A cryogenic thermometer for ease of calibration installation

Abstract

The utility model relates to temperature measurement technical field discloses a low temperature thermometer convenient to calibrate installation, including measurement line and watch case, one end of measurement line is provided with recovery mechanism, recovery mechanism includes sliding block, the inside of sliding block is provided with cylinder, the outside of cylinder is equipped with measurement line. In the utility model, through the design of sliding block, cylinder, connecting rod, plug -in post, moving rod structure, in the temperature measurement process, the cylinder is driven to rotate through rotating moving rod, the measurement line of cylinder outside carries out the line laying in rotating, in the line laying process of measurement line, the torsional spring rotation of cylinder is located in the inside connection of sliding block, produces certain resistance, when the line laying is to the suitable length, needs the plug -in post to fix the connecting rod in the outside of sliding block, when the temperature measurement is completed and draws out the plug -in post, under the action of torsional spring, the cylinder rotates independently, can quickly roll up the unfolded measurement line, reduces the time of taking -up.

Description

Technical Field

[0001] This utility model relates to the field of temperature measurement technology, and in particular to a low-temperature thermometer that is easy to calibrate and install. Background Technology

[0002] Currently, cryogenic thermometers are widely used for temperature measurement in low-temperature environments, especially in scientific research, laboratories, and industrial fields. To ensure the accuracy and stability of thermometers, they typically require regular calibration and installation. Traditional cryogenic thermometers generally use mechanical structures in conjunction with sensors for measurement; however, in practical use, the calibration process for these devices is often complex, leading to inconvenience in operation and insufficient accuracy, thus affecting the effectiveness of the equipment.

[0003] Existing low-temperature thermometers typically consist of a housing and a measuring cable connected to it. A measuring mechanism is mounted at one end of the measuring cable to achieve accurate temperature measurement during the measurement process. The design of the retraction mechanism allows the measuring cable to be retracted and extended for easy use and storage.

[0004] However, while existing low-temperature thermometers possess certain measurement functions, they still have some shortcomings in practical use and calibration. Firstly, the recovery mechanisms of traditional devices often employ simple mechanical devices, which can easily lead to uneven shrinkage of the measuring wire or cumbersome operation. Their structures typically lack mechanisms for fine-grained control of the measuring wire, making it difficult to meet the stability requirements of precision measurements. Secondly, existing thermometers suffer from complex or inconvenient operation during calibration, especially when frequent probe adjustments or disassembly are required, posing significant operational difficulties for users.

[0005] To address the above problems, a low-temperature thermometer that is easy to calibrate and install is proposed. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a low-temperature thermometer that is easy to calibrate and install, aiming to improve the problem of uneven shrinkage of the measuring line in existing low-temperature thermometers.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a low-temperature thermometer that is easy to calibrate and install, comprising a measuring wire and a housing, wherein one end of the measuring wire is provided with a retrieval mechanism, the retrieval mechanism includes a sliding block, a cylinder is provided inside the sliding block, the measuring wire is sleeved on the outside of the cylinder, a torsion spring is provided inside the sliding block, a connecting rod is fixedly connected to the front end of the cylinder, a insert is provided inside the connecting rod, a moving rod is rotatably connected to the end of the connecting rod away from the cylinder, and a fixing mechanism is provided at the end of the measuring wire away from the housing.

[0008] As a further description of the above technical solution:

[0009] The measuring mechanism includes a probe rod, a clamping bolt 1 is provided between the probe rod and the connecting rod, a fixed cylindrical block is rotatably connected to the connecting rod, a clamping bolt 2 is provided between the connecting rod and the fixed cylindrical block, and a sensor connecting rod is fixedly connected to one end of the fixed cylindrical block.

[0010] As a further description of the above technical solution:

[0011] The outer side of the cylinder is rotatably connected to the inside of the sliding block, and the rear end of the cylinder is fixedly connected to one end of the torsion spring.

[0012] As a further description of the above technical solution:

[0013] A display screen is mounted on the top of the watch case.

[0014] As a further description of the above technical solution:

[0015] The insert penetrates the connecting rod and is inserted into the interior of the sliding block. As a further description of the above technical solution:

[0016] A ring is fixedly connected to one end of the movable rod.

[0017] As a further description of the above technical solution:

[0018] Both the probe rod and the connecting rod have threads at their opposite ends, and the clamping bolt is threaded between their outer sides.

[0019] As a further description of the above technical solution:

[0020] Both the connecting rod and the fixed cylindrical block have threads at their opposite ends, and the clamping bolt is threaded between the two outer sides.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, through the design of a sliding block, cylinder, connecting rod, insert post, and moving rod structure, the cylinder is rotated by rotating the moving rod during the temperature measurement process. During the rotation, the measuring line on the outside of the cylinder is unloaded. During the unloading of the measuring line, the torsion spring connected inside the cylinder to the sliding block rotates, generating a certain resistance. When the line is unloaded to a suitable length, the insert post is needed to fix the connecting rod to the outside of the sliding block. After the temperature measurement is completed, the insert post is pulled out, and the cylinder rotates autonomously under the action of the torsion spring, which can quickly rewind the unfolded measuring line, reducing the winding time.

[0023] 2. In this utility model, with the cooperation of the probe rod, compression bolt, and sensor connecting rod structure, the measurement is carried out by the sensor connecting rod at one end of the fixed cylindrical block. After measuring the outside, the probe rod, connecting rod, and fixed cylindrical block can be disassembled by tightening the bolt, which can quickly achieve assembly and disassembly. Attached Figure Description

[0024] Figure 1 This is a three-dimensional schematic diagram of a low-temperature thermometer that is easy to calibrate and install according to the present invention.

[0025] Figure 2 This is a schematic diagram of the structure of a recovery mechanism for a low-temperature thermometer that is easy to calibrate and install, as proposed in this utility model.

[0026] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 This is a schematic diagram of the measuring head of a low-temperature thermometer that is easy to calibrate and install, as proposed in this utility model.

[0028] Legend:

[0029] 1. Case; 2. Display screen; 3. Measuring line; 4. Sliding block; 5. Cylinder; 6. Connecting rod; 7. Insert post; 8. Moving rod; 9. Ring; 10. Torsion spring; 11. Probe; 12. First clamping bolt; 13. Connecting rod; 14. Second clamping bolt; 15. Fixed cylindrical block; 16. Sensor connecting rod. Detailed Implementation

[0030] 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.

[0031] Reference Figures 1-3 The present invention provides an embodiment of a low-temperature thermometer that is easy to calibrate and install, comprising a measuring wire 3 and a housing 1. One end of the measuring wire 3 is provided with a retrieval mechanism, which includes a sliding block 4. A cylinder 5 is provided inside the sliding block 4, and the measuring wire 3 is sleeved on the outside of the cylinder 5. A torsion spring 10 is provided inside the sliding block 4. A connecting rod 6 is fixedly connected to the front end of the cylinder 5. A plug 7 is provided inside the connecting rod 6. A moving rod 8 is rotatably connected to the end of the connecting rod 6 away from the cylinder 5. A fixing mechanism is provided at the end of the measuring wire 3 away from the housing 1.

[0032] Specifically, it includes a measuring wire 3 and a watch case 1. One end of the measuring wire 3 is equipped with a retrieval mechanism, which is used to retrieve and release the measuring wire 3. The retrieval mechanism includes a sliding block 4, inside which is a cylinder 5. During operation, the cylinder 5 rotates inside the sliding block 4. The measuring wire 3 is sleeved on the outside of the cylinder 5. A torsion spring 10 is installed inside the sliding block 4. During the rotation of the cylinder 5, it drives the outer measuring wire 3 to rotate. A connecting rod 6 is fixedly connected to the front end of the cylinder 5. A pin 7 is installed inside the connecting rod 6. During the release of the wire, it is inserted into the sliding block 4 through the pin 7 inside the connecting rod 6 for fixation. A moving rod 8 is rotatably connected to the end of the connecting rod 6 away from the cylinder 5. A fixing mechanism is provided at the end of the measuring wire 3 away from the watch case 1. During the rotation of the moving rod 8, it drives the connecting rod 6 to rotate.

[0033] Reference Figures 1-4 The measuring mechanism includes a probe rod 11, a clamping bolt 12 is provided between the probe rod 11 and the connecting rod 13, a fixed cylindrical block 15 is rotatably connected to the connecting rod 13, a clamping bolt 14 is provided between the connecting rod 13 and the fixed cylindrical block 15, and a sensor connecting rod 16 is fixedly connected to one end of the fixed cylindrical block 15.

[0034] Specifically, the measuring mechanism includes a probe 11, with a clamping bolt 12 between the probe 11 and the connecting rod 13. During measurement, the measuring mechanism at one end of the measuring line 3 is used for measurement. The connecting rod 13 is rotatably connected to a fixed cylindrical block 15, and a clamping bolt 14 is provided between the connecting rod 13 and the fixed cylindrical block 15. The connecting rod 13 and the fixed cylindrical block 15 are fixed by the clamping bolt 14. A sensor connecting rod 16 is fixedly connected to one end of the fixed cylindrical block 15. During the measurement process, the worker places the sensor connecting rod 16 inside the object for measurement.

[0035] Reference Figures 1-3 The outer side of the cylinder 5 is rotatably connected to the inside of the sliding block 4, and the rear end of the cylinder 5 is fixedly connected to one end of the torsion spring 10.

[0036] Specifically, the outer side of the cylinder 5 is rotatably connected to the inside of the sliding block 4, and the rear end of the cylinder 5 is fixedly connected to one end of the torsion spring 10. During rotation, the cylinder 5 is fixed by the torsion spring 10 inside the sliding block 4.

[0037] Reference Figures 1-3 The top of the watch case 1 is equipped with a display screen 2.

[0038] Specifically, a display screen 2 is installed on the top of the watch case 1, and the values ​​are read through the display screen 2 on the top of the watch case 1.

[0039] Reference Figures 1-2 The insert 7 passes through the connecting rod 6 and is inserted into the inside of the sliding block 4.

[0040] Specifically, the insert 7 passes through the connecting rod 6 and is inserted into the inside of the sliding block 4. When the insert 7 is inserted into the inside of the sliding block 4, it is fixed by torque so that the measuring line 3 on the outside of the cylinder 5 is stuck.

[0041] Reference Figures 1-2 One end of the movable rod 8 is fixedly connected to a ring 9.

[0042] Specifically, a ring 9 is fixedly connected to one end of the moving rod 8, and the moving rod 8 is fixed by the ring 9 at one end when it rotates.

[0043] Reference Figures 1-4 Both probe rod 11 and connecting rod 13 have threads on their opposite ends, and clamping bolt 12 is threaded between their outer sides.

[0044] Specifically, the probe rod 11 and the connecting rod 13 are threaded at opposite ends, and the clamping bolt 12 is threaded between the outer sides of the two. The probe rod 11 and the connecting rod 13 are connected by the clamping bolt 12.

[0045] Reference Figures 1-4 Both the connecting rod 13 and the fixed cylindrical block 15 have threads on their opposite ends, and the clamping bolt 14 is threaded between the outer sides of the two.

[0046] Specifically, the connecting rod 13 and the fixed cylindrical block 15 are both threaded at opposite ends, and the clamping bolt 2 14 is threaded between the outer sides of the two, and the connecting rod 13 and the fixed cylindrical block 15 are connected by the clamping bolt 2 14.

[0047] Working principle: When the worker takes measurements, rotating the moving rod 8 drives the connecting rod 6 at one end. During the rotation of the connecting rod 6, the cylinder 5 rotates. During the rotation, the measuring line 3 on the outside of the cylinder 5 is released. During the release of the measuring line 3, the torsion spring 10 connected inside the sliding block 4 of the cylinder 5 rotates, generating a certain resistance. At the same time, the cylinder 5 releases the line during the rotation. After the line is released to a suitable length, the insertion post 7 can be fixed in the internal opening slot of the sliding block 4. Then, the worker can assemble the probe 11, connecting rod 13, and fixed cylinder block 15 by tightening bolt 12 and tightening bolt 14. After assembly, the temperature can be measured and the data is transmitted through the measuring line 3. The reading is displayed on the display screen 2 on the top of the case 1. After the measurement is completed, the insertion post 7 is pulled out, and the measuring line 3 on the outside of the cylinder 5 is retracted by the force of the torsion spring 10.

[0048] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cryogenic thermometer for ease of calibration installation comprising a measuring wire (3) and a watch case (1), characterized in that: One end of the measuring line (3) is provided with a retrieval mechanism, which includes a sliding block (4). A cylinder (5) is provided inside the sliding block (4), and the measuring line (3) is sleeved on the outside of the cylinder (5). A torsion spring (10) is provided inside the sliding block (4). A connecting rod (6) is fixedly connected to the front end of the cylinder (5). A plug (7) is provided inside the connecting rod (6). A moving rod (8) is rotatably connected to the end of the connecting rod (6) away from the cylinder (5). A measuring mechanism is provided at the end of the measuring line (3) away from the case (1).

2. A cryogenic thermometer for ease of calibration installation according to claim 1, characterized in that: The measuring mechanism includes a probe (11), a clamping bolt (12) is provided between the probe (11) and the connecting rod (13), the connecting rod (13) is rotatably connected to a fixed cylindrical block (15), a clamping bolt (14) is provided between the connecting rod (13) and the fixed cylindrical block (15), and a sensor connecting rod (16) is fixedly connected to one end of the fixed cylindrical block (15).

3. A cryogenic thermometer for ease of calibration installation according to claim 2, characterized in that: The outer side of the cylinder (5) is rotatably connected to the inside of the sliding block (4), and the rear end of the cylinder (5) is fixedly connected to one end of the torsion spring (10).

4. A cryogenic thermometer for ease of calibration and installation according to claim 1, characterized in that: The top of the watch case (1) is equipped with a display screen (2).

5. A cryogenic thermometer for ease of calibration installation according to claim 2, characterized in that: The insert (7) passes through the connecting rod (6) and is inserted into the sliding block (4).

6. A low temperature thermometer for ease of calibration installation according to claim 2, characterized in that: One end of the movable rod (8) is fixedly connected to a ring (9).

7. A low temperature thermometer for ease of calibration installation according to claim 2, characterized in that: The probe (11) and the connecting rod (13) are both threaded at opposite ends, and the clamping bolt (12) is threaded between the two outer sides.

8. A low temperature thermometer for ease of calibration installation according to claim 2, characterized in that: The connecting rod (13) and the fixed cylindrical block (15) are both threaded at opposite ends, and the clamping bolt (14) is threaded between the two outer sides.

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