CN214477258U - Moulded case circuit breaker convenient to installation - Google Patents

Abstract

The utility model discloses a moulded case circuit breaker convenient to installation, including the shell, its installation sets up in the front of moulded case circuit breaker, the top of shell is seted up flutedly, and the inside of recess is seted up the top screw, the both sides fixed mounting of shell has the connecting block, the front swing joint of connecting block has positioning bolt, and positioning bolt's one end run through the middle of the connecting block go on be connected with the wall; and the fixed blocks are arranged on two sides of the outer wall of the shell. According to the molded case circuit breaker convenient to install, the electric wire is placed in the clamping block on the connecting spring, the bottom case is pushed from bottom to top, and the movable plates on the two sides can be extruded under the action of the fixed groove, so that the damage to the wire is avoided; under the effect through the top screw, can fix moulded case circuit breaker's top upper end through the bolt, after the installation is fixed in addition, positioning bolt on the accessible connecting block fixes moulded case circuit breaker installation on the wall.

Description

Moulded case circuit breaker convenient to installation

Technical Field

The utility model relates to a moulded case circuit breaker technical field specifically is a moulded case circuit breaker convenient to installation.

Background

A molded case circuit breaker, which is capable of automatically cutting off a current after the current exceeds a trip setting, uses a plastic insulator as a case of the device for isolating conductors from each other and grounding metal portions. Molded case circuit breakers typically contain a thermo-magnetic trip unit, while large molded case circuit breakers will be equipped with a solid-state trip sensor, the trip unit of which is divided into: thermomagnetic dropout and electronic release, people can use moulded case circuit breaker in every industry at present on the market often, but current moulded case circuit breaker still has certain defect, just for example:

the patent publication "CN 206849786U" discloses a "molded case circuit breaker convenient for installation" including a case, a sliding cover is arranged at one end in the shell, a plurality of horizontally arranged binding posts are arranged in the sliding cover, the lower end of the binding post is correspondingly provided with a plurality of wire fixing devices which are fixedly connected with the inner wall of the sliding cover, a plurality of conductive terminals are arranged on the side surface of one end of the sliding cover at the upper end of the binding post, the conductive terminals are respectively and fixedly connected with the binding posts, but the patent easily causes excessive extrusion to the lead when connecting the lead, further easily causing damage to the lead, and in addition, in the daily maintenance process, the lead needs to be disassembled and assembled, furthermore, frequent disassembly and assembly can lead the lead to be easy to loosen, thus reducing the fixing effect of the device and the practicability of the device;

in order to solve the problems, innovative design is urgently needed on the basis of the original molded case circuit breaker structure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a moulded case circuit breaker convenient to installation to the moulded case circuit breaker who proposes in solving above-mentioned background art is generally not convenient for install and fixed effect not fine problem.

In order to achieve the above object, the utility model provides a following technical scheme: a molded case circuit breaker convenient to install, comprising:

the circuit breaker comprises a shell, a positioning bolt and a positioning bolt, wherein the shell is arranged on the front surface of the molded case circuit breaker, the top of the shell is provided with a groove, a top screw hole is formed in the groove, connecting blocks are fixedly arranged on two sides of the shell, the front surface of each connecting block is movably connected with the positioning bolt, and one end of the positioning bolt penetrates through the middle part of each connecting block and is connected with a wall surface;

the fixing blocks are arranged on two sides of the outer wall of the shell, and threaded grooves are formed in the front faces of the fixing blocks;

the bottom shell, its installation set up in the bottom of shell, the both sides of bottom shell all are provided with the curb plate, and the inner wall swing joint of curb plate has fixing bolt, and fixing bolt passes through moreover the connection of thread groove can with the fixed block is fixed.

Preferably, the housing is further provided with:

and the switch is arranged on the front surface of the shell, and one end of the switch penetrates through the shell and extends into the molded case circuit breaker to be connected.

Preferably, the bottom shell is further provided with:

the movable plates are arranged on the inner wall of the bottom shell, the number of the movable plates is two, and a connecting frame is arranged between the two movable plates.

Preferably, the movable plate is further provided with:

and the connecting spring is arranged on one side of the movable plate, and the connecting spring is arranged by taking the perpendicular bisector of the movable plate as the symmetry axis.

Preferably, the connecting spring is further provided with:

the fixture block is arranged at one end of the connecting spring, the fixture block is concave, and the size of the concave is the same as that of the electric wire.

Preferably, the bottom shell is provided with;

and a fixing groove which is provided right opposite to the bottom case and has a shape gradually narrowed from bottom to top. Compared with the prior art, the beneficial effects of the utility model are that: the molded case circuit breaker convenient to install;

1. the fixture block is pushed, so that an electric wire can be placed in the fixture block for installation and fixation under the action of the connecting spring, the bottom shell is installed at the lower end of the molded case circuit breaker, and the movable plates on two sides can be extruded under the action of the fixing groove in the movement from bottom to top, so that the connecting spring can extrude and fix the fixture block, further the damage to a wire is avoided, in addition, in the daily maintenance process, the wire is simplified to be disassembled and assembled, the phenomenon that the wire is easy to loosen due to frequent disassembly and assembly is avoided, and the practicability of the device is improved;

2. under the effect through the top screw of recess the inside, can fix moulded case circuit breaker's top upper end through the bolt, after the installation is fixed in addition, positioning bolt on the accessible connecting block can fix moulded case circuit breaker installation on the wall, and then has improved the fixed effect to the device, and satisfying people's daily user demand that can be fine, the installation of giving the device is fixed and is brought certain facility.

Drawings

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

FIG. 2 is a schematic view of the structure of the casing and the fixing groove of the present invention;

FIG. 3 is a schematic view of the bottom shell and the movable plate of the present invention;

FIG. 4 is a schematic view of the structure of the connecting spring and the clamping block of the present invention;

fig. 5 is an enlarged schematic view of a portion a in fig. 2 according to the present invention.

In the figure: 1. a housing; 2. a groove; 3. a top screw hole; 4. a switch; 5. connecting blocks; 6. side screw holes; 7. positioning the bolt; 8. a fixed block; 9. a thread groove; 10. fixing the bolt; 11. a bottom shell; 12. A side plate; 13. a movable plate; 14. a connecting frame; 15. a connecting spring; 16. a clamping block; 17. and fixing the grooves.

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: the utility model provides a moulded case circuit breaker convenient to installation, includes shell 1, recess 2, top screw 3, switch 4, connecting block 5, side screw 6, positioning bolt 7, fixed block 8, thread groove 9, fixing bolt 10, bottom shell 11, curb plate 12, fly leaf 13, link 14, connection bullet 15, fixture block 16 and fixed slot 17:

the circuit breaker comprises a shell 1, a connecting block 5, a positioning bolt 7 and a positioning bolt, wherein the shell 1 is arranged on the front side of the molded case circuit breaker, a groove 2 is formed in the top of the shell 1, a top screw hole 3 is formed in the groove 2, the connecting block 5 is fixedly arranged on two sides of the shell 1, the front side of the connecting block 5 is movably connected with the positioning bolt 7, and one end of the positioning bolt 7 penetrates through the middle part of the connecting block 5 and is connected with a wall surface;

the fixing blocks 8 are arranged on two sides of the outer wall of the shell 1, and threaded grooves 9 are formed in the front faces of the fixing blocks 8;

bottom shell 11, its installation sets up in the bottom of shell 1, and the both sides of bottom shell 11 all are provided with curb plate 12, and the inner wall swing joint of curb plate 12 has fixing bolt 10, and fixing bolt 10 can be fixed with fixed block 8 through the connection of thread groove 9 moreover.

The housing 1 is further provided with:

the switch 4 is arranged on the front side of the shell 1, and one end of the switch 4 penetrates through the shell 1 and extends into the molded case circuit breaker for connection, so that the connection between the shell 1 and the switch 4 is enhanced;

the bottom shell 11 is further provided with:

the movable plates 13 are arranged on the inner wall of the bottom shell 11, the number of the movable plates 13 is two, and the connecting frame 14 is arranged between the two movable plates 13, so that the movable plates 13 can be well connected through the connecting frame 14;

the movable plate 13 is further provided with:

the connecting spring 15 is installed on one side of the movable plate 13, and the connecting spring 15 is symmetrically arranged by taking the perpendicular bisector of the movable plate 13 as a symmetry axis, so that the connecting spring 15 can well support and fix the fixture block 16 under the supporting and fixing of the movable plate 13;

the connection spring 15 is further provided with:

the fixture block 16 is arranged at one end of the connecting spring 15, the fixture block 16 is concave, and the size of the concave is equal to that of the electric wire, so that the fixing effect of the connecting spring 15 and the fixture block 16 is enhanced, the connecting spring 15 can be well arranged and fixed with the fixture block 16, and the concave fixture block 16 can well fix the electric wire;

the bottom shell 11 is provided with;

and a fixing groove 17 which is provided right opposite to the bottom case 11, and the shape of the fixing groove 17 is gradually narrowed from bottom to top, so that the electric wire can be fixed better.

The working principle is as follows: when the convenient-to-install molded case circuit breaker is used, as shown in the attached drawing 1-2, the shell 1 can be installed and fixed on a required wall surface through the top screw holes 3 in the grooves 2 on the shell 1, so that the molded case circuit breaker can be initially installed and fixed, in addition, the left side surface and the right side surface of the shell 1 are both connected with the connecting blocks 5, the molded case is installed and fixed again through the side screw holes 6 on the connecting blocks 5 in a short circuit mode, after the installation is completed, the bottom shell 11 can be clamped into the bottom of the molded case circuit breaker, so that the side plates 12 on the bottom shell 11 can be aligned with the fixing blocks 8 on the corresponding shell 1, at the moment, the fixing bolts 10 can be inserted into the side plates 12 and extend into the thread grooves 9 on the fixing blocks 8 for fixing, and the convenient-to install the molded case circuit breaker;

as shown in fig. 1-5, the molded case circuit breaker is provided with a fixing groove 17, when the electric wire is installed and fixed, the electric wire can be connected with the molded case circuit breaker, the electric wire at the lower end is retained, the electric wire can be placed in the fixing groove 17 and extend to the bottom end of the bottom shell 11, the electric wire can be clamped into the clamping block 16, under the action of the connecting spring 15, the connecting spring 15 can well push the clamping block 16 to simply fix the electric wire, at the same time, the bottom shell 11 can be placed at the bottom end of the molded case circuit breaker, at the same time, the movable plate 13 in the bottom shell 11 can be clamped into the fixing groove 17, and the bottom shell 11 is pushed to slide from bottom to top, and under the action of the movable plates 13 at two sides of the connecting frame 14, the movable plates 13 at two sides can be forced to contract, and then the connecting spring 15 is squeezed, so that the connecting spring 15 can push the clamping block 16 to extrude the electric wire, the electric wire is fixed, and the electric wire fixing effect is improved.

Those not described in detail in this specification are within the skill of the art.

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 (6)

1. A molded case circuit breaker convenient to install, comprising:

the circuit breaker comprises a shell, a positioning bolt and a positioning bolt, wherein the shell is arranged on the front surface of the molded case circuit breaker, the top of the shell is provided with a groove, a top screw hole is formed in the groove, connecting blocks are fixedly arranged on two sides of the shell, the front surface of each connecting block is movably connected with the positioning bolt, and one end of the positioning bolt penetrates through the middle part of each connecting block and is connected with a wall surface;

the fixing blocks are arranged on two sides of the outer wall of the shell, and threaded grooves are formed in the front faces of the fixing blocks;

the bottom shell, its installation set up in the bottom of shell, the both sides of bottom shell all are provided with the curb plate, and the inner wall swing joint of curb plate has fixing bolt, and fixing bolt passes through moreover the connection of thread groove can with the fixed block is fixed.

2. A molded case circuit breaker convenient to install in accordance with claim 1, wherein the case is further provided with:

and the switch is arranged on the front surface of the shell, and one end of the switch penetrates through the shell and extends into the molded case circuit breaker to be connected.

3. A molded case circuit breaker convenient to install in accordance with claim 1, wherein the bottom case is further provided with:

the movable plates are arranged on the inner wall of the bottom shell, the number of the movable plates is two, and a connecting frame is arranged between the two movable plates.

4. A molded case circuit breaker convenient to install as recited in claim 3, wherein the movable plate is further provided with:

and the connecting spring is arranged on one side of the movable plate, and the connecting spring is arranged by taking the perpendicular bisector of the movable plate as the symmetry axis.

5. A molded case circuit breaker convenient to install in accordance with claim 4, wherein the connection spring is further provided with:

the fixture block is arranged at one end of the connecting spring, the fixture block is concave, and the size of the concave is the same as that of the electric wire.

6. A molded case circuit breaker convenient to install in accordance with claim 1, wherein the bottom case is provided with;

and a fixing groove which is provided right opposite to the bottom case and has a shape gradually narrowed from bottom to top.

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