CN113624298A

CN113624298A - Intelligent radar liquid level meter

Info

Publication number: CN113624298A
Application number: CN202111035226.1A
Authority: CN
Inventors: 许华杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-05
Filing date: 2021-09-05
Publication date: 2021-11-09

Abstract

The invention discloses an intelligent radar liquid level meter, which structurally comprises a main body, a fixing device, a wave guide rod and a mounting flange, wherein the bottom of the main body is fixed at the top of the wave guide rod; the invention has the following effects: utilize the block of fixture block and mounting flange and when making the absorption mouth produce the negative pressure through bleeding to obtain suction and adsorb and guarantee the fixed effect of installation on mounting flange, can also reach the purpose of quick dismantlement through controlling micromotor, the produced air current of downflow fan can blow off the foam of measuring point liquid level after the jet orifice blowout simultaneously, once guarantees measurement accuracy, has solved the problem that the whole dismantlement of current radar level gauge is inconvenient and liquid surface foam influences measurement accuracy when measuring.

Description

Intelligent radar liquid level meter

Technical Field

The invention relates to the field of measuring instruments, in particular to an intelligent radar liquid level meter.

Background

The radar level gauge belongs to a general radar level gauge, and is a measuring instrument based on a time travel principle, wherein radar waves run at the speed of light, and the running time can be converted into a level signal through electronic components. The radar level gauge is an instrument which transmits high-frequency pulse in space at the speed of light by a probe, the pulse is reflected back to be received by a receiver in the instrument when encountering the surface of a material and is converted into a level signal, most of the existing radar level gauges adopt flange plates for fixing, a plurality of screws are required for locking the radar level gauges when the radar level gauges are fixed, and when the radar level gauges meet the condition that maintenance or part replacement is required, if the radar level gauges are integrally disassembled, the operation is complex, the disassembly is inconvenient, the efficiency of maintenance or part replacement can be reduced, and when some liquid is measured, foam can float on the surface due to the nature of the radar level gauges, the measurement precision of the radar level gauges can be influenced due to the foam, so an intelligent radar level gauge is required to be developed, has the characteristic of convenient and rapid installation and disassembly when the parts are maintained or replaced, the maintenance efficiency can be effectively improved, and the foam of a measurement point can be eliminated, the problem of when current radar level gauge meets the condition that needs overhaul or change the part, carry out whole dismantlement inconvenient and liquid surface foam influences measurement accuracy when measuring is solved.

Disclosure of Invention

The invention provides an intelligent radar liquid level meter, which aims at solving the problems that most of the existing radar liquid level meters adopt a flange plate for fixing, a plurality of screws are required to be used for locking the radar liquid level meters when the radar liquid level meters are fixed, when the radar liquid level meters meet the condition that parts need to be overhauled or replaced, if the radar liquid level meters are integrally disassembled, the operation is complex, the disassembly is inconvenient, the efficiency of overhauling or replacing the parts can be reduced, and when some liquid is measured, foam can float on the surface due to the nature of the radar liquid level meters, and the measurement precision of the radar liquid level meters can be influenced due to the existence of the foam.

The invention is realized by the following technical scheme: the utility model provides an intelligence radar level gauge, its structure includes main part, fixing device, guided wave pole, mounting flange, the top at the guided wave pole is fixed to the main part bottom, the guided wave pole outside installs fixing device on the surface, fixing device is located the main part below, fixing device cooperatees with mounting flange, mounting flange is located fixing device below and is connected with the guided wave pole.

As a further optimization of the technical scheme, the wave guide rod comprises a rod body, a micro motor, a main shaft, a first connecting ring, an upstream fan, a downstream fan, a second connecting ring, an adsorption mechanism and an air jet, wherein the micro motor is installed at the top end inside the rod body, an output shaft of the micro motor is connected with the top end of the main shaft, the first connecting ring and the second connecting ring are movably connected on the surface of the outer side of the main shaft, the first connecting ring is connected with a fixing device and communicated with the fixing device, the second connecting ring is connected with the adsorption mechanism and communicated with the adsorption mechanism, the upstream fan and the downstream fan are installed on the surface of the outer side of the main shaft, the upstream fan is positioned above the downstream fan, the upstream fan and the downstream fan are positioned between the first connecting ring and the second connecting ring, the main shaft is connected with the adsorption mechanism, the air jet is arranged at the bottom of the rod body, the bottom of the main body is fixed at the top of the rod body, the mounting flange is located below the fixing device and connected with the rod body.

As a further optimization of the technical scheme, the fixing device comprises a triggering mechanism and a fixing mechanism, one end of the triggering mechanism is connected with the fixing mechanism, the other end of the triggering mechanism is connected with the outer side surface of the rod body, the triggering mechanism is connected with the first connecting ring and communicated with the first connecting ring, and the fixing mechanism is matched with the mounting flange.

As a further optimization of this technical scheme, trigger mechanism includes shell, piston rod, rack, disappointing mouth, extension spring, connecting pipe, the shell cooperatees with the piston rod, piston rod one end links to each other with the rack, the piston rod other end meets with the extension spring, the extension spring is fixed at the inside lateral wall of shell, be equipped with disappointing mouth on the shell, the connecting pipe is fixed on the shell, the connecting pipe is connected with a go-between and both communicate with each other, the shell is connected with fixed establishment, the rack cooperatees with fixed establishment.

As a further optimization of this technical scheme, fixed establishment includes gear, rotary rod, ring, connecting rod, fixture block, spring, casing, spacing hole, the both ends of casing all are equipped with spacing hole, spacing hole all cooperates the fixture block, it has the spring to run through on the fixture block, spring one end links to each other with the fixture block, and the other end meets with the inner wall of casing, the fixture block is fixed with the connecting rod towards the one end of rotary rod, every the connecting rod all cooperates there is a ring, the ring is equipped with two and fixes on the rotary rod, two the ring uses the rotary rod to be central symmetry setting as the centre of a circle, the bottom of rotary rod and the interior bottom surface central point of casing put swing joint, the gear is installed at the top of rotary rod, gear and rack mesh, fixture block and mounting flange block mutually, the casing is connected with the shell.

As a further optimization of the technical scheme, the rod body comprises a filter screen and an air inlet, the air inlet is formed in the rod body, and the filter screen is installed on the air inlet.

As a further optimization of the technical scheme, the spindle includes a fan air inlet, an air exhaust fan and a spindle air outlet, the spindle is provided with the spindle air outlet at a connection position of the spindle and the first connecting ring, the spindle is provided with the fan air inlet at an upstream fan installation position, the air exhaust fan is installed on the surface of the inner side of the spindle, and the air exhaust fan is located between the spindle air outlet and the fan air inlet.

As a further optimization of the technical scheme, the adsorption mechanism comprises a vent pipe, an adsorption port and a base body, the base body is provided with the vent pipe, the vent pipe is connected with the adsorption port, the vent pipe is connected and communicated with a second connecting ring, and the main shaft is connected with the base body.

The connecting rod is provided with a movable opening, the circular ring and the connecting rod form a chain structure through the movable opening, and one surface of the movable opening, facing the circular ring, is an arc surface.

Advantageous effects

The invention discloses an intelligent radar liquid level meter, which has the following beneficial effects:

the radar liquid level gauge is additionally provided with a fixing device, an upstream fan, a downstream fan and other components, the clamping between the clamping block and the mounting flange is utilized, the adsorption port generates negative pressure through air exhaust to obtain suction force, the suction force is adsorbed on the mounting flange to ensure the mounting and fixing effect, meanwhile, the micro-motor can be controlled to achieve the purpose of quick dismounting, and meanwhile, the air flow generated by the downstream fan can blow away foam on the liquid level of a measuring point after being sprayed out through the air spraying port to ensure the measuring precision once, so that the problems that the existing radar liquid level gauge is inconvenient to dismount as a whole and the liquid surface foam influences the measuring precision during measurement when the existing radar liquid level gauge needs to be overhauled or parts are replaced are solved.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural diagram of an intelligent radar level gauge of the present invention.

Fig. 2 is a schematic structural diagram of the fixing device, the wave guide rod and the mounting flange of the present invention.

Fig. 3 is a schematic structural view of a cross section of the waveguide rod of the present invention.

FIG. 4 is an enlarged schematic view of the structure at A in FIG. 1

Fig. 5 is an enlarged schematic view of the structure at B in fig. 3.

Fig. 6 is a schematic structural view of the interior of the fixing mechanism of the present invention in front view.

Fig. 7 is a dynamic structural diagram of the fixing mechanism of the present invention.

Fig. 8 is a schematic bottom sectional view of the fixing mechanism of the present invention.

In the figure: the device comprises a main body-1, a fixing device-2, a wave guide rod-3, a mounting flange-4, a rod body-31, a micromotor-32, a main shaft-33, a first connecting ring-34, an upstream fan-35, a downstream fan-36, a second connecting ring-37, an adsorption mechanism-38, an air nozzle-39, a trigger mechanism-2 a, a fixing mechanism-2 b, a shell-2 a1, a piston rod-2 a2, a rack-2 a3, an air leakage port-2 a4, a tension spring-2 a5, a connecting pipe-2 a6, a gear-2 b1, a rotating rod-2 b2, a circular ring-2 b3, a connecting rod-2 b4, a clamping block-2 b5, a spring-2 b6, a shell-2 b7, a filter screen-311, an air inlet-312, a fan air inlet-331, An air suction fan-332, a main shaft air outlet-333, an air pipe-381, an adsorption port-382, a substrate-383 and a movable port x.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the following description and the accompanying drawings further illustrate the preferred embodiments of the invention.

Example one

Referring to fig. 1-4, the present invention provides an intelligent radar level gauge, which comprises a main body 1, a fixing device 2, a wave guide rod 3, and a mounting flange 4, wherein the bottom of the main body 1 is fixed on the top of the wave guide rod 3, the fixing device 2 is installed on the outer surface of the wave guide rod 3, the fixing device 2 is located below the main body 1, the fixing device 2 is matched with the mounting flange 4, the mounting flange 4 is located below the fixing device 2 and is connected with the wave guide rod 3, the wave guide rod 3 comprises a rod body 31, a micro-motor 32, a main shaft 33, a first connecting ring 34, an upstream fan 35, a downstream fan 36, a second connecting ring 37, an adsorption mechanism 38, and an air jet 39, the micro-motor 32 is installed on the top end of the inner part of the rod body 31, the output shaft of the micro-motor 32 is connected with the top end of the main shaft 33, the first connecting ring 34 and the second connecting ring 37 are movably connected on the outer surface of the main shaft 33, the first connecting ring 34 is connected with the fixing device 2 and communicated with the two, the second connecting ring 37 is connected with the adsorption mechanism 38 and communicated with the adsorption mechanism 38, the upper flow fan 35 and the lower flow fan 36 are installed on the outer surface of the main shaft 33, the upper flow fan 35 is located above the lower flow fan 36, the upper flow fan 35 and the lower flow fan 36 can suck external air and then respectively flow to the upper direction and the lower direction, the upper flow fan 35 and the lower flow fan 36 are located between the first connecting ring 34 and the second connecting ring 37, the first connecting ring 34 and the second connecting ring 37 are both provided with sealing rings at the connecting position to ensure the sealing performance and prevent air leakage at the connecting position, the main shaft 33 is connected with the adsorption mechanism 38, the bottom of the rod body 31 is provided with an air jet 39, the bottom of the main body 1 is fixed on the top of the rod body 31, the fixing device 2 is installed on the outer surface of the rod body 31, the mounting flange 4 is located below the fixing device 2 and connected with the rod body 31, and the lower flow fan 36 blows part of the air downwards, the gas is sprayed out through the gas nozzle 39 at the tail end, so that the foam on the measured liquid surface can be blown away, and the influence of the foam on the measurement precision of the radar liquid level meter is avoided.

Referring to fig. 2, the fixing device 2 includes a triggering mechanism 2a and a fixing mechanism 2b, one end of the triggering mechanism 2a is connected to the fixing mechanism 2b, the other end is connected to the outer surface of the rod 31, the triggering mechanism 2a is connected to and communicated with a first connecting ring 34, and the fixing mechanism 2b is matched with the mounting flange 4.

Referring to fig. 3, the triggering mechanism 2a includes a housing 2a1, a piston rod 2a2, a rack 2a3, a release opening 2a4, a tension spring 2a5, and a connecting tube 2a6, the housing 2a1 is engaged with the piston rod 2a2, one end of the piston rod 2a2 is connected to the rack 2a3, the other end of the piston rod 2a2 is connected to the tension spring 2a5, the tension spring is fixed to an inner side wall of the housing 2a1, the housing 2a1 is provided with a release opening 2a4, the release opening 2a4 is provided at a maximum limit position of the end of the piston rod 2a2, when the piston rod 2a2 is at the maximum position, the excess gas that enters can be discharged from the release opening 2a4, the connecting tube 2a6 is fixed to the housing 2a1, the housing 2a6 is connected to a connecting ring 34 and both connecting rings, the housing 2a1 is connected to the fixing mechanism 2b, and the rack 2a3 is engaged with the fixing mechanism 2 b.

Referring to fig. 6-8, the fixing mechanism 2b includes a gear 2b1, a rotating rod 2b2, a circular ring 2b3, a connecting rod 2b4, a fixture block 2b4, a spring 2b4, a housing 2b4, and a limiting hole 2b4, both ends of the housing 2b4 are provided with the limiting hole 2b4, the limiting hole 2b4 is matched with the fixture block 2b4, the fixture block 2b4 is penetrated by the spring 2b4, one end of the spring 2b4 is connected with the fixture block 2b4, the other end is connected with the inner wall of the housing 2b4, one end of the fixture block 2b4 facing the rotating rod 2b4 is fixed with the connecting rod 2b4, each connecting rod 2b4 is matched with one circular ring 2b4, two circular rings 2b4 are fixed on the rotating rod 2b4, the two circular rings 2b4 are symmetrically arranged with the center of the rotating rod 4, the bottom of the rotating rod 4 is connected with the center of the rotating rod 4, the movable top of the gear 4, and the rack 4 is engaged with the top of the gear 4, the fixture block 2b5 is fastened with the mounting flange 4, the housing 2b7 is connected with the housing 2a1, the link 2b4 is provided with a movable opening x, the ring 2b3 and the link 2b4 form a link structure through the movable opening x, one surface of the movable opening x facing the ring 2b3 is an arc surface, the ring 2b3 can apply force to the link 2b4 through the arc surface, when the ring 2b3 rotates clockwise, thrust is generated to the link 2b4 through the arc surface, and conversely, when the ring 2b3 rotates counterclockwise, tension is generated to the link 2b4 through the arc surface.

Referring to fig. 3, the rod 31 includes a filter screen 311 and an air inlet 312, the air inlet 312 is disposed on the rod 31, the filter screen 311 is mounted on the air inlet 312, and the filter screen 311 can filter the air sucked from the outside, so as to prevent dust from entering, and to pollute the internal structure or block the internal pipeline.

Referring to fig. 5, the spindle 33 includes a fan inlet 331, a suction fan 332, and a spindle outlet 333, the spindle 33 is provided with the spindle outlet 333 at a connection position with the first connection ring 34, the spindle 33 is provided with the fan inlet 331 at a mounting position of the upstream fan 35, the suction fan 332 is mounted on the inner surface of the spindle 33, and the suction fan 332 is located between the spindle outlet 333 and the fan inlet 331.

The specific realization principle is as follows:

when the fixing is needed, the micro motor 32 is driven to drive the spindle 33 to start rotating, because the first connecting ring 34 and the second connecting ring 37 are movably connected with the spindle 33, at this time, the first connecting ring 34 and the second connecting ring 37 are not influenced by the rotation of the spindle 33 and are still, the upper flow fan 35 and the lower flow fan 36 connected with the spindle 33 rotate along with the spindle 33 so as to suck external air into the rod body 31 from the air inlet 312, and simultaneously generate a guiding effect on the air flow, the upper flow fan 35 enables part of the air to flow upwards through the fan air inlet 331, then the air is guided by the air suction fan 332 inside the spindle 33, enters the first connecting ring 34 from the spindle air outlet 333 and then enters the connecting pipe 2a6, and then is introduced into the shell 2a1, the piston rod 2a2 in sliding fit with the shell 2a1 is pushed out by the thrust of the air, when the piston rod 2a2 is displaced to the maximum position, the excessive air can be discharged from the air outlet 2a4, and the discharged air curtain can also play a blocking effect on external dust, after the piston rod 2a2 is pushed out, the rack 2a3 connected with the piston rod moves forwards to drive the gear 2b1 meshed with the rack 2a3 to rotate, the gear 2b1 rotates to enable the rotating rod 2b2 to drive the circular ring 2b3 to rotate, the rotating position of the circular ring 2b3 changes to push the connecting rod 2b4 matched with the circular ring to move outwards, the clamping block 2b5 connected with one end of the connecting rod 2b4 also moves outwards, at the moment, the clamping block 2b5 is clamped with the mounting flange 4 to play a fixing role, meanwhile, the downstream fan 36 blows part of air downwards, the air is sprayed out through the air spraying port 39 at the tail end, the air on the measured liquid level can be blown away, so that the measuring precision of the radar liquid level gauge is prevented from being influenced by the existence of the foam, when the micro-motor 32 is required to be disassembled, the main shaft 33 is closed, the rotation of the upstream fan 35 and the downstream fan 36 is stopped, wind power is not generated, the piston rod 2a2 loses the pushing force of the tension spring 2a5, and the clamping block 2b5 is also retracted inwards by the spring force of the spring 2b6, after the clamping is lost, the main body 1 and the waveguide rod 3 can be pulled out from the mounting flange 4 for maintenance or replacement.

Example two

Referring to fig. 1-4, the present invention provides an intelligent radar level gauge, which comprises a main body 1, a fixing device 2, a wave guide rod 3, and a mounting flange 4, wherein the bottom of the main body 1 is fixed on the top of the wave guide rod 3, the fixing device 2 is installed on the outer surface of the wave guide rod 3, the fixing device 2 is located below the main body 1, the fixing device 2 is matched with the mounting flange 4, the mounting flange 4 is located below the fixing device 2 and is connected with the wave guide rod 3, the wave guide rod 3 comprises a rod body 31, a micro-motor 32, a main shaft 33, a first connecting ring 34, an upstream fan 35, a downstream fan 36, a second connecting ring 37, an adsorption mechanism 38, and an air jet 39, the micro-motor 32 is installed on the top end of the inner part of the rod body 31, the output shaft of the micro-motor 32 is connected with the top end of the main shaft 33, the first connecting ring 34 and the second connecting ring 37 are movably connected on the outer surface of the main shaft 33, the first connecting ring 34 is connected with the fixing device 2 and communicated with the two, the second connecting ring 37 is connected with the adsorption mechanism 38 and communicated with the adsorption mechanism 38, the upstream fan 35 and the downstream fan 36 are mounted on the outer side surface of the main shaft 33, the upstream fan 35 is located above the downstream fan 36, the upstream fan 35 and the downstream fan 36 are located between the first connecting ring 34 and the second connecting ring 37, the main shaft 33 is connected with the adsorption mechanism 38, the bottom of the rod body 31 is provided with an air jet 39, the bottom of the main body 1 is fixed to the top of the rod body 31, the fixing device 2 is mounted on the outer side surface of the rod body 31, and the mounting flange 4 is located below the fixing device 2 and connected with the rod body 31.

The upstream fan 35 and the downstream fan 36 can suck the external air and then divide the air into two different directions; the first connecting ring 34 and the second connecting ring 37 are provided with sealing rings at the joints to ensure the sealing performance and prevent air leakage at the joints.

Referring to fig. 3, the rod 31 includes a filter screen 311 and an air inlet 312, the air inlet 312 is disposed on the rod 31, and the filter screen 311 is mounted on the air inlet 312.

The filter screen 311 may filter the air sucked from the outside, so as to prevent dust from entering, contaminating the internal structure, or blocking the internal pipeline.

Referring to fig. 3, the suction mechanism 38 includes a vent pipe 381, a suction port 382, and a base 383, the base 383 is provided with a vent pipe 381, the vent pipe 381 is connected to the suction port 382, the vent pipe 381 is connected to and communicated with the second connecting ring 37, and the main shaft 33 is connected to the base 383.

The specific realization principle is as follows:

when the micro-motor 32 is started, the main shaft 33 rotates, the air suction fan 332 installed on the inner side surface of the main shaft 33 rotates to suck air into the inner cavity of the main shaft 33, meanwhile, the air exhaust pipe 381 connected and communicated with the second connecting ring 37 movably connected with the main shaft 33 is sucked, negative pressure generated by the air suction enables the adsorption port 382 to form suction force, the adsorption port 382 is adsorbed on the installation flange 4 by the suction force, the installation and fixation effects of the fixing device 2 are improved, when the micro-motor 32 stops, the main shaft 33 stops rotating, the air suction fan 332 also stops moving, the suction force disappears after the air suction stops, and the fixation effect is not generated any more.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

While there have been shown and described what are at present considered the fundamental principles of the invention, the essential features and advantages thereof, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but rather, is capable of numerous changes and modifications in various forms without departing from the spirit or essential characteristics thereof, and it is intended that the invention be limited not by the foregoing descriptions, but rather by the appended claims and their equivalents.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An intelligent radar level gauge, its characterized in that: the structure of the installation flange comprises a main body (1), a fixing device (2), a guided wave rod (3) and an installation flange (4), wherein the main body (1) is fixed at the top of the guided wave rod (3), the fixing device (2) is installed on the guided wave rod (3), the fixing device (2) is positioned below the main body (1) and matched with the installation flange (4), and the installation flange (4) is positioned below the fixing device (2) and connected with the guided wave rod (3);

the wave guide rod (3) comprises a rod body (31), a micro motor (32), a main shaft (33), a first connecting ring (34), an upstream fan (35), a downstream fan (36), a second connecting ring (37), an adsorption mechanism (38) and an air jet (39), the micro motor (32) is installed at the inner top end of the rod body (31), an output shaft of the micro motor (32) is connected with the top end of the main shaft (33), the main shaft (33) is movably connected with the first connecting ring (34) and the second connecting ring (37), the first connecting ring (34) is communicated with the fixing device (2), the second connecting ring (37) is communicated with the adsorption mechanism (38), the upstream fan (35) and the downstream fan (36) are installed on the outer side surface of the main shaft (33), the upstream fan (35) is located above the downstream fan (36) and the upstream fan (35) and the downstream fan (36) are located between the first connecting ring (34) and the second connecting ring (37), the main shaft (33) is connected with the adsorption mechanism (38), and the bottom of the rod body (31) is provided with an air jet (39).

2. The intelligent radar level gauge according to claim 1, wherein: the fixing device (2) comprises a trigger mechanism (2a) and a fixing mechanism (2b), one end of the trigger mechanism (2a) is connected with the fixing mechanism (2b), the other end of the trigger mechanism is connected with the outer side surface of the rod body (31), and the trigger mechanism (2a) is communicated with a first connecting ring (34).

3. The intelligent radar level gauge according to claim 2, wherein: trigger mechanism (2a) includes shell (2a1), piston rod (2a2), rack (2a3), disappointing mouth (2a4), extension spring (2a5), connecting pipe (2a6), shell (2a1) cooperatees with piston rod (2a2), piston rod (2a2) one end links to each other with rack (2a3), and the other end meets with extension spring (2a5), extension spring (2a5) is fixed at shell (2a1) inside wall, be equipped with disappointing mouth (2a4) on shell (2a1), connecting pipe (2a6) are fixed on shell (2a1) and are linked together with a go-between (34), shell (2a1) are connected with fixed establishment (2 b).

4. The intelligent radar level gauge according to claim 2 or 3, wherein: the fixing mechanism (2b) comprises a gear (2b1), a rotating rod (2b2), a circular ring (2b3), a connecting rod (2b4), a clamping block (2b5), a spring (2b6), a shell (2b7) and a limiting hole (2b8), wherein two ends of the shell (2b7) are respectively provided with a limiting hole (2b8), the limiting hole (2b8) is matched with the clamping block (2b5), the clamping block (2b5) is provided with a spring (2b6) in a penetrating manner, one end of the spring (2b6) is connected with the clamping block (2b5), the other end of the spring is connected with the inner wall of the shell (2b7), one end, facing the rotating rod (2b2), of the clamping block (2b5) is fixed with a connecting rod (2b 6867), each connecting rod (2b4) is matched with a circular ring (2b3), the circular ring (3) is provided with two circular rings 3) and is symmetrically arranged on the rotating rod (2b3), the bottom of the rotating rod (2b2) is movably connected with the center of the inner bottom surface of the shell (2b7), and the top of the rotating rod (2b2) is provided with a gear (2b1) meshed with the rack (2a 3).

5. The intelligent radar level gauge according to claim 1 or 2, wherein: the rod body (31) is provided with an air inlet (312), and a filter screen (311) is installed on the air inlet (312).

6. The intelligent radar level gauge according to claim 1, wherein: main shaft (33) include fan air intake (331), extract air fan (332), main shaft air outlet (333), main shaft (33) and the junction of a go-between (34) are equipped with main shaft air outlet (333), main shaft (33) are equipped with fan air intake (331) in the installation department of upstream fan (35), install extract air fan (332) on main shaft (33) inboard surface, extract air fan (332) are located between main shaft air outlet (333) and fan air intake (331).

7. The intelligent radar level gauge according to claim 1, wherein: the adsorption mechanism (38) comprises an air pipe (381), an adsorption port (382) and a base body (383), wherein the base body (383) is provided with an air pipe (381) connected with the adsorption port (382), the air pipe (381) is connected and communicated with a second connecting ring (37), and the main shaft (33) is connected with the base body (383).

8. The intelligent radar level gauge according to claim 4, wherein: connecting rod (2b4) are equipped with activity mouth (x), link structure is formed through activity mouth (x) and connecting rod (2b4) in ring (2b3), the one side of orientation ring (2b3) of activity mouth (x) is the cambered surface.