CN212874369U

CN212874369U - Residual current operated circuit breaker's guard shield assembly structure

Info

Publication number: CN212874369U
Application number: CN202022095528.5U
Authority: CN
Inventors: 宋志东; 薛明亮; 刘征; 田玉国; 黄立强
Original assignee: Cetc North Intelligent Electric Co ltd
Current assignee: Cetc North Intelligent Electric Co ltd
Priority date: 2020-09-23
Filing date: 2020-09-23
Publication date: 2021-04-02
Anticipated expiration: 2030-09-23

Abstract

The utility model relates to the technical field of circuit breakers and discloses a protective cover assembling structure of a residual current operated circuit breaker, which comprises a circuit breaker and a protective cover, two connecting blocks are symmetrically fixed on one side of the circuit breaker, each connecting block is provided with a connecting hole, a positioning plate is fixed on the other side of the circuit breaker, the positioning plate is provided with at least one positioning hole, one side of the protective cover is provided with a first through hole, the two sides in the first through hole are respectively connected with a first shifting block in a sliding way, the outer ends of the two first shifting blocks extend out of the first through hole, the two first shifting blocks are connected through a first spring, rotating pins are fixed on the inner ends of the first shifting blocks far away from one side, the tail ends of the rotating pins penetrate through the extending shield, and the two rotating pins are respectively used for movably inserting and connecting with the connecting holes on the two connecting blocks, and the tail ends of the rotating pins penetrate through the corresponding connecting holes and are connected with the limiting piece. The utility model discloses simple structure has the guard shield that can dismantle the connection with the circuit breaker, and the protection circuit breaker is not fragile.

Description

Residual current operated circuit breaker's guard shield assembly structure

Technical Field

The utility model relates to a circuit breaker technical field especially relates to a residual current operated circuit breaker's guard shield assembly structure.

Background

At present, in the existing residual current operated circuit breakers, the shields are all fastened by screws. The spiral shell fastening mode is with high costs, and production efficiency is low, scrapes brokenly wire insulating skin easily in the production process, screws up and dismantles the easy smooth silk of in-process casing, leads to the casing to damage, and the guard shield does not have the radiating effect.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a residual current operated circuit breaker's guard shield assembly structure, includes circuit breaker and guard shield, two connecting blocks are fixed to one side symmetry of circuit breaker, all set up the connecting hole on every connecting block, and the opposite side of circuit breaker is fixed with the locating plate, set up at least one locating hole on the locating plate.

One side of guard shield is provided with first through-hole, both sides difference sliding connection has first shifting block in the first through-hole, and the outer end of two first shifting blocks stretches out first through-hole, and through first spring coupling between two first shifting blocks, and one side all is fixed with the rotating pin keeping away from mutually in the inner of first shifting block, the rotating pin end runs through and stretches out the guard shield, and two rotating pins are used for respectively with two connecting hole activity grafting on the connecting block, the end of rotating pin pass corresponding connecting hole and be connected with the spacing piece.

The other side of the protective cover is provided with a second through hole corresponding to the positioning hole, a second shifting block is connected in the second through hole in a sliding mode, the outer end of the second shifting block extends out of the second through hole and is externally connected with a second spring, the other end of the second spring is fixed to the outer side of the protective cover, a positioning pin is fixed to the inner end of the second shifting block, and the tail end of the positioning pin penetrates through the protective cover and is used for being connected with the corresponding positioning hole in an inserting mode.

Furthermore, a fixing plate is fixed on the outer side of the protective cover and connected with the second spring.

Furthermore, a plurality of rows of radiating holes are formed in the shell of the protective cover, movable blocks are movably arranged in the radiating holes and provided with a pair of first side surfaces and a pair of second side surfaces, the two first side surfaces and the two second side surfaces are oppositely arranged, and a plurality of air holes penetrating through the movable blocks are formed in the second side surfaces.

Furthermore, the protective cover is provided with a plurality of through holes, the through holes respectively penetrate through the heat dissipation holes in the same row at corresponding positions, rotating shafts are rotatably installed in the through holes, and the rotating shafts are respectively and fixedly connected with the movable blocks in the heat dissipation holes.

Furthermore, the top surface and the bottom surface of the movable block are in sealing contact with the inner walls of the corresponding heat dissipation holes.

Furthermore, the rotating pin is a threaded pin, and the limiting part is an annular block-shaped structure which is spirally connected to the rotating pin.

The utility model has the advantages that:

the utility model discloses a guard shield of convenient and circuit breaker installation, one side of guard shield is provided with first through-hole, when the installation, stir two first boards of dialling, make two rotating pin retract in the guard shield, thereby make one side of guard shield be located between two connecting blocks, loosen first board of dialling, this moment under the restoring force effect of first spring, the rotating pin passes the connecting hole on the connecting block, at last the installation of guard shield is accomplished at the terminal installation locating part of rotating pin, and easy operation is convenient, guard shield one side passes through the rotating pin rotation with the connecting block and is connected the back, the opposite side rotates to locating plate department, make locating pin and locating hole cooperation in the second through-hole, thereby fix the position of guard shield.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a schematic structural diagram of the circuit breaker of the present invention;

fig. 2 is a schematic structural view of the protective cover of the present invention;

fig. 3 is a schematic view of a part of the structure of the present invention.

In the figure: the circuit breaker comprises a circuit breaker 1, a connecting block 2, a connecting hole 3, a positioning plate 4, a positioning hole 5, a shield 6, a heat dissipation hole 601, a through hole 602, a first through hole 701, a first shifting block 702, a first spring 703, a rotating pin 704, a limiting member 705, a side plate 8, a second through hole 901, a fixing plate 902, a second shifting block 903, a second spring 904, a rotating shaft 10, a first side surface 11, a movable block 12, an air hole 13 and a second side surface 14.

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. 1-3, a guard shield assembly structure of a residual current operated circuit breaker comprises a circuit breaker 1 and a guard shield 6, wherein two connecting blocks 2 are symmetrically fixed on one side of the circuit breaker 1, a connecting hole 3 is formed in each connecting block 2, a positioning plate 4 is fixed on the other side of the circuit breaker 1, and at least one positioning hole 5 is formed in the positioning plate 4.

One side of the shield 6 is provided with a first through hole 701, two sides in the first through hole 701 are respectively connected with first shifting blocks 702 in a sliding manner, the outer ends of the two first shifting blocks 702 extend out of the first through hole 701, the two first shifting blocks 702 are connected through a first spring 703, a rotating pin 704 is fixed on one side of the inner end of each first shifting block 702 far away from one side, the tail end of the rotating pin 704 penetrates through and extends out of the shield 6, the two rotating pins 704 are respectively used for being movably inserted into connecting holes 3 in the two connecting blocks 2, and the tail end of the rotating pin 704 penetrates through the corresponding connecting hole 3 and is connected with a limiting piece 705.

The other side of the shield 6 is provided with a second through hole 901 corresponding to the positioning hole 5, a second shifting block 903 is connected in the second through hole 901 in a sliding mode, the outer end of the second shifting block 903 extends out of the second through hole 901 and is externally connected with a second spring 904, the other end of the second spring 904 is fixed to the outer side of the shield 6, a positioning pin is fixed to the inner end of the second shifting block 903, and the tail end of the positioning pin penetrates through the shield 6 and is used for being connected with the corresponding positioning hole 5 in an inserting mode.

Further, a fixing plate 902 is fixed to the outer side of the shield 6, the fixing plate 902 is connected to the second spring 904, and a side plate 8 is further provided on the shield 6, and the side plate 8 can be attached to and in contact with the surface of the circuit breaker 1.

Furthermore, a plurality of rows of heat dissipation holes 601 are formed in the shell of the shield 6, movable blocks 12 are movably arranged in the heat dissipation holes 601, each movable block 12 is provided with a pair of first side surfaces 11 and a pair of second side surfaces 14, the two first side surfaces 11 and the two second side surfaces 14 are oppositely arranged, and a plurality of air holes 13 penetrating through the movable blocks 12 are formed in the second side surfaces 14; when the second side surface 14 with the air holes 13 rotates to be in contact with the outside, the heat dissipation effect can be achieved, and when the first side surface 11 is in contact with the outside, the heat dissipation hole is sealed.

Furthermore, the shield 6 is provided with a plurality of through holes 602, the through holes 602 respectively penetrate through the heat dissipation holes 601 in the same row at corresponding positions, the through holes 602 are rotatably provided with the rotating shaft 10, and the rotating shaft 10 is respectively and fixedly connected with the movable blocks 12 in the heat dissipation holes 601; so as to drive the movable blocks 12 in the same row to rotate in the corresponding heat dissipation holes 601 through the rotating shaft 10.

Further, the top surface and the bottom surface of the movable block 12 are in sealing contact with the inner walls of the corresponding heat dissipation holes 601; so that the movable block 12 can seal the corresponding heat dissipation hole 601 when rotating to a certain position.

Further, the rotating pin 704 is a threaded pin, and the limiting member 705 is an annular block-shaped structure screwed on the rotating pin 704; so as to be convenient for installation and disassembly.

This device is when using, one side of guard shield 6 is provided with first through-hole, when the installation, stir two first boards of dialling, make two rotating pin 704 retract in the guard shield, thereby make one side of guard shield be located between two connecting blocks 2, loosen first board 702 of dialling, at this moment under the restoring force effect of first spring, rotating pin 704 passes the connecting hole on the connecting block 2, at last the installation of guard shield is accomplished at the terminal locating part 705 of rotating pin 704, easy operation is convenient, behind guard shield one side and connecting block 2 pass through the rotating pin rotation connection, the opposite side rotates to locating plate 4 departments, make locating pin and the cooperation of locating hole 5 in the second through-hole 901, thereby fix the position of guard shield 6.

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

1. The utility model provides a residual current operated circuit breaker's guard shield assembly structure which characterized in that: the circuit breaker comprises a circuit breaker (1) and a shield (6), wherein two connecting blocks (2) are symmetrically fixed on one side of the circuit breaker (1), each connecting block (2) is provided with a connecting hole (3), a positioning plate (4) is fixed on the other side of the circuit breaker (1), and at least one positioning hole (5) is formed in the positioning plate (4);

a first through hole (701) is formed in one side of the shield (6), first shifting blocks (702) are respectively connected to two inner sides of the first through hole (701) in a sliding mode, outer ends of the two first shifting blocks (702) extend out of the first through hole (701), the two first shifting blocks (702) are connected through a first spring (703), rotating pins (704) are fixed to the inner ends of the first shifting blocks (702) far away from one side, the tail ends of the rotating pins (704) penetrate through the shield (6), the two rotating pins (704) are respectively used for being movably inserted into connecting holes (3) in the two connecting blocks (2), and the tail ends of the rotating pins (704) penetrate through the corresponding connecting holes (3) and are connected with limiting pieces (705);

the other side of guard shield (6) sets up second through-hole (901) that corresponds with locating hole (5), sliding connection has second shifting block (903) in second through-hole (901), second through-hole (901) are stretched out to the outer end of second shifting block (903), and external second spring (904) have, the other end and the guard shield (6) outside of second spring (904) are fixed, the inner fixed locating pin of second shifting block (903), the end of locating pin runs through guard shield (6), and be used for with the locating hole (5) grafting that corresponds.

2. A shield assembly structure for a residual current operated circuit breaker according to claim 1, wherein: a fixing plate (902) is fixed on the outer side of the shield (6), and the fixing plate (902) is connected with a second spring (904).

3. A shield assembly structure for a residual current operated circuit breaker according to claim 1, wherein: a plurality of rows of heat dissipation holes (601) are formed in a shell of the shield (6), movable blocks (12) are movably arranged in the heat dissipation holes (601), each movable block (12) is provided with a pair of first side faces (11) and a pair of second side faces (14), the two first side faces (11) and the two second side faces (14) are oppositely arranged, and a plurality of air holes (13) penetrating through the movable blocks (12) are formed in the second side faces (14).

4. A shield assembly structure for a residual current operated circuit breaker according to claim 3, wherein: a plurality of through holes (602) are formed in the shield (6), the through holes (602) penetrate through the heat dissipation holes (601) in the same row at corresponding positions respectively, the rotating shaft (10) is rotatably mounted in the through holes (602), and the rotating shaft (10) is fixedly connected with the movable blocks (12) in the heat dissipation holes (601) respectively.

5. A shield assembly structure for a residual current operated circuit breaker according to claim 3, wherein: the top surface and the bottom surface of the movable block (12) are in sealing contact with the inner walls of the corresponding heat dissipation holes (601).

6. A shield assembly structure for a residual current operated circuit breaker according to claim 1, wherein: the rotating pin (704) is a threaded pin, and the limiting piece (705) is an annular block-shaped structure which is spirally connected to the rotating pin (704).