CN216288242U

CN216288242U - Miniature circuit breaker convenient to change

Info

Publication number: CN216288242U
Application number: CN202123221837.3U
Authority: CN
Inventors: 吴亮亮
Original assignee: Shanghai Meilan Electric Appliance Group Electric Technology Co ltd
Current assignee: Shanghai Meilan Electric Appliance Group Electric Technology Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-04-12
Anticipated expiration: 2031-12-21

Abstract

The utility model discloses a miniature circuit breaker convenient to replace, and relates to the technical field of miniature circuit breakers. According to the utility model, under the elastic action of the telescopic spring, the limiting plate is extruded to move towards the other side, the mounting plate is fixedly mounted inside the limiting plate and the fixing plate under the action of fixing the position of the fixing plate, the mounting plate is convenient to drive the wiring frame to be fixed inside the shell, and the wiring frame can be detached through the mounting plate by extruding the limiting plate.

Description

Miniature circuit breaker convenient to change

Technical Field

The utility model relates to the technical field of miniature circuit breakers, in particular to a miniature circuit breaker convenient to replace.

Background

Miniature circuit breaker, english name: the miniature circuit breaker is suitable for overload and short-circuit protection of a line with rated voltage of 230/400V and rated current of 50/60Hz and 63A of alternating current, is mainly used in various places such as industry, commerce, high-rise and civil houses, and can also be used for infrequent operation and switching of the line under normal conditions.

The existing miniature circuit breaker is inconvenient to disassemble and assemble a single group of circuit breakers after installation, easily causes interference to other or adjacent circuit breakers, can only replace the whole circuit breaker after a wiring frame inside the circuit breaker breaks down, is inconvenient to maintain, has high use cost, and causes great resource waste.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects that a single group of circuit breakers are inconvenient to assemble and disassemble after being installed, other or adjacent circuit breakers are easy to interfere, the whole circuit breaker can only be replaced after a wiring frame in the circuit breaker breaks down, the maintenance is inconvenient, the use cost is high, and the waste of resources is large in the conventional small circuit breaker.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a small circuit breaker convenient to replace comprises a shell, wherein a handle is connected to the positive end face of the shell, a rotating shaft is installed inside the shell, a gear is connected to the outer wall of the rotating shaft, an L-shaped toothed plate is connected to the outer wall of the gear in a meshed mode, a first sliding column is fixedly installed on the surface of the L-shaped toothed plate, a sliding way is connected to the outer wall of the first sliding column in a sliding mode, a connecting plate is connected to the outer wall of the sliding way, and the connecting plate and the shell are fixedly installed;

the inner wall sliding connection of slide has the second traveller, and the rear end face of second traveller is connected with down the cardboard, one side fixed mounting of cardboard has the rack down, and the bottom of rack is connected with T type pole, the outer wall cover of T type pole is equipped with reset spring, and reset spring's bottom is connected with the interior bottom wall of casing.

As a further description of the above technical solution:

the T-shaped rod forms a transmission structure with the L-shaped toothed plate through the rack, the gear, and the L-shaped toothed plate forms a sliding structure with the connecting plate through the first sliding column and the sliding way.

As a further description of the above technical solution:

the rack and the lower clamping plate are vertically distributed, and the lower clamping plate forms a sliding structure through the second sliding column, the slide way and the connecting plate.

As a further description of the above technical solution:

the T-shaped rod and the shell form an elastic structure through the return spring, and the central axis of the T-shaped rod coincides with the central axis of the rack.

As a further description of the above technical solution:

the interior roof fixed mounting of casing has the fixed plate, and the inside wall fixedly connected with expanding spring of casing, the limiting plate is installed to expanding spring's opposite side, and the surface of limiting plate is provided with the mounting panel, one side fixed mounting of mounting panel has the wire frame.

As a further description of the above technical solution:

the wiring frame passes through to constitute fixed knot between mounting panel, limiting plate, fixed plate and the casing and constructs fixed knot, and the limiting plate passes through to constitute elastic construction between expanding spring and the casing.

In conclusion, due to the adoption of the technical scheme, the utility model has the beneficial effects that:

1. according to the circuit breaker, the L-shaped toothed plate and the lower clamping plate are arranged on one side of the shell, and under the action of the gear and the reset spring, the L-shaped toothed plate and the lower clamping plate move oppositely in the shell, so that the shell can be rapidly replaced and disassembled and assembled through the L-shaped toothed plate and the lower clamping plate, the maintenance efficiency of the circuit breaker is improved, the structure is simple, and the stability is high.

2. According to the utility model, under the elastic action of the telescopic spring, the limiting plate is extruded to move towards the other side, the mounting plate is fixedly mounted inside the limiting plate and the fixing plate under the action of fixing the position of the fixing plate, the mounting plate is convenient to drive the wiring frame to be fixed inside the shell, and the wiring frame can be detached through the mounting plate by extruding the limiting plate.

Drawings

Fig. 1 is a schematic view of a combined structure of a miniature circuit breaker convenient to replace according to the present invention;

fig. 2 is a schematic side view of a miniature circuit breaker of the present invention, which is easy to replace;

FIG. 3 is a schematic view of the connection structure of the housing and the mounting plate according to the present invention;

fig. 4 is a schematic perspective view of the mounting plate and the wire frame of the present invention.

Illustration of the drawings:

1. a housing; 2. a handle; 3. a rotating shaft; 4. a gear; 5. an L-shaped toothed plate; 6. a first traveler; 7. a slideway; 8. a connecting plate; 9. a second strut; 10. a lower clamping plate; 11. a rack; 12. a T-shaped rod; 13. a return spring; 14. a fixing plate; 15. a tension spring; 16. a limiting plate; 17. mounting a plate; 18. and a wiring frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, a miniature circuit breaker convenient to replace comprises a shell 1, a handle 2, a rotating shaft 3, a gear 4, an L-shaped toothed plate 5, a first sliding column 6, a sliding way 7, a connecting plate 8, a second sliding column 9, a lower clamping plate 10, a rack 11, a T-shaped rod 12, a reset spring 13, a fixing plate 14, a telescopic spring 15, a limiting plate 16, a mounting plate 17 and a wiring frame 18, wherein the handle 2 is connected to the positive end face of the shell 1, the rotating shaft 3 is installed inside the shell 1, the gear 4 is connected to the outer wall of the rotating shaft 3, the L-shaped toothed plate 5 is connected to the outer wall of the gear 4 in a meshing manner, the first sliding column 6 is fixedly installed on the surface of the L-shaped toothed plate 5, the sliding way 7 is connected to the outer wall of the first sliding column 6 in a sliding manner, the connecting plate 8 is connected to the outer wall of the sliding way 7, and the connecting plate 8 and the shell 1 are fixedly installed;

inner wall sliding connection of slide 7 has second traveller 9, and the rear end face of second traveller 9 is connected with down cardboard 10, one side fixed mounting of cardboard 10 has rack 11 down, and the bottom of rack 11 is connected with T type pole 12, the outer wall cover of T type pole 12 is equipped with reset spring 13, and reset spring 13's bottom is connected with the interior diapire of casing 1, under slide 7's effect, it is accurate to make L type toothed plate 5 and the removal of cardboard 10 down, the activity stability of L type toothed plate 5 with cardboard 10 down has been guaranteed, be favorable to prolonging the life of circuit breaker.

Furthermore, T type pole 12 passes through and constitutes transmission structure between rack 11, gear 4 and the L type pinion rack 5, and constitutes sliding structure between L type pinion rack 5 through first traveller 6, slide 7 and the connecting plate 8, through the setting of T type pole 12, and the user of being convenient for operates rack 11 through T type pole 12, reinforcing practicality.

Further, be vertical distribution between rack 11 and the lower cardboard 10, and constitute sliding construction down between cardboard 10 through second traveller 9, slide 7 and the connecting plate 8, be connected through the meshing of gear 4 and rack 11, L type pinion rack 5, make L type pinion rack 5 open with lower cardboard 10, the casing 1 of being convenient for is installed not unidimensional mounting bracket.

Further, T type pole 12 passes through to constitute elastic construction between reset spring 13 and the casing 1, and the axis of T type pole 12 coincides mutually with the axis of rack 11, under reset spring 13's elastic action, makes rack 11 automatic re-setting when not atress, realizes the clamp of L type pinion rack 5 and lower cardboard 10 tightly, is convenient for guarantee the installation quality of casing 1.

Further, the interior roof fixed mounting of casing 1 has fixed plate 14, and the inside wall fixedly connected with expanding spring 15 of casing 1, limiting plate 16 is installed to expanding spring 15's opposite side, and limiting plate 16's surface is provided with mounting panel 17, and one side fixed mounting of mounting panel 17 has wire frame 18, under limiting plate 16's effect, it is spacing to make limiting plate 16 press from both sides tight mounting panel 17 through expanding spring 15's elastic action, has guaranteed the stability of mounting panel 17 between limiting plate 16 and fixed plate 14.

Further, the wiring frame 18 forms a fixed structure between the mounting plate 17, the limiting plate 16, the fixing plate 14 and the shell 1, the limiting plate 16 forms an elastic structure between the telescopic spring 15 and the shell 1, the wiring frame 18 is rapidly replaced, the maintenance cost of the circuit breaker can be reduced, the flexibility of the circuit breaker is improved, the module mounting of the circuit breaker is achieved, and the internal maintenance of the circuit breaker is facilitated.

The working principle is as follows: when the quick-mounting type rack is used, the T-shaped rod 12 is pulled downwards, the reset spring 13 is compressed, under the fixing action of the T-shaped rod 12 and the rack 11, the rack 11 drives the lower clamping plate 10 to move downwards, the L-shaped toothed plate 5 and the lower clamping plate 10 are opened through the meshing connection of the gear 4 and the rack 11 and the L-shaped toothed plate 5, a user can conveniently mount the shell 1, after the shell 1 is mounted, the T-shaped rod 12 is not stressed, the reset spring 13 is reset, the rack 11 moves upwards, under the meshing connection action of the gear 4 and the rack 11 and the L-shaped toothed plate 5, the L-shaped toothed plate 5 and the lower clamping plate 10 clamp and fix the mounting bracket, the shell 1 is convenient to rapidly mount and dismount, when the fault occurs to the frame 18, the limiting plate 16 is extruded on the positive end face of the shell 1, the expansion spring 15 is extruded, and the mounting plate 17 is not limited between the limiting plate 16 and the fixing plate 14, the user can conveniently detach the wiring frame 18 through the mounting plate 17, the wiring frame 18 is quickly replaced, the maintenance cost of the circuit breaker is reduced, and the working principle of the device is completed.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A miniature circuit breaker convenient to change, includes casing (1), its characterized in that: the handle (2) is connected to the positive end face of the shell (1), the rotating shaft (3) is installed inside the shell (1), the gear (4) is connected to the outer wall of the rotating shaft (3), the L-shaped toothed plate (5) is connected to the outer wall of the gear (4) in a meshed mode, the first sliding column (6) is fixedly installed on the surface of the L-shaped toothed plate (5), the sliding channel (7) is connected to the outer wall of the first sliding column (6) in a sliding mode, the connecting plate (8) is connected to the outer wall of the sliding channel (7), and the connecting plate (8) and the shell (1) are fixedly installed;

the inner wall sliding connection of slide (7) has second traveller (9), and the rear end face of second traveller (9) is connected with down cardboard (10), one side fixed mounting of cardboard (10) has rack (11) down, and the bottom of rack (11) is connected with T type pole (12), the outer wall cover of T type pole (12) is equipped with reset spring (13), and the bottom of reset spring (13) is connected with the inner bottom wall of casing (1).

2. A small-sized circuit breaker facilitating replacement according to claim 1, wherein: the T-shaped rod (12) forms a transmission structure with the L-shaped toothed plate (5) through the rack (11), the gear (4), and the L-shaped toothed plate (5) forms a sliding structure with the connecting plate (8) through the first sliding column (6), the sliding rail (7).

3. A small-sized circuit breaker facilitating replacement according to claim 1, wherein: the rack (11) and the lower clamping plate (10) are vertically distributed, and the lower clamping plate (10) forms a sliding structure through the second sliding column (9), the sliding rail (7) and the connecting plate (8).

4. A small-sized circuit breaker facilitating replacement according to claim 1, wherein: the T-shaped rod (12) forms an elastic structure with the shell (1) through the return spring (13), and the central axis of the T-shaped rod (12) coincides with the central axis of the rack (11).

5. A small-sized circuit breaker facilitating replacement according to claim 1, wherein: the interior roof fixed mounting of casing (1) has fixed plate (14), and the inside wall fixedly connected with expanding spring (15) of casing (1), limiting plate (16) are installed to the opposite side of expanding spring (15), and the surface of limiting plate (16) is provided with mounting panel (17), one side fixed mounting of mounting panel (17) has wiring frame (18).

6. A small-sized circuit breaker facilitating replacement according to claim 5, wherein: the wiring frame (18) is connected with the shell (1) through the mounting plate (17), the limiting plate (16), the fixing plate (14) and the shell (1) to form a fixing structure, and the limiting plate (16) is connected with the shell (1) through the telescopic spring (15) to form an elastic structure.