CN209131782U - A kind of radar levelmeter - Google Patents
A kind of radar levelmeter Download PDFInfo
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- CN209131782U CN209131782U CN201821922705.9U CN201821922705U CN209131782U CN 209131782 U CN209131782 U CN 209131782U CN 201821922705 U CN201821922705 U CN 201821922705U CN 209131782 U CN209131782 U CN 209131782U
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- lens
- annular
- radar levelmeter
- intake passage
- electromagnetic horn
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Abstract
The utility model provides a kind of radar levelmeter, including electromagnetic horn and lens, guided wave access is formed in the electromagnetic horn, the lens are located at the outlet side of the guided wave access, the electromagnetic horn is equipped with air intake passage, and the air intake passage has entrance and exit, and the lens are equipped with air-guiding aisle, the air-guiding aisle includes annular wind guide tank and the exhaust vent that be connected to the annular wind guide tank, and the outlet of the air intake passage is connected to the annular wind guide tank.Annular wind guide tank is arranged on lens radar levelmeter provided by the utility model, avoids annular wind guide tank bring reflection of electromagnetic wave problem is arranged on electromagnetic horn, so that the measurement effect of radar levelmeter is good.
Description
Technical field
The utility model relates to level meter field, especially a kind of radar levelmeter.
Background technique
Existing radar levelmeter, lens are mounted on the lower end of electromagnetic horn.In order to clean to lens, it is removed
On dust, annular wind guide tank is usually opened up on the inner wall of electromagnetic horn, using the annular wind guide tank come out wind to saturating
The surrounding of mirror is cleaned.But annular wind guide tank is opened up on the inner wall of electromagnetic horn, lead to the inner wall of electromagnetic horn
Upper generation reflection of electromagnetic wave, influences the measurement of radar levelmeter.
Utility model content
In order to solve the above-mentioned technical problem, the utility model embodiment provides a kind of radar levelmeter, can reduce due to
Reflection of electromagnetic wave caused by annular wind guide tank is offered, on electromagnetic horn so as not to influence the normal use of radar levelmeter.
In order to reach the purpose of this utility model, the technical solution that the utility model is taken is as follows:
The utility model embodiment provides a kind of radar levelmeter, including electromagnetic horn and lens, the electromagnetic horn
It is inside formed with guided wave access, the lens are located at the outlet side of the guided wave access, and the electromagnetic horn is equipped with air intake passage,
The air intake passage has entrance and exit, and the lens are equipped with air-guiding aisle, and the air-guiding aisle includes annular wind guide tank
The exhaust vent being connected to with the annular wind guide tank, the outlet of the air intake passage are connected to the annular wind guide tank.
Radar levelmeter provided by the embodiment of the utility model, electromagnetic horn are equipped with air intake passage, and lens are equipped with
Annular wind guide tank and the exhaust vent being connected to the annular wind guide tank, and the outlet of air intake passage is connected to annular wind guide tank, in this way
It when needing to clean lens, can be entered the wind from air intake passage, then wind can be led by the outlet of air intake passage into annular
In wind groove, wind flows in the annular wind guide tank, makes full of wind in entire annular wind guide tank, so that the wind come out from exhaust vent can
Lens are cleaned from surrounding, blow away the dust etc. on lens.
Due on lens rather than on electromagnetic horn, avoiding and in the prior art leading annular the setting of annular wind guide tank
Bring reflection of electromagnetic wave problem is arranged on electromagnetic horn in wind groove, so that radar levelmeter provided by the embodiment of the utility model
Measurement effect it is good.
Other features and advantages of the utility model will illustrate in the following description.
Detailed description of the invention
Attached drawing is used to provide to further understand technical solutions of the utility model, and constitutes part of specification,
It is used to explain the technical solution of the utility model together with embodiments herein, not constitute to technical solutions of the utility model
Limitation.
Fig. 1 is the schematic cross-sectional view of radar levelmeter described in the utility model embodiment；
Fig. 2 is the enlarged diagram of the portion A structure in Fig. 1；
Fig. 3 is the decomposition texture schematic diagram of radar levelmeter shown in FIG. 1；
Fig. 4 is the structural schematic diagram of lens in Fig. 3.
Wherein, the relationship in Fig. 1-Fig. 4 between appended drawing reference and component names are as follows:
1- electromagnetic horn, 11- guided wave access, 111- upper part, 112- low portion, 113- step surface, 12- air inlet are logical
Road, 121- entrance, the outlet 122-, 2- lens, 21- annular fixed part, 211- annular wind guide tank, 212- annular mounting groove, 3- gear
Circle, 4- sealing element.
Specific embodiment
The embodiments of the present invention are described in detail below in conjunction with attached drawing.
The utility model embodiment provides a kind of radar levelmeter, as shown in Figure 1 and Figure 2, including electromagnetic horn 1 and thoroughly
Mirror 2 is formed with guided wave access 11 in electromagnetic horn 1, and lens 2 are located at the outlet side (downside i.e. in figure) of guided wave access 11.Its
In, electromagnetic horn 1 is equipped with air intake passage 12, and air intake passage 12 has entrance 121 and outlet 122；Lens 2 are logical equipped with wind-guiding
Road, air-guiding aisle include annular wind guide tank 211 and the exhaust vent (not shown) that is connected to annular wind guide tank 211, air intake passage 12
Outlet 122 be connected to annular wind guide tank 211.
Radar levelmeter provided by the embodiment of the utility model, electromagnetic horn 1 is equipped with air intake passage 12, on lens 2
Equipped with annular wind guide tank 211 and the exhaust vent being connected to the annular wind guide tank 211, and the outlet 122 of air intake passage 12 and annular
Wind guide tank 211 is connected to, and in this way when needing to clean lens 2, can be entered the wind from air intake passage 12, then wind can pass through air inlet
The outlet 122 in channel 12 enters in annular wind guide tank 211, and wind flows in the annular wind guide tank 211, makes entire annular wind guide tank
It is full of wind in 211, so that the wind come out from exhaust vent can clean lens 2 from surrounding, blows away the dust etc. on lens 2.
Due to being arranged annular wind guide tank 211 on lens 2, rather than on electromagnetic horn 1, in the prior art will avoid
Bring reflection of electromagnetic wave problem is arranged on electromagnetic horn 1 in annular wind guide tank 211, so that provided by the embodiment of the utility model
The measurement effect of radar levelmeter is good.
Optionally, air intake passage 12 has one outlet 122.
Optionally, air intake passage 12 has multiple outlets 122, and multiple outlets 122 are uniformly distributed along the circumferential direction of electromagnetic horn 1.
Air intake passage 12 has multiple outlets 122, facilitates the flow resistance for reducing wind；It is multiple to export 122 along loudspeaker day
The circumferential direction of line 1 is uniformly distributed, facilitates wind evenly into annular wind guide tank 211, and then clean to lens 2 from surrounding.
Optionally, as shown in Figure 1, guided wave access 11 includes upper part 111 and low portion 112, low portion 112
Cross-sectional area is greater than the cross-sectional area of upper part 111, and step surface 113 is formed between low portion 112 and upper part 111,
The outlet 122 of air intake passage 12 is set in the side wall surface (i.e. the interior sidewall surface of electromagnetic horn 1) of low portion 112, and lens 2 are solid
Determine to low portion 112.
Due to low portion 112 cross-sectional area be greater than upper part 111 cross-sectional area (i.e. low portion 112 is straight
Diameter is greater than the diameter of upper part 111) so that electromagnetic wave is by diffusing to the side wall surface of low portion 112 when guided wave access 11
Electromagnetic wave reduce, caused so as to be further reduced 122 pairs of the outlet electromagnetic wave being arranged in the side wall surface of low portion 112
Reflection.
Optionally, as shown in Figure 1, upper part 111 can be in cone, low portion 112 can be cylindrical.
Optionally, as shown in Figure 1-Figure 3, annular wind guide tank 211 is arranged on the outer side surface of lens 2, air intake passage 12
Outlet 122 be set in the interior sidewall surface of electromagnetic horn 1.
After lens 2 are mounted on electromagnetic horn 1, the interior sidewall surface of the outer side surface and electromagnetic horn 1 of lens 2 is adjoining,
The outlet 122 of annular wind guide tank 211 and air intake passage 12 is respectively arranged in the outer side surface and electromagnetic horn 1 of lens 2
In side wall surface so that the outlet 122 of air intake passage 12 is neighbouring and towards annular wind guide tank 211, convenient for annular wind guide tank 211 and into
The outlet 122 in wind channel 12 is connected to.
Optionally, as Figure 1-Figure 4, the edge of lens 2 is equipped with annular fixed part 21, and the annular setting of wind guide tank 211 exists
On the outer side surface of annular fixed part 21, exhaust vent is arranged in the interior sidewall surface of annular fixed part 21.
Optionally, air-guiding aisle includes circumferentially uniformly distributed multiple exhaust vents along lens 2.
Multiple exhaust vents of air-guiding aisle are uniformly distributed along the circumferential direction of lens 2, so that can be from four from the wind that multiple exhaust vents flow out
Week uniformly blows to lens 2, and the dust on lens 2 is blown off.
Optionally, lens 2 and electromagnetic horn 1 pass through 3 axial restraint of retaining ring.
Optionally, as depicted in figs. 1 and 2, nonmetallic retaining ring 3 is installed, annular is solid in the interior sidewall surface of electromagnetic horn 1
Determine portion 21 to be supported on nonmetallic retaining ring 3.
The lower end of annular fixed part 21 is supported on nonmetallic retaining ring 3, the upper part 111 of upper end and guided wave access 11
The step surface 113 formed between low portion 112 offsets, so that annular fixed part 21 and 1 axial restraint of electromagnetic horn, in turn
Lens 2 are axially fixed to electromagnetic horn 1.Using nonmetallic retaining ring 3, the reflection caused by electromagnetic wave can be reduced, to reduce
Influence to the measurement effect of radar levelmeter.
Optionally, as shown in Figure 1, being equipped between the outer side surface of annular fixed part 21 and the interior sidewall surface of electromagnetic horn 1
Sealing element 4.
Sealing element 4 can guarantee the leakproofness between lens 2 and electromagnetic horn 1, and external dust, etchant gas etc. is avoided to enter
Inside radar levelmeter, the work of radar levelmeter is interfered, influences the service life of radar levelmeter.
Optionally, as shown in figs 2-4, the outer side surface of annular fixed part 21 is equipped with the annular peace of installation sealing element 4
Tankage 212.
The annular mounting groove 212 of installation sealing element 4 is arranged on the annular fixed part 21 of lens 2, rather than is arranged in loudspeaker
In the interior sidewall surface of antenna 1, avoid when annular mounting groove 212 is provided in the interior sidewall surface of electromagnetic horn 1 to electromagnetic wave
It causes to reflect.
Optionally, as Figure 1-Figure 4, between the outer side surface of annular fixed part 21 and the interior sidewall surface of electromagnetic horn 1
If setting that there are two annular mounting grooves 212 on the outer side surface of annular fixed part 21 there are two sealing element 4.
In description in the present invention, it should be noted that the orientation of the instructions such as term " on ", "lower" or position are closed
System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, rather than
The structure of indication or suggestion meaning has specific orientation, is constructed and operated in a specific orientation, therefore should not be understood as to this
The limitation of utility model.
Although embodiment disclosed by the application is as above, the content only for ease of understanding the application and use
Embodiment is not limited to the application.Technical staff in any the application fields, is taken off not departing from the application
Under the premise of the spirit and scope of dew, any modification and variation, but the application can be carried out in the form and details of implementation
Scope of patent protection, still should be subject to the scope of the claims as defined in the appended claims.
Claims (10)
1. a kind of radar levelmeter, including electromagnetic horn and lens, guided wave access, the lens are formed in the electromagnetic horn
Positioned at the outlet side of the guided wave access, it is characterised in that: the electromagnetic horn is equipped with air intake passage, the air intake passage tool
There is entrance and exit, the lens are equipped with air-guiding aisle, and the air-guiding aisle includes annular wind guide tank and leads with the annular
The exhaust vent of wind groove connection, the outlet of the air intake passage are connected to the annular wind guide tank.
2. radar levelmeter according to claim 1, it is characterised in that: the air intake passage has an outlet；
Alternatively, the air intake passage has multiple outlets, and multiple outlets are uniformly distributed along the circumferential direction of the electromagnetic horn.
3. radar levelmeter according to claim 1, it is characterised in that: the guided wave access includes upper part and lower part
Part, the cross-sectional area of the low portion are greater than the cross-sectional area of the upper part, and the low portion and it is described on
Step surface is formed between portion part, the outlet of the air intake passage is set in the side wall surface of the low portion, the lens
It is fixed to the low portion.
4. radar levelmeter according to any one of claim 1-3, it is characterised in that: the annular wind guide tank setting exists
On the outer side surface of the lens, the outlet of the air intake passage is set in the interior sidewall surface of the electromagnetic horn.
5. radar levelmeter according to claim 4, it is characterised in that: the edge of the lens is equipped with annular fixed part,
The annular wind guide tank is arranged on the outer side surface of the annular fixed part, and the exhaust vent setting is in the annular fixed part
Interior sidewall surface on.
6. radar levelmeter according to any one of claim 1-3, it is characterised in that: the air-guiding aisle includes along institute
State circumferentially uniformly distributed multiple exhaust vents of lens.
7. radar levelmeter according to any one of claim 1-3, it is characterised in that: the lens and the loudspeaker day
Line passes through retaining ring axial restraint.
8. radar levelmeter according to claim 5, it is characterised in that: be equipped in the interior sidewall surface of the electromagnetic horn
Nonmetallic retaining ring, the annular fixed part are supported on the nonmetallic retaining ring.
9. radar levelmeter according to claim 8, it is characterised in that: it is described annular fixed part outer side surface with it is described
Sealing element is equipped between the interior sidewall surface of electromagnetic horn.
10. radar levelmeter according to claim 9, it is characterised in that: set on the outer side surface of the annular fixed part
There is the annular mounting groove for installing the sealing element.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821922705.9U CN209131782U (en) | 2018-11-21 | 2018-11-21 | A kind of radar levelmeter |
| PCT/CN2019/088586 WO2020103416A1 (en) | 2018-11-21 | 2019-05-27 | Horn antenna and radar level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821922705.9U CN209131782U (en) | 2018-11-21 | 2018-11-21 | A kind of radar levelmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209131782U true CN209131782U (en) | 2019-07-19 |
Family
ID=67246116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821922705.9U Active CN209131782U (en) | 2018-11-21 | 2018-11-21 | A kind of radar levelmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209131782U (en) |
-
2018
- 2018-11-21 CN CN201821922705.9U patent/CN209131782U/en active Active
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