CN213583469U

CN213583469U - Current transformer for metering

Info

Publication number: CN213583469U
Application number: CN202023031849.5U
Authority: CN
Inventors: 毛卫兴
Original assignee: Jiangsu Eryi Electric Co ltd
Current assignee: Jiangsu Eryi Electric Co ltd
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-06-29
Anticipated expiration: 2030-12-16

Abstract

The utility model discloses a current transformer for metering, which comprises a shell, wherein a current transformer body is arranged in the shell, and one side of the shell is fixedly connected with a box body; in the scheme, through the suction fan, the tuber pipe, the setting of suction head and box etc, with dust suction in the casing, and the transmission is to in the box, avoid the in-process to the electric current transformer use for the measurement, the dust leads to the fact the influence to current transformer easily in the air, the normal use that has hindered current transformer leads to the fact certain damage to inside component, be unfavorable for the condition of using for a long time, through the casing, the apron, driven bevel gear, drive bevel gear, the threaded rod, setting such as kelly and draw-in groove, protect the current transformer body, avoid the dust in the external environment to lead to the fact certain influence to current transformer, and can open or close the apron fast, thereby the convenience is maintained the current transformer body.

Description

Current transformer for metering

Technical Field

The utility model relates to a current transformer technical field, more specifically say, it relates to a current transformer for measurement.

Background

The existing current transformers have different types, so that the installation sizes are different, the installation sizes are determined in the manufacturing process and cannot be changed, and when the current transformers need to be replaced, for example, the current transformers with lower precision in a switch frame are replaced by new high-precision multifunctional current transformers in power grid transformation.

Chinese patent document discloses a current transformer for metering (application No. CN 00210180.7), which solves the problem that the current transformers of different models and specifications are interchangeably installed by exchanging connecting terminals and mounting plates of different sizes and shapes, but dust in the environment easily affects the current transformers to a certain extent, so that the normal use of the current transformers is hindered, and internal elements are easily damaged to a certain extent, which is not favorable for long-term use.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a current transformer is used in measurement, it has protects current transformer, avoids the dust in the environment to cause the characteristics of influence to current transformer.

In order to achieve the above purpose, the utility model provides a following technical scheme: a current transformer for metering comprises a shell, wherein a current transformer body is arranged in the shell, one side of the shell is fixedly connected with a box body, two sides of the inner wall of the box body are fixedly connected with the same fixed plate, the top of the fixed plate is fixedly connected with a suction fan, the air inlet end and the air outlet end of the suction fan are both communicated with air pipes, one end of one air pipe penetrates through one side of the box body and one side of the shell respectively and is communicated with a suction head, one end of the other air pipe penetrates through the top of the fixed plate and is positioned below the fixed plate, the top of the shell is hinged with a cover plate through a pin shaft, and the bottom of the; through adopting above-mentioned technical scheme, through the setting of fixed plate, play the effect of support to the box.

The top of the inner wall and the bottom of the inner wall of the box body are fixedly connected with slide rails, the two slide rails are internally and slidably connected with limit blocks, opposite surfaces of the two limit blocks are fixedly connected with connecting rods, two sides of the inner wall of the box body are fixedly connected with bearings, and rotating shafts are movably arranged in the two bearings in a penetrating manner; by adopting the technical scheme, the threaded rod can rotate through the arrangement of the bearing and the rotating shaft; the opposite ends of the two rotating shafts are fixedly connected with the same threaded rod, the surface of the threaded rod is in threaded connection with a threaded cylinder, the surface of the threaded rod is fixedly connected with a driven bevel gear, the top of the box body and the top of the shell are both provided with through grooves, the two through grooves are communicated, the same adjusting rod is lapped in the two through grooves, the top end of the adjusting rod is fixedly connected with a rotating handle, the bottom end of the adjusting rod is fixedly connected with a driving bevel gear, the driven bevel gear is meshed with the driving bevel gear, one ends of the two connecting rods are both fixedly connected with the outer surface of the threaded cylinder, the surfaces of the two connecting rods are both fixedly connected with clamping rods, one side of the shell is provided with a clamping groove, one side of the box body is provided with two through holes, and the clamping, the two clamping rods are respectively clamped with the two clamping grooves, one side of the box body is movably connected with a box door through a hinge, and the front side of the box door is respectively and fixedly connected with a handle and a control button; by adopting the technical scheme, the box door is convenient to open through the arrangement of the box door and the handle, and the receiving hopper is taken out of the box body.

Furthermore, the cover plate is provided with a plurality of wire holes, and the number of the wire holes is multiple.

Through adopting above-mentioned technical scheme, through the setting of line hole, conveniently be connected with external line.

Further, radiating holes are formed in two sides of the shell, and the number of the radiating holes is multiple.

Through adopting above-mentioned technical scheme, through the setting of louvre, make the circulation of air in the casing to and then the heat dissipation.

Furthermore, an observation window is fixedly connected to the box door.

Through adopting above-mentioned technical scheme, through the setting of observation window, observe the dust in holding the fill to can in time pour out the dust in holding the fill.

Furthermore, a bearing hopper is lapped at the bottom of the inner wall of the box body.

Through adopting above-mentioned technical scheme, through the setting of accepting the fill, accept the dust to the convenience is taken out the dust.

Furthermore, the control button is electrically connected with the suction fan through a lead.

Through adopting above-mentioned technical scheme, through control button's setting, control suction fan's operating condition.

To sum up, the utility model discloses following beneficial effect has:

1. in the scheme, through the arrangement of the suction fan, the air pipe, the suction head, the box body and the like, dust in the shell is sucked out and is transmitted into the box body, so that the situation that the dust in the air easily affects the current transformer, the normal use of the current transformer is hindered, internal elements are damaged to a certain extent and the long-term use is not facilitated in the process of using the current transformer for electricity metering is avoided;

2. through the setting of casing, apron, driven bevel gear, initiative bevel gear, threaded rod, kelly and draw-in groove etc. protect the current transformer body, avoid the dust in the external environment to cause certain influence to current transformer to can open or close the apron fast, thereby the convenience is maintained the current transformer body.

Drawings

Fig. 1 is a schematic front view of a cross-sectional structure of the present invention;

fig. 2 is an enlarged schematic structural view of fig. 1 of the present invention;

FIG. 3 is a schematic view of the front view structure of the box body of the present invention;

fig. 4 is a schematic diagram of the circuit connection structure of the present invention.

In the figure:

1. a current transformer body; 2. a housing; 3. heat dissipation holes; 4. a box body; 5. a suction fan; 6. an air duct; 7. a pin shaft; 8. a suction head; 9. a wire hole; 10. a cover plate; 11. turning a handle; 12. a box body; 13. a limiting block; 14. a clamping rod; 15. a card slot; 16. a through hole; 17. a connecting rod; 18. a slide rail; 19. a threaded rod; 20. a driven bevel gear; 21. a drive bevel gear; 22. adjusting a rod; 23. a through groove; 24. a control button; 25. a box door; 26. an observation window; 27. a receiving hopper.

Detailed Description

Example (b):

the present invention will be described in further detail with reference to the accompanying fig. 1-4.

Referring to fig. 1-4, the present invention provides a technical solution: a current transformer for metering comprises a shell 2, a current transformer body 1 is arranged in the shell 2, a box body 4 is fixedly connected to one side of the shell 2, the two sides of the inner wall of the box body 4 are fixedly connected with the same fixing plate, the top of the fixing plate is fixedly connected with a suction fan 5, an air inlet end and an air outlet end of the suction fan 5 are both communicated with air pipes 6, one end of one air pipe 6 penetrates through the box body 4 and one side of the shell 2 respectively and is communicated with a suction head 8, one end of the other air pipe 6 penetrates through the top of the fixing plate and is positioned below the fixing plate, the top of the shell 2 is hinged with a cover plate 10 through a pin shaft 7, one side of the box body 4 is movably connected with a box door 25 through a; the cover plate 10 is provided with a plurality of wire holes 9, and the number of the wire holes 9 is multiple; by adopting the technical scheme, the current transformer body 1 is conveniently connected with an external line body through the arrangement of the line hole 9;

both sides of the shell 2 are provided with a plurality of heat dissipation holes 3, and the number of the heat dissipation holes 3 is multiple; by adopting the technical scheme, the air in the shell 2 is circulated through the heat dissipation holes 3, so that the heat is dissipated; the box door 25 is fixedly connected with an observation window 26; through the arrangement of the observation window 26, the dust in the receiving hopper 27 is observed, so that the dust in the receiving hopper 27 can be poured out in time; a receiving hopper 27 is lapped at the bottom of the inner wall of the box body 4; through the arrangement of the receiving hopper 27, the dust is received, so that the dust is conveniently taken out; the control button 24 is electrically connected with the suction fan 5 through a lead; by adopting the technical scheme, the working state of the air suction machine 5 is controlled by setting the control button 24;

as shown in FIG. 2, a box body 12 is fixedly connected to the bottom of a cover plate 10, slide rails 18 are fixedly connected to the top of the inner wall and the bottom of the inner wall of the box body 12, stoppers 13 are slidably connected to the inside of the two slide rails 18, connecting rods 17 are fixedly connected to the opposite surfaces of the stoppers 13, bearings are fixedly connected to both sides of the inner wall of the box body 12, rotating shafts are movably inserted into the two bearings, the opposite ends of the two rotating shafts are fixedly connected with a same threaded rod 19, a threaded cylinder is connected to the surface of the threaded rod 19, a driven bevel gear 20 is fixedly connected to the surface of the threaded rod 19, through grooves 23 are formed in the top of the box body 12 and the top of a housing 2, the two through grooves 23 are communicated with each other, a same adjusting rod 22 is lapped in the two through grooves 23, a rotating handle 11 is fixedly connected to, one end of each of the two connecting rods 17 is fixedly connected with the outer surface of the threaded cylinder, the surfaces of the two connecting rods 17 are fixedly connected with the clamping rods 14, one side of the shell 2 is provided with a clamping groove 15, one side of the box body 12 is provided with a through hole 16, the number of the clamping grooves 15 and the number of the through holes 16 are two, the clamping grooves 15 are communicated with the through holes 16, and the two clamping rods 14 are respectively clamped with the two clamping grooves 15; through adopting above-mentioned technical scheme, through the setting of slide rail 18 and spacing groove, carry on spacingly to connecting rod 17 to make connecting rod 17 horizontal migration.

The working principle is as follows: when the device is used, the current transformer is connected with an external power supply, the current transformer is placed in the shell 2, the external line body is connected with the current transformer through the line hole 9, then the cover plate 10 is closed, the adjusting rod 22 is rotated through the rotating handle 11, the adjusting rod 22 drives the driving bevel gear 21 to rotate, the driving bevel gear 21 and the driven bevel gear 20 are meshed and connected to drive the driven bevel gear 20 to rotate, the threaded rod 19 is driven to rotate under the combined action of the bearing and the rotating shaft, the threaded barrel is driven to rotate, the threaded barrel moves horizontally leftwards under the action of the connecting rod 17 and the limiting block 13, the limiting block 13 slides leftwards in the sliding rail 18, the connecting rod 17 drives the clamping rod 14 to move leftwards, the clamping rod 14 is clamped with the clamping groove 15, the cover plate 10 is limited and fixed, and the radiating holes 3 enable air in the shell 2 to circulate;

secondly, the control button 24 is opened, the suction fan 5 starts to work, the suction fan 5 sucks dust in the shell 2 into the box body 4 through the air pipe 6, the receiving hopper 27 receives the dust, after a period of time, the control button 24 is closed, the dust in the receiving hopper 27 is observed through the observation window 26, when the dust in the receiving hopper 27 is more, the box door 25 is opened through the handle, the receiving hopper 27 is taken out, the dust is poured out, then the receiving hopper 27 is put back to the original position, and the box door 25 is closed;

finally, when the current transformer body 1 is maintained, the adjusting rod 22 is rotated by the rotating handle 11 again, the adjusting rod 22 drives the driving bevel gear 21 to rotate, the driving bevel gear 21 is meshed with the driven bevel gear 20 to drive the driven bevel gear 20 to rotate, the threaded rod 19 is driven to rotate under the combined action of the bearing and the rotating shaft, the threaded cylinder is driven to rotate, the threaded cylinder horizontally moves rightwards under the action of the connecting rod 17 and the limiting block 13, the limiting block 13 slides rightwards in the sliding rail 18, the connecting rod 17 drives the clamping rod 14 to move rightwards, the clamping rod 14 is enabled not to be clamped with the clamping groove 15 any more, and the cover plate 10 is opened.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. A current transformer for metering comprises a shell (2), and is characterized in that a current transformer body (1) is arranged in the shell (2), one side of the shell (2) is fixedly connected with a box body (4), two sides of the inner wall of the box body (4) are fixedly connected with the same fixing plate, and the top of the fixed plate is fixedly connected with a suction fan (5), the air inlet end and the air outlet end of the suction fan (5) are both communicated with air pipes (6), one end of one air pipe (6) respectively penetrates through the box body (4) and one side of the shell (2) and is communicated with a suction head (8), one end of the other air pipe (6) penetrates through the top of the fixed plate and is positioned below the fixed plate, the top of the shell (2) is hinged with a cover plate (10) through a pin shaft (7), and the bottom of the cover plate (10) is fixedly connected with a box body (12);

the top of the inner wall of the box body (12) and the bottom of the inner wall are fixedly connected with slide rails (18), two slide rails (18) are connected with limit blocks (13) in a sliding manner, opposite faces of the two limit blocks (13) are fixedly connected with connecting rods (17), two sides of the inner wall of the box body (12) are fixedly connected with bearings, rotating shafts are movably arranged in the two bearings in a penetrating manner, opposite ends of the two rotating shafts are fixedly connected with a same threaded rod (19), surface threads of the threaded rod (19) are connected with threaded cylinders, surface of the threaded rod (19) is fixedly connected with driven bevel gears (20), the top of the box body (12) and the top of the shell (2) are both provided with through grooves (23), the two through grooves (23) are communicated, two through grooves (23) are internally lapped with a same adjusting rod (22), the top ends of the adjusting rods (22) are fixedly, the bottom end of the adjusting rod (22) is fixedly connected with a driving bevel gear (21), the driven bevel gear (20) is meshed with the driving bevel gear (21), one end of each of the two connecting rods (17) is fixedly connected with the outer surface of the threaded cylinder, the surfaces of the two connecting rods (17) are fixedly connected with clamping rods (14), one side of the shell (2) is provided with a clamping groove (15), one side of the box body (12) is provided with a through hole (16), the number of the clamping grooves (15) and the through holes (16) is two, the clamping grooves (15) are communicated with the through holes (16), the two clamping rods (14) are respectively clamped with the two clamping grooves (15), one side of the box body (4) is movably connected with a box door (25) through a hinge, the front surface of the box door (25) is fixedly connected with a handle and a control button (24) respectively.

2. The current transformer for metering according to claim 1, characterized in that the cover plate (10) is provided with a plurality of wire holes (9), and the number of the wire holes (9) is multiple.

3. The metering current transformer according to claim 1, wherein heat dissipation holes (3) are formed in both sides of the housing (2), and the number of the heat dissipation holes (3) is multiple.

4. The metering current transformer according to claim 1, characterized in that an observation window (26) is fixedly connected to the box door (25).

5. The metering current transformer according to claim 1, characterized in that a receiving hopper (27) is lapped on the bottom of the inner wall of the box body (4).

6. The metering current transformer according to claim 1, characterized in that the control button (24) is electrically connected with the suction fan (5) through a wire.