizing the blocking and sealing of the through hole 14. By clamping the thermometer from multiple directions through multiple sets of clamping components 8, the thermometer can be stably placed in the constant temperature chamber 1, avoiding the impact of factors such as shaking on the calibration accuracy during the calibration process. At the same time, the elasticity of the spring can automatically adjust the clamping force on the thermometer to ensure that the clamping is firm and will not damage the thermometer.

[0047] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. An industrial thermometer automatic calibration device, comprising a thermostat (1) and a box cover (2), characterized in that: a partition plate (6) is arranged in the thermostat (1), a plurality of through holes (14) are arranged on the partition plate (6), a plurality of groups of clamping assemblies (8) are arranged in the plurality of through holes (14), a plurality of groups of the clamping assemblies (8) are arranged along the perimeter of the through hole (14), and the clamping assembly (8) comprises: a movable plate (81) movably arranged in the partition plate (6), a movable groove (84) is arranged in the partition plate (6) for the movable plate (81), and a first spring (83) is arranged in the movable groove (84) and abuts against the movable plate (81); a clamping plate (82) is an arc structure coaxial with the through hole (14), the clamping plate (82) is fixedly connected with one end of the movable plate (81) away from the first spring (83), and the clamping plate (82) is arranged on the partition plate (6) in a penetrating and movable manner. The clamping plate (82) has a guide end surface (821) inclined from top to bottom and a clamping end surface (822) arranged vertically, and the guide end surface (821) and the clamping end surface (822) are arranged in an up-down manner. Two sealing plates (12) are arranged on the partition plate (6) and slide relative to the through hole (14), the sealing plates (12) are arc structures, and a clamping groove (17) is defined between the two sealing plates (12), the clamping groove (17) is arranged relative to the through hole (14), and an adjusting assembly (9) is arranged on the partition plate (6) to drive the two sealing plates (12) to slide relative to each other. The adjusting assembly (9) comprises:

2. An apparatus for automatic calibration of industrial thermometers according to claim 1, characterized in that, a gear (92) rotatably arranged on the partition plate (6), two racks (93) are slidably connected to the partition plate (6) relative to the gear (92), and the racks (93) are engaged with the gear (92); 3. An apparatus for automatic calibration of industrial thermometers according to claim 1, characterized in that, two connecting rods (91) having two ends fixedly connected with the two racks (93) and the two sealing plates (12), respectively, and the two connecting rods (91) are arranged in a staggered manner.

4. An apparatus for automatic calibration of industrial thermometers according to claim 3, characterized in that A sealing gasket (11) is fixedly connected to one end of the sealing plate (12) located in the clamping groove (17). A sliding block (15) is fixedly connected to the bottom of the sealing plate (12), a sliding groove (13) is arranged on the partition plate (6) for the sliding block (15) to slide, the sliding block (15) is a T-shaped structure, and a second spring (16) is arranged in the sliding groove (13) and abuts against and is fixedly connected with the sliding block (15). A plurality of supporting plates (10) for supporting the partition plate (6) are fixedly connected in the thermostat (1), and the partition plate (6) is detachably connected to the plurality of supporting plates (10).

5. An apparatus for automatic calibration of industrial thermometers according to claim 3, characterized in that, A data acquisition module (7) connected with a thermometer signal is fixedly installed on the thermostat (1), and a control display device (5) connected with the data acquisition module (7) is arranged on the thermostat (1).

6. An apparatus for automatic calibration of industrial thermometers according to claim 4, characterized in that, ​ 7. An apparatus for automatic calibration of industrial thermometers according to claim 1, characterized in that, ​ 8. An apparatus for automatic calibration of industrial thermometers according to claim 7, characterized in that ​ 9. An apparatus for automatic calibration of industrial thermometers according to claim 1, characterized in that, A handle (3) is fixedly connected to the box cover (2), and the box cover (2) is detachably connected with the thermostat (1) through a buckle assembly (4).

Images