CN219998031U - Fixed bus type current transformer - Google Patents

Abstract

The utility model discloses a fixed bus type current transformer which comprises a supporting plate, a connector, an elastic telescopic belt, a fixing head and a connecting rod, wherein a current transformer body is arranged above the supporting plate, a first fixing block and a second fixing block are symmetrically arranged below the connector, a first fixing groove is formed in the left side of the second fixing block, a second fixing groove is formed in the right side of the fixing head, anti-skidding pulling plates are arranged at the outer ends of the first movable rod and the second movable rod, connecting rods are arranged at the left sides of the first movable rod and the second movable rod, and supporting rods are arranged on the first fixing block and the second fixing block. The fixed bus type current transformer is provided with the limiting block and the threaded sleeve, the threaded sleeve is rotated to enable the threaded sleeve to move upwards along the supporting rod until the upper surface of the threaded sleeve is abutted against the lower surface of the limiting block, fixing of the limiting block is completed, and the connecting position of the bus and the connector cannot fall off.

Description

Fixed bus type current transformer

Technical Field

The utility model relates to the technical field of current transformers, in particular to a fixed bus type current transformer.

Background

The current transformer is an instrument for converting primary side large current into secondary side small current according to an electromagnetic induction principle to measure. The current transformer consists of a closed iron core and windings. Its primary winding turns are very few and are strung in the line of the current to be measured.

Therefore, the secondary side winding turns are relatively large, and the secondary side loop is always closed when the current transformer works, so that the impedance of the series coil of the measuring instrument and the protection loop is very small, and the working state of the current transformer is close to a short circuit. The current transformer is used for converting primary side large current into secondary side small current for measurement, and the secondary side cannot be opened. The entry introduces the working principle, parameter description, classification, usage introduction, etc.

The utility model discloses a fixed bus-bar type current transformer of publication number CN212625021U is through placing the recess that needs to connect both ends about the outside busbar passes through the casing on line concentration board a and line concentration board b, because line concentration board a and line concentration board b front end has seted up the line concentration groove and has conveniently carried out preliminary fixed to the busbar, simultaneously, the staff promotes limiting plate a and limiting plate b in casing 1 through limiting plate a and limiting plate b front end surface's handle, by the equal horizontal array of line concentration groove on limiting plate a and the line concentration board b and the size is the same, the convenience is further fixed to the outside busbar of connection. However, the device has certain defects;

1. when moving or transporting current transformer, current transformer shakes and leads to the position that generating line and current transformer connect to take place to loosen easily, if the manual work does not check, then influences current transformer's normal work, and simultaneously when the generating line is shaking in the atress, owing to fixed by mechanisms such as line collecting groove and limiting plate, continuous friction between generating line and line collecting groove and the limiting plate to lead to the generating line surface impaired easily.

We have therefore proposed a fixed busbar current transformer in order to solve the problems set out above.

Disclosure of Invention

The utility model aims to provide a fixed bus type current transformer, which solves the problems that when the current transformer is moved or transported, the current transformer shakes to easily cause the positions of buses and current transformer joints to loose, and if the positions are not checked manually, the normal operation of the current transformer is affected, and when the buses shake under the stress, the buses are fixed by mechanisms such as a line collecting groove, a limiting plate and the like, and the buses are continuously rubbed with the line collecting groove and the limiting plate, so that the surface of the buses is easily damaged.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a fixed busbar formula current transformer, includes backup pad, connector, elastic telescopic band, fixed head and connecting rod, the current transformer body is installed to the top of backup pad, and the connector is installed on the positive surface of current transformer body, and the generating line is installed to the below of connector moreover, the below symmetry of connector is provided with first fixed block and second fixed block, and the elastic telescopic band is installed on the right side of first fixed block, and the fixed head is installed on the right side of elastic telescopic band, first fixed slot has been seted up on the left side of second fixed block, the second fixed slot has been seted up on the right side of fixed head, and logical groove has been seted up on the right side of second fixed slot, and logical groove's inside upper and lower both sides are provided with first movable rod and second movable rod respectively, the antiskid plectrum is all installed to the outer end of first movable rod and second movable rod, and the antiskid plectrum all is connected through the telescopic spring with the surface of second fixed block, the connecting rod is all installed on the left side of first movable rod and second movable rod, and the equal fixed block of installation is all fixed on the first fixed block.

Preferably, the outside of generating line is installed the stationary blade, is fixed connection between stationary blade and the generating line, and is electric connection between generating line and the connector, and the stopper is installed to the lower surface left and right sides symmetry of stationary blade, and the central line of stopper and the central line of screw sleeve coincide each other moreover.

By adopting the structural design, the limiting block can be abutted upwards through the thread sleeve, so that the fixing piece is abutted to the lower surface of the connector, and the connection position of the bus and the connector cannot fall off.

Preferably, the elastic telescopic band is located between the first fixed block and the second fixed block, the first fixed block and the second fixed block are fixed on the current transformer body, and the surface of the elastic telescopic band is provided with anti-skidding patterns.

By adopting the structural design, when the bus is limited by pulling the elastic telescopic belt, the bus is more stressed, and the bus is not easy to slide off when the elastic telescopic belt is pulled.

Preferably, the center line of the fixing head and the center line of the first fixing groove are mutually overlapped, and the fixing head is movably connected with the first fixing groove.

By adopting the structural design, the fixing head is pulled to drive the fixing head to move rightwards, so that the fixing head is abutted with the first fixing groove, and the fixing head is convenient to fix.

Preferably, the upper side and the lower side of the second fixed groove are symmetrically provided with limiting grooves, the center lines of the limiting grooves are mutually overlapped with the center line of the positioning block, and the second fixed groove is communicated with the through groove.

By adopting the structural design, the anti-skidding pulling plate is pressed inwards, the anti-skidding pulling plate drives the first movable rod and the second movable rod to move relatively, then the connecting rod is driven to move relatively, then the elastic telescopic belt is pulled, the fixing head on the elastic telescopic belt is embedded into the first fixing groove, at the moment, the connecting rod and the locating block are located in the second fixing groove, then the anti-skidding pulling plate is loosened, the anti-skidding pulling plate, the first movable rod, the second movable rod and the connecting rod are reset under the action of resilience force of the telescopic spring, and the locating block on the connecting rod is driven to be clamped with the second fixing groove, so that the fixing of the fixing head is completed.

Preferably, a thread sleeve is arranged above the support rod, and the thread sleeve is connected with the support rod in a thread structure.

By adopting the structural design, the thread bush is rotated, so that the thread bush moves upwards along the supporting rod until the upper surface of the thread bush is abutted against the lower surface of the limiting block, the limiting block is fixed, and the bus and the connector can be prevented from falling off.

Compared with the prior art, the utility model has the beneficial effects that: the fixed bus type current transformer comprises:

1. the anti-skidding plate is arranged in the second fixed groove, the anti-skidding plate is pressed inwards to drive the first movable rod and the second movable rod to move relatively, then the connecting rod is driven to move relatively, then the elastic telescopic belt is pulled, the fixing head on the elastic telescopic belt is embedded into the first fixed groove, at the moment, the connecting rod and the positioning block are positioned in the second fixed groove, then the anti-skidding plate is loosened, the anti-skidding plate, the first movable rod, the second movable rod and the connecting rod are reset under the resilience force of the telescopic spring, the positioning block on the connecting rod is driven to be clamped with the second fixed groove, so that the fixing head is fixed, the limit of a bus is finished, the operation is simple and quick, a certain gap is reserved around the bus, friction is generated when the bus is transported and rocked, and a certain protection effect is achieved on the bus;

2. be provided with stopper and thread bush, rotatory thread bush makes the thread bush upwards move along the bracing piece, until the upper surface of thread bush and the lower surface butt of stopper, accomplishes the fixed to the stopper, makes the busbar can not take place to drop with the hookup location of connector.

Drawings

FIG. 1 is a schematic diagram of a front view structure of the present utility model;

FIG. 2 is a schematic view of a bus bar fixing structure according to the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;

FIG. 4 is a schematic view of the connection structure of the support rod and the threaded sleeve according to the present utility model;

FIG. 5 is a schematic view showing the bottom structure of the fixing plate of the present utility model.

In the figure: 1. a support plate; 2. a current transformer body; 3. a connector; 4. a bus; 5. a fixing piece; 6. a limiting block; 7. a first fixed block; 8. a second fixed block; 9. an elastic stretch band; 10. a fixed head; 11. a first fixing groove; 12. a second fixing groove; 13. a limit groove; 14. a through groove; 15. a first movable lever; 16. a second movable rod; 17. an anti-slip shifting plate; 18. a telescopic spring; 19. a connecting rod; 20. a positioning block; 21. a support rod; 22. and (5) a threaded sleeve.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution: the utility model provides a fixed busbar formula current transformer, including backup pad 1, current transformer body 2, connector 3, busbar 4, stationary blade 5, stopper 6, first fixed block 7, second fixed block 8, elastic telescopic band 9, fixed head 10, first fixed slot 11, second fixed slot 12, spacing groove 13, lead to the groove 14, first movable rod 15, second movable rod 16, anti-skidding plectrum 17, telescopic spring 18, connecting rod 19, locating piece 20, bracing piece 21 and thread bush 22, current transformer body 2 is installed to backup pad 1's top, and connector 3 is installed to current transformer body's positive surface, and busbar 4 is installed to connector 3's below, stationary blade 5 is installed in busbar 4's outside, be fixed connection between stationary blade 5 and the busbar 4, and be electric connection between busbar 4 and the connector 3, stopper 6 is installed to the left and right sides symmetry of the lower surface of stationary blade 5, and the central line of stopper 6 and thread bush 22 coincide each other, the accessible thread bush 22 carries out the butt upwards to stopper 6, thereby with stationary blade 5 butt in connector 3's lower surface, the position can not take place with the busbar 3 and drop.

The below symmetry of connector 3 is provided with first fixed block 7 and second fixed block 8, and the elastic telescopic strap 9 is installed on the right side of first fixed block 7, elastic telescopic strap 9 is located between first fixed block 7 and the second fixed block 8, first fixed block 7 and second fixed block 8 are fixed in current transformer body 2, and elastic telescopic strap 9 surface is provided with the antiskid line, be convenient for carry out spacing to busbar 4 through pulling elastic telescopic strap 9, better atress, and be difficult for taking place the landing when pulling elastic telescopic strap 9, fixed head 10 is installed on the right side of elastic telescopic strap 9 in addition, the central line of fixed head 10 and the central line of first fixed slot 11 coincide each other, and be swing joint between fixed head 10 and the first fixed slot 11, pulling fixed head 10 drives fixed head 10 and moves rightwards, make fixed head 10 and first fixed slot 11 butt, be convenient for fix fixed head 10.

The left side of second fixed block 8 has seted up first fixed slot 11, second fixed slot 12 has been seted up on the right side of fixed head 10, spacing groove 13 has been seted up to the upper and lower bilateral symmetry of second fixed slot 12, and the central line of spacing groove 13 coincides each other with the central line of locating piece 20, and second fixed slot 12 is linked together with logical groove 14, inwards press anti-skidding plate 17, anti-skidding plate 17 drives first movable rod 15 and second movable rod 16 relative movement, then drive connecting rod 19 relative movement, then pull elastic telescopic strap 9, make fixed head 10 on the elastic telescopic strap 9 imbed in first fixed slot 11, connecting rod 19 and locating piece 20 are located second fixed slot 12 this moment, then loosen anti-skidding plate 17, first movable rod 15, second movable rod 16 and connecting rod 19 reset under the effect of elasticity of telescopic spring 18, drive locating piece 20 and second fixed slot 12 joint on the connecting rod 19, thereby accomplish the fixed head 10.

The right side of second fixed slot 12 has been seted up logical groove 14, and logical groove 14's inside upper and lower both sides are provided with first movable rod 15 and second movable rod 16 respectively, anti-skidding dialling board 17 is all installed to the outer end of first movable rod 15 and second movable rod 16, and anti-skidding dialling board 17 all is connected through telescopic spring 18 with the surface of second fixed block 8, connecting rod 19 is all installed in the left side of first movable rod 15 and second movable rod 16, and locating piece 20 is all installed to the opposite side of connecting rod 19, all install bracing piece 21 on first fixed block 7 and the second fixed block 8, thread bush 22 is installed to the top of bracing piece 21, and be threaded connection between thread bush 22 and the bracing piece 21, rotatory thread bush 22 makes thread bush 22 upwards move along bracing piece 21, until the upper surface of thread bush 22 and the lower surface butt of stopper 6, accomplish the fixed to stopper 6, can prevent that busbar 4 and connector 3 from taking place to drop.

Working principle: when the fixed bus-bar type current transformer is used, firstly, the bus bar 4 is connected to the connector 3, the fixing piece 5 on the bus bar 4 is abutted against the lower surface of the connector 3, then the threaded sleeve 22 is rotated, the threaded sleeve 22 moves upwards along the supporting rod 21 until the upper surface of the threaded sleeve 22 is abutted against the lower surface of the limiting block 6, the limiting block 6 is fixed, and the connecting position of the bus bar 4 and the connector 3 cannot fall off.

The anti-skidding pulling plate 17 is pressed inwards, the anti-skidding pulling plate 17 drives the first movable rod 15 and the second movable rod 16 to move relatively, then drives the connecting rod 19 to move relatively, then pulls the elastic telescopic belt 9 to enable the fixing head 10 on the elastic telescopic belt 9 to be embedded into the first fixing groove 11, at the moment, the connecting rod 19 and the locating block 20 are located in the second fixing groove 12, then the anti-skidding pulling plate 17 is loosened, the anti-skidding pulling plate 17, the first movable rod 15, the second movable rod 16 and the connecting rod 19 reset under the action of resilience force of the telescopic spring 18, and the locating block 20 on the connecting rod 19 is driven to be clamped with the second fixing groove 12, so that the fixing of the fixing head 10 is completed, and the limiting of the bus 4 is completed. Thereby completing a series of works. What is not described in detail in this specification is prior art known to those skilled in the art.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (6)

1. The utility model provides a fixed generating line formula current transformer, includes backup pad (1), connector (3), elastic telescopic band (9), fixed head (10) and connecting rod (19), its characterized in that: the utility model discloses a current transformer body (2) is installed to the top of backup pad (1), and connector (3) are installed to the positive surface of current transformer body (2), and busbar (4) are installed to the below of connector (3) moreover, the below symmetry of connector (3) is provided with first fixed block (7) and second fixed block (8), and elastic expansion band (9) are installed on the right side of first fixed block (7), and fixed head (10) are installed on the right side of elastic expansion band (9) moreover, first fixed slot (11) have been seted up on the left side of second fixed block (8), second fixed slot (12) have been seted up on the right side of fixed head (10), and logical groove (14) have been seted up on the right side of second fixed slot (12), and the inside upper and lower both sides of logical groove (14) are provided with first movable rod (15) and second movable rod (16) respectively, anti-skidding board (17) are all installed on the outer end of first movable rod (15) and second movable rod (16), and anti-skidding board (17) are all installed through the connecting rod (19) of second movable rod (16) and the equal outside of connecting rod (19) all through the reverse side of connecting rod (19), the first fixed block (7) and the second fixed block (8) are provided with supporting rods (21).

2. A fixed bus current transformer as set forth in claim 1 wherein: the utility model discloses a bus, including bus (4), fixed plate (5) are installed in the outside of bus (4), are fixed connection between fixed plate (5) and bus (4), and are electric connection between bus (4) and connector (3), stopper (6) are installed to the lower surface left and right sides symmetry of fixed plate (5), and the central line of stopper (6) and the central line of screw sleeve (22) coincide each other moreover.

3. A fixed bus current transformer as set forth in claim 1 wherein: the elastic telescopic band (9) is located between the first fixed block (7) and the second fixed block (8), the first fixed block (7) and the second fixed block (8) are fixed on the current transformer body (2), and anti-skidding patterns are arranged on the surface of the elastic telescopic band (9).

4. A fixed bus current transformer as set forth in claim 1 wherein: the center line of the fixing head (10) is overlapped with the center line of the first fixing groove (11), and the fixing head (10) is movably connected with the first fixing groove (11).

5. A fixed bus current transformer as set forth in claim 1 wherein: limiting grooves (13) are symmetrically formed in the upper side and the lower side of the second fixing groove (12), the center line of the limiting grooves (13) is mutually overlapped with the center line of the positioning block (20), and the second fixing groove (12) is communicated with the through groove (14).

6. A fixed bus current transformer as set forth in claim 1 wherein: a thread sleeve (22) is arranged above the supporting rod (21), and the thread sleeve (22) is connected with the supporting rod (21) in a thread structure.