A low-power smart current sensor

Abstract

This invention discloses a low-power intelligent current sensor, including a base and a dustproof propulsion device. The dustproof propulsion device, when the opening and closing plate inside the dustproof assembly is closed, reduces the opening in the middle of the turntable and fixed plate, sealing the detection through-hole for dust protection. This prevents external dust from entering the detection through-hole when no detection activity is being performed, thus avoiding impact on the accuracy of subsequent wire detection. Simultaneously, during wire detection, the opening and closing plate supports the wire for centered insertion. Furthermore, the wire's insertion into the propulsion assembly, combined with the opposing transmission effect of the upper and lower conveyor belts, enables automatic wire propulsion detection. The spacing between the upper and lower conveyor belts can be flexibly adjusted to expand its application range and achieve stable, anti-slip propulsion during the process. Thus, the current sensor achieves the advantages of dustproof protection, centered support detection, and automatic propulsion detection.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of current sensors, in particular to a low-power intelligent current sensor. BACKGROUND

[0002] A current sensor is a detection device that can sense the information of a measured current and convert the sensed information into an electrical signal or other required information output in a certain rule to meet the requirements of information transmission, processing, storage, display, recording and control, and the like. A closed-loop current sensor is one of the current sensors and has many advantages such as short response time and high working frequency.

[0003] For example, the application number CN202123316916.2 is an open type low-power current sensor, which comprises a bottom plate and a sensor lower part, the upper side of the bottom plate is fixedly connected with the sensor lower part, and the upper side of the sensor lower part is provided with a fixing device. The open type low-power current sensor is provided with a sensor upper part, a concave plate, a baffle, a horizontal plate and a first spring, and when the electric wire enters between the sensor upper part and the sensor lower part, the baffle can tightly press the horizontal plate through the elastic performance of the first spring, so that the opening of the device is closed, and vice versa, the electric wire can be easily taken out. The arc-shaped plate, the gasket, the vertical rod, the stop block and the cylinder are cooperated with each other, when the electric wire moves between the two arc-shaped plates, the arc-shaped plate can tightly press the electric wire through the elastic performance of the second spring, so that the electric wire is more stable, and the use effect of the device is improved.

[0004] For example: application number CN202411388372.6, a kind of magnetic flux gate current sensor and its using method, including base and magnetic flux gate sensor, magnetic flux gate sensor is installed at the top of base, the inner chamber of magnetic flux gate sensor is filled with argon, the front and sidewall top of magnetic flux gate sensor are equipped with positioning mechanism and sealing monitoring mechanism respectively, the invention is driven by knob to make worm rotate, under the cooperation of worm and worm gear, the first rotating disc rotates clockwise, the guide groove extrudes the pin towards the inside, the slider moves towards the inside, the roller is clamped and limited to the conductor, by rotating the contact of fastening nut and base, the worm can be braked, therefore, the conductor is limited, so that the conductor is always in the center of magnetic flux gate sensor, reduce the magnetic field distortion;Reach the purpose of magnetic flux gate sealing monitoring, good heat dissipation effect, prevent the response ability of magnetic flux gate sensor to magnetic field change, ensure the sensitivity, avoid the failure of magnetic flux gate sensor when working in extreme environment, high reliability.The above-mentioned device and the current sensor in the prior art can realize the resistance of the wire to the limit position, ensure that the wire is stably placed in the upper end of the current sensor, and carry out detection activity, but it still has some deficiencies, that is, the upper end opening of the current sensor is directly exposed to the outside, and dust is easily attached to the opening inside when the detection activity is not carried out, and the attachment of dust will affect the subsequent detection accuracy, at the same time, when placing the wire, the current sensor is generally placed manually, and the wire detection position is adjusted manually, which reduces the intelligence of the current sensor and cannot automatically promote the detection of the wire according to the demand. SUMMARY

[0005] The purpose of the present application is to provide a low-power intelligent current sensor to solve the problems raised in the background art.

[0006] In order to achieve the above-mentioned purpose, the present application adopts the following technical scheme: a low-power intelligent current sensor, comprising a base, a current sensor body is arranged on the upper end of the base, a wiring terminal is connected to the front side of the lower end of the current sensor body, a detection hole is formed in the middle of the upper end of the current sensor body, and a dustproof pushing device is arranged outside the current sensor body, the dustproof pushing device comprises a connecting seat connected to the upper end of the current sensor body, a screw rod rotatingly connected to the inside of the connecting seat, a knob connected to the right side of the screw rod, a moving block threadedly connected to the outside of the screw rod, a connecting rod connected to the front and rear sides of the moving block, a swing plate connected to the outer end of the connecting rod, a dustproof assembly connected to the lower end of the swing plate, a connecting cylinder connected to the front and rear sides of the upper end of the current sensor body and connected to the outside of the dustproof assembly, and a pushing assembly arranged in the inside of one connecting cylinder.

[0007] Preferably, the dustproof assembly comprises a rotating disc abutting against the lower end of the swing plate and being rotatably connected with the inside of the connecting cylinder, a first guide groove being formed in the inside of the rotating disc, a connecting shaft being inserted into the inside of the first guide groove, an opening and closing plate abutting against the outside of the connecting shaft, a connecting strip being fixed to the outside of the opening and closing plate, a fixing disc being fastened to the inside of the connecting cylinder and being connected with one side of the connecting strip, and a second guide groove being formed in the inside of the fixing disc and being connected with the outside of the connecting strip.

[0008] Preferably, the advancing assembly comprises a connecting shell being fastened to the inside of one side of the connecting cylinder, wire holes being formed in the two sides of the middle part of the connecting shell, an installation shell being built-in the inside of the connecting shell, a first motor being installed on the upper end of the installation shell, an adjusting rod abutting against the lower end of the first motor, adjusting blocks being threadedly abutting against the two sides of the outer end of the adjusting rod, a tension rod being inserted into the middle part of the adjusting blocks, a transmission belt being connected with the outside of the tension rod, transmission wheels abutting against the two sides of the transmission belt, a second motor being connected with the outer end of one side of the transmission wheel, a cylinder being installed in the inside of the installation shell, an abutting plate abutting against the telescopic end of the cylinder, a pressing block being installed in the middle part of the abutting plate, and pressing wheels being installed on the two sides of the abutting plate.

[0009] Preferably, circular openings are formed in the middle parts of the rotating disc and the fixing disc, and the openings formed in the middle parts of the rotating disc and the fixing disc are on the same horizontal line with the detection through hole.

[0010] Preferably, the first guide grooves are circumferentially equidistantly installed and formed in the inside of the rotating disc, and the first guide grooves are semi-arc groove-shaped.

[0011] Preferably, the opening and closing plates are circumferentially equidistantly distributed between the rotating disc and the fixing disc, and the side edges of the adjacent opening and closing plates on each side are smoothly polished without barbs.

[0012] Preferably, the second guide grooves are circumferentially equidistantly formed on one side of the fixing disc relative to the opening and closing plate, and the second guide grooves are entirely inclined linear groove-shaped.

[0013] Preferably, the adjusting rod is vertically rotatably connected with the middle part of the side edge of the installation shell, and outer threads in opposite states are formed in the outer parts of the upper and lower ends of the adjusting rod.

[0014] Preferably, the adjusting blocks, the tension rod, the transmission belt, the transmission wheel, the second motor, the cylinder, the abutting plate, the pressing block and the pressing wheel are all symmetrically arranged in the inside of the installation shell, and there is a spacing between the upper and lower transmission belts.

[0015] Preferably, the length of the tension rod is matched with the width of the transmission belt, and a limiting end is integrally installed on the outer end of the tension rod.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] The dustproof propulsion device is provided, that is, when the opening and closing plates arranged in the dustproof assembly are in the closed state, the middle opening of the fixed plate can be reduced, the detection hole is plugged and dustproof protection is realized, so that when no detection activity is performed, external dust cannot enter the inside of the detection hole, and the subsequent wire detection accuracy is not affected. At the same time, when the wire is detected, the opening and closing plates can be supported and centered to pass in, and when the wire passes into the inside of the propulsion assembly, the automatic propulsion detection of the wire can be realized by cooperating with the abutting transmission effect of the upper and lower transmission belts, and the abutting propulsion distance between the upper and lower transmission belts can be flexibly adjusted to improve the use range, and stable anti-skid propulsion cooperation is achieved during the propulsion process. In this way, the dustproof protection, centering support detection and automatic propulsion detection of the current sensor can be realized.

[0018] The dustproof assembly, that is, the rotating plate, is driven by the swing plate, so that the connecting shaft abutting the first guide groove arranged in the inside is moved, so that the rotation and expansion of the opening and closing plates are realized. When the opening and closing plates are expanded, the plugging and dustproof protection effect of the detection hole is conveniently removed, so that the wire can be conveniently detected. At the same time, by cooperating with the abutting effect of the connecting strip arranged on one side of the opening and closing plate and the second guide groove arranged in the inside of the fixed plate, the opening and closing stability of the opening and closing plates can be assisted and strengthened, and when the wire is detected, the opening and closing plates can be closed to center the wire, so as to ensure the subsequent detection accuracy.

[0019] The setting of the propulsion assembly, that is, when the wire contacts the transmission belts arranged on the upper and lower sides of the mounting shell, the automatic propulsion cooperation can be realized by cooperating with the opposite transmission effect of the upper and lower transmission belts, so as to flexibly adjust the wire detection position without manual adjustment. The setting of the adjusting rod, the adjusting block, the tensioning rod, the cylinder, the abutting plate, the pressing block and the pressing wheel, that is, when the adjusting rod rotates, the vertical relative or opposite movement of the upper and lower abutting adjusting blocks can be realized, so that the tensioning rod abutting the outer ends of the two adjusting blocks can flexibly adjust the tensioning degree of the transmission belt abutting the outer end, so that the transmission belt is in a tight transmission state to avoid slipping or release the tensioning effect of the upper and lower transmission belts. The abutting plate is pushed by the cylinder, so that the pressing block and the pressing wheel arranged on the outer end can extrude the other side of the transmission belt, so that the upper and lower transmission belts can be flexibly adjusted in distance to meet the automatic propulsion transmission demand of wires of different sizes. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the application;

[0021] Figure 2 It is a main structure schematic diagram of the current sensor of the application;

[0022] Figure 3 It is a structural schematic diagram of the dustproof propulsion device of the application;

[0023] Figure 4 This is a partial structural diagram of the dustproof propulsion device of the present invention;

[0024] Figure 5 This is a schematic diagram of the dustproof component structure of the present invention;

[0025] Figure 6 This is a schematic diagram of the disassembled structure of the dustproof component of the present invention;

[0026] Figure 7 This is a side view of the disassembled structure of the dustproof component of the present invention;

[0027] Figure 8 This is a front view schematic diagram of the swing structure of the dustproof component of the present invention;

[0028] Figure 9 This is a schematic diagram of the internal structure of the propulsion component of the present invention from the right side view;

[0029] Figure 10 This is a schematic diagram of the internal structure of the mounting housing of the present invention from the right side.

[0030] Figure 11 For the present invention Figure 10 Enlarged structural diagram at point A in the middle. In the diagram: Base-1, Current sensor body-2, Wiring terminal-3, Detection through hole-4, Dustproof propulsion device-5, Connecting seat-51, Screw-52, Knob-53, Moving block-54, Connecting rod-55, Swing plate-56, Dustproof component-57, Turntable-571, First guide groove-572, Connecting shaft-573, Opening and closing plate-574, Connecting strip-575, Fixing plate-576, Second guide groove-577, Connecting cylinder-58, Propulsion component-59, Connecting shell-591, Through hole-592, Mounting shell-593, First motor-594, Adjusting rod-595, Adjusting block-596, Tensioning rod-597, Transmission belt-598, Transmission wheel-599, Second motor-5910, Cylinder-5911, Connecting plate-5912, Pressure block-5913, Pressure roller-5914. Detailed Implementation

[0031] To further explain the technical solution of the present invention, a detailed description is provided below through specific embodiments.

[0032] Please see Figures 1-2 The present invention provides a low-power intelligent current sensor, including a base 1, a current sensor body 2 disposed on the upper end of the base 1, a wiring terminal 3 connected to the front side of the lower end of the current sensor body 2, a detection through hole 4 opened in the middle of the upper end of the current sensor body 2, and a dustproof propulsion device 5 disposed on the outside of the current sensor body 2.

[0033] Specifically, when it is necessary to perform wire testing, the terminal 3 provided on the lower front side of the current sensor body 2 can be connected to the external wiring to realize the power supply of the current sensor body 2 and the wire connection of the external device. After the wiring is completed, the wire can be inserted into the detection through hole 4 opened in the middle of the upper end of the current sensor body 2 to realize the rapid detection and acquisition of the internal current information of the wire.

[0034] Please see Figures 3-8 The dustproof propulsion device 5 in this embodiment includes a connecting seat 51 connected to the upper end of the current sensor body 2, a screw 52 rotatably connected inside the connecting seat 51 for adjusting the transmission, a knob 53 connected to the right side of the screw 52, ​​a moving block 54 threadedly connected to the outside of the screw 52 and slidably connected to both sides of the upper end of the connecting seat 51, connecting rods 55 symmetrically inserted into the front and rear sides of the moving block 54, a swing plate 56 connected to the outer ends of the connecting rods 55 on both sides, and the upper end of the swing plate 56 has an integrally formed vertical groove, and the lower end of the swing plate 56 extends into the connecting cylinder 58, a dustproof component 57 connected to the lower end of the swing plate 56 to realize convenient opening and closing of the clamping wire and dustproof protection, a connecting cylinder 58 connected to the front and rear sides of the upper end of the current sensor body 2 and connected to the outside of the dustproof component 57, and a propulsion component 59 located inside the front connecting cylinder 58 to assist in realizing the propulsion and transmission of the power of the wire.

[0035] The dustproof component 57 includes a turntable 571 that is docked to the lower end of the swing plate 56 and rotatably connected to the inside of the connecting cylinder 58; a first guide groove 572 that is equidistantly opened inside the turntable 571 for opening and closing transmission; a connecting shaft 573 that is correspondingly inserted into the inside of the first guide groove 572; an opening and closing plate 574 that is docked to the outside of the connecting shaft 573 and located on the inner side of the turntable 571; a connecting strip 575 that is correspondingly fixedly connected to the side of the opening and closing plate 574 away from the turntable 571; a fixed plate 576 that is fastened to the inside of the connecting cylinder 58 and connected to one side of the connecting strip 575; and a second guide groove 577 that is opened inside the fixed plate 576 and connected to the outside of the connecting strip 575. Through the connection and combination of the second guide groove 577 and the connecting strip 575, the opening and closing stability of the multiple opening and closing plates 574 can be further improved.

[0036] Both the turntable 571 and the fixed plate 576 have circular openings in their center, and these openings are aligned with the detection through-hole 4 to ensure stable wire threading and detection. The first guide groove 572 is equidistantly installed along the interior of the turntable 571, and its shape is a semi-circular groove, thus enabling efficient opening and closing guidance and transmission. The opening and closing plates 574 are equidistantly distributed between the turntable 571 and the fixed plate 576, and the sides of adjacent opening and closing plates 574 are smooth and burr-free, ensuring smooth and unobstructed opening and closing when driven. The second guide groove 577 is equidistantly installed along the side of the fixed plate 576 opposite to the opening and closing plates 574, and its overall shape is an inclined straight groove, ensuring that the second guide groove 577 fits the overall shape of the connecting strip 575 to achieve stable opening and closing guidance.

[0037] Specifically, when no wire testing is being performed, in order to prevent external dust from entering the detection through hole 4 and affecting the accuracy of subsequent wire testing, dustproof components 57 are installed on the connecting cylinders 58 on the front and rear sides of the upper end of the current sensor body 2. When the multiple opening and closing plates 574 installed between the turntable 571 and the fixed plate 576 are not open, the opening ends of the front and rear sides of the detection through hole 4 can be reduced to avoid the phenomenon of external dust adhering to the inside due to the opening being too large.

[0038] When subsequent wire testing is required, the screw 52 can be rotated by turning the knob 53 connected to the right side of the screw 52, ​​causing the screw 52 to rotate inside the connecting seat 51. As the screw 52 rotates, the movable block 54, threaded to the outside of the screw 52, ​​will move to the left along the upper end of the connecting seat 51. This causes the connecting rod 55, which is connected to the front and rear sides of the movable block 54, to move to the left, thus pushing the outer end of the swing plate 56. This causes the swing plate 56 to rotate and push the bottom-connected turntable 571. As the turntable 571 rotates, the connecting shaft 573, which is connected to the first guide groove 572 equidistantly spaced inside the turntable 571, will rotate and drive the first guide groove 572... The overall semi-circular trajectory enables the synchronous pushing of the connecting shafts 573 at each location. As the connecting shafts 573 move synchronously, the opening and closing plates 574, which are connected to the outer ends of the connecting shafts 573, will cooperate with the sliding docking effect of the connecting strip 575 on the other side and the second guide groove 577 inside the fixed plate 576 to perform synchronous unfolding activities. As a result, the opening and closing plates 574 will open synchronously to release the blockage between the turntable 571 and the fixed plate 576. In this way, the wire can be inserted into the inside of the connecting cylinder 58 and enter the detection through hole 4 at the upper end of the current sensor body 2 through the opening in the middle of the turntable 571 and the fixed plate 576 to achieve rapid detection activities.

[0039] Secondly, to ensure the inserted wire is centered, after the wire is inserted, the screw 52 can be rotated in the opposite direction. As the screw 52 rotates in the opposite direction, the moving block 54, threaded onto the outer end of the screw 52, ​​will move to the right, simultaneously driving the connecting rods 55 on both sides of the outer end. This causes the swing plates 56, connected to the outer ends of the connecting rods 55 on both sides, to swing back to their original positions. As the swing plates 56 swing back to their original positions, the turntable 571, connected to the lower end of the swing plates 56 on both sides, will rotate back to its original position, causing the connecting shafts 57 at each point to rotate. 3. In conjunction with the corresponding connection of the first guide groove 572, the opening and closing plates 574 at each location retract synchronously. When the inner ends of the opening and closing plates 574 gradually retract into a circular shape, the wire will be centrally supported, placing the wire in the central position inside the detection through hole 4. This ensures that the magnetic field detected by the current sensor body 2 on the wire is evenly distributed, guaranteeing the accuracy of the detection data. In this way, the detection through hole 4 can be dustproofed when not in use. At the same time, when the wire is subsequently inserted for detection, the wire can be centrally supported to improve detection accuracy.

[0040] Please see Figures 9-11 In this embodiment, the propulsion assembly 59 includes a connecting shell 591 vertically fastened to the inside of the front connecting cylinder 58, wire holes 592 symmetrically opened in the middle of the left and right sides of the connecting shell 591 for wire entry, a mounting shell 593 built into the connecting shell 591, a first motor 594 mounted on the upper end of the mounting shell 593, an adjusting rod 595 connected to the lower end of the first motor 594 for bidirectional relative or opposite movement adjustment, adjusting blocks 596 threaded to the upper and lower sides of the adjusting rod 595 and slidably embedded in the side of the mounting shell 593, and a tensioning rod 597 correspondingly inserted longitudinally into the middle of the two adjusting blocks 596 for subsequent adjustment of the transmission tension. The outer side of the transmission belt 598 is symmetrically connected to the transmission wheels 599 on both sides of the transmission belt 598, and the two transmission wheels 599 are rotatably connected to the left and right sides inside the mounting housing 593 respectively. The second motor 5910 is connected to the rear end of the left transmission wheel 599. The cylinder 5911 is vertically installed inside the mounting housing 593. The docking plate 5912 is docked at the telescopic end of the cylinder 5911. The pressure block 5913 is installed in the middle of the docking plate 5912 to press down the transmission belt 598 to achieve flexible adjustment of the transmission distance. The pressure rollers 5914 are symmetrically rotatably connected to the left and right sides of the docking plate 5912 to ensure that the transmission belt 598 can be in a stable transmission state after being squeezed and adjusted.

[0041] The adjusting rod 595 is vertically rotatably connected to the middle of the side of the mounting shell 593, and the upper and lower ends of the adjusting rod 595 have external threads in opposite states to ensure that the adjusting rod 595 can flexibly realize the vertical relative or opposite movement of the adjusting blocks 596 set on the upper and lower sides. The adjusting blocks 596, tensioning rod 597, transmission belt 598, transmission wheel 599, second motor 5910, cylinder 5911, docking plate 5912, pressure block 5913 and pressure wheel 5914 are all symmetrically arranged vertically inside the mounting shell 593, and there is a gap between the upper and lower transmission belts 598 to ensure that the upper and lower transmission belts 598 can be stably connected with the incoming wire to achieve automatic wire propulsion. The length of the tensioning rod 597 matches the width of the transmission belt 598, and the outer end of the tensioning rod 597 is integrally equipped with a limiting end to ensure that the tensioning rod 597 can be connected with the outer end of the upper middle part of the transmission belt 598 to ensure the stability of the tension adjustment state.

[0042] Specifically, before the wire is placed in the center for testing, it will pass through the through holes 592 opened in the middle of the left and right sides of the connecting shell 591. In this way, the wire will come into contact with the transmission belts 598 set on the upper and lower sides inside the mounting shell 593, thus preparing for the subsequent automatic pushing process. When the wire detection position needs to be adjusted, the second motor 5910 connected to the rear end of the corresponding drive wheel 599 on one side can be used to make the second motor 5910 realize the synchronous opposite rotation of the upper and lower transmission wheels 599 on the left side. Thus, the two transmission wheels 599 will cooperate with the externally connected transmission belts 598 to realize the rotation of the transmission wheel 599 connected on the other side. In this way, the two transmission belts 598 will rotate synchronously in opposite directions to make contact with and push the wire that has been passed through, so that the wire can be automatically pushed forward and moved to conveniently adjust and change its detection position without manual pushing.

[0043] Secondly, when adjusting the spacing between the upper and lower transmission belts 598, the first motor 594 and the cylinder 5911 can be driven simultaneously. As the first motor 594 rotates, the adjusting rod 595 connected to the lower output end of the first motor 594 will rotate synchronously, achieving vertical relative movement of the upper and lower threaded connecting adjusting blocks 596. In this way, the two adjusting blocks 596 will achieve vertical movement of the tensioning rod 597 connected to the front middle, releasing the outward pulling effect of the tensioning rod 597 on the middle of one side of the transmission belt 598. When the cylinder 5911 is driven, the mating plate 59 will be moved outward. The push of 12, in turn, connects the pressure blocks 5913 and pressure rollers 5914 in the middle and on both sides of the docking plate 5912, thereby squeezing the middle of the other side of the transmission belt 598. In this way, by adjusting the tension of the transmission belt 598 and squeezing the transmission belt 598, the distance between the upper and lower transmission belts 598 can be reduced. This meets the needs of automatic pushing of smaller wires. At the same time, in conjunction with the squeezing effect, the contact effect between the upper and lower transmission belts 598 and the outside of the wire can be improved, ensuring the stability of its automatic pushing effect and avoiding the occurrence of pushing slippage.

[0044] When the adjusting blocks 596 on both sides move vertically in opposite directions with the adjusting rod 595, the tensioning rods 597 on both sides will re-pull outwards at the middle of one end of the corresponding transmission belt 598, thereby tightening the transmission belt 598 as a whole, greatly improving the stability of the transmission of the transmission belt 598 and preventing slippage. The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A low-power intelligent current sensor, comprising a base (1), a current sensor body (2) arranged at the upper end of the base (1), a wiring terminal (3) butted against the front side of the lower end of the current sensor body (2), and a detection through hole (4) formed in the middle of the upper end of the current sensor body (2); characterized in that Further comprising a dustproof pushing device (5) arranged outside the current sensor body (2), the dustproof pushing device (5) comprising a connecting seat (51) butted against the upper end of the current sensor body (2), a screw rod (52) rotatably connected to the inside of the connecting seat (51), a rotating knob (53) butted against the right side of the screw rod (52), a moving block (54) threadedly butted against the outside of the screw rod (52), a connecting rod (55) connected to the front and back sides of the moving block (54), a swing plate (56) butted against the outer end of the connecting rod (55), a dustproof assembly (57) connected to the lower end of the swing plate (56), a connecting cylinder (58) butted against the front and back sides of the upper end of the current sensor body (2) and connected to the outside of the dustproof assembly (57), and a pushing assembly (59) arranged inside one of the connecting cylinders (58). The dustproof assembly (57) comprises a rotating disc (571) butted against the lower end of the swing plate (56) and rotatably connected to the inside of the connecting cylinder (58), a first guide groove (572) formed in the inside of the rotating disc (571), a connecting shaft (573) inserted into the first guide groove (572), an opening and closing plate (574) butted against the outside of the connecting shaft (573), a connecting strip (575) fixedly arranged outside the opening and closing plate (574), a fixing disc (576) fastened to the inside of the connecting cylinder (58) and connected to one side of the connecting strip (575), and a second guide groove (577) formed in the inside of the fixing disc (576) and connected to the outside of the connecting strip (575). The pushing assembly (59) comprises a connecting shell (591) fastened to the inside of one of the connecting cylinders (58), wire through holes (592) formed in the middle of both sides of the connecting shell (591), a mounting shell (593) arranged inside the connecting shell (591), a first motor (594) arranged at the upper end of the mounting shell (593), an adjusting rod (595) butted against the lower end of the first motor (594), adjusting blocks (596) threadedly butted against both sides of the outer end of the adjusting rod (595), a tension rod (597) inserted into the middle of the adjusting block (596), a transmission belt (598) connected to the outside of the tension rod (597), transmission wheels (599) butted against both sides of the transmission belt (598), a second motor (5910) connected to the outer end of one of the transmission wheels (599), a pneumatic cylinder (5911) arranged inside the mounting shell (593), a butting plate (5912) butted against the telescopic end of the pneumatic cylinder (5911), a pressing block (5913) arranged in the middle of the butting plate (5912), and pressing wheels (5914) arranged on both sides of the butting plate (5912).

2. The low power consumption smart current sensor according to claim 1, wherein: The rotating disc (571) and the middle part of the fixed disc (576) are provided with circular openings, and the openings of the rotating disc (571) and the fixed disc (576) are on the same horizontal line with the detection through hole (4).

3. The low power consumption smart current sensor according to claim 1, wherein: The first guide groove (572) is installed along the rotating disc (571) and is provided with a semicircular groove shape.

4. The low power consumption smart current sensor according to claim 1, wherein: The opening and closing plates (574) are distributed between the rotating disc (571) and the fixed disc (576), and the adjacent sides of the opening and closing plates (574) are smooth without burrs.

5. The low power consumption smart current sensor according to claim 1, wherein: The second guide groove (577) is provided on the side of the fixed disc (576) opposite to the opening and closing plate (574), and the second guide groove (577) is provided in the form of an inclined linear groove.

6. The low power consumption smart current sensor according to claim 1, wherein: The adjusting rod (595) is vertically connected to the middle part of the side edge of the mounting shell (593), and the adjusting rod (595) is provided with opposite external threads on the upper and lower ends.

7. The low power consumption smart current sensor according to claim 1, wherein: The adjusting block (596), the tensioning rod (597), the transmission belt (598), the transmission wheel (599), the second motor (5910), the air cylinder (5911), the butt joint plate (5912), the pressing block (5913) and the pressing wheel (5914) are arranged symmetrically inside the mounting shell (593), and there is a gap between the transmission belts (598).

8. The low power consumption smart current sensor according to claim 1, wherein: The length of the tensioning rod (597) matches the width of the transmission belt (598), and the outer end of the tensioning rod (597) is integrally provided with a limiting end.

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