CN220272407U - Circuit breaker convenient to change ground contact - Google Patents

Abstract

The utility model discloses a circuit breaker convenient for replacing a grounding contact, which comprises a circuit breaker main body, wherein a mounting support is arranged on the inner side of the circuit breaker main body, a cross rod is fixedly connected to one side of the mounting support, a square tube is arranged at the top of the cross rod, a grounding busbar is arranged at the top of the square tube, a grounding contact is arranged at the top of the grounding busbar, a plug rod is arranged on the square tube, a clamping rod is symmetrically and fixedly connected to the outer side of the plug rod, a threaded part is arranged at the bottom of the plug rod, the plug rod is in threaded connection with the square tube through the threaded part, a mounting cylinder is fixedly connected to the bottom of the grounding contact, and a jack matched with the plug rod is arranged in the mounting cylinder.

Description

Circuit breaker convenient to change ground contact

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to a circuit breaker convenient for replacing a grounding contact.

Background

A circuit breaker is an electrical switching apparatus for protecting electrical systems and circuits, the main function of which is to detect fault conditions in the circuit and to rapidly break the circuit if necessary to prevent damage or danger caused by current overloads, short circuits and other faults, and a ground contact is an important component in circuit breakers for grounding the circuit breaker, which can function as a protection device and operator, and which is currently fixed using screws.

For example, the chinese patent application No. 201720547706.9 discloses an inflatable cabinet circuit breaker switch, which comprises a bracket and a grounding contact, wherein a grounding support rod is fixedly connected to the bracket, a grounding cross beam is fixedly connected to the grounding support rod, two side edges of the grounding cross beam are bent downwards to form support edges connected to the grounding support rod, and the top of the grounding cross beam is horizontally arranged.

The grounding contact in the utility model is fixed on the grounding beam by using a screw, in practical application, the surface of the grounding contact is easy to wear after long-time use, and the grounding contact is exposed and easy to oxidize and corrode. The conductivity and the contact quality are affected, so that the grounding contact needs to be replaced, and when the grounding contact is fixed by using a screw, the screw needs to be turned for many times, the replacement step is complex, and the working efficiency is low.

Disclosure of Invention

The utility model aims to provide a circuit breaker which is convenient for replacing a grounding contact so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a circuit breaker convenient to change ground contact, includes the circuit breaker main part, the mount pad is installed to the inboard of circuit breaker main part, one side fixedly connected with horizontal pole of mount pad, square pipe is installed at the top of horizontal pole, the top of square pipe is equipped with the ground connection busbar, ground contact is installed at the top of ground connection busbar, be equipped with the inserted bar on the square pipe, the outside symmetry fixedly connected with clamping bar of inserted bar, the bottom of inserted bar is equipped with screw thread portion, the inserted bar passes through screw thread portion and square pipe threaded connection, the bottom fixedly connected with installation section of thick bamboo of ground contact, the inside of installation section of thick bamboo be equipped with inserted bar matched with jack, the outside of installation section of thick bamboo be equipped with vertical groove and the transverse groove of intercommunication each other, vertical groove and transverse groove all with jack intercommunication, all be equipped with on ground connection busbar and the square pipe with installation section of thick bamboo matched with mounting groove.

As a preferable mode of the present utility model, a torsion piece is provided at the bottom of the screw portion.

As a preferable scheme of the utility model, the width of the vertical groove is equal to the diameter of the clamping rod, and the width of the transverse groove is larger than the diameter of the clamping rod.

As a preferable scheme of the utility model, the bottom of the grounding contact is symmetrically and fixedly connected with a positioning rod, and positioning grooves matched with the positioning rod are arranged on the grounding busbar and the square tube.

As a preferable scheme of the utility model, the bottom of the square tube is provided with a fixed hole, and the square tube and the grounding busbar are provided with avoiding holes.

Compared with the prior art, the utility model has the beneficial effects that: according to the utility model, the installation and fixation of the grounding contact are realized through the installation barrel, the clamping rod, the transverse groove, the inserted link, the vertical groove, the threaded part and the torsion piece, the grounding contact is not required to be fixed by using a screw, the replacement step of the grounding contact is simplified, the replacement of workers is convenient, and the working efficiency is improved.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a partial front cross-sectional view of the present utility model;

FIG. 3 is an enlarged view of the utility model at A in FIG. 2;

FIG. 4 is a schematic perspective view of the mounting barrel and plunger of the present utility model;

FIG. 5 is a schematic perspective view of a grounding strap according to the present utility model;

fig. 6 is a schematic perspective view of a square tube according to the present utility model.

In the figure: 1. a breaker main body; 2. a mounting support; 3. a cross bar; 4. square tubes; 5. a ground bus; 6. a ground contact; 7. avoidance holes; 8. twisting the sheet; 9. a fixing hole; 10. a positioning rod; 11. a transverse groove; 12. a threaded portion; 13. a rod; 14. a clamping rod; 15. a vertical groove; 16. a mounting cylinder; 17. a mounting groove; 18. and a positioning groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 6, the present utility model provides a technical solution: the utility model provides a circuit breaker convenient to change earthing contact, including circuit breaker main part 1, mount pad 2 is installed to circuit breaker main part 1's inboard, one side fixedly connected with horizontal pole 3 of mount pad 2, square pipe 4 is installed at the top of horizontal pole 3, the top of square pipe 4 is equipped with ground connection busbar 5, ground contact 6 is installed at the top of ground connection busbar 5, be equipped with inserted bar 13 on square pipe 4, the outside symmetry fixedly connected with clamping bar 14 of inserted bar 13, clamping bar 14 plays the fixed action with mounting cylinder 16 cooperation earthing contact 6, the bottom of inserted bar 13 is equipped with screw portion 12, inserted bar 13 passes through screw portion 12 and square pipe 4 threaded connection, the bottom fixedly connected with mounting cylinder 16 of earthing contact 6, the inside of mounting cylinder 16 is equipped with the jack with inserted bar 13 matched with, the outside of mounting cylinder 16 is equipped with vertical slot 15 and transverse slot 11 that communicates each other, vertical slot 15 and transverse slot 11 all communicate with the jack, all be equipped with mounting cylinder 16 on ground connection busbar 5 and the square pipe 4, when installing earthing contact 6, take earthing contact 6 and insert mounting slot 16 into mounting slot 17, the fixed action, can make the ground contact 6 take the earthing contact 6 take the opposite direction change the contact 8, make the contact 8 rotate the jack 8, can be changed the jack-up contact 6, the step can be accomplished with the fixed connection slot is realized with the change contact 6, the jack is changed to the jack-twist contact 6, the step is accomplished through the rotation, the jack is convenient for the step is accomplished.

The bottom of the threaded portion 12 is provided with a torsion piece 8, and the torsion piece 8 can facilitate a worker to rotate the insert rod 13.

Wherein, the width of perpendicular groove 15 equals the diameter of card pole 14, and the width of horizontal groove 11 is greater than the diameter of card pole 14, because inserted bar 13 passes through screw thread portion 12 and side pipe 4 threaded connection, when rotating inserted bar 13, the upward movement of vertical direction can take place for inserted bar 13, and inserted bar 13 can drive card pole 14 motion, consequently make the width of horizontal groove 11 be greater than the diameter of card pole 14, make card pole 14 have the space to carry out the upward movement of vertical direction, avoid card pole 14 to be blocked, lead to inserted bar 13 unable rotation.

The bottom of the grounding contact 6 is symmetrically and fixedly connected with a positioning rod 10, positioning grooves 18 matched with the positioning rod 10 are formed in the grounding busbar 5 and the square tube 4, the positioning rod 10 and the positioning grooves 18 are matched to play a role in positioning the grounding contact 6, the grounding contact 6 is prevented from rotating, and the grounding contact 6 is ensured to be fixed firmly.

Wherein, the bottom of side pipe 4 is equipped with fixed orifices 9, and fixed orifices 9 can make things convenient for the staff to use the screw to fix side pipe 4 on horizontal pole 3, all are equipped with on side pipe 4 and the ground connection busbar 5 and dodge hole 7, dodge hole 7 and be used for dodging the screw, make the screw insert in fixed orifices 9 through ground connection busbar 5 and side pipe 4, the screw passes and dodges hole 7 and fixed orifices 9 in proper order and twist back on horizontal pole 3, can play the fixed action to ground connection busbar 5, fixes ground connection busbar 5 on side pipe 4.

Specifically, when the grounding contact 6 is replaced, the torsion plate 8 is rotated clockwise, the torsion plate 8 enables the inserting rod 13 to rotate clockwise, the inserting rod 13 drives the clamping rod 14 to rotate clockwise, the clamping rod 14 is aligned with the vertical groove 15, the grounding contact 6 can be detached, then a new grounding contact 6 is taken, the positioning rod 10 is aligned with the positioning groove 18, the mounting cylinder 16 is inserted into the mounting groove 17, the mounting cylinder 16 is sleeved outside the inserting rod 13, the clamping rod 14 firstly passes through the vertical groove 15 and then enters the transverse groove 11, the torsion plate 8 is rotated anticlockwise, the inserting rod 13 is connected with the square tube 4 through the threaded part 12, the inserting rod 13 moves downwards when anticlockwise, the clamping rod 14 moves anticlockwise along with the inserting rod 13, the clamping rod 14 is in contact with the bottom of the transverse groove 11 when the clamping rod 14 does not reach the rightmost end of the transverse groove 11, the clamping rod 14 applies downward pulling force to the grounding contact 6 through the mounting cylinder 16, the grounding contact 6 and the grounding contact 5 is enabled to be connected with the bottom of the transverse groove 11, the inserting rod 6 is enabled to be fixed, the inserting rod 13 cannot be connected with the connecting rod 6 through the locking rod 6, and the rotation of the inserting rod 13 can not be further enabled to be accomplished, and the grounding contact can not be replaced, and the connection can be achieved.

In the description of the present utility model, it should be understood that the terms "coaxial," "bottom," "one end," "top," "middle," "another end," "upper," "one side," "top," "inner," "front," "center," "two ends," etc. indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," "fourth" may explicitly or implicitly include at least one such feature.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "configured," "connected," "secured," "screwed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intermediaries, or in communication with each other or in interaction with each other, unless explicitly defined otherwise, the meaning of the terms described above in this application will be understood by those of ordinary skill in the art in view of the specific circumstances.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a circuit breaker convenient to change ground contact, includes circuit breaker main part (1), mount pad (2) are installed to the inboard of circuit breaker main part (1), one side fixedly connected with horizontal pole (3) of mount pad (2), square pipe (4) are installed at the top of horizontal pole (3), the top of square pipe (4) is equipped with ground connection busbar (5), ground contact (6) are installed at the top of ground connection busbar (5), its characterized in that: be equipped with inserted bar (13) on square pipe (4), the outside symmetry fixedly connected with card pole (14) of inserted bar (13), the bottom of inserted bar (13) is equipped with screw thread portion (12), inserted bar (13) pass through screw thread portion (12) and square pipe (4) threaded connection, the bottom fixedly connected with installation section of thick bamboo (16) of ground contact (6), the inside of installation section of thick bamboo (16) be equipped with inserted bar (13) matched with jack, the outside of installation section of thick bamboo (16) is equipped with vertical groove (15) and horizontal groove (11) of mutual intercommunication, vertical groove (15) and horizontal groove (11) all with jack intercommunication, all be equipped with on ground connection busbar (5) and square pipe (4) with installation section of thick bamboo (16) matched with mounting groove (17).

2. A circuit breaker for facilitating the replacement of ground contacts as recited in claim 1, wherein: the bottom of the thread part (12) is provided with a torsion piece (8).

3. A circuit breaker for facilitating the replacement of ground contacts as recited in claim 1, wherein: the width of the vertical groove (15) is equal to the diameter of the clamping rod (14), and the width of the transverse groove (11) is larger than the diameter of the clamping rod (14).

4. A circuit breaker for facilitating the replacement of ground contacts as recited in claim 1, wherein: the bottom of the grounding contact (6) is symmetrically and fixedly connected with a positioning rod (10), and positioning grooves (18) matched with the positioning rod (10) are formed in the grounding busbar (5) and the square tube (4).

5. A circuit breaker for facilitating the replacement of ground contacts as recited in claim 1, wherein: the bottom of side pipe (4) is equipped with fixed orifices (9), all be equipped with on side pipe (4) and ground connection busbar (5) and dodge hole (7).