Clamping device for current rising of current transformer

By designing a clamping device for current transformer boosting, using the probe to connect to the busbar copper bus, locking the fixing teeth with the joint bolts, quickly locking the rotating disk, and enhancing the stability with the adsorption magnet, the problem of the boosting equipment fixture being difficult to clamp the joint bolts is solved, achieving a stable connection and simple operation.

CN120594892AActive Publication Date: 2025-09-05SHANDONG WUZHOU ELECTRIC CO LTD SHOUGUANG BRANCH +1
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Patent Information

Application Number
CN202510805845.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-06-17
Publication Date
2025-09-05
Estimated Expiration
2045-06-17

AI Technical Summary

Technical Problem

The existing current boosting equipment fixtures have difficulty clamping the connector bolts at the current transformer, and the wiring is prone to falling off, resulting in test failure or even instrument failure.

Method used

A clamping device for current transformer current boosting is designed, which includes a sleeve, a probe, a fixed tooth, a rotating disk and a toggle device. The probe is connected to the busbar copper bar, the fixed tooth is locked with the joint bolt, the rotating disk can achieve quick locking and opening, and the adsorption magnet enhances stability.

Benefits of technology

It achieves a stable connection between the current transformer and the current-boosting equipment, avoids wiring loss, is suitable for the narrow space of the central cabinet, is easy to operate, and is compatible with a variety of connector bolts to prevent test failures and instrument malfunctions.

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Abstract

The invention relates to the technical field of current transformer current rising devices, in particular to a clamping device for current transformer current rising, which comprises a sleeve, and a sleeving hole which penetrates through the left side of the sleeve and is used for sleeving a joint bolt is formed in the sleeve; the side wall of the sleeve is provided with a probe sliding hole penetrating in the left-right direction, and a contact probe is slidably connected in the probe sliding hole. The right side of the sleeve is connected with a rotating disc capable of pushing the end part of the contact probe out of the probe sliding hole and locking the position of the contact probe; a fixed tooth groove is formed in the inner side wall of the sleeve, the fixed tooth groove communicates with the sleeving hole, and fixed teeth are rotationally connected into the fixed tooth groove; the fixed teeth can be completely rotated into the fixed tooth grooves when rotating, and can also be rotated until the fixed teeth extend into the sleeving holes; the sleeve is further connected with a poking device used for poking the fixed teeth to rotate. After the clamping device for current rising of the current transformer is connected with the clamping device, the problem that a connecting wire falls off cannot occur; moreover, the device is small and exquisite, is suitable for the narrow space of the centrally installed switchgear, and is suitable for almost all centrally installed switchgears.
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Description

Technical Field

[0001] The invention relates to the technical field of current transformer current boosting devices, in particular to a clamping device for current transformer current boosting. Background Art

[0002] In substations, 10kV and 35kV center-mounted switchgear are widely used. When a new line is connected or the protection system is calibrated, a current-increasing transmission test is required. That is, current is passed through the current transformer at the outlet of the switchgear to simulate actual operating conditions and detect the sampling and operation of the protection device. This work is very difficult. First, the busbars at the outlet are insulated, and only the current transformer joint bolts are exposed. Second, traditional current-increasing equipment fixtures are difficult to clamp the joint bolts at the current transformer. In addition, the rising current is large, and the wiring is easy to fall off, resulting in test failure or even instrument failure. Summary of the Invention

[0003] The main purpose of the present invention is to provide a clamping device for current transformer current boosting, so as to solve the problem in the above-mentioned prior art that the current boosting equipment clamp is difficult to clamp the joint bolts at the current transformer, and the wiring is easy to fall off, resulting in test failure or even instrument failure.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a clamping device for current transformer current boosting, including a sleeve, a socket hole for socketing a joint bolt is provided inside the sleeve and passes through the left side thereof; a probe sliding hole is provided on the side wall of the sleeve and passes through the left and right directions, and a contact probe is slidably connected in the probe sliding hole; a rotating disk capable of pushing the end of the contact probe out of the probe sliding hole and locking the position of the contact probe is connected to the right side of the sleeve; a fixed tooth groove is provided on the inner side wall of the sleeve, the fixed tooth groove is connected to the socket hole, and a fixed tooth is rotatably connected in the fixed tooth groove; when the fixed tooth is rotated, it can be completely rotated into the fixed tooth groove, or it can be rotated to extend the fixed tooth into the socket hole; the sleeve is also connected to a toggle device for toggling the fixed tooth.

[0005] Furthermore, the toggle device includes a toggle rod, a toggle rod hole is provided on the side wall of the sleeve, and the toggle rod hole passes through the left side of the sleeve; the toggle rod is movably connected in the toggle rod hole, and a toggle groove is provided on the left side of the toggle rod; a lug is provided on the fixed tooth, and the lug is movably connected in the toggle groove.

[0006] Furthermore, a bite spring is provided in the middle of the toggle rod, and the toggle rod hole passes through the right side of the sleeve; the right end of the toggle rod hole is threadedly connected to a fixed adjustment bolt, and a toggle rod reset spring is movably connected in the toggle rod hole, and the toggle rod reset spring is located between the fixed adjustment bolt and the toggle rod.

[0007] Furthermore, a rotating disk movable hole is provided inside the sleeve and passes through the right side thereof, and the rotating disk is slidably connected to the rotating disk movable hole; the right end of the rotating disk is a right plate, and the outer diameter of the right plate is greater than or equal to the outer diameter of the sleeve; a plurality of movable hole magnets are circumferentially provided inside the rotating disk movable hole, and the magnetic poles of the right ends of adjacent movable hole magnets are different; a plurality of rotating disk magnets are circumferentially provided at the left end of the rotating disk, and the magnetic poles of the left ends of adjacent rotating disk magnets are different; the number of rotating disk magnets is the same as the number of movable hole magnets, and the position of the rotating disk magnets is opposite to the position of the movable hole magnets.

[0008] Furthermore, the rotating disk includes a central axis, a left axis fixedly connected to the left end of the central axis, and a right plate fixedly connected to the right end of the central axis; the left axis is slidably connected to the movable hole of the rotating disk, and the outer diameter of the central axis is smaller than the outer diameter of the left axis; the right end of the inner side wall of the movable hole of the rotating disk is fixedly connected with an anti-slip convex axis to prevent the rotating disk from sliding out of the movable hole of the rotating disk.

[0009] Furthermore, a rotating disk restoring spring is provided between the rotating disk and the bottom of the rotating disk movable hole.

[0010] Furthermore, a probe drainage piece and a toggle rod drainage piece are fixedly connected to the side wall of the sleeve, the probe drainage piece is in contact with the contact probe, and the toggle rod drainage piece is in contact with the toggle rod; the probe drainage piece and the toggle rod drainage piece are connected with lead-out wires.

[0011] Furthermore, one end of a stabilizing spring is fixedly connected to the bottom of the sleeve hole, the other end of the stabilizing spring is fixedly connected to an adsorption magnet, and a limiting pull rope is connected between the adsorption magnet and the bottom of the sleeve hole.

[0012] Furthermore, a thin shaft is provided in the middle of the contact probe, and a probe recovery spring is sleeved on the outer side of the thin shaft; the left end of the probe recovery spring is fixedly connected to the probe sliding hole, and the right end is fixedly connected to the thin shaft.

[0013] Furthermore, a probe pressing spring is provided in the middle of the contact probe; and a pointed tip is provided at the left end of the contact probe.

[0014] The beneficial effects of the present invention are: The current transformer current boost clamping device will not cause the problem of wiring falling off after connection; the device is compact and suitable for the small space of the center cabinet. At the same time, it is highly practical and adaptable to almost all center cabinets; the device is easy to operate, just need to insert the device and push the back, and it is also very convenient to remove, just rotate the tail of the device and pull it out.

[0015] By setting a probe, the probe is connected to the busbar copper bar, and the busbar copper bar is connected to the current transformer, thereby realizing the connection between the probe and the current transformer; by setting a fixing tooth, the locking connection between the sleeve and the joint bolt can be realized; the connection between the sleeve and the fixing tooth and the joint bolt is relatively tight, preventing the wiring from falling off, causing test failure or even instrument failure; by setting a lead-out wire, it is used to connect to the current-boosting equipment.

[0016] By setting a rotating disk, the contact probe and the toggle rod can be pushed and their positions can be locked; by setting a bite spring, a locking force can be provided for the fixed teeth; by setting a probe tightening spring, a tightening force can be provided for the contact probe.

[0017] By arranging the movable hole magnet, the rotating disk magnet and the rotating disk restoring spring, the rotating disk can be quickly locked and opened.

[0018] By arranging an adsorption magnet, the joint bolt can be attracted when the joint bolt is made of ferromagnetic material, thereby enhancing the stability of the connection between the sleeve and the joint bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings in the specification, which constitute a part of this application, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0020] Figure 1 Schematic diagram of the structure of the clamping device for current transformer current boosting in the embodiment; Figure 2 This is a schematic diagram of the structure of the lead wire in the embodiment; Figure 3 Schematic diagram of the structure of the fixed teeth in occlusal state in the embodiment; Figure 4 This is a schematic structural diagram of the embodiment in which the fixed teeth are in a loose state; Figure 5 Schematic diagram of the distribution of the rotating disk magnets in the embodiment; Figure 6 Schematic diagram of the distribution of movable hole magnets in the embodiment; Figure 7 Schematic diagram of the distribution of the probe sliding hole and the toggle rod hole in the embodiment; Figure 8 Schematic diagram of the current transformer current boosting clamping device in use in the embodiment; Figure 9 This is a schematic diagram of the connection status of the current-rising equipment fixture in the prior art.

[0021] In the figure: 1. Sleeve; 101. Probe sliding hole; 102. Fixed tooth groove; 103. Socket hole; 104. Toggle lever hole; 105. Rotating disk movable hole; 106. Baffle; 107. Baffle bolt; 2. Contact probe; 201. Thin shaft; 202. Tip; 203. Probe tensioning spring; 3. Rotating disk; 301. Center shaft; 302. Left shaft; 303. Right plate; 304. Rotating disk magnet; 4. Fixed tooth; 401. Lug; 402. Fixed tooth rotating shaft; 5. Toggle lever; 501. Toggle groove ;502, bite spring; 6, fixed adjustment bolt; 7, toggle rod reset spring; 8, movable hole magnet; 9, anti-slip cam; 10, probe drainage plate; 11, lead-out wire; 1101, wire clamp; 12, stabilizing spring; 13, adsorption magnet; 14, limit pull rope; 15, probe recovery spring; 16, rotating disk recovery spring; 17, toggle rod drainage plate; 18, busbar copper bus; 19, current boosting device; 1901, current boosting device clip; 20, joint bolt; 21, busbar; 22, current transformer. DETAILED DESCRIPTION

[0022] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0023] like Figures 1-4 、 Figure 7 As shown, according to an embodiment of the present invention, a clamping device for current transformer current rise is provided, comprising a sleeve 1, wherein a sleeve 1 is provided with a sleeve hole 103 running through the left side thereof for sleeve connection of a joint bolt, and the shape of the sleeve hole 103 matches the shape of the joint bolt to be sleeved, and can have a variety of shapes to match different joint bolts; the side wall of the sleeve 1 is provided with four probe sliding holes 101 running through the left and right directions, and the probe sliding holes 101 are grouped into two and are located on both sides of the sleeve 1, and a contact probe 2 is slidably connected in the probe sliding hole 101; the contact probe 2 is made of conductive metal such as brass, and is used to extend from the probe sliding hole 101 to contact the busbar copper bar, and the busbar The copper bus is connected to the current transformer, thereby realizing the connection between the probe and the current transformer; the right side of the sleeve 1 is connected to a rotating disk 3 that can push the end of the contact probe 2 out of the probe sliding hole 101 and lock the position of the contact probe 2; the inner side wall of the sleeve 1 is provided with two oppositely arranged fixed tooth grooves 102, which are connected to the socket hole 103, and the fixed tooth groove 102 is rotatably connected to the fixed tooth 4 through the fixed tooth rotating shaft 402; when the fixed tooth 4 is rotated, it can be completely rotated into the fixed tooth groove 102 to reach a loose state; it can also be rotated to extend the fixed tooth 4 into the socket hole 103 to reach a bite state; the sleeve 1 is also connected to a toggle device for toggling the fixed tooth 4.

[0024] like Figure 1 and Figure 4 As shown, the toggle device includes a toggle rod 5, a toggle rod hole 104 is provided on the side wall of the sleeve 1, and the toggle rod hole 104 passes through the left side of the sleeve 1; the toggle rod 5 is movably connected in the toggle rod hole 104, and a toggle groove 501 is provided on the left side of the toggle rod 5; a lug 401 is provided on the fixed tooth 4, and the lug 401 is movably connected in the toggle groove 501; when the toggle groove 501 slides left and right, the toggle groove 501 will touch the lug 401, driving the fixed tooth 4 to rotate to achieve a bite or release state.

[0025] like Figure 1 and Figure 4 As shown, a bite spring 502 is provided in the middle of the toggle rod 5, and the toggle rod hole 104 passes through the right side of the sleeve 1; by providing the bite spring 502, a locking force can be provided for the fixed tooth 4; the right end of the toggle rod hole 104 is threadedly connected to the fixed adjusting bolt 6, and the toggle rod hole 104 is movably connected to the toggle rod reset spring 7, and the toggle rod reset spring 7 is located between the fixed adjusting bolt 6 and the toggle rod 5; the toggle rod reset spring 7 is used to push the toggle rod 5 back to its original position, and the fixed adjusting bolt 6 is used to adjust the strength of the toggle rod reset spring 7, and at the same time plays a limiting role.

[0026] like Figure 1 、 Figure 5 、 Figure 6 As shown, the sleeve 1 is provided with a rotating disk movable hole 105 running through the right side thereof, the rotating disk movable hole 105 and the sleeve hole 103 are separated by a baffle 106, and the baffle 106 is fixedly connected to the sleeve by a baffle bolt 107; the rotating disk 3 is slidably connected to the rotating disk movable hole 105; the right end of the rotating disk 3 is a right plate 303, the outer diameter of the right plate 303 is greater than or equal to the outer diameter of the sleeve 1, the right plate 303 is a circular plate, and the edge position has uniform tooth grooves to increase friction; the interior of the rotating disk movable hole 105 is provided with 8 movable hole magnets 8 along the circumference, and the magnetic poles of the right ends of adjacent movable hole magnets 8 are different; the left end of the rotating disk 3 is provided with a plurality of rotating disk magnets 304 along the circumference. , the magnetic poles of the left ends of adjacent rotating disk magnets 304 are different; the number of rotating disk magnets 304 is the same as the number of movable hole magnets 8, and the position of the rotating disk magnet 304 is opposite to the position of the movable hole magnet 8; the rotating disk can push the contact probe and the toggle rod, and lock the position of the contact probe and the toggle rod; the rotating disk 304 is rotatable, and when it is rotated to the point where the rotating disk magnet 304 and the movable hole magnet 8 are opposite to each other with the same poles, the movable hole magnet 8 repels the rotating disk magnet 304, and the rotating disk 3 pops out; when it is rotated to the point where the rotating disk magnet 304 and the movable hole magnet 8 are opposite to each other with different poles, the rotating disk magnet 304 and the movable hole magnet 8 are attracted, which can achieve rapid locking and opening of the rotating disk.

[0027] like Figure 1As shown, the rotating disk 3 includes a central axis 301, a left axis 302 fixedly connected to the left end of the central axis 301, and a right plate 303 fixedly connected to the right end of the central axis 301; the left axis 302 is slidably connected to the rotating disk movable hole 105, and the outer diameter of the central axis 301 is smaller than the outer diameter of the left axis 302; the right end of the inner side wall of the rotating disk movable hole 105 is fixedly connected with an anti-slip convex axis 9 for preventing the rotating disk 3 from sliding out of the rotating disk movable hole 105.

[0028] like Figure 1 As shown, a rotating disk restoring spring 16 is provided between the rotating disk 3 and the bottom of the rotating disk movable hole 105; the rotating disk restoring spring 16 is located in the rotating disk movable hole 105, and is used to fix the rotating disk 3 in the right non-working position when not working.

[0029] like Figure 1 and Figure 2 As shown, a probe drainage piece 10 and a toggle rod drainage piece 17 are fixedly connected to the side wall of the sleeve 1, the probe drainage piece 10 is in contact with the contact probe 2 but does not affect the sliding of the contact probe 2, and the toggle rod drainage piece 17 is in contact with the toggle rod 5 but does not affect the sliding of the toggle rod; the probe drainage piece 10 and the toggle rod drainage piece 17 are connected to one end of the lead-out wire 11; the other end of the lead-out wire 11 is connected to a wire clamp 1101 for connecting to the clip of the current-raising device.

[0030] like Figure 1 As shown, one end of a stabilizing spring 12 is fixedly connected to the bottom of the socket hole 103, and the other end of the stabilizing spring 12 is fixedly connected to an adsorption magnet 13, and the adsorption magnet 13 is located in the socket hole 103; a limiting pull rope 14 is connected between the adsorption magnet 13 and the bottom of the socket hole 103; by setting the adsorption magnet, when the joint bolt is made of ferromagnetic material, the joint bolt can be attracted to enhance the stability of the connection between the sleeve and the joint bolt; the stabilizing spring 12 is used to fix the adsorption magnet 13 and stabilize its position; the limiting pull rope 14 serves to limit the position of the adsorption magnet 13.

[0031] like Figure 1 As shown, a thin shaft 201 is provided in the middle of the contact probe 2, and a probe recovery spring 15 is sleeved on the outer side of the thin shaft 201; the left end of the probe recovery spring 15 is fixedly connected to the probe slide hole 101, and the right end is fixedly connected to the thin shaft 201; the function of the probe recovery spring 15 is to rebound the contact probe 2 to the inside when the clamping device is not in working state, so as to prevent damage to the contact probe 2 and prevent injury to people.

[0032] like Figure 1 As shown, a probe pressing spring 203 is provided in the middle of the contact probe 2 , and the probe pressing spring 203 plays a role of buffering and adding force; a pointed tip 202 is provided at the left end of the contact probe 2 .

[0033] like Figure 8FIG. 1 is a schematic diagram of the current transformer boosting clamping device in use in this embodiment. The L1 and L2 terminals on the primary side of the current transformer 22 are connected to the busbar copper bar 18 via connector bolts 20, and the busbar copper bar 18 is further connected to the busbar. The lead wire 11 is connected to the boosting device clamp of the current boosting device 19 via the sleeve 1 and the connector bolts 20, completing the connection between the current transformer and the boosting device. The specific connection steps are as follows: Determine the size of the joint bolt 20, and then find a clamping device that matches the size of the joint bolt 20; First, insert the sleeve 1 into the head of the joint bolt 20. If the joint bolt 20 is made of ferromagnetic material, the device will guide the bolt under the action of the internal adsorption magnet 13 and will be adsorbed on it when the position is correct; Push the rotating disk 3 in. Under the magnetic force of the rotating disk magnet 304 and the movable hole magnet 8, the rotating disk 3 will automatically rotate and align, realizing the automatic ferromagnetic adsorption of SN; firmly suck the rotating disk 3 in. When the rotating disk 3 is firmly sucked in, the toggle rod 5 is pushed in, thereby pushing the toggle slot 501 on the toggle rod 5 to realize the rotation of the fixed teeth 4. The fixed teeth 4 will protrude from the inside of the sleeve 1 and bite into the side of the joint bolt 20. According to the distance of the rotating disk 3 being sucked in, the bite spring 502 will provide a strong bite force, so that the device will firmly bite the joint bolt 20. When the rotating disk 3 is firmly sucked in, the end of the contact probe 2 is pushed out. When the contact probe 2 contacts the busbar copper bar 18, the fixing teeth 4 have already firmly engaged the joint bolt 20. When the rotating disk 3 continues to be sucked in, the contact probe 2 will be tightly contacted with the busbar copper bar 18 under the action of the probe tightening spring 203. Since the busbar copper bar 18 and the primary terminal of the current transformer 22 are in close contact, the lead wire 11 can be connected to the current transformer 22. Connect the current boosting device clips on the two measuring leads of the current boosting device 19 to the wire clips 1101 of the lead wire 11 respectively, and provide the measuring current. The current will flow through the primary terminal of the current transformer 22, thus realizing the current boosting test of the current transformer 22; After use, the rotating disk 3 is rotated. As the magnetic force between the rotating disk magnet 304 and the movable hole magnet 8 gradually changes from the original attraction of opposite poles to repulsion of the same poles; coupled with the action of the rotating disk recovery spring 16, the rotating disk 3 will automatically pop out. After the rotating disk 3 pops out, the contact probe 2 loses its thrust, and the contact probe 2 is retracted into the sleeve 1 under the action of the probe recovery spring 15, and loses contact; After the rotating disk 3 is ejected, the toggle rod 5 loses its thrust, the bite spring 502 recovers, the fixed tooth 4 loses its bite force, and under the action of the toggle rod reset spring 7, the fixed tooth 4 is rotated and retracted into the fixed tooth groove 102, losing its bite with the joint bolt 20; At this time, the clamping device can be retrieved by overcoming the suction force of the adsorption magnet 13 and pulling out the sleeve 1 with force.

[0034] like Figure 9 As shown, it is a schematic diagram of the connection between the joint bolts of the current boosting device and the current transformer in the prior art. The current transformer 22 is connected to the busbar 21 through the joint bolt 20; the current boosting device clip 1901 of the current boosting device 19 is directly clamped on the head of the joint bolt 20; the wiring is easy to fall off, causing test failure or even instrument failure.

[0035] In this embodiment, a probe is provided, which is connected to the busbar copper bar, and the busbar copper bar is connected to the current transformer, thereby realizing the connection between the probe and the current transformer; by providing a fixing tooth, a locking connection between the sleeve and the joint bolt can be realized; the sleeve and the fixing tooth are tightly connected to the joint bolt to prevent the wiring from falling off, causing test failure or even instrument failure; and a lead-out wire is provided for connection to the current-boosting equipment.

[0036] The current transformer current boosting clamping device of this embodiment will not cause the problem of wiring falling off after connection; the device is small and suitable for the small space of the central cabinet, and at the same time it is highly practical and adaptable to almost all central cabinets; the device is easy to operate, only needs to be inserted into the device and pushed against the rear, and it is also very convenient to remove, only needs to rotate the tail of the device and pull it out.

[0037] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A clamping device for current transformer current boosting, characterized in that: The invention comprises a sleeve (1), wherein a socket hole (103) is provided inside the sleeve (1) and runs through the left side thereof for socketing a joint bolt; a probe sliding hole (101) is provided on the side wall of the sleeve (1) and runs through the left and right directions; a contact probe (2) is slidably connected in the probe sliding hole (101); a rotating disk (3) is connected on the right side of the sleeve (1) and can push the end of the contact probe (2) out of the probe sliding hole (101) and lock the position of the contact probe (2); a fixed tooth groove (102) is provided on the inner side wall of the sleeve (1), the fixed tooth groove (102) is communicated with the socket hole (103), and a fixed tooth (4) is rotatably connected in the fixed tooth groove (102); when the fixed tooth (4) is rotated, it can be completely rotated into the fixed tooth groove (102) or rotated to extend the fixed tooth (4) into the socket hole (103); and a toggle device for toggling the fixed tooth (4) is also connected to the sleeve (1).

2. The current transformer current boosting clamping device according to claim 1, characterized in that: The toggle device comprises a toggle rod (5); a toggle rod hole (104) is provided on the side wall of the sleeve (1); the toggle rod hole (104) passes through the left side of the sleeve (1); the toggle rod (5) is movably connected in the toggle rod hole (104); a toggle groove (501) is provided on the left side of the toggle rod (5); a lug (401) is provided on the fixed tooth (4), and the lug (401) is movably connected in the toggle groove (501).

3. The current transformer current boosting clamping device according to claim 2, characterized in that: A bite spring (502) is provided in the middle of the toggle rod (5), and the toggle rod hole (104) passes through the right side of the sleeve (1); the right end of the toggle rod hole (104) is threadedly connected to a fixed adjustment bolt (6), and a toggle rod return spring (7) is movably connected in the toggle rod hole (104), and the toggle rod return spring (7) is located between the fixed adjustment bolt (6) and the toggle rod (5).

4. The current transformer current boosting clamping device according to claim 1, characterized in that: The sleeve (1) is provided with a rotating disk movable hole (105) running through the right side thereof, and the rotating disk (3) is slidably connected to the rotating disk movable hole (105); the right end of the rotating disk (3) is a right plate (303), and the outer diameter of the right plate (303) is greater than or equal to the outer diameter of the sleeve (1); a plurality of movable hole magnets (8) are circumferentially provided inside the rotating disk movable hole (105), and the magnetic poles of the right ends of adjacent movable hole magnets (8) are different; a plurality of rotating disk magnets (304) are circumferentially provided at the left end of the rotating disk (3), and the magnetic poles of the left ends of adjacent rotating disk magnets (304) are different; the number of the rotating disk magnets (304) is the same as the number of the movable hole magnets (8), and the position of the rotating disk magnets (304) is opposite to the position of the movable hole magnets (8).

5. The current transformer current boosting clamping device according to claim 4, characterized in that: The rotating disk (3) comprises a central axis (301), a left axis (302) fixedly connected to the left end of the central axis (301), and a right plate (303) fixedly connected to the right end of the central axis (301); the left axis (302) is slidably connected to the rotating disk movable hole (105), and the outer diameter of the central axis (301) is smaller than the outer diameter of the left axis (302); and an anti-slip convex axis (9) is fixedly connected to the right end of the inner side wall of the rotating disk movable hole (105) to prevent the rotating disk (3) from sliding out of the rotating disk movable hole (105).

6. The current transformer current boosting clamping device according to claim 5, characterized in that: A rotating disk restoring spring (16) is provided between the rotating disk (3) and the bottom of the rotating disk movable hole (105).

7. The current transformer current boosting clamping device according to claim 1, characterized in that: A probe drainage piece (10) and a toggle rod drainage piece (17) are fixedly connected to the side wall of the sleeve (1); the probe drainage piece (10) is in contact with the contact probe (2), and the toggle rod drainage piece (17) is in contact with the toggle rod (5); and the probe drainage piece (10) and the toggle rod drainage piece (17) are connected to a lead-out wire (11).

8. The current transformer current boosting clamping device according to claim 1, characterized in that: One end of a stabilizing spring (12) is fixedly connected to the bottom of the sleeve hole (103), and the other end of the stabilizing spring (12) is fixedly connected to an adsorption magnet (13). A limiting pull rope (14) is connected between the adsorption magnet (13) and the bottom of the sleeve hole (103).

9. The current transformer current boosting clamping device according to claim 1, characterized in that: A thin shaft (201) is provided in the middle of the contact probe (2), and a probe recovery spring (15) is sleeved on the outer side of the thin shaft (201); the left end of the probe recovery spring (15) is fixedly connected to the probe sliding hole (101), and the right end is fixedly connected to the thin shaft (201).

10. The current transformer current boosting clamping device according to claim 9, characterized in that: A probe tightening spring (203) is provided in the middle of the contact probe (2); and a pointed tip (202) is provided at the left end of the contact probe (2).

Citation Information

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