CN214542080U

CN214542080U - Circuit breaker with safety protection function

Info

Publication number: CN214542080U
Application number: CN202120601905.XU
Authority: CN
Inventors: 叶委行; 寇元良; 曹海霞
Original assignee: Haiyuan Tianjin Intelligent Technology Co ltd
Current assignee: Haiyuan Tianjin Intelligent Technology Co ltd
Priority date: 2021-03-24
Filing date: 2021-03-24
Publication date: 2021-10-29
Anticipated expiration: 2031-03-24

Abstract

The utility model relates to an electrical equipment field especially relates to a circuit breaker with safety protection function, include: casing, handle and safeguard mechanism, safeguard mechanism includes the carousel of being connected with first cavity lateral wall rotation and is two baffles that the carousel both sides were located to the symmetry, and when the handle was in the combined floodgate state, first connecting rod promoted the carousel and rotates, makes the second connecting rod drive the baffle and shelter from the screw hole, and the screw can't be installed through the mounting hole, and operating personnel also can't unscrew the screw under the combined floodgate state, has avoided operating personnel touching electrified component to take place the risk of electrocuteeing.

Description

Circuit breaker with safety protection function

Technical Field

The utility model relates to an electrical equipment field especially relates to a circuit breaker with safety protection function.

Background

The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time. When the circuit breaker is used, the power line is required to be connected with the conducting strip in the circuit breaker and fixed by screws, and when the circuit breaker is installed, an operator needs to confirm whether the circuit breaker is in an opening state or not, and if the circuit breaker is not found to be in a closing state, the risk of electric shock exists.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that overcome exist among the prior art not enough, provide a breaker with safety protection function that can't install or maintain under the combined floodgate state.

The utility model discloses a realize through following technical scheme:

a circuit breaker with safety protection function, comprising: a shell, a handle and a protection mechanism,

the shell is divided into a first cavity and a second cavity by a partition board in the middle, the handle and the protection mechanism are arranged in the first cavity, conducting strips are arranged on two sides of the second cavity, wiring holes corresponding to the conducting strips are arranged on the side wall of the second cavity, threaded holes are arranged on the partition board and are in one-to-one correspondence with the conducting strips, mounting holes for mounting screws are arranged at the upper end of the first cavity and are opposite to the threaded holes,

the protection mechanism comprises a rotary table and two baffles, the rotary table is connected with the side wall of the first cavity in a rotating mode, the two baffles are symmetrically arranged on two sides of the rotary table, a first connecting rod is arranged between the rotary table and the handle, two ends of the first connecting rod are respectively connected with the rotary table and the eccentric position of the handle in a rotating mode, a second connecting rod is arranged between the baffles and the rotary table, two ends of the second connecting rod are respectively connected with the rotary table and the baffles in a rotating mode, a chute for inserting the baffles is formed in the first cavity, the mounting holes are communicated with the chutes on the same side, the distance between the baffles and the partition plates is larger than the height of the screw nuts, when the handle is in a closing state, the threaded holes are shielded by the baffles, and when the handle is in a breaking state, the baffles are moved away from the upper portions of the threaded holes.

Preferably, the inner wall of the sliding groove is provided with a guide rail, and the side wall of the baffle is provided with a sliding block corresponding to the guide rail.

Preferably, the handle comprises a wrench part and a rotating part, the rotating part is rotatably connected with the first cavity, and the first connecting rod is rotatably connected with the eccentric part of the rotating part.

Preferably, the mounting surface of the shell is symmetrically provided with connecting columns, and the free ends of the connecting columns are provided with clamping jaws.

Preferably, the connecting column is provided with a pair of step platforms along the length direction.

The utility model has the advantages that:

when the handle is in a closing state, the first connecting rod pushes the rotary table to rotate, the second connecting rod drives the baffle to shield the threaded hole, the screw cannot be installed through the installation hole, the screw cannot be unscrewed by an operator in the closing state, and the risk that the operator touches the electrified element to cause electric shock is avoided.

Drawings

Fig. 1 is a schematic structural diagram of the circuit breaker of the present invention in a closing state;

fig. 2 is a schematic structural diagram of the circuit breaker in the open state.

In the figure: 1. a housing; 2. a handle; 3. a partition plate; 4. a first cavity; 5. a second cavity; 6. a conductive sheet; 7. wiring holes; 8. a screw; 9. mounting holes; 10. a turntable; 11. a baffle plate; 12. a first link; 13. a second link; 14. a chute; 15. a guide rail; 16. connecting columns; 17. a claw; 18. a step platform.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.

As shown in the figure, the utility model discloses a: the protective mechanism is used for shielding a mounting hole 9 for mounting a screw 8 on the shell 1 when the handle 2 is in a closing state, an operator cannot operate the screw 8, neither can the circuit breaker which is not mounted be connected with an electric wire nor can the mounted circuit breaker be dismounted, and the protective mechanism plays a role in warning and protection,

the shell 1 is divided into a first cavity 4 and a second cavity 5 by a partition plate 3 in the middle, the handle 2 and the protection mechanism are arranged in the first cavity 4, conducting strips 6 are arranged on two sides of the second cavity 5, a wiring hole 7 corresponding to the conducting strip 6 is arranged on the side wall of the second cavity 5, a power line passes through the wiring hole 7 and is electrically connected with the conducting strip 6, threaded holes are arranged on the partition plate 3, the threaded holes and the conducting strips 6 are arranged in one-to-one correspondence, a mounting hole 9 used for mounting a screw 8 is arranged at the upper end of the first cavity 4 and is just opposite to the threaded hole, the screw 8 is required to be placed into the mounting hole 9 during mounting, the screw 8 is in threaded connection with the threaded hole, and the power line can be fixed or loosened by screwing the screw 8,

the protection mechanism comprises a rotary table 10 rotationally connected with the side wall of the first cavity 4 and two baffles 11 symmetrically arranged at two sides of the rotary table 10, the handle 2 comprises a spanner portion and a rotating portion, the rotating portion is rotationally connected with the first cavity 4, the first connecting rod 12 is rotationally connected with an eccentric position of the rotating portion, the rotating portion is circular, a rotating shaft is coaxially arranged at the center of the circle, the rotating portion can rotate around the rotating shaft by pulling the spanner portion, a first connecting rod 12 is arranged between the rotary table 10 and the handle 2, two ends of the first connecting rod 12 are rotationally connected with the rotary table 10 and the eccentric position of the handle 2 respectively, the rotary table 10 can be pulled to rotate through the first connecting rod 12 when the rotating portion rotates, a second connecting rod 13 is arranged between the baffles 11 and the rotary table 10, two ends of the second connecting rod 13 are rotationally connected with the rotary table 10 and the baffles 11 respectively, and the joints of the two second connecting rods 13 and the rotary table 10 are arranged in central symmetry at the center of the rotary table 10, be equipped with in the first cavity 4 and supply baffle 11 male spout 14, mounting hole 9 communicates with the spout 14 of homonymy, and the distance between baffle 11 and the baffle 3 is greater than the height of screw 8 nut, as shown in fig. 1, when handle 2 is in the combined floodgate state, baffle 11 shelters from the screw hole, and screw 8 can't be from outside and screw hole threaded connection this moment, and screw 8 in the screw hole also can't be operated from the outside, as shown in fig. 2, when handle 2 is in the separating brake state, baffle 11 takes away from the screw hole top, and operating personnel can screw up screw 8 through the screwdriver this moment, or unscrew screw 8.

Preferably, the inner wall of the sliding groove 14 is provided with a guide rail 15, the side wall of the baffle 11 is provided with a sliding block corresponding to the guide rail 15, the guide rail 15 is matched with the sliding block, and the sliding block slides along the guide rail 15 to guide the movement of the baffle 11, so that the baffle 11 is prevented from being clamped in the movement process.

Preferably, the mounting surface of the housing 1 is symmetrically provided with connecting columns 16, the free ends of the connecting columns 16 are provided with claws 17, a user can directly plug the circuit breaker in the embodiment on the mounting plate in the distribution box, the circuit breaker is clamped and fixed through the claws 17, and the connecting columns 16 are provided with opposite step platforms 18 along the length direction. The corresponding step platform 18 position is adjusted according to the thickness of the mounting plate, and the fastening effect is achieved.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A circuit breaker with safety protection function, comprising: a shell, a handle and a protection mechanism,

2. The circuit breaker with safety protection function according to claim 1, wherein the inner wall of the chute is provided with a guide rail, and the side wall of the baffle is provided with a slide block corresponding to the guide rail.

3. The circuit breaker with safety protection function according to claim 1, wherein the handle comprises a wrench portion and a rotating portion, the rotating portion is rotatably connected with the first cavity, and the first connecting rod is rotatably connected with an eccentric portion of the rotating portion.

4. The circuit breaker with safety protection function according to claim 1, wherein the mounting surface of the housing is symmetrically provided with connecting posts, and the free ends of the connecting posts are provided with claws.

5. The circuit breaker with safety protection function as claimed in claim 4, wherein the connecting column is provided with a pair of steps along a length direction.