CN211404277U - Current transformer convenient for fixing and measuring lead - Google Patents
Current transformer convenient for fixing and measuring lead Download PDFInfo
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- CN211404277U CN211404277U CN202020329143.8U CN202020329143U CN211404277U CN 211404277 U CN211404277 U CN 211404277U CN 202020329143 U CN202020329143 U CN 202020329143U CN 211404277 U CN211404277 U CN 211404277U
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- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 4
- 238000005253 cladding Methods 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 9
- 238000004804 winding Methods 0.000 description 7
- 230000006978 adaptation Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005204 segregation Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a current transformer convenient for fixing a measuring wire, which comprises two semi-ring cores which are arranged in the same way and form a ring and semi-ring shells respectively coated on the two semi-ring cores, wherein one ends of the two semi-ring shells are hinged through an articulated piece, clamping components are respectively arranged on the two semi-ring shells in a sliding way, the two clamping components are oppositely arranged, the clamping assembly comprises a U-shaped plate arranged on the semi-annular shell and a semi-annular clamping rod arranged on the U-shaped plate, the open end of the U-shaped plate is arranged towards the other semi-annular shell, the semi-annular clamping rod is arranged on the inner side wall of the U-shaped plate at the open end, the semi-ring shell is sleeved in the U-shaped plate and located between the semi-ring-shaped clamping rod and the U-shaped plate, and a positioning assembly used for enabling the semi-ring shell to be positioned after sliding in the U-shaped plate is arranged between the U-shaped plate and the semi-ring shell. The transformer has the advantage of conveniently fixing the transformer and the wire to be tested.
Description
Technical Field
The utility model relates to a mutual-inductor field, in particular to make things convenient for current transformer of fixed measurement wire.
Background
The mutual inductor is an instrument for measuring by converting a large primary side current into a small secondary side current according to the electromagnetic induction principle. The current transformer is composed of a closed iron core and a winding. The primary winding of the measuring device has few turns and is connected in an alternating current circuit needing to be measured in series.
The existing current transformer comprises a first semi-ring shell, a second semi-ring shell hinged to the first semi-ring shell and a connecting piece used for connecting the first semi-ring shell and the second semi-ring shell, wherein the two semi-rings are spliced into a ring to form a circular ring-shaped iron core, one of the semi-rings is wound with a secondary winding, a wire to be measured penetrates through the circular ring-shaped iron core to form a primary winding with one turn number, opening and closing of the iron core can be achieved through hinging of the two semi-rings, the primary winding is not required to be connected in series after the circuit to be measured is disconnected, and the current transformer.
The defects in the prior art are as follows: the size of the ring formed by the first half ring and the second half ring is fixed, in the practical use process, the thickness of the lead is different, the alternating current transformer and the lead to be measured are not easy to fix, and the lead slides in the alternating current transformer to cause the detected current to fluctuate.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a make things convenient for fixed current transformer who measures the wire, it has convenient with the mutual-inductor with the fixed advantage of wire that awaits measuring.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides a current transformer of convenient fixed measurement wire, includes that two are the same sets up and constitute the semi-ring core of ring and the semi-ring shell of cladding respectively on two semi-ring cores, two the one end of semi-ring shell is articulated, two slide respectively on the semi-ring shell and be provided with clamping component, two clamping component sets up relatively, clamping component is including setting up in the U-shaped board of semi-ring shell and setting up in the semi-ring clamping bar of U-shaped board, the open end of U-shaped board is towards the centre of a circle position department of semi-ring shell, semi-ring clamping bar sets up in the inside wall of U-shaped board in its open end, semi-ring shell cover is located in the U-shaped board and is located between semi-ring clamping bar and the U-shaped board, be provided with between U-shaped board and the semi-ring shell and be used.
Through adopting above-mentioned technical scheme, the U-shaped plate slides, makes two U-shaped plates be close to each other, and the U-shaped plate takes the semiannular to press from both sides tight pole and remove in gliding, and the semiannular that two relative settings press from both sides tight pole and can press from both sides the measuring wire that awaits measuring that passes in the middle of two semiannular cores and press from both sides tightly, makes fixedly between U-shaped plate and the semi-annular shell through locating component, conveniently with wire and mutual-inductor relatively fixed, and then reduces the motion of the relative mutual-inductor of wire, and detection current information.
The utility model discloses further set up to: locating component is including setting up the loop bar on the semicircular shell, setting up in the sleeve pipe of U-shaped board, setting up in the locating piece and the rotation of loop bar outer wall and connecting in sheathed tube dwang, the loop bar extends in the centre of a circle direction of semicircular shell dorsad, the loop bar setting is located to the sleeve pipe cover, the locating piece sets up to a plurality of, and is a plurality of the locating piece is along the length direction align to grid of loop bar, adjacent two be formed with the constant head tank between the locating piece, sheathed tube outer wall sets up its length direction and communicates its inside hole of stepping down that just is used for stepping down the locating piece, the dwang is provided with the fixture block with constant head tank looks adaptation, the dwang rotates when parallel with the sleeve pipe, the fixture block joint is.
Through adopting above-mentioned technical scheme, rotate the dwang, the fixture block that makes the dwang and the constant head tank alternate segregation of loop bar, the loop bar is under the restriction that does not have fixture block and constant head tank, U-shaped board area sleeve pipe carries out the free slip on the loop bar, can adjust the interval between two semi-ring clamp bars from this, when sliding to suitable position department, rotate the dwang once more, make the fixture block joint once more of dwang in the constant head tank of loop bar, make and can not carry out the free slip between sleeve pipe and the loop bar, thereby make two semi-ring clamp bars press from both sides the clamp to the wire tightly.
The utility model discloses further set up to: two be provided with between the one end that its hinged end was kept away from to the semi-ring shell and be used for making closed coupling mechanism between two semi-ring shells, the one end that its hinged end was kept away from to the semi-ring shell outwards extends has first flat board, and another the one end that its hinged end was kept away from to the semi-ring shell outwards extends has the second flat board, coupling mechanism is including setting up in the spliced rod of first flat board, seting up in the dull and stereotyped inserting groove of second and being used for making the stable fixed subassembly of pegging graft in the inserting groove of spliced rod, the spliced rod is pegged graft in the inserting groove.
Through adopting above-mentioned technical scheme, when two semi-ring shells rotated to laminating each other, the inserting rod of first flat board was pegged graft in the inserting groove of second flat board to through fixed subassembly, make stable the pegging graft in the inserting groove of inserting rod, make the connection between two semi-ring shells inseparabler, reduce the influence to the current detection precision that leads to because contact failure.
The utility model discloses further set up to: the concealed groove is formed in the second flat plate, the side wall of the concealed groove is communicated with the insertion groove, the fixing assembly comprises a rotating shaft arranged in the concealed groove, a pawl arranged in the rotating shaft and a second torsion spring arranged on the pawl, the rotating shaft is rotatably connected with the second flat plate, one end of the rotating shaft extends out of the second flat plate, the width of the pawl narrows gradually along the extending direction of the pawl, one end of the wider pawl is a fixed end, the other end of the wider pawl is a clamping end, the fixed end of the pawl is fixedly connected with the rotating shaft, the rotating shaft is sleeved with the second torsion spring, one end of the second torsion spring is connected with the side wall of the concealed groove, the other end of the second torsion spring is connected with the fixed end of the pawl, the outer wall of the insertion rod is provided with a clamping groove, and the clamping end of the pawl is.
Through adopting above-mentioned technical scheme, rotate through the axis of rotation, make the axis of rotation area pawl rotate, rotate and can peg graft in the inserting groove to the inserted bar, at this moment, the axis of rotation is under the effect of second torsional spring, and the axis of rotation can rotate to initial position and take the pawl to rotate in step, and the joint end of pawl is rolled out and is hidden groove and joint in the joint inslot of inserted bar, makes the stable grafting of inserted bar in the inserting groove.
The utility model discloses further set up to: the groove bottom of the hidden groove is arc-shaped and is matched with the rotating track of the clamping end of the pawl.
Through adopting above-mentioned technical scheme, the curved setting of tank bottom of hiding the groove has made things convenient for the joint end of pawl to rotate.
The utility model discloses further set up to: and a pull rod is arranged at one end of the rotating shaft, which is positioned outside the second flat plate.
Through adopting above-mentioned technical scheme, setting up of dialling the pull rod conveniently operates the axis of rotation.
The utility model discloses further set up to: the semi-ring core is provided with a first V-shaped groove at the end part close to the hinged end of the semi-ring core, a first V-shaped bulge is arranged at the end part close to the hinged end of the semi-ring core, a second V-shaped groove is arranged at the end part far away from the hinged end of the semi-ring core, a second V-shaped bulge is arranged at the end part far away from the hinged end of the semi-ring core, when the semi-ring shells are mutually closed, the first V-shaped bulge of the semi-ring core is inserted into the first V-shaped groove of the other semi-ring core, and the second V-shaped bulge of the semi-ring core is inserted into the second V-shaped groove of the other semi-ring core.
By adopting the technical scheme, the two semi-ring shells are hinged to facilitate the lead of the circuit to be tested to pass through the two semi-ring shells
The primary winding is formed in the iron core composed of the semi-ring cores, and the secondary winding is wound on one semi-ring core to realize uninterrupted power supply
The current in the detectable circuit can increase the compactness that two semi-ring cores are connected through the cooperation of first V-arrangement arch and first V-arrangement groove and the cooperation of second V-arrangement arch and second V-arrangement groove, has reduced the influence of the current detection precision that contact failure caused between the iron core.
The utility model discloses further set up to: one side of the rotating rod, which deviates from the rotating rod and is provided with a clamping block, is provided with a pull ring.
Through adopting above-mentioned technical scheme, the setting up of pull ring is convenient to be operated the dwang.
To sum up, the utility model discloses a beneficial technological effect does: the U-shaped plate slides to make two U-shaped plates be close to each other, and the U-shaped plate takes the half-ring to press from both sides tight pole and remove in gliding while, and the half-ring that two relative settings press from both sides tight pole can press from both sides the measuring wire that awaits measuring that passes in the middle of two half-ring cores and tightly, makes through locating component and fixes between U-shaped plate and the semi-ring shell, conveniently with wire and mutual-inductor relatively fixed, and then reduces the motion of the relative mutual-inductor of wire, and detection current information is more.
Drawings
Fig. 1 is a schematic view of the overall structure of the embodiment of the present invention in a closed state;
fig. 2 is a schematic view of the overall structure of the embodiment of the present invention in an open state;
FIG. 3 is an enlarged view of portion A of FIG. 2;
FIG. 4 is a schematic illustration of a partial explosion between the semi-annular shell and the clamping assembly in an embodiment of the invention;
FIG. 5 is an enlarged view of portion B of FIG. 4;
fig. 6 is a schematic cross-sectional view between a first plate and a second plate in an embodiment of the invention;
fig. 7 is an enlarged view of a portion C in fig. 6.
In the figure, 1, a semi-ring shell; 11. a first plate; 12. a second plate; 121. hiding the groove; 21. a first V-shaped groove; 22. a first V-shaped protrusion; 23. a second V-shaped groove; 24. a second V-shaped protrusion; 31. a U-shaped plate; 311. a top plate; 312. a side plate; 32. a semi-annular clamping bar; 41. a loop bar; 42. a sleeve; 421. a hole of abdication; 422. a bump; 43. positioning blocks; 431. positioning a groove; 44. rotating the rod; 441. a clamping block; 442. a pull ring; 5. hinging a shaft; 51. a first torsion spring; 61. a plug rod; 611. a clamping groove; 62. inserting grooves; 631. a rotating shaft; 6311. pulling a pull rod; 632. a pawl; 633. a second torsion spring.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, for the utility model discloses a make things convenient for current transformer of fixed measurement wire, including two semi-ring shells 1 and two semi-ring cores (not shown in the figure), two semi-ring shells 1 all are the half toroidal, and the one end of semi-ring shell 1 is articulated each other with the one end of second semi-ring shell 1 and is fixed, and two semi-ring cores are located the inside of two semi-ring shells 1 respectively, the inside looks adaptation of semi-ring core and semi-ring shell 1. Two semi-ring shells 1 rotate along the pin joint, and the free end of two semi-ring shells 1 is laminated each other, forms complete ring.
Referring to fig. 2 and 3, a plurality of first V-shaped grooves 21 are formed in the end portion of one end of each half ring core close to the hinge point, a plurality of first V-shaped protrusions 22 corresponding to the first V-shaped grooves 21 are welded to the end portion of one end of the other half ring core close to the hinge point, and when the two half ring shells 1 are closed, the first V-shaped protrusions 22 of the half ring cores are inserted into the first V-shaped grooves 21 of the other half ring cores.
A plurality of second V-arrangement grooves 23 have been seted up to the tip that its hinged end was kept away from to half ring core, and a plurality of second V-arrangement grooves 23 evenly arrange, and the tip welding that its hinged end was kept away from to half ring core has a plurality of second V-arrangement archs 24 corresponding with second V-arrangement groove 23, and when two half ring shells 1 were closed each other, the protruding 24 of second V-arrangement of half ring core was pegged graft in second V-arrangement groove 23 of half ring core.
Referring to fig. 4 and 5, the two semi-ring shells 1 are respectively provided with a clamping assembly in a sliding manner, the two clamping assemblies are arranged oppositely, the clamping assembly comprises a U-shaped plate 31 and a semi-ring clamping rod 32, the U-shaped plate 31 comprises a top plate 311 and two side plates 312, the two side plates 312 are located on two sides of the semi-ring shell 1 in the width direction, a gap is left between the side plates 312 and the outer wall of the semi-ring shell 1, and the top plate 311 is located above the semi-ring shell 1 and welded to the upper ends of the two side plates 312. The number of the semicircular clamping rods 32 is two, the two semicircular clamping rods 32 correspond to the two side plates 312 one by one, the two semicircular clamping rods 32 are respectively located on one side of the two side plates 312 opposite to each other and are welded, and the bending direction of the semicircular clamping rods 32 is consistent with that of the semicircular shell 1.
A positioning assembly for positioning the semi-ring shell 1 after sliding in the U-shaped plate 31 is arranged between the top plate 311 of the U-shaped plate 31 and the semi-ring shell 1, the positioning assembly comprises a sleeve rod 41, a sleeve 42, a positioning block 43 and a rotating rod 44, one end of the sleeve rod 41 is welded with the outer curved surface of the semi-ring shell 1, the sleeve rod 41 extends in the direction away from the center of the semi-ring shell 1, one end of the sleeve 42 is welded with one side of the top plate 311 facing the semi-ring shell 1, and the other end of the sleeve 42 is sleeved on the sleeve rod 41. The positioning blocks 43 are in the shape of a triangular prism, the positioning blocks 43 are arranged in a plurality of numbers, the positioning blocks 43 are uniformly arranged along the length direction of the outer wall of the loop bar 41, and a positioning groove 431 is formed between every two adjacent positioning blocks 43. The outer wall of sleeve 42 has seted up the hole of stepping down 421, and the hole of stepping down 421 is linked together with the inside of sleeve 42, and the hole of stepping down 421 extends along the length direction of sleeve 42, and when loop bar 41 slided along the length direction of sleeve 42, the locating piece 43 of loop bar 41 corresponded with the hole of stepping down 421 of sleeve 42.
The lateral wall welding that sleeve pipe 42 is close to the one end of roof 311 has two lugs 422, two lugs 422 set up along sleeve pipe 42's width direction interval, dwang 44's one end is located between two lugs 422 and rotates through articulated shaft 5 and two lugs 422 and be connected, articulated shaft 5's axis direction is unanimous with sleeve pipe 42's width direction, the rotation hole has been seted up respectively to one side that two lugs 422 are relative, articulated shaft 5's both ends are worn to locate respectively two lugs 422's rotation downthehole and are rotated with lug 422 and be connected, the fixed orifices has been seted up to the tip that dwang 44 is located between two lugs 422, articulated shaft 5 wears to locate dwang 44's fixed orifices and fixed orifices. The length direction of dwang 44 is unanimous with the length direction of sleeve pipe 42, and dwang 44 has fixture block 441 towards one side welding of sleeve pipe 42, and fixture block 441 is a plurality of, and the length direction align to grid of dwang 44 is followed to a plurality of fixture blocks 441, fixture block 441 and constant head tank 431 looks adaptation, and dwang 44 rotates to when with sleeve pipe 42 parallel state, and fixture block 441 joint is in constant head tank 431, and one side welding that dwang 44 deviates from sleeve pipe 42 has pull ring 442.
Two first torsion springs 51 are sleeved on the hinge shaft 5, the two first torsion springs 51 are respectively located on two sides of the rotating rod 44 along the width direction of the rotating rod, one end of each first torsion spring 51 is fixedly connected with the hinge shaft 5, and the other end of each first torsion spring 51 is fixedly connected with the top plate 311.
Referring to fig. 2, a connecting mechanism for closing the two half-ring shells 1 is arranged between the ends of the two half-ring shells 1 away from the hinged end, a first flat plate 11 extends outwards from the end of the half-ring shell 1 away from the hinged end, a second flat plate 12 extends outwards from the end of the other half-ring shell 1 away from the hinged end, and when the two half-ring shells 1 are closed, the first flat plate 11 is attached to the second flat plate 12.
The connecting mechanism comprises an inserting rod 61, an inserting groove 62 and a fixing component, one end of the inserting rod 61 is welded on one side of the first flat plate 11 close to the second flat plate 12, the inserting rod 61 is perpendicular to the first flat plate 11, the inserting groove 62 is arranged on the second flat plate 12, and when the first flat plate 11 is attached to the second flat plate 12, the inserting rod 61 is inserted into the inserting groove 62.
Referring to fig. 6 and 7, a hidden groove 121 is formed in the second plate 12, a side wall of the hidden groove 121 is communicated with the insertion groove 62 (see fig. 2), the fixing component is installed in the hidden groove 121, the fixing component includes a rotation shaft 631, a pawl 632 and a second torsion spring 633, the rotation shaft 631 is located in the hidden groove 121, shaft holes are respectively formed in two opposite side walls of the hidden groove 121, and two ends of the rotation shaft 631 are respectively located in the shaft holes and are rotatably connected with the shaft holes.
Referring to fig. 2 and 7, one end of the rotating shaft 631 extends out of the second plate 12, a dial link 6311 is welded to the end of the rotating shaft 631 located outside the second plate 12, and the dial link 6311 is perpendicular to the rotating shaft 631.
The width of pawl 632 narrows down gradually along its extending direction, and the one end of pawl 632 broad is stiff end, the other end is the joint end, and the through hole has been seted up to the stiff end of pawl 632, and axis of rotation 631 wears to locate the through hole and with the stiff end fixed connection of pawl 632, and joint groove 611 has been seted up to the outer wall of inserted bar 61, and the joint end of pawl 632 and the joint groove 611 looks adaptation of inserted bar 61. The engaging end of the pawl 632 engages with the engaging groove 611 of the insertion rod 61, and the bottom of the hidden groove 121 is arc-shaped and matches with the rotating track of the engaging end of the pawl 632.
The second torsion spring 633 is located between the side wall of the hidden slot 121 and the fixed end of the pawl 632, the second torsion spring 633 is sleeved on the rotating shaft 631, one end of the second torsion spring 633 is fixedly connected with the side wall of the hidden slot 121, and the other end is fixedly connected with the fixed end of the pawl 632.
The implementation principle of the embodiment is as follows: pass the wire in the ring iron core that two semi-ring cores formed, rotate dwang 44, make dwang 44 rotate towards the direction of keeping away from loop bar 41, fixture block 441 of dwang 44 and the constant head tank 431 of loop bar 41 alternate segregation, at this moment, remove curb plate 312 and sleeve pipe 42 slide on loop bar 41 simultaneously, make two semi-ring clamping bar 32 be close to each other, and then press from both sides the wire that passes the ring iron core, press from both sides tightly the back, loosen dwang 44, dwang 44 is under the effect of first torsional spring 51, dwang 44 is automatic to rotate towards the direction of being close to loop bar 41 and make fixture block 441 joint in the constant head tank 431 of loop bar 41 once more, make loop bar 41 and sleeve pipe 42 relatively fixed, thereby make semi-ring clamping bar 32 can press from both sides the wire that passes the ring iron core, avoid mutual-inductor and wire to carry out relative motion, reduce the undulant of the.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a current transformer of convenient fixed measurement wire, includes that two are the same sets up and constitute the semi-ring core of ring and respectively the cladding semi-ring shell (1) on two semi-ring cores, two the one end of semi-ring shell (1) is articulated, its characterized in that: two it is provided with clamping component, two to slide respectively on semi-ring shell (1) clamping component sets up relatively, clamping component is including setting up in U-shaped plate (31) of semi-ring shell (1) and setting up in semi-ring clamp pole (32) of U-shaped plate (31), the open end of U-shaped plate (31) is towards the centre of a circle position department of semi-ring shell (1), semi-ring clamp pole (32) set up in U-shaped plate (31) in the inside wall of its open end, semi-ring shell (1) cover is located in U-shaped plate (31) and is located between semi-ring clamp pole (32) and U-shaped plate (31), be provided with between U-shaped plate (31) and semi-ring shell (1) and be used for making semi-ring shell (1) slide the back locating component that carries out the location in U-shaped plate (31).
2. The current transformer convenient for fixing the measuring wire according to claim 1, characterized in that: the positioning assembly comprises a sleeve rod (41) arranged on the semicircular shell (1), a sleeve (42) arranged on the U-shaped plate (31), a positioning block (43) arranged on the outer wall of the sleeve rod (41) and a rotating rod (44) rotatably connected to the sleeve (42), wherein the sleeve rod (41) extends in the direction away from the circle center of the semicircular shell (1), the sleeve rod (41) is sleeved with the sleeve (42), the positioning block (43) is arranged in a plurality of positioning blocks (43), the positioning blocks (43) are uniformly arranged along the length direction of the sleeve rod (41), two adjacent positioning grooves (431) are formed between the positioning blocks (43), the outer wall of the sleeve rod (42) is provided with a yielding hole (421) which is communicated with the inner part of the outer wall of the sleeve rod (42) and is used for yielding the positioning block (43), the rotating rod (44) is provided with a clamping block (441) matched with the positioning grooves (431), when the rotating rod (44) rotates to be parallel to the sleeve (42), the clamping block (441) is clamped in the positioning groove (431).
3. The current transformer convenient for fixing the measuring wire according to claim 1, characterized in that: two be provided with between the one end of keeping away from its hinged end of semi-ring shell (1) and be used for making closed coupling mechanism between two semi-ring shells (1), the one end that its hinged end was kept away from in semi-ring shell (1) outwards extends has first flat board (11), another the one end that its hinged end was kept away from in semi-ring shell (1) outwards extends has second flat board (12), coupling mechanism is including setting up in bayonet joint pole (61) of first flat board (11), seting up in bayonet joint groove (62) of second flat board (12) and being used for making stable the pegging graft of bayonet joint pole (61) fixed subassembly in bayonet joint groove (62), bayonet joint pole (61) are pegged graft in bayonet joint groove (62).
4. The current transformer convenient for fixing the measuring wire according to claim 3, characterized in that: hidden groove (121) have been seted up to the inside of second flat board (12), the lateral wall and the inserting groove (62) of hidden groove (121) are linked together, fixed subassembly is including setting up axis of rotation (631) in hidden groove (121), setting up in pawl (632) of axis of rotation (631) and setting up in second torsional spring (633) of pawl (632), axis of rotation (631) are rotated with second flat board (12) and are connected, the one end of axis of rotation (631) extends to outside second flat board (12), the width of pawl (632) narrows down gradually along its extending direction, the one end of pawl (632) broad is the stiff end, the other end is the joint end, the stiff end and the axis of rotation (631) fixed connection of pawl (632), axis of rotation (631) are located to second torsional spring (633) cover, the one end and the lateral wall of hidden groove (121) of second torsional spring (633) are connected, The other end of the connecting rod is connected with the fixed end of the pawl (632), the outer wall of the inserting rod (61) is provided with a clamping groove (611), and the clamping end of the pawl (632) is clamped in the clamping groove (611) of the inserting rod (61) after rotating out of the hidden groove (121).
5. The current transformer convenient for fixing the measuring wire according to claim 4, characterized in that: the groove bottom of the hidden groove (121) is arc-shaped and is matched with the rotating track of the clamping end of the pawl (632).
6. The current transformer convenient for fixing the measuring wire according to claim 4, characterized in that: and one end of the rotating shaft (631) positioned outside the second flat plate (12) is provided with a toggle rod (6311).
7. The current transformer convenient for fixing the measuring wire according to claim 1, characterized in that: the end part of the semi-ring core close to the hinged end of the semi-ring core is provided with a first V-shaped groove (21), the end part of the semi-ring core close to the hinged end of the semi-ring core is provided with a first V-shaped protrusion (22), the end part of the semi-ring core far away from the hinged end of the semi-ring core is provided with a second V-shaped protrusion (23), the end part of the semi-ring core far away from the hinged end of the semi-ring core is provided with a second V-shaped protrusion (24), when the semi-ring shells (1) are mutually closed, the first V-shaped protrusion (22) of the semi-ring core is inserted into the other first V-shaped groove (21) of the semi-ring core, and the second V-shaped protrusion (24) of the semi-ring core is inserted into.
8. The current transformer convenient for fixing the measuring wire as claimed in claim 2, wherein: and a pull ring (442) is arranged on one side of the rotating rod (44) deviating from the clamping block (441).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020329143.8U CN211404277U (en) | 2020-03-16 | 2020-03-16 | Current transformer convenient for fixing and measuring lead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020329143.8U CN211404277U (en) | 2020-03-16 | 2020-03-16 | Current transformer convenient for fixing and measuring lead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211404277U true CN211404277U (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020329143.8U Expired - Fee Related CN211404277U (en) | 2020-03-16 | 2020-03-16 | Current transformer convenient for fixing and measuring lead |
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| Country | Link |
|---|---|
| CN (1) | CN211404277U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113030838A (en) * | 2021-03-25 | 2021-06-25 | 河南省计量科学研究院 | Electric energy meter calibrating installation of online area load examination |
| CN114627605A (en) * | 2022-03-22 | 2022-06-14 | 河南浙之锐科技有限公司 | Multifunctional electrical fire detector |
-
2020
- 2020-03-16 CN CN202020329143.8U patent/CN211404277U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113030838A (en) * | 2021-03-25 | 2021-06-25 | 河南省计量科学研究院 | Electric energy meter calibrating installation of online area load examination |
| CN113030838B (en) * | 2021-03-25 | 2024-02-02 | 河南省计量科学研究院 | Electric energy meter calibrating device for on-line on-load calibration |
| CN114627605A (en) * | 2022-03-22 | 2022-06-14 | 河南浙之锐科技有限公司 | Multifunctional electrical fire detector |
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