A duct type temperature and humidity transmitter

Abstract

The present invention provides a duct-type temperature and humidity transmitter, which belongs to the field of temperature and humidity measurement technology. The invention includes a transmitter body and an installation pipeline, and also includes: a detection component, a diversion and separation component, and a sealing and cleaning component; the air guide shell guides different layers of air flow to enter the detection cavity, and the spiral blade promotes full mixing of the air, ensuring that the air is fully mixed and separated, improving the representativeness of the sample, and making the air temperature and humidity reaching the detection chip more uniform and consistent; the detection component can switch the detection chip state, and the two-way sealing design can prevent external impurities from entering the accommodating cavity regardless of whether the detection chip is working or not, thereby protecting internal electronic components and circuits; the spiral blade can also promote gas-liquid separation, cooperate with the liquid guide table and the water leakage port to drain water, and avoid moisture interference; when the working state of the detection chip is switched, the cleaning wiper can remove pollutants on the surface of the detection chip, thereby improving measurement accuracy. At the same time, the screw will touch the spiral blade to make it vibrate and clean impurities, thereby ensuring stable operation of the temperature and humidity transmitter.

Description

Technical Field

[0001] The present invention relates to the technical field of temperature and humidity measurement, and in particular to a duct-type temperature and humidity transmitter. Background Art

[0002] A duct-mounted temperature and humidity transmitter is an instrument that converts temperature and humidity variables into a transmittable, standardized output signal. It is primarily used to measure and control temperature parameters within industrial pipelines. For example, in chemical production, many chemical reactions require specific temperature and humidity conditions. This transmitter can monitor the temperature and humidity within the pipeline in real time. If the temperature and humidity deviate from the preset range, the control system can immediately take appropriate measures, such as adjusting the operating power of the heating or cooling equipment or adjusting the air volume of the ventilation system, to ensure that the chemical reaction can proceed under optimal environmental conditions, thereby ensuring the stability and consistency of product quality.

[0003] When the duct-type temperature and humidity transmitter in the existing technology detects temperature and humidity in the pipeline environment, the probe is generally inserted into the pipeline. Since the installation position of the detection chip is fixed, once the installation is completed, the specific sampling point inside the pipeline can no longer be adjusted. The actual situation is that there is a certain degree of difference in humidity and temperature in the spaces at different heights inside some pipelines. In this case, this detection method is difficult to fully and accurately reflect the temperature and humidity distribution in the pipeline, which ultimately greatly reduces the accuracy of the monitoring results. In addition, due to the existence of the probe rod air inlet, during storage, transportation and actual use, rainwater, debris and other substances in the environment can easily enter the probe cover through the probe rod air inlet and adhere to the detection chip. The adhesion of these foreign substances may not only interfere with the probe chip's accurate perception of temperature and humidity and affect the measurement accuracy, but more seriously, it may cause substantial damage to the probe chip, thereby causing the entire temperature and humidity transmitter to fail to work properly.

[0004] How to invent a duct-type temperature and humidity transmitter to solve these problems has become an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0005] In order to make up for the above deficiencies, the present invention provides a duct-type temperature and humidity transmitter, which aims to solve the problems mentioned in the above background.

[0006] The present invention is achieved in that:

[0007] The present invention provides a duct-type temperature and humidity transmitter, comprising a transmitter body and a mounting pipe, wherein the transmitter body is composed of a display screen, a probe rod, a detection chip, and a probe cover, wherein the probe rod is fixed to the lower end of the display screen, the probe cover is threadedly connected to the lower end of the probe rod, a mounting flange is slidably connected to the probe rod, a positioning bolt for limiting the mounting flange is provided on the mounting flange, the transmitter body is fixedly mounted on the mounting pipe via the mounting flange, a plug is fixedly connected to the inside of the probe cover, and the probe cover is divided into two areas, a receiving chamber and a detection chamber, from top to bottom by the plug, and further comprising:

[0008] Detection component: The detection component is arranged inside the probe cover and is used to switch the working state of the detection chip;

[0009] Diversion and separation components: The diversion and separation components are arranged on the outside and inside of the probe cover. The diversion and separation components can absorb air from different layers in the installation pipe and separate and mix these air before testing;

[0010] Sealing and cleaning component: The sealing and cleaning component is arranged inside the probe cover. The sealing and cleaning component can ensure that the inside of the accommodating cavity is relatively sealed, and cleans the surface of the detection chip and the diversion separation component when the detection chip state is switched.

[0011] Preferably, the detection assembly includes an electric telescopic rod fixedly connected to the inside of the probe cover, a push rod is slidably connected to the inside of the electric telescopic rod, the outer end of the push rod is threadedly connected to a connecting circuit board, a wire is connected to the middle of the connecting circuit board, and a through hole matching the wire is provided on the mounting part of the electric telescopic rod, and the detection chip is fixedly arranged above the bottom end surface of the connecting circuit board and is electrically connected to the connecting circuit board.

[0012] Preferably, an analysis and processing module is provided inside the probe rod, the other end of the wire is electrically connected to the analysis and processing module, and the analysis and processing module is electrically connected to the display screen.

[0013] Preferably, the plug is provided with a through hole matching the connection circuit board, the detection chip is arranged in a ring shape, the plug is elastically arranged, and the bottom end of the connection circuit board when the detection chip is in the accommodating cavity is at least partially embedded in the through hole.

[0014] Preferably, the diversion and separation assembly includes an air guide shell, a water baffle and a spiral blade. The air guide shell and the water baffle are fixedly arranged on the outer wall of the probe cover. The spiral blade is fixedly arranged inside the detection cavity. An inlet is provided on the side wall of the probe cover near the lower end of the spiral blade, and an outlet is provided on the side wall of the probe cover near the upper end of the spiral blade. The bottom of the probe cover is recessed inwardly and provided with a liquid guide platform, and a water leakage port is provided through the middle of the liquid guide platform.

[0015] Preferably, the outlet and the inlet are located on different sides of the probe cover, the ends of the inlet and the outlet pass through the side wall of the probe cover, the direction of the air guide shell is opposite to the flow direction of the air in the installation pipe, and the air guide shell and the inlet are on the same side.

[0016] Preferably, the air guide shell is inserted into the installation pipe along with the probe cover from the flange connection pipe of the installation pipe, and the air guide shell can cover most of the area of ​​the installation pipe cross section.

[0017] Preferably, the sealing and cleaning assembly includes an annular airbag, a connecting rod fixedly connected to the bottom end of the circuit board, and placement cavity one and placement cavity two arranged in the plug, the side walls of the connecting rod are fixedly connected to two U-shaped rods, the bottom wall of the connecting rod is fixedly connected to a screw, the annular airbag is fixedly arranged in placement cavity one, a cleaning wipe is arranged in placement cavity two, a top block is fixedly connected to the middle of the U-shaped rod facing the connecting rod, a pressure ring is fixedly connected to the top end of the U-shaped rod, and a through hole matching the screw is arranged in the center of the spiral sheet.

[0018] Preferably, a sliding groove matching the U-shaped rod and a connecting groove matching the pressure ring are provided in the plug, the upper end of the connecting groove is connected to the bottom of the placement cavity one, the sliding groove is connected to the connecting groove on the same side, and the upper side wall of the plug is provided with an upper through groove matching the pressure ring.

[0019] Preferably, the cleaning wipe is annularly arranged, and when the detection chip is located in the detection cavity, the lower side wall of the pressure ring abuts against the upper side wall of the annular airbag. At this time, the side wall of the annular airbag is tightly abutted against the outer side wall of the connecting circuit board above the detection chip. When the detection chip is located in the accommodating cavity, the top of the top block abuts against the lower side wall of the annular airbag. At this time, the side wall of the annular airbag is tightly abutted against the outer side wall of the connecting circuit board below the detection chip. The cleaning wipe is a sponge block, and the annular airbag is in an unsaturated state when the top block and the pressure ring are not in contact with the side wall of the annular airbag.

[0020] The beneficial effects of the present invention are:

[0021] In the diversion and separation component, the air guide shell guides different layers of air flow to enter the detection cavity, the spiral blades promote full mixing of the air, eliminate the temperature and humidity stratification phenomenon, and the reasonable layout of the inlet and outlet ensures full mixing and separation of the air, improves the representativeness of the detected air sample, and makes the air temperature and humidity reaching the detection chip more uniform and consistent, providing a high-quality air sample basis for accurate measurement; the detection component can flexibly switch the working state of the detection chip, and seal it in the containing cavity for protection when not in use to avoid long-term exposure affecting the accuracy. The two-way sealing design of the sealing and cleaning component can prevent external impurities from entering the containing cavity regardless of whether the detection chip is working or not, protect the internal electronic components and circuits, and ensure the stability of the measurement environment, thereby ensuring the long-term stable measurement performance and accuracy of the temperature and humidity transmitter.

[0022] The spiral blades can also promote gas-liquid separation, cooperate with the liquid guide table and the drain port to reduce the moisture entering the detection area of ​​the detection chip and avoid moisture interference; when the working state of the detection chip is switched, the cleaning wiper can promptly remove pollutants on the surface of the detection chip, further reduce measurement interference factors, and improve measurement accuracy. At the same time, the screw will touch the spiral blade to vibrate and clean impurities, preventing the accumulation of impurities on the spiral blade from affecting the airflow guidance and mixing effects, maintaining the normal operation of the diversion and separation components, and ensuring the stable operation of the entire temperature and humidity transmitter. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a schematic diagram of the overall structure of a duct-type temperature and humidity transmitter provided by the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of an air duct type temperature and humidity transmitter provided by the present invention during installation;

[0026] Figure 3 This is a schematic diagram of the cross-sectional structure of an installation pipe for a duct-type temperature and humidity transmitter provided by the present invention;

[0027] Figure 4 This is a schematic diagram of the connection structure between the analysis and processing module of the duct-type temperature and humidity transmitter and the connection circuit board provided by the present invention;

[0028] Figure 5 This invention provides a duct type temperature and humidity transmitter Figure 4 A in the middle is an enlarged structural diagram;

[0029] Figure 6 This is a schematic diagram of the cross-sectional structure of the probe cover of a duct-type temperature and humidity transmitter provided by the present invention when in operation;

[0030] Figure 7 This is a schematic diagram of the distribution structure of the detection cavity and the accommodation cavity of a duct-type temperature and humidity transmitter provided by the present invention;

[0031] Figure 8 This is a schematic diagram of a partial front cross-sectional structure of a duct-type temperature and humidity transmitter provided by the present invention when in operation;

[0032] Figure 9 This is a schematic diagram of the cross-sectional structure of the probe cover of a duct-type temperature and humidity transmitter provided by the present invention when it is not working;

[0033] Figure 10 This is a schematic diagram of a partial front cross-sectional structure of a duct-type temperature and humidity transmitter provided by the present invention when not in operation;

[0034] Figure 11 This invention provides a duct type temperature and humidity transmitter Figure 10 The enlarged structural diagram at B in the middle;

[0035] Figure 12 This is a schematic diagram of a partially exploded structure of a duct-type temperature and humidity transmitter provided by the present invention;

[0036] Figure 13 The present invention provides a schematic diagram of the cross-sectional structure of a duct-type temperature and humidity transmitter plug.

[0037] In the figure: 1. display screen; 2. probe rod; 3. probe cover; 4. air guide shell; 5. electric telescopic rod; 6. plug; 7. connecting rod; 8. spiral sheet; 9. annular airbag; 10. mounting flange; 11. mounting pipe; 21. analysis and processing module; 31. detection chamber; 32. accommodating chamber; 41. water baffle; 51. push rod; 52. connecting circuit board; 53. detection chip; 54. wire; 61. placement chamber 1; 62. slide groove; 63. upper through groove; 64. connecting groove; 65. placement chamber 2; 71. U-shaped rod; 72. screw; 311. inlet; 312. outlet; 313. liquid guide platform; 314. water leakage outlet; 651. cleaning wiper; 711. top block; 712. pressure ring. DETAILED DESCRIPTION

[0038] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0039] Example 1, refer to Figures 1-11 A duct-type temperature and humidity transmitter includes a transmitter body and a mounting pipe 11. The transmitter body is composed of a display screen 1, a probe rod 2, a detection chip 53, and a probe cover 3. The probe rod 2 is fixed to the lower end of the display screen 1. The probe cover 3 is threadedly connected to the lower end of the probe rod 2. A mounting flange 10 is slidably connected to the probe rod 2. The mounting flange 10 is provided with a positioning bolt for limiting the mounting flange 10. The transmitter body is fixedly mounted on the mounting pipe 11 through the mounting flange 10. A plug 6 is fixedly connected to the probe cover 3. The probe cover 3 is divided into two areas, a receiving chamber 32 and a detection chamber 31, from top to bottom by the plug 6. The transmitter also includes:

[0040] Detection component: The detection component is arranged inside the probe cover 3 and is used to switch the working state of the detection chip 53;

[0041] Diversion and separation components: Diversion and separation components are arranged on the outside and inside of the probe cover 3. The diversion and separation components can inhale the air of different layers in the installation pipe 11 and separate and mix these air before detection;

[0042] Sealing and cleaning component: The sealing and cleaning component is arranged inside the probe cover 3. The sealing and cleaning component can ensure that the interior of the accommodating cavity 32 is relatively sealed, and cleans the surface of the detection chip 53 and the diversion separation component when the state of the detection chip 53 is switched.

[0043] Furthermore, the detection assembly includes an electric telescopic rod 5 fixedly connected to the inside of the probe cover 3, the electric telescopic rod 5 is slidably connected to a push rod 51, and the outer end of the push rod 51 is threadedly connected to a connecting circuit board 52. When the working state of the detection chip 53 needs to be changed, the electric telescopic rod 5 is started, and the internal push rod 51 starts to slide. The sliding of the push rod 51 drives the connecting circuit board 52 to move axially. The middle part of the connecting circuit board 52 is connected to a wire 54. The mounting portion of the electric telescopic rod 5 is provided with a through hole matching the wire 54. The detection chip 53 is fixedly arranged on the connecting circuit board 52 is above the bottom end surface and is electrically connected to the connecting circuit board 52. An analysis and processing module 21 is provided inside the probe rod 2. The other end of the wire 54 is electrically connected to the analysis and processing module 21, and the analysis and processing module 21 is electrically connected to the display screen 1. One end of the wire 54 is connected to the detection chip 53 to obtain temperature and humidity detection data; the other end passes through the matching opening on the mounting part of the electric telescopic rod 5, enters the interior of the probe rod 2, and is electrically connected to the analysis and processing module 21. After the analysis and processing module 21 analyzes and processes the received data, the result is transmitted to the display screen 1 for display.

[0044] It should be noted that a through hole matching the connecting circuit board 52 is provided on the plug 6, the detection chip 53 is arranged in a ring shape, and the plug 6 is elastically arranged to ensure that the detection chip 53 and the connecting circuit board 52 can pass smoothly. When the detection chip 53 is in the accommodating cavity 32, the bottom end of the connecting circuit board 52 is at least partially embedded in the through hole, and the through hole is closed by the connecting circuit board 52, thereby isolating the detection chip 53 from the detection cavity 31 below the plug 6. In this way, when the temperature and humidity transmitter is not in use (for example, during warehousing, transportation, etc.), the detection chip 53 and the connecting circuit board 52 are enclosed inside the accommodating cavity 32, and can be effectively protected even if a filter cover is not provided, thereby avoiding as much as possible the problem of the detection chip 53 being affected in accuracy or even damaged due to long-term exposure.

[0045] In this embodiment, when the working state of the detection chip 53 needs to be changed, the electric telescopic rod 5 is started, and the internal push rod 51 begins to slide. Since the outer end of the push rod 51 is threadedly connected to the connecting circuit board 52, the sliding of the push rod 51 drives the connecting circuit board 52 to move axially. The wire 54 connected to the middle part of the connecting circuit board 52 plays a key role in data transmission. One end of the wire 54 is connected to the detection chip 53 to obtain temperature and humidity detection data; the other end passes through the matching opening on the mounting part of the electric telescopic rod 5, enters the interior of the probe rod 2, and is electrically connected to the analysis and processing module 21. After the analysis and processing module 21 analyzes and processes the received data, the result is transmitted to the display screen 1 for display.

[0046] When the temperature and humidity transmitter needs to be used for measurement, the electric telescopic rod 5 pushes the push rod 51 and the connecting circuit board 52 to move downward, and the detection chip 53 enters the detection cavity 31 from the accommodating cavity 32. At this time, the detection chip 53 is exposed to the air in the detection cavity 31 and begins to detect the temperature and humidity of the air; when the temperature and humidity transmitter is not in use (such as during warehousing, transportation, etc.), the electric telescopic rod 5 drives the push rod 51 and the connecting circuit board 52 to move upward, and the detection chip 53 returns to the accommodating cavity 32. The bottom end of the connecting circuit board 52 is at least partially embedded in the matching through hole on the plug 6, closing the through hole, thereby isolating the detection chip 53 from the detection cavity 31 below.

[0047] When the temperature and humidity transmitter is not in use, the detection chip 53 is enclosed within the accommodating cavity 32, avoiding its long-term exposure to the outside. This effectively prevents the detection chip 53 from being corroded by external environmental factors (such as dust, water vapor, corrosive gases, etc.), thereby minimizing the problem of accuracy degradation or even damage caused by long-term exposure, extending the service life of the detection chip 53, and ensuring the long-term stable measurement performance of the temperature and humidity transmitter. In traditional designs, complex protective devices such as filter sleeves may be required to prevent the external environment from affecting the detection chip 53. However, by enclosing the detection chip 53 within the accommodating cavity 32 when not in use, the present design can provide effective protection for the detection chip 53 even without a filter sleeve, simplifying the structural design of the transmitter and reducing costs and maintenance difficulties. By effectively protecting the detection chip 53, measurement errors and equipment failures caused by environmental factors are reduced, and the stability and reliability of the temperature and humidity transmitter in different environments are improved, ensuring that it can operate accurately and normally when needed, providing reliable temperature and humidity data support for related systems.

[0048] Example 2, refer to Figure 1-Figure 5The guide and separation components include an air guide shell 4, a water baffle 41 and a spiral sheet 8. The air guide shell 4 and the water baffle 41 are fixedly arranged on the outer wall of the probe cover 3. The water baffle 41 reduces the situation where water droplets on the top of the air guide shell 4 fall into the detection cavity 31 through the outlet 312. The spiral sheet 8 is fixedly arranged inside the detection cavity 31. The side wall of the probe cover 3 near the lower end of the spiral sheet 8 is provided with an inlet 311, and the side wall of the probe cover 3 near the upper end of the spiral sheet 8 is provided with an outlet 312. When air enters from the inlet 311, a part of the air will spirally rise along the spiral sheet 8. In this process, the air constantly collides and rubs with the spiral sheet 8, and air at different levels and flow rates is fully mixed. This can eliminate the air temperature and humidity stratification phenomenon that may exist in the air duct, make the air temperature and humidity reaching the detection chip 53 more uniform and consistent, thereby improving the accuracy of temperature and humidity measurement. The bottom of the probe cover 3 is recessed inward and is provided with a liquid guide platform 313. The middle of the liquid guide platform 313 is provided with a water leakage port 314 to deal with the moisture that may be carried in the air. When the air containing moisture enters the detection cavity 31, under the guidance of gravity and the spiral blade 8, the moisture will gather to the bottom along the spiral blade 8. The liquid guide platform 313 can guide the moisture to the water leakage port 314 for discharge, avoiding the accumulation of moisture in the detection cavity 31 and preventing it from damaging the detection chip 53 and the internal circuit, thereby ensuring the accuracy of the measurement and the normal operation of the equipment.

[0049] Furthermore, the outlet 312 and the inlet 311 are located on different sides of the probe cover 3, and the ends of the inlet 311 and the outlet 312 pass through the side wall of the probe cover 3. The direction of the air guide shell 4 is opposite to the flow direction of the air in the installation pipe 11, ensuring that the air guide shell 4 can effectively guide the air. The air guide shell 4 and the inlet 311 are on the same side. This layout allows the air to have enough travel in the detection cavity 31 to be fully mixed and separated, reducing the situation where the airflow short-circuits or flows out without being fully mixed.

[0050] It should be noted that the air guide shell 4 is inserted into the installation pipe 11 along with the probe cover 3 from the flange connection pipe of the installation pipe 11 to ensure that it will not affect the normal installation of the transmitter body. This design not only realizes the function of the diversion separation component, but also takes into account the convenience of installation, which is convenient for users to operate and maintain in actual applications. The air guide shell 4 can cover most of the cross-section of the installation pipe 11. This design can effectively block and change the direction of the airflow, so that the air flows to the inlet 311. It can bring together the originally dispersed and different layers of airflow, ensure that a sufficient amount of air enters the detection cavity 31, and improve the representativeness of the detected air sample, thereby more comprehensively reflecting the actual temperature and humidity conditions in the air duct.

[0051] In this embodiment, the direction of the air guide shell 4 is opposite to the flow direction of the air in the installation pipe 11, and is on the same side as the inlet 311, and can cover most of the area of ​​the cross-section of the installation pipe 11, which enables the air guide shell 4 to effectively block and change the direction of the airflow, converge the originally more dispersed and different layers of airflow, and guide the air to flow to the inlet 311, ensuring that a sufficient amount of air enters the detection cavity 31. After the air enters the detection cavity 31 from the inlet 311, a part of the air will perform a spiral upward motion along the spiral blade 8 fixed inside the detection cavity 31. In this process, the air constantly collides and rubs with the spiral blade 8, prompting the air of different levels and flow rates to be fully mixed, effectively eliminating the air temperature and humidity stratification phenomenon that may exist in the air duct, and making the air temperature and humidity reaching the detection chip 53 more uniform and consistent.

[0052] The outlet 312 and the inlet 311 are located on different sides of the probe cover 3, and the ends of the inlet 311 and the outlet 312 pass through the side wall of the probe cover 3. This layout allows the air to have enough travel in the detection chamber 31 to be fully mixed and separated, reducing the situation where the air flow short-circuits or flows out without being fully mixed, ensuring that the temperature and humidity of the air flowing out of the detection chamber 31 is more stable and more representative; the water baffle 41 is fixedly set on the outer wall of the probe cover 3, reducing the occurrence of water droplets on the top of the air guide shell 4 falling into the detection chamber 31 through the outlet 312, further ensuring the dryness of the internal environment of the detection chamber 31.

[0053] The airflow is guided by the air guide shell 4, the air is mixed by the spiral blades 8, and the inlet 311 and the outlet 312 are reasonably arranged, so that the temperature and humidity of the air reaching the detection chip 53 are more uniform, eliminating the temperature and humidity stratification phenomenon and the influence of uneven airflow, thereby significantly improving the accuracy of temperature and humidity measurement, and providing reliable data support for subsequent environmental control and data analysis; the air guide shell 4 covers most of the area of ​​the cross-section of the installation pipe 11, and can gather a large amount of airflow of different layers into the detection cavity 31, thereby improving the representativeness of the detected air sample, so that the measurement results more comprehensively reflect the actual temperature and humidity conditions in the air duct, and help to more accurately grasp and control the environmental parameters in the air duct; the inlet 311 and the outlet 312 are located on different sides of the probe cover 3 and pass through the side wall, and the setting of the spiral blades 8 jointly optimize the path and movement mode of the airflow in the detection cavity 31, so that the air can be fully mixed and separated, reducing unreasonable flow conditions such as airflow short-circuiting, and ensuring the efficiency and stability of the entire diversion and separation process.

[0054] When the air containing moisture enters the detection chamber 31 from the inlet 311, it makes a spiral upward motion along the spiral blade 8. During this process, the gas-liquid mixture will be affected by centrifugal force. Since the density of the liquid is greater than that of the gas, under the influence of centrifugal force, the liquid is more easily thrown to the outside of the spiral blade 8, while the gas is relatively concentrated in the inner area of ​​the spiral blade 8. This centrifugal separation effect enables the initial separation of gas and liquid, creating favorable conditions for the subsequent discharge of moisture; in the spiral ascent process, the liquid thrown to the outside of the spiral blade 8 by the centrifugal force will flow downward along the surface of the spiral blade 8 under the action of gravity. The shape and inclination angle design of the spiral blade 8 enable the liquid to move more smoothly to the bottom of the probe cover 3, further enhancing the effect of gas-liquid separation. At the same time, the upward-flowing gas continues to rise along the inner side of the spiral blade 8, realizing further separation of gas and liquid in the vertical direction.

[0055] Under the guidance of gravity and the spiral blade 8, moisture will gather to the bottom along the spiral blade 8. The bottom of the probe cover 3 is recessed and provided with a liquid guide platform 313. The liquid guide platform 313 can guide the moisture to the leakage port 314 running through the middle thereof for discharge, thereby avoiding the accumulation of moisture in the detection cavity 31. The setting of the spiral blade 8 makes the movement path of the gas-liquid mixture in the detection cavity 31 longer, and increases the residence time of the gas-liquid mixture in the cavity, which allows the gas and liquid more time to separate, thereby improving the efficiency of gas-liquid separation. Compared with the case where there is no spiral blade 8, the gas-liquid mixture can complete the separation process more fully, reducing the possibility of liquid flowing out with the gas.

[0056] By promoting gas-liquid separation through the spiral blade 8, the moisture content entering the detection area of ​​the detection chip 53 can be reduced, and the interference of moisture on the detection chip 53 can be avoided, thereby improving the accuracy of temperature and humidity measurement. The presence of moisture may affect the detection chip 53's perception of temperature and humidity, resulting in deviations in the measurement results. Gas-liquid separation can effectively reduce this influence and ensure the reliability of the measurement data; the gas-liquid separation achieved by the spiral blade 8, combined with the drainage function of the liquid guide platform 313 and the leakage port 314, reduces the residue and flow of liquid in the detection cavity 31, helps to protect the detection chip 53 and the internal circuit, can better prevent liquid from invading equipment components, extend the service life of the temperature and humidity transmitter, and reduce maintenance costs.

[0057] Example 3, refer to Figure 4-13The sealing and cleaning assembly includes an annular airbag 9, a connecting rod 7 fixedly connected to the bottom end of the connecting circuit board 52, and a placement cavity 1 61 and a placement cavity 2 65 set in the plug 6. The side walls of the connecting rod 7 are fixedly connected to two U-shaped rods 71, and the bottom wall of the connecting rod 7 is fixedly connected to a screw 72. The annular airbag 9 is fixedly set in the placement cavity 1 61, and a cleaning wiper 651 is set in the placement cavity 2 65. The middle part of the U-shaped rod 71 facing the connecting rod 7 is fixedly connected to a top block 711, and the top end of the U-shaped rod 71 is fixedly connected to a pressure ring 712. The center of the spiral sheet 8 is provided with a through hole matching the screw 72 to ensure that the screw 72 can pass through smoothly.

[0058] Furthermore, a sliding groove 62 matching the U-shaped rod 71 and a connecting groove 64 matching the pressure ring 712 are provided in the plug 6. The upper end of the connecting groove 64 is connected to the bottom of the placement cavity 61, and the sliding groove 62 is connected to the connecting groove 64 on the same side. An upper through groove 63 matching the pressure ring 712 is provided on the upper side wall of the plug 6 to ensure that when the connecting rod 7 moves with the connecting circuit board 52, the pressure ring 712 and the top block 711 can be in normal contact with the annular airbag 9.

[0059] It should be noted that the cleaning wipe 651 is annularly arranged. When the detection chip 53 is located in the detection cavity 31, the lower side wall of the pressure ring 712 is against the upper side wall of the annular airbag 9. At this time, the side wall of the annular airbag 9 is tightly against the outer side wall of the connecting circuit board 52 above the detection chip 53. When the detection chip 53 is located in the accommodating cavity 32, the top of the top block 711 is against the lower side wall of the annular airbag 9. At this time, the side wall of the annular airbag 9 is tightly against the outer side wall of the connecting circuit board 52 below the detection chip 53, thereby realizing reliable sealing of different working positions of the detection chip 53. This two-way sealing design protects the electronic components and circuits in the accommodating cavity 32 in all directions, ensures its stable working environment, and avoids performance degradation or damage caused by interference from external factors. The cleaning wipe 651 is a sponge block. The cleaning wipe 651 can During the position switching process of the detection chip 53, full contact is achieved with the annular surface of the detection chip 53 to ensure that all parts of the surface of the detection chip 53 can be effectively cleaned. This annular design can fully cover the surface of the detection chip 53, remove dust, water vapor and impurities attached to it, and ensure that the detection accuracy and performance of the detection chip 53 are not affected. The annular airbag 9 is in an unsaturated state when the top block 711 and the pressure ring 712 are not in contact with the side wall of the annular airbag 9. This design enables the annular airbag 9 to flexibly deform under the action of the top block 711 or the pressure ring 712 according to the position change of the detection chip 53, so that it is always tightly fitted with the connecting circuit board 52 to achieve a reliable sealing effect. Regardless of the working state, the effectiveness of the seal can be guaranteed to adapt to the requirements of different working scenarios.

[0060] In this embodiment, when the detection chip 53 needs to move down into the detection cavity 31, the connecting circuit board 52 will move down, driving the connecting rod 7 to move downward. At this time, the U-shaped rod 71 on the side wall of the connecting rod 7 also moves down together, and the lower side wall of the pressure ring 712 is against the upper side wall of the annular airbag 9. The annular airbag 9 is squeezed and expanded. Under the squeezing action of the pressure ring 712, the annular airbag 9 is deformed, and its side wall is tightly fitted with the outer wall of the connecting circuit board 52 above the detection chip 53, thereby achieving sealing of the accommodating cavity 32 when the detection chip 53 is working. This can effectively prevent external air, dust, water vapor and other impurities from entering the accommodating cavity 32, thereby avoiding interference and damage to the electronic components and circuits in the accommodating cavity 32.

[0061] When the detection chip 53 moves upward into the accommodating cavity 32, the connecting circuit board 52 moves upward and the U-shaped rod 71 also rises. At this time, the top of the top block 711 abuts against the lower side wall of the annular airbag 9. The annular airbag 9 is squeezed and expanded, and its side wall abuts against the outer side wall of the connecting circuit board 52 below the detection chip 53, thereby achieving sealing of the accommodating cavity 32 when the detection chip 53 is not working.

[0062] This bidirectional sealing design ensures that whether the detection chip 53 is in operation (within the detection cavity 31) or inoperative (within the accommodating cavity 32), the accommodating cavity 32 is reliably sealed and protected, preventing the ingress of impurities such as air, dust, and moisture, which could interfere with and damage the electronic components and circuits within the accommodating cavity 32. This extends the service life of the electronic components and ensures the stable performance and measurement accuracy of the temperature and humidity transmitter.

[0063] In the process of switching the position of the detection chip 53 between the detection chamber 31 and the accommodating chamber 32, the connecting rod 7 drives the U-shaped rod 71 to slide along the slide groove 62 in the plug 6, and the cleaning wiper 651 located in the placement chamber 2 65 will contact the surface of the detection chip 53. Since the cleaning wiper 651 is a sponge block, it has good adsorption and wiping capabilities, and can effectively remove dust, water vapor, impurities and other pollutants attached to the surface of the detection chip 53, keeping these components clean. The pollutants on the surface of the detection chip 53 may affect its sensing accuracy of temperature and humidity. By cleaning in time, the accuracy of temperature and humidity measurement can be improved, and the measurement performance of the temperature and humidity transmitter can be guaranteed; at the same time, the screw 72 at the bottom of the connecting rod 7 will also move accordingly. In this process, the thread of the screw 72 will touch the spiral piece 8. Since the two are in direct contact, the kinetic energy of the movement of the screw 72 will The force is transmitted to the spiral piece 8 through the contact point. The transmission of this force breaks the original static state of the spiral piece 8, so that it obtains a certain amount of energy, thereby generating vibration. During the working process of the spiral piece 8, due to the functions of guiding the airflow and gas-liquid separation, impurities (such as water droplets, dust, etc.) will inevitably adhere to its surface, and the vibration can make the impurities attached to the surface of the spiral piece 8 be affected by external force, breaking the adhesion between the impurities and the spiral piece 8. For impurities such as water droplets, vibration can cause them to gather into larger water droplets, which are more likely to fall off from the spiral piece 8 under the action of gravity, thereby realizing the cleaning of the spiral piece 8 and preventing the accumulation of impurities in the spiral piece 8 from affecting its guiding and mixing effects on the airflow. This helps to maintain the normal operation of the diversion and separation component and ensure that the air entering the detection cavity 31 can be fully mixed and separated, thereby indirectly improving the accuracy of temperature and humidity measurement.

[0064] It should be noted that any object has its own natural frequency, and the spiral piece 8 is no exception. When the thread of the screw 72 touches the spiral piece 8, if the frequency of the applied force is close to or equal to the natural frequency of the spiral piece 8, a resonance phenomenon will be triggered. The resonance will significantly increase the vibration amplitude of the spiral piece 8. Even if the force applied by the screw 72 is relatively small, the resonance effect can cause the spiral piece 8 to vibrate significantly, thereby more effectively cleaning impurities; and the spiral piece 8 is usually made of a material with a certain elasticity. When the thread of the screw 72 touches the spiral piece 8, the spiral piece 8 will undergo elastic deformation under the action of the force, and the stress inside the material will continue to change with the generation of elastic deformation. When the force disappears, the material will try to return to its original shape. This elastic recovery process will cause the spiral piece 8 to vibrate. This vibration based on the elasticity of the material is maintained and strengthened under the continuous contact of the screw 72.

[0065] In actual use, various pollutants and water vapor may exist in the air duct. The two-way sealing design ensures that the accommodating cavity 32 can be reliably sealed regardless of whether the detection chip 53 is in working or non-working state, effectively preventing the entry of impurities such as external air, dust, and water vapor, avoiding corrosion, short circuit and other damage to key components such as the analysis and processing module 21 in the cavity, extending the service life of electronic components, and ensuring the stable performance and measurement accuracy of the temperature and humidity transmitter; when the position of the detection chip 53 is switched, the cleaning wiper 651 contacts the surface of the detection chip 53, and uses the good adsorption and wiping ability of the sponge block to remove surface dust, water vapor and other pollutants, thereby improving the sensing accuracy of the detection chip 53 for temperature and humidity, and ensuring measurement performance; at the same time, when the screw 72 moves, the thread touches the spiral piece 8 to cause it to vibrate, which can break the adhesion between impurities and the spiral piece 8, prompting water droplets to gather into large water droplets and then fall off under the action of gravity, thereby cleaning the spiral piece 8, preventing impurities from accumulating and affecting its guiding and mixing effect on the airflow, maintaining the normal operation of the diversion and separation component, and indirectly improving the accuracy of temperature and humidity measurement.

[0066] It should be noted that the specific model and specifications of the detection chip 53 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0067] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A duct-type temperature and humidity transmitter, comprising a transmitter body and a mounting pipe (11), wherein the transmitter body is composed of a display screen (1), a probe rod (2), a detection chip (53) and a probe cover (3), wherein the probe rod (2) is fixed to the lower end of the display screen (1), the probe cover (3) is threadedly connected to the lower end of the probe rod (2), a mounting flange (10) is slidably connected to the probe rod (2), and a positioning bolt for limiting the mounting flange (10) is provided on the mounting flange (10), the transmitter body is fixedly mounted on the mounting pipe (11) through the mounting flange (10), a plug (6) is fixedly connected to the inside of the probe cover (3), and the probe cover (3) is divided from top to bottom by the plug (6) into two areas: a receiving chamber (32) and a detection chamber (31), wherein the transmitter body is fixedly mounted on the mounting pipe (11) through the mounting flange (10), and a plug (6) is fixedly connected to the inside of the probe cover (3). The probe cover (3) is divided into two areas from top to bottom by the plug (6): a receiving chamber (32) and a detection chamber (31), wherein the transmitter body is fixedly mounted on the mounting pipe (11) through the mounting flange (10), and a plug (6) is fixedly connected to the inside of the probe cover (3). The ... by the plug (6). Also includes: Detection component: the detection component is arranged inside the probe cover (3), and the detection component is used to switch the working state of the detection chip (53); Diversion and separation components: the diversion and separation components are arranged on the outside and inside of the probe cover (3), and the diversion and separation components can absorb air from different layers in the installation pipe (11) and separate and mix these air before detection; The flow guide separation assembly comprises an air guide housing (4), a water baffle (41) and a spiral blade (8); the air guide housing (4) and the water baffle (41) are fixedly arranged on the outer wall of the probe cover (3); the spiral blade (8) is fixedly arranged inside the detection cavity (31); an inlet (311) is provided on the side wall of the probe cover (3) near the lower end of the spiral blade (8); and an outlet (312) is provided on the side wall of the probe cover (3) near the upper end of the spiral blade (8); Sealing and cleaning component: The sealing and cleaning component is arranged inside the probe cover (3), and the sealing and cleaning component can ensure that the interior of the accommodating cavity (32) is relatively sealed, and cleans the surface of the detection chip (53) and the diversion separation component when the state of the detection chip (53) is switched; The sealing cleaning assembly comprises an annular airbag (9), a connecting rod (7) fixedly connected to the bottom end of the connecting circuit board (52), and a placement cavity 1 (61) and a placement cavity 2 (65) provided in the plug (6), the side wall of the connecting rod (7) is fixedly connected to two U-shaped rods (71), the bottom wall of the connecting rod (7) is fixedly connected to a screw (72), the annular airbag (9) is fixedly provided in the placement cavity 1 (61), the placement cavity 2 (65) is provided with a cleaning wiper (651), the U-shaped rod (71) facing the connecting rod (7) is fixedly connected to the bottom wall of the connecting rod (7), and the cleaning wiper (651) is provided in the placement cavity 1 (61). ) is fixedly connected to a top block (711) in the middle, the top of the U-shaped rod (71) is fixedly connected to a pressure ring (712), and the center of the spiral piece (8) is provided with a through hole matching the screw (72); when the detection chip (53) switches the working state, the screw (72) at the bottom of the connecting rod (7) will also move accordingly, and the thread of the screw (72) will touch the spiral piece (8), causing it to vibrate, which can make impurities attached to the surface of the spiral piece (8) more easily fall off from the spiral piece (8), thereby achieving the cleaning of the spiral piece (8).

2. The duct type temperature and humidity transmitter according to claim 1, characterized in that: The detection assembly includes an electric telescopic rod (5) fixedly connected to the inside of the probe cover (3), a push rod (51) is slidably connected to the inside of the electric telescopic rod (5), the outer end of the push rod (51) is threadedly connected to a connecting circuit board (52), the middle of the connecting circuit board (52) is connected to a wire (54), and a through hole matching the wire (54) is provided on the mounting portion of the electric telescopic rod (5), and the detection chip (53) is fixedly arranged above the bottom end surface of the connecting circuit board (52) and is electrically connected to the connecting circuit board (52).

3. The duct type temperature and humidity transmitter according to claim 2, characterized in that: An analysis and processing module (21) is provided inside the probe rod (2), the other end of the wire (54) is electrically connected to the analysis and processing module (21), and the analysis and processing module (21) is electrically connected to the display screen (1).

4. The duct type temperature and humidity transmitter according to claim 2, characterized in that: The plug (6) is provided with a through hole matching the connection circuit board (52), the detection chip (53) is arranged in a ring shape, the plug (6) is elastically arranged, and when the detection chip (53) is in the accommodating cavity (32), the bottom end of the connection circuit board (52) is at least partially embedded in the through hole.

5. The duct type temperature and humidity transmitter according to claim 1, characterized in that: The bottom of the probe cover (3) is recessed inwardly and is provided with a liquid guide platform (313), and a water leakage port (314) is provided through the middle of the liquid guide platform (313).

6. The duct type temperature and humidity transmitter according to claim 1, characterized in that: The outlet (312) and the inlet (311) are located on different sides of the probe cover (3); the ends of the inlet (311) and the outlet (312) pass through the side wall of the probe cover (3); the direction of the air guide shell (4) is opposite to the flow direction of the air in the installation pipe (11); and the air guide shell (4) and the inlet (311) are located on the same side.

7. The duct type temperature and humidity transmitter according to claim 1, characterized in that: The air guide shell (4) is inserted into the installation pipe (11) along with the probe cover (3) from the flange connection pipe of the installation pipe (11), and the air guide shell (4) can cover most of the cross-section of the installation pipe (11).

8. The duct type temperature and humidity transmitter according to claim 1, characterized in that: The plug (6) is provided with a sliding groove (62) matching the U-shaped rod (71) and a connecting groove (64) matching the pressure ring (712). The upper end of the connecting groove (64) is connected to the bottom of the placement cavity (61). The sliding groove (62) is connected to the connecting groove (64) on the same side. The upper side wall of the plug (6) is provided with an upper through groove (63) matching the pressure ring (712).

9. The duct type temperature and humidity transmitter according to claim 1, characterized in that: The cleaning wipe (651) is annularly arranged. When the detection chip (53) is located in the detection cavity (31), the lower side wall of the pressure ring (712) abuts against the upper side wall of the annular airbag (9). At this time, the side wall of the annular airbag (9) abuts against the outer side wall of the connecting circuit board (52) above the detection chip (53). When the detection chip (53) is located in the accommodating cavity (32), the top of the top block (711) abuts against the lower side wall of the annular airbag (9). At this time, the side wall of the annular airbag (9) abuts against the outer side wall of the connecting circuit board (52) below the detection chip (53). The cleaning wipe (651) is a sponge block. When the top block (711) and the pressure ring (712) are not in contact with the side wall of the annular airbag (9), the annular airbag (9) is in an unsaturated state.

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