CN218887091U

CN218887091U - Small-sized circuit breaker

Info

Publication number: CN218887091U
Application number: CN202223528897.4U
Authority: CN
Inventors: 管巍伟; 胡金桃; 李明
Original assignee: Longwei Electric Co ltd
Current assignee: Longwei Electric Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-04-18
Anticipated expiration: 2032-12-26

Abstract

The utility model relates to a circuit breaker technical field, specifically a miniature circuit breaker, the utility model discloses a fixed plate that is fixed in the block terminal and the circuit breaker body that links to each other with the fixed plate, both ends all are provided with the dead lever about the rear side of circuit breaker body, and the slot has been seted up on the surface of dead lever, have seted up the mounting groove in the fixed plate, are provided with locking mechanism in the mounting groove, and locking mechanism passes through the slot and dead lever joint; the utility model discloses a be provided with the dead lever through the rear end at the circuit breaker body, and be provided with locking mechanism in the fixed plate, through rotating two-way threaded rod, the inserted bar of both sides reciprocates about two-way threaded rod can drive to let the inserted bar insert and fix in the mounting groove on dead lever surface, just so need not cover the upper and lower both ends of circuit breaker body, can not hinder the connection of wire.

Description

Small-sized circuit breaker

Technical Field

The utility model relates to a circuit breaker technical field, specific is a miniature circuit breaker.

Background

The circuit breaker is a device for providing power utilization safety protection for an electric appliance, an intelligent high-voltage prevention device is arranged in the circuit breaker, and the internal protection device can be intelligently started under the abnormal condition that the electric appliance is subjected to instantaneous high voltage, so that the power utilization safety of the electric appliance at the rear end is ensured.

The existing circuit breaker is usually installed in a distribution box directly through screws during installation, but the circuit breaker is not very convenient when a circuit breaker main body is damaged and needs to be replaced, and in the prior art, for example, application number CN2021233933240 discloses a miniature circuit breaker which specifically comprises a circuit breaker main body, a lower fixed buckle plate, an upper fixed buckle plate, a pull ring and a spring; buckle rebound on passing through the slide bar drive through the pulling pull ring, the spring on the slide bar receives the compression simultaneously, places the lower extreme of circuit breaker main part on fixed buckle down, loosens the pull ring simultaneously, and the spring bullet is stretched and is driven the last buckle of slide bar lower extreme and support circuit breaker main part upper end, reaches the function to circuit breaker main part installation.

However, in the conventional circuit breaker, the wires are connected from the upper and lower end surfaces of the circuit breaker, and in the application disclosed in CN2021233933240, the upper and lower surfaces of the circuit breaker are clamped and fixed by the upper and lower fixing clips, so that the connection of the wires is inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a miniature circuit breaker to solve the problem that proposes among the above-mentioned background art.

The purpose of the utility model can be realized by the following technical proposal:

the utility model provides a miniature circuit breaker, is including being fixed in the fixed plate in the block terminal and the circuit breaker body that links to each other with the fixed plate, both ends all are provided with the dead lever about the rear side of circuit breaker body, and the slot has been seted up on the surface of dead lever, have seted up the mounting groove in the fixed plate, are provided with locking mechanism in the mounting groove, and locking mechanism passes through slot and dead lever joint.

Furthermore, the locking mechanism comprises two movable plates, an insertion rod is arranged on the outer side, away from each other, of the two movable plates and inserted into the insertion slot, and a plurality of support rods are arranged between the two movable plates and used for driving the two movable plates to move oppositely.

Further, the inboard of fly leaf is fixed to link to each other has two fixed blocks, and the one end of bracing piece rotates with the fixed block and links to each other, is provided with spacing slider between two upper and lower bracing pieces, and the bracing piece is kept away from the one end of fixed block and is rotated with spacing slider and link to each other, is provided with two-way threaded rod between two spacing sliders, and two spacing sliders are located two-way threaded rod opposite thread department in both ends.

Furthermore, a first sliding block is fixedly connected to the rear end of the movable plate, a first sliding groove matched with the first sliding block is formed in the mounting groove, and the movable plate slides in the first sliding groove through the first sliding block.

Furthermore, the rear end of the limiting slide block is fixedly connected with a second slide block, a second slide groove matched with the second slide block is formed in the mounting groove, and the limiting slide block slides in the second slide groove through the second slide block.

Further, the both ends cover of two-way threaded rod is equipped with telescopic sleeve, and telescopic sleeve and two-way threaded rod slide and link to each other, and the one end stationary phase that the two-way threaded rod was kept away from to telescopic sleeve even has fixed handle.

The utility model has the advantages that:

1. the utility model discloses a be provided with the dead lever at the rear end of circuit breaker body, and be provided with locking mechanism in the fixed plate, through rotating the two-way threaded rod, the two-way threaded rod can drive the inserted bar of upper and lower both sides and reciprocate to let the inserted bar insert the mounting groove on dead lever surface and fix, just so need not cover the upper and lower both ends of circuit breaker body, can not hinder the connection of wire;

2. the utility model discloses a both ends at two-way threaded rod all are provided with the telescope tube, and the telescope tube can slide around going on along two-way threaded rod, like this, after fixing the circuit breaker, just can inwards promote the telescope tube, makes it to the internal contraction, protects whole two-way threaded rod.

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, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts;

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

fig. 2 is a schematic view of the internal structure of the fixing plate of the present invention;

FIG. 3 is a schematic view of the connection between the locking mechanism and the fixed rod of the present invention;

fig. 4 is a schematic view of the locking mechanism of the present invention.

The reference numbers in the figures are as follows:

1. a fixing plate; 11. mounting grooves; 12. a first chute; 13. a second chute; 2. a circuit breaker body; 3. fixing the rod; 31. a slot; 4. a locking mechanism; 41. a movable plate; 411. a fixed block; 412. a first slider; 42. inserting a rod; 43. a support bar; 44. a limiting slide block; 441. a second slider; 45. a bidirectional threaded rod; 46. a telescopic sleeve; 47. and fixing the handle.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, a miniature circuit breaker comprises a fixed plate 1 fixed in a distribution box and a breaker body 2 connected with the fixed plate 1, wherein fixed rods 3 are arranged at the upper end and the lower end of the rear side of the breaker body 2, the fixed rods 3 are transversely arranged, slots 31 are formed in the surface of the fixed rods 3, mounting grooves 11 are formed in the fixed plate 1, locking mechanisms 4 are arranged in the mounting grooves 11, and the upper movable ends and the lower movable ends of the locking mechanisms 4 are connected with the fixed rods 3 in a clamping mode through inserting the slots 31.

The locking mechanism 4 includes two movable plates 41, a first sliding block 412 is fixedly connected to a rear end of each movable plate 41, a first sliding slot 12 matched with the first sliding block 412 is formed in the mounting groove 11, each movable plate 41 slides in the first sliding slot 12 through the first sliding block 412, an insertion rod 42 is arranged on the outer side, far away from each other, of each movable plate 41, namely the upper end of the upper movable plate 41 and the lower end of the lower movable plate 41, the insertion rod 42 is aligned with the slot 31, the insertion rod 42 is inserted into the slot 31 to limit the fixing rod 3, four support rods 43 are arranged between the two movable plates 41, the four support rods 43 are respectively in left-right and up-down symmetry, and the four support rods 43 move simultaneously and can drive the two movable plates 41 to do opposite movement.

The inboard stationary phase of fly leaf 41 even has two fixed blocks 411, and two bracing piece 43 one end above rotate with fixed block 411 and link to each other, be provided with spacing slider 44 between two upper and lower bracing pieces 43 of same side, and the bracing piece 43 is kept away from the one end of fixed block 411 and is rotated with spacing slider 44 and link to each other, be provided with two-way threaded rod 45 between two spacing slider 44, and two spacing slider 44 are located two-way threaded rod 45 opposite screw thread department in both ends, when rotating two-way threaded rod 45, just can inwards or outwards remove simultaneously through the spacing slider 44 that drives both sides, thereby can drive two fly leaves 41 about can moving.

The rear end of the limiting slide block 44 is fixedly connected with a second slide block 441, a second sliding groove 13 matched with the second slide block 441 is formed in the mounting groove 11, and the limiting slide block 44 slides in the second sliding groove 13 through the second slide block 441.

The both ends cover of two-way threaded rod 45 is equipped with telescopic sleeve 46, and telescopic sleeve 46 slides around the surface of two-way threaded rod 45, make telescopic sleeve 46 can carry out concertina movement, telescopic sleeve 46 keeps away from the one end fixed phase of two-way threaded rod 45 and even has fixed handle 47, in the installation, can outwards stimulate telescopic sleeve 46, let fixed handle 47 expose, thus, after putting into mounting groove 11 with circuit breaker body 2 in, just can be through rotating fixed handle 47, fixed handle 47 drives two-way threaded rod 45 and rotates, and after fixing circuit breaker body 2, just can inwards promote fixed handle 47, make it to the internal contraction.

The utility model discloses a theory of operation: in the installation, can place circuit breaker body 2 in mounting groove 11, then let inserted bar 42 slot 31 align, handheld fixed handle 47 rotates two-way threaded rod 45 after that, the spacing slider 44 at two ends of two-way threaded rod 45 inwards moves simultaneously, thereby promote the bracing piece 43 of both sides inwards to deflect about the promotion, bracing piece 43 will promote fly leaf 41 and remove, make inserted bar 42 insert in slot 31, and support dead lever 3 through fly leaf 41 tightly, after fixing, just can inwards promote fixed handle 47, make it inwards shrink.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides a miniature circuit breaker, is including being fixed in fixed plate (1) in the block terminal and circuit breaker body (2) continuous with fixed plate (1), its characterized in that, both ends all are provided with dead lever (3) about the rear side of circuit breaker body (2), and slot (31) have been seted up on the surface of dead lever (3), have seted up mounting groove (11) in fixed plate (1), are provided with locking mechanism (4) in mounting groove (11), and locking mechanism (4) are through slot (31) and dead lever (3) joint.

2. The miniature circuit breaker according to claim 1, wherein the locking mechanism (4) comprises two movable plates (41), an insertion rod (42) is disposed on an outer side of the two movable plates (41) away from each other, the insertion rod (42) is inserted into the slot (31), and a plurality of support rods (43) are disposed between the two movable plates (41), and the support rods (43) are used for driving the two movable plates (41) to move oppositely.

3. The miniature circuit breaker according to claim 2, wherein the movable plate (41) is fixedly connected with two fixed blocks (411) at the inner side thereof, one end of the supporting rod (43) is rotatably connected with the fixed blocks (411), a limiting slider (44) is arranged between the upper and lower supporting rods (43), one end of the supporting rod (43) far away from the fixed blocks (411) is rotatably connected with the limiting slider (44), a bidirectional threaded rod (45) is arranged between the two limiting sliders (44), and the two limiting sliders (44) are located at opposite threads at two ends of the bidirectional threaded rod (45).

4. The miniature circuit breaker according to claim 3, wherein the rear end of the movable plate (41) is fixedly connected with a first sliding block (412), a first sliding slot (12) matched with the first sliding block (412) is formed in the mounting groove (11), and the movable plate (41) slides in the first sliding slot (12) through the first sliding block (412).

5. The miniature circuit breaker according to claim 3, wherein the rear end of the position limiting slider (44) is fixedly connected with a second slider (441), a second sliding slot (13) matched with the second slider (441) is formed in the mounting groove (11), and the position limiting slider (44) slides in the second sliding slot (13) through the second slider (441).

6. The miniature circuit breaker according to claim 3, wherein the two ends of said bidirectional threaded rod (45) are sleeved with telescopic sleeves (46), the telescopic sleeves (46) are slidably connected with the bidirectional threaded rod (45), and one end of the telescopic sleeves (46) far away from the bidirectional threaded rod (45) is fixedly connected with a fixed handle (47).