CN208752211U - A kind of wall detector with moisture detecting function - Google Patents
A kind of wall detector with moisture detecting function Download PDFInfo
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- CN208752211U CN208752211U CN201821349947.3U CN201821349947U CN208752211U CN 208752211 U CN208752211 U CN 208752211U CN 201821349947 U CN201821349947 U CN 201821349947U CN 208752211 U CN208752211 U CN 208752211U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
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Abstract
The utility model discloses a kind of wall detectors with moisture detecting function, including shell, it is installed on the intracorporal detection circuit of shell, the detection circuit is for detecting hidden object location in wall, it further include multiple probes that part is set to hull outside, the probe is electrically connected with detection circuit respectively.By integrating moisture detecting device on the basis of wall detector, so that construction worker need to only rely on such equipment can be while meeting detection wall intrabody object, the moisture content of moisture content, lime mortar and cement mortar to timber can be measured again, reduce the reduction that construction personnel needs frequently to replace different detection device bring construction efficiency in construction fitment process.
Description
Technical field
The utility model relates to detection field more particularly to a kind of detectors of wall intrabody object.
Background technique
Currently, due to all kinds of parameters for needing to detect various finishing objects and finishing material in house decoration work progress,
It generally requires to carry a detecting instrument to pause greatly in construction, goes to examine for finding corresponding instrument at any time in the construction process
Relevant parameter is surveyed, and since construction environment is more severe, reliability and protective to all kinds of detection of electrons products require to compare
Height, therefore the Functional Design of testing product is all relatively simple, each detecting instrument is only used for detecting specific object, therefore
Construction personnel is frequently resulted in need not stop when needing to detect all kinds of different parameters to replace each detection instrument, it is very cumbersome and
It is inconvenient.Such as in building course such as beam, column, joist and other supporters must be placed below in wall and floor in house
In addition the masking feature of part etc also tends to lay all kinds of electric wire and metalwork etc. under metope and floor.It is being laid with
Behind good floor and metope, because of the needs of all kinds of finishings, it usually needs cut or pierce support surface, or need to set in surface
Opening is set, but must avoid injuring following support object, electric wire and pipeline etc. simultaneously.In these cases, constructor is often
Wish accurately know before check support object in the subsequent position of metope or floor, to avoid cutting or piercing them.
And when fitting up the processes such as plank and applying mortar, and need the aqueous of the moisture content to timber, lime mortar and cement mortar
Rate measures.And existing wall probe functionality is single, can only be used to detect the object hidden in wall, cannot achieve pair
The functions such as the moisture measurement of the building materials such as timber.
Utility model content
The utility model provides a kind of wall detector with moisture detecting function for deficiency in the prior art,
It is specific as follows:
A kind of wall detector with moisture detecting function, including shell, it is installed on the intracorporal detection circuit of shell, the inspection
Slowdown monitoring circuit further includes multiple probes that part is set to hull outside for detecting metal sites in wall, the probe difference
It is electrically connected with detection circuit.
Preferably, the shell end is provided with the installation pedestal for installing the probe, and the probe is provided with for adjusting
Save the regulating part of hull outside part probe length.
Preferably, the probe needles end is provided with the screw thread mobile for the regulating part, and the regulating part is fixed on
The installation pedestal is for fixing probe.
Preferably, the probe being set on shell is two, and the wall detector further includes separable installation
The protection cap for being used to cover two probes on shell.
Preferably, the detection circuit further includes water content detection circuit, and the water content detection circuit, which specifically includes, successively to be connected
The current regulating circuit connect, current amplification circuit, current-to-voltage converting circuit, in which: the current regulating circuit and probe connect
It connects, for the size of current for adjusting current amplification circuit；The current amplification circuit is connect with current regulating circuit, is used for
The electric current for flowing through probe is amplified；The current-to-voltage converting circuit is for being converted to electricity to amplified current detection value
Press detected value.
Preferably, the current regulating circuit includes first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance
R4 and first one end triode Q1, the first resistor R1 are connect with the collector of power end and the first triode Q1 respectively,
The first resistor R1 other end is connect with second resistance R2 and the first triode Q1 base stage respectively, another termination of second resistance R2
Ground, the first triode Q1 emitter passes sequentially through 3rd resistor R3 and the 4th resistance R4 is connect with probe.
Preferably, the current amplification circuit includes the 5th resistance R5, the second triode Q2, third transistor Q3, described
Described 5th one end resistance R5 is connect with power end, the 5th resistance R5 other end respectively with the second triode Q2 emitter and third
The connection of triode Q3 collector, the second triode Q3 base stage are connect by the 4th resistance R4 with probe, and described second
Triode Q2 collector is connect with third transistor Q3 base stage.
Preferably, the current-to-voltage converting circuit includes the 6th resistance R6, the 7th resistance R7, first capacitor C1 and second
Capacitor C2, third transistor Q3 emitter pass through first capacitor C1 and the 6th resistance R6 ground connection, the 7th resistance R7 mono- respectively
End is connect with third transistor Q3 emitter, and the 7th resistance R7 other end is separately connected external analog to digital conversion circuit input stage and leads to
Cross the second capacitor C2 ground connection.
Preferably, analog-digital conversion circuit as described can be integrated in back-end controller.
Preferably, the detection circuit includes and receiving in wall metal by the alternating magnetic field for generating alternating magnetic field
Influence generate induced magnetic field information metal detection module.
Preferably, the metal detection module includes for generating the AC signal generating unit of AC signal, generating friendship
The emission of magnetic field unit of varying magnetic field, the magnetic field receiving unit and signal amplifying apparatus for receiving induced magnetic field.
The utility model, which obtains, following detects mould the utility model has the advantages that passing through and integrating moisture on the basis of wall detector
Block so that construction worker only need to by such equipment can meet detect wall intrabody object while, and can be to wood
The moisture content of the moisture content of material, lime mortar and cement mortar measures, and reduces construction personnel in construction fitment process
Need the reduction of frequent more preferable different detection device bring construction efficiency.
The additional aspect of the utility model and detailed advantage will be set forth in part in the description, partially will be from following
Become obvious in description, or is recognized by the practice of the utility model.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is the structural schematic diagram of the wall detector with moisture detecting function disclosed in an embodiment of the present invention.
Fig. 2 is the structural schematic diagram of water content detection module in an embodiment of the present invention.
Fig. 3 is the structure chart of the wall detector with moisture detecting function disclosed in another embodiment of the utility model.
Fig. 4 is the schematic block circuit diagram of water content detection circuit disclosed in an embodiment of the present invention.
Fig. 5 is the circuit diagram of water content detection circuit disclosed in an embodiment of the present invention.
Fig. 6 is the circuit diagram of water content detection circuit disclosed in another embodiment of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.It should be noted that each in this specification
Embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments, each
Same and similar part may refer to each other between embodiment.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
The orientation or positional relationship of the instructions such as degree ", " thickness ", "upper", "lower", "front", "rear" is orientation based on the figure or position
Relationship is set, is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning
It must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention,
More than, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature " on ", " on
Side " and " above " include that fisrt feature is directly above or diagonally above the second feature, or is merely representative of first feature horizontal height height
In second feature.Fisrt feature under the second feature " below ", " below " and " below " include fisrt feature second feature just under
Side or obliquely downward, or first feature horizontal height is merely representative of less than second feature.
Attached drawing 1 is a kind of disclosed structure chart of the embodiment of the wall detector with moisture detecting function, wherein described
The wall detector with moisture detecting function, including shell 3, the detection circuit being installed in shell 32, the detection circuit
For detecting metal sites in wall, and part is set to multiple probes 1 of hull outside, the probe 1 respectively with detection
Circuit 2 is electrically connected.Wherein, the probe 1 may be disposed at the bottom end of shell 3, facilitate detection.Certainly it may also set up in the side of shell
Face and upper end.The shell middle and lower part is provided with battery placed cavity, and the battery placed cavity is isolated by probe 1 with detection circuit 2,
Detection circuit 2 is the pcb board for being disposed with the induction coil for detecting wall intrabody object in the attached drawing.Described in the embodiment
Wall detector by the basis of wall detector angle be integrated with moisture detecting module so that construction worker only need to be according to
By such equipment can meet detect wall intrabody object while, and can be to moisture content, lime mortar and the cement to timber
The moisture content of mortar measures, and increases construction efficiency.
Attached drawing 2 is the partial schematic diagram of the probe installation position of an embodiment, and as shown in Fig. 2,3 end of shell is set
It is equipped with the installation pedestal 31 for installing the probe 1, shown installation pedestal 31 guarantees probe in insertion measured object for fixing probe
It will not be displaced when body.As shown in Fig. 2, shown installation pedestal 31 can be the installation cavity for being set to housing bottom, shown
Probe has the installation part 11 that can be placed in installation cavity, is equipped with opening above shown installation cavity, shown opening width can be greater than
Or be equal to probe diameter but be less than 11 width of installation part, allow probe root to pass through installation cavity, while installation part is solid
Due in installation cavity, facilitate it is subsequent to probe stretch out housing parts length adjusting.Wherein, in some preferred embodiments, institute
It states the probe 1 and is additionally provided with regulating part for adjustment housings exterior portion probe length.It can be square by the regulating part
Just to probe stretch out housing parts length be adjusted so that probe adapt to it is various need to detect moisture content wait measure and monitor the growth of standing timber
Material.
In further embodiments, the probe needles rear end is provided with the screw thread mobile for the regulating part, the tune
Section part is also possible to installation part simultaneously, and the installation pedestal can be fixed on by regulating part for fixing probe.Specifically, some
The optional inside of regulating part has both can be used with fasteners, the regulating parts such as the nuts of the matched internal screw thread of needle rear end screw thread
In the length for adjusting probe and stretching out shell, installation part also can be used as by being fixed in installation pedestal to fix probe location,
It simplifies probe structure simultaneously and can easily adjust probe length and keep the sufficiently stable of probe.
Attached drawing 3 is disclosed another wall detector embodiment, and the probe being set on shell is two, described
Wall detector further includes the separable protection cap 32 for being used to cover two probes being mounted on shell.The protection cap 32
It can be fixed on by buckle structure on shell 3, for protecting the stability of probe.
It in some embodiments, further include water content detection circuit 21 in the detection circuit 2, the water content detection circuit tool
Body includes current amplification circuit 212, current regulating circuit 211, current-to-voltage converting circuit 213, the current regulation electricity
Road 211 is connect with probe 1, for adjusting the size of current for flowing through current amplification circuit 212, the current amplification circuit for pair
The electric current for flowing through probe amplifies, and the current-to-voltage converting circuit 213 is for being converted to amplified current detection value
Voltage detecting value；Wherein, the output end of the current regulating circuit 211 is connect with 212 input terminal of current amplification circuit, the electricity
212 output end of current amplifier is connect with 213 input terminal of current-to-voltage converting circuit, and the current-to-voltage converting circuit 213 is defeated
Outlet can be connect with 214 input terminal of analog to digital conversion circuit at rear portion, and analog-digital conversion circuit as described output end connects rear portion processing
Device, analog-digital conversion circuit as described is for inputing to rear portion processor after the voltage detecting value is converted to digital signal.And
In other embodiments, 213 output end of current-to-voltage converting circuit of stating can also be directly connected to integrate in rear portion processor 22
Analog-to-digital conversion module input interface.
In some embodiments, as shown in Fig. 5, specifically, the current regulating circuit 211 include first resistor R1,
Second resistance R2,3rd resistor R3, the 4th resistance R4 and the first triode Q1, the one end the first resistor R1 respectively with power supply
End is connected with the collector of the first triode Q1, and wherein power end is 3.3V DC power supply in the present embodiment, and first resistor R1 is another
One end is connect with second resistance R2 and the first triode Q1 base stage respectively, the second resistance R2 other end ground connection, and described first
Triode Q1 emitter passes sequentially through 3rd resistor R3 and the 4th resistance R4 is connect with probe.
Specifically, the current amplification circuit 212 includes the 5th resistance R5, the second triode Q2, third transistor Q3, institute
Described 5th one end resistance R5 is stated to connect with power end, the 5th resistance R5 other end respectively with the second triode Q2 emitter and
The connection of three triode Q3 collectors, the second triode Q3 base stage are connect by the 4th resistance R4 with probe, and described the
Two triode Q2 collectors are connect with third transistor Q3 base stage.
The current-to-voltage converting circuit 213 includes the 6th resistance R6, the 7th resistance R7, first capacitor C1 and the second capacitor
C2, third transistor Q3 emitter pass through respectively first capacitor C1 and the 6th resistance R6 ground connection, described 7th one end resistance R7 with
The connection of third transistor Q3 emitter, the 7th resistance R7 other end are separately connected external 214 input stage of analog to digital conversion circuit and lead to
Cross the second capacitor C2 ground connection.Voltage detecting value is converted to digital signal again and inputs to rear portion processor by the conversion circuit 214.
In some embodiments, HT46R52 or other single-chip microcontrollers can be selected in the rear portion processor, and analog to digital conversion circuit 214 can also
Directly select the analog-to-digital conversion module in the HT46R52 or other single-chip microcontrollers, such as when selecting HT46R52, can directly by
The VAD pin that current-to-voltage converting circuit output end is connected to HT46R52 carries out the conversion between analog and digital signal.
Attached drawing 6 is water content detection circuit disclosed in another embodiment, and in the present embodiment, the processor uses
527_32 single-chip microcontroller, current amplification circuit, current-to-voltage converting circuit and analog to digital conversion circuit also use other specific electricity
Road composition.
In some other embodiment, the detection circuit of the wall detector with moisture detecting function includes being used for
Alternating magnetic field is generated, and receives the metal detection mould for the induced magnetic field information that metal is influenced to generate by the alternating magnetic field in wall
Block.Specifically, the metal detection module includes for generating the AC signal generating unit of AC signal, generating alternating magnetic field
Emission of magnetic field unit, receive induced magnetic field magnetic field receiving unit and signal amplifying apparatus.Wherein, emission of magnetic field unit can
Think conductive coil.Processor controls AC signal generating unit and generates AC signal, and driving magnetic field transmitting unit generates alternation
Magnetic field, the metal in wall influenced by the alternating magnetic field, generates induced magnetic field, magnetic field receiving unit receives the induction magnetic
, and the magnetic field sensor signal received is amplified by signal amplifying apparatus, then be conveyed to processor.Processor analyzes signal
The amplitude of the induced magnetic field strength signal of amplifying device output, converts round metal kernel of section point for the amplitude information of signal and arrives
The range information of survey meter lower surface central point, can show on the display module.
In some other embodiment, the wall detector with moisture detecting function may also include wooden frame detection mould
Block, the wooden frame detecting module include capacitance sensor and detect capacitance variations detection unit, capacitance sensor by copper sheet,
Wall and the medium between copper sheet and wall are constituted, and the copper sheet is laid in the electricity of the detection unit of detection capacitance variations
On the plate of road, copper sheet is generally arranged 1~3 piece, and in the present embodiment, copper sheet is 2 pieces, and every copper sheet all forms an electricity with wall
Hold, when in being provided with 2 capacitors, when wooden frame or foreign matter are in below a certain piece of copper sheet, then the copper sheet is formed by electricity
The capacitance of appearance will change, and the detection unit by detecting capacitance variations detects that the capacitor of the copper sheet changes, from
And it determines wooden frame or foreign matter and is located at below the copper sheet.
In some other embodiment, the wall detector with moisture detecting function may also include alternating current detection
Module, the alternating current detecting module are used to detect with the presence or absence of the conducting wire being powered in wall medium, and the alternating current detects mould
Block includes the copper sheet and operational amplification circuit for receiving the electromagnetic radiation of alternating current generation, and copper sheet is arranged on circuit boards,
Certain copper sheet may be conducting wire.Operational amplifier is chosen as AD8605, when work, applies in the normal phase input end of operational amplifier
Add a reference voltage, the electromagnetic radiation of alternating current (is logical here in the copper sheet or conducting wire induction wall medium on circuit board
The electromagnetic radiation that electric lead generates), small voltage variation is generated, is amplified signal by operational amplification circuit, according to putting
The amplitude of big circuit output signal, so that it may the case where judging extraneous alternating current.Illustrate the friendship of wall medium when signal amplitude is big
Galvanic electricity is strong, on the contrary then illustrate that the alternating current of wall medium is weak.
Same and similar part can be selected mutually between each embodiment in this specification, what each embodiment stressed
It is the difference from other embodiments.The foregoing description of the disclosed embodiments enables professional and technical personnel in the field
It is enough to realize or use the utility model.Various modifications to these embodiments will be aobvious for those skilled in the art
And be clear to, the general principles defined herein can without departing from the spirit or scope of the present utility model,
It is realized in other embodiments.Therefore, the present invention will not be limited to the embodiments shown herein, and is to fit to
The widest scope consistent with the principles and novel features disclosed herein.
Claims (11)
1. a kind of wall detector with moisture detecting function, including shell, it is installed on the intracorporal detection circuit of shell, the detection
Circuit is for detecting metal sites in wall, it is characterised in that: and it further include multiple probes that part is set to hull outside, it is described
Probe is electrically connected with detection circuit respectively, and the shell end is provided with the installation pedestal for installing the probe, and the probe is set
It is equipped with the regulating part for adjustment housings exterior portion probe length.
2. the wall detector according to claim 1 with moisture detecting function, it is characterised in that: the probe needles end
End is provided with the screw thread mobile for the regulating part, and the regulating part is fixed on the installation pedestal for fixing probe.
3. the wall detector according to claim 1 to 2 with moisture detecting function, it is characterised in that: the setting
It is two in the probe on shell, the wall detector further includes that separable be mounted on shell is used to cover two spies
The protection cap of needle.
4. the wall detector according to claim 3 with moisture detecting function, it is characterised in that: the detection circuit is also
Including water content detection circuit, the water content detection circuit specifically includes sequentially connected current regulating circuit, current amplification circuit,
Current-to-voltage converting circuit, in which:
The current regulating circuit is connect with probe, for adjusting the size of current of current amplification circuit；
The current amplification circuit is connect with current regulating circuit, for amplifying to the electric current for flowing through probe；
The current-to-voltage converting circuit is for being converted to voltage detecting value to amplified current detection value.
5. the wall detector according to claim 4 with moisture detecting function, it is characterised in that: the current regulation electricity
Road includes first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4 and the first triode Q1, first electricity
Resistance the one end R1 connect respectively with the collector of power end and the first triode Q1, the first resistor R1 other end respectively with second resistance
R2 and the connection of the first triode Q1 base stage, the second resistance R2 other end ground connection, the first triode Q1 emitter is successively
It is connect by 3rd resistor R3 and the 4th resistance R4 with probe.
6. the wall detector according to claim 5 with moisture detecting function, it is characterised in that: the Current amplifier electricity
Road includes the 5th resistance R5, the second triode Q2, third transistor Q3, and described 5th one end resistance R5 is connect with power end, the
The five resistance R5 other ends are connect with the second triode Q2 emitter and third transistor Q3 collector respectively, second triode
Q3 base stage is connect by the 4th resistance R4 with probe, and the second triode Q2 collector and third transistor Q3 base stage connect
It connects.
7. the wall detector according to claim 6 with moisture detecting function, it is characterised in that: the Current Voltage turns
Changing circuit includes the 6th resistance R6, the 7th resistance R7, first capacitor C1 and the second capacitor C2, third transistor Q3 emitter difference
It being grounded by first capacitor C1 and the 6th resistance R6, described 7th one end resistance R7 is connect with third transistor Q3 emitter, the
The seven resistance R7 other ends are separately connected external analog to digital conversion circuit input terminal and are grounded by the second capacitor C2.
8. the wall detector according to claim 1 or 2 with moisture detecting function, it is characterised in that: the detection electricity
Road includes and receiving the induced magnetic field information that metal in wall is influenced to generate by the alternating magnetic field for generating alternating magnetic field
Metal detection module.
9. the wall detector according to claim 8 with moisture detecting function, it is characterised in that: the metal detection mould
Block includes for generating the AC signal generating unit of AC signal, the emission of magnetic field unit for generating alternating magnetic field, receiving induction
The magnetic field receiving unit and signal amplifying apparatus in magnetic field.
10. the wall detector according to claim 3 with moisture detecting function, it is characterised in that: the detection circuit
Including being used to generate alternating magnetic field, and receive the gold for the induced magnetic field information that metal is influenced to generate by the alternating magnetic field in wall
Belong to detecting module.
11. the wall detector according to claim 4 with moisture detecting function, it is characterised in that: the detection circuit
Including being used to generate alternating magnetic field, and receive the gold for the induced magnetic field information that metal is influenced to generate by the alternating magnetic field in wall
Belong to detecting module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821349947.3U CN208752211U (en) | 2018-08-21 | 2018-08-21 | A kind of wall detector with moisture detecting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821349947.3U CN208752211U (en) | 2018-08-21 | 2018-08-21 | A kind of wall detector with moisture detecting function |
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| Publication Number | Publication Date |
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| CN208752211U true CN208752211U (en) | 2019-04-16 |
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| CN201821349947.3U Active CN208752211U (en) | 2018-08-21 | 2018-08-21 | A kind of wall detector with moisture detecting function |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110389155A (en) * | 2019-08-23 | 2019-10-29 | 田丽莉 | A kind of mounting structure and water gauge of detection electrode |
| CN113405745A (en) * | 2021-04-16 | 2021-09-17 | 付江洪 | House water leakage detection device |
-
2018
- 2018-08-21 CN CN201821349947.3U patent/CN208752211U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110389155A (en) * | 2019-08-23 | 2019-10-29 | 田丽莉 | A kind of mounting structure and water gauge of detection electrode |
| CN113405745A (en) * | 2021-04-16 | 2021-09-17 | 付江洪 | House water leakage detection device |
| CN113405745B (en) * | 2021-04-16 | 2022-05-10 | 付江洪 | House water leakage detection device |
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