A temperature metrology calibration device

Abstract

The utility model relates to temperature measurement calibration technical field, especially, relates to a temperature measurement calibration device, including dry well furnace, dry well furnace is installed on the removal dolly, be provided with height adjusting mechanism on the removal dolly, be provided with fine adjustment mechanism on height adjusting mechanism, be provided with the fixed disc for fixing temperature probe on fine adjustment mechanism. Compared with prior art, can keep temperature probe position stable in the measurement calibration process, avoided the operation of manual holding temperature probe, guaranteed the measurement calibration result accurate.

Description

Technical Field

[0001] This utility model relates to the field of temperature measurement and calibration technology, and in particular to a temperature measurement and calibration device. Background Technology

[0002] Dry well temperature calibration furnaces are commonly used temperature calibration instruments in metrology and calibration, and are divided into dry and wet dry well furnaces. Dry well temperature calibration furnaces are also known as dry well furnaces. Dry wells are portable, have rapid heating and cooling rates, and are the most traditional on-site heat source (temperature field). They are widely used in industries requiring on-site temperature probe calibration, such as pharmaceuticals (GMP moist heat sterilization, dry heat sterilization), biological products, power plants and substations, steel mills, metrology and testing, and scientific research.

[0003] Dry well furnaces generate a stable and uniform temperature field within a specific environment for accurate calibration of devices such as temperature transmitters and thermometers. The working principle involves heating or cooling a metal block to a set temperature and maintaining that temperature uniformly and stably. The heated metal block acts as a medium, providing an adjustable, controllable, uniform, and stable reference temperature field for the measured sensor, thus enabling calibration. Dry well furnaces typically have several insertion ports of different inner diameters at the top. During temperature calibration, the temperature probe is inserted into the furnace cavity through the corresponding port, maintaining a stable insertion position.

[0004] Current technology requires manual hand-held operation of the temperature probe during measurement, which cannot guarantee a complete and stable probe position, resulting in inaccurate calibration measurement results. It is also labor-intensive and inconvenient to operate. In addition, the dry well furnace itself is heavy and inconvenient to carry, and manual carrying consumes a lot of physical strength when the daily calibration workload is large. Utility Model Content

[0005] To address the problem that manual operation cannot guarantee stable probe position, thus affecting calibration results, this invention provides a temperature measurement calibration device.

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

[0007] The utility model provides a temperature measurement calibration device, including dry well furnace, dry well furnace is installed on the mobile trolley, be provided with height adjusting mechanism on the mobile trolley, be provided with fine adjustment mechanism on height adjusting mechanism, be provided with the fixed disc for fixing temperature probe on fine adjustment mechanism, when using, install temperature probe on fixed disc, utilize height adjusting mechanism to drive temperature probe to drop, utilize fine adjustment mechanism to aim at the corresponding insertion port on dry well furnace with temperature probe, then utilize height adjusting mechanism to drive temperature probe to drop to dry well furnace, can keep temperature probe position stable during measurement and calibration process, avoids the operation of artificial holding temperature probe, guarantees the measurement and calibration result accurate, the setting of mobile trolley, the temperature measurement calibration device of convenient movement is provided, improves the convenience.

[0008] Preferably, the fixed disc is provided with a plurality of fixing holes; the inner diameters of the fixing holes are different; the fixing holes and the temperature probe are in interference fit; the side wall of the fixed disc is connected with the fine adjustment mechanism. The installation of temperature probes of different specifications on the fixed disc is facilitated.

[0009] Preferably, the fine adjustment mechanism comprises a connecting rod; one end of the connecting rod is hingedly connected with the side wall of the fixed disc, and the other end of the connecting rod is hingedly connected with a connecting seat; the connecting seat is installed on the height adjusting mechanism. The hingedly connected ends of the connecting rod can improve the range of position adjustment of the fixed disc, and facilitate the alignment of the temperature probe on the fixed disc with the corresponding insertion port.

[0010] Preferably, the connecting rod is provided with a ball head at each end; the fixed disc and the connecting seat are respectively provided with a ball head groove matched with the ball head of the connecting rod; the ball head and the ball head groove are in interference fit. The position adjustment range of the fixed disc is ensured, and the stability of the position of the fixed disc is ensured.

[0011] Preferably, the height adjusting mechanism comprises a lifting assembly and a mounting rod; the lifting assembly is arranged on the mobile trolley; the mounting rod is arranged on the lifting assembly; one end of the mounting rod is fixedly connected with the connecting seat. The lifting assembly can drive the mounting rod to lift, and then drive the temperature probe to lift.

[0012] Preferably, the lifting assembly comprises a fixed part; the fixed part is arranged on the mobile trolley; a lifting part is installed on the fixed part; the mounting rod is installed on the lifting part.

[0013] Preferably, the fixing part is a round rod; one end of the round rod is fixed on the moving trolley; the lifting part is a round rod; two radial through holes perpendicular to the center line are arranged on the round rod in the radial direction; an axial threaded through hole is arranged on the round rod in the axial direction, the round rod is inserted into one of the radial through holes, and the axial threaded through hole is provided with a first bolt at one end matched with the round rod; the mounting rod is inserted into the other radial through hole, and the axial threaded through hole is provided with a second bolt at the other end matched with the mounting rod. The round rod can slide up and down on the round rod and be fixed on the round rod by the first bolt. The mounting rod can slide on the round rod to adjust the length of the mounting rod extending out and be fixed on the round rod by the second bolt. The arrangement of the round rod can also enable the round rod to rotate in a plane perpendicular to the axis of the round rod, thereby increasing the adjustment range of the position of the temperature probe.

[0014] The above technical scheme can see that the advantages of the utility model include:

[0015] 1. By arranging the height adjusting mechanism and the fine adjustment mechanism, the temperature probe is installed on the fixed disc during use, the height adjusting mechanism is used to drive the temperature probe to descend, the fine adjustment mechanism is used to aim the temperature probe at the corresponding insertion port on the dry well furnace, and then the height adjusting mechanism is used to drive the temperature probe to descend into the dry well furnace, so that the position of the temperature probe can be kept stable during the metering and calibration process, manual holding of the temperature probe is avoided, and the metering and calibration result is ensured to be accurate. The arrangement of the moving trolley facilitates movement of the temperature metering and calibration device and improves convenience.

[0016] 2. By arranging the round rod and the round rod, the round rod can slide up and down on the round rod and be fixed on the round rod by the first bolt. The mounting rod can slide on the round rod to adjust the length of the mounting rod extending out and be fixed on the round rod by the second bolt. The arrangement of the round rod can also enable the round rod to rotate in a plane perpendicular to the axis of the round rod, thereby increasing the adjustment range of the position of the temperature probe. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the utility model, the following will briefly introduce the drawings needed to be used in the description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0018] Figure 1 It is a structural schematic view of the utility model.

[0019] MAIN REFERENCE NUMERALS

[0020] 1-dry well furnace, 2-moving trolley, 3-temperature probe, 4-fixed disc, 5-connecting rod, 6-connecting seat, 7-mounting rod, 8-fixing part, 9-lifting part; 101-insertion port; 401-fixing hole. Detailed Implementation

[0021] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0022] like Figure 1 As shown, a temperature measurement and calibration device includes a dry well furnace 1, which is mounted on a mobile trolley 2. The mobile trolley 2 facilitates the movement of the temperature measurement and calibration device, improving its convenience. The mobile trolley 2 is equipped with a height adjustment mechanism, which includes a lifting component and a mounting rod 7. The lifting component is mounted on the mobile trolley 2. One end of the mounting rod 7 is fixedly connected to a fine-tuning mechanism, which has a fixing disc 4 for fixing a temperature probe 3. The lifting component includes a fixing part 8, which is mounted on the mobile trolley 2. A lifting part 9 is mounted on the fixing part 8, and the mounting rod 7 is mounted on the lifting part 9. The lifting component can be used to raise and lower the mounting rod 7, thereby raising and lowering the fine-tuning mechanism.

[0023] In this embodiment, the fixing part 8 is a round rod; one end of the round rod is fixed to the moving trolley 2; the lifting part 9 is a round bar; the round bar has two radial through holes perpendicular to its center line; the round bar has an axial threaded through hole along its axis, and the round rod is inserted into one of the radial through holes, with a first bolt fitted at one end of the axial threaded through hole; the mounting rod 7 is inserted into the other radial through hole, with a second bolt fitted at the other end of the axial threaded through hole. The round bar can slide and rise on the round rod and is fixed to the round rod by the first bolt. The mounting rod 7 can slide on the round rod to adjust its extension length on the round rod and is fixed to the round rod by the second bolt. The round rod also allows the round rod to rotate in a plane perpendicular to its axis, increasing the adjustment range of the temperature probe 3 position.

[0024] In other alternative embodiments, the fixing part 8 includes a ball screw, one end of which is rotatably mounted on the moving trolley 2, and the end of the ball screw passes through the panel of the moving trolley 2. The end of the ball screw is provided with a hexagonal frustum, which can be rotated by using a wrench. The lifting part 9 includes a nut for the ball screw, and a plate is fixedly mounted on the nut. The plate is provided with a through hole, the axis of which is perpendicular to the axis of the ball screw. The plate is provided with a threaded hole, which is radially arranged along the through hole and connects to the through hole. The mounting rod 7 is inserted into the through hole and can be fixed by a bolt provided in the threaded hole.

[0025] The fine adjustment mechanism comprises a connecting rod 5 in the embodiment. One end of the connecting rod 5 is hingedly fixed to the side wall of the fixed disc 4, and the other end of the connecting rod 5 is hingedly connected to the connecting seat 6. The bottom surface of the connecting seat 6 is welded to the end of the mounting rod 7 of the height adjustment mechanism. The hingedly connected two ends of the connecting rod 5 can improve the range of position adjustment of the fixed disc 4, and facilitate the alignment of the temperature probe 3 on the fixed disc 4 with the corresponding insertion port 101. The two ends of the connecting rod 5 are provided with ball heads. The fixed disc 4 and the connecting seat 6 are respectively provided with ball head grooves matched with the ball heads of the connecting rod 5. The ball heads and the ball head grooves are in interference fit, which ensures the range of position adjustment of the fixed disc 4 and the stability of the position of the fixed disc 4.

[0026] In other alternative embodiments, the fine adjustment mechanism comprises a flexible rod. The two ends of the flexible rod are provided with external threads, and the side wall of the fixed disc 4 is provided with internal thread grooves. One end of the flexible rod is threadedly connected to the fixed disc 4. The connecting seat 6 is also provided with internal thread grooves matched with the flexible rod, and the other end of the flexible rod is threadedly connected to the connecting seat 6.

[0027] In the embodiment, the fixed disc 4 is provided with a plurality of fixed holes 401. The inner diameters of the plurality of fixed holes 401 are different. The fixed holes 401 are in interference fit with the temperature probe 3. The side wall of the fixed disc 4 is connected to the fine adjustment mechanism. This facilitates the installation of temperature probes 3 of different specifications on the fixed disc 4.

[0028] In use, the temperature probe 3 is installed in the corresponding fixed hole 401 of the fixed disc 4. The first bolt is loosened, the lifting part 9 is rotated in the plane perpendicular to the fixed part 8, i.e. the axis of the circular rod, the position of the temperature probe 3 is adjusted to above the dry well furnace 1, and the height of the lifting part 9 on the fixed part 8 is adjusted at the same time, so that the temperature probe 3 is lowered to above the plurality of insertion ports 101. The first bolt is tightened to fix the lifting part 9 on the fixed part 8. Then, the second bolt is loosened, the extension length of the mounting rod 7 in the lifting part 9 is adjusted, and the temperature probe 3 is ensured to be arranged above the plurality of insertion ports 101. After that, the position of the fixed disc 4 is adjusted by the hingedly connected connecting rod 5, so that the temperature probe 3 on the fixed disc 4 is aligned with the corresponding insertion port 101, and the end of the temperature probe 3 is inserted into the insertion port 101. Then, the first bolt is loosened, the temperature probe 3 is inserted into the dry well furnace 1 by lifting the lifting part 9, and the first bolt is tightened. This can ensure the stability of the position of the temperature probe 3 during the measurement and calibration process, avoid manual holding of the temperature probe 3, and ensure the accuracy of the measurement and calibration results.

[0029] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A temperature metrology calibration apparatus comprising a dry well furnace (1), characterized in that, The dry well furnace (1) is installed on the moving trolley (2); the moving trolley (2) is provided with a height adjusting mechanism; the height adjusting mechanism is provided with a fine adjustment mechanism; the fine adjustment mechanism is provided with a fixing disc (4) for fixing the temperature probe (3).

2. The temperature metrology calibration device of claim 1, wherein, The fixing disc (4) is provided with a plurality of fixing holes (401); the inner diameters of the fixing holes (401) are different; the fixing holes (401) and the temperature probe (3) are in interference fit; the side wall of the fixing disc (4) is connected with the fine adjustment mechanism.

3. The temperature metrology calibration device of claim 2, wherein, The fine adjustment mechanism comprises a connecting rod (5); one end of the connecting rod (5) is hingedly connected with the side wall of the fixing disc (4), and the other end of the connecting rod (5) is hingedly connected with a connecting seat (6); the connecting seat (6) is installed on the height adjusting mechanism.

4. The temperature metrology calibration device of claim 3, wherein, Both ends of the connecting rod (5) are provided with ball heads; the fixing disc (4) and the connecting seat (6) are respectively provided with ball head grooves matched with the ball heads of the connecting rod (5); the ball heads and the ball head grooves are in interference fit.

5. The temperature metrology calibration device of claim 4, wherein, The height adjusting mechanism comprises a lifting assembly and a mounting rod (7); the lifting assembly is arranged on the moving trolley (2); the mounting rod (7) is arranged on the lifting assembly; one end of the mounting rod (7) is fixedly connected with the connecting seat (6).

6. The temperature metrology calibration device of claim 5, wherein, The lifting assembly comprises a fixed part (8); the fixed part (8) is arranged on the moving trolley (2); the fixed part (8) is provided with a lifting part (9); the mounting rod (7) is installed on the lifting part (9).

7. The temperature metrology calibration device of claim 6, wherein, The fixed part (8) is a round rod; one end of the round rod is fixedly connected with the moving trolley (2); the lifting part (9) is a round bar; two radial through holes perpendicular to the center line are arranged on the round bar in the radial direction; an axial threaded through hole is arranged on the round bar in the axial direction, the round rod is inserted into one of the radial through holes, a first bolt is arranged at one end of the axial threaded through hole matched with the round rod; the mounting rod (7) is inserted into the other radial through hole, a second bolt is arranged at the other end of the axial threaded through hole matched with the mounting rod (7).

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