CN215955053U - Current transformer fixing device - Google Patents
Current transformer fixing device Download PDFInfo
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- CN215955053U CN215955053U CN202121850263.3U CN202121850263U CN215955053U CN 215955053 U CN215955053 U CN 215955053U CN 202121850263 U CN202121850263 U CN 202121850263U CN 215955053 U CN215955053 U CN 215955053U
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- mounting base
- side wall
- electric telescopic
- fixedly connected
- current transformer
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- 238000009434 installation Methods 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims 1
- 238000004804 winding Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
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- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
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Abstract
The utility model discloses a current transformer fixing device, and relates to the technical field of current transformers; a driving shaft is arranged between the upper inner side wall and the lower inner side wall of the mounting base and positioned at the lower side of the first electric telescopic rod, the upper end and the lower end of the driving shaft are respectively and rotatably connected into the upper inner side wall and the lower inner side wall of the mounting base through bearings, a sun gear is fixedly sleeved on the driving shaft, the left side and the right side of the sun gear are respectively engaged with a planetary gear, driven shafts are fixedly penetrated in the planetary gears, and the upper end and the lower end of each driven shaft are respectively and rotatably connected into the upper inner side wall and the lower inner side wall of the mounting base through bearings; the position of the current transformer can be flexibly adjusted, the installation is simple, and the workload of workers is reduced.
Description
Technical Field
The utility model relates to the technical field of current transformers, in particular to a fixing device for a current transformer.
Background
The current transformer is an instrument for converting a large primary side current into a small secondary side current according to the electromagnetic induction principle to measure, and consists of a closed iron core and a winding, wherein the number of turns of the primary winding of the current transformer is small, and the current transformer is connected in series in a circuit of the current to be measured, so that all the current of the circuit always flows through the current transformer, the number of turns of the secondary winding is large, the secondary winding is connected in series in a measuring instrument and a protection loop, and when the current transformer works, the secondary loop of the current transformer is always closed, so that the impedance of the series coil of the measuring instrument and the protection loop is small, and the working state of the current transformer is close to short circuit.
Current transformer fixing device among the prior art often the rigidity and through screw fixed mounting, inconvenient adjustment current transformer's position, and the installation is loaded down with trivial details, increases staff's work load.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a current transformer fixing device with reasonable design aiming at the defects and shortcomings of the prior art, the current transformer fixing device can flexibly adjust the position of a current transformer, is simple to install and reduces the workload of workers.
In order to achieve the purpose, the utility model adopts the following technical scheme: the electric telescopic box comprises a supporting plate, a first electric telescopic rod, a connecting shaft, a mounting base, a box door and a second fixing plate; a box door is movably arranged in the front side opening of the mounting base through a hinge, and a rotating hole is formed in the box door; the top wall of the mounting base is fixedly connected with a first electric telescopic rod, the upper end of the first electric telescopic rod is fixedly connected with a connecting shaft, and the upper end of the connecting shaft is rotatably connected into the bottom wall of the supporting plate through a bearing; a second fixing plate is fixedly arranged on the top wall of the supporting plate in a left-right symmetrical mode, and a current transformer is arranged between the second fixing plates; the device also comprises a driven shaft, a planetary gear, a gear frame, a pulley, a sun gear, a driving shaft, a screw and a clamping plate; a driving shaft is arranged between the upper inner side wall and the lower inner side wall of the mounting base and positioned at the lower side of the first electric telescopic rod, the upper end and the lower end of the driving shaft are respectively and rotatably connected into the upper inner side wall and the lower inner side wall of the mounting base through bearings, a sun gear is fixedly sleeved on the driving shaft, the left side and the right side of the sun gear are respectively engaged with a planetary gear, driven shafts are fixedly penetrated in the planetary gears, and the upper end and the lower end of each driven shaft are respectively and rotatably connected into the upper inner side wall and the lower inner side wall of the mounting base through bearings; the left and right planetary gears are meshed with the gear frame, and the planetary gears are rotatably arranged in the gear frame; a shifting sheet is fixedly sleeved on the part of the driving shaft, which is positioned on the lower side of the sun gear, the shifting sheet is rotatably arranged in the rotating hole, and the front side of the shifting sheet passes through the rotating hole and then extends to the front side of the box door; a first connecting rod is movably arranged on the left side and the right side of the gear frame in a penetrating mode, pulleys are fixedly connected to the lower end of the first connecting rod, an annular sliding groove is formed in the inner bottom wall of the mounting base, and the pulleys are movably arranged in the annular sliding groove; arc-shaped through holes are symmetrically formed in the left and right of the top wall of the mounting base, the upper end of the first connecting rod penetrates through the arc-shaped through holes and the supporting plate from bottom to top in sequence and is fixedly connected to the bottom wall of the first baffle, and the first connecting rod is movably arranged in the supporting plate in a penetrating mode; a moving through hole and a threaded hole are sequentially formed in the second fixing plate from top to bottom; the threaded hole is rotatably connected with a screw rod, the inner end of the screw rod is rotatably connected into the outer side wall of the clamping plate through a bearing, and the inner side wall of the clamping plate is fixedly connected with an anti-skid pad; a second connecting rod is movably arranged in the moving through hole in a penetrating manner, the outer ends of the second connecting rods are fixedly connected with second baffles, and the inner ends of the second connecting rods are fixedly connected to the outer side wall of the clamping plate; the first electric telescopic rod is externally connected with a power supply through a wire.
Preferably, the outer ends of the screws are fixedly connected with hand screws.
Preferably, the top wall of installation base is located the fixed plate of part fixedly connected with several in the electric telescopic handle outside No. one, equal fixedly connected with electric telescopic handle No. two on the lateral wall of fixed plate No. one, the equal fixedly connected with connecting block in outer end of electric telescopic handle No. two, electric telescopic handle No. two passes through wire external power supply.
Preferably, equal fixedly connected with arc limiting plate on the lateral wall of connecting block, the spacing groove has all been seted up to the part that lies in between layer board and the installation base roof on the connecting rod, and the equal activity of arc limiting plate is inserted and is located the spacing groove.
Compared with the prior art, the utility model has the beneficial effects that: the current transformer fixing device provided by the utility model can flexibly adjust the position of the current transformer, is simple to install, reduces the workload of workers, and has the advantages of reasonable arrangement, high practicability and the like.
Description of the drawings:
fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the internal structure of the present invention.
FIG. 3 is a schematic structural diagram of the connection relationship among the first connecting rod, the driven shaft, the planetary gear, the sun gear and the driving shaft in the utility model.
Fig. 4 is a schematic structural diagram of the connection relationship among the first connecting rod, the arc-shaped through hole, the arc-shaped limiting plate, the connecting block, the second electric telescopic rod, the first fixing plate and the mounting base in the utility model.
Fig. 5 is an enlarged view of a portion a in fig. 2.
Description of reference numerals:
connecting rod 1, baffle 2, current transformer 3, layer board 4, driven shaft 5, planetary gear 6, arc through-hole 7, tooth frame 8, pulley 9, annular chute 10, sun gear 11, plectrum 12, driving shaft 13, electric telescopic handle 14, connecting axle 15, spacing groove 16, arc limiting plate 17, connecting block 18, electric telescopic handle 19 No. two, fixed plate 20 No. one, installation base 21, rotatory hole 22, chamber door 23, connecting rod 24 No. two, fixed plate 25 No. two, baffle 26 No. two, the hand is twisted 27, screw hole 28, screw rod 29, slipmat 30, splint 31, removal through-hole 32.
The specific implementation mode is as follows:
the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings, and the preferred embodiments in the description are only examples, and all other embodiments obtained by those skilled in the art without any inventive work belong to the protection scope of the present invention.
As shown in fig. 1 to 5, the following technical solutions are adopted in the present embodiment: the electric telescopic handle comprises a supporting plate 4, a first electric telescopic rod 14, a connecting shaft 15, a mounting base 21, a box door 23 and a second fixing plate 25; a box door 23 is movably hinged in the front side opening of the mounting base 21 through a hinge, and a rotating hole 22 is formed in the box door 23; the top wall of the mounting base 21 is riveted with a first electric telescopic rod 14 through a bolt, the upper end of the first electric telescopic rod 14 is riveted with a connecting shaft 15 through a bolt, and the upper end of the connecting shaft 15 is rotatably connected into the bottom wall of the supporting plate 4 through a bearing; a second fixing plate 25 is welded on the top wall of the supporting plate 4 in a bilateral symmetry mode, and a current transformer 3 is arranged between the second fixing plates 25; it also comprises a driven shaft 5, a planetary gear 6, a gear frame 8, a pulley 9, a sun gear 11, a driving shaft 13, a screw 29 and a clamping plate 31; a driving shaft 13 is arranged between the upper inner side wall and the lower inner side wall of the mounting base 21 and positioned on the lower side of the first electric telescopic rod 14, the upper end and the lower end of the driving shaft 13 are respectively and rotatably connected into the upper inner side wall and the lower inner side wall of the mounting base 21 through bearings, a sun gear 11 is sleeved on the driving shaft 13 and fixed through a positioning pin, the left side and the right side of the sun gear 11 are respectively engaged with a planetary gear 6, driven shafts 5 are respectively arranged in the planetary gears 6 in a penetrating manner and fixed through the positioning pins, and the upper end and the lower end of each driven shaft 5 are respectively and rotatably connected into the upper inner side wall and the lower inner side wall of the mounting base 21 through bearings; the planet gears 6 on the left side and the right side are meshed with the gear frame 8, and the planet gears 6 are rotatably arranged inside the gear frame 8; a shifting piece 12 is fixedly sleeved on the part of the driving shaft 13, which is positioned on the lower side of the sun gear 11, the shifting piece 12 is rotatably arranged in the rotating hole 22, and the front side of the shifting piece 12 passes through the rotating hole 22 and then extends to the front side of the box door 23; a first connecting rod 1 is movably arranged on the left side and the right side of the gear frame 8 in a penetrating mode, pulleys 9 are riveted to the lower end of the first connecting rod 1 through bolts, an annular sliding groove 10 is formed in the inner bottom wall of the installation base 21, and the pulleys 9 are movably arranged in the annular sliding groove 10; arc-shaped through holes 7 are symmetrically formed in the left and right of the top wall of the mounting base 21, the upper end of the first connecting rod 1 penetrates through the arc-shaped through holes 7 and the supporting plate 4 from bottom to top in sequence and then is fixedly connected to the bottom wall of the first baffle plate 2, and the first connecting rod 1 is movably arranged in the supporting plate 4 in a penetrating mode; a moving through hole 32 and a threaded hole 28 are sequentially formed in the second fixing plate 25 from top to bottom; a screw 29 is rotatably connected in the threaded hole 28, the inner end of the screw 29 is rotatably connected in the outer side wall of the clamping plate 31 through a bearing, and anti-skid pads 30 are fixedly glued on the inner side wall of the clamping plate 31; the outer ends of the screw rods 29 are welded with hand screws 27; a second connecting rod 24 is movably arranged in the moving through hole 32 in a penetrating manner, the outer end of the second connecting rod 24 is riveted with a second baffle 26 through a bolt, and the inner end of the second connecting rod 24 is riveted on the outer side wall of the clamping plate 31 through a bolt; the part, located on the outer side of the first electric telescopic rod 14, of the top wall of the mounting base 21 is riveted with four first fixing plates 20 through bolts, the outer side walls of the first fixing plates 20 are all riveted with second electric telescopic rods 19 through bolts, the outer ends of the second electric telescopic rods 19 are all riveted with connecting blocks 18 through bolts, the outer side walls of the connecting blocks 18 are all riveted with arc-shaped limiting plates 17 through bolts, the parts, located between the supporting plate 4 and the top wall of the mounting base 21, of the first connecting rod 1 are all provided with limiting grooves 16, and the arc-shaped limiting plates 17 are all movably inserted into the limiting grooves 16; the first electric telescopic rod 14 and the second electric telescopic rod 19 are both externally connected with a power supply through wires.
The working principle of the specific embodiment is as follows: when the current transformer fixing device is used, the current transformer 3 is placed between the second fixing plates 25 on the supporting plate 4, the left hand screw 27 and the right hand screw 27 are rotated, the screw 29 is driven by the hand screws 27 to rotate inwards, the clamping plate 31 is driven by the screw 29 to move inwards, and the connecting rod 24 is driven by the clamping plate 31 to move leftwards along the moving through hole 32; until the anti-skid pad 30 on the clamping plate 31 is contacted with the outer side wall of the current transformer 3, the current transformer is positioned and clamped; when the height of the current transformer 3 needs to be adjusted, the first electric telescopic rod 14 is opened, the first electric telescopic rod 14 drives the connecting shaft 15 to move upwards, the connecting shaft 15 drives the supporting plate 4 to move upwards along the first connecting rod 1, and the first electric telescopic rod 14 is closed after the supporting plate moves to the required height; when the fixed position of the current transformer 3 needs to be adjusted, the poking piece 12 is rotated, the poking piece 12 drives the driving shaft 13 to rotate, the driving shaft 13 drives the sun gear 11 to rotate, the sun gear 11 drives the left and right planetary gears 6 and the driven shaft 5 to rotate, the left and right planetary gears 6 drive the toothed frame 8 to rotate together, the toothed frame 8 drives the first connecting rod 1 to rotate, the first connecting rod 1 drives the pulley 9 to rotate along the annular chute 10, meanwhile, the first connecting rod 1 drives the supporting plate 4 to rotate around the connecting shaft 15, the supporting plate 4 drives the current transformer 3 on the supporting plate 4 to rotate, and after the current transformer 3 rotates to a proper angle, the sun gear 11 stops rotating; open No. two electric telescopic handle 19, No. two electric telescopic handle 19 drive connecting block 18 and think the outside and remove, and connecting block 18 drives arc limiting plate 17 and removes to the outside, until arc limiting plate 17 inserts and establishes spacing groove 16, realizes the spacing fixed to connecting rod 1, increases the stability of device.
After adopting above-mentioned structure, this embodiment's beneficial effect is as follows:
1. the current transformer 3 can be limited and clamped through the arrangement of the second connecting rod 24, the second fixing plate 25, the second baffle 26, the hand screw 27, the screw 29, the anti-skid pad 30 and the clamping plate 31, and the installation is convenient;
2. the height of the current transformer 3 can be adjusted by arranging the supporting plate 4, the first electric telescopic rod 14 and the connecting shaft 15; the angle of the current transformer 3 can be adjusted by arranging a first connecting rod 1, a supporting plate 4, a driven shaft 5, a planetary gear 6, a gear frame 8, a pulley 9, a sun gear 11, a shifting piece 12 and a driving shaft 13;
3. through setting up arc limiting plate 17, connecting block 18, No. two electric telescopic handle 19 and fixed plate 20, can realize fixed to the spacing of connecting rod 1, increase stability.
It will be appreciated by those skilled in the art that modifications and equivalents may be made to the embodiments described above, and that various modifications, equivalents, improvements and the like may be made without departing from the spirit and scope of the utility model.
Claims (4)
1. A fixing device for a current transformer comprises a supporting plate (4), a first electric telescopic rod (14), a connecting shaft (15), a mounting base (21), a box door (23) and a second fixing plate (25); a box door (23) is movably arranged in the front side opening of the mounting base (21) through a hinge, and a rotating hole (22) is formed in the box door (23); the top wall of the mounting base (21) is fixedly connected with a first electric telescopic rod (14), the upper end of the first electric telescopic rod (14) is fixedly connected with a connecting shaft (15), and the upper end of the connecting shaft (15) is rotatably connected into the bottom wall of the supporting plate (4) through a bearing; a second fixing plate (25) is fixedly arranged on the top wall of the supporting plate (4) in a left-right symmetrical mode, and a current transformer (3) is arranged between the second fixing plates (25); the method is characterized in that: the device also comprises a driven shaft (5), a planetary gear (6), a gear frame (8), a pulley (9), a sun gear (11), a driving shaft (13), a screw (29) and a clamping plate (31); a driving shaft (13) is arranged between the upper inner side wall and the lower inner side wall of the mounting base (21) and positioned on the lower side of the first electric telescopic rod (14), the upper end and the lower end of the driving shaft (13) are respectively and rotatably connected into the upper inner side wall and the lower inner side wall of the mounting base (21) through bearings, a sun gear (11) is fixedly sleeved on the driving shaft (13), planetary gears (6) are respectively meshed with the left side and the right side of the sun gear (11), driven shafts (5) are respectively and fixedly arranged in the planetary gears (6), and the upper end and the lower end of each driven shaft (5) are respectively and rotatably connected into the upper inner side wall and the lower inner side wall of the mounting base (21) through bearings; the planetary gears (6) on the left side and the right side are meshed with the gear frame (8), and the planetary gears (6) are rotatably arranged inside the gear frame (8); a shifting sheet (12) is fixedly sleeved on the part of the driving shaft (13) positioned on the lower side of the sun gear (11), the shifting sheet (12) is rotatably arranged in the rotating hole (22), and the front side of the shifting sheet (12) passes through the rotating hole (22) and then extends to the front side of the box door (23); a first connecting rod (1) is movably arranged on the left side and the right side of the gear frame (8) in a penetrating mode, pulleys (9) are fixedly connected to the lower end of the first connecting rod (1), an annular sliding groove (10) is formed in the inner bottom wall of the mounting base (21), and the pulleys (9) are movably arranged in the annular sliding groove (10); arc-shaped through holes (7) are symmetrically formed in the left and right of the top wall of the mounting base (21), the upper ends of the first connecting rods (1) sequentially penetrate through the arc-shaped through holes (7) and the supporting plate (4) from bottom to top and then are fixedly connected to the bottom wall of the first baffle plate (2), and the first connecting rods (1) are movably arranged in the supporting plate (4) in a penetrating mode; a moving through hole (32) and a threaded hole (28) are sequentially formed in the second fixing plate (25) from top to bottom; a screw rod (29) is rotationally connected in the threaded hole (28), the inner end of the screw rod (29) is rotationally connected in the outer side wall of the clamping plate (31) through a bearing, and anti-skid pads (30) are fixedly connected on the inner side wall of the clamping plate (31); a second connecting rod (24) is movably arranged in the movable through hole (32) in a penetrating manner, the outer ends of the second connecting rods (24) are fixedly connected with a second baffle (26), and the inner ends of the second connecting rods (24) are fixedly connected to the outer side wall of the clamping plate (31); the first electric telescopic rod (14) is externally connected with a power supply through a lead.
2. A current transformer fixing device according to claim 1, wherein: the outer ends of the screw rods (29) are fixedly connected with hand screws (27).
3. A current transformer fixing device according to claim 1, wherein: the mounting base is characterized in that a plurality of fixing plates (20) are fixedly connected to the part, located on the outer side of the first electric telescopic rod (14), of the top wall of the mounting base (21), two electric telescopic rods (19) are fixedly connected to the outer side wall of each fixing plate (20), connecting blocks (18) are fixedly connected to the outer ends of the two electric telescopic rods (19), and the two electric telescopic rods (19) are externally connected with a power supply through wires.
4. A current transformer fixing device according to claim 3, wherein: equal fixedly connected with arc limiting plate (17) on the lateral wall of connecting block (18), spacing groove (16) have all been seted up to the part that lies in between layer board (4) and installation base (21) roof on connecting rod (1), and arc limiting plate (17) are all movable to be inserted and are located spacing groove (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121850263.3U CN215955053U (en) | 2021-08-09 | 2021-08-09 | Current transformer fixing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121850263.3U CN215955053U (en) | 2021-08-09 | 2021-08-09 | Current transformer fixing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215955053U true CN215955053U (en) | 2022-03-04 |
Family
ID=80435863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121850263.3U Expired - Fee Related CN215955053U (en) | 2021-08-09 | 2021-08-09 | Current transformer fixing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215955053U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117423528A (en) * | 2023-12-01 | 2024-01-19 | 国网四川省电力公司营销服务中心 | Current transformer for electric energy meter and manufacturing method thereof |
-
2021
- 2021-08-09 CN CN202121850263.3U patent/CN215955053U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117423528A (en) * | 2023-12-01 | 2024-01-19 | 国网四川省电力公司营销服务中心 | Current transformer for electric energy meter and manufacturing method thereof |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220304 |