CN211858550U

CN211858550U - Multi-shielded electronic molded case circuit breaker structure

Info

Publication number: CN211858550U
Application number: CN202021001769.2U
Authority: CN
Inventors: 蔡品花
Original assignee: Xiamen Wilsons Electrical Co ltd
Current assignee: Xiamen Wilsons Electrical Co ltd
Priority date: 2020-06-04
Filing date: 2020-06-04
Publication date: 2020-11-03
Anticipated expiration: 2030-06-04

Abstract

The utility model provides a multiple shielded electronic type moulded case circuit breaker structure, include: the lower assembly lid and the upper assembly lid of combination assemble each other, two long circular slots have been seted up to the equal symmetry in both sides around the upper assembly lid top, the lower part of long circular slot inner chamber is run through to inlay and is provided with the cavity casing, the inner chamber of cavity casing is provided with telescopic machanism, the top of cavity casing is run through and is provided with mounting screw. The utility model discloses during the dismantlement, make its and screw thread mounting hole separation through the rotatory mounting screw of screwdriver, because the cavity casing sets up the inside at last assembly lid for inlaying, consequently the mounting screw carries on spacingly through limit nut to the mounting screw with screw thread mounting hole after-separating, makes the mounting screw can not break away from the inner chamber of cavity casing, easy operation, the integral type design has improved operating personnel's work efficiency, can not lead to losing of mounting screw moreover, guarantee the normal clear of assembly and maintenance operation.

Description

Multi-shielded electronic molded case circuit breaker structure

Technical Field

The utility model belongs to the technical field of the circuit breaker and specifically relates to a multiple shielded electronic type moulded case circuit breaker structure is related to.

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, and can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply line, a motor and the like, automatically cutting off a circuit when a fault such as severe overload or short circuit or undervoltage occurs, and the like, and has a function equivalent to a combination of a fuse type switch and an over-under-heat relay and the like. Furthermore, no parts need to be changed after breaking the fault current. At present, the method is widely applied, and power distribution is an extremely important link in the generation, transmission and use of electricity, a power distribution system comprises a transformer and various high-voltage and low-voltage electrical equipment, and a low-voltage circuit breaker is an electrical appliance with a large using amount.

Along with the development of science and technology, electronic type circuit breaker's use is also more and more extensive, and shielding formula circuit breaker also is one of the circuit breaker commonly used, and the circuit breaker object generally is two plastic housing of assembling, but current circuit breaker adopts the mode that the screw was screwed the installation in the in-process of assembling mostly, consequently need take the assembly screw many times around the installation, has reduced the efficiency of assembly on the one hand, causes losing of screw very easily at the in-process of maintenance moreover, influences operating personnel's work.

SUMMERY OF THE UTILITY MODEL

The utility model provides a multiple shielded electronic type moulded case circuit breaker structure possesses pre-assembly screw installation effectiveness height, the advantage of convenient operation to solve the problem that above-mentioned background art mentioned

The technical scheme of the utility model is realized like this: multiple shielded electronic molded case circuit breaker structure includes: the lower assembly lid and the last assembly lid of mutual assembly combination, two long circular slots have been seted up to the equal symmetry in both sides around going up the assembly lid top, the lower part of long circular slot inner chamber is run through and is inlayed and be provided with the cavity casing, the inner chamber of cavity casing is provided with telescopic machanism, the top of cavity casing is run through and is provided with the installation screw, the threaded end of installation screw runs through cavity casing and telescopic machanism in proper order and extends to the below of assembly lid, telescopic machanism's lower surface welding has the limit nut with installation screw threaded connection, two screw thread mounting holes with installation screw threaded end adaptation are seted up to the equal symmetry in both sides around the lower assembly lid upper surface.

Preferably, the right side of the upper surface of the upper assembling cover is provided with a display screen, and the left side of the display screen is provided with a switch.

Preferably, three wiring holes are symmetrically formed in the front side and the rear side of the lower assembling cover and the upper assembling cover, and installation through holes for wiring are formed in the lower surface of the wiring hole in the bottom of the inner cavity of the lower assembling cover in a penetrating mode.

Preferably, the four corners of the upper surface of the upper assembly cover are all communicated with each other to form a flat groove, an auxiliary screw is arranged in the inner cavity of the flat groove, and screw holes matched with the auxiliary screw are formed in the four corners of the upper surface of the lower assembly cover.

Preferably, telescopic machanism is including welding the last dull and stereotyped of hollow shell inner wall and with hollow shell inner wall sliding connection's lower dull and stereotyped, the symmetrical welding has two springs between last dull and stereotyped and the lower dull and stereotyped.

Preferably, the surface of the upper half section of the mounting screw is smooth, the surface of the lower half section of the mounting screw is provided with threads, the surfaces of the upper flat plate and the lower flat plate are both provided with circular through holes in a penetrating way, and the diameter of the lower half part of the mounting screw is smaller than the aperture of the circular through holes.

By adopting the technical scheme, the beneficial effects of the utility model are that:

the utility model discloses a to assemble down the lid and cover the lock of counterpointing in one with last assembly, then rotate the mounting screw through the screwdriver, it can install the circuit breaker to treat mounting screw and threaded mounting hole threaded connection, when dismantling, make it separate with threaded mounting hole through the rotatory mounting screw of screwdriver, because the inside of cavity casing for inlaying the setting at last assembly lid, consequently, spacing is carried out the mounting screw through limit nut after mounting screw and the threaded mounting hole separation, make the mounting screw can not break away from the inner chamber of hollow shell, and is simple in operation, the integral type design has improved operating personnel's work efficiency, and can not lead to losing of mounting screw, guarantee the normal clear of assembly and maintenance operation.

The utility model discloses a setting up of supplementary screw has played further stable effect to the connection of assembling the lid on the lower assembly lid.

The utility model discloses a cooperation of going up flat board, lower flat board and spring is used for the assembly of mounting screw and the process of dismantling are more smooth-going, and the process of marcing of mounting screw is more stable.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

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

FIG. 2 is a schematic view of the upper assembly cover of the present invention;

FIG. 3 is an exploded view of the internal structure of the hollow shell of the present invention;

fig. 4 is a schematic view of the hollow shell structure of the present invention with the bottom turned upwards.

Wherein: 1. a lower assembly cover; 2. an upper assembly cover; 3. a long circular groove; 4. a hollow housing; 5. a telescoping mechanism; 51. an upper flat plate; 52. a lower flat plate; 53. a spring; 54. a circular through hole; 6. mounting screws; 7. a limit nut; 8. a threaded mounting hole; 9. a display screen; 10. a switch member; 11. wiring holes; 12. mounting a through hole; 13. flattening the groove; 14. an auxiliary screw; 15. and (4) screw holes.

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 efforts belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: multiple shielded electronic molded case circuit breaker structure includes: the lower assembly cover 1 and the upper assembly cover 2 are assembled and combined with each other, a display screen 9 is arranged on the right side of the upper surface of the upper assembly cover 2, a switch 10 is arranged on the left side of the display screen 9, three wiring holes 11 are symmetrically formed in the front side and the rear side of the lower assembly cover 1 and the front side and the rear side of the upper assembly cover 2, mounting through holes 12 for wiring are formed in the lower surfaces of the wiring holes 11 in the bottom of the inner cavity of the lower assembly cover 1 in a penetrating manner, flat grooves 13 are formed in the four corners of the upper surface of the upper assembly cover 2 in a penetrating manner, auxiliary screws 14 are arranged in the inner cavity of the flat grooves 13, screw holes 15 matched with the auxiliary screws 14 are formed in the four corners of the upper surface of the lower assembly cover 1, a further stabilizing effect is achieved by the arrangement of the auxiliary screws 14 on the connection of the upper assembly covers 2 of the lower assembly cover 1, two long circular grooves 3 are symmetrically formed in the front side and the rear side of the top of the, the inner cavity of the hollow shell 4 is provided with a telescopic mechanism 5, the telescopic mechanism 5 comprises an upper flat plate 51 welded on the inner wall of the hollow shell 4 and a lower flat plate 52 connected with the inner wall of the hollow shell 4 in a sliding manner, two springs 53 are symmetrically welded between the upper flat plate 51 and the lower flat plate 52, the assembling and disassembling processes of the mounting screws 6 are smoother through the matching use of the upper flat plate 51, the lower flat plate 52 and the springs 53, the advancing process of the mounting screws 6 is more stable, the top of the hollow shell 4 is provided with the mounting screws 6 in a penetrating manner, the upper half section of the mounting screws 6 is smooth in surface, the lower half section of the mounting screws 6 is provided with threads, the surfaces of the upper flat plate 51 and the lower flat plate 52 are provided with circular through holes 54 in a penetrating manner, the diameter of the lower half part of the mounting screws 6 is smaller than the aperture of the circular through holes 54, and the, the lower surface welding of telescopic machanism 5 has the spacing nut 7 with 6 threaded connection of mounting screw, and both sides are all seted up two and 6 threaded end adaptation's of mounting screw thread mounting hole 8 around the upper surface of lower assembly lid 1.

Working principle, the utility model discloses during the use, the user only need be with lower assembly lid 1 and upper assembly lid 2 counterpoint, then make the rotatory inner chamber of going into threaded mounting hole 8 of the screw end of mounting screw 6 through the rotatory mounting screw 6 of screwdriver, can install lower assembly lid 1 and upper assembly lid 2, when needing to dismantle or maintain, the user passes through the rotatory mounting screw 6 of screwdriver, make mounting screw 6 rotate out from the inner chamber of threaded mounting hole 8, then continue rotatory mounting screw 6 and make mounting screw 6 and stop nut 7 keep the threaded connection state, guarantee can not drive down dull and stereotyped 52 aversion under the effect of spring 53, guarantee the stability of mounting screw 6, then rotate other mounting screw 6 out in proper order and can dismantle and maintain the circuit breaker, in addition the stable assembly of mounting screw 6 is at the inner chamber of cavity casing 4 and through last dull and stereotyped 51, Lower flat plate 52 and spring 53 carry on spacingly, guarantee that mounting screw 6 does not drop, make things convenient for the installation in later stage to improve the work efficiency that the staff traded.

In summary, the following steps: through will descend assembly lid 1 and the counterpoint lock of upper assembling lid 2 to be in one, then rotate mounting screw 6 through the screwdriver, treat that mounting

screw

6 and 8 threaded connection of threaded mounting hole can be with the circuit breaker installation, during the dismantlement, make it and 8 separation of threaded mounting hole through the rotatory mounting screw 6 of screwdriver, because cavity casing 4 sets up the inside at upper assembling lid 2 for inlaying, consequently, mounting

screw

6 and 8 separation of threaded mounting hole back carry out spacingly through stop nut 7 to mounting screw 6, make mounting screw 6 can not break away from the inner chamber of cavity casing 4, and therefore, the operation is simple, the integral type design has improved operating personnel's work efficiency, and can not lead to losing of mounting screw 6, guarantee the normal clear of assembly and maintenance operation.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Multiple shielded electronic type moulded case circuit breaker structure, its characterized in that includes: a lower assembly cover (1) and an upper assembly cover (2) which are assembled and combined with each other, wherein the front side and the rear side of the top of the upper assembly cover (2) are symmetrically provided with two long circular grooves (3), the lower part of the inner cavity of the long circular groove (3) is embedded with a hollow shell (4) in a penetrating way, the inner cavity of the hollow shell (4) is provided with a telescopic mechanism (5), the top of the hollow shell (4) is provided with a mounting screw (6) in a penetrating way, the thread end of the mounting screw (6) penetrates through the hollow shell (4) and the telescopic mechanism (5) in sequence and extends to the lower part of the upper assembling cover (2), the lower surface of the telescopic mechanism (5) is welded with a limit nut (7) which is in threaded connection with the mounting screw (6), two thread mounting holes (8) matched with the thread ends of the mounting screws (6) are symmetrically formed in the front side and the rear side of the upper surface of the lower mounting cover (1).

2. The multi-shielded electronic molded case circuit breaker structure of claim 1, wherein: the right side of the upper surface of the upper assembling cover (2) is provided with a display screen (9), and the left side of the display screen (9) is provided with a switch piece (10).

3. The multi-shielded electronic molded case circuit breaker structure of claim 1, wherein: three wiring holes (11) are symmetrically formed in the front side and the rear side of the lower assembling cover (1) and the upper assembling cover (2), and installation through holes (12) for wiring are formed in the lower surface of the wiring holes (11) located at the bottom of the inner cavity of the lower assembling cover (1) in a penetrating mode.

4. The multi-shielded electronic molded case circuit breaker structure of claim 1, wherein: the four corners of the upper surface of the upper assembling cover (2) are all communicated with each other to form a flat groove (13), the inner cavity of the flat groove (13) is provided with an auxiliary screw (14), and the four corners of the upper surface of the lower assembling cover (1) are all provided with screw holes (15) matched with the auxiliary screw (14).

5. The multi-shielded electronic molded case circuit breaker structure of claim 1, wherein: telescopic machanism (5) including weld in last dull and stereotyped (51) of cavity casing (4) inner wall and with cavity casing (4) inner wall sliding connection's lower dull and stereotyped (52), the symmetrical welding has two springs (53) between last dull and stereotyped (51) and lower dull and stereotyped (52).

6. The multi-shielded electronic molded case circuit breaker structure of claim 5, wherein: the surface of the upper half section of the mounting screw (6) is smooth, the surface of the lower half section of the mounting screw is provided with threads, the surfaces of the upper flat plate (51) and the lower flat plate (52) are communicated with each other to form a circular through hole (54), and the diameter of the lower half section of the mounting screw (6) is smaller than the aperture of the circular through hole (54).