CN214313113U

CN214313113U - Fuse type low-voltage power switch

Info

Publication number: CN214313113U
Application number: CN202120226160.3U
Authority: CN
Inventors: 李黛露
Original assignee: Suzhou Guanghuixiang Precision Technology Co ltd
Current assignee: Suzhou Guanghuixiang Precision Technology Co ltd
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-09-28
Anticipated expiration: 2031-01-27

Abstract

The utility model discloses a fuse-type low-voltage power switch, which comprises an insulating base, a first clamping step is fixedly arranged at the top of the insulating base, an insulating column is fixedly connected at the top end of the first clamping step, a gate hinging seat is arranged at one side of the first clamping step, a first gate is fixedly connected at the top end of the gate hinging seat, a second gate is fixedly connected at one side of the first gate, which is far away from the insulating column, a fusing device is clamped at the bottom end of the second gate, a fusing piece is arranged at one end of the fusing device, a conductive shaft is clamped at one end of the second gate, the fusing piece is clamped with the second gate through the clamping arrangement of the second gate and the conductive shaft, the closing valve is very tight, the safety of the fusing switch is improved, if the fusing piece is broken due to overlarge current, the second gate on the conductive shaft moves upwards along with the fusing piece, and meanwhile, the first gate is contacted with the insulating column, the service life of the fuse type low-voltage power switch is prolonged by powering off the power switch.

Description

Fuse type low-voltage power switch

Technical Field

The utility model belongs to the technical field of switch, concretely relates to fuse formula low voltage power switch.

Background

The fuse is an electric appliance which fuses a melt by heat generated by itself to open a circuit when a current exceeds a predetermined value. The fuse melts the melt by the heat generated by the fuse after the current exceeds a specified value for a period of time, so as to cut off the circuit; a current protector is made by applying the principle. The fuse is widely applied to high and low voltage distribution systems, control systems and electric equipment, and is one of the most commonly applied protection devices as a short circuit and overcurrent protector.

The metal conductor is used as a fuse body to be connected in series in a circuit, and when overload or short-circuit current passes through the fuse body, the fuse body is fused due to self heating, so that the circuit is broken. The fuse has simple structure and convenient use, is widely used as a low-voltage fuse type low-voltage switch of a protective device in an electric power system, various electrical equipment and household appliances, and is widely used for outgoing lines at the low-voltage side of a rack type transformer due to the advantages of low manufacturing cost, stable operation and convenient maintenance. The existing low-voltage fuse type low-voltage switch generally comprises a mounting base, a fixed contact, a moving contact and a fuse link, wherein the fixed contact and the moving contact are mounted on the mounting base; the static contact and the moving contact are respectively arranged on the insulating column. In an electric power system, a low-voltage fuse type low-voltage disconnecting link has an important function of controlling the on-off of current.

The existing fusing power switch technology has the following problems: the existing low-voltage fusing type low-voltage switch has certain potential safety hazard because the closing is not tight enough when the switch is closed, and has the problem of short service life.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fuse-type low voltage power switch to solve the current low pressure fuse-type low voltage switch who proposes in the above-mentioned background art because when the switch closure, often because close enough inseparable of combined floodgate, and there is certain potential safety hazard, and have the short problem of life.

In order to achieve the above object, the utility model provides a following technical scheme: a fuse-type low-voltage power switch comprises an insulating base, wherein a first clamping step is fixedly installed at the top of the insulating base, an insulating column is fixedly connected to the top end of the first clamping step, a first fixing plate is fixedly connected to one side of the first clamping step, a gate hinge seat is arranged on one side, away from the first fixing plate, of the first clamping step, a first gate is fixedly connected to the top end of the gate hinge seat, a bolt is arranged inside the first gate, one end of the bolt is in threaded connection with a screw piece, one side of the screw piece is fixedly connected with a nut, a second gate is fixedly connected to one side, away from the insulating column, of the first gate, a fuse device is clamped at the bottom end of the second gate, a fuse piece is arranged at one end of the fuse device, a conductive shaft is clamped at one end of the second gate, and a second clamping step is fixedly connected to the bottom end of the conductive shaft, one end of the second clamping step, which is far away from the first gate, is fixedly connected with a second fixing plate.

Preferably, the first gate and the second gate are arranged vertically.

Preferably, one side fixedly connected with third fixed plate that the articulated seat of gate was kept away from to insulating base, the right side of third fixed plate is provided with strutting arrangement.

Preferably, the fuse link is arranged in the middle of the second gate and is abutted against two ends of the inside of the second gate.

Preferably, the fusing device is perpendicular to the second gate, and the conductive shaft is parallel to the fuse link.

Preferably, the gate hinge seat is arranged in the middle of the insulating base.

Compared with the prior art, the utility model provides a fuse-type low voltage power switch possesses following beneficial effect: the utility model discloses a setting of second gate and conducting shaft joint, the conducting shaft sets up on second joint step, because the fuse link setting in the inside of second gate and with second gate joint, it is very inseparable to close the valve closure, the security of fusing switch has been improved, if be the fuse link fracture back, the epaxial second gate of conducting shaft also upwards moves thereupon, meanwhile first gate contacts with the insulated column, the effect of outage has been reached, it can reuse to change the fuse link, fusing formula low voltage power switch's life has been improved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 is a front view of a power switch according to the present invention;

fig. 2 is a right side view of the power switch of the present invention;

fig. 3 is a rear view of the power switch of the present invention;

in the figure: 1. a first fixing plate; 2. a first clamping step; 3. an insulating base; 4. a first gate; 5. a bolt; 6. a fusing device; 7. a second fixing plate; 8. a conductive shaft; 9. a second gate; 10. a fuse link; 11. a gate hinge seat; 12. a nut; 13. a snail sheet; 14. an insulating column; 15. a second clamping step; 16. a third fixing plate; 17. and a supporting device.

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. 1-3, the present invention provides a fuse-type low-voltage power switch, which comprises: a fuse-type low-voltage power switch comprises an insulating base 3, wherein a first clamping step 2 is fixedly installed at the top of the insulating base 3, the first clamping step 2 can conduct electricity, an insulating column 14 is fixedly connected to the top end of the first clamping step 2, a first fixing plate 1 is fixedly connected to one side of the first clamping step 2, and a gate hinge seat 11 is arranged on one side, away from the first fixing plate 1, of the first clamping step 2;

the gate hinge seat 11 is arranged in the middle of the insulating base 3, the top end of the gate hinge seat 11 is fixedly connected with a first gate 4, the first gate 4 can move to be abutted against an insulating column 14, a bolt 5 is arranged inside the first gate 4, one end of the bolt 5 is in threaded connection with a screw sheet 13, one side of the screw sheet 13 is fixedly connected with a nut 12, the conduction of a switch can be controlled through the nut 12, one side, far away from the insulating column 14, of the first gate 4 is fixedly connected with a second gate 9, the first gate 4 and the second gate 9 are vertically arranged and are both connected with the gate hinge seat 11, the bottom end of the second gate 9 is clamped with a fusing device 6, one side of the fusing device 6 is provided with a fusing sheet 10, and the fusing sheet 10 is arranged in the middle of the second gate 9 and is abutted against two ends inside the second gate 9;

a conductive shaft 8 is clamped at one end of a second gate 9, a fusing device 6 is perpendicular to the second gate 9, the conductive shaft 8 is parallel to a fuse link 10, a second clamping step 15 is fixedly connected to the bottom end of the conductive shaft 8, the second clamping step 15 can conduct electricity, a second fixing plate 7 is fixedly connected to one end, away from the first gate 4, of the second clamping step 15, a third fixing plate 16 is fixedly connected to one side, away from a gate hinge seat 11, of an insulating base 3, a supporting device 17 is arranged on the right side of the third fixing plate 16, the third fixing plate 16 and the supporting device 17 facilitate positioning and installation of a power switch, the first fixing plate 1, the second fixing plate 7 and the third fixing plate 16 are consistent in specification and are provided with through holes, and energization and fuse connection are facilitated;

second gate 9 and conductive shaft 8 joint, conductive shaft 8 sets up on second joint step 15, because fuse-link 10 sets up in the inside of second gate 9 and with second gate 9 joint, it is very inseparable to close the valve closure, the security of fusing switch has been improved, if fuse-link 10 fracture back, second gate 9 on the conductive shaft 8 also upward movement thereupon, meanwhile first gate 4 contacts with insulated column 14, the effect of outage has been reached, it can reuse to change fuse-link 10, fusing formula low voltage power switch's life has been improved.

The utility model discloses a theory of operation and use flow: the utility model discloses install the back well, the one end and the 8 joints of conductive shaft of second gate 9, fuse-link 10 also with 9 joints of second gate, the security of switch has been promoted greatly, conductive shaft 8 is electrically conductive through second fixed plate 7, first gate 4 sets up perpendicularly, after the excessive high temperature that leads to of electric current volume, fuse-link 10 melts, second gate 9's frictional force is less than elasticity, thereby disconnection second gate 9 and conductive shaft 8's be connected, make first gate 4 contact with insulated column 14, the low voltage power switch outage, change fuse-link 10 on the fusing device 6, move second gate 9 to with fuse-link 10 joints, can electrify once more, convenient and fast has improved fusing formula low voltage power switch's life simultaneously.

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 a fuse-type low voltage power switch, includes insulator foot (3), its characterized in that: the insulation structure is characterized in that a first clamping step (2) is fixedly mounted at the top of the insulation base (3), an insulation column (14) is fixedly connected to the top end of the first clamping step (2), a first fixing plate (1) is fixedly connected to one side of the first clamping step (2), a gate hinging seat (11) is arranged on one side, away from the first fixing plate (1), of the first clamping step (2), a first gate (4) is fixedly connected to the top end of the gate hinging seat (11), a bolt (5) is arranged inside the first gate (4), a screw sheet (13) is in threaded connection with one end of the bolt (5), a nut (12) is fixedly connected to one side of the screw sheet (13), a second gate (9) is fixedly connected to one side, away from the insulation column (14), of the first gate (4), and a fusing device (6) is clamped to the bottom end of the second gate (9), the one end of fusing device (6) is provided with fuse link (10), the one end joint of second gate (9) has conducting shaft (8), the bottom fixedly connected with second joint step (15) of conducting shaft (8), the one end fixedly connected with second fixed plate (7) of first gate (4) are kept away from to second joint step (15).

2. The fused low voltage power switch of claim 1, further comprising: the first gate (4) and the second gate (9) are vertically arranged.

3. The fused low voltage power switch of claim 1, further comprising: one side fixedly connected with third fixed plate (16) that gate hinge seat (11) was kept away from in insulating base (3), the right side of third fixed plate (16) is provided with strutting arrangement (17).

4. The fused low voltage power switch of claim 1, further comprising: and the fuse link (10) is arranged in the middle of the second gate (9) and is abutted against two ends of the inside of the second gate (9).

5. The fused low voltage power switch of claim 1, further comprising: the fusing device (6) is perpendicular to the second gate (9), and the conductive shaft (8) is parallel to the fuse link (10).

6. The fused low voltage power switch of claim 1, further comprising: the gate hinge seat (11) is arranged in the middle of the insulating base (3).