CN213242443U - Circuit breaker based on three-phase electric control uses - Google Patents

Abstract

Circuit breaker based on three-phase electric control usefulness relates to circuit control technical field, and the terminal structure of having solved current circuit breaker can not adjust by all, is not convenient for install the problem of the circuit that differs in length. The box comprises a box body, wherein a box cover is rotatably arranged at the edge position of the upper side wall of the box body, and a switch is rotatably arranged at the middle position of the box cover; the lower side positions of the left side wall and the right side wall of the box body are both transversely and longitudinally provided with two rectangular grooves II in a through mode, and the middle section position of the rear side wall of the box body is vertically symmetrically and rotatably provided with six insulating sleeves; the middle positions of the front side walls of the six insulation sleeves are all provided with a hole groove in a penetrating way. This practical junction box can realize flexible function through rack and pinion structure, and during flexible junction box, can rotate the knob, make the junction box change length, easy to assemble the circuit different in size like this, the suitability is wider.

Description

Circuit breaker based on three-phase electric control uses

Technical Field

The utility model relates to a circuit control technical field specifically is based on circuit breaker that three-phase electric control used.

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 for a predetermined time. The circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to the application range, the high-voltage and low-voltage boundary lines are relatively vague, and the circuit breakers above 3kV are generally called high-voltage electric appliances. The circuit breaker can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply circuit, the motor and the like, and automatically cutting off a circuit when faults such as serious overload, short circuit, undervoltage and the like occur, and the function of the circuit breaker is equivalent to the combination of a fuse type switch, an over-under-heat relay and the like. Furthermore, no parts need to be changed after breaking the fault current. At present, it has been widely used. Distribution of electricity is an extremely important link in the generation, transmission and use of electricity. The distribution system comprises a transformer and various high-low voltage electrical equipment, and the low-voltage circuit breaker is an electrical appliance with a large using amount.

For example, patent No. ZL201510838254.5 discloses a button circuit breaker, including circuit breaker shell and base, fixed mounting has the circuit breaker shell on the base, the upper end of circuit breaker shell is equipped with a start button, and one side of circuit breaker shell is equipped with the lock-out button, is equipped with support, moving contact, vertical spring, horizontal spring and sliding contact in the circuit breaker shell, the lower extreme fixed mounting of support is on the base, and the moving contact is installed to the upper end, moving contact and support swing joint, the other end joint of moving contact is on the sliding contact, the lower extreme of sliding contact is equipped with the flange, and the upper end is equipped with crescent draw-in groove. The present case has increased the circuit breaker and can real time switch circuit function outside satisfying this some functions of circuit breaker, simultaneously, is in under normal load at the circuit, if the external conflagration that breaks out of circuit breaker, need not artifically open, and the circuit breaker also can reach the function of breaking circuit.

However, the terminal structure of the existing circuit breaker is mostly unadjustable, which is inconvenient for installing lines with different lengths, and the electric wire needs to be bent to change the circuit direction in the line installation process, which easily causes the abrasion of the electric wire and shortens the service life of the electric wire. In addition, the circuit breaker needs to be disassembled when the circuit is overhauled, and the operation is complex.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a circuit breaker based on three-phase electric control is used to the terminal structure of the current circuit breaker who proposes in solving above-mentioned background art can not adjust by all, is not convenient for install the problem of the circuit different in size.

In order to achieve the above object, the utility model provides a following technical scheme: the box comprises a box body, wherein a box cover is rotatably arranged at the edge position of the upper side wall of the box body, and a switch is rotatably arranged at the middle position of the box cover; six insulating sleeves are symmetrically arranged at the middle section of the rear side wall of the box body from top to bottom; a first hole groove is formed in the middle of the front side wall of the insulating sleeve in a penetrating mode, a first rectangular groove is formed in the insulating sleeve, a rack is installed on the left side wall of the inside of the first rectangular groove in a clamping and sliding mode, the rack is connected with a wiring pipe, and the wiring pipe is located at the top of the insulating sleeve;

a gear is installed in the clamping connection on the rack, a rotating shaft is installed on the gear, the rotating shaft is located in the first hole groove, and a knob is arranged at one end, extending out of the front side wall of the insulating sleeve, of the rotating shaft.

The insulating sleeve is rotatably connected to the box body.

Six hole grooves II are formed in the middle section of the rear side wall of the box body in a penetrating manner; the lower side position of lateral wall all runs through to rotate around the insulating cover and installs a terminal, and the first half section of six terminals rotates to settle in six hole grooves two of seting up on the lateral wall behind the box body.

The lower side positions of the left side wall and the right side wall of the box body are both transversely and longitudinally provided with two rectangular grooves II in a through way,

the button is installed to equal joint in the rectangular channel two of box body, equal erects to prop on the upper and lower terminal surface of button and welds and have a baffle, and all installs a spring on the right side wall of two buttons, the right-hand member of spring is connected with an oval-shaped cardboard, the cardboard is used for connecting the lid.

Compared with the prior art, the beneficial effects of the utility model are that:

the wiring tube in the utility model can realize the telescopic function through the gear rack structure, and when the wiring tube is telescopic, the knob can be rotated to change the length of the wiring tube, so that circuits with different lengths can be conveniently installed, and the applicability is wider;

the insulating sleeve in the utility model can rotate, thus reducing the bending of the line and prolonging the service life of the line;

thirdly, the utility model provides a cardboard of connecting on the button is together fixed with box body and lid joint, when overhauing the circuit, can press two places button, makes the cardboard move forward under the spring action of spring, and until no longer the joint lid, the cardboard is together fixed with box body and lid joint, and the convenience is implemented to the lid and is opened closed operation like this, need not unpack apart the circuit breaker and carry out the circuit maintenance, saves time and convenient operation.

Drawings

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

FIG. 2 is a schematic view of the structure of the box body of the present invention;

FIG. 3 is a schematic view of the rear structure of the present invention;

FIG. 4 is a schematic view of the structure of the insulating sleeve of the present invention;

FIG. 5 is a schematic view of the gear structure of the present invention;

FIG. 6 is an enlarged view of part A of FIG. 2;

fig. 7 is a schematic view of the button structure of the present invention;

FIG. 1, box body; 101. a button; 102. a spring; 2. a box cover; 3. a switch; 4. an insulating sleeve; 5. a wire connecting pipe; 501. a binding post; 6. a rack; 7. a gear; 701. a rotating shaft; 702. a knob.

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.

Referring to fig. 1 to 7, the present invention includes a box body 1, a box cover 2 is rotatably installed at an upper sidewall edge of the box body 1, and a switch 3 is rotatably installed at a middle position of the box cover 2; the lower side positions of the left side wall and the right side wall of the box body 1 are both transversely and longitudinally provided with two rectangular grooves II in a through mode, and the middle section position of the rear side wall of the box body 1 is vertically symmetrically and rotatably provided with six insulating sleeves 4; a first hole groove is formed in the middle position of the front side wall of each of the six insulating sleeves 4 in a penetrating manner, a first rectangular groove is formed in each of the six insulating sleeves 4, and a rack 6 is installed on the left side wall in each of the first rectangular grooves in a clamping and sliding manner; a gear 7 is clamped and mounted on each of the six racks 6, and a wiring tube 5 is arranged at the top of each of the six insulating sleeves 4;

six hole grooves II are formed in the middle section of the rear side wall of the box body 1 in a penetrating manner; the downside position of lateral wall all runs through to rotate around six insulating cover 4 and installs a terminal 501, and the first half section of these six terminal 501 rotates and settles in six hole grooves two of seting up on the lateral wall behind box body 1, and connecting tube 5 can realize flexible function through rack and pinion structure, and insulating cover 4 can rotate, can reduce the circuit like this and buckle, extension circuit life.

Furthermore, a button 101 is clamped and installed in a rectangular groove II at the lower side position inside the box body 1, a baffle is welded on the upper end surface and the lower end surface of the two buttons 101 in a vertical supporting manner, a spring 102 is installed on the right side wall of each of the two buttons 101, the right end of each of the two springs 102 is connected with an oval clamping plate, a clamping groove for placing the clamping plate is arranged on the box cover 2, the clamping plate clamps and fixes the box body 1 and the box cover 2 together,

when overhauing the circuit, can press two buttons 101, make the cardboard move forward under spring 102's elasticity effect, until no longer joint lid 2, the cardboard is fixed together box body 1 and lid 2 joint, and the convenient closed operation of opening is implemented to lid 2 like this, need not unpack apart the circuit breaker and carry out circuit maintenance, save time and convenient operation.

Furthermore, the front end surfaces of the six gears 7 are respectively provided with a rotating shaft 701, and the front end surfaces of the six rotating shafts 701 are respectively provided with a knob 702; six rotating shafts 701 are rotatably arranged in six hole grooves which are formed in the front side walls of the six insulating sleeves 4 in a penetrating mode, and when the wiring tube 5 is stretched and contracted, the knob 702 can be rotated to enable the length of the wiring tube 5 to be changed, so that lines with different lengths can be conveniently installed, and the applicability is wide.

The working principle is as follows: when overhauing the circuit, can press two buttons 101, make the cardboard move forward under spring 102's elasticity effect, until no longer joint lid 2, the cardboard is together fixed with box body 1 and lid 2 joint, it opens closed operation to convenient like this implementation lid 2, need not unpack apart the circuit breaker and carry out the circuit maintenance, save time and convenient operation, during the wiring, can rotate knob 702, make connecting tube 5 change length, easy to assemble the circuit different in length like this, the suitability is wider, in addition, insulating cover 4 can rotate, can reduce the circuit and buckle like this, prolong circuit life.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (4)

1. The circuit breaker for three-phase electric control comprises a box body (1), wherein a box cover (2) is rotatably arranged at the edge position of the upper side wall of the box body (1), and a switch (3) is rotatably arranged at the middle position of the box cover (2); the method is characterized in that: six insulating sleeves (4) are symmetrically arranged at the upper part and the lower part of the middle part of the rear side wall of the box body (1); a first hole groove is formed in the middle of the front side wall of the insulating sleeve (4) in a penetrating mode, a first rectangular groove is formed in the insulating sleeve (4), a rack (6) is installed on the left side wall of the inner portion of the first rectangular groove in a clamping and sliding mode, the rack (6) is connected with a wiring pipe (5), and the wiring pipe (5) is located at the top of the insulating sleeve (4);

one gear (7) is installed to the joint on rack (6), install one pivot (701) on gear (7), pivot (701) are located hole groove one, the one end that lateral wall was equipped with knob (702) before insulating cover (4) is stretched out in pivot (701).

2. The three-phase electric control-based circuit breaker according to claim 1, characterized in that: the insulating sleeve (4) is rotatably connected to the box body (1).

3. The three-phase electric control-based circuit breaker according to claim 2, characterized in that: six hole grooves II are formed in the middle section of the rear side wall of the box body (1) in a penetrating manner; the lower side position of lateral wall all runs through to rotate around insulating cover (4) and installs a terminal (501), and the first half section of six terminal (501) is rotated and is settled in six hole grooves two of seting up on box body (1) rear side wall.

4. The three-phase electric control-based circuit breaker according to claim 1, characterized in that: the lower side positions of the left side wall and the right side wall of the box body (1) are both transversely and longitudinally provided with two rectangular grooves II in a through way,

a button (101) is installed to equal joint in the rectangular channel two of box body (1), it has a baffle to all erect the welding on the upper and lower terminal surface of button (101), and all installs a spring (102) on the right side wall of two buttons (101), the right-hand member of spring (102) is connected with an oval-shaped cardboard, the cardboard is used for connecting lid (2).

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