A handheld temperature, humidity, dew point, and micro-moisture detector

Abstract

This utility model discloses a handheld temperature, humidity, dew point, and micro-moisture detector, comprising: an instrument body; a handheld portion at the lower end of the instrument body, divided by a partition into chambers A and B for storing auxiliary components used in gas temperature, humidity, dew point, and micro-moisture detection, and for connecting the instrument body to the handheld portion. The partition divides the inner cavity of the handheld portion of the instrument body into chambers A and B, allowing for the categorized storage of auxiliary components of different specifications, preventing components from becoming tangled or compressed; a magnetic storage cover, with magnetic blocks tightly adhering to the inner groove of the metal cover, effectively prevents dust and moisture, greatly reducing the risk of sensor damage from impacts and component loss, providing reliable storage protection for the auxiliary components. By clearly defining the storage location of each auxiliary component, the dual-chamber partitioned storage advantage is fully utilized, eliminating the cumbersome process of searching for components in traditional equipment. Users can quickly retrieve and return the required components, significantly shortening pre-test preparation time and significantly improving overall testing efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of dew point moisture detectors, specifically relating to a handheld temperature and humidity dew point moisture detector. Background Technology

[0002] Handheld temperature, humidity, dew point, and micro-moisture detectors are widely used in industrial production, environmental monitoring, and scientific research due to their portability and high detection efficiency. However, existing detection equipment generally suffers from design flaws in the storage of auxiliary components: on the one hand, auxiliary components such as gas sampling probes, sampling tubes, and connecting cables are typically stored externally or in separate packaging, which not only makes them susceptible to sensor damage from bumps but also leads to easy loss of components due to scattered storage; on the other hand, the internal space of the handheld part of traditional instruments is not utilized efficiently, lacking a categorized storage structure for auxiliary components of different specifications. Users must frequently search for matching components when changing detection scenarios, severely impacting detection efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a handheld temperature, humidity, dew point, and micro-moisture detector to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a handheld temperature, humidity, dew point, and micro-moisture detector, comprising:

[0005] The instrument body has a handheld part at the lower end of the instrument body with a partition separating chamber A and chamber B for storing auxiliary parts for gas temperature, humidity, dew point and micro water detection. The bottom end of the handheld part of the instrument body is magnetically attached with a storage cover for closing chamber A and chamber B.

[0006] One side of the instrument body is connected to a collection and detection tube that draws out the gas in the pipeline for dew point detection or is directly connected to the gas pipeline for dew point detection. One end of the collection and detection tube is equipped with a detection probe that is directly connected to the gas pipeline for dew point detection.

[0007] Preferably, the partition is fixed between chamber A and chamber B, and the bottom of the handheld part of the instrument body is provided with a cover groove. The inside of the cover groove is a metal structure, which allows the large gas collection components and thin connecting wires and other components to be stored separately, avoiding damage caused by mutual entanglement and compression.

[0008] Preferably, magnetic blocks are embedded at the four corners of one side of the storage cover, and the storage cover is magnetically attached to the inner groove of the cover by the magnetic blocks. This enables a uniform and stable adsorption force to be formed between the storage cover and the inner groove of the cover, ensuring that the cover fits tightly. This not only serves to prevent dust and moisture but also further protects the detection auxiliary components inside the cavity.

[0009] Preferably, one end of the detection probe is screwed to the detection tube, and the other end of the detection probe is screwed to a storage connection line for combination connection with the instrument body. The detection probe has a built-in temperature and humidity sensor, which on the one hand ensures the firmness of the connection and prevents the detection data deviation or component detachment due to loosening during gas collection, thereby improving the accuracy of the detection results; on the other hand, this detachable design makes it easy to quickly replace the appropriate detection probe according to different detection scenarios.

[0010] Preferably, the collection and detection tube has a collection chamber inside, and the upper end of the collection and detection tube is connected to a collection outlet. One end of the collection outlet is screwed with a filter screen to adsorb and filter the gas, ensuring the uniformity of gas flow during the detection process and improving the detection accuracy. The screwed design of the filter screen can effectively filter impurities, particulate matter and other pollutants in the gas, preventing them from entering the detection probe and damaging the temperature and humidity sensor.

[0011] Preferably, one end of the acquisition and detection tube is provided with an exhaust inlet pipe, and the other end of the exhaust inlet pipe is provided with a manual valve. The exhaust inlet pipe is connected to a gas pipeline for gas extraction and collection. The exhaust inlet pipe, in conjunction with the manual valve, allows for flexible control of the gas intake and intake speed. When detecting gas pipelines with different pressures and flow rates, the user can adjust the valve opening according to actual needs, avoiding problems such as the gas flow rate impacting the detection probe too fast or the detection time being too long due to insufficient gas flow.

[0012] Preferably, the instrument body has a detection display panel and parameter setting control buttons on its surface. The instrument body has a disassembly and assembly connector for gas dew point detection that is screwed onto the storage connection cable on one side. The instrument body has a battery compartment at the front of the handheld part for assembling batteries. This facilitates battery installation and replacement and optimizes the instrument's center of gravity distribution, making handheld operation more comfortable and stable.

[0013] Preferably, the gas collection tube, detection probe, and lead-out inlet tube are stored in cavity A when not in use, and the connecting wire is stored in cavity B. This fully utilizes the partitioned storage function of cavity A and cavity B to classify and store the core gas collection components and connecting wires, avoiding the problem in the prior art where "users need to frequently search for matching components when changing detection scenarios".

[0014] Compared with existing technologies, the technical effects and advantages of this utility model are as follows: This handheld temperature, humidity, dew point, and micro-moisture detector...

[0015] The instrument's main handheld part is divided into chamber A and chamber B by a partition, allowing for the categorized storage of different specifications of testing auxiliary parts and preventing them from becoming tangled or squeezed together. The magnetic storage cover uses magnetic blocks to tightly adhere to the inner groove of the metal cover, effectively preventing dust and moisture, greatly reducing the risk of sensor damage from bumps and component loss, and providing reliable storage protection for testing auxiliary parts.

[0016] The detection probe, the acquisition tube, and the storage connection cable are connected by screws to ensure a secure connection and prevent data deviation caused by loose parts during detection. The acquisition chamber inside the acquisition tube ensures uniform gas flow, and with the detachable filter cylinder, it efficiently filters gas impurities, avoids sensor contamination, and comprehensively improves the accuracy and reliability of the detection results.

[0017] The instrument's main body features a detection display panel and control buttons, allowing users to view data in real time and quickly set parameters. The exhaust inlet pipe, equipped with a manual valve, allows for flexible adjustment of the gas intake and speed based on the pressure and flow rate of different gas pipelines, preventing impact to the detection probe. The battery compartment's optimized layout enhances the instrument's center of gravity, making handheld operation more comfortable and stable, significantly improving the instrument's ease of operation and user comfort.

[0018] By clearly defining the storage locations of each testing auxiliary component, the advantages of dual-chamber partitioned storage are fully utilized, eliminating the cumbersome process of searching for components in traditional equipment. Users can quickly retrieve and return the required components, significantly shortening pre-test preparation time, greatly improving overall testing efficiency, and effectively solving the inefficiency problem caused by disorganized storage in existing equipment. Attached Figure Description

[0019] Figure 1 This is a front view of the internal structure of the handheld part of the temperature, humidity, dew point, and micro-moisture detector of this utility model.

[0020] Figure 2 This is a diagram illustrating the use of the temperature, humidity, dew point, and micro-moisture detector of this utility model.

[0021] Figure 3 This is a front view of the data acquisition and detection tube of this utility model;

[0022] Figure 4 This is a top view of the storage cover of this utility model;

[0023] Figure 5 This is the external front view of the temperature, humidity, dew point, and micro-moisture detector of this utility model.

[0024] In the diagram: 1. Main body of the instrument; 2. Partition plate; 3. Chamber A; 4. Chamber B; 5. Storage cover plate; 6. Data acquisition and detection tube; 7. Detection probe; 8. Inner groove of the cover; 9. Magnetic block; 10. Storage connecting wire; 12. Temperature and humidity sensor; 13. Data acquisition outlet; 14. Filter screen; 15. Outlet air inlet pipe; 16. Disassembly and assembly connector; 17. Battery compartment; 18. Valve. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-5 This utility model provides a technical solution: a handheld temperature, humidity, dew point, and micro-moisture detector, comprising:

[0027] The instrument body 1 has a handheld portion at its lower end containing two chambers, A3 and B4, separated by a partition 2. These chambers house auxiliary components for gas temperature, humidity, dew point, and micro-moisture detection. The partition 2 is made of high-strength, rigid plastic and is fixed to the handheld portion using ultrasonic welding. Its thickness has been mechanically calculated to ensure the structural independence of chambers A3 and B4 without excessively occupying internal storage space. A magnetically attached storage cover 5, designed to close chambers A3 and B4, is located on the bottom of the handheld portion of the instrument body 1. The cover 5 features a non-slip textured surface for easy opening and closing.

[0028] The instrument body 1 is connected to a collection and detection tube 6 on one side, which draws out the gas from the pipeline for dew point detection or is directly connected to the gas pipeline for dew point detection. The collection and detection tube 6 is made of highly corrosion-resistant 316 stainless steel with uniform wall thickness, capable of withstanding gas collection under different pressure environments. One end of the collection and detection tube 6 is detachably equipped with a detection probe 7 that is directly connected to the gas pipeline for dew point detection. The outer surface of the detection probe 7 is coated with a wear-resistant protective coating, which can effectively resist the influence of external scratches on the sensor.

[0029] The partition 2 is fixed between chamber A3 and chamber B4. The bottom of the handheld part of the instrument body 1 is provided with a cover groove 8. The groove wall of the cover groove 8 is finely polished to ensure a tight fit with the storage cover 5. The interior of the cover groove 8 is a metal structure made of low-carbon steel with good magnetic permeability, which can form a stable magnetic attraction effect with the magnetic block 9.

[0030] Magnetic blocks 9 are embedded at the four corners of one side of the storage cover 5. The magnetic blocks 9 are made of neodymium iron boron permanent magnet material, which has the characteristics of high remanence and high coercivity. The storage cover 9 is magnetically closed in the inner groove 8 by the magnetic blocks 9. In the magnetic state, the gap between the storage cover 5 and the inner groove 8 is less than 0.5 mm, effectively preventing dust and moisture from entering.

[0031] One end of the detection probe 7 is screwed to the acquisition and detection tube 6, and the other end of the detection probe 7 is screwed to a storage connection cable 10 for combined connection with the instrument body 1. Sealing rubber rings are provided at all screwed connections to prevent gas leakage from affecting the detection results. The detection probe 7 has a built-in temperature and humidity sensor 12, which is a high-precision digital sensor with fast response and strong stability, and can accurately detect within a wide temperature range of -40℃ to 120℃.

[0032] The collection and detection tube 6 has a collection chamber inside, and the inner wall of the collection chamber is polished to reduce gas flow resistance. A collection outlet 13 is connected to the upper end of the collection and detection tube 6, and a filter cylinder 14 for adsorbing and filtering the gas is screwed to one end of the collection outlet 13. The filter cylinder 14 is filled with a composite filter material of high-efficiency activated carbon fiber and fiber filter cotton, which can effectively adsorb harmful impurities and fine particles in the gas.

[0033] The acquisition and detection tube 6 is equipped with an exhaust inlet pipe 15 at one end, and a manually operated valve 18 at the other end. The valve 18 adopts a ball valve structure, which is simple to operate and has excellent sealing performance. The exhaust inlet pipe 15 is connected to a gas pipeline for gas extraction and collection. The connection port of the exhaust inlet pipe 15 adopts a standard quick-connect interface design, which is compatible with various specifications of gas pipelines.

[0034] The instrument body 1 has a detection display panel and parameter setting control buttons on its surface. The detection display panel uses a high-resolution color LCD screen, which can simultaneously display multiple detection data such as temperature, humidity, and dew point. One side of the instrument body 1 has a detachable connector 16 for gas dew point detection, which is screwed onto the storage cable 10. The screw hole of the detachable connector 16 is filled with anti-loosening thread adhesive to ensure a secure connection. The front of the handheld part of the instrument body 1 has a battery compartment 17 for battery installation. The battery compartment 17 uses a snap-on opening and closing design and has a built-in battery power detection module to monitor the battery status in real time.

[0035] The acquisition and detection tube 6, detection probe 7, and air inlet tube 15 are assembled and stored in cavity A3 when not in use. Cavity A3 has an elastic limiting structure to securely fix the assembled components. The connecting wire 10 is stored in cavity B4, which has a spiral winding post to facilitate the neat winding and storage of the connecting wire 10.

[0036] The dew point meter has an automatic calibration function to ensure the measurement accuracy of the sensor in low humidity environments.

[0037] If data drift is detected after the sensor has been used for a period of time, in addition to the manual calibration function mentioned above, the user can also select the sensor's automatic calibration function to correct the sensor.

[0038] The specific method for calibrating a dew point meter is as follows:

[0039] Operating conditions: Users need to prepare nitrogen gas with a purity of 99.999% (around -60℃), or ensure that the ambient dew point can reach below -60℃.

[0040] Dew point values ​​at -60°C were collected using sensors.

[0041] ① If the sensor reading is below -60℃, the host will send an automatic calibration command to the sensor to calibrate the sensor dew point to around -60℃;

[0042] ② If the sensor reading is higher than -60℃, the user needs to manually calibrate the sensor to any value below -60℃. After calibration, the host sends an automatic calibration command to the sensor to calibrate the sensor dew point to around -60℃.

[0043] When the sensor dew point value deviates, the sensor can be manually corrected as follows:

[0044] After entering the manual calibration interface by pressing the operation key, press the ↑ or ↓ key to change the dew point value. Once the dew point value is consistent with the standard value or within the error range, press the operation key to save the calibration data to the sensor.

[0045] After calibration using this method, the calibrated probe is connected to another display instrument. The instrument displays the calibrated value, which is a true calibration of the sensor's internal structure, rather than simply correcting the display instrument.

[0046] Example: When a sensor drifts after a period of use, assuming the standard environmental dew point is -45℃ and the instrument displays -30℃, the sensor can be manually corrected. After pressing Enter to enter the manual calibration interface, use the down arrow key to change the dew point value. Once the dew point value is adjusted to around -45℃, press Enter to save the calibration data to the sensor.

[0047] Specifically, in terms of the detection workflow, when gas needs to be detected, the gas flow direction is controlled by the manual valve 18 at one end of the inlet pipe 15. The inlet pipe 15 is connected to the gas pipeline, and the valve is opened to allow the gas to flow into the collection and detection tube 6. The gas first passes through the collection chamber in the collection and detection tube 6, where it flows stably to ensure uniform gas distribution, and then exits from the collection outlet 13. During this process, the filter screen 14 screwed to one end of the collection outlet 13 adsorbs and filters the gas, removing impurities and particulate matter to prevent them from entering the detection probe 7. The temperature and humidity sensor 12 built into the detection probe 7 monitors the temperature and humidity data of the gas in real time, and transmits the data to the instrument body 1 through the connection end screwed to the collection and detection tube 6 and the storage connection cable 10. The detection display panel on the surface of the instrument body 1 displays the detection data in real time. Users can adjust the parameters and set the functions of the instrument through the parameter setting control buttons to achieve accurate detection of gas temperature, humidity, dew point, and micro-moisture.

[0048] Regarding the management of auxiliary components, the inner cavity of the handheld part at the lower end of the instrument body 1 is divided into chamber A3 and chamber B4 by a partition 2. When the instrument is not in use, the acquisition tube 6, the detection probe 7, and the exhaust inlet tube 15 are assembled and stored in chamber A3, while the connecting cable 10 is stored in chamber B4, thus achieving classified storage of auxiliary testing components of different specifications. Magnetic blocks 9 embedded at the four corners of one side of the storage cover 5 magnetically attract the metal structure of the inner groove 8 at the bottom of the handheld part of the instrument body 1, ensuring that the storage cover 5 tightly seals chambers A3 and B4, providing dust and moisture protection and protecting the internal auxiliary testing components from damage or loss. For the next use, simply open the magnetic storage cover 5 to quickly retrieve the required components, complete the testing preparation, and improve work efficiency.

[0049] 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 handheld temperature, humidity, dew point, and micro-moisture detector, characterized in that, include: The instrument body (1) has a hand-held part at the lower end of the instrument body (1) with a partition (2) separating a chamber A (3) and a chamber B (4) for storing auxiliary parts for gas temperature, humidity, dew point and micro water detection connected to the instrument body (1). The bottom end of the hand-held part of the instrument body (1) is magnetically provided with a storage cover plate (5) for covering chamber A (3) and chamber B (4). The instrument body (1) is connected to a collection and detection tube (6) on one side, which draws out the gas in the pipeline to collect dew point detection or directly connects to the gas pipeline for dew point detection. One end of the collection and detection tube (6) is equipped with a detection probe (7) that is directly connected to the gas pipeline for dew point detection.

2. The handheld temperature, humidity, dew point, and micro-moisture detector according to claim 1, characterized in that: The partition (2) is fixed between chamber A (3) and chamber B (4). The bottom of the handheld part of the instrument body (1) is provided with a cover groove (8), and the inside of the cover groove (8) is a metal structure.

3. A handheld temperature, humidity, dew point, and micro-moisture detector according to claim 1, characterized in that: Magnetic blocks (9) are embedded at the four corners of one side of the storage cover (5), and the storage cover (5) is magnetically attached to the inner groove (8) by the magnetic blocks (9).

4. A handheld temperature, humidity, dew point, and micro-moisture detector according to claim 1, characterized in that: One end of the detection probe (7) is screwed to the acquisition detection tube (6), and the other end of the detection probe (7) is screwed to a storage connection line (10) for combined connection with the instrument body (1). The detection probe (7) has a built-in temperature and humidity sensor (12).

5. A handheld temperature, humidity, dew point, and micro-moisture detector according to claim 4, characterized in that: The collection and detection tube (6) is provided with a collection chamber inside, and the upper end of the collection and detection tube (6) is connected to a collection outlet (13). One end of the collection outlet (13) is screwed with a filter screen (14) for adsorbing and filtering the gas.

6. A handheld temperature, humidity, dew point, and micro-moisture detector according to claim 5, characterized in that: The collection and detection tube (6) is provided with an exhaust inlet pipe (15) at one end, and a manual valve (18) is provided at one end of the exhaust inlet pipe (15). The exhaust inlet pipe (15) is connected to a gas pipeline for gas extraction and collection.

7. A handheld temperature, humidity, dew point, and micro-moisture detector according to claim 6, characterized in that: The instrument body (1) has a detection display panel and a parameter setting control button on its surface. The instrument body (1) has a disassembly and assembly connector (16) on one side that is screwed to the storage connection line (10) for gas dew point detection. The instrument body (1) has a battery compartment (17) at the front end of its handheld part for assembling batteries.

8. A handheld temperature, humidity, dew point, and micro-moisture detector according to claim 7, characterized in that: The acquisition and detection tube (6), detection probe (7), and air inlet tube (15) are combined and stored in chamber A (3) when not in use, and the storage connection line (10) is stored in chamber B (4).

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