CN214537640U

CN214537640U - A verifying attachment for current transformer contact plate

Info

Publication number: CN214537640U
Application number: CN202022392020.1U
Authority: CN
Inventors: 曾祥顺; 王传龙; 王卫东; 黄小军
Original assignee: HENGYANG HUARUI ELECTRIC CO LTD
Current assignee: HENGYANG HUARUI ELECTRIC CO LTD
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-10-29
Anticipated expiration: 2030-10-22

Abstract

The utility model discloses a checking device for a contact plate of a current transformer, which comprises a first shell, wherein the upper surface of the first shell is uniformly and fixedly connected with a vertical rod, the outer side wall sleeve of the vertical rod is provided with a first sleeve, the outer side wall of the first sleeve is fixedly connected with a second shell, the inner side wall of the second shell is in sliding connection with a third shell, the inner side wall of the fifth shell is in sliding connection with a second sleeve, the inner side wall of the fifth shell is in threaded connection with a threaded rod, the top of the threaded rod is rotationally connected with the bottom of the second sleeve through a bearing, the bottom of the threaded rod is fixedly connected with a first knob, in the use of the checking device, a user can adapt to the contact plates with different specifications by pulling the third shell and the fourth shell out of the second shell, and simultaneously through the arrangement of a mobile sensor, the information such as the size diameter of reacing the contact plate that can be accurate shows through the display screen simultaneously.

Description

A verifying attachment for current transformer contact plate

Technical Field

The utility model relates to a current transformer contact plate inspection technical field specifically is an inspection device for current transformer contact plate.

Background

The current transformer is an instrument for converting a large primary side current into a small secondary side current to measure according to the electromagnetic induction principle, and consists of a closed iron core and a winding, wherein the primary side winding has few turns and 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 secondary side winding has more turns and is connected in series in a measuring instrument and a protection loop, and the secondary side loop of the current transformer 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 converts a large current on the primary side into a small current on the secondary side for measurement, and the secondary side can not be opened. The work principle, parameter description, classification, use introduction and the like of the contact plate are introduced by the vocabulary entry, the contact plate is an important conductive part in the current transformer, most of the contact plate is of a rectangular plate-shaped structure, through holes are arranged on the contact plate according to needs, according to the external dimensions of different contact plates of the current transformer and the sizes and the positions of the through holes arranged on the contact plates, in the production process, an inspector needs to respectively measure the external dimensions of each contact plate and the sizes and the positions of the through holes by using detection tools such as a ruler, a caliper and the like, the inspection efficiency is low, the error rate is high, and the like

The utility model discloses the china discloses authorize utility model: CN106482595A discloses a current transformer contact plate inspection tool, which during inspection, firstly selects a required inspection tool according to the external dimension of the contact plate to be inspected, then puts the contact plate into the rectangular groove on the main body, and inserts the through hole on the contact plate into the cylindrical protrusion in the groove, if the contact plate can be completely put into the rectangular groove and the through hole on the contact plate can escape from the cylindrical protrusion in the groove, the product is qualified, however, there is a problem that the device can only measure the contact plate with a specified size and type, and when some contact plates with different specifications are encountered, the contact plate cannot be measured, therefore, the inspection device for the current transformer contact plate is provided.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To the not enough of prior art, the utility model provides an verifying attachment for current transformer contact plate.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a checking device for a contact plate of a current transformer comprises a first shell, wherein a vertical rod is uniformly and fixedly connected to the upper surface of the first shell, a first sleeve is sleeved on the outer side wall of the vertical rod, a second shell is fixedly connected to the outer side wall of the first sleeve, a third shell is slidably connected to the inner side wall of the second shell, a fourth shell is slidably connected to the inner side wall of the third shell, a fifth shell is fixedly connected to one end, away from the third shell, of the fourth shell, a second sleeve is slidably connected to the inner side wall of the fifth shell, a threaded rod is in threaded connection with the inner side wall of the fifth shell, the top of the threaded rod is rotatably connected to the bottom of the second sleeve through a bearing, a first knob is fixedly connected to the bottom of the threaded rod, a support plate is fixedly connected to the inner side wall of the second sleeve, and a connecting rod is rotatably connected to the upper surface of the support plate through a bearing, the top of the connecting rod is fixedly connected with a second knob, the outer side wall of the connecting rod is fixedly connected with a first gear, the inner side wall of the second sleeve is rotationally connected with a bidirectional screw through a bearing, the outer side wall of the bidirectional screw is fixedly connected with a second gear, the outer side wall of the bidirectional screw is symmetrically and threadedly connected with two ring bodies, the outer side wall of each ring body is fixedly connected with an L-shaped rod, a sixth shell is fixedly connected to one end of the L-shaped rod, which is far away from the ring body, scale scales are bonded on the outer side walls of the sixth shell, the second sleeve, the third shell and the fourth shell, the upper surface of the first shell is provided with a display screen, the third shell and the fourth shell are far away from a first limiting plate fixedly connected with one end of the fifth shell, and a displacement sensor is arranged on one side of the first limiting plate.

Preferably, four first supporting rods are symmetrically and fixedly connected to the lower surface of the first shell, and a connecting plate is fixedly connected to the bottoms of the first supporting rods.

Preferably, the inner side wall of the first shell is connected with a box body in a sliding mode, and a limiting block is fixedly connected to the front surface of the box body.

Preferably, the front surface and the rear surface of the fifth shell are both fixedly connected with a sub-button, the front surface and the rear surface of the second shell are both fixedly connected with a female button, and the female button is matched with the sub-button.

Preferably, the top of the vertical rod is fixedly connected with a second limiting plate, and a rubber pad is bonded to the upper surface of the second limiting plate.

Preferably, the rear surface of the first casing is connected with a handle through screw threads, the rear surface of the display screen is connected with a second supporting rod through screw threads, and one end, far away from the display screen, of the second supporting rod is connected with the upper surface of the first casing through screw threads.

In addition the utility model also provides an inspection method for current transformer contact plate, including following step:

s1, pulling the fourth shell and the third shell out of the second shell, and adjusting the position of the fourth shell according to the size of the contact plate;

s2, inserting the sixth shell into the mounting hole of the contact plate, rotating the connecting rod by taking the second knob as a force application point, and adjusting the position of the sixth shell;

and S3, obtaining a measurement result through the displacement sensor and the graduated scale.

Preferably, the rotation connecting rod in S2 drives the first gear to rotate, the rotation of the first gear drives the second gear and the bidirectional screw to rotate, and the rotation of the bidirectional screw drives the position of the L-shaped rod to be adjusted, so as to drive the sixth shell to adjust the position.

(III) advantageous effects

Compared with the prior art, the utility model provides an verifying attachment for current transformer contact plate possesses following beneficial effect:

in the use of the utility model, a user can pull the third shell and the fourth shell out of the second shell, so that the contact plates with different specifications can be adapted, and meanwhile, through the arrangement of the mobile sensor, information such as the size and the diameter of the contact plate can be accurately obtained and displayed through the display screen;

two, simultaneously the utility model discloses an in the middle of the use, the user can rotate the connecting rod for the impetus through the second knob to drive second gear and two-way screw rod and rotate, the rotation of two-way screw rod can drive the sixth casing and carry out the position and remove, thereby adapts to the mounting hole of different diameters in the middle of the contact plate, and each item information of contact plate can be more fast obtained in the use of person of facilitating the use.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic rear view of the present invention;

fig. 3 is a schematic view of the internal structure of a fifth casing of the present invention;

fig. 4 is a schematic diagram of the internal structure of the second housing according to the present invention.

In the figure: 1. a first housing; 2. erecting a rod; 3. a first sleeve; 4. a second housing; 5. a third housing; 6. a fourth housing; 7. a fifth housing; 8. a threaded rod; 9. a first knob; 10. a second sleeve; 11. a support plate; 12. a connecting rod; 13. a second knob; 14. a first gear; 15. a bidirectional screw; 16. a second gear; 17. a ring body; 18. an L-shaped rod; 19. a first limit plate; 20. a displacement sensor; 21. a display screen; 22. a handle; 23. a graduated scale; 24. a second limiting plate; 25. a rubber pad; 26. a sixth housing; 27. a sub-buckle; 28. a female buckle; 29. a first support bar; 30. connecting plates; 31. a box body; 32. a limiting block; 33. a second support bar.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-4, the present invention provides a technical solution: a testing device for a contact plate of a current transformer comprises a first shell 1, wherein the upper surface of the first shell 1 is uniformly and fixedly connected with an upright rod 2, the outer side wall of the upright rod 2 is sleeved with a first sleeve 3, the outer side wall of the first sleeve 3 is fixedly connected with a second shell 4, the inner side wall of the second shell 4 is slidably connected with a third shell 5, the inner side wall of the third shell 5 is slidably connected with a fourth shell 6, one end of the fourth shell 6, which is far away from the third shell 5, is fixedly connected with a fifth shell 7, the inner side wall of the fifth shell 7 is slidably connected with a second sleeve 10, the inner side wall of the fifth shell 7 is in threaded connection with a threaded rod 8, the top of the threaded rod 8 is rotatably connected to the bottom of the second sleeve 10 through a bearing, the bottom of the threaded rod 8 is fixedly connected with a first knob 9, the inner side wall of the second sleeve 10 is fixedly connected with a support plate 11, and the upper surface of the support plate 11 is rotatably connected with a connecting rod 12 through a bearing, top fixedly connected with second knob 13 of connecting rod 12, the first gear 14 of lateral wall fixedly connected with of connecting rod 12, the inside wall of second sleeve 10 rotates through the bearing and is connected with two-way screw rod 15, two-way screw rod 15's lateral wall fixedly connected with second gear 16, two-way screw rod 15's lateral wall symmetric thread is connected with two rings 17, ring 17's lateral wall fixedly connected with L shape pole 18, L shape pole 18 keeps away from the sixth casing 26 of one end fixedly connected with of ring 17, sixth casing 26, second casing 4, second sleeve 10, the lateral wall of third casing 5 and fourth casing 6 all bonds and has scale 23, the last surface mounting of first casing 1 has display screen 21, the equal fixedly connected with first limiting plate 19 of one end that fifth casing 7 was kept away from to third casing 5 and fourth casing 6, displacement sensor 20 is installed to one side of first limiting plate 19.

In this embodiment, specifically: four first supporting rods 29 are symmetrically and fixedly connected to the lower surface of the first shell 1, and a connecting plate 30 is fixedly connected to the bottoms of the first supporting rods 29; through the setting of four first bracing pieces 29, can support this device, even board 30 can increase the area of contact between this device and the ground simultaneously to increase the stability of this device.

In this embodiment, specifically: a box body 31 is connected to the inner side wall of the first shell 1 in a sliding manner, and a limiting block 32 is fixedly connected to the front surface of the box body 31; the user can pull the case 31 out of the inside of the first housing 1 through the stopper 32, thereby putting some materials into the inside of the case 31.

In this embodiment, specifically: the front surface and the rear surface of the fifth shell 7 are both fixedly connected with a sub-buckle 27, the front surface and the rear surface of the second shell 4 are both fixedly connected with a female buckle 28, and the female buckle 28 is matched with the sub-buckle 27; through the arrangement of the male buckle 27 and the female buckle 28, the user can clamp the fifth shell 7 and the second shell 4, thereby completing the storage of the device.

In this embodiment, specifically: the top of the upright rod 2 is fixedly connected with a second limiting plate 24, and the upper surface of the second limiting plate 24 is bonded with a rubber pad 25; the second stopper plate 24 can restrict the position of the first sleeve 3, and the rubber pad 25 can buffer the contact plate.

In this embodiment, specifically: the rear surface of the first shell 1 is connected with a handle 22 through screw threads, the rear surface of the display screen 21 is connected with a second support rod 33 through screw threads, and one end, far away from the display screen 21, of the second support rod 33 is connected to the upper surface of the first shell 1 through screw threads; through the setting of handle 22, the user can carry out position shift for the application point through handle 22 to this device, and second bracing piece 33 can carry out spacing to display screen 21 simultaneously.

s1, pulling the fourth casing 6 and the third casing 5 out of the second casing 4, and adjusting the position of the fourth casing 6 according to the size of the contact plate;

s2, inserting the sixth shell 26 into the mounting hole of the contact plate, rotating the connecting rod 12 by taking the second knob 13 as a force application point, and adjusting the position of the sixth shell 26;

and S3, obtaining a measurement result through the displacement sensor 20 and the graduated scale 23.

In this embodiment, specifically: in S2, the rotating link 12 drives the first gear 14 to rotate, the rotation of the first gear 14 drives the second gear 16 and the two-way screw 15 to rotate, and the rotation of the two-way screw 15 drives the position of the L-shaped rod 18 to be adjusted, so as to drive the sixth housing 26 to be adjusted.

In summary, the working principle and the working process of the inspection device for the contact plate of the current transformer are that, when in use, a user can firstly place the contact plate on the upper surface of the second limiting plate 24, and at the same time, the user can adjust the positions of the second housing 4 and the third housing 5 inside the second housing 4 according to the area of the contact plate, and at the same time, the user can insert the sixth housing 26 into the through hole of the contact plate, and simultaneously, the connecting rod 12 is rotated by taking the second knob 13 as an acting point, the rotation of the connecting rod 12 drives the two-way screw 15 and the second gear 16 to rotate, the rotation of the two-way screw 15 drives the sixth housing 26 to adjust the position, so as to obtain the aperture of the contact plate, and simultaneously, the threaded rod 8 is rotated by taking the first knob 9 as an acting point, so as to adjust the position of the second sleeve 10 inside the fifth housing 7, and by adjusting the position of the second sleeve 10, can obtain the thickness of contact plate, displacement sensor 20's signal output part signal connection is in the signal input part of display screen 21, and the setting through displacement sensor 20 and scale 23 can reach the information such as whole width and the diameter of contact plate, shows through display screen 21 simultaneously, makes things convenient for the staff to use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An inspection device for a contact plate of a current transformer, comprising a first housing (1), characterized in that: the upper surface of the first shell (1) is uniformly and fixedly connected with a vertical rod (2), the outer side wall of the vertical rod (2) is sleeved with a first sleeve (3), the outer side wall of the first sleeve (3) is fixedly connected with a second shell (4), the inner side wall of the second shell (4) is slidably connected with a third shell (5), the inner side wall of the third shell (5) is slidably connected with a fourth shell (6), one end, far away from the third shell (5), of the fourth shell (6) is fixedly connected with a fifth shell (7), the inner side wall of the fifth shell (7) is slidably connected with a second sleeve (10), the inner side wall of the fifth shell (7) is in threaded connection with a threaded rod (8), the top of the threaded rod (8) is rotatably connected to the bottom of the second sleeve (10) through a bearing, and the bottom of the threaded rod (8) is fixedly connected with a first knob (9), the utility model discloses a two-way screw rod (15) for two-way screw rod (15), including first sleeve (10), the inside wall fixedly connected with backup pad (11) of second sleeve (10), the upper surface of backup pad (11) is connected with connecting rod (12) through the bearing rotation, the top fixedly connected with second knob (13) of connecting rod (12), the first gear of lateral wall fixedly connected with (14) of connecting rod (12), the inside wall of second sleeve (10) is connected with two-way screw rod (15) through the bearing rotation, the lateral wall fixedly connected with second gear (16) of two-way screw rod (15), the lateral wall symmetry threaded connection of two-way screw rod (15) has two rings (17), the lateral wall fixedly connected with L shape pole (18) of ring (17), L shape pole (18) are kept away from the one end fixedly connected with sixth casing (26) of ring (17), sixth casing (26) second casing (4), Second sleeve (10) third casing (5) with scale (23) have all been bonded to the lateral wall of fourth casing (6), the last surface mounting of first casing (1) has display screen (21), third casing (5) with fourth casing (6) are kept away from the first limiting plate (19) of the equal fixedly connected with of one end of fifth casing (7), displacement sensor (20) are installed to one side of first limiting plate (19), four first bracing pieces (29) of the lower surface symmetry fixedly connected with of first casing (1), the bottom fixedly connected with of first bracing piece (29) links board (30).

2. The inspection device for the contact plate of the current transformer as claimed in claim 1, wherein: the inside wall sliding connection of first casing (1) has box body (31), the front surface fixed connection of box body (31) has stopper (32).

3. The inspection device for the contact plate of the current transformer as claimed in claim 1, wherein: the equal fixedly connected with son of front surface and the rear surface of fifth casing (7) is detained (27), the equal fixedly connected with box (28) of front surface and the rear surface of second casing (4), box (28) with son detains (27) looks adaptation.

4. The inspection device for the contact plate of the current transformer as claimed in claim 1, wherein: the top of the upright rod (2) is fixedly connected with a second limiting plate (24), and a rubber pad (25) is bonded on the upper surface of the second limiting plate (24).

5. The inspection device for the contact plate of the current transformer as claimed in claim 1, wherein: the rear surface of first casing (1) has handle (22) through screw thread connection, the rear surface of display screen (21) has second bracing piece (33) through screw thread connection, second bracing piece (33) are kept away from the one end of display screen (21) pass through screw thread connection in the upper surface of first casing (1).