CN209784519U - Special auxiliary buckle for mutual inductor calibration - Google Patents

Abstract

the utility model discloses a special supplementary buckle of mutual-inductor check-up, the screw comprises a screw, be provided with the screw cap on the screw, the cover is equipped with the casing on the screw cap, just the lateral wall of casing is installed and is used for blocking the snak link of screw cap, and be provided with at the top of casing and contact with the screw cap and be used for cliping the centre gripping subassembly of bare copper line, pass through the centre gripping subassembly during use, can make its when measuring the mutual-inductor, replace point and face contact with the form of face and face contact, can effectually avoid because the area of contact that point and face connect is little, lead to appearing contact failure's problem easily, secondly the antiskid twill that sets up can effectual increase frictional force, avoid droing of copper line, simultaneously its casing, the surface of back splint and punch holder all scribbles and is equipped with the insulated paint, can avoid the problem that the staff can appear electrocuteeing.

Description

special auxiliary buckle for mutual inductor calibration

Technical Field

The embodiment of the utility model provides a relate to mutual-inductor check-up technical field, concretely relates to special supplementary buckle of mutual-inductor check-up.

Background

The mutual inductor is also called as a transformer for instruments, is a general name of a current transformer and a voltage transformer, namely, alternating current voltage and large current are reduced to values which can be directly measured by the instrument in proportion, so that the direct measurement of the instrument is convenient, a power supply is provided for relay protection and an automatic device, the mutual inductor is matched with the measuring instrument and a metering device, the voltage, the current and the electric energy of a primary system can be measured, and the mutual inductor is matched with the relay protection and the automatic device to form electric protection and automatic control on various faults of a power grid.

At present, measurement center can carry out the check-up to thousands of electric currents, voltage transformer every year, and the way of using in the check-up process is still that the fastener carries out the connection test, in the operation of a large amount of repeatability, has consumed a large amount of time, and the operating efficiency is low, often has bad contact's risk simultaneously, and in addition, the single measurement operating time is long, if there is the clip bad contact condition in the middle of the time, will consume more unnecessary repetitive operation time again, has to be solved in our.

SUMMERY OF THE UTILITY MODEL

Therefore, the embodiment of the utility model provides a special supplementary buckle of mutual-inductor check-up, the snak link that sets up through the centre gripping subassembly cooperation that sets up can make it when the contact to face and face contact replace point and face contact, with the form of adopting the fastener to contact with point and face contact among the solution prior art, easily cause contact failure's problem.

In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:

The utility model provides a special supplementary buckle of mutual-inductor check-up, includes the screw, be provided with the screw cap on the screw, the cover is equipped with the casing on the screw cap, just the lateral wall of casing is installed and is used for blocking the snak link of screw cap, and is provided with the centre gripping subassembly that just is used for cliping bare copper line with the screw cap contact at the top of casing.

As a preferred scheme of the utility model, the centre gripping subassembly is including setting up the lower plate on the casing, it is connected with the punch holder to rotate on the lower plate, be provided with on the punch holder and be used for driving punch holder pivoted back splint, the punch holder becomes the obtuse angle setting with the back splint, just still be provided with between punch holder and the back splint and prevent disconnected connecting rod.

as an optimized scheme of the utility model, be provided with two spacing lugs that are used for restricting bare copper line clamping position on the lower plate, just be provided with the spacing recess that corresponds with spacing lug on the punch holder.

As an optimized scheme of the utility model, the surface of lower plate still is provided with the anti-skidding twill of arranging in between two spacing lugs.

As a preferred scheme of the utility model, the snak link is including seting up the logical groove at the casing lateral wall lead to inslot sliding connection has the mounting panel, and has the card that is used for blocking the screw cap through spring coupling on the mounting panel.

As an optimized proposal of the utility model, one side of the mounting plate, which is far away from the card, is provided with a push-pull rod.

As an optimized scheme of the utility model, the casing is hexagonal prism structure, the internal diameter of casing is greater than the screw cap external diameter and is less than the width sum of screw cap external diameter and card.

As an optimized scheme of the utility model, the snak link is provided with threely at least.

As an optimized proposal of the utility model, the surfaces of the upper splint, the rear splint and the shell are coated with insulating paint.

The utility model discloses an embodiment has following advantage:

the utility model discloses, pass through the centre gripping subassembly during the use, can make it when measuring mutual-inductor to the form of face and face contact replaces point and face contact, can effectually avoid because the area of contact that the point meets with the face is little, lead to appearing contact failure's problem easily, secondly the antiskid twill that sets up can effectual increase frictional force, avoid droing of copper line, the surface of its casing, back splint and punch holder all scribbles simultaneously and is equipped with insulating paint, can avoid the problem that the staff can appear electrocuteeing when using, the security is higher.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

the structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

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

FIG. 2 is a schematic structural diagram of a screw according to an embodiment of the present invention;

Fig. 3 is a schematic structural view of a spring buckle according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of a clamping assembly according to an embodiment of the present invention;

FIG. 5 is a schematic view of the installation structure of the present invention

fig. 6 is a perspective view of the present invention.

In the figure:

1-a screw; 2-a screw cap; 3-a shell; 4-a spring buckle; 5-a clamping assembly;

401-through slots; 402-a mounting plate; 403-card; 404-a push-pull rod;

501-lower splint; 502-upper splint; 503-rear splint; 504-break prevention links; 505-a limit bump; 506-limiting groove; 507-antiskid twill.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. 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.

As shown in fig. 1, 5 and 6, the utility model provides a special supplementary buckle of mutual-inductor check-up, including screw 1, be provided with screw cap 2 on the screw 1, the cover is equipped with casing 3 on the screw cap 2, just the snak link 4 that is used for blocking screw cap 2 is installed to the lateral wall of casing 3, and is provided with at the top of casing 3 and contacts and be used for cliping the centre gripping subassembly 5 of bare copper line with screw cap 2.

As shown in fig. 1, 4 and 5, the clamping assembly 5 includes a lower plate 501 disposed on the housing 3, an upper plate 502 is rotatably connected to the lower plate 501, a rear plate 503 disposed on the upper plate 502 for driving the upper plate 502 to rotate, the upper plate 502 and the rear plate 503 are disposed at an obtuse angle, a break-proof connecting rod 504 is further disposed between the upper plate 502 and the rear plate 503, and a torsion spring is disposed at a rotational connection between the lower plate 501 and the upper plate 502 for providing a clamping force for the upper plate 502. There is an angle between punch holder 502 and back splint 503, can be convenient for the user when using, through pressing back splint 503, reach the purpose that makes punch holder 502 open, and because this contained angle is great, consequently when long-time use, it can appear the problem that back splint 503 is pulled flat, consequently increases and prevents disconnected connecting rod 504, can effectually increase its holistic structural strength, avoids appearing unable problem that makes punch holder 502 motion through pressing back splint 503.

In addition, be provided with two spacing lugs 505 that are used for restricting bare copper wire clamping position on the lower plate 501, just be provided with the spacing recess 506 that corresponds with spacing lug 505 on the upper plate 502, the surface of lower plate 501 still is provided with the anti-skidding twill 507 of arranging in between two spacing lugs 505, the spacing lug 505 and the spacing recess 506 that set up can carry on spacingly to the position of placing of bare copper wire, can avoid bare copper wire clamping position to be nonstandard, lead to appearing contact failure's problem easily, its centre gripping subassembly 5 is whole to the metal material, and the form of setting anti-skidding twill 507 accessible impressed watermark on lower plate 501 is processed, can be effectual when centre gripping bare copper wire, increase its frictional force, avoid the problem that bare copper wire drops when detecting.

as shown in fig. 1, fig. 2, fig. 3 and fig. 5, the snapper 4 includes the logical groove 401 of seting up at the casing 3 lateral wall the sliding connection has mounting panel 402 in leading to the groove 401, and has the card 403 that is used for blocking the screw 1 cap through spring coupling on mounting panel 402, one side that card 403 was kept away from to mounting panel 402 is provided with push-and-pull rod 404, when using, can fix the device on the screw cap 2 through the snapper 4 with casing 3 through the form of pressing, namely through the card 403 card at the lower extreme of screw cap 2, in order to avoid it to drop, card 403 has certain radian, so that block screw cap 2 through the snapper 4, when dismantling, then only need go out the push-and-pull rod 404, can drive the card and receive in leading to the groove 401, and then can normally dismantle the device 403, the dismouting all can be more convenient.

What need supplement is, casing 3 is hexagonal prism structure, casing 3's internal diameter is greater than the 2 external diameters of screw cap and is less than the width sum of 2 external diameters of screw cap and card 403, spring buckle 4 is provided with threely at least, and control casing 3's internal diameter size can realize when fixing screw cap 2 through spring buckle 4, still can not cause the installation too compact, leads to installing comparatively arduous problem, and hexagonal prism structure's casing 3, and the shape of laminating screw cap 2 that can be more, more be convenient for install.

The surfaces of the upper clamping plate 502, the rear clamping plate 503 and the shell 3 are coated with insulating paint, so that the situation that when the shell is used, the shell discharges electricity to adjacent conductors to cause electric shock to a user when the shell is used can be avoided, and the safety is higher.

although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (9)

1. The utility model provides a special supplementary buckle of mutual-inductor check-up, includes screw (1), be provided with screw cap (2) on screw (1), its characterized in that, the cover is equipped with casing (3) on screw cap (2), just the lateral wall of casing (3) is installed and is used for blocking snak link (4) of screw cap (2), and is provided with centre gripping subassembly (5) that are used for cliping bare copper line at the top of casing (3), centre gripping subassembly (5) are connected with screw cap (2) contact.

2. The auxiliary buckle special for transformer verification according to claim 1, wherein the clamping assembly (5) comprises a lower clamping plate (501) arranged on the housing (3), and an upper clamping plate (502) is rotatably connected to the lower clamping plate (501); the upper clamping plate (502) is provided with a rear clamping plate (503) for driving the upper clamping plate (502) to rotate, and the upper clamping plate (502) and the rear clamping plate (503) are arranged at an obtuse angle; and a break-proof connecting rod (504) is arranged between the upper clamping plate (502) and the rear clamping plate (503).

3. The auxiliary buckle special for transformer verification according to claim 2, wherein two limiting protrusions (505) for limiting the clamping position of the bare copper wire are arranged on the lower clamp plate (501), and a limiting groove (506) corresponding to the limiting protrusion (505) is arranged on the upper clamp plate (502).

4. The auxiliary buckle special for transformer verification according to claim 2, wherein the surface of the lower clamp plate (501) is further provided with an anti-slip twill (507) disposed between the two limit protrusions (505).

5. The auxiliary buckle special for transformer verification according to claim 1, wherein the spring buckle (4) comprises a through groove (401) formed in the side wall of the shell (3), a mounting plate (402) is slidably connected in the through groove (401), and a clamping piece (403) for clamping a screw (1) cap is connected to the mounting plate (402) through a spring.

6. The auxiliary buckle special for transformer verification as claimed in claim 5, wherein a push-pull rod (404) is arranged on the side of the mounting plate (402) far away from the card (403).

7. The auxiliary buckle special for mutual inductor verification according to claim 5, wherein the shell (3) is of a hexagonal prism structure, and the inner diameter of the shell (3) is larger than the outer diameter of the screw cap (2) and smaller than the sum of the outer diameter of the screw cap (2) and the width of the card (403).

8. the auxiliary buckle special for transformer verification according to claim 1, wherein at least three spring buckles (4) are provided.

9. The auxiliary buckle special for transformer verification according to claim 2, wherein the surfaces of the upper clamp plate (502), the rear clamp plate (503) and the shell (3) are coated with insulating paint.