CN210862838U - Capacitance type liquid level sensor - Google Patents
Capacitance type liquid level sensor Download PDFInfo
- Publication number
- CN210862838U CN210862838U CN201922089043.2U CN201922089043U CN210862838U CN 210862838 U CN210862838 U CN 210862838U CN 201922089043 U CN201922089043 U CN 201922089043U CN 210862838 U CN210862838 U CN 210862838U
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- casing
- level sensor
- liquid level
- wire
- housing
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Abstract
The utility model discloses a capacitanc level sensor, this capacitanc level sensor includes first casing, the second casing of being connected with first casing and seal joint in the end cover of second casing, first casing, second casing and end cover assembly form an accommodating space, install probe, fixing device and control circuit board in the accommodating space, the probe passes through fixing device to be fixed in first casing, end cover detachably connects the wire connector, control circuit board card is located in the second casing and electric connection probe and wire connector. The utility model discloses a capacitive liquid level sensor passes through wire connector detachably and connects on the end cover, on one hand, the wire is directly connected in the outside of second casing in the use, has avoided the friction that forms because of direct contact between wire and the second casing, has reduced the impaired probability of wire, has prolonged the life of wire; on the other hand, the split charging is carried out through the wire connector and the second shell, and the split charging is convenient to carry and assemble.
Description
Technical Field
The utility model relates to an instrument and meter technical field especially relates to a capacitanc level sensor.
Background
The capacitance type liquid level sensor is a variable medium type capacitor which utilizes the change of the measured medium surface to cause the capacitance change, and has the advantages of large dynamic range, high response speed, small zero drift, simple structure, strong adaptability and the like.
Among the correlation technique, capacitanc level sensor's leading-out terminal adopts tip or the side mode of being qualified for the next round of competitions directly to be qualified for the next round of competitions, and the connecting wire is directly drawn forth and is passed wire guide to the outside from the inside of sensor housing, and the connecting wire is a whole with the sensor, and connecting wire and casing take place wearing and tearing easily in the use, and the oil medium invades easily, leads to the product to break down easily, and the connecting wire assembly is carried with the sensor moreover also very troublesome.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, an embodiment of the utility model expects to provide a connecting wire makes the difficult wearing and tearing of direction, and assembles and convenient to carry's capacitanc level sensor with casing partial shipment.
The technical scheme of the utility model is realized like this:
the utility model provides a capacitanc level sensor, including first casing, with the second casing that first casing is connected and seal in the end cover of second casing, first casing, second casing and end cover assembly form an accommodating space, install probe, fixing device and control circuit board in the accommodating space, the probe passes through fixing device fixes in the first casing, end cover detachably connects the wire connector, the control circuit board card is located just electricity respectively is connected in the second casing the probe with the wire connector.
Preferably, the end cover is provided with a counter bore, and the wire connector is detachably connected with the counter bore.
Preferably, the counter bore comprises a small end and a large end, a threaded hole is formed in the small end, a sealing ring is embedded in the large end, the wire connector is connected with the small end through threads, and the sealing ring is abutted to the wire connector.
Preferably, the first housing and the second housing, and the end cover and the second housing are detachably connected.
Preferably, the first housing and the second housing, and the end cover and the second housing are all connected through threads.
Preferably, the wire connector is a connector receptacle.
Preferably, the wire connector is an M12 connector receptacle.
Preferably, the probe comprises a copper rod and a protective sleeve wrapped outside the copper rod, and the copper rod is electrically connected with the control circuit board.
Preferably, the fixing device comprises a locking cap and a fastener which are respectively sleeved outside the probe, one end of the locking cap is abutted to the probe, and the other end of the locking cap is in threaded connection with the fastener.
Preferably, the electronic device further comprises a gasket, one end of the gasket is abutted against the second shell, and the other end of the gasket is abutted against the control circuit board.
The embodiment of the utility model provides a capacitanc level sensor passes through wire connector detachably and connects on the end cover, on one hand, the wire is directly connected in the outside of second casing in the use, has avoided the wire with because of the friction that direct contact formed between the second casing, has reduced the impaired probability of wire, has prolonged the life of wire; on the other hand, the assembly of wire and sensor can carry out the partial shipment through wire connector and second casing in the non-use, conveniently carries, also is convenient for simultaneously assemble.
Drawings
Fig. 1 is a cross-sectional view of a capacitive liquid level sensor provided by the present invention;
FIG. 2 is a schematic external view of the capacitive liquid level sensor shown in FIG. 1;
fig. 3 is a cross-sectional view of the end cap shown in fig. 2.
Detailed Description
In order to illustrate embodiments of the present invention or technical solutions in the prior art more clearly, the following description will be made in conjunction with the accompanying drawings in embodiments of the present invention to describe the technical solutions in the embodiments of the present invention clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Please refer to fig. 1 and fig. 2 in combination, wherein fig. 1 is a schematic structural diagram of a capacitive liquid level sensor according to the present invention; fig. 2 is a schematic view of the external structure of the capacitive liquid level sensor shown in fig. 1. The capacitance type liquid level sensor comprises a first shell 1, a second shell 2 connected with the first shell 1, an end cover 3 sealed on the second shell 2, and a gasket 4 arranged in the second shell 2. The probe comprises a first shell 1, a second shell 2 and an end cover 3, wherein the first shell, the second shell and the end cover 3 are assembled to form an accommodating space 5, a probe 6, a fixing device 7 and a control circuit board 8 are installed in the accommodating space 5, the end cover 3 is detachably connected with a wire connector 9, and the control circuit board 8 is clamped in the second shell 2 and is respectively and electrically connected with the probe 6 and the wire connector 9. The wire connector 9 is detachably connected to the end cover 3, so that on one hand, a wire is directly connected to the outside of the second shell 2 in the using process, friction between the wire and the second shell 2 due to direct contact is avoided, the damage probability of the wire is reduced, the service life of the wire is prolonged, and the product quality of the sensor is further improved; on the other hand, the assembly of the lead and the sensor in the non-use process can be separately assembled through the lead connector 9 and the second shell 2, so that the carrying is convenient, and the assembly is convenient.
The first shell 1 and the second shell 2, the end cover 3 and the second shell 2 are detachably connected. Specifically, in this embodiment, the first housing 1 and the second housing 2, and the end cover 3 and the second housing 2 are all connected by threads. The first shell 1 is a tubular structure with one closed end and the other open end, and the probe 6 is arranged in the tubular structure.
Referring to fig. 3, a cross-sectional view of the end cap shown in fig. 2 is shown. The end cover 3 is provided with a counter bore 31, specifically, an annular structure with an inner hole, and the wire connector 9 is detachably connected with the counter bore 31.
The counterbore 31 comprises a small end 311 and a large end 313, a threaded hole is formed in the small end 311, a sealing ring 10 is embedded in the large end 313, the wire connector 9 is connected with the small end 311 through threads, and the sealing ring 10 is abutted with the wire connector 9 and used for sealing a gap formed between the wire connector 9 and the end cover 3.
The wire connector 9 is a connector receptacle. Specifically, in this embodiment, the wire connector 9 is an M12 connector socket. In addition, the other part connected with the M12 connector socket is an M12 connector plug, a lead is connected to the M12 connector plug, the connector socket and the connector plug form detachable connection, and the connector plug can be pulled out in a non-use state so as to be convenient to carry.
The probe 6 is fixed in the first housing 2 through the fixing device 7, the probe 6 includes a copper rod 61 and a protective sleeve 63 wrapped outside the copper rod 61, and the copper rod 61 is electrically connected with the control circuit board 8. Specifically, in this embodiment, the protective sleeve 63 is a plastic protective sleeve.
The fixing device 7 comprises a locking cap 71 and a fastener 73 which are respectively sleeved outside the protective sleeve 63, one end of the locking cap 71 is abutted to the protective sleeve 63, and the other end of the locking cap 71 is in threaded connection with the fastener 73. Specifically, the fastening member 73 is a fastening screw.
One end of the gasket 4 is abutted against the second shell 2, the other end of the gasket 4 is abutted against the control circuit board 8, and the control circuit board 8 is clamped in the second shell 2.
The embodiment of the utility model provides a capacitanc level sensor passes through wire connector detachably and connects on the end cover, on one hand, the wire is directly connected in the outside of second casing in the use, has avoided the wire with because of the friction that direct contact formed between the second casing, has reduced the impaired probability of wire, has prolonged the life of wire; on the other hand, the assembly of wire and sensor can carry out the partial shipment through wire connector and second casing in the non-use, conveniently carries, also is convenient for simultaneously assemble.
The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a capacitanc level sensor, its characterized in that, including first casing, with the second casing that first casing is connected and seal in the end cover of second casing, first casing, second casing and end cover assembly form an accommodating space, install probe, fixing device and control circuit board in the accommodating space, the probe passes through fixing device fixes in the first casing, end cover detachably connects the wire connector, the control circuit board card is located just electricity respectively is connected in the second casing the probe with the wire connector.
2. The capacitive liquid level sensor of claim 1, wherein the end cap defines a counterbore, and the wire connector is removably coupled to the counterbore.
3. The capacitive liquid level sensor according to claim 2, wherein the counterbore comprises a small end and a large end, a threaded hole is formed in the small end, a sealing ring is embedded in the large end, the lead connector is connected with the small end through threads, and the sealing ring is abutted to the lead connector.
4. The capacitive liquid level sensor of claim 1, wherein the first housing and the second housing, and the end cap and the second housing are removably connected.
5. The capacitive liquid level sensor of claim 4, wherein the first housing and the second housing, and the end cap and the second housing are all threadably connected.
6. The capacitive liquid level sensor of claim 1, wherein the wire connector is a connector receptacle.
7. The capacitive liquid level sensor of claim 6, wherein the wire connector is an M12 connector receptacle.
8. The capacitive liquid level sensor according to claim 1, wherein the probe comprises a copper rod and a protective sleeve wrapped outside the copper rod, and the copper rod is electrically connected with the control circuit board.
9. The capacitive liquid level sensor according to claim 1, wherein the fixing device comprises a locking cap and a fastener, the locking cap and the fastener are respectively sleeved between the outer wall of the probe and the inner wall of the first housing, one end of the locking cap abuts against the probe, and the other end of the locking cap is in threaded connection with the fastener.
10. The capacitive liquid level sensor according to any one of claims 1 to 9, further comprising a gasket, wherein one end of the gasket abuts against the second housing, and the other end of the gasket abuts against the control circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922089043.2U CN210862838U (en) | 2019-11-28 | 2019-11-28 | Capacitance type liquid level sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922089043.2U CN210862838U (en) | 2019-11-28 | 2019-11-28 | Capacitance type liquid level sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210862838U true CN210862838U (en) | 2020-06-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922089043.2U Active CN210862838U (en) | 2019-11-28 | 2019-11-28 | Capacitance type liquid level sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210862838U (en) |
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2019
- 2019-11-28 CN CN201922089043.2U patent/CN210862838U/en active Active
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