CN105911598B - natural electric field detection signal receiver - Google Patents
natural electric field detection signal receiver Download PDFInfo
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- CN105911598B CN105911598B CN201610482892.2A CN201610482892A CN105911598B CN 105911598 B CN105911598 B CN 105911598B CN 201610482892 A CN201610482892 A CN 201610482892A CN 105911598 B CN105911598 B CN 105911598B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
- G01V3/088—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices operating with electric fields
Abstract
Patent of the present invention discloses a kind of natural electric field detection signal receiver, is made of detection probe I and detection II two parts of connector, wherein detection probe I includes：Detection bar 1 and detection knock-off joint 2, the detection connector II being connect with detection cable 5 include：Detect connector 3 and signal receiving circuit 4.This receiver encounters characteristic signal caused by special geobody for receiving when natural electric field is propagated in the earth formation, natural electric field signal is received by detection bar 1, signal receiving circuit 4 in the conduction of knock-off joint 2 to detection connector 3 after testing, signal pickup assembly is transmitted to after the conditioning of signal receiving circuit 4 by detection cable 5.Detection probe I of the present invention is easy to operate with the grafting for detecting connector II, it is solid and reliable to couple, and its coupled situation and signal transmission performance can be detected, it ensure that the reliability and precision of natural electric field signal detection, meet the particular surroundings requirement of field geology physical prospecting operation.
Description
Technical field
Patent of the present invention belongs to the mating special detection device in geology geophysical prospecting equipment field, and more particularly to natural electric field detects
Use signal receiver.
Background technology
In geophysics detection, the detection of mine geology disaster and groundwater exploration field, for research and analysis
Layer geological structure finds out the distribution situation of underground water source, Goaf Area and special geobody.Various detection sides are widely used
Method and instrument and equipment, such as the detection of geological radar, electrical method, very low frequency rate detection method and natural electric field detection method.Wherein day
Right electric field detecting method have many advantages, such as detection efficiency height, can continuous scanning, at low cost, while compared with other geophysical prospecting methods
With exploration efficiency height, accuracy rate is high, the advantages of to underground water and strong special geobody recognition capability.
And specific relevant natural electric field geophysical prospecting method and instrument type are also very much, such as：Audio Magnetotelluric Souding
Method, magnetotelluric sounding method, controlled-source audiomagnetotellurics sounding method etc..These detection methods and instrument are all natural by acquiring
Earth electric field signal, natural electric field signal that is, bigly, by being stored to collected natural electric field signal.And then using related
Digital signal processing method analyzes the distribution situation and changing rule of natural electric field apparent resistivity, carries out the deep structure of earth formation
Make back analysis and hazard forecasting etc..
The first step for carrying out above-mentioned detection and analysis is to pick up natural electric field signal by related detection devices, is transmitted it to
Data acquisition instrument.Therefore, electric field signal receiving device is unusual the key link, receives quality and the connection of signal performance
Whether operation is reliable, directly determines the correctness of acquired natural electric field signal.Traditional natural electric field signal receiver is big
Mostly using unpolarizable electrode, i.e., red copper bar is placed in the biscuiting porcelain jar for filling copper/saturated copper sulphate solution, red copper bar be by by
The ion of the copper-bath of biscuiting porcelain jar infiltration comes conductive.At the scene in use, needing to soak not using salt solution
The ground that polarizing electrode is contacted increases extra work to detection work and brings inconvenience.Meanwhile probe and surface soil
Contact be not just very close, the convenience degree of sampling precision and operation is all not good enough.Therefore, natural electric field signal picks up at present
The present situation of device is taken to determine, needs to develop a kind of use suitable for geology physical prospecting field work adverse circumstances, and with relatively strong
Anti- external electromagnetic field interference, natural electric field signal receiver easy to operate.
Secondly as natural electric field detection is all to be detected in the wild, working environment is more severe.Detection range
The situation of vegetation cover situation and ground soil, the dust in air etc. can all generate the detection of natural electric field signal
Very big influence.Traditional detection rod connector is there are many connecting mode when detection bar couples, such as BNC connector formula, straight cutting
Formula, thread connection and metal elastic chip etc..These connecting modes, the advantages of respectively having itself, but grasped in practical geology physical prospecting
In work, the shortcomings that respective is also exposed.
For example, BNC connector formula, easy to operate, it is mainly used for the connection of coaxial cable, but in the detection of geology physical prospecting
In the process, cable is slightly acted on by external force, and plug connector is easy for detaching, and data acquisition is caused to interrupt.Direct insertion connection mode
It is companies' mass productions such as many thunderous not, Ou Du of plug connector profession manufacturer, is used for detecting instrument transmission signal,
But during for geology physical prospecting field operation, there are the shortcomings of complicated, expensive.Consider from connection firmness
Words, thread connecting mode is very secured, but more time-consuming in connection, and the inevitable dust of field work can carry out
In ridge, it will block connector and can not work normally or even can damage screw thread.The connection of metal elastic chip, solves
Problem is stated, but its operation lifetime is limited by the shrapnel service life, it is generally all shorter, it needs to be replaced frequently.
Furthermore natural electric field detection receiving devices all at present does not have the function of itself coupled situation detection,
Exactly detection receives the whether correct positive connection of device, and operator can not know.Above-mentioned unpolarizable electrode connection when,
It is only that the copper core of detection cable is hinged, there are no from detection natural electric field detection receiving device and detection cable and
The coupled situation of detecting instrument.
At present, from the point of view of situation about understanding at the retrieval situation of data of literatures and natural electric field instrument manufacturing manufacturer,
There is no a natural electric field signal receiving device to solve the problems, such as above-mentioned.Therefore, patent of the present invention is carried out for this problem
Research.In order to solve the above technical problems, patent of the present invention provides natural electric field detection signal receiver.Using the conduction on pinnacle
Metal material makes detection bar, and detection bar is entirely insertable in the soil of detection earth's surface during use, can effectively be kept away in this way
Exempt from interference of the space stray electromagnetic signals to natural electric field signal.In detection bar coupling for rod connector one is employed with detection
The mode of the novel rotary chute Interference fit cylinder fixed pin fastening of kind.It solves and is deposited in current telluric electricity field detection well
It is inconvenient profit and couple it is insecure.The detection circuit of this natural electric field detection signal receiver institute band can be with simultaneously
Easily complete very much this detection.Signal lines are to connect the single-core shielding line of instrument and signal receiver, and core wire is used to pass
The natural electric field signal that defeated signal receiver receives, shielded layer connect with instrument simulation in normal detection, are connected in probe
Transmission detection signal during state-detection.
Invention content
In order to overcome above-mentioned technical problem, patent of the present invention provides a kind of natural electric field detection signal receiver.
A kind of natural electric field detection signal receiver is made of detection probe I and detection II two parts of connector, detects
I part of popping one's head in includes detection bar (1) and detection knock-off joint (2), and detection connector II part includes detecting connector (3), signal
Receiving circuit (4) and detection cable (5), natural electric field signal through be inserted into earth's surface detection bar (1) receive and conduct to its spiral shell
The detection knock-off joint (2) of line connection, detection knock-off joint (2) are locked by inserting mode and the fixation of rotary chute Interference fit cylinder
Solid mode with detection connector (3) connect and by natural electric field signal transduction extremely by magnetic bead (4-1), diode (4-2), capacitance
The signal receiving circuit (4) of (4-3) composition, the natural electric field signal after signal receiving circuit (4) are passed by detection cable (5)
Transport to signal pickup assembly；It is characterized in that：Detection bar (1) total length is 160mm, including front end turnery processing into 30 degree
The pinnacle structure (1-1) of the length 20mm at top angle and the cylindrical detection shaft (1-2) of rear end length 140mm, detect shaft
The internal thread hole (1-3) for connecting detection knock-off joint (2) is machined on (1-2) rear end face, is radially processed at face 5mm from the rear end
One trip bolt hole (1-4) for being used to screw in trip bolt (1-5)；The detection knock-off joint (2) is by detection bar terminal fitting
Outside the fastening that (2-1), fixed pin (2-2), public needle core (2-3), public needle core trip bolt (2-4) and internal thread hole (1-3) coordinate
Screw thread (2-5) and rubber ring (2-6) composition for being installed on detection bar terminal fitting (2-1) bottom, in detection bar terminal fitting (2-
1) the cylinder fixed pin (2-2) of 3 diameter 2mm, height 1mm are evenly distributed on outer diameter, for detecting connector (3)
During connection, the positioning runner (3- that 3 fixed pins (2-2) on knock-off joint (2) outer surface are directed at rotary joint (3-1) will be detected
Rectangular channel 1-2) is inserted into, and can be manually rotated detection knock-off joint (2), 3 fixed pins (2-2) are along arc positioning runner (3-1-2)
It is slidably inserted into tightening hole (3-1-3), realizes the positive connection of detection knock-off joint (2) and rotary joint (3-1), negative direction rotation
Knock-off joint (2) is detected, then 3 fixed pins (2-2) for detecting knock-off joint (2) are exited along arc positioning runner (3-1-2), are realized
The separation of knock-off joint (2) and rotary joint (3-1) is detected, public needle core (2-3) is inserted into the centre bore of detection bar terminal fitting (2-1)
It is interior and withstood and fixed by public needle core trip bolt (2-4)；Detect connector (3) including activity head assembly, connector chamber component,
Female needle core component, cable fixation kit；The activity head assembly includes rotary joint (3-1), female needle core socket (3-2) and opening
Annular spring leaf (3-3), female needle core jack assemblies jack (3-1-1) inner wall of rotary joint (3-1) is with 120 degree of angle interval
3 groups of positioning runners (3-1-2) and tightening hole (3-1-3) are uniformly distributed for connecting fixation, rotary joint with detection knock-off joint (2)
(3-1) has ladder interior wall construction (3-1-5), and one (3-1- of spring leaf fixed groove is machined in the stage casing of rotary joint (3-1)
4), female needle core socket (3-2) is fixed by female needle core component jack (3-2-1), spring leaf fixed groove two (3-2-2), female needle core
Bolt ring fixes internal thread (3-2-3) and fixed external screw thread (3-2-4) forms, and open annular spring leaf (3-3) is by a piece of elasticity
Metal spring washer is made, and cuts out an oblique grooving (3-3-1) in the middle, is plunged into spring leaf fixed groove one
In (3-1-4), you can be reliably linked together female needle core socket (3-2) with rotary joint (3-1), due to open annular bullet
Reed (3-3) can rotate in fixed groove so that female needle core socket (3-2) can be freely in rotary joint (3-1)
Rotation is convenient for the connection with detection knock-off joint (2) with detaching；The connector chamber component includes connector chamber ontology (3-4), electricity
Cable fixes rubber sleeve (3-5) and cable wedge shape retainer ring (3-6), and internal thread (3-4- is machined on connector chamber ontology (3-4)
1), cable, which fixes rubber sleeve (3-5) and the center of cable wedge shape retainer ring (3-6), detection cable entrance hole (3-5-1)；It is described
Female needle core component includes female needle core insulator (3-7), female needle core (3-8), female needle core insulating top cover (3-9) and female needle core and fixes spiral shell
Bolt ring (3-10), female needle core insulator (3-7) are processed into the ladder shaft shoulder (3-7-1) with the shaft shoulder, female needle core fixing bolt ring
Needle core fixing bolt ring external screw thread (3-10-1) and cable welding interface (3-10-2) are machined on (3-10), for working as detection bar
When connector is inserted into detection connector, since female needle core fixing bolt ring (3-10) and detection bar body are short-circuit, you can realize
The A nodes of signal receiving circuit (4) and B node short circuit, are detected for signal receiver connection status；The cable fixation kit
Rubber sleeve (3-12) is fixed including tail-hood (3-11), cable buttock line, tail-hood (3-11) inwall processing has fixed internal thread (3-11-
1), the center of cable buttock line fixation rubber sleeve (3-12) is machined with cable entry port (3-12-1).
The advantageous effect of patent of the present invention is：Earth electric field signal in being detected for natural electric field is detected, and will be examined
The information of survey sends detection device to by detection cable and carries out processing analysis, and the design of innovative detection components is effective to solve
The shortcomings that traditional natural electric field detection components of having determined, there is convenient and reliable operation, strong antijamming capability, suitable for field operation,
The detection of natural electric field detection signal receiver connection status and the judgement of signal path state quality can be completed simultaneously.
Patent of the present invention is further described below in conjunction with the accompanying drawings.
Description of the drawings
Fig. 1 is the structure diagram of patent of the present invention；
Fig. 2 is the structure diagram of the detection bar (1) of patent of the present invention；
Fig. 3 is the structure diagram of the detection knock-off joint (2) of patent of the present invention；
Fig. 4 is the assembling schematic diagram of the detection connector activity head assembly (a) of patent of the present invention；
Fig. 5 is female needle core socket structure schematic diagram of the activity head assembly (a) of patent of the present invention；
Fig. 6 is the rotary joint structure schematic diagram of the activity head assembly (a) of patent of the present invention；
Fig. 7 is the open annular chip architecture of the spring schematic diagram of the activity head assembly (a) of patent of the present invention；
Fig. 8 is connector cavity component (b) structure diagram of patent of the present invention；
Fig. 9 is female needle core component (c) structure diagram of patent of the present invention；
Figure 10 is cable fixation kit (d) structure diagram of patent of the present invention；
Figure 11 is the signal receiving circuit figure of patent of the present invention.
Specific embodiment
Patent of the present invention is described further with embodiment below in conjunction with the accompanying drawings.
Referring to Fig. 1, this natural electric field detection signal receiver, by detection probe I and detection II two parts group of connector
Into, further can specifically be divided into detection bar (1), detection knock-off joint (2), detection connector (3), signal receiving circuit (4)
It is formed with (5) five parts of detection cable.Include detection bar (1) and detection for receiving the detection probe I of natural electric field signal
Knock-off joint (2), and pass through inserting mode and extremely detect connector II with detection connector II and conducts both received signals, receive signal warp
Signal pickup assembly is transmitted to by detection cable (5) after II internal signal receiving circuit (4) conditioning of detection connector.
This natural electric field detection signal receiver, including detection bar (1), detection knock-off joint (2), detection connector (3),
(5) five parts of signal receiving circuit (4) and detection cable form.This receiver receives the earth natural electric field and propagates in the earth formation
When encounter characteristic signal caused by special geobody or underground water.Natural electric field signal is received by detection bar (1), after testing
Signal receiving circuit (4) in knock-off joint (2) conduction to detection connector (3), through detection after signal receiving circuit improves
Cable (5) is transmitted to signal pickup assembly.This patent adapts to the particular surroundings of field work, has the advantages that water proof and dust proof, examines
Measuring staff and connector grafting are easy to operate, and connection is solid and reliable.It and can be to the connection status and channel of detection bar and connector
It can be detected, ensure that the reliability and acquisition precision of natural electric field signal acquisition.
Referring to Fig. 2, detection bar (1) penetrates different geologic bodies and underground water for picking up natural electric field signal and generates
Multidate information, total length 160mm, a diameter of 10mm, forms using cylindrical metal material is machined, detection bar (1)
Preferred material：The hard metal material of the good conductivities such as ferronickel.The pinnacle structure that a length is 20mm is cut on its top
(1-1), in order to be inserted into the soil of earth's surface to be detected.Pinnacle structure (1-1) is followed by the cylinder that length is 140mm and detects
Shaft (1-2) picks up natural electric field signal for receiving.Internal thread hole (1- is machined in the right side of detection shaft (1-2)
3), the fastening external screw thread (2-5) for detecting knock-off joint (2) left part is screwed in the internal thread hole (1- of detection shaft (1-2) right part processing
3) in, you can the fastening for completing detection bar (1) with detection knock-off joint (2) couples.And be threadably coupled within during multiple use,
It is possible that thread looseness and coming off.In order to further improve the firmness of the thread connection, patent of the present invention is detecting
Bar (1) processes the trip bolt hole (1-4) of a radial direction, wherein trip bolt (1- can be screwed in apart from the place of tail end 5mm
5).The trip bolt can withstand and destructive test knock-off joint (2) left part fastening external screw thread (2-5), for by detection bar (1) with
It is locking to detect knock-off joint (2) fixation.
Referring to Fig. 3, the detection bar terminal fitting (2-1) in detection knock-off joint (2) is using the metal identical with detecting bar (1)
Material is processed into hollow looping pit, internal diameter 12mm, outer diameter 14mm.On the outer diameter of detection bar terminal fitting (2-1)
It is evenly distributed with 3 fixed pins (2-2), fixed pin (2-2) is diameter 2mm, is highly the cylinder of 1mm, is used for and movable head
Connection is fixed in component (a).Public needle core (2-3) a diameter of 2mm in knock-off joint (2) is detected, is picked up for transmitting detection bar (1)
The natural electric field signal taken, it is therefore desirable to there is good electric conductivity, using fine copper machining.In detection bar terminal fitting
Through-hole is machined in the centre bore of (2-1), one section of internal thread is processed behind through-hole.Public needle core (2-3) is inserted into the through-hole,
Thereafter it is withstood by public needle core trip bolt (2-4), public needle core trip bolt (2-4) joins with the female thread behind through-hole into screw thread
It connects and fixes public needle core (2-3).External screw thread (2-5) is fastened in the left part processing of detection knock-off joint (2), with detecting shaft (1-
2) internal thread hole (1-3) of right part processing forms thread fitting, so as to fulfill detection bar (1) with detecting the secured of knock-off joint (2)
Connection.The bottom of detection bar terminal fitting (2-1) is equipped with rubber ring (2-6), when being inserted into for buffering detection connector (3),
The impact brought.
In patent of the present invention, the natural electric field detection signal receiver, it is characterised in that the detection connects
Device (3) is connect by activity head assembly (a), connector chamber component (b), female needle core component (c), four part group of cable fixation kit (d)
Into.
Referring to Fig. 4, the installation diagram of activity head assembly (a), it is seen that activity head assembly (a) includes rotary joint (3-1), female needle
Core socket (3-2) and open annular spring leaf (3-3), rotary joint (3-1) and female needle core socket (3-2) are using with detecting bar
(1) identical material processing.
Referring to Fig. 5, rotary joint (3-1) is process using the metal material identical with detection bar (1).Referring to its knot
Composition, it is seen that rotary joint (3-1) includes following details：The forepart of rotary joint (3-1) is machined with female needle core jack assemblies and inserts
Detection bar terminal fitting (2-1) when rotary joint (3-1) is connect with detection knock-off joint (2), is inserted into hole (3-1-1) wherein.
On rotary joint (3-1) and detection bar terminal fitting (2-1) matched end face along the circumferential direction, 120 degree of angle interval adds
Work has 3 positioning runners (3-1-2), and sliding slot is by rectangular channel matched with fixed pin (2-2) and along female needle core jack assemblies jack
The spiral chute composition processed on the inner wall of (3-1-1).In the female needle core jack assemblies jack in tail end edge of positioning runner (3-1-2)
The inner wall radial direction of (3-1-1) processes the tightening hole (3-1-3) of an a diameter of 3mm, is along the circumferential direction divided into 120 between angle
Degree 3 tightening holes (3-1-3) of processing.There is ladder interior wall construction (3-1-5) in the stage casing of rotary joint (3-1), for fixing
Female needle core component (c).
Positioning runner (3-1-2) is combined into a component with tightening hole (3-1-3), along female needle core jack assemblies jack (3-
Inner wall 1-1) is uniformly distributed 3 groups with 120 degree of angle interval.3 fixed pin (2- on detection knock-off joint (2) outer surface
2) rectangular channel of alignment positioning runner (3-1-2) is inserted into, and can be manually rotated detection knock-off joint (2), then 3 fixed pins (2-2) will
It slides, and is inserted into tightening hole (3-1-3) along arc positioning runner (3-1-2), so as to fulfill detection knock-off joint (2) and rotation
The positive connection of connector (3-1).Negative direction rotation detection knock-off joint (2), then 3 fixed pins (2-2) for detecting knock-off joint (2) will
It can exit along arc positioning runner (3-1-2), be detached so as to fulfill detection knock-off joint (2) with the simplicity of rotary joint (3-1).
It is 3mm in its inwall processing width, depth is 1mm's apart from the position of end face 10mm in the middle and back of rotary joint (3-1)
Spring leaf fixed groove one (3-1-4).
Referring to Fig. 6, female needle core socket (3-2) is process using the metal material identical with detection bar (1).It is by mother
Needle core component jack (3-2-1), spring leaf fixed groove two (3-2-2), female needle core fixing bolt ring fix internal thread (3-2-3)
External screw thread (3-2-4) is fixed with connector chamber component movable head to form.Female needle core component jack (3-2-1) is positioned at female needle core socket
The forepart of (3-2) is an interior hollow round column hole, wherein being inserted into female needle core component (c).Outside female needle core socket (3-2) middle
Path position, working width 3mm, depth are the spring leaf fixed groove two (3-2-2) of 1mm.After female needle core socket (3-2)
Female needle core fixing bolt ring is machined on the inner wall of end and fixes internal thread (3-2-3), is consolidated for female needle core with female needle core component (c)
Determine bolt ring (3-10) and carry out thread connection.Connector chamber component is machined in the outer surface of the rear end of female needle core socket (3-2)
Movable head fixes external screw thread (3-2-4), for carrying out thread connection with the internal thread (3-4-1) on connector chamber ontology (3-4).
Referring to Fig. 7, open annular spring leaf (3-3) is made by a piece of elastic metallic spring washer, is cut in the middle
Go out an oblique grooving (3-3-1).Female needle core socket (3-2) is inserted into female needle core jack assemblies jack of rotary joint (3-1)
In (3-1-1), the spring leaf fixed groove one (3-1-4) of the two and spring leaf fixed groove two (3-2-2) are aligned, then,
Open annular spring leaf (3-3) is inserted into the annulus between female needle core socket (3-2) and rotary joint (3-1)
In fixed groove, using the pointed tool of tweezers etc, oblique grooving (3-3-1) is stirred, is plunged into fixed groove, you can
Female needle core socket (3-2) is reliably linked together with rotary joint (3-1).And due to open annular spring leaf (3-3)
It can be rotated in fixed groove, and female needle core socket (3-2) can be freely rotatable in rotary joint (3-1).
Referring to Fig. 8, connector chamber component (b) fixes rubber sleeve (3-5) and electricity including connector chamber ontology (3-4), cable
Cable wedge shape retainer ring (3-6).Connector chamber ontology (3-4) is formed using the material machining identical with detection bar (1), is connected
It is cavity structure inside device chamber ontology (3-4), for placing signal receiving circuit (4).Add in connector chamber ontology (3-4) forepart
Work and the joining internal thread of activity head assembly (a) (3-4-1), connector chamber ontology (3-4) rear portion is machined with to be connected with tail-hood
The external screw thread (3-4-2) connect.Cable fixes rubber sleeve (3-5) using the good rubber material injection manufacture of elasticity, and cable is fixed
The center of rubber sleeve (3-5) is machined with detection cable entrance hole (3-5-1).Cable fixes the right side of rubber sleeve (3-5)
With connector chamber ontology (3-4) plane contact, right end processing is angled 20 degree of sphenoid, for with same shape
Cable wedge shape retainer ring (3-6) match.Cable wedge shape retainer ring (3-6) is manufactured using aluminum alloy materials, and inner surface is
Angle is 20 degree of wedged hole, and the sphenoid that size fixes rubber sleeve (3-5) with cable is consistent.
Referring to Fig. 9, female needle core component (c) includes female needle core insulator (3-7), female needle core (3-8), female needle core insulating top cover
(3-9) and female needle core fixing bolt ring (3-10).Wherein female needle core insulator (3-7) uses with female needle core insulating top cover (3-9)
High-strength insulating plastic manufacturing ensures the good electric isolution of receiver casing and core wire during signal receiver use.It is female
Needle core insulator (3-7) is processed into the ladder shaft shoulder (3-7-1) with the shaft shoulder, when female needle core component (c) is inserted into female needle core socket
During component jack (3-1-1), which can connect with the ladder interior wall construction (3-1-5) of rotary joint (3-1)
It touches, ensures the positioning and fixation of female needle core component (c).Female needle core insulating top cover (3-9) is mounted on female needle core insulator (3-7)
Female needle core insulator (3-7) is withstood on the right, withstands fixation by female needle core fixing bolt ring (3-10) thereafter.Female needle core insulator
The center of (3-7) and female needle core insulating top cover (3-9) is provided with the central through hole of a diameter of 3mm, for installing female needle core (3-8).
Female needle core (3-8) and female needle core fixing bolt ring (3-10) material are fine copper.Female needle core (3-8) is an internal diameter for 3mm, wall thickness
For the cylinder barrel shaped of 1mm, it is inserted into the central through hole of female needle core insulator (3-7) and female needle core insulating top cover (3-9).Female needle core
Fixing bolt ring (3-10) is the cylinder annulus that wall thickness is 2mm, is machined with needle core fixing bolt ring external screw thread (3- on its inner diameter
10-1), thread connection, and fixed female needle core insulator are formed for fixing internal thread (3-2-3) with female needle core fixing bolt ring
(3-7) and female needle core insulating top cover (3-9).Needle core fixing bolt ring external screw thread is machined on female needle core fixing bolt ring (3-10)
(3-10-1) and cable welding interface (3-10-2), cable welding interface (3-10-2) is for the shielding line with detection cable (5)
Mutually weld.
Referring to Figure 10, cable fixation kit (d) includes, and tail-hood (3-11) and cable buttock line fix rubber sleeve (3-12).Tail
(3-11) to be covered to manufacture using the metal material identical with detection bar (1), left end inwall processing has fixed internal thread (3-11-1),
It may be coupled on the external screw thread (3-4-2) at connector chamber ontology (3-4) rear portion, so as to fulfill cable fixation kit (d) with connecting
Connect the connection of device chamber component (b).Cable buttock line fixes rubber sleeve (3-12) using material identical with cable fixation rubber sleeve (3-5)
Rubber manufacture, centre is provided with cable entry port (3-12-1).
Referring to Figure 11, in patent of the present invention, the natural electric field detection signal receiver, it is characterised in that described
Signal receiving circuit (4), including magnetic bead (4-1), diode (4-2), capacitance (4-3), magnetic bead can be equivalent on circuit
The cascaded structure of resistance R and inductance L.This circuit is placed in connector chamber ontology (3-4), and the inside cavity is filled epoxy
Resin seal is fixed.
Detection bar (1) is connected into an overall signal and receives by detecting knock-off joint (2) and detection connector (3)
Device assembly, and according to lower link sequence：Male needle core (2-3) forms branch connection to female needle core component jack (3-2-1)
To the A nodes of signal receiving circuit (4), detection bar (1) arrives again to detection knock-off joint (2) and detection connector (3)
Female needle core fixing bolt ring fixes internal thread (3-2-3) and forms the B node that branch is connected to signal receiving circuit (4)；Inspection
The core wire for surveying cable (5) is connected to the C nodes of signal receiving circuit (4), and the shielding line of detection cable (5) is connected to letter
The D nodes of number receiving circuit (4) are serially connected with the A nodes and signal of signal receiving circuit (4) after diode is in parallel with capacitance
Between the C nodes of receiving circuit (4), magnetic bead is connected on the B node of signal receiving circuit (4) and signal receiving circuit (4
) D nodes between.
When detecting knock-off joint insertion detection connector, due to female needle core fixing bolt ring (3-10) and detection bar body
It is short-circuit, you can realize the A nodes of signal receiving circuit (4) and B node short circuit.
In patent of the present invention, single-core shielding line of the detection cable (5) for connection signal receiver and detecting instrument, cable
Core wire is used for transmission the natural electric field signal of signal receiver reception, and cable shield is in normal detection and the mould of detecting instrument
Intend ground connection, the transmission detection signal when natural electric field detection is detected with signal receiver connection status.
Claims (1)
1. a kind of natural electric field detection signal receiver is made of detection probe I and detection II two parts of connector, detection is visited
First I part includes detection bar (1) and detection knock-off joint (2), and II part of detection connector includes detection connector (3), signal connects
Receive circuit (4) and detection cable (5), natural electric field signal through be inserted into detection bar (1) reception of earth's surface and conduct to its screw thread
The detection knock-off joint (2) of connection, detection knock-off joint (2) are fastened by inserting mode and rotary chute Interference fit cylinder fixed pin
Mode with detection connector (3) connect and by natural electric field signal transduction extremely by magnetic bead (4-1), diode (4-2), capacitance
The signal receiving circuit (4) of (4-3) composition, the natural electric field signal after signal receiving circuit (4) are passed by detection cable (5)
Transport to signal pickup assembly；It is characterized in that：Detection bar (1) total length is 160mm, including front end turnery processing into 30 degree
The pinnacle structure (1-1) of the length 20mm at top angle and the cylindrical detection shaft (1-2) of rear end length 140mm, detect shaft
The internal thread hole (1-3) for connecting detection knock-off joint (2) is machined on (1-2) rear end face, is radially processed at face 5mm from the rear end
One trip bolt hole (1-4) for being used to screw in trip bolt (1-5)；The detection knock-off joint (2) is by detection bar terminal fitting
Outside the fastening that (2-1), fixed pin (2-2), public needle core (2-3), public needle core trip bolt (2-4) and internal thread hole (1-3) coordinate
Screw thread (2-5) and rubber ring (2-6) composition for being installed on detection bar terminal fitting (2-1) bottom, in detection bar terminal fitting (2-
1) the cylinder fixed pin (2-2) of 3 diameter 2mm, height 1mm are evenly distributed on outer diameter, for detecting connector (3)
During connection, the positioning runner (3- that 3 fixed pins (2-2) on knock-off joint (2) outer surface are directed at rotary joint (3-1) will be detected
Rectangular channel 1-2) is inserted into, and can be manually rotated detection knock-off joint (2), 3 fixed pins (2-2) are along arc positioning runner (3-1-2)
It is slidably inserted into tightening hole (3-1-3), realizes the positive connection of detection knock-off joint (2) and rotary joint (3-1), negative direction rotation
Knock-off joint (2) is detected, then 3 fixed pins (2-2) for detecting knock-off joint (2) are exited along arc positioning runner (3-1-2), are realized
The separation of knock-off joint (2) and rotary joint (3-1) is detected, public needle core (2-3) is inserted into the centre bore of detection bar terminal fitting (2-1)
It is interior and withstood and fixed by public needle core trip bolt (2-4)；Detect connector (3) including activity head assembly, connector chamber component,
Female needle core component, cable fixation kit；The activity head assembly includes rotary joint (3-1), female needle core socket (3-2) and opening
Annular spring leaf (3-3), female needle core jack assemblies jack (3-1-1) inner wall of rotary joint (3-1) is with 120 degree of angle interval
3 groups of positioning runners (3-1-2) and tightening hole (3-1-3) are uniformly distributed for connecting fixation, rotary joint with detection knock-off joint (2)
(3-1) has ladder interior wall construction (3-1-5), and one (3-1- of spring leaf fixed groove is machined in the stage casing of rotary joint (3-1)
4), female needle core socket (3-2) is fixed by female needle core component jack (3-2-1), spring leaf fixed groove two (3-2-2), female needle core
Bolt ring fixes internal thread (3-2-3) and fixed external screw thread (3-2-4) forms, and open annular spring leaf (3-3) is by a piece of elasticity
Metal spring washer is made, and cuts out an oblique grooving (3-3-1) in the middle, is plunged into spring leaf fixed groove one
In (3-1-4), you can be reliably linked together female needle core socket (3-2) with rotary joint (3-1), due to open annular bullet
Reed (3-3) can rotate in fixed groove so that female needle core socket (3-2) can be freely in rotary joint (3-1)
Rotation is convenient for the connection with detection knock-off joint (2) with detaching；The connector chamber component includes connector chamber ontology (3-4), electricity
Cable fixes rubber sleeve (3-5) and cable wedge shape retainer ring (3-6), and internal thread (3-4- is machined on connector chamber ontology (3-4)
1), cable, which fixes rubber sleeve (3-5) and the center of cable wedge shape retainer ring (3-6), detection cable entrance hole (3-5-1)；It is described
Female needle core component includes female needle core insulator (3-7), female needle core (3-8), female needle core insulating top cover (3-9) and female needle core and fixes spiral shell
Bolt ring (3-10), female needle core insulator (3-7) are processed into the ladder shaft shoulder (3-7-1) with the shaft shoulder, female needle core fixing bolt ring
Needle core fixing bolt ring external screw thread (3-10-1) and cable welding interface (3-10-2) are machined on (3-10), for working as detection bar
When connector is inserted into detection connector, since female needle core fixing bolt ring (3-10) and detection bar body are short-circuit, you can realize
The A nodes of signal receiving circuit (4) and B node short circuit, are detected for signal receiver connection status；The cable fixation kit
Rubber sleeve (3-12) is fixed including tail-hood (3-11), cable buttock line, tail-hood (3-11) inwall processing has fixed internal thread (3-11-
1), the center of cable buttock line fixation rubber sleeve (3-12) is machined with cable entry port (3-12-1).
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| CN201610482892.2A CN105911598B (en) | 2016-06-28 | 2016-06-28 | natural electric field detection signal receiver |
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| CN110645946B (en) * | 2019-11-05 | 2021-05-07 | 四川大学 | Portable large-diameter deep hole internal thread pitch diameter on-site measuring instrument and measuring method thereof |
| CN111335952B (en) * | 2020-04-09 | 2022-04-19 | 安徽恒源煤电股份有限公司 | Coal mine safety management monitoring early warning system and method thereof |
| CN114966864B (en) * | 2022-06-24 | 2024-03-08 | 山东省地质矿产勘查开发局第三地质大队(山东省第三地质矿产勘查院、山东省海洋地质勘查院) | Crystal graphite ore prospecting system in metamorphic rock area |
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