CN216648185U

CN216648185U - Low-voltage adjusting type circuit breaker

Info

Publication number: CN216648185U
Application number: CN202123035041.9U
Authority: CN
Inventors: 林作英
Original assignee: Nanjing Full House Electrical Switches Co ltd
Current assignee: Nanjing Full House Electrical Switches Co ltd
Priority date: 2021-12-06
Filing date: 2021-12-06
Publication date: 2022-05-31
Anticipated expiration: 2031-12-06

Abstract

The utility model discloses a low-voltage regulation type circuit breaker, which comprises a shell and a rear cover, wherein the rear cover is movably arranged at a port of the shell, a sliding groove is formed in the inner wall of one side, close to the port, of the shell, and a sliding block matched with the sliding groove is arranged on the rear cover; be provided with the inserted bar subassembly in the back lid, the inserted bar subassembly includes slide bar, locking piece and locking groove, and the outer wall in slide bar one side is installed to the locking piece symmetry, and the equal movable mounting of locking piece is in the locking groove, and one side symmetry of slide bar is installed and is used for ordering about the lock piece and slides from the jack-post of locking inslot. The utility model provides a low-voltage adjusting type circuit breaker which needs to be overhauled to maintain the using effect, therefore, during overhauling, a sliding rod can drive a pin rod to be far away from an opening through a sliding pull block, a bayonet matched with the pin rod is arranged on the inner wall of a shell, the connection with the bayonet is released through the pin rod, the locking between a rear cover and the shell is released, then a sliding block arranged on the rear cover slides along a track of a sliding groove, and the rear cover is separated from the shell.

Description

Low-voltage adjusting type circuit breaker

Technical Field

The utility model relates to the technical field of circuit breakers, in particular to a low-voltage regulation type circuit breaker.

Background

The breaker is a switching device which can close, carry and open/close the current under the condition of a normal loop and can close, carry and open/close the current under the condition of an abnormal loop within a specified time; 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.

The circuit breaker is at power transmission, occupy important position in the aspect of the use, the circuit breaker needs the change of accurate induced-current, and timely immediately cut off power supply's transport when the electric current is unusual, otherwise cause unexpected consequence and loss, in the use of traditional circuit breaker, power supply such as regular overhaul transformer substation mostly, but less to the maintenance of disconnector, on the one hand promptly because the structure of circuit breaker is accurate, under the condition of using, be difficult to dismantle, under the condition of long-term overhaul, be difficult to guarantee the accuracy that the circuit breaker cut off the power supply, be unfavorable for the work of staff and the safe going on.

In conclusion, the circuit breaker is difficult to dismantle among the prior art, under the condition of long-term overhaul, is difficult to guarantee the accuracy that the circuit breaker cut off the power, is unfavorable for staff's work and safe problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a low-voltage regulation type circuit breaker, aiming at solving the problems that a circuit breaker is difficult to disassemble and the accuracy of the circuit breaker for cutting off a power supply is difficult to ensure under the condition of long-term overhaul.

In order to achieve the above purpose, the utility model provides the following technical scheme: a low-voltage regulation type circuit breaker comprises a shell and a rear cover, wherein the rear cover is movably mounted at a port of the shell, a sliding groove is formed in the inner wall of one side, close to the port, of the shell, and a sliding block matched with the sliding groove is arranged on the rear cover; be provided with the inserted bar subassembly in the back lid, the inserted bar subassembly includes slide bar, locking piece and locking groove, the locking piece symmetry is installed the outer wall of slide bar one side, the equal movable mounting of locking piece is in the locking groove, one side symmetry of slide bar is installed and is used for ordering about the locking piece slips from the jack post in the locking groove.

Preferably, a mounting groove is formed in the rear cover, the inserted bar assembly is located in the mounting groove, the inserted bar assembly further comprises a fixing rod and springs, the springs are distributed on the outer wall of one side of the fixing rod in a linear array mode, one end of each spring is fixedly connected with a sliding rod, and the sliding rod is provided with a pin rod relative to the outer wall of one side of the locking block.

Preferably, the inserted link assembly further comprises a pressing plate and a fixing plate, the axial columns are symmetrically arranged on the outer wall of the lower side of the pressing plate, a through hole is formed in the center of the fixing plate, the axial columns extend to the outer wall of one side of the fixing plate through the through hole, and the outer walls of the axial columns are sleeved with the top springs.

Preferably, a fixing column is arranged on the outer side of the locking groove, the fixing plate is fixedly connected to the upper end of the fixing column, and one end of the top spring is fixedly connected to the outer wall of the upper side of the fixing plate.

Preferably, an opening is formed in an outer wall of the rear cover on a side opposite to the slider, and the pin rod penetrates through and extends to the outer wall on the side of the opening.

Preferably, the rear cover is provided with a sealing ring, and the sealing ring is movably connected with the outer wall of the port of the shell.

Preferably, the outer wall of the upper side of the sliding rod is provided with a pulling block, and the pulling block extends to the outer wall of one side of the rear cover.

Preferably, the outer wall of one side of the housing is provided with a wiring hole.

Preferably, the outer wall of one side of the shell is provided with a movable opening, and a deflector rod is movably arranged in the movable opening.

Preferably, the lower end of the movable opening is provided with a warning indicator.

In the technical scheme, the utility model has the following beneficial effects:

when the circuit breaker is used, the circuit breaker needs to be overhauled to maintain the using effect, so that during overhauling, the sliding rod can drive the pin rod to be far away from the opening through the sliding pull block, the inner wall of the shell is provided with a bayonet matched with the pin rod, the connection between the rear cover and the bayonet is released through the pin rod, the rear cover is unlocked with the shell, then the sliding block arranged on the rear cover slides along the track of the sliding groove, and the rear cover is separated from the shell so as to be convenient for overhauling the inside;

two, with the back lid after the spout installation, press the push plate in the inserted bar subassembly, make the clamp plate drive the jack-prop and eliminate the top that comes from the top spring and touch the power, pass the fixed plate and move to one side in locking groove, there is the locking piece at the locking inslot, and the locking piece is the telescopic structure, and one side of keeping away from the slide bar at the locking piece is provided with the chamfer, consequently when the jack-prop is downward with the locking piece contact, the locking piece will receive the extrusion force and inwards contract, the outer wall loses the resistance that comes from the locking groove simultaneously, will receive the power of spring this moment, slide to open one side, the one end of pin pole touches with the inner wall of the bayonet socket of shells inner wall setting mutually, accomplish the locking, be convenient for install, and be provided with the sealing washer on the back lid, guarantee that circuit breaker inner circuit's operation is in dry state, reduce the interference of external environment to the circuit breaker, do benefit to actual use.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

This document provides an overview of various implementations or examples of the technology described in this disclosure, and is not a comprehensive disclosure of the full scope or all features of the disclosed technology.

Drawings

In order to more clearly illustrate the embodiments of the present application or technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is a schematic diagram of an overall structure provided in an embodiment of the present invention;

FIG. 2 is a schematic diagram of a rear cover mounting structure according to an embodiment of the present invention;

FIG. 3 is a schematic view of a chute structure provided in an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a rear cover according to an embodiment of the present invention;

fig. 5 is a schematic view of a mounting groove structure provided in an embodiment of the present invention.

Description of reference numerals:

1. a housing; 2. a rear cover; 3. an insertion rod assembly; 4. a wiring hole; 5. a deflector rod; 6. an alarm; 11. a chute; 12. a movable opening; 20. mounting grooves; 30. pressing a plate; 31. fixing the rod; 32. a spring; 33. a slide bar; 331. pulling the block; 34. a pin rod; 35. a locking block; 36. a locking groove; 37. a fixing plate; 38. a column shaft; 39. a spring is supported; 21. a slider; 22. an opening; 23. and (5) sealing rings.

Detailed Description

In order to make the technical solutions of the present invention better understood, those skilled in the art will now describe the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1-5, a low-voltage adjusting circuit breaker includes a housing 1 and a rear cover 2, wherein the rear cover 2 is movably mounted at a port of the housing 1, a sliding groove 11 is formed in an inner wall of the housing 1 at a side close to the port, and a sliding block 21 matched with the sliding groove 11 is arranged on the rear cover 2; during maintenance, the sliding rod 33 can drive the pin rod 34 to be far away from the opening 22 through the sliding pull block 331, the inner wall of the shell 1 is provided with a bayonet matched with the pin rod 34, the connection with the bayonet is released through the pin rod 34, so that the locking of the rear cover 2 and the shell 1 is released, then the sliding block 21 arranged on the rear cover 2 slides along the track of the sliding groove 11, so that the rear cover 2 is separated from the shell 1, and the inside of the circuit breaker is convenient to maintain; the rear cover 2 is internally provided with an inserted bar assembly 3, the inserted bar assembly 3 comprises a sliding bar 33, locking blocks 35 and locking grooves 36, the locking blocks 35 are symmetrically installed on the outer wall of one side of the sliding bar 33, the locking blocks 35 are movably installed in the locking grooves 36, and axial columns 38 used for driving the locking blocks 35 to slide away from the locking grooves 36 are symmetrically installed on one side of the sliding bar 33; after the rear cover 2 is installed along the sliding groove 11, the pressing plate 30 in the plunger assembly 3 is pressed, so that the pressing plate 30 drives the shaft column 38 to eliminate the abutting force from the abutting spring 39, the pressing plate passes through the fixing plate 37 and moves to one side of the locking groove 36, the locking block 35 is arranged in the locking groove 36, the locking block 35 is of a telescopic structure, and a chamfer is arranged on one side of the locking block 35 away from the sliding rod 33, so that when the shaft column 38 is downwards contacted with the locking block 35, the locking block 35 is inwards contracted by the extrusion force, meanwhile, the outer wall loses the resistance from the locking groove 36, the pressing plate is subjected to the force of the spring 32 and slides to one side of the opening 22 until one end of the pin rod 34 is contacted with the inner wall of the bayonet arranged on the inner wall of the shell 1, the locking is completed, the installation is convenient, the sealing ring 23 is arranged on the rear cover 2, the operation of the internal circuit of the circuit breaker is ensured to be in a dry state, and the interference of the external environment to the circuit breaker is reduced, is beneficial to practical use.

The working principle of the utility model is as follows: during the maintenance, the sliding rod 33 can drive the pin rod 34 to be far away from the opening 22 through the sliding pull block 331, the inner wall of the housing 1 is provided with a bayonet matched with the pin rod 34, the connection with the bayonet is released through the pin rod 34, so that the rear cover 2 is unlocked from the housing 1, then the sliding block 21 arranged on the rear cover 2 is slid along the track of the sliding chute 11, so that the rear cover 2 is separated from the housing 1, so as to facilitate the maintenance of the inside, and the installation is performed after the maintenance is finished, as the specific operation is as follows, after the rear cover 2 is installed along the sliding chute 11, the pressing plate 30 in the plunger assembly 3 is pressed, so that the pressing plate 30 drives the shaft column 38 to eliminate the abutting force from the abutting spring 39, the pressing plate passes through the fixing plate 37 to move to one side of the locking groove 36, the locking block 35 is in the locking groove 36, and the locking block 35 is in a telescopic structure, and a chamfer is arranged on one side of the locking block 35 far away from the sliding rod 33, therefore when the jack post 38 contacts with the locking piece 35 downwards, the locking piece 35 will receive the inward contraction of extrusion force, the outer wall loses the resistance from the locking groove 36, the force of the spring 32 will be received at this moment, slide to one side of the opening 22, until the one end of the pin rod 34 contacts with the inner wall of the bayonet of the inner wall of the shell 1, the locking is completed, the installation is convenient, and the sealing ring 23 is arranged on the rear cover 2, the operation of the internal circuit of the circuit breaker is ensured to be in a dry state, the interference of the external environment to the circuit breaker is reduced, and the practical use is facilitated.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the utility model.

Claims

1. The low-voltage adjusting type circuit breaker is characterized by comprising a shell (1) and a rear cover (2), wherein the rear cover (2) is movably mounted at a port of the shell (1), a sliding groove (11) is formed in the inner wall of one side, close to the port, of the shell (1), and a sliding block (21) matched with the sliding groove (11) is arranged on the rear cover (2);

be provided with inserted bar subassembly (3) in back lid (2), inserted bar subassembly (3) are including slide bar (33), locking piece (35) and locking groove (36), locking piece (35) symmetry is installed the outer wall of slide bar (33) one side, the equal movable mounting of locking piece (35) locking groove (36), one side symmetry of slide bar (33) is installed and is used for ordering about locking piece (35) slip from jack-post (38) in locking groove (36).

2. A low voltage regulating type circuit breaker according to claim 1, characterized in that a mounting groove (20) is provided in said rear cover (2), said plunger assembly (3) is located in said mounting groove (20), said plunger assembly (3) further comprises a fixing rod (31) and a spring (32), said spring (32) is distributed in a linear array on the outer wall of one side of said fixing rod (31), one end of said spring (32) is fixedly connected with a sliding rod (33), and said sliding rod (33) is provided with a pin rod (34) on the outer wall of one side of said locking block (35).

3. The low-voltage regulation type circuit breaker according to claim 2, wherein the inserted link assembly (3) further comprises a pressing plate (30) and a fixing plate (37), the shaft posts (38) are symmetrically arranged on the outer wall of the lower side of the pressing plate (30), a through hole is formed in the center of the fixing plate (37), the shaft posts (38) extend to the outer wall of one side of the fixing plate (37) through the through holes, and a top spring (39) is sleeved on the outer wall of the shaft posts (38).

4. A low voltage regulating type circuit breaker according to claim 3, wherein a fixed post is provided at an outer side of the locking groove (36), the fixed plate (37) is fixedly connected to an upper end of the fixed post, and one end of the top spring (39) is fixedly connected to an outer wall of an upper side of the fixed plate (37).

5. A circuit breaker of the low-voltage regulation type according to claim 2, characterized in that the external wall of the rear cover (2) on the side opposite to the slider (21) is provided with an opening (22), the pin (34) penetrating and extending to the external wall on the side of the opening (22).

6. A low-voltage regulating circuit breaker according to claim 1, characterized in that said rear cover (2) is provided with a sealing ring (23), said sealing ring (23) being movably connected to the outer wall of the port of said casing (1).

7. A low voltage regulating type circuit breaker according to claim 2, characterized in that the outer wall of the upper side of said sliding rod (33) is provided with a pull block (331), said pull block (331) extending to the outer wall of the side of said rear cover (2).

8. Low voltage regulating circuit breaker according to claim 1, characterized in that the outer wall of one side of the casing (1) is provided with wiring holes (4).

9. A low-voltage regulating circuit breaker according to claim 1, characterized in that the outer wall of one side of said casing (1) is provided with a movable opening (12), and a driving lever (5) is movably mounted in said movable opening (12).

10. Low voltage regulator circuit breaker according to claim 9, characterized in that said movable mouth (12) is provided at its lower end with an alarm (6).