CN210245232U

CN210245232U - Accurate current transformer

Info

Publication number: CN210245232U
Application number: CN201920762752.XU
Authority: CN
Inventors: Dehui Li; 李德辉; Zhiguang Li; 李志广
Original assignee: Baoding Hengguang Electric Machinery Co ltd
Current assignee: Baoding Hengguang Electric Machinery Co ltd
Priority date: 2019-05-25
Filing date: 2019-05-25
Publication date: 2020-04-03
Anticipated expiration: 2029-05-25

Abstract

The utility model discloses an accurate current transformer, including current transformer main part, latched device and fixed establishment, the current transformer main part includes upper ring, base and lower ring, the fixed establishment includes the draw runner, base bottom one side is provided with stopper A, draw runner one end is provided with stopper B, the base bottom has seted up the dovetail, the draw runner top is provided with the dovetail, base and draw runner pass through dovetail and dovetail sliding connection; through install fixed establishment additional in current transformer bottom for current transformer can match unmovable installation guide rail, makes ann more firm, has improved the installation effectiveness, also conveniently dismantles simultaneously, changes, overhauls.

Description

Accurate current transformer

Technical Field

The utility model belongs to the technical field of the high voltage distribution part, concretely relates to accurate type current transformer.

Background

Current transformer is the part commonly used among the distribution device, and current transformer generally includes the coil body and wears to establish the conductor in the through-hole at coil body middle part, and the outside of conductor generally all is equipped with insulating cover, and the current transformer principle is made according to the electromagnetic induction principle, and current transformer comprises closed iron core and winding, and the various current transformer that nevertheless appears in the market still has various problems, is difficult to satisfy the demand of actual production.

The utility model discloses a current transformer as utility model discloses that the bulletin number is CN207217261U, it has solved insulating cover and has broken away from this condition of coil easily, but has not solved current transformer and is difficult for the installation, is difficult to mate different installation guide rails, has influenced the problem of installation effectiveness, for this reason we propose an accurate type current transformer.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an accurate type current transformer to propose current transformer difficult installation among the solution above-mentioned background art, be difficult to match different installation guide rails, influenced the problem of installation effectiveness.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an accurate type current transformer, includes current transformer main part, latched device and fixed establishment, the current transformer main part is including fitting with a contraceptive ring, base and lower ring, fixed establishment includes the draw runner, base bottom one side is provided with stopper A, draw runner one end is provided with stopper B, the dovetail has been seted up to the base bottom, the draw runner top is provided with the dovetail, base and draw runner pass through dovetail and dovetail sliding connection.

Preferably, the latching mechanism comprises a groove, one end of the groove is fixedly connected to the lower ring, a fixed hook B is arranged inside the groove, and the fixed hook B is rotatably connected with the groove through a rotating rod.

Preferably, the other end of the sliding strip is fixedly connected with a pulling block, one side of the pulling block is fixedly connected with a tension spring A, and the other end of the tension spring A is fixedly connected to one side of the base.

Preferably, a circular groove is formed in one side of the fixing hook B, a return spring is arranged inside the circular groove, and the other end of the return spring is fixedly connected to one side of the groove.

Preferably, a pressing rod is arranged on one side of the groove, the pressing rod penetrates through the groove, and a limiting ring is arranged on the outer surface of the pressing rod.

Preferably, one end of the limiting ring is fixedly connected with a tension spring B, the other end of the tension spring B is fixedly connected to one side of the groove, and the tension spring B penetrates through the pressing rod.

Preferably, the pressing rod is located at the bottom end of the return spring, a round block is arranged at one end of the pressing rod, and the round block is located on the outer side of the groove.

Preferably, the top end surface of the fixing hook B is provided with an inclined plane, and the top end surface of the fixing hook B and the top end surface of the groove are in the same horizontal plane.

Preferably, the bottom end of one side of the upper ring is fixedly connected with a fixed hook A, and the fixed hook A is clamped with a fixed hook B.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) through install fixed establishment additional in current transformer bottom for current transformer can match unmovable installation guide rail, makes ann more firm, has improved the installation effectiveness, also conveniently dismantles simultaneously, changes, overhauls.

(2) Through install locking mechanism additional between fitting with a contraceptive ring and lower ring for it is fixed more convenient high-efficient with the lower ring to fit with a contraceptive ring, and the test of being convenient for, maintenance have avoided fixing because of the bolt, and the iron fillings that produce adsorb on the mutual-inductor, have increased the installation hidden danger.

Drawings

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

FIG. 2 is a schematic view of the structure of the pull block of the present invention;

FIG. 3 is a schematic side view of the slide bar of the present invention;

FIG. 4 is a schematic cross-sectional view of the latch mechanism of the present invention;

fig. 5 is a schematic structural view of a fixing hook B of the present invention;

in the figure: 1. ring fitting; 2. a fixed hook A; 3. a pressing rod; 4. a lower ring; 5. a base; 6. a limiting block A; 7. a limiting block B; 8. a slide bar; 9. rotating the rod; 10. pulling the block; 11. a tension spring A; 12. a groove; 13. a fixed hook B; 14. a return spring; 15. a limiting ring; 16. a tension spring B; 17. a circular groove.

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.

Referring to fig. 1-5, the present invention provides a technical solution of an accurate current transformer: the utility model provides an accurate type current transformer, includes current transformer main part, latched device and fixed establishment, and the current transformer main part is including fitting with a contraceptive ring 1, base 5 and lower ring 4, and fixed establishment includes

draw runner

8, and 5 bottom one side of base are provided with stopper A6, and 8 one end of draw runner are provided with stopper B7, and the dovetail has been seted up to 5 bottoms of base, and 8 tops of draw runner are provided with the dovetail, and base 5 and draw runner 8 pass through dovetail and dovetail sliding connection.

In order to facilitate the rotation of the fixing hook B13, in the present embodiment, it is preferable that the locking mechanism includes a groove 12, one end of the groove 12 is fixedly connected to the lower ring 4, a fixing hook B13 is disposed inside the groove 12, and the fixing hook B13 is rotatably connected to the groove 12 by a rotating rod 9.

In order to facilitate the extraction and resetting of the slide bar 8, in the embodiment, preferably, the other end of the slide bar 8 is fixedly connected with a pulling block 10, one side of the pulling block 10 is fixedly connected with a tension spring a11, and the other end of the tension spring a11 is fixedly connected to one side of the base 5.

In order to prevent the return spring 14 from sliding out of the fixing hook B13, in the present embodiment, it is preferable that a circular groove 17 is provided at one side of the fixing hook B13, the return spring 14 is provided inside the circular groove 17, and the other end of the return spring 14 is fixedly connected to one side of the groove 12.

In order to facilitate the separation of the fixing hook B13 from the fixing hook a2, in this embodiment, preferably, a pressing rod 3 is disposed at one side of the groove 12, the pressing rod 3 penetrates through the groove 12, and a stop ring 15 is disposed on an outer surface of the pressing rod 3.

In order to facilitate the resetting of the pressing rod 3, in the embodiment, preferably, one end of the limiting ring 15 is fixedly connected with a tension spring B16, the other end of the tension spring B16 is fixedly connected to one side of the groove 12, and the tension spring B16 penetrates through the pressing rod 3.

In order to press the pressing rod 3 conveniently, in the embodiment, it is preferable that the pressing rod 3 is located at the bottom end of the return spring 14, and a round block is arranged at one end of the pressing rod 3 and is located outside the groove 12.

In order to facilitate the engagement of the fixing hook a2 with the fixing hook B13 and improve the sealing performance between the upper ring 1 and the lower ring 4, in the present embodiment, it is preferable that the top end surface of the fixing hook B13 is provided with a slope, and the top end surface of the fixing hook B13 is at the same level as the top end surface of the groove 12.

In order to fix the upper ring 1 and the lower ring 4, in this embodiment, preferably, a fixing hook a2 is fixedly connected to a bottom end of one side of the upper ring 1, and the fixing hook a2 is engaged with the fixing hook B13.

The utility model discloses a theory of operation and use flow: after the device is accomplished, the both sides that hold between the fingers and draw piece 10 are drawn outward, under the effect of dovetail and forked tail piece, make draw bar 8 slide outward, aim at the installation guide rail, then loosen and draw piece 10, under extension spring A11's effect, make and draw piece 10 to reset, under the drive of draw bar 8, thereby make stopper B7 block the installation guide rail with stopper A6, and then accomplish the fixed to the current transformer main part, will fit with a contraceptive ring 1 and press down, under the effect of pressure, make fixed hook A2 and fixed hook B13 block, under reset spring 14's effect, make fixed hook B13 support fixed hook A2, press down when needing to open and press pole 3, under the effect of dwang 9, fixed hook B13 is rotatory around dwang 9, lift up ring 1 this moment, the operation is accomplished.

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. The utility model provides an accurate type current transformer, includes current transformer main part, latched device and fixed establishment, its characterized in that: the current transformer main part is including fitting with a contraceptive ring (1), base (5) and lower ring (4), fixed establishment includes draw runner (8), base (5) bottom one side is provided with stopper A (6), draw runner (8) one end is provided with stopper B (7), the dovetail has been seted up to base (5) bottom, draw runner (8) top is provided with the dovetail, base (5) and draw runner (8) are through dovetail and dovetail sliding connection.

2. A precision current transformer according to claim 1, characterized in that: latching mechanism includes recess (12), recess (12) one end fixed connection is in lower ring (4), recess (12) inside is provided with fixed hook B (13), fixed hook B (13) are connected through dwang (9) and recess (12) rotation.

3. A precision current transformer according to claim 1, characterized in that: the other end of the sliding strip (8) is fixedly connected with a pulling block (10), one side of the pulling block (10) is fixedly connected with a tension spring A (11), and the other end of the tension spring A (11) is fixedly connected to one side of the base (5).

4. A precision current transformer according to claim 2, wherein: fixed hook B (13) one side is provided with circular slot (17), circular slot (17) inside is provided with reset spring (14), reset spring (14) other end fixed connection is in recess (12) one side.

5. A precision current transformer according to claim 4, characterized in that: a pressing rod (3) is arranged on one side of the groove (12), the pressing rod (3) penetrates through the groove (12), and a limiting ring (15) is arranged on the outer surface of the pressing rod (3).

6. A precision current transformer according to claim 5, characterized in that: spacing ring (15) one end fixedly connected with extension spring B (16), extension spring B (16) other end fixed connection is in one side of recess (12), extension spring B (16) run through in pressing pole (3).

7. A precision current transformer according to claim 5, characterized in that: the pressing rod (3) is located at the bottom end of the return spring (14), a round block is arranged at one end of the pressing rod (3), and the round block is located on the outer side of the groove (12).

8. A precision current transformer according to claim 2, wherein: the top end surface of the fixed hook B (13) is provided with an inclined plane, and the top end surface of the fixed hook B (13) and the top end surface of the groove (12) are in the same horizontal plane.

9. A precision current transformer according to claim 1, characterized in that: the bottom end of one side of the upper ring (1) is fixedly connected with a fixed hook A (2), and the fixed hook A (2) is clamped with a fixed hook B (13).