CN215953710U

CN215953710U - High accuracy transformer core folder ground current monitoring devices based on thing networking

Info

Publication number: CN215953710U
Application number: CN202121307910.6U
Authority: CN
Inventors: 谌宏飞; 胡纽; 万美政
Original assignee: Wuhan Feiyan Technology Co ltd
Current assignee: Wuhan Feiyan Technology Co ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2022-03-04
Anticipated expiration: 2031-06-11

Abstract

The utility model relates to a high-precision transformer core clamp grounding current monitoring device based on the Internet of things, which comprises a main case body, wherein the main case body comprises an upper cover part and a placing shell body hinged with the upper cover part, the upper cover part is connected with the placing shell body through a lockset, a first placing groove is formed in the top of the placing shell body, a main machine is placed in the first placing groove, a second placing groove is formed in one side of the placing shell body, a current caliper is placed in the second placing groove, a wire placing groove is formed in one side of the inner wall of the second placing groove, one end of the wire placing groove extends into the first placing groove, the wire placing groove, the first placing groove and the second placing groove are communicated, the main machine is connected with the current caliper through a wire, and the wire is placed in the wire placing groove. The utility model relates to the technical field of current measuring equipment. The utility model has the effect of prolonging the service life of the device.

Description

High accuracy transformer core folder ground current monitoring devices based on thing networking

Technical Field

The utility model relates to the technical field of current measuring equipment, in particular to a high-precision grounding current monitoring device for a transformer core clamp based on the Internet of things.

Background

The core is the main magnetic circuit part in the transformer. Usually made by stacking hot-rolled or cold-rolled silicon steel sheets containing silicon in a high content and coated with an insulating varnish on their surface. The iron core and the wound coil form a complete electromagnetic induction system.

The iron core clamping piece only fixes the iron core silicon steel sheet. The position of the clamping piece is on two sides of the upper iron yoke and the lower iron yoke of the iron core.

The core of the transformer is normally grounded and only a little grounded, since a floating potential is generated between the core and the ground, a ground current is generated, which is very small under normal conditions.

When current detection is performed, a conventional iron core clamp grounding current detection device is firstly connected with a host and a current caliper by a wire and then operated.

By the operation mode, working steps in working are increased, and after the electric wire bayonet is plugged with the host and the current caliper for multiple times, the host or the current caliper interface is damaged, so that the service life of the equipment is shortened; in addition, after the device used up, the easy current calliper was forgotten to retrieve to the box inside, leads to the easy injury by the foreign object of current calliper, has further reduced the life of device.

SUMMERY OF THE UTILITY MODEL

According to the defects in the prior art, the utility model aims to provide the high-precision transformer core clamp grounding current monitoring device based on the Internet of things, and the device has the effect of prolonging the service life of the device.

The technical purpose of the utility model is realized by the following technical scheme:

a grounding current monitoring device for a high-precision transformer core clamp based on the Internet of things comprises a main case body, wherein the main case body comprises an upper cover part and a placing shell hinged with the upper cover part, the upper cover part is connected with the placing shell through a lockset, a first placing groove is formed in the top of the placing shell, a host is placed in the first placing groove, a second placing groove is formed in one side of the placing shell, current calipers are placed in the second placing groove, a wire placing groove is formed in one side of the inner wall of the second placing groove, one end of the wire placing groove extends into the first placing groove, and the wire placing groove, the first placing groove and the second placing groove are communicated;

the main machine is connected with the current caliper through a wire, and the wire is placed inside the paying-off wire.

Through adopting above-mentioned technical scheme, at first be connected host computer and electric current calliper through the electric wire, operating personnel need not when using, and the reuse electric wire is connected host computer and electric current calliper, has reduced the operating procedure, has improved work efficiency, in addition, has also avoided electric current calliper to place alone, leads to electric current calliper not in time to retrieve inside the mainframe box body after having used up, has improved electric current calliper's life.

The present invention in a preferred example may be further configured to: the wire arranging groove is provided with a wire arranging assembly in a penetrating mode, and the wire arranging assembly is used for accommodating wires inside the wire arranging groove.

Through adopting above-mentioned technical scheme, make the inside electric wire of unwrapping wire groove not knot through reason line subassembly, improved the life of electric wire.

The present invention in a preferred example may be further configured to: the wire arranging assembly comprises a plurality of rotating discs, a plurality of fourth placing grooves are formed in the bottom of the inner wall of the wire placing groove, and the fourth placing grooves extend to the length direction of the wire placing groove;

a fifth placing groove is formed in the bottom of the inner wall of one of the fourth placing grooves and communicated with the interiors of the plurality of fourth placing grooves;

a plurality of first fixing rods are fixed at the bottom of the inner wall of the fifth placing groove, a first gear is rotatably sleeved on the outer peripheral surface of each first fixing rod, the rotating disc is positioned in the corresponding fourth placing groove, the bottom of the rotating disc is fixed with the top of the first gear, and the rotating disc is rotatably connected with the corresponding fourth placing groove;

two groups of limiting parts are symmetrically arranged on each rotating disc;

the limiting part comprises two second fixing rods, sleeves are rotatably sleeved on the outer peripheral surfaces of the second fixing rods, and the two sleeves in the same limiting part are not in contact with each other;

and a pushing assembly is arranged on the fifth placing groove in a penetrating manner and drives the first gears to rotate.

By adopting the technical scheme, the electric wires sequentially pass through each limiting part on each rotating disc, and an operator drives the rotating discs to rotate through the pushing assembly, so that the electric wires are placed in a curve in the square wire groove, and longer electric wires can be placed in the wire releasing groove;

in addition, the sleeve is rotatably connected with the second fixing rod, when the electric wire moves, the electric wire drives the sleeve to rotate around the corresponding second fixing rod, friction between the electric wire and the sleeve is reduced, and the service life of the electric wire is further prolonged.

The present invention in a preferred example may be further configured to: the pushing assembly comprises a guide rod, two ends of the guide rod are respectively fixed on two sides of the inner wall of the fifth placing groove, a first straight rack is sleeved on the guide rod in a sliding mode, and the first straight rack and the first gears are meshed with each other;

a sixth placing groove is formed in the lower half portion of one side of the inner wall of the fifth placing groove, a third fixing rod is formed in one side of the inner wall of the sixth placing groove, a second sleeve is arranged on the outer peripheral surface of the third fixing rod, the second sleeve is in damping rotation connection with the third fixing rod, and a second gear is fixed at one end, away from the third fixing rod, of the second sleeve;

a fixing plate is fixed at the bottom of the outer peripheral surface of the first straight rack close to the sixth placing groove, a second straight rack is arranged on one side of the fixing plate close to the sixth placing groove, the second straight rack extends to the inside of the sixth placing groove partially, and the second straight rack is meshed with the second gear;

the first through hole has been seted up to the one side of placing the casing, first through hole with the sixth standing groove is inside to be linked together, the second gear is kept away from second sheathed tube one side is fixed with the dwang, the one end of dwang extends to place the outside of casing.

Through adopting above-mentioned technical scheme, operating personnel rotates the dwang, and the dwang drives second gear revolve, and the second gear drives the motion of second spur rack, and the second spur rack drives the fixed plate motion, and the fixed plate drives first straight-tooth rack along guide arm place straight line direction motion, and first straight-tooth rack drives a plurality of gear revolve simultaneously, finally drives a plurality of rolling discs and rotates, has realized the purpose of receiving and releasing the electric wire.

The present invention in a preferred example may be further configured to: and a second guide rod is fixed on one side of the inner wall of the sixth placing groove, one end of the second guide rod extends to the inside of the second straight rack, and the second straight rack is connected with the second guide rod in a sliding manner.

By adopting the technical scheme, the second guide rod further limits the movement direction of the second spur rack.

The present invention in a preferred example may be further configured to: the dwang is located the one end of placing the casing is fixed with the knob.

Through adopting above-mentioned technical scheme, the knob makes things convenient for operating personnel to rotate the knob fast.

The present invention in a preferred example may be further configured to: the top of the inner wall of the second placing groove is provided with a rubber block, and one side of the rubber block is in contact with the current caliper.

Through adopting above-mentioned technical scheme, because block rubber self texture is softer, and block rubber self has elastic recovery ability, when current calliper was located inside the second standing groove, current calliper contacted with the block rubber, avoided current calliper part to move to placing the casing outside, avoided current calliper and placed the outside article of casing and collided mutually, improved current calliper's life.

The present invention in a preferred example may be further configured to: one side of the placing shell is hinged with a baffle, the baffle shields an opening of the second placing groove, a seventh placing groove is formed in one side, close to the placing shell, of the baffle, and a magnet is arranged inside the seventh placing groove.

Through adopting above-mentioned technical scheme, shield the opening of second standing groove through the baffle, avoid inside dust or other impurity enter into the second standing groove, simultaneously, adsorb on placing the casing through magnet, under the condition that does not receive exogenic action, the baffle shields the opening of second standing groove all the time.

In summary, the utility model includes at least one of the following beneficial technical effects:

1. through using the electric wire with host computer and electric current calliper body coupling, reduce the operation of many times plug between electric wire and host computer and the electric power calliper, secondly avoided electric current calliper to place alone, lead to electric current calliper not in time retrieve to the mainframe box body after having used up inside, improved electric current calliper's life.

2. The baffle is arranged on one side of the placing shell, the opening of the second placing groove is shielded by the baffle, dust or other impurities are prevented from entering the second placing groove, meanwhile, the baffle is adsorbed on the placing shell through the magnet, and the opening of the second placing groove is always shielded by the baffle under the condition of not being acted by external force.

3. Splice through second standing groove inner wall top has the block rubber, and block rubber self texture is softer, and block rubber self has elastic recovery ability, and when current calliper was located the second standing groove inside, current calliper contacted with the block rubber, avoided current calliper part to move to placing the casing outside, avoided current calliper and placed the outside article of casing and collided mutually, improved current calliper's life.

Drawings

Fig. 1 is a schematic view of the entire internal structure of the present embodiment.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is an enlarged schematic view of B in fig. 1.

Fig. 4 is an enlarged schematic view of the structure at C in fig. 1.

Fig. 5 is a schematic view of the initial placement positions of the four rotating disks and the limiting portion in fig. 2.

Fig. 6 is a schematic view of a half-section of the housing portion of fig. 1.

Fig. 7 is an enlarged schematic view of the structure at D in fig. 6.

In the figure, 1, a main cabinet body; 11. an upper cover portion; 12. placing the shell; 121. a first placing groove; 122. a second placing groove 2 and a host; 21. current calipers; 3. a wire releasing groove; 4. a wire arranging assembly; 41. rotating the disc; 42. a fourth placing groove; 43. a fifth placing groove; 431. a first fixing lever; 432. a first gear; 5. a limiting part; 51. a second fixing bar; 52. a sleeve; 6. a pushing assembly; 61. a guide bar; 62. a first straight rack; 7. a sixth placing groove; 71. a third fixing bar; 72. a second sleeve; 73. a second gear; 621. a fixing plate; 74. a second spur rack; 8. a first through hole; 75. rotating the rod; 76. a second guide bar; 751. a knob; 81. a rubber block; 9. a baffle plate; 91. a seventh placing groove; 92. and a magnet.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

referring to fig. 1-7, the utility model discloses a high-precision transformer core clamp grounding current monitoring device based on the internet of things, which comprises a main case body 1. The main case body 1 is made of metal material. The main cabinet body 1 includes an upper cover 11 and a housing 12 hinged to the upper cover 11. The upper cover part 11 is connected with the placing shell 12 through a lock. Place the top of casing 12 and seted up first standing groove 121, host computer 2 has been placed to first standing groove 121 inside, has the display screen on the host computer 2, and host computer 2 is inside to be provided with wireless transmitting part, can pass through radio signal with the measuring result and send to the server of command center.

A second placing groove 122 is formed in one side of the placing case 12, and the current caliper 21 is placed in the second placing groove 122. The rubber block 81 is disposed on the top of the inner wall of the second placing groove 122, and one side of the rubber block 81 is in contact with the current caliper 21. Because the texture of rubber block 81 is softer, and rubber block 81 itself has the elasticity resilience ability, when electric current calliper 21 was located inside second standing groove 122, electric current calliper 21 contacted with rubber block 81, avoided electric current calliper 21 part to move to placing the casing 12 outside, avoided electric current calliper 21 and placed the outside article of casing 12 and collided mutually, improved electric current calliper 21's life.

One side of placing the shell 12 is hinged with a baffle 9, the baffle 9 shields the opening of the second placing groove 122, a seventh placing groove 91 is formed in one side of the baffle 9 close to the placing shell 12, and a magnet 92 is arranged inside the seventh placing groove 91. The opening of the second placing groove 122 is shielded by the baffle 9, so that dust or other impurities are prevented from entering the second placing groove 122, and meanwhile, the baffle 9 is adsorbed on the placing shell 12 through the magnet 92, so that the opening of the second placing groove 122 is always shielded by the baffle 9 under the condition of not being influenced by external force. The magnet 92 may be attached to the outer surface of the placement housing 12.

A pay-off groove 3 is formed in one side of the inner wall of the second placing groove 122, one end of the pay-off groove 3 extends into the first placing groove 121, and the pay-off groove 3, the first placing groove 121 and the second placing groove 122 are communicated; the host computer is connected with the current caliper through an electric wire, and the electric wire is placed inside the paying-off wire. At first be connected host computer and electric current calliper through the electric wire, operating personnel need not when using, and the reuse electric wire is connected host computer and electric current calliper, has reduced the operating procedure, has improved work efficiency, in addition, has also avoided electric current calliper to place alone, leads to electric current calliper not in time to retrieve to mainframe box body 1 inside after having used up, has improved electric current calliper's life.

Wire arrangement component 4 penetrates through wire arrangement groove 3, and wire arrangement component 4 accommodates wires inside wire arrangement groove 3. The electric wires in the wire releasing groove 3 are not knotted through the wire arranging assembly 4, and the service life of the electric wires is prolonged.

The wire management assembly 4 comprises a plurality of rotary discs 41, and in the present embodiment, the number of the rotary discs 41 is four. A plurality of fourth standing grooves 42 have been seted up to the inner wall bottom of stringing groove 3, and a plurality of fourth standing grooves 42 all extend to the length direction setting of stringing groove 3. The fourth placement grooves 42 correspond to the number, position and shape of the rotary disks 41.

The bottom of the inner wall of one of the fourth placing grooves 42 is provided with a fifth placing groove 43, and the fifth placing groove 43 is communicated with the insides of the plurality of fourth placing grooves 42. A plurality of first fixing rods 431 are fixed at the bottom of the inner wall of the fifth placing groove 43, a first gear 432 is rotatably sleeved on the outer peripheral surface of each first fixing rod 431, the rotating disc 41 is positioned in the corresponding fourth placing groove 42, and the top of the rotating disc 41 is flush with the top of the pay-off groove 3. The bottom of the rotary disc 41 is fixed to the top of the first gear 432, and the rotary disc 41 is rotatably connected to the corresponding fourth placing groove 42.

Two groups of limiting parts 5 are symmetrically arranged on each rotating disc 41; the limiting part 5 comprises two second fixing rods 51 and the second fixing rods 51, wherein the outer peripheral surfaces of the second fixing rods 51 are rotatably sleeved with sleeves 52. Because the sleeve 52 is rotatably connected with the second fixing rod 51, when the electric wire moves, the electric wire drives the sleeve 52 to rotate around the corresponding second fixing rod 51, so that the friction force between the electric wire and the sleeve 52 is reduced, and the service life of the electric wire is further prolonged. The two sleeves 52 of the same stopper 5 do not contact each other. The distance between the two sleeves 52 in the same set of retainers 5 is sufficient to place a wire. The electric wire loops through every spacing portion 5 on every rolling disc 41, and operating personnel drives rolling disc 41 through pushing assembly 6 and rotates, makes the electric wire be the curve and places in the inside of square wire casing, makes to be located and to place longer electric wire in wire casing 3.

The fifth placing groove 43 is provided with a pushing assembly 6 in a penetrating manner, and the pushing assembly 6 drives the first gears 432 to rotate. The pushing assembly 6 comprises a guide rod 61, two ends of the guide rod 61 are respectively fixed on two sides of the inner wall of the fifth placing groove 43, a first straight rack 62 is slidably sleeved on the guide rod 61, and the first straight rack 62 is meshed with the first gears 432;

a sixth placing groove 7 is formed in the lower half part of one side of the inner wall of the fifth placing groove 43, a third fixing rod 71 is formed in one side of the inner wall of the sixth placing groove 7, a second sleeve 7252 is arranged on the outer peripheral surface of the third fixing rod 71, the second sleeve 7252 is in damping rotation connection with the third fixing rod 71, and a second gear 73 is fixed to one end, away from the third fixing rod 71, of the second sleeve 7252;

a fixing plate 621 is fixed at the bottom of the outer peripheral surface of the first straight rack 62 close to the sixth placing groove 7, a second straight rack 74 is arranged at one side of the fixing plate 621 close to the sixth placing groove 7, and the second straight rack 74 partially extends into the sixth placing groove 7. A second guide rod 7661 is fixed on one side of the inner wall of the sixth placing groove 7, one end of the second guide rod 7661 extends into the second straight rack 74, and the second straight rack 74 is connected with the second guide rod 7661 in a sliding mode. The second guide bar 7661 further limits the direction of movement of the second spur rack 74. And the second spur rack 74 is intermeshed with the second gear 73. During the moving stroke of the first straight rack 62, the first straight rack 62 is always meshed with the four first gears 432.

Place one side of casing 12 and seted up first through-hole 8, first through-hole 8 is linked together with sixth standing groove 7 is inside, and one side that second gear 73 kept away from second sleeve 7252 is fixed with dwang 75, and the one end of dwang 75 extends to the outside of placing casing 12. A knob 751 is fixed to the rotating lever 75 at one end of the placing case 12. The knob 751 has a cross-sectional base area that is 3 times the cross-sectional area of the rotating lever 75. Knob 751 facilitates rapid rotation of knob 751 by an operator. An operator rotates the rotating rod 75, the rotating rod 75 drives the second gear 73 to rotate, the second gear 73 drives the second straight rack 74 to move, the second straight rack 74 drives the fixing plate 621 to move, the fixing plate 621 drives the first straight rack 62 to move along the straight line direction of the guide rod 61, the first straight rack 62 simultaneously drives the first gears 432 to rotate, and finally the rotating discs 41 are driven to rotate, so that the purpose of winding and unwinding wires is achieved.

The implementation principle of the above embodiment is as follows:

when the operator uses the apparatus, the operator first rotates the upper cover portion 11 so that the first placing groove 121 appears in the operator's field of view.

Further, the operator rotates the knob 751, the knob 751 drives the second gear 73 to rotate, and the second gear 73 drives the second sleeve 7252 to rotate around the third fixing rod 71. Since the rotation between the second sleeve 7252 and the third fixing rod 71 is damped. The second sleeve 7252 does not rotate autonomously without being subjected to external forces. The second gear 73 drives the second spur rack 74 to move along the linear direction of the second guide rod 7661. The second spur rack 74 drives the fixing plate 621 to move, and the fixing plate 621 drives the first spur rack 62 to move along the linear direction of the guide rod 61. The first straight rack 62 drives the four first gears 432 to rotate, and the four first gears 432 drive the corresponding rotating disc 41 to rotate.

When knob 751 rotates second sleeve 7252 ninety degrees. The four rotating discs 41 drive the electric wires to be in a straight line shape.

Further, the operator rotates the shutter 9 to take out the current caliper 21. The operator wears professional operating gloves and performs measurement work using the current caliper 21.

When the work is completed, the operator first places the current calipers 21 back inside the second placing groove 122.

Next, the operator reversely rotates the knob 751 to return the knob 751 to the initial position, at this time, the knob 751 finally causes the four rotary disks 41 to return to the initial position, and the stoppers 5 on the four rotary disks 41 cause the electric wire inside the wire dispensing slot 3 to assume a curved state.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.

Claims

1. The utility model provides a high accuracy transformer core folder ground current monitoring devices based on thing networking, includes mainframe box body (1), mainframe box body (1) including last cap (11) and with go up cap (11) looks articulated place casing (12), go up cap (11) with place casing (12) and be connected through the tool to lock, first standing groove (121) have been seted up at the top of placing casing (12), host computer (2) have been placed to first standing groove (121) inside, a serial communication port, second standing groove (122) have been seted up to one side of placing casing (12), electric current calliper (21) have been placed to second standing groove (122) inside, wire laying groove (3) have been seted up to second standing groove (122) inner wall one side, the one end of wire laying groove (3) extends to inside first standing groove (121), wire laying groove (3), The first placing groove (121) and the second placing groove (122) are communicated with each other;

the main machine (2) is connected with the current calipers (21) through wires, and the wires are placed in the wire discharge groove (3).

2. The high-precision transformer core clamp grounding current monitoring device based on the Internet of things of claim 1, wherein: wire arrangement components (4) penetrate through the wire arrangement groove (3), and wires inside the wire arrangement groove (3) are accommodated in the wire arrangement components (4).

3. The high-precision transformer core clamp grounding current monitoring device based on the Internet of things of claim 2, wherein: the wire arranging assembly (4) comprises a plurality of rotating discs (41), a plurality of fourth placing grooves (42) are formed in the bottom of the inner wall of the wire placing groove (3), and the fourth placing grooves (42) extend to the length direction of the wire placing groove (3);

a fifth placing groove (43) is formed in the bottom of the inner wall of one of the fourth placing grooves (42), and the fifth placing groove (43) is communicated with the interiors of the plurality of fourth placing grooves (42);

a plurality of first fixing rods (431) are fixed at the bottom of the inner wall of the fifth placing groove (43), a first gear (432) is rotatably sleeved on the outer peripheral surface of each first fixing rod (431), the rotating disc (41) is positioned in the fourth placing groove (42) correspondingly, the bottom of the rotating disc (41) is fixed with the top of the first gear (432), and the rotating disc (41) is rotatably connected with the fourth placing groove (42) correspondingly;

two groups of limiting parts (5) are symmetrically arranged on each rotating disc (41);

the limiting part (5) comprises two second fixing rods (51), the second fixing rods (51) are sleeved with sleeves (52) in a rotating mode on the peripheral surfaces of the second fixing rods (51), and the two sleeves (52) in the same limiting part (5) are not in contact with each other;

a pushing assembly (6) penetrates through the fifth placing groove (43), and the pushing assembly (6) drives the first gears (432) to rotate.

4. The high-precision transformer core clamp grounding current monitoring device based on the Internet of things of claim 3, wherein: the pushing assembly (6) comprises a guide rod (61), two ends of the guide rod (61) are respectively fixed to two sides of the inner wall of the fifth placing groove (43), a first straight rack (62) is slidably sleeved on the guide rod (61), and the first straight rack (62) is meshed with the first gears (432) mutually;

a sixth placing groove (7) is formed in the lower half portion of one side of the inner wall of the fifth placing groove (43), a third fixing rod (71) is formed in one side of the inner wall of the sixth placing groove (7), a second sleeve (72) is arranged on the outer peripheral surface of the third fixing rod (71), the second sleeve (72) is in damping rotation connection with the third fixing rod (71), and a second gear (73) is fixed at one end, far away from the third fixing rod (71), of the second sleeve (72);

a fixing plate (621) is fixed to the bottom of the outer peripheral surface of the first straight rack (62) close to the sixth placing groove (7), a second straight rack (74) is arranged on one side, close to the sixth placing groove (7), of the fixing plate (621), the second straight rack (74) partially extends into the sixth placing groove (7), and the second straight rack (74) is meshed with the second gear (73);

place one side of casing (12) and seted up first through-hole (8), first through-hole (8) with sixth standing groove (7) are inside to be linked together, second gear (73) are kept away from one side of second sleeve pipe (72) is fixed with dwang (75), the one end of dwang (75) extends to place the outside of casing (12).

5. The high-precision transformer core clamp grounding current monitoring device based on the Internet of things of claim 4, wherein: a second guide rod (76) is fixed on one side of the inner wall of the sixth placing groove (7), one end of the second guide rod (76) extends to the inside of the second straight rack (74), and the second straight rack (74) is in sliding connection with the second guide rod (76).

6. The high-precision transformer core clamp grounding current monitoring device based on the Internet of things of claim 4, wherein: the rotating rod (75) is positioned at one end of the placing shell (12) and is fixedly provided with a knob (751).

7. The high-precision transformer core clamp grounding current monitoring device based on the Internet of things of claim 1, wherein: the top of the inner wall of the second placing groove (122) is provided with a rubber block (81), and one side of the rubber block (81) is in contact with the current caliper (21).

8. The high-precision transformer core clamp grounding current monitoring device based on the Internet of things of claim 1, wherein: one side of the placing shell (12) is hinged with a baffle (9), the baffle (9) shields an opening of the second placing groove (122), a seventh placing groove (91) is formed in one side, close to the placing shell (12), of the baffle (9), and a magnet (92) is arranged inside the seventh placing groove (91).