A multifunctional iron ore detection device for geological exploration

Abstract

The present invention discloses a multifunctional iron ore detection device for geological exploration, including a controllable source audio magnetotelluric detection component and a center loop TEN detection component, the center loop TEN detection component includes an outer coil and an inner coil, and the controllable source audio magnetotelluric detection component includes a plurality of receiving columns and a plurality of transmitting columns; the receiving columns and the transmitting columns are arranged at the corners of at least one of the outer coil and the inner coil to form a position-limiting support structure. The multifunctional iron ore detection device for geological exploration provided by the invention integrates two independent systems, the center loop TEN detection component and the controlled source audio magnetotelluric detection component, into one, which is convenient for carrying and deploying the two detection systems, and detects alternately by two detection methods, and detects successively without interfering with each other, and neutralizes the detected data, so as to more accurately detect the location of invisible sedimentary metamorphic iron ore formed by such complex geology.

Description

Technical Field

[0001] The invention relates to the technical field of geological exploration, and in particular to a multifunctional iron ore detection device for geological exploration. Background Art

[0002] The formation of invisible sedimentary metamorphic iron ore is mainly due to the special rock system structure formed by the intrusion of magmatic activities in different periods. For example, on the southern edge of the North China Plate, the rock system in this area is relatively complex due to the intrusion of Neoarchean basic-ultrabasic volcanic eruptions, Mesoproterozoic intermediate-basic volcanic eruptions and small-scale acidic magma in the Mesozoic. The folds are mainly developed in the Taihua Group strata, and the rock strata have undergone varying degrees of bending and deformation. This also makes the rock system contained in the iron ore in this area the Neoarchean Taihua Group, and the iron ore deposits are located in the Archean banded mixed rock group. The ore is a medium-grained, fine-grained metamorphic structure, a metasomatic residual structure, a banded, plate-like, striped and impregnated structure.

[0003] According to patent number CN201610847506.5, published (announced) date: 2016-12-21, a multifunctional iron ore detector for geological exploration is disclosed, including an exploration device, an X-ray source controller, an X-ray source generator and a magnetic sensor are arranged inside the exploration device, an X-ray sensing probe is fixedly installed on the right side of the exploration device, the exploration device is connected to the analysis device through a signal collector, an analyzer, a power supply and a controller are arranged inside the analysis device, a display screen and an electronic watch are fixedly installed on the surface of the analysis device, an alarm device is arranged on the top of the analysis device, the top of the signal collector is connected to a handle, lighting lamps are installed on both sides of the handle, a tool box is installed at the bottom of the signal collector, the signal collector is electrically connected to the controller through a wire, the controller is electrically connected to the analyzer and the alarm device through a wire respectively, and the analyzer is electrically connected to the display screen through a wire. The above device has a compact structure, a small size, is easy to carry, has multiple functions, and is suitable for universal promotion and use.

[0004] Affected by the rock structure, invisible sedimentary metamorphic iron ore has the following two characteristics: 1. High magnetic susceptibility. The maximum value of high-precision magnetic anomaly can reach 2000nT, which is 3-10 times higher than that of the surrounding rock. The magnetic field also shows the characteristics of high magnetic force; 2. Low resistivity. The average resistivity of the surrounding rock gneiss, diorite and pyroxenite is n*10 3 Ω·m~n*10 4 Ω·m, while the resistivity of iron ore is n*10 1 Ω·m~n*10 2 In summary, due to the high magnetic and low electrical properties of invisible sedimentary metamorphic iron ore, simple magnetic detection cannot distinguish them, resulting in the current situation that this type of iron ore is difficult to mine. Summary of the invention

[0005] The purpose of the present invention is to provide a multifunctional iron ore detection device for geological prospecting, which is used to solve the above problems.

[0006] In order to achieve the above-mentioned object, the present invention provides the following technical solutions: a multifunctional iron ore detection device for geological prospecting, comprising a controllable source audio magnetotelluric detection component and a center loop TEN detection component, wherein the center loop TEN detection component comprises an outer coil and an inner coil, and the controllable source audio magnetotelluric detection component comprises a plurality of receiving columns and a plurality of transmitting columns;

[0007] The receiving column and the transmitting column are arranged at a corner of at least one of the outer coil and the inner coil to form a position limiting support structure.

[0008] Preferably, the controllable source audio magnetotelluric detection assembly comprises four receiving columns and two transmitting columns;

[0009] The four receiving posts are respectively distributed along the same diagonal line of the outer coil and the inner coil;

[0010] The two emitting columns are symmetrically distributed in the inner coil and located on the diagonal line.

[0011] Preferably, the four receiving columns are respectively an Ex receiving column, a Hy receiving column, an Ey receiving column and an Hx receiving column, and the Hy receiving column is located between the Ex receiving column and the Ey receiving column.

[0012] Preferably, it also includes a line source TEN detection component, which is used to detect eddy currents induced by a primary pulse signal on underground conductors.

[0013] Preferably, the line source TEN detection component includes at least two receiving poles in the controllable source audio magnetotelluric detection component and an inner coil in the center loop TEN detection component, and the two receiving poles are distributed outside the inner coil.

[0014] Preferably, it further comprises two second connectors, two first connectors and two winding wires of a predetermined length, wherein:

[0015] The two second connectors and the plurality of receiving posts form a rectangular limiting support structure so that the winding wires are wound around to form an outer coil;

[0016] The two first connectors and the plurality of receiving posts form a rectangular limiting support structure so that the winding wire is wound around to form an inner coil.

[0017] Preferably, the two receiving posts on the outer coil and the end faces of the two second connectors are provided with storage grooves, and the two receiving posts on the inner coil and the two first connectors can be received in the storage grooves, and the receiving posts and the second connectors are stacked and snapped together to close the storage grooves thereon.

[0018] Preferably, the two receiving posts on the outer coil and the sides of the two second connectors are each provided with a plurality of second clips of a predetermined length, and a wire clip groove is formed between every two of the first clips, wherein:

[0019] The second clamping edge is clamped in the wire clamping groove so that the two groups of stacked receiving posts and the second connector are locked as a whole.

[0020] Preferably, a through slot connected to the storage slot is provided in the wire clamping slot, a receiving column is stored in the storage slot, and a plurality of side walls of the receiving column are provided with a first clamping ledge, and the first clamping ledge extends from the through slot into the wire clamping slot to clamp the second clamping ledge.

[0021] Preferably, the stacked receiving column and the second connector are both movably connected with a launching column, the multiple wire clamping grooves are threadedly distributed, the launching column is rollingly connected to the receiving column, and is used to drive the first clamping eave on the receiving column to rotate along the thread direction of the wire clamping groove to clamp the second clamping eave.

[0022] In the above technical scheme, a multifunctional iron ore detection device for geological exploration provided by the present invention has the following beneficial effects: in the scheme, the receiving column and the transmitting column on the controlled source audio magnetotelluric detection component are used as part of the corner support of the limit support for the outer coil and the inner coil, so that the two independent systems of the center loop TEN detection component and the controlled source audio magnetotelluric detection component are integrated into one, and the structural design is optimized, that is, it is convenient to carry and deploy the two detection systems, and the two detection methods are used alternately for detection. Under the premise of non-interference, detection is carried out successively, and the detection data is neutralized and processed, so as to more accurately detect the location of the invisible sedimentary metamorphic iron ore formed by this complex geology. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0024] Figure 1A schematic diagram of the structure of the controllable source audio magnetotelluric detection assembly, the center loop TEN detection assembly and the line source TEN detection assembly provided in an embodiment of the present invention;

[0025] Figure 2 A schematic structural diagram of a receiving column, a first connector, a second connector, and a transmitting column in an assembled state provided by an embodiment of the present invention;

[0026] Figure 3 The embodiment of the present invention provides Figure 2 Schematic diagram of the structure under explosion state;

[0027] Figure 4 A schematic diagram of the structure of an Ex receiving column and an Ey receiving column provided in an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of the structure of a second connector and a first connector provided in an embodiment of the present invention;

[0029] Figure 6 The embodiment of the present invention provides Figure 2 Schematic diagram of the cross-section structure in the state.

[0030] Description of reference numerals:

[0031] 10. Outer coil; 11. Inner coil; 20. Connecting part; 21. Grounding terminal; 30. Notch slot; 31. Limiting slot; 33. Storage slot; 40. First eaves; 41. Second eaves; 42. Wire slot; 43. Through slot; 5. Rubber eccentric roller; 100. Ex receiving column; 101. First connector; 102. Hy receiving column; 103. Ey receiving column; 104. Winding; 105. Second connector; 106. Hx receiving column; 107. A transmitting column; 108. B transmitting column. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0033] like Figure 1-6 As shown, a multifunctional iron ore detection device for geological prospecting includes a controllable source audio magnetotelluric detection component and a center loop TEN detection component, the center loop TEN detection component includes an outer coil 10 and an inner coil 11, and the controllable source audio magnetotelluric detection component includes a plurality of receiving columns and a plurality of transmitting columns;

[0034] The receiving column and the transmitting column are arranged at the corner of at least one of the outer coil 10 and the inner coil 11 to form a position-limiting support structure.

[0035] Specifically, in the above embodiment, the inner coil 11 is a transmitting coil (connected to the output end of the transmitter), and the outer coil 10 is a receiving coil (connected to the input end of the receiver). The inner coil 11 excites a pulse magnetic field underground. The conductive medium underground is induced to produce eddy currents under the excitation of the primary pulse, and a secondary transient magnetic field is formed in the space. The primary pulse magnetic field collapses as the pulse current is turned off. The outer coil 10 is used to observe the weakening of the secondary transient magnetic field, and the electrical parameters, structural composition and volume morphology are judged by observing the speed of the weakening.

[0036] Furthermore, in the above embodiment, there are at most two transmitting columns, namely, the A transmitting column 107 and the B transmitting column 108, and at least two receiving columns, namely, the Ex receiving column 100 and the Ey receiving column 103. The A transmitting column 107 and the B transmitting column 108 are respectively connected to the output end of the transmitter, while the Ex receiving column 100 and the Ey receiving column 103 are connected to the input end of the receiver. It should be noted that the spacing between the Ex receiving column 100 and the Ey receiving column 103 must be greater than that between the A transmitting column 107 and the B transmitting column 108. The A transmitting column 107 and the B transmitting column 108 project the electromagnetic wave vertically to the underground plane. Through the Ex receiving column 100 and the Ey receiving column 103, the mutually orthogonal electromagnetic field components Ex and Hy can be directly observed on the bottom surface. By measuring the mutually orthogonal electric field and magnetic field components, the Carnia resistivity value of the medium is determined (common knowledge, not elaborated in detail), so as to judge the rock formation structural characteristics of the mineral, the depth of the mineral and the range of the mineral.

[0037] Furthermore, the Ex receiving column 100 and the Ey receiving column 103 and the A transmitting column 107 and the B transmitting column 108 in the embodiment can serve as limiting supports for at least one of the outer coil 10 and the inner coil 11, that is, the Ex receiving column 100 and the Ey receiving column 103 are divided into two corners located at the limiting support of the outer coil 10, while the A transmitting column 107 and the B transmitting column 108 can be located at the two corners of the limiting support of the inner coil 11.

[0038] Furthermore, the A transmitting column 107, the B transmitting column 108, the Ex receiving column 100 and the Ey receiving column 103 in the embodiment are divided into a connecting part 20 and a grounding end 21. The connecting part 20 is in contact with the outer coil 10 and the inner coil 11, and corresponding magnetic isolation materials are arranged in the connecting part 20 to avoid the residual magnetism of the outer coil 10 and the inner coil 11 from affecting the radiation of the A transmitting column 107 and the B transmitting column 108 and the reception of the Ex receiving column 100 and the Ey receiving column 103, and the grounding end 21 is buried underground.

[0039] In the above embodiment, the receiving column and the transmitting column on the controlled source audio magnetotelluric detection component are used as a part of the corner support of the limit support set up by the outer coil 10 and the inner coil 11, so that the two independent systems of the center loop TEN detection component and the controlled source audio magnetotelluric detection component are integrated into one, and the structural design is optimized, that is, it is convenient to carry and deploy the two detection systems. By alternately detecting by two detection methods, detection is carried out successively without interfering with each other, and the detection data is neutralized and processed, so as to more accurately detect the location of the invisible sedimentary metamorphic iron ore formed by this complex geological formation.

[0040] As another embodiment further provided by the present invention, according to Figure 1 It can be seen that the controllable source audio magnetotelluric detection assembly includes four receiving columns and two transmitting columns, and according to Figure 1 It can be seen that the four receiving columns in the embodiment are respectively distributed along the same diagonal line of the outer coil 10 and the inner coil 11, and the two transmitting columns are symmetrically distributed in the inner coil 11 and are located on the diagonal line. Specifically, the transmitting column is located in the inner coil 11. The design is to avoid interference when the transmitting column transmits signals or the inner coil 11 transmits signals, because the initial signal strength of the actively transmitted signal is relatively large. If the transmitting column is used as a part of the limit support of the inner coil 11, it will undoubtedly affect the inner coil 11.

[0041] Further, according to Figure 1 It can be seen that in the above embodiment, the four receiving columns are Ex receiving column 100, Hy receiving column 102, Ey receiving column 103 and Hx receiving column 106, and Hy receiving column 102 is located between Ex receiving column 100 and Ey receiving column 103. Specifically, A transmitting column 107 and B transmitting column 108 vertically project electromagnetic waves to the underground plane, and the mutually orthogonal electromagnetic field components Ex, Hy, Ey and Hx can be directly observed on the bottom surface through Ex receiving column 100, Hy receiving column 102, Ey receiving column 103 and Hx receiving column 106. By measuring the mutually orthogonal electric field and magnetic field components, the Carnia resistivity value of the medium is determined. The detection data of the second detection mechanism, the third detection mechanism and the first detection mechanism are compared to determine the rock formation structure characteristics of the mineral, the depth of the mineral and the range of the mineral.

[0042] The formula is as follows:

[0043]

[0044] Furthermore, the A emitting column 107 and the B emitting column 108 in the embodiment are specifically a power supply dipole A and a power supply dipole B, the maximum power supply currents of the two are 16A and 20A respectively, and the operating frequency is the same as 9600-1Hz, with a total of 41 frequency points.

[0045] As another embodiment further provided by the present invention, a line source TEN detection assembly is also included, which is used to detect eddy currents induced by a primary pulse signal on an underground conductor. Specifically, the line source TEN detection assembly includes at least two receiving columns in a controllable source audio magnetotelluric detection assembly and an inner coil 11 in a center loop TEN detection assembly, and the two receiving columns are distributed outside the inner coil 11. That is, the inner coil 11 excites a primary pulse magnetic field underground, and during the interval of the primary pulse magnetic field, the Ex receiving column 100 and the Hx receiving column 106 are used to observe the secondary transient magnetic field eddy currents, thereby judging the scale, occurrence and electrical properties of the conductor.

[0046] It should be noted that since the line source TEN detection assembly and the center loop TEN detection assembly share the same inner coil 11, the difference is that the inner coil 11 emits a pulse, and the underground conductive medium is induced to produce eddy currents under the excitation of the pulse, and a secondary transient magnetic field is formed in the space, while the Ex receiving column 100 and the Hx receiving column 106 are used to receive the electromagnetic signal of the eddy current. When the inner coil 11 is turned off, the secondary transient magnetic field weakens and decreases, and the outer coil 10 is used to observe the weakening and decreasing of the secondary transient magnetic field. Among them, the transmission frequency is 5Hz, the latest time channel allowed is 37.7ms, and the transmission current is 15A.

[0047] In summary, the device provided in the above embodiment includes a line source TEN detection component, a center loop TEN detection component and a controllable source audio frequency magnetotelluric detection component, three systems in one. First, a pulse is emitted by the inner coil 11, and the underground conductive medium is induced to produce eddy currents under the excitation of the pulse, and the line source TEN detection component detects the eddy current changes. After collecting data, the power supply of the inner coil 11 is turned off, and the secondary transient magnetic field decays and decreases, while the outer coil 10 observes the decay of the secondary transient magnetic field and then collects the corresponding data. After completing the data collection of the above-mentioned line source TEN detection component and the center loop TEN detection component (at intervals of 0.5 hours), the A transmitting column 107 and the B transmitting column 108 are used to vertically project the electromagnetic waves to the underground plane, and the mutually orthogonal electromagnetic field components Ex, Hy, Ey and Hx can be directly observed on the bottom surface through the Ex receiving column 100, the Hy receiving column 102, the Ey receiving column 103 and the Hx receiving column 106. By measuring the mutually orthogonal electric field and magnetic field components, the Carnia resistivity value of the medium is determined. The data obtained by the above three detection systems are summarized and calculated to obtain the location of the iron ore.

[0048] As another embodiment further provided by the present invention, the center loop TEN detection assembly further includes two second connectors 105, two first connectors 101 and two winding wires 104 of a predetermined length, wherein:

[0049] The two second connectors 105 and the plurality of receiving posts form a rectangular limiting support structure so that the winding wire 104 is wound around to form an outer coil 10; Figure 1 As shown, the two second connectors 105 are distributed along a diagonal line, while the Ex receiving column 100 and the Hx receiving column 106 are distributed along another diagonal line to form a rectangular limiting support, and the winding 104 is wrapped around the outer wall of the rectangular limiting support for a predetermined number of turns (stacked and wrapped in sequence upward in the vertical direction), and then the two ends of the winding 104 are connected to the wiring ports of the two second connectors 105.

[0050] The two first connectors 101 and the plurality of receiving posts form a rectangular limiting support structure so that the winding wire 104 can be wound to form the inner coil 11. Figure 1 As shown, the two first connectors 101 are distributed along a diagonal line, while the Hy receiving column 102 and the Ey receiving column 103 are distributed along another diagonal line to form a rectangular limiting support, and the winding 104 is wrapped around the outer wall of the rectangular limiting support for a predetermined number of turns (stacked and wrapped in sequence upward in the vertical direction), and then the two ends of the winding 104 are connected to the wiring ports of the two first connectors 101.

[0051] As another embodiment further provided by the present invention, the two receiving posts on the outer coil 10 and the end faces of the two second connectors 105 are provided with storage grooves 33, and the two receiving posts on the inner coil 11 and the two first connectors 101 can be received in the storage grooves 33, and the receiving posts and the second connectors 105 are stacked and snapped together to close the storage grooves 33 thereon. Specifically, the two receiving posts on the outer coil 10 in the above embodiment, i.e., the Ex receiving post 100 and the Hx receiving post 106, are provided with storage grooves 33 (rounded rectangular structures) on the connecting parts 20 of the Ex receiving post 100 and the Hx receiving post 106 and the two second connectors 105, and the size of the storage grooves 33 is consistent with the size of the Hy receiving post 102, the Ey receiving post 103 and the two first connectors 101. When storing, the Hy receiving column 102, the Ey receiving column 103 and the two first connectors 101 need to be inserted into the storage slot 33 respectively, and then the Hx receiving column 106 is turned over so that the end surface of the connecting portion 20 coincides with the end surface of the second connector 105, thereby blocking the storage slot 33. The storage of the Hy receiving column 102, the Ey receiving column 103 and the two first connectors 101 can be completed, and finally they can be tied and fixed with the help of external ropes.

[0052] As another embodiment further provided by the present invention, the two receiving posts on the outer coil 10 and the sides of the two second connectors 105 are provided with a plurality of second clamping ridges 41 of a predetermined length, and a wire clamping groove 42 is formed between each two first clamping ridges 40, wherein: the second clamping ridge 41 is clamped into the wire clamping groove 42 so that the two groups of stacked receiving posts are locked as one with the second connector 105. Specifically, in the above embodiment, the two receiving posts on the outer coil 10 are Ex receiving post 100 and Hx receiving post 106. The connecting portion 20 of the Ex receiving column 100, the connecting portion 20 of the Hx receiving column 106 and the side walls of the two second connectors 105 are provided with raised second clips 41, and the number of the second clips 41 is multiple, and they are arranged from one end of the connecting portion 20 opposite to the grounding end 21 to the end close to the grounding end 21, and a predetermined spacing is maintained between each two second clips 41, thereby forming the wire clip groove 42 mentioned in the embodiment, and the wire clip groove 42 is provided for the purpose of facilitating the winding of the wire 104 on the receiving column in the vertical direction. Further, the Hy receiving column 102, the Ey receiving column 103 and the two first connectors 101 are respectively inserted into the storage slot 33, and then the receiving column is flipped so that the end face of the connecting portion 20 overlaps with the end face of the second connector 105, respectively forming a stack a formed by the overlap of the Hx receiving column 106 and the second connector 105, and a stack b formed by the overlap of the Ex receiving column 100 and the second connector 105. Then, the second clamping flange 41 on stack a is clamped into the wire clamping groove 42 on stack b, or the second clamping flange 41 on stack b is clamped into the wire clamping groove 42 on stack a, and a staggered clamping method is used to make part of the second clamping flange 41 of the Hx receiving column 106 or the Ex receiving column 100 clamped into the wire clamping groove 42 on the second connector 105, and then rotated. Since the receiving column and the connector are both circular, the second clamping flange 41 will be clamped in the wire clamping groove 42 to be fixed after rotation due to shape restrictions.

[0053] As another embodiment further provided by the present invention, a through slot 43 connected to the storage slot 33 is provided in the wire clamping slot 42, and a receiving column is stored in the storage slot 33, and the side wall of the receiving column is provided with a plurality of first clamping eaves 40, and the first clamping eaves 40 extend from the through slot 43 to the wire clamping slot 42 to clamp the second clamping eaves 41. Specifically, in the above embodiment, the receiving column stored in the storage slot 33 is the Hy receiving column 102 and the Ey receiving column 103. In the specific implementation process, the Hy receiving column 102, the Ey receiving column 103 and the two first connectors 101 are respectively inserted into the storage slot 33, and then the receiving column is turned over so that the end face of the connecting part 20 overlaps with the end face of the second connector 105, respectively forming a stack a formed by the overlap of the Hx receiving column 106 and the second connector 105, and a stack b formed by the overlap of the Ex receiving column 100 and the second connector 105. Then, part of the second card edge 41 of the Hx receiving column 106 or the Ex receiving column 100 is extended into the wire clamping groove 42 on the second connector 105, pushing the Hy receiving column 102, the Ey receiving column 103 and the two first connectors 101 in the storage groove 33, so that the first card edge 40 thereon extends from the through groove 43 to the wire clamping groove 42, and the second card edge 41 is pinned by extrusion.

[0054] It should be noted that the method for driving the Hy receiving column 102, the Ey receiving column 103 and the two first connectors 101 in the storage slot 33 to move is to open holes on the Hx receiving column 106, the Ex receiving column 100 and the second connector 105, and use external rods to push them to move; or, the Hx receiving column 106, the Ex receiving column 100 and the second connector 105 have an axially movable threaded rod, and the threaded rod is driven to rotate to drive the first clamping edge 40 to enter or exit the wire clamping slot 42.

[0055] As a further optimal embodiment of the present invention, the stacked receiving column and the second connector 105 are both movably connected with a launch column, and a plurality of wire clamping grooves 42 are threadedly distributed. The launch column is rollingly connected with the receiving column and is used to drive the first clamping eave 40 on the receiving column to rotate along the thread direction of the wire clamping groove 42 to clamp the second clamping eave 41. Specifically, the launch column is A launch column 107 and B launch column 108. According to Figure 3 and Figure 4 It can be seen that the second clamping ledge 41 is provided on the side walls of the Hx receiving column 106, the Ex receiving column 100 and the second connector 105, and the first clamping ledge 40 is provided on the side walls of the Hy receiving column 102, the Ey receiving column 103 and the two first connectors 101, and a wire clamping groove 42 is formed between every two first clamping ledges 40 and every two second clamping ledges 41. Figure 4 It can be known that the wire clamping groove 42 in the embodiment is specifically in a threaded shape, and the through groove 43 , the first clamping edge 40 and the second clamping edge 41 are all in the same shape as the wire clamping groove 42 .

[0056] Insert the Hy receiving column 102, the Ey receiving column 103 and the two first connectors 101 into the storage slot 33 respectively, and then flip the receiving column so that the end face of the connecting portion 20 overlaps with the end face of the second connector 105, forming a stack a of the Hx receiving column 106 and the second connector 105 overlap, and a stack b of the Ex receiving column 100 and the second connector 105 overlap. Figure 3 It can be seen that a notch slot 30 is provided on the connection portion 20 of the Hx receiving column 106 and the Ex receiving column 100, and a limit slot 31 is provided on the second connector 105. The limit slot 31 and the notch slot 30 have the same radius and are relatively distributed with the second card edge 41. When the rubber eccentric roller 5 that is rotatably arranged in the Hx receiving column 106, the Ex receiving column 100 and the second connector 105 moves the A transmitting column 107 and the B transmitting column 108 from the notch slot 30 and seats in the limit slot 31, the rubber eccentric roller 5 is pushed by the A transmitting column 107 and the B transmitting column 108 to move the Hy receiving column 102, the Ey receiving column 103 and the two first connectors 101, so that the first card edge 40 extends from the through slot 43 to the wire slot 42, and then the A transmitting column 107 and the B transmitting column 108 are rotated. 7 and B emitting columns 108, Hy receiving columns 102, Ey receiving columns 103 and two first connectors 101 rotate under the drive of the rubber eccentric roller shaft 5, which makes the first clamping eaves 40 rotate along the through groove 43, driving the first clamping eaves 40 to move upward along the thread direction, so that the first clamping eaves 40 and the second clamping eaves 41 are both clamped upward, and at the same time, the A emitting column 107 and the B emitting column 108 cannot drive the rubber eccentric roller shaft 5 to continue rotating, and the emitting column, the rubber eccentric roller shaft 5 and the receiving column will also form a relatively stable clamping state. When there is no external force to rotate the A emitting column 107 and the B emitting column 108 to drive the first clamping eaves 40 to move downward along the thread direction, the three will not be loose (common knowledge, no detailed explanation).

[0057] It should be noted that the rubber eccentric roller 5 in the embodiment is a circular ring structure, and the radius of the rotating shaft is smaller than the radius of the central circular hole of the rubber eccentric roller 5. Therefore, when the A emission column 107 is inserted, it will push the rubber eccentric roller 5 to move until its inner wall rolls and contacts the rotating shaft, thereby achieving the technical purpose of the embodiment.

[0058] In addition, in this embodiment, the outer walls of the first clamping edge 40 and the second clamping edge 41 are both covered with a rubber coat of a certain thickness, the purpose of which is to increase the friction after clamping.

[0059] Furthermore, in the embodiment, when the device is assembled as Figure 2In the unused state, most of the A emitting column 107 and the B emitting column 108 are exposed outside the second connector 105, thereby forming a winding area to facilitate the winding of the winding wire 104, thereby greatly facilitating the transportation of the device.

[0060] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A multifunctional iron ore detection device for geological exploration, characterized in that: It comprises a controllable source audio frequency magnetotelluric detection component and a center loop TEN detection component, wherein the center loop TEN detection component comprises an outer coil (10) and an inner coil (11), and the controllable source audio frequency magnetotelluric detection component comprises a plurality of receiving columns and a plurality of transmitting columns; The receiving column and the transmitting column are arranged at a corner of at least one of the outer coil (10) and the inner coil (11) to form a position-limiting support structure; The controllable source audio frequency magnetotelluric detection assembly includes four receiving columns and two transmitting columns; The four receiving posts are respectively distributed along the same diagonal line of the outer coil (10) and the inner coil (11); The two emitting columns are symmetrically distributed in the inner coil (11) and located on the diagonal line; The four receiving columns are respectively an Ex receiving column (100), a Hy receiving column (102), an Ey receiving column (103) and an Hx receiving column (106), and the Hy receiving column (102) is located between the Ex receiving column (100) and the Ey receiving column (103); Also included is a line source TEN detection assembly, which is used to detect eddy currents induced by a primary pulse signal on an underground conductor; The line source TEN detection component comprises at least two receiving columns in a controllable source audio frequency magnetotelluric detection component and an inner coil (11) in a center loop line TEN detection component, wherein the two receiving columns are distributed outside the inner coil (11).

2. A multifunctional iron ore detection device for geological prospecting according to claim 1, characterized in that: It also includes two second connectors (105), two first connectors (101) and two winding wires (104) of a predetermined length, wherein: The two second connectors (105) and the plurality of receiving posts form a rectangular limiting support structure so that the winding wire (104) is wound to form an outer coil (10); The two first connectors (101) and the plurality of receiving posts form a rectangular limiting support structure so that the winding wire (104) is wound to form an inner coil (11).

3. A multifunctional iron ore detection device for geological prospecting according to claim 2, characterized in that: The two receiving posts on the outer coil (10) and the end surfaces of the two second connectors (105) are both provided with storage grooves (33); the two receiving posts on the inner coil (11) and the two first connectors (101) can be received in the storage grooves (33); the receiving posts and the second connectors (105) are stacked and snap-connected so that the storage grooves (33) thereon are closed.

4. A multifunctional iron ore detection device for geological prospecting according to claim 3, characterized in that: The two receiving posts on the outer coil (10) and the sides of the two second connectors (105) are each provided with a plurality of second clipping edges (41) of a predetermined length, the side wall of the receiving post is provided with a plurality of first clipping edges (40), and a wire clipping groove (42) is formed between every two of the first clipping edges (40), wherein: The second clamping flange (41) is clamped in the wire clamping groove (42) so that the two groups of stacked receiving posts and the second connector (105) are locked together.

5. A multifunctional iron ore detection device for geological prospecting according to claim 4, characterized in that: A through slot (43) connected to the storage slot (33) is provided in the wire clamping slot (42); a receiving column is stored in the storage slot (33); a plurality of first clamping ridges (40) are provided on the side wall of the receiving column; the first clamping ridges (40) extend from the through slot (43) into the wire clamping slot (42) to clamp the second clamping ridges (41).

6. A multifunctional iron ore detection device for geological prospecting according to claim 4, characterized in that: The stacked receiving column and the second connector (105) are both movably connected with a transmitting column, and the plurality of wire clamping grooves (42) are distributed in a threaded manner. The transmitting column is rollingly connected to the receiving column and is used to drive the first clamping flange (40) on the receiving column to rotate along the thread direction of the wire clamping groove (42) to clamp the second clamping flange (41).

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