CN204441461U - Radar thing liquid level gauge antenna structure - Google Patents
Radar thing liquid level gauge antenna structure Download PDFInfo
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- CN204441461U CN204441461U CN201520133346.9U CN201520133346U CN204441461U CN 204441461 U CN204441461 U CN 204441461U CN 201520133346 U CN201520133346 U CN 201520133346U CN 204441461 U CN204441461 U CN 204441461U
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Abstract
A kind of radar thing liquid level gauge antenna structure, comprises a body, a coaxial line group, an impedance adapter and a connection assembly.Body comprises an accommodation space and is arranged at the circuit board assemblies in accommodation space.Coaxial line group is arranged in body and is electrically connected with circuit board assemblies.Impedance adapter is connected with coaxial line group.Connection assembly is combined with body one-body moldedly.Connection assembly is sheathed on impedance adapter and coaxial line group, and connection assembly is provided with the signal transmission space be communicated with accommodation space, and wherein signal transmission space can allow impedance adapter send described detection signal and receive described reflected signal.Shorten by this and assemble man-hour, promote the antenna structure of tolerance simultaneously.
Description
Technical field
The utility model relates to a kind of antenna structure, and particularly a kind of shortening assembles man-hour, promotes the radar thing liquid level gauge antenna structure of tolerance simultaneously.
Background technology
Material in existing wish detection one material barrel or the height of liquid level are a bucket walls ultrasonic waves level meter or a radar levelmeter being installed on this material barrel top, utilize the turnaround time difference of ultrasonic waves or radar wave to calculate the height of material or liquid level.Comparing ultrasonic waves level meter due to radar levelmeter can material or liquid level more accurately, and therefore radar levelmeter is day by day widely used in the position checkout area institutes such as various powder, solid or liquid.
Radar wave thing liquid level gauge mainly industrial, chemical industry with, food with and agriculture grain stock chest in crop liquid level sensing use, mainly by the sensing apparatus of transmission circuit and antenna combination.Due to radar wave thing liquid level gauge place place all belong to high temperature, high pressure, dust, dew around or have the adverse circumstances of soda acid.For avoiding the transmission circuit of radio frequency and sensing circuit junction box to disturb by external context, and affecting its opering characteristic of electric apparatus, measurement accuracy and sensing circuit life-span etc., desirable sealing effectiveness must be had.If not, will causing transmission circuit and sensing element and affect improperly, failing except causing sensor effectively to receive except the reflected signal of determinand, also by the signal disturbing of extrinsic factor and can affect, and then best signal quality cannot be obtained.
The existing contactless radar wave thing liquid level gauge being applied to the industrial and mineral such as strong acid or highly basic, the difficult tired environment of chemical industry, complex structure, spare part is more, makes sealing effectiveness not good, and assembling increases man-hour.In view of the above problems, how to promote the anti acid alkali performance of thing liquid level gauge, with the qualification rate of improving product and other object, be necessary research and develop and seek feasible solution further in fact.
Utility model content
Technical problem to be solved in the utility model be to provide a kind of structure simplify can shorten assembling man-hour, promote radar thing liquid level gauge antenna structure that is shock-resistant and acid-alkali-corrosive-resisting simultaneously.
To achieve these goals, the utility model provides a kind of radar thing liquid level gauge antenna structure, and for sending a detection signal to a material to be measured and receiving a reflected signal, this antenna structure comprises:
One body, comprises an accommodation space and is arranged at the circuit board assemblies in this accommodation space;
One coaxial line group, is arranged in this body and is electrically connected with this circuit board assemblies;
One impedance adapter, is connected with this coaxial line group; And
One connection assembly, be combined with this body one-body moldedly, this connection assembly is sheathed on this impedance adapter and this coaxial line group, and this connection assembly be provided be communicated with this accommodation space one allow this impedance adapter send this detection signal and to receive the signal transmission space of this reflected signal.
Above-mentioned antenna structure, wherein, also comprises a sleeve antenna, and be provided with should a sheathed space of coupling assembling in this sleeve antenna, this sleeve antenna this coupling assembling coated be also incorporated on this body.
Above-mentioned antenna structure, wherein, this sleeve antenna to should the extension shape in signal transmission space comprise one coniform, arc-shaped or plane one of them.
Above-mentioned antenna structure, wherein, also comprise the guide of this coaxial line group coated, this guide is arranged in this accommodation space of this body.
Above-mentioned antenna structure, wherein, this accommodation space and this signal transmission are spatially located on same axis.
Above-mentioned antenna structure, wherein, this signal transmission space is a cone-shaped structure, and the opening of this cone-shaped structure is towards becoming large gradually away from this impedance adapter direction.
Above-mentioned antenna structure, wherein, this impedance adapter also comprises an axial limiter, this axial limiter is provided with a through hole of this impedance adapter of coupling, this impedance adapter is a tubular body, arrange a transmission terminal in this tubular body and protrude from a transfer connector of this tubular body one end, this transmission terminal, this transfer connector and this through hole are each other along an axis sequential.
Above-mentioned antenna structure, wherein, this axial limiter also comprises a groove and a retaining wall, and this retaining wall is adjacent to this groove and is arranged at this axial limiter bottom, and this impedance adapter is installed on this through hole and is connected to this retaining wall.
Above-mentioned antenna structure, wherein, this transfer connector of this tubular body is also provided with a location structure, and this axial limiter is provided with a detent, and this location structure is positioned this detent of this axial limiter.
Above-mentioned antenna structure, wherein, this impedance adapter also comprises a polarization labelling piece, and this transmission terminal is a step structure of sequentially decreasing thickness towards this signal transmission direction in space, and this polarization labelling piece and this step structure are positioned at same side.
Beneficial functional of the present utility model is:
The utility model also has following effect, utilize integrated connection assembly, the sheathed impedance adapter in its one end is also incorporated on body, and the other end forms signal transmission space, so can improve qualification rate, and the advantage that there is improving performance consistency and shorten assembling man-hour.In addition, utilize axial limiter closely matched impedance adapter, the usefulness that radiofrequency signal can reach maximum transmitted in operation frequency range can be controlled, and can isolated DC high pressure, protective circuit board component is without prejudice.
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail, but not as to restriction of the present utility model.
Accompanying drawing explanation
Fig. 1 is the phantom of the utility model antenna structure entirety;
Fig. 2 is the block diagram of the utility model antenna structure;
Fig. 3 is the decomposed figure of Fig. 1;
Fig. 4 A is another enforcement illustration that sleeve antenna extends shape;
Fig. 4 B is that sleeve antenna extends the another enforcement illustration of shape;
Fig. 5 is the cutaway view of the first specific embodiment of the utility model impedance adapter;
Fig. 6 is the view sub-anatomy of Fig. 5 antenna structure;
Fig. 7 is the three-dimensional exploded view of the second specific embodiment of the utility model impedance adapter;
Fig. 8 is the assembled sectional view of Fig. 7.
Wherein, Reference numeral
100 antenna structures
110 bodies
112,222 internal threads
120 accommodation spaces
130 circuit board assemblies
140 coaxial line groups
150 guides
160 impedance adapters
170 axial limiters
172 through holes
174 grooves
176 retaining walls
178 detents
180 tubular bodies
182 transfer connectors
184 transmission terminals
186 axis
188 polarization labelling pieces
190 step structures
192 location structures
200 connection assemblies
202,204 external screw threads
206 flanges
210 tooth heads
212 signal transmission spaces
214 cone-shaped structures
216 extend signal section
220 sleeve antennas
222 sheathed spaces
230 waterproof cases
250 materials to be measured
D detection signal
R reflected signal
Embodiment
Below in conjunction with accompanying drawing, structural principle of the present invention and operation principle are described in detail:
As shown in Figures 1 and 2, the utility model provides a kind of radar thing liquid level gauge antenna structure 100, sends a detection signal D and receive a reflected signal R to a material 250 to be measured.Antenna structure 100 comprises body 110, coaxial line group 140, impedance adapter 160 and a connection assembly 200.Body 110 comprises an accommodation space 120 and is arranged at the circuit board assemblies 130 in accommodation space 120.Coaxial line group 140 is arranged in body 110 and is electrically connected with circuit board assemblies 130.Impedance adapter 160 and coaxial line group 140 are electrically connected.Connection assembly 200 is combined with body 110 one-body moldedly.Connection assembly 200 is sheathed on the coaxial line group 140 of impedance adapter 160 and part, and connection assembly 200 is provided with the signal transmission space 212 be communicated with accommodation space 120, wherein signal transmission space 212 can allow impedance adapter 160 send described detection signal D and receive described reflected signal R.
In the embodiment shown in fig. 1, also comprise the guide 150 be arranged in body 110 accommodation space 120, coaxial line group 140 can through guide 150 for being wrapped by wherein.Circuit board assemblies 130 described herein comprises other circuit boards be applicable to such as radio frequency circuit board.Shown in Fig. 2, described detection signal D bang path respectively via circuit board assemblies 130, coaxial line group 140, organize anti-adapter assembly 160 and connection assembly 200 sends material 250 to be measured.The bang path receiving described reflected signal R from material 250 to be measured is also same.
Please also refer to shown in Fig. 3, the connection assembly 200 being made into integration (optimization) also comprises a sleeve antenna 220.Better one end of connection assembly 200 described herein is tooth head 210, can lock with body 110; The other end is the extension signal section 216 forming signal transmission space 212.Further, tooth head 210 outer surface is provided with external screw thread 202 and a flange 206, utilizes external screw thread 202 to be screwed together in the internal thread 112 of body 110, until flange 206 is connected on body 110.As shown in Figure 3, flange 206 side is also provided with a waterproof case 230 in case fluid invades in body 110.Be provided with a sheathed space 222 of corresponding connection assembly 200 (namely extending signal section 216) in sleeve antenna 220, extension signal section 216 can be placed in sheathed space 222.
In addition, the better sleeve antenna 220 made with Teflon or other isolation material, its one end is provided with the internal thread 222 that can be screwed together in tooth head 210 external screw thread 204, makes sleeve antenna 220 be screwed together in connection assembly 200 and abuts with body 110, as shown in Figure 1.Therefore sleeve antenna 220 can intactly coated connection assembly 200 be incorporated on body 110; antenna structure 100 is had and promotes resistance to impact, acid-alkali-corrosive-resisting (namely tolerance is better); and there is obstruct DC electrical signal, the feature that the circuit board assemblies 130 in protection body 110 is without prejudice.
In an embodiment as illustrated in figure 3, sleeve antenna 220 respective signal transmits the extension shape in space 212, and namely leading edge portion comprises one coniform.But in embodiment as shown in Figure 4 A, sleeve antenna 220 extends shape and also can be arc-shaped.Extending shape at embodiment middle sleeve antenna 220 as shown in Figure 4 B can be again plane etc., does not limit.In addition, accommodation space 120 is positioned on same axis 186 with signal transmission space 212 is better.Signal transmission space 212 is preferably a cone-shaped structure 214 (also known as bugle shape), the opening of cone-shaped structure 214, towards becoming large gradually away from impedance adapter 160 direction, makes Electric Field Distribution (figure slightly) can become large gradually along with cone-shaped structure 214.
Please also refer to shown in Fig. 5 and Fig. 6, it is analysing and observe and exploded view of the first specific embodiment of the utility model impedance adapter.Impedance adapter 160 is preferably and screws togather and be fixed in connection assembly 200 side, and is electrically connected with one end of coaxial line group 140.An axial limiter 170 is also comprised at the impedance adapter 160 of the present embodiment.Axial limiter 170 is provided with a through hole 172 of matched impedance adapter 160, and the mode that impedance adapter 160 is preferably to screw togather is fixed in the through hole 172 of axial limiter 170.That is, impedance adapter 160 outer surface is provided with external screw thread (figure slightly), is provided with internal thread (figure slightly), to screw togather each other in the through hole 172 of axial limiter 170.
In the present embodiment, impedance adapter 180 is preferably a tubular body.Arrange a transmission terminal 184 in tubular body 180 and protrude from a transfer connector 182 of tubular body 180 one end, wherein transmission terminal 184, transfer connector 182 and through hole 172 are each other along axis 186 sequential.That is, transmission terminal 184 one end is plugged in transfer connector 182, and both center lines are all positioned on above-mentioned axis 186.Please also refer to Fig. 1, transfer connector 182 one end is the one end being electrically connected at coaxial line group 140, to transmit described detection and reflected signal (scheming slightly).
In addition, in the embodiment of such as Fig. 5 and Fig. 6, axial limiter 170 also comprises groove 174 and a retaining wall 176.Retaining wall 176 is adjacent to groove 174 and is arranged at the bottom of axial limiter 170, and impedance adapter 180 is screwed together in through hole 172 and abuts and is positioned on retaining wall 176.
As shown in Figures 7 and 8, be stereo decomposing and the cutaway view thereof of the second specific embodiment of the utility model impedance adapter.In the present embodiment, the transfer connector 182 of tubular body 180 is also provided with a location structure 192, such as size is greater than the flange of tubular body 180 external diameter.Axial limiter 170 is provided with the detent 178 corresponding to location structure 192, makes location structure 192 can be positioned on the detent 178 of axial limiter 170, so completes the matching relationship of tubular body 180 and axial limiter 170.
In addition, as shown in Figure 7, impedance adapter 160 also comprises a polarization labelling piece 188, such as, with the triangle that paster or engraving mode are arranged, and is arranged on the outer surface of impedance adapter 160.But in other different embodiments, polarization labelling piece 188 also can be arranged at body 110 on the surface, does not limit.In addition, shown in previous embodiment, transmission terminal 184 is a step structure 190 of sequentially decreasing thickness towards direction, signal transmission space 212.Polarizing, labelling piece 188 is better to be positioned on same side with step structure 190.
Therefore the utility model utilizes integrated connection assembly 200, the sheathed impedance adapter 160 in its one end is also incorporated on body 110, the other end forms signal transmission space 212, so can improve qualification rate, and the advantage that there is improving performance consistency and shorten assembling man-hour.In addition, utilize axial limiter 170 closely matched impedance adapter 160, the usefulness that radiofrequency signal can reach maximum transmitted in operation frequency range can be controlled, and can isolated DC high pressure, protective circuit board component 130 is without prejudice.
Certainly; the utility model also can have other various embodiments; when not deviating from the utility model spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the utility model, but these change accordingly and are out of shape the protection range that all should belong to the claim appended by the utility model.
Claims (10)
1. a radar thing liquid level gauge antenna structure, for sending a detection signal to a material to be measured and receiving a reflected signal, it is characterized in that, this antenna structure comprises:
One body, comprises an accommodation space and is arranged at the circuit board assemblies in this accommodation space;
One coaxial line group, is arranged in this body and is electrically connected with this circuit board assemblies;
One impedance adapter, is connected with this coaxial line group; And
One connection assembly, be combined with this body one-body moldedly, this connection assembly is sheathed on this impedance adapter and this coaxial line group, and this connection assembly be provided be communicated with this accommodation space one allow this impedance adapter send this detection signal and to receive the signal transmission space of this reflected signal.
2. antenna structure as claimed in claim 1, is characterized in that, also comprise a sleeve antenna, and be provided with should a sheathed space of coupling assembling in this sleeve antenna, this sleeve antenna this coupling assembling coated be also incorporated on this body.
3. antenna structure as claimed in claim 2, is characterized in that, this sleeve antenna to should the extension shape in signal transmission space comprise one coniform, arc-shaped or plane one of them.
4. antenna structure as claimed in claim 1, it is characterized in that, also comprise the guide of this coaxial line group coated, this guide is arranged in this accommodation space of this body.
5. antenna structure as claimed in claim 1, it is characterized in that, this accommodation space and this signal transmission are spatially located on same axis.
6. antenna structure as claimed in claim 1, it is characterized in that, this signal transmission space is a cone-shaped structure, and the opening of this cone-shaped structure is towards becoming large gradually away from this impedance adapter direction.
7. antenna structure as claimed in claim 1, it is characterized in that, this impedance adapter also comprises an axial limiter, this axial limiter is provided with a through hole of this impedance adapter of coupling, this impedance adapter is a tubular body, arrange a transmission terminal in this tubular body and protrude from a transfer connector of this tubular body one end, this transmission terminal, this transfer connector and this through hole are each other along an axis sequential.
8. antenna structure as claimed in claim 7, it is characterized in that, this axial limiter also comprises a groove and a retaining wall, and this retaining wall is adjacent to this groove and is arranged at this axial limiter bottom, and this impedance adapter is installed on this through hole and is connected to this retaining wall.
9. antenna structure as claimed in claim 8, it is characterized in that, this transfer connector of this tubular body is also provided with a location structure, and this axial limiter is provided with a detent, and this location structure is positioned this detent of this axial limiter.
10. antenna structure as claimed in claim 8, it is characterized in that, this impedance adapter also comprises a polarization labelling piece, and this transmission terminal is a step structure of sequentially decreasing thickness towards this signal transmission direction in space, and this polarization labelling piece and this step structure are positioned at same side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520133346.9U CN204441461U (en) | 2015-03-10 | 2015-03-10 | Radar thing liquid level gauge antenna structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520133346.9U CN204441461U (en) | 2015-03-10 | 2015-03-10 | Radar thing liquid level gauge antenna structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204441461U true CN204441461U (en) | 2015-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520133346.9U Active CN204441461U (en) | 2015-03-10 | 2015-03-10 | Radar thing liquid level gauge antenna structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN204441461U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109196314A (en) * | 2016-02-09 | 2019-01-11 | Vega美洲公司 | Device and method for level gauging and content purity determination in depth-sounding pipe |
-
2015
- 2015-03-10 CN CN201520133346.9U patent/CN204441461U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109196314A (en) * | 2016-02-09 | 2019-01-11 | Vega美洲公司 | Device and method for level gauging and content purity determination in depth-sounding pipe |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |