CN116818044B - Radar level gauge convenient to operation - Google Patents
Radar level gauge convenient to operation Download PDFInfo
- Publication number
- CN116818044B CN116818044B CN202310505188.4A CN202310505188A CN116818044B CN 116818044 B CN116818044 B CN 116818044B CN 202310505188 A CN202310505188 A CN 202310505188A CN 116818044 B CN116818044 B CN 116818044B
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- Prior art keywords
- piston
- horn antenna
- plate
- level gauge
- gear ring
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- 238000007790 scraping Methods 0.000 claims abstract description 30
- 238000004140 cleaning Methods 0.000 claims abstract description 17
- 239000000428 dust Substances 0.000 claims description 15
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 description 8
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 239000012254 powdered material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Aerials (AREA)
- Waveguide Aerials (AREA)
Abstract
The utility model relates to a radar level gauge technical field discloses a radar level gauge convenient to operation, including the level gauge body, set up in the ring flange of body one end, set up in the horn antenna of ring flange one end, be provided with cleaning device on the horn antenna, cleaning device including peg graft in horn antenna tip and with horn antenna normal running fit's piston, set up in the connecting plate of piston one side, set up on the connecting plate and with horn antenna surface sliding fit's outer scraping strip, set up in the piston upper end and with horn antenna internal surface sliding fit's interior scraping strip. The utility model has the effect of being convenient for clear up the surface of material level meter at any time, convenient next time measurement.
Description
Technical Field
The application relates to the technical field of radar level gauges, in particular to a radar level gauge convenient to operate.
Background
The radar level gauge is adapted to measure the filling level of an item contained in the tank, such as a process fluid, a granular compound and other materials. The radar level gauge is a measuring instrument based on the time travel principle, radar waves run at the speed of light, when the radar waves encounter the surface of a material, the radar waves are reflected back to be received by the instrument, and the running time of the radar waves can be converted into a level signal through electronic components.
However, in the process of implementing the related technical scheme, at least the following technical problems are found: after measuring the filling level of powdery materials in some storage tanks, the surface and the inside of a horn antenna of a level meter are easy to adhere with some impurities, and the impurities are not cleaned timely, so that the accuracy of the next measurement can be affected.
Disclosure of Invention
This application is through providing the radar level gauge convenient to operation, has solved among the prior art after measuring the filler level of powdered material in some storage tanks, and the horn antenna surface and the inside of level gauge adhere some impurity easily, untimely clearance can influence the problem of measuring precision next, has realized being convenient for clear up the surface of level gauge at any time, makes things convenient for the measurement next time.
The application provides a radar level gauge convenient to operation, including the level gauge body, set up in the ring flange of body one end, set up in the horn antenna of ring flange one end, be provided with cleaning device on the horn antenna, cleaning device including peg graft in horn antenna tip and with horn antenna normal running fit's piston, set up in the connecting plate of piston one side, set up on the connecting plate and with horn antenna surface sliding fit's outer scraping strip, set up in the piston upper end and with horn antenna internal surface sliding fit's interior scraping strip.
Further, be provided with drive arrangement on the ring flange, drive arrangement is including rotating gear ring and the drive gear that sets up in the ring flange bottom, set up in the driving motor of ring flange upper end, the gear ring cover is located outside the horn antenna and with the coaxial setting of horn antenna, gear ring and drive gear meshing, the driving motor output shaft is fixed with drive gear center, connecting plate and gear ring pass through connecting rod fixed connection.
Further, be provided with ash removal device on the gear ring, ash removal device is including setting up in the fixed column of gear ring terminal surface, setting up in the elastic sheet of fixed column one side, horn antenna's week lateral wall is provided with the lug, the lug evenly is provided with a plurality ofly along horn antenna's circumference, the tip of elastic sheet is provided with the V-arrangement shell fragment with lug surface butt.
Further, the piston is of a hollow structure, and a plurality of first through holes are formed in the top of the piston.
Further, a plurality of second through holes are formed in the bottom of the piston, a plurality of bottom plates are hinged to the bottom of the piston, and torsion springs which enable the bottom plates to be abutted to the bottom of the piston and cover the second through holes are arranged on the hinge shafts of the bottom plates.
Further, an exhaust fan is arranged in the piston and located in the center, and the front face of the exhaust fan faces the top of the piston.
Further, the first through holes and the second through holes are uniformly arranged along the circumferential direction of the piston, and the first through holes and the second through holes are in one-to-one correspondence.
Further, be provided with headstock gear and turning device between connecting plate and the gear ring, headstock gear is used for driving the vertical removal of piston, turning device is used for driving the piston upset to horn antenna one side, headstock gear includes the motor of opening and close fixed with the gear ring, sets up on the motor output shaft of opening and close threaded rod, sets up the sleeve on the connecting plate, the threaded rod peg graft in the sleeve and with sleeve threaded connection, the connecting rod includes the body of rod of being connected with the gear ring, sets up the pole cover on the connecting plate, outer scraping strip and interior scraping strip are the rubber strip.
Further, a braking cylinder which inclines to the piston from bottom to top is hinged to the connecting plate, one end of the outer scraping strip is hinged to the connecting plate, and the end part of a piston rod of the braking cylinder is hinged to the side wall of the outer scraping strip.
Further, the connecting plate includes the first plate body fixed with piston one side, the activity sets up in the second plate body of first plate body one side, pole cover and sleeve all are connected with the second plate body, turning device is including setting up first mount on the first plate body, setting up on the second plate body second mount, setting up in the pivot of first mount kept away from second mount one side, the other end of pivot passes first mount and rotates with the second mount to be connected, the cover is equipped with connecting spring in the pivot, connecting spring's both ends are fixed with first mount and second mount respectively, be connected with the spring wire on the gear ring, the other end of spring wire is kept away from one side of piston around locating in one side that is close to the piston from the pivot and is fixed, the upper end of outer strip and the bottom interval of horn antenna set up when the spring wire are in the state of stretching straight.
The technical scheme provided in the application has at least the following technical effects or advantages:
1. because cleaning device has been adopted, through driving the piston rotation, can clear up the dust impurity that the horn antenna surface adheres to, solved among the prior art after measuring the filler level of powdered material in some storage tanks, the horn antenna surface and the inside adhesion some impurity of level meter are untimely clear up, can influence the problem of measuring precision next time, realized being convenient for clear up the surface of level meter at any time, make things convenient for the measurement next time.
2. Because the driving device is adopted, the piston can be driven to rotate by taking the axis of the horn antenna as the center, and then the outer scraping strip and the inner scraping strip are driven to clean the horn antenna along the surface of the horn antenna, so that the cleanliness of the front surface of the horn antenna is improved.
3. Because the overturning device is adopted, the cleaning device is convenient to detach from the horn antenna when the level meter is required to be used for measurement, and the measurement effect is not affected.
Drawings
FIG. 1 is a schematic overall structure of an embodiment of the present application;
FIG. 2 is a schematic structural view of a cleaning device according to an embodiment of the present application;
FIG. 3 is an enlarged schematic view of FIG. 2 at A;
FIG. 4 is an enlarged schematic view at B in FIG. 2;
FIG. 5 is an enlarged schematic view of FIG. 1 at C;
fig. 6 is a schematic diagram illustrating a state that the upper end of the inner wiper strip is separated from the horn antenna in the embodiment of the present application;
FIG. 7 is a schematic diagram of the working state of the level gauge according to the embodiment of the present application;
in the figure: 1. a level gauge body; 2. a flange plate; 3. a horn antenna; 4. a cleaning device; 41. a piston; 411. a first through hole; 412. a second through hole; 413. a bottom plate; 42. a connecting plate; 421. a first plate body; 422. a second plate body; 43. an outer scraping strip; 44. an inner scraping strip; 45. a brake cylinder; 46. an exhaust fan; 5. a driving device; 51. a gear ring; 52. a drive gear; 53. a driving motor; 54. a connecting rod; 541. a rod body; 542. a rod sleeve; 55. a mounting plate; 6. an ash removal device; 61. fixing the column; 62. an elastic sheet; 63. a bump; 64. a V-shaped spring plate; 7. an opening and closing device; 71. opening and closing a motor; 72. a threaded rod; 73. a sleeve; 8. a turnover device; 81. a first fixing frame; 82. the second fixing frame; 83. a rotating shaft; 84. a connecting spring; 85. spring wire.
Detailed Description
The embodiment of the application discloses provides a radar level gauge convenient to operation, rotates through driving piston 41, can clear up the dust impurity that horn antenna 3 surface adheres to, has solved among the prior art after measuring the filler level of powdered material in some storage tanks, and horn antenna 3 surface and inside of level gauge adhere to some impurity easily, untimely clearance can influence the problem of measuring precision next time, has realized being convenient for clear up the surface of level gauge at any time, makes things convenient for measuring next time.
In order to better understand the above technical solutions, the following detailed description will refer to the accompanying drawings and specific embodiments.
Referring to fig. 1, a radar level gauge convenient to operate includes a level gauge body 1, a flange plate 2, and a horn antenna 3, wherein the flange plate 2 is fixedly installed at one end of the level gauge body, the horn antenna 3 is fixedly installed at the other end surface of the flange plate 2, and the axis of the horn antenna 3 coincides with the center of the flange plate 2. The cleaning device 4 is arranged on the horn antenna 3, so that dust and impurities can be removed by cleaning the inner side and the outer side of the horn antenna 3, and the accuracy of the level meter during measurement is improved.
Referring to fig. 1 and 2, the cleaning device 4 includes a piston 41, a connecting plate 42, an outer scraping bar 43 and an inner scraping bar 44, the piston 41 is inserted into the end of the horn antenna 3 far away from the flange 2, and the top of the piston 41 is conical, so as to be conveniently inserted into the horn antenna 3. The piston 41 is in a rotary fit with the inside wall of the feedhorn 3. The connecting plate 42 is fixed at a position close to the bottom on one side of the piston 41, the connecting plate 42 comprises a first plate 421 and a second plate 422, one side of the first plate 421 is fixedly connected with the side wall of the piston 41 and the position close to the bottom, and the second plate 422 is movably mounted on one side of the first plate 421. The connection plate 42 has the outer wiper 43 mounted thereon, and specifically, the outer wiper 43 is connected with the first plate body 421. An inner scraping strip 44 is fixed at the upper end of the piston 41, and the outer scraping strip 43 and the inner scraping strip 44 are rubber strips. The outer wiper 43 is attached to the outer surface of the feedhorn 3 and the inner wiper 44 is attached to the inner surface of the feedhorn 3. The first plate body 421 of the connecting plate 42 is hinged with a brake cylinder 45 which is inclined to the piston 41 from bottom to top, one end of the outer scraping strip 43 is hinged with the connecting plate 42, and the rod end of the piston 41 of the brake cylinder 45 is hinged with the side wall of the outer scraping strip 43. The brake cylinder 45 is mounted on the first plate 421. The outer scraping strip 43 and the inner scraping strip 44 can be driven to rotate by driving the piston 41 to rotate by taking the axis of the horn antenna 3 as a central line, so that the inner surface and the outer surface of the horn antenna 3 are cleaned.
Referring to fig. 2 and 3, a driving device 5 is mounted on the flange 2, so as to automatically drive the piston 41 to rotate, and clean the surface of the horn antenna 3. The driving device 5 comprises a gear ring 51, a driving gear 52 and a driving motor 53, wherein the gear ring 51 is rotatably arranged on the lower end face of the flange plate 2, the gear ring 51 is sleeved outside the horn antenna 3 and is coaxially arranged with the horn antenna 3, the driving gear 52 is rotatably connected to the lower end face of the flange plate 2 and is positioned on one side of the gear ring 51, the gear ring 51 is meshed with the driving gear 52, the driving motor 53 is fixedly arranged on the upper end face of the flange plate 2, an output shaft of the driving motor 53 penetrates through the flange plate 2 and is fixedly connected with the center of the driving gear 52, and the connecting plate 42 is fixedly connected with the gear ring 51 through a connecting rod 54. The gear ring 51 is driven to rotate by the driving motor 53, and then the connecting plate 42 is driven to rotate around the circumference of the horn antenna 3 by the connecting rod 54, so that the surfaces of the horn antenna 3 can be cleaned by the inner scraping strip 44 and the outer scraping strip 43.
Referring to fig. 2 and 3, in order to further improve the cleaning effect of dust adhesion on the feedhorn 3, the gear ring 51 is provided with the ash removing device 6, the ash removing device 6 comprises a fixing column 61 and an elastic sheet 62, the fixing column 61 is fixedly arranged on the end face of the gear ring 51, the circumferential side wall of the feedhorn 3 is fixedly provided with a plurality of protruding blocks 63, the protruding blocks 63 are uniformly arranged along the circumferential direction of the feedhorn 3, one end of the elastic sheet 62 is fixedly connected with the fixing column 61, the other end of the elastic sheet 62 is provided with a V-shaped elastic sheet 64, and the V-shaped elastic sheet 64 is in surface abutting connection with the protruding blocks 63. When the gear ring 51 rotates, the V-shaped elastic sheet 64 is driven to rotate along the circumferential direction of the horn antenna 3, so that the V-shaped elastic sheet 64 is in contact with different bumps 63 to generate slight vibration, and dust on the surface of the horn antenna 3 vibrates under the elastic vibration of the V-shaped elastic sheet 64, so that the dust is separated from the surface of the horn antenna 3.
Referring to fig. 4, 5 and 6, an opening and closing device 7 is installed between the connection plate 42 and the gear ring 51, and can enable the piston 41 to be separated from the horn antenna 3 when a level gauge is required for measurement. The opening and closing device 7 comprises an opening and closing motor 71, a threaded rod 72 and a sleeve 73, wherein the opening and closing motor 71 is fixedly arranged on the gear ring 51 and positioned on the other side of the ash cleaning device 6. Specifically, a mounting plate 55 is fixed to one side of the gear ring 51, and an on-off motor 71 is fixedly connected to the mounting plate 55. One end of the threaded rod 72 is fixedly arranged on an output shaft of the opening and closing motor 71, the other end of the threaded rod extends vertically downwards, a sleeve 73 is fixedly arranged on the second plate 422 of the connecting plate 42, the sleeve 73 is coaxially arranged with the threaded rod 72, and the threaded rod 72 is inserted into the sleeve 73 and is in threaded connection with the sleeve 73. The connecting rod 54 comprises a rod body 541 and a rod sleeve 542, one end of the rod body 541 is fixedly connected with the end face of the gear ring 51, the other end of the rod body 541 extends vertically downwards, one end of the rod sleeve 542 is fixedly mounted on the second plate 422 of the connecting plate 42, the lower end of the rod body 541 extends vertically downwards and is inserted into the rod sleeve 542, and the rod body 541 is in sliding fit with the rod sleeve 542. The threaded rod 72 and the sleeve 73 are driven to extend by the rotation of the on-off motor 71, so that the piston 41 can vertically move and be separated from the plug connection with the horn antenna 3.
Referring to fig. 5, 6 and 7, a turning device 8 is installed between the connection plate 42 and the gear ring 51, so that the piston 41 can be turned to one side of the feedhorn 3 conveniently, and the measuring work of the feedhorn 3 is not affected. The turnover device 8 comprises a first fixing frame 81, a second fixing frame 82 and a rotating shaft 83, wherein the first fixing frame 81 is fixedly arranged on a first plate body 421, the second fixing frame 82 is fixedly arranged on a second plate body 422, the rotating shaft 83 is fixedly arranged on one side, far away from the second fixing frame 82, of the first fixing frame 81, the other end of the rotating shaft 83 horizontally extends to penetrate through the first fixing frame 81 and is rotationally connected with the second fixing frame 82, a connecting spring 84 is sleeved on the rotating shaft 83, two ends of the connecting spring 84 are respectively fixed with the first fixing frame 81 and the second fixing frame 82, the connecting spring 84 enables the first fixing frame 81 and the second fixing frame 82 to be oppositely arranged, and the first plate body 421 and the second plate body 422 are located on the same horizontal plane. The gear ring 51 is connected with a spring wire 85, one end of the spring wire 85 is fixedly connected with the mounting plate 55, and the other end of the spring wire 85 is fixed around the side close to the piston 41 from the side of the rotating shaft 83 away from the piston 41. The spring wire 85 is inclined, and the distance between the end of the spring wire 85 connected with the gear ring 51 and the center line of the horn antenna 3 is smaller than the distance between the end of the spring wire 85 connected with the rotating shaft 83 and the center line of the horn antenna 3. After the threaded rod 72 and the sleeve 73 are extended for a certain distance, the upper end of the inner scraping strip 44 and the bottom of the horn antenna 3 are arranged at intervals, the spring wire 85 is straightened, the threaded rod 72 and the sleeve 73 are required to be kept away from each other, the straight spring wire 85 pulls the rotating shaft 83 to rotate, the connecting rod 54 and the threaded rod 72 are connected with the gear ring 51, the second plate 422 is kept in a parallel state with the flange plate 2, the first plate 421 rotates relative to the second plate 422, the end part, connected with the rotating shaft 83, of the spring wire 85 rotates to the side far away from the piston 41 by 180 degrees, the first plate 421 rotates 180 degrees relative to the second plate 422, the piston 41 is turned to the side far away from the horn antenna 3, and the horn antenna 3 can be arranged with the piston 41 and the cleaning device 4 at intervals, so that detection is convenient.
Referring to fig. 2 and 3, the piston 41 has a hollow structure, and a plurality of first through holes 411 are formed in the top of the piston 41. A plurality of second through holes 412 are formed in the bottom of the piston 41. The first through holes 411 and the second through holes 412 are each uniformly arranged along the circumferential direction of the piston 41, and the plurality of first through holes 411 and the plurality of second through holes 412 are in one-to-one correspondence. The bottom of the piston 41 is hinged with a plurality of bottom plates 413, and torsion springs are fixed on the hinge shafts of the bottom plates 413, so that the bottom plates 413 are abutted against the bottom of the piston 41 and cover the second through holes 412. When the piston 41 is inserted into the horn antenna 3, dust in the horn antenna 3 can be received while the dust is removed by rotation. And can cause dust to fall out to the corresponding cleaning location by pulling the bottom plate 413 open. Inside the piston 41 and at the center, an exhaust fan 46 is installed, and the front surface of the exhaust fan 46 faces the top of the piston 41. When the level meter is not used, if the inside clearance of horn antenna 3 is needed, through opening air discharge fan 46, can suck away the dust in the horn antenna 3 to, after the inside dust of clearance piston 41, inhale through air discharge fan 46, can provide little negative pressure in the cavity that horn antenna 3 and piston 41 enclose, make piston 41 airtight, conveniently when the level meter is not used, preserve the level meter, reduce the dust and get into the horn antenna 3 inside.
The working principle of the embodiment of the application is as follows: through threaded rod 72 and sleeve 73 peg graft in an organic wholely for connecting rod 54 is shortest, and piston 41 peg graft in horn antenna 3 is inside, and drive brake cylinder 45 makes outer scraping strip 43 laminate in the surface of horn antenna 3, and interior scraping strip 44 laminate in the internal surface of horn antenna 3, through drive gear 52 ring 51 rotation, can make piston 41 rotate whole week or forward half cycle plus reverse half cycle, carries out the deashing to horn antenna 3 wholly. When the gear ring 51 rotates, the floating dust on the surface of the horn antenna 3 can be cleaned by the elastic vibration of the elastic sheet 62.
When the level gauge needs to be used, the threaded rod 72 and the sleeve 73 are driven to be away from each other, the brake cylinder 45 is driven to be contracted, the outer scraping strip 43 is driven to be away from the surface of the horn antenna 3, and the sleeve 73 moves downwards to drive the piston 41 to be separated from the plugging fit with the horn antenna 3. When the upper end of the inner scraping strip 44 is arranged at an interval with the bottom of the horn antenna 3, the spring wire 85 is straightened, the sleeve 73 is continuously moved downwards, the spring wire 85 pulls the rotating shaft 83 to rotate 180 degrees, the first plate 421 drives the piston 41 to overturn towards one side far away from the horn antenna 3, and the level meter can be placed in the tank body for measurement.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims and the equivalents thereof, the present application is intended to cover such modifications and variations.
The foregoing is merely a preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art, within the scope of the present application, should apply to the present application, and all equivalents and modifications as fall within the scope of the present application.
Claims (8)
1. The utility model provides a radar level gauge convenient to operation, includes level gauge body (1), sets up in ring flange (2) of body one end, sets up in horn antenna (3) of ring flange (2) one end, a serial communication port, be provided with cleaning device (4) on horn antenna (3), cleaning device (4) including peg graft in horn antenna (3) tip and with horn antenna (3) normal running fit's piston (41), set up connecting plate (42) in piston (41) one side, set up on connecting plate (42) and with horn antenna (3) surface sliding fit's outer scraping strip (43), set up in piston (41) upper end and with horn antenna (3) internal surface sliding fit's interior scraping strip (44);
the driving device (5) is arranged on the flange plate (2), the driving device (5) comprises a gear ring (51) and a driving gear (52) which are rotatably arranged at the bottom of the flange plate (2), and a driving motor (53) arranged at the upper end of the flange plate (2), the gear ring (51) is sleeved outside the horn antenna (3) and is coaxially arranged with the horn antenna (3), the gear ring (51) is meshed with the driving gear (52), an output shaft of the driving motor (53) is fixed with the center of the driving gear (52), and the connecting plate (42) is fixedly connected with the gear ring (51) through a connecting rod (54);
be provided with headstock gear (7) and turning device (8) between connecting plate (42) and gear ring (51), headstock gear (7) are used for driving piston (41) vertical movement, turning device (8) are used for driving piston (41) upset to horn antenna (3) one side, headstock gear (7) include with fixed headstock motor (71) of gear ring (51), set up threaded rod (72) on headstock motor (71) output shaft, set up sleeve (73) on connecting plate (42), threaded rod (72) peg graft in sleeve (73) and with sleeve (73) threaded connection, connecting rod (54) include body of rod (541) be connected with gear ring (51), set up pole cover (542) on connecting plate (42), outer scraper (43) and interior scraper (44) are the rubber strip.
2. The radar level gauge according to claim 1, wherein the gear ring (51) is provided with a dust removing device (6), the dust removing device (6) comprises a fixing column (61) arranged on the end face of the gear ring (51), and an elastic sheet (62) arranged on one side of the fixing column (61), the peripheral side wall of the horn antenna (3) is provided with a bump (63), the bump (63) is uniformly provided with a plurality of bumps along the circumferential direction of the horn antenna (3), and the end part of the elastic sheet (62) is provided with a V-shaped elastic sheet (64) abutted against the surface of the bump (63).
3. The radar level gauge according to claim 1, wherein said piston (41) has a hollow structure, and a plurality of first through holes (411) are provided at a top of said piston (41).
4. A radar level gauge according to claim 3, wherein a plurality of second through holes (412) are provided in the bottom of said piston (41), a plurality of bottom plates (413) are hinged to the bottom of said piston (41), and torsion springs are provided on the hinge shafts of said bottom plates (413) so as to be abutted against the bottom of said piston (41) and cover said second through holes (412).
5. A radar level gauge according to claim 3, wherein said piston (41) is internally and centrally provided with an exhaust fan (46), the front face of said exhaust fan (46) being directed towards the top of the piston (41).
6. The radar level gauge according to claim 4, wherein said first through holes (411) and said second through holes (412) are each uniformly arranged along a circumferential direction of said piston (41), and said plurality of first through holes (411) and said plurality of second through holes (412) are in one-to-one correspondence.
7. A radar level gauge according to claim 1, wherein said connecting plate (42) is hinged with a brake cylinder (45) inclined from bottom to top towards the piston (41), one end of said outer wiper strip (43) is hinged with the connecting plate (42), and the rod end of the piston (41) of said brake cylinder (45) is hinged with the side wall of the outer wiper strip (43).
8. The radar level gauge according to claim 1, wherein said connection plate (42) comprises a first plate (421) fixed to one side of the piston (41), a second plate (422) movably disposed on one side of the first plate (421), said rod sleeve (542) and said sleeve (73) are both connected to the second plate (422), said turning device (8) comprises a first fixing frame (81) disposed on the first plate (421), a second fixing frame (82) disposed on the second plate (422), a rotating shaft (83) disposed on one side of the first fixing frame (81) away from the second fixing frame (82), the other end of said rotating shaft (83) passes through the first fixing frame (81) and is rotatably connected to the second fixing frame (82), said rotating shaft (83) is provided with a connection spring (84), both ends of said connection spring (84) are respectively fixed to the first fixing frame (81) and the second fixing frame (82), said gear ring (51) is connected with a spring wire (85), said other end of said spring wire (85) is disposed on one side of said rotating shaft (83) away from the piston (41) near to the antenna (43), the spring wire (85) is in a straightened state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310505188.4A CN116818044B (en) | 2023-05-08 | 2023-05-08 | Radar level gauge convenient to operation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310505188.4A CN116818044B (en) | 2023-05-08 | 2023-05-08 | Radar level gauge convenient to operation |
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| Publication Number | Publication Date |
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| CN116818044A CN116818044A (en) | 2023-09-29 |
| CN116818044B true CN116818044B (en) | 2023-12-19 |
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