CN204535815U - A kind of mounting structure of capacitance level gauge - Google Patents
A kind of mounting structure of capacitance level gauge Download PDFInfo
- Publication number
- CN204535815U CN204535815U CN201520075909.3U CN201520075909U CN204535815U CN 204535815 U CN204535815 U CN 204535815U CN 201520075909 U CN201520075909 U CN 201520075909U CN 204535815 U CN204535815 U CN 204535815U
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- China
- Prior art keywords
- inner ring
- level gauge
- outer tube
- positioning seat
- mounting structure
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Abstract
The utility model discloses a kind of mounting structure of capacitance level gauge, comprise interior pipe, be coaxially coated at the outer tube of interior pipe, bottom the connection of fixing described inner and outer tubes and connection header; Described connection header comprises insulation sleeve, positioning seat, the conductive sheet of signal on conducting internal tube, and connects the cable of conductive sheet; Wherein, described insulation sleeve has thin portion and thick portion, and its thin portion inserts inner tube wall and is connected with it, has passage gaps between its thick portion and outer tube wall; Described positioning seat is fixedly clamped described insulation sleeve and outer tube, it comprises integrated inner ring, outer shroud and connects the first-class communication connection of its inner ring and outer shroud, inner ring is inserted insulation sleeve inwall and is connected with it, outer shroud tightly overlaps outer tube outer wall and is fixedly connected with it, and described cable stretches out in positioning seat by the threading portion of inner ring.Stable connection between the utility model inner and outer tubes, self interference that syndeton is brought to liquid level gauge is little, and install convenient.
Description
Technical field
The utility model relates to a kind of liquid level gauge by capacitance variations determination liquid level between inner and outer tubes, more particularly its mounting structure.
Background technology
Insulate between the metal inner pipe of capacitance level gauge and outer tube, form an electric capacity, when liquid level rises between inner and outer tubes, between two pipes, media variations is to make the electric capacity respective change of generation, and transmitter determines corresponding liquid level according to gained electric capacity.In common capacitance level gauge, the syndeton connecting inner and outer tubes is formed in the following manner, weld conductive sheet on inner pipe, conductive sheet is connected to cable, then insulation sleeve is connected with interior pipe, then uses internal locking ring fixed insulation cover, internal locking ring is fixedly connected with sheet, outer tube overlaps upper bed-plate ring, by the mode of welding, the place that internal locking ring, brace are connected with base ring is fixed.Installation steps are loaded down with trivial details; probably cause connection not in place; cause the exception of Signal transmissions or disturbed, and this mounting structure is firm not, easily loosens; because brace needs to pass through liquid; thus need spot welding for the connection between brace and base ring, syndeton is easily fallen and is come off, for the large-scale gas tank gas cylinder using liquid level gauge to measure liquid level; scrapping of liquid level gauge just equals scrapping of gas tank gas cylinder itself, causes heavy losses.
Utility model content
The purpose of this utility model is to provide a kind of mounting structure of capacitance level gauge, the stable connection between inner and outer tubes, and self interference that syndeton is brought to liquid level gauge is little, and install convenient.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme: a kind of mounting structure of capacitance level gauge, comprises interior pipe, is coaxially coated at the outer tube of interior pipe, bottom the connection of fixing described inner and outer tubes and connection header; Described connection header comprises insulation sleeve, positioning seat, the conductive sheet of signal on conducting internal tube, and connects the cable of conductive sheet; Wherein, described insulation sleeve has thin portion and thick portion, and its thin portion inserts inner tube wall and is connected with it, has passage gaps between its thick portion and outer tube wall; Described positioning seat is fixedly clamped described insulation sleeve and outer tube, it comprises integrated inner ring, outer shroud and connects the first-class communication connection of its inner ring and outer shroud, inner ring is inserted insulation sleeve inwall and is connected with it, outer shroud tightly overlaps outer tube outer wall and is fixedly connected with it, and described cable stretches out in positioning seat by the threading portion of inner ring.
According to an embodiment of the present utility model, described conductive sheet is provided with at least two perforates, and heart yearn one end of described cable is successively passed perforate and is weldingly fixed in described conductive sheet by sheet metal.
According to an embodiment of the present utility model, described conductive sheet is cruciformity, and is fixedly welded on interior pipe top ends.
According to an embodiment of the present utility model, the threading portion of described positioning seat inner ring establishes insulation wire bushing, the internal diameter of described insulation wire bushing is greater than the external diameter of cable.
According to an embodiment of the present utility model, the threading portion of described inner ring is positioned at the axial direction of inner ring, and described insulation wire bushing comprises body portion and blocking part, and its body portion inserts the threading portion of inner ring, its blocking part props up the lower surface of inner ring, and described lower surface is the plane of inner ring near described conductive sheet.
According to an embodiment of the present utility model, comprise bottom insulation cover bottom described connection, bottom positioning seat; Described bottom insulation cover comprises thin portion and thick portion, and its thin portion inserts inner tube wall and is connected with it, has passage gaps between its thick portion and outer tube wall; Described bottom positioning seat be fixedly clamped described bottom insulation cover and outer tube, it second communication connection comprising integrated inner ring, outer shroud and connect its inner ring and outer shroud, inner ring is inserted bottom insulation cover inwall and is connected with it, and outer shroud is tightly placed in outer tube outer wall and is fixedly connected with it.
According to an embodiment of the present utility model, described insulation sleeve and bottom insulation cover are insulation swivel nut, the thin portion of insulation sleeve and bottom insulation cover is threaded portion, be spirally connected with the inwall of interior pipe top and bottom respectively, the thick portion external diameter of insulation sleeve and bottom insulation cover is all greater than interior pipe external diameter and is less than outer tube diameter.
According to an embodiment of the present utility model, the material of described insulation sleeve and bottom insulation cover is teflon.
According to an embodiment of the present utility model, the Cu Bu outer face edge of described bottom insulation cover is provided with chamfering.
According to an embodiment of the present utility model, described outer shroud side is provided with through wires hole, described through wires hole is established insulation protective ring, and described cable is by passing outer shroud through wires hole behind the inner ring threading portion of positioning seat.
After adopting technique scheme, the utility model compared with prior art has following outstanding advantages: be connected and fixed by connection header between outer tube and interior pipe, be connected and fixed by tight inserting mode between insulation sleeve and interior pipe, insulation between outer tube and insulation sleeve negotiable liquid in other words conj.or perhaps keeps gas connectivity, by integrated positioning seat by insulation sleeve and outer tube clamping, positioning seat is fixedly connected with outer tube, such as be welded to connect in the outer tube outer annular edge edge connected, when mounting structure decreases installation, parts connect self undesired signal caused not in place, capacitance measurement has more accuracy, and the spot welding avoided between component connects, firmly not easily broke, extend the serviceable life of liquid level gauge.
Further, between conducting internal tube and outer tube electric capacity conductive sheet on establish at least two perforates, to be welded on sheet metal after the heart yearn of cable is wound around through perforate successively (such as aluminium flake etc. can conduct electricity hard metal sheet), this cable connected mode makes cable not easily pull apart, and liquid level gauge is more firm.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view of the mounting structure of a kind of capacitance level gauge of the utility model embodiment;
Fig. 2 is the exploded perspective view of the capacitance level gauge of Fig. 1;
Fig. 3 is the enlarged diagram of the local X in Fig. 1;
Fig. 4 is the enlarged diagram of the local Y in Fig. 1;
Fig. 5 is a kind of positioning seat schematic diagram of the utility model embodiment.
Embodiment
For enabling above-mentioned purpose of the present utility model, feature and advantage become apparent more, are described in detail embodiment of the present utility model below in conjunction with accompanying drawing.
Set forth a lot of detail in the following description so that fully understand the utility model.But the utility model can be much different from alternate manner described here to implement, those skilled in the art can when doing similar popularization without prejudice to when the utility model intension, and therefore the utility model is by the restriction of following public concrete enforcement and concrete accompanying drawing.
Fig. 1 shows a kind of installation cross-section structure of capacitance level gauge, comprises interior pipe 1, is coaxially coated at the outer tube 2 of interior pipe 1, bottom the connection of fixing described interior pipe 1 and outer tube 2 and connection header.Inner and outer tubes are independently parts before the mounting, common, the length of outer tube is longer than the length of interior pipe, for concise and to the point description, in the connection of connection header with each component and interior pipe outer tube that are connected bottom, do not specifically note the bottom of inner and outer tubes or top, but be appreciated that, described connection bottom is the syndeton for connecting bottom inner and outer tubes, and described connection header is the syndeton for connecting inner and outer tubes top.
Concrete, liquid level gauge is carried out blast signal by Fig. 2, and connection header comprises insulation sleeve 31, positioning seat 32, for the conductive sheet 33 of signal on conducting internal tube 1, and connects the cable 34 of conductive sheet 33.Positioning seat 32 is one-body molded, liquid level gauge is installed convenient, and avoids the disturbing factor introduced when installing numerous and diverse component, and the measurement of liquid level gauge to electric capacity is more accurate.Mounting means comprises: first cable 34 and conductive sheet 33 are connected and fixed, conductive sheet 33 is welded on interior pipe 1, certain space is reserved then to connect insulation sleeve 31 in interior pipe 1 top after welding conductive sheet, insulation sleeve 31 is connected with interior pipe 1, and part is stayed outside interior pipe 1, stay part outside interior pipe 1 and outer tube 2 with positioning seat 32 insulation sleeve 31 that is fixedly clamped again, the edge welding of outer tube 2 can be connected further at positioning seat 32.The mounting structure formed thus, firmly resistance toly falls, long service life.
Referring to Fig. 3, Local map X amplifies connection header, described insulation sleeve 31 has the thin portion of same inner diameter and thick portion, in its thin portion inserts, pipe 1 inwall is connected with interior pipe 1, the external diameter in thin portion cooperatively interacts with interior pipe 1 internal diameter thus makes to be connected closely between the two, remain with passage gaps between its thick portion and outer tube 2 inwall, this passage gaps is used for by liquid, and also namely the external diameter in thick portion is less than the internal diameter of outer tube 2, positioning seat 32 is fixedly clamped described insulation sleeve 31 and outer tube 2, positioning seat 32 such as shown in Fig. 5, it comprises integrated inner ring 321, outer shroud 322 and connect described inner ring 321 and outer shroud 322 and the first-class communication connection 323 of negotiable liquid, composition graphs 2 and Fig. 5, inner ring 321 embeds insulation sleeve 31 inwall and is connected with it, outer shroud 322 tightly cover outer tube 2 outer wall is connected with it, first-class communication connection 323 is provided with opening, the discrepancy that this opening is used for liquid in other words conj.or perhaps in order to ensure the connection header gas flow general character so that liquid is come in and gone out between inner and outer pipes, cause the change of electric capacity, gained electric capacity is transferred in outer transmitter by cable 34 and processes, described cable 34 stretches out positioning seat 32 by the threading portion of inner ring 321.
In the embodiment that a cable 34 and conductive sheet 33 are connected and fixed, described conductive sheet 33 is provided with at least two perforates, the conductive sheet 33 of Fig. 2 is provided with two perforates, the heart yearn of described cable 34 is successively through after perforate, by sheet metal, heart yearn is welded and fixed, described metal sheets is as being aluminium flake, because heart yearn is likely pullled, the cable of prior art is by being welded in conductive sheet after lock sleeve, easily make heart yearn sealing-off, signal is caused to transmit or to transmit generation error, snarled by heart yearn around hole and the mode be welded and fixed with sheet metal, the strength of joint of heart yearn can be ensured.
Conductive sheet 33 1 aspect is for transmitting the signal (capacitance signal) of interior pipe 1 to heart yearn, ensure gas or the flow path of connection header on the other hand, in one embodiment, referring to Fig. 2, for ease of welding, described conductive sheet 33 is in cruciformity, and when installing liquid level gauge, four ends of cross are weldingly fixed on interior pipe 1.
Continue referring to Fig. 3, the threading portion of described inner ring 321 is positioned at the axial direction of inner ring 321, for alleviating the wearing and tearing of cable 34, the threading portion of described inner ring 321 establishes insulation wire bushing 35, the internal diameter of described insulation wire bushing 35 is greater than the external diameter of cable 34, cable 34 stretches out in positioning seat 32 through insulation wire bushing 35, cable 34 has movable space in insulation wire bushing 35, this space ensures the circulation of gas, connection header and the circulation being connected bottom gas, ensure that liquid freely can be elevated in interior pipe 1, and reduce the resistance of liquid level gauge.
Further, as Fig. 3, described insulation wire bushing 35 comprises body portion and blocking part, the body portion of described insulation wire bushing 35 inserts the threading portion of inner ring 321 until inner ring 321 exit of extraction cable 34, the blocking part of insulation wire bushing 35 props up the lower surface of inner ring 321, and described lower surface is the plane of inner ring 321 near described conductive sheet 33, and in interior pipe 1, liquid rising can cause air pressure to impact, insulation wire bushing 35 is not welded in inner ring 321, is easy to be rushed to open.
Referring to Fig. 4, Local map Y amplifies connection bottom, and described connection bottom comprises bottom insulation cover 41, bottom positioning seat 42, described bottom insulation cover 41 comprises thin portion and thick portion, and pipe 1 inwall in its thin portion connects, leaves the passage gaps by liquid between its thick portion and outer tube 2 inwall, described bottom positioning seat 42 is fixedly clamped described bottom insulation cover 41 and outer tube 2, it comprises integrated inner ring 421, outer shroud 422 and connect described inner ring 421 and outer shroud 422 and the second communication connection 423 of liquid can be passed in and out, the effect of second communication connection 423 is identical with the effect of first-class communication connection, the inner ring 421 of bottom positioning seat 42 is inserted bottom insulation and is overlapped 41 inwalls and be connected with it, outer shroud 422 tightly cover outer tube 2 outer wall is connected with outer tube, bottom insulation cover 41, bottom positioning seat 42 can with the insulation sleeve 31 of connection header, positioning seat 32 is identical, do not repeat them here.
Preferably, described insulation sleeve 31 and bottom insulation cover 41 are insulation swivel nut, the thin portion of insulation sleeve 31 and bottom insulation cover 41 is threaded portion, is spirally connected respectively with interior pipe 1 inwall, and the thick portion external diameter of insulation sleeve 31 and bottom insulation cover 41 is all greater than interior pipe 1 external diameter and is less than outer tube 2 internal diameter.The material of insulation sleeve 31 and bottom insulation cover 41 can be such as teflon.
Interior between pipe 1 and outer tube 2 with liquid level change turnover for being more conducive to liquid, the Cu Bu outer face edge of bottom insulation cover 41 is provided with chamfering, increases liquid entrance, can alleviate buoyancy resistance when liquid level gauge is inserted in liquid.
In an embodiment, referring to Fig. 2 and Fig. 3, described outer shroud 322 side is provided with through wires hole, described through wires hole is established insulation protective ring 36, and described cable 34 is by passing outer shroud 322 through wires hole behind the inner ring 321 threading portion of positioning seat 32.
Be connected and fixed by connection header between the utility model outer tube and interior pipe, be connected and fixed by tight inserting mode between insulation sleeve and interior pipe, insulation between outer tube and insulation sleeve negotiable liquid in other words conj.or perhaps keeps gas connectivity, by integrated positioning seat by insulation sleeve and outer tube clamping, positioning seat is fixedly connected with outer tube, such as be welded to connect in the outer tube outer annular edge edge connected, when mounting structure decreases installation, parts connect self undesired signal caused not in place, capacitance measurement has more accuracy, and the spot welding avoided between component connects, firmly not easily broke, extend the serviceable life of liquid level gauge.
Further, between conducting internal tube and outer tube electric capacity conductive sheet on establish at least two perforates, to be welded on sheet metal after the heart yearn of cable is wound around through perforate successively (such as aluminium flake etc. can conduct electricity hard metal sheet), this cable connected mode makes cable not easily pull apart, and liquid level gauge is more firm.
Although the utility model with preferred embodiment openly as above; but it is not for limiting claim; any those skilled in the art are not departing from spirit and scope of the present utility model; can make possible variation and amendment, the scope that therefore protection domain of the present utility model should define with the utility model claim is as the criterion.
Claims (10)
1. a mounting structure for capacitance level gauge, comprises interior pipe (1), is coaxially coated at the outer tube (2) of interior pipe (1), bottom the connection of fixing described interior pipe (1) and outer tube (2) and connection header; It is characterized in that, described connection header comprises insulation sleeve (31), positioning seat (32), for the conductive sheet (33) of the upper signal of conducting internal tube (1), and connects the cable (34) of conductive sheet (33); Wherein, described insulation sleeve (31) has thin portion and thick portion, and in its thin portion inserts, pipe (1) inwall is connected with it, has passage gaps between its thick portion and outer tube (2) inwall; Described positioning seat (32) is fixedly clamped described insulation sleeve (31) and outer tube (2), it first-class communication connection (323) comprising integrated inner ring (321), outer shroud (322) and connect its inner ring (321) and outer shroud (322), inner ring (321) is inserted insulation sleeve (31) inwall and is connected with it, outer shroud (322) tightly overlaps outer tube (2) outer wall and is fixedly connected with it, and described cable (34) stretches out in positioning seat (32) by the threading portion of inner ring (321).
2. the mounting structure of capacitance level gauge as claimed in claim 1, it is characterized in that, described conductive sheet (33) is provided with at least two perforates, and heart yearn one end of described cable (34) is successively passed perforate and is weldingly fixed in described conductive sheet (33) by sheet metal.
3. the mounting structure of capacitance level gauge as claimed in claim 1, it is characterized in that, described conductive sheet (33) in cruciformity, and is fixedly welded on interior pipe (1) top ends.
4. the mounting structure of capacitance level gauge as claimed in claim 1, it is characterized in that, the threading portion of described positioning seat (32) inner ring (321) establishes insulation wire bushing (35), the internal diameter of described insulation wire bushing (35) is greater than the external diameter of cable (34).
5. the mounting structure of capacitance level gauge as claimed in claim 4, it is characterized in that, the threading portion of described inner ring (321) is positioned at the axial direction of inner ring (321), described insulation wire bushing (35) comprises body portion and blocking part, its body portion inserts the threading portion of inner ring (321), its blocking part props up the lower surface of inner ring (321), and described lower surface is the plane of inner ring (321) near described conductive sheet (33).
6. the mounting structure of capacitance level gauge as claimed in claim 1, is characterized in that, described connection bottom comprises bottom insulation cover (41), bottom positioning seat (42); Described bottom insulation cover (41) comprises thin portion and thick portion, and in its thin portion inserts, pipe (1) inwall is connected with it, has passage gaps between its thick portion and outer tube (1) inwall; Described bottom positioning seat (42) is fixedly clamped described bottom insulation cover (41) and outer tube (2), it second communication connection (423) comprising integrated inner ring (421), outer shroud (422) and connect its inner ring (421) and outer shroud (422), inner ring (421) is inserted bottom insulation cover (41) inwall and is connected with it, and outer shroud (422) is tightly placed in outer tube (2) outer wall and is fixedly connected with it.
7. the mounting structure of capacitance level gauge as claimed in claim 6, it is characterized in that, described insulation sleeve (31) and bottom insulation cover (41) are insulation swivel nut, the thin portion of insulation sleeve (31) and bottom insulation cover (41) is threaded portion, be spirally connected with the inwall of interior pipe (1) top and bottom respectively, the thick portion external diameter of insulation sleeve (31) and bottom insulation cover (41) is all greater than interior pipe (1) external diameter and is less than outer tube (2) internal diameter.
8. the mounting structure of capacitance level gauge as claimed in claim 6, it is characterized in that, the material of described insulation sleeve (31) and bottom insulation cover (41) is teflon.
9. the mounting structure of capacitance level gauge as claimed in claim 6, it is characterized in that, the Cu Bu outer face edge of described bottom insulation cover (41) is provided with chamfering.
10. the mounting structure of capacitance level gauge as claimed in claim 1, it is characterized in that, described outer shroud (322) side is provided with through wires hole, described through wires hole is established insulation protective ring (36), described cable (34) is by passing outer shroud (322) through wires hole behind inner ring (321) the threading portion of positioning seat (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520075909.3U CN204535815U (en) | 2015-02-03 | 2015-02-03 | A kind of mounting structure of capacitance level gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520075909.3U CN204535815U (en) | 2015-02-03 | 2015-02-03 | A kind of mounting structure of capacitance level gauge |
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| Publication Number | Publication Date |
|---|---|
| CN204535815U true CN204535815U (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520075909.3U Expired - Fee Related CN204535815U (en) | 2015-02-03 | 2015-02-03 | A kind of mounting structure of capacitance level gauge |
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| CN (1) | CN204535815U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568055A (en) * | 2015-02-03 | 2015-04-29 | 上海雷尼威尔技术有限公司 | Installing structure of electric capacity type liquidometer |
-
2015
- 2015-02-03 CN CN201520075909.3U patent/CN204535815U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568055A (en) * | 2015-02-03 | 2015-04-29 | 上海雷尼威尔技术有限公司 | Installing structure of electric capacity type liquidometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 Termination date: 20190203 |
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| CF01 | Termination of patent right due to non-payment of annual fee |