Dew-point instrument verification protection device

Abstract

The utility model belongs to the technical field of dew-point instrument verification protection devices, and particularly relates to a dew-point instrument verification protection device which comprises a dew-point instrument body. An auxiliary protection device is mounted on the structural cavity; an air inlet cavity is formed in the air inlet pipe; a lifting mechanism is mounted at the top of the structural cavity; a lifting block is fixedly connected to the bottom of the lifting rod; a telescopic mechanism is mounted in the mounting hole; the bottom of the connecting piece is fixedly connected with a fixed circular plate; a rotating shaft is rotationally mounted in the center of the fixed circular plate; the outer part of the section of the rotating shaft is fixedly connected with a scraping plate; an elastic buckle is fixedly connected to the vertical face, close to the air inlet pipe, of the fixed circular plate in a surrounding mode. An air suction pipe is mounted at the position, close to the acting end, of the scraper; an air suction port is formed in the structural surface, close to the acting end of the scraper, of the air suction pipe; and through the effect of the auxiliary protection device, the effect of automatically cleaning the structural member at regular intervals is achieved, and the protection effect on the dew-point instrument verification structural member is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of dew point meter verification protection devices, in particular to a dew point meter verification protection device. Background Art

[0002] A dew point meter is an instrument used to measure the water vapor content in the air. It is usually used in industries, laboratories, meteorology, and other fields. It can measure the dew point temperature in the air, that is, the temperature at which the air begins to condense water vapor into liquid water at a specific temperature. The dew point meter may be used to detect and protect equipment or the environment in some specific environments.

[0003] A Chinese patent with the publication number CN209513695U discloses a protective device for a dew point meter sensor probe, which includes a cylindrical sleeve, a PTFE microporous membrane, and a rigid protective net; the cylindrical sleeve is detachably mounted on the outside of the dew point meter sensor probe and completely wraps the dew point meter sensor probe; a number of ventilation windows are circumferentially provided on the middle wall of the cylindrical sleeve, and the PTFE microporous membrane is provided on the ventilation surface of the ventilation window; the rigid protective net is provided on the rear end face of the cylindrical sleeve and is adapted to the shape and size of the rear end face of the cylindrical sleeve. The utility model can be connected to the external atmosphere through the PTFE microporous membrane, and can effectively filter out suspended matter and particles in the air through water vapor, thereby protecting the interior of the sensor probe from being kept clean for a long time and improving the working stability and measurement accuracy of the dew point meter;

[0004] When the protective device of the dew point meter sensing probe is in use, the air inlet pipe in the gas passage system needs to be cleaned regularly so that the gas to be measured can be smoothly guided to flow through the sensor for measurement. However, the existing cleaning operation is relatively complicated, requiring the disassembly of more structural parts and requiring additional auxiliary cleaning equipment for cleaning, resulting in low cleaning efficiency of the air inlet pipe in the gas passage system. Therefore, a dew point meter calibration protective device is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art and solve some existing problems of dew point meter calibration protection devices, the utility model proposes a dew point meter calibration protection device.

[0006] The technical solution adopted by the utility model to solve the technical problem is as follows: a dew point meter calibration protection device described in the utility model comprises a dew point meter body; a structural cavity is opened on the side of the dew point meter body; a mesh plate is installed on the dew point meter body at the position where the opening of the structural cavity is opened; an auxiliary protection device is installed on the structural cavity; the auxiliary protection device comprises an air intake pipe; an air intake pipe is installed inside the dew point meter body; the active end of the air intake pipe is located inside the structural cavity; an air intake cavity is opened inside the air intake pipe; a lifting mechanism is installed on the top of the structural cavity; a lifting rod is installed on the bottom of the lifting mechanism; a lifting block is fixedly connected to the bottom of the lifting rod;

[0007] A mounting hole is provided on the vertical surface of the lifting block; a telescopic mechanism is installed inside the mounting hole; a telescopic rod is installed at the active end of the telescopic mechanism; a connecting piece is fixedly connected to the end of the telescopic rod; a fixed circular plate is fixedly connected to the bottom of the connecting piece; a rotating shaft is rotatably installed at the center position of the fixed circular plate; a scraper is fixedly connected to the outside of the cross section of the rotating shaft; effective cleaning of the air intake cavity inside the air intake pipe is achieved.

[0008] Preferably, a small motor is installed on the outer side surface of the fixed circular plate; the output shaft end of the small motor passes through the fixed circular plate and is connected to the end of the rotating shaft; thus providing power for the rotation of the rotating shaft.

[0009] Preferably, an elastic buckle is fixedly connected around the vertical surface of the fixed circular plate close to the air intake pipe; the horizontal center line of the elastic buckle composition range coincides with the horizontal center line of the rotating shaft; thereby ensuring that the fixed circular plate can be smoothly clamped at the port of the air intake pipe.

[0010] Preferably, the cross-sectional diameter of the scraper's rotation trajectory is the same as the cross-sectional diameter of the air inlet cavity; when the lifting rod is lowered to the lowest position, the horizontal center line of the fixed circular plate coincides with the horizontal center line of the air inlet cavity; when the telescopic rod is retracted to the shortest distance, the body of the fixed circular plate contacts the end of the air inlet pipe, so that the fixed circular plate can operate smoothly.

[0011] Preferably, an air suction pipe is installed near the working end of the scraper; an air suction port is opened on the structural surface of the air suction pipe near the working end of the scraper, so that the scraped dust can be sucked.

[0012] Preferably, a collecting box is installed on the side of the fixed circular plate on which the small motor is installed; a connecting pipe is installed on the collecting box; the end of the connecting pipe is connected to the suction pipe; an air pump is installed on the connecting pipe; so that the suction pipe can operate smoothly.

[0013] The utility model is beneficial in that:

[0014] The utility model adopts the structural design of the auxiliary protection device, when it is necessary to clean and protect the intake cavity inside the intake pipe, the lifting mechanism is started, the lifting rod drives the lifting block to move downward, so that the fixed circular plate moves downward to the lowest position, then, the telescopic mechanism inside the mounting hole is operated, and the telescopic rod drives the connecting piece and the fixed circular plate to move toward the intake pipe. During this process, the rotating shaft and the scraper are inserted into the interior of the intake cavity, and the elastic buckle is clamped on the outer arc surface of the intake pipe. Then, the small motor is started, and the rotating shaft drives the scraper to rotate, so that the dust on the inner wall surface of the intake cavity is scraped off, and the effect of automatic cleaning of the structural parts is achieved regularly, and the steps of the cleaning operation are simplified. At the same time, the vacuum pump is started, and the suction port on the suction pipe generates suction, which quickly sucks the scraped dust into the suction pipe and enters the interior of the collection box through the connecting pipe, so that the dust is prevented from entering the gas passage system, the protective effect of the dew point meter calibration structural parts is achieved, and the smooth operation of the intake pipe is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0016] Figure 1 It is an isometric structural diagram;

[0017] Figure 2 It is a schematic diagram of the structure of the fixed circular plate;

[0018] Figure 3 for Figure 1 A schematic diagram of the enlarged structure at A in the middle;

[0019] Figure 4 for Figure 2 Schematic diagram of the enlarged structure at point B in the middle.

[0020] In the figure: 1. dew point meter body; 2. structural cavity; 3. mesh plate; 401. air inlet pipe; 402. air inlet cavity; 403. lifting mechanism; 404. lifting rod; 405. lifting block; 406. mounting hole; 407. telescopic mechanism; 408. telescopic rod; 409. connecting piece; 410. fixed circular plate; 411. elastic buckle; 412. rotating shaft; 413. scraper; 414. small motor; 415. suction pipe; 416. suction port; 417. collecting box; 418. connecting pipe; 419. vacuum pump. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 As shown, a dew point meter calibration protection device comprises a dew point meter body 1; a structural cavity 2 is opened on the side of the dew point meter body 1; a mesh plate 3 is installed at the position where the opening of the structural cavity 2 is opened on the dew point meter body 1; an auxiliary protection device is installed on the structural cavity 2; the auxiliary protection device comprises an air inlet pipe 401; an air inlet pipe 401 is installed inside the dew point meter body 1; the active end of the air inlet pipe 401 is located inside the structural cavity 2; an air inlet cavity 402 is opened inside the air inlet pipe 401; a lifting mechanism 403 is installed on the top of the structural cavity 2; a lifting rod 404 is installed at the bottom of the lifting mechanism 403; a lifting block 405 is fixedly connected to the bottom of the lifting rod 404;

[0023] A mounting hole 406 is provided on the vertical surface of the lifting block 405; a telescopic mechanism 407 is installed inside the mounting hole 406; a telescopic rod 408 is installed at the working end of the telescopic mechanism 407; a connecting piece 409 is fixedly connected to the end of the telescopic rod 408; a fixed circular plate 410 is fixedly connected to the bottom of the connecting piece 409; a rotating shaft 412 is rotatably installed at the center of the fixed circular plate 410; a scraper 413 is fixedly connected to the outside of the cross section of the rotating shaft 412; a small motor 414 is installed on the outer surface of the fixed circular plate 410; the output shaft end of the small motor 414 passes through the fixed circular plate 410 and the rotating shaft The ends of the fixed circular plate 410 and the air inlet 401 are connected; an elastic buckle 411 is fixedly connected around the vertical surface of the fixed circular plate 410 close to the air inlet pipe 401; the horizontal center line of the range of the elastic buckle 411 coincides with the horizontal center line of the rotating shaft 412; the cross-sectional diameter of the rotating track of the scraper 413 is the same as the cross-sectional diameter of the air inlet cavity 402; when the lifting rod 404 is lowered to the lowest position, the horizontal center line of the fixed circular plate 410 coincides with the horizontal center line of the air inlet cavity 402; when the telescopic rod 408 is retracted to the shortest distance, the plate body of the fixed circular plate 410 contacts the end of the air inlet pipe 401;

[0024] When working, a dew point meter is an instrument used to measure the water vapor content in the air. It is usually used in industries, laboratories, meteorology and other fields. It can measure the dew point temperature in the air, that is, the temperature at which air begins to condense water vapor into liquid water at a specific temperature. The dew point meter may be used to detect and protect equipment or the environment in some specific environments. When the protective device of the above-mentioned dew point meter sensing probe is in use, it is necessary to regularly clean the air intake pipe in the gas passage system so as to smoothly guide the measured gas to flow through the sensor for measurement. However, the existing cleaning operation is relatively complicated, requiring the disassembly of more structural parts, and additional auxiliary cleaning equipment is required for cleaning, resulting in low cleaning efficiency of the air intake pipe in the gas passage system. The present application uses an auxiliary protective device to perform the operation. When the protective device of the dew point meter sensing probe is in use, it is necessary to regularly clean the air intake pipe in the gas passage system so as to smoothly guide the measured gas to flow through the sensor for measurement. However, the existing cleaning operation is relatively complicated, requiring the disassembly of more structural parts, and requiring additional auxiliary cleaning equipment for cleaning. As a result, the cleaning efficiency of the air intake pipe in the gas passage system is relatively low. The present application performs the operation through an auxiliary protective device. When the air intake cavity 402 inside the air intake pipe 401 is to be cleaned and protected, the lifting mechanism 403 is started, and the lifting rod 404 drives the lifting block 405 to move downward, so that the fixed circular plate 410 moves downward to the lowest position, and then the telescopic mechanism 407 inside the mounting hole 406 operates, and the telescopic rod 408 drives the connecting piece 409 and the fixed circular plate 410 to move toward the air intake pipe 401. During this process, the rotating shaft 412 and the scraper 413 are inserted into the interior of the air intake cavity 402, and the elastic buckle 411 is clamped on the outer arc surface of the air intake pipe 401. Then, the small motor 414 is started, and the rotating shaft 412 drives the scraper 413 to rotate, so that the dust on the inner wall surface of the air intake cavity 402 is scraped off, thereby achieving the effect of regular automatic cleaning of the structural parts and simplifying the steps of the cleaning operation.

[0025] An air suction pipe 415 is installed near the working end of the scraper 413; an air suction port 416 is opened on the structural surface of the air suction pipe 415 near the working end of the scraper 413; a collecting box 417 is installed on the side of the fixed circular plate 410 on which the small motor 414 is installed; a connecting pipe 418 is installed on the collecting box 417; the end of the connecting pipe 418 is connected to the air suction pipe 415; an air pump 419 is installed on the connecting pipe 418;

[0026] During operation, the vacuum pump 419 and the air inlet 416 on the air intake pipe 415 generate suction force, which quickly sucks the scraped dust into the air intake pipe 415 and enters the interior of the collection box 417 through the connecting pipe 418, thereby preventing dust from entering the gas passage system, realizing the protection of the dew point meter calibration structure, and ensuring the smooth operation of the air intake pipe 401.

[0027] Working principle: A dew point meter is an instrument used to measure the water vapor content in the air. It is usually used in industries, laboratories, meteorology and other fields. It can measure the dew point temperature in the air, that is, the temperature at which the air begins to condense water vapor into liquid water at a specific temperature. The dew point meter may be used to detect and protect equipment or the environment in some specific environments. When the protective device of the above-mentioned dew point meter sensing probe is in use, it is necessary to regularly clean the air intake pipe in the gas passage system so as to smoothly guide the gas to be measured to flow through the sensor for measurement. However, the existing cleaning operation is relatively complicated, requiring the disassembly of more structural parts, and additional auxiliary cleaning equipment is required for cleaning, resulting in low cleaning efficiency of the air intake pipe in the gas passage system. The present application uses an auxiliary protective device to operate. When it is necessary to clean and protect the air intake cavity 402 inside the air intake pipe 401, the lifting mechanism 403 is started, and the lifting rod 404 drives the lifting block 405 to move downward, so that the fixed circular plate 4 10 then moves downward to the lowest position, then, the telescopic mechanism 407 inside the mounting hole 406 operates, and the telescopic rod 408 drives the connecting piece 409 and the fixed circular plate 410 to move toward the air inlet pipe 401. During this process, the rotating shaft 412 and the scraper 413 are inserted into the interior of the air inlet cavity 402, and the elastic buckle 411 is clamped on the outer arc surface of the air inlet pipe 401. Then, the small motor 414 is started, and the rotating shaft 412 drives the scraper 413 to rotate, so that the air inlet cavity 402 is closed. 02 The dust on the inner wall is scraped off, which realizes the effect of regular automatic cleaning of the structural parts and simplifies the cleaning steps. At the same time, the vacuum pump 419 is started, and the suction port 416 on the suction pipe 415 generates suction to quickly suck the scraped dust into the suction pipe 415 and enter the interior of the collection box 417 through the connecting pipe 418, thereby preventing the dust from entering the gas passage system, realizing the protection of the dew point meter calibration structural parts and ensuring the smooth operation of the intake pipe 401.

[0028] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0029] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A dew point meter calibration protection device, comprising a dew point meter body (1); a structural cavity (2) is opened on the side of the dew point meter body (1); a mesh plate (3) is installed on the dew point meter body (1) at the position where the structural cavity (2) opens; an auxiliary protection device is installed on the structural cavity (2); the characteristics are: The auxiliary protection device comprises an air intake pipe (401); an air intake pipe (401) is installed inside the dew point instrument body (1); an active end of the air intake pipe (401) is located inside the structural cavity (2); an air intake cavity (402) is provided inside the air intake pipe (401); a lifting mechanism (403) is installed at the top of the structural cavity (2); a lifting rod (404) is installed at the bottom of the lifting mechanism (403); a lifting block (405) is fixedly connected to the bottom of the lifting rod (404); A mounting hole (406) is provided on the vertical surface of the lifting block (405); a telescopic mechanism (407) is installed inside the mounting hole (406); a telescopic rod (408) is installed at the active end of the telescopic mechanism (407); a connecting piece (409) is fixedly connected to the end of the telescopic rod (408); a fixed circular plate (410) is fixedly connected to the bottom of the connecting piece (409); a rotating shaft (412) is rotatably installed at the center of the fixed circular plate (410); a scraper (413) is fixedly connected to the outside of the cross section of the rotating shaft (412).

2. A dew point meter calibration protection device according to claim 1, characterized in that: A small motor (414) is installed on the outer side of the fixed circular plate (410); the end of the output shaft of the small motor (414) passes through the fixed circular plate (410) and is connected to the end of the rotating shaft (412).

3. A dew point meter calibration protection device according to claim 2, characterized in that: An elastic buckle (411) is fixedly connected around the vertical surface of the fixed circular plate (410) close to the air inlet pipe (401); the horizontal center line of the range of the elastic buckle (411) coincides with the horizontal center line of the rotating shaft (412).

4. A dew point meter calibration protection device according to claim 3, characterized in that: The cross-sectional diameter of the rotation trajectory of the scraper (413) is the same as the cross-sectional diameter of the air inlet cavity (402); when the lifting rod (404) is lowered to the lowest position, the horizontal center line of the fixed circular plate (410) coincides with the horizontal center line of the air inlet cavity (402); when the telescopic rod (408) is retracted to the shortest distance, the body of the fixed circular plate (410) contacts the end of the air inlet pipe (401).

5. A dew point meter calibration protection device according to claim 4, characterized in that: An air suction pipe (415) is installed at a position close to the working end of the scraper (413); an air suction port (416) is opened on the structural surface of the air suction pipe (415) close to the working end of the scraper (413).

6. A dew point meter calibration protection device according to claim 5, characterized in that: A collecting box (417) is installed on the side of the fixed circular plate (410) on which the small motor (414) is installed; a connecting pipe (418) is installed on the collecting box (417); the end of the connecting pipe (418) is connected to the suction pipe (415); and an air pump (419) is installed on the connecting pipe (418).

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