Low-voltage alternating-current circuit breaker

Abstract

The utility model relates to a low-voltage alternating-current circuit breaker, which comprises a low-voltage alternating-current circuit breaker body and a mounting strip-shaped plate arranged on the left side of the low-voltage alternating-current circuit breaker body, the right end of the mounting strip-shaped plate is fixedly connected with a convex block, the left end of the low-voltage alternating-current circuit breaker body is provided with a groove, and the middle part of the inner end of the convex block is fixedly connected with a cross rod. The upper end and the lower end of the transverse rod are fixedly connected with miniature electric push rods, the output ends of the miniature electric push rods are fixedly connected with profile blocks, the ends, away from the miniature electric push rods, of the profile blocks are fixedly connected with spherical clamping pieces, and the upper inner wall and the lower inner wall of the groove are provided with arc-shaped clamping openings. According to the scheme, the power switch is pressed by hand to enable the two miniature electric push rods to be reversely conveyed out of the protruding block at the same time until the two spherical clamping pieces are clamped into the two arc-shaped bayonets to be fixed, so that the disassembly and assembly process of the low-voltage alternating-current circuit breaker body is time-saving, labor-saving and high in efficiency, and the use efficiency of the low-voltage alternating-current circuit breaker body is improved.

Description

Technical Field

[0001] The utility model relates to a low-voltage AC circuit breaker, in particular to a low-voltage AC circuit breaker applied in the field of power equipment. Background Art

[0002] A low voltage circuit breaker (formerly known as an automatic switch) is a switch that can connect and disconnect normal load current and overload current, as well as short circuit current. In addition to controlling the circuit, the low voltage circuit breaker also has certain protection functions, such as overload, short circuit, undervoltage and leakage protection. The low voltage AC circuit breaker can be fixed to the installation base by bolts, which is inconvenient to disassemble.

[0003] In order to solve the problem that low-voltage AC circuit breakers can be fixed on the installation base by bolts and are inconvenient to disassemble, low-voltage AC circuit breakers on the market use a pull-and-drop buckle design for easy installation, which has a certain market share.

[0004] The low-voltage AC circuit breakers currently on the market use a pull-and-pull buckle design for easy installation, but the pull-and-pull buckle design is prone to damage to the buckle, making its service life not long enough, resulting in low disassembly and assembly efficiency of the low-voltage AC circuit breakers. Utility Model Content

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the utility model is that the low-voltage AC circuit breaker in the existing market adopts a pull-and-pull buckle design for convenient installation, but the pull-and-pull buckle design is prone to damage to the buckle, making its service life not long enough, resulting in low disassembly and assembly efficiency of the low-voltage AC circuit breaker.

[0006] In order to solve the above problems, the utility model provides a low-voltage AC circuit breaker, comprising a low-voltage AC circuit breaker body and a mounting strip plate arranged on the left side of the low-voltage AC circuit breaker body, the right end of the mounting strip plate is fixedly connected with a protruding block, the left end of the low-voltage AC circuit breaker body is provided with a groove, the middle part of the inner end of the protruding block is fixedly connected with a cross bar, the upper and lower ends of the cross bar are fixedly connected with a micro electric push rod, the output end of the micro electric push rod is fixedly connected with a profile block, and the profile block extends out of the protruding block, and one end of the profile block away from the micro electric push rod is fixedly connected with a spherical clamp, and the upper and lower inner walls of the groove are provided with arc-shaped bayonet openings.

[0007] In the above-mentioned low-voltage AC circuit breaker, in this solution, by manually pressing the power switch, the two miniature electric push rods are simultaneously transported in the opposite direction outside the protruding block until the two spherical clamps are engaged in the two arc-shaped clamping holes for fixation, so that the disassembly and assembly process of the low-voltage AC circuit breaker body is time-saving, labor-saving and efficient, which is conducive to improving the use efficiency of the low-voltage AC circuit breaker body.

[0008] As a further improvement of the present application, the groove and the protruding block are engaged with each other.

[0009] As a further improvement of the present application, the corresponding arc-shaped bayonet and the spherical clamp are engaged with each other.

[0010] As a further improvement of the present application, side clamping grooves are symmetrically provided on the left and right inner walls of the raised block, and side clamping blocks are fixedly connected to the left and right ends of the cross bar.

[0011] As another improvement of the present application, the corresponding side clamping blocks and side clamping grooves are engaged with each other, and a baffle is hingedly connected to the front end of the protruding block.

[0012] As another improved supplement of the present application, a power switch is fixedly connected to the right side of the front end of the low-voltage AC circuit breaker body, and the power switch is electrically connected to the two miniature electric push rods through a wire.

[0013] In summary, in this solution, by pressing the power switch by hand, the two micro electric push rods are simultaneously transported in reverse outside the raised block until the two spherical clamps are engaged in the two arc-shaped clamps for fixation, so that the low-voltage AC circuit breaker body can be conveniently installed on the mounting strip plate, so that the disassembly and assembly process of the low-voltage AC circuit breaker body is time-saving, labor-saving and efficient, which is beneficial to improving the use efficiency of the low-voltage AC circuit breaker body. At the same time, when the micro electric push rod needs to be maintained, the cross bar can be pulled out horizontally from the position of the baffle, which can improve the disassembly performance of the micro electric push rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a side view of a low-voltage AC circuit breaker body according to a first embodiment of the present application;

[0015] Figure 2 This is a side cross-sectional view of a protruding block according to a first embodiment of the present application;

[0016] Figure 3 For the second implementation of this application Figure 2 A partial enlarged view of the middle raised block.

[0017] Description of the numbers in the figure:

[0018] 1. Low-voltage AC circuit breaker body; 2. Power switch; 3. Groove; 4. Arc-shaped bayonet; 5. Spherical clamp; 6. Profile block; 7. Raised block; 8. Side clamping groove; 9. Side clamping block; 10. Installation strip plate; 11. Micro electric push rod; 12. Baffle. DETAILED DESCRIPTION

[0019] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0020] The first implementation method:

[0021] Figure 1-2The invention shows a low-voltage AC circuit breaker body 1 and a mounting strip plate 10 arranged on the left side of the low-voltage AC circuit breaker body 1, wherein the right end of the mounting strip plate 10 is fixedly connected with a protruding block 7, and the left end of the low-voltage AC circuit breaker body 1 is provided with a groove 3, and the middle part of the inner end of the protruding block 7 is fixedly connected with a cross bar, and the upper and lower ends of the cross bar are fixedly connected with a micro electric push rod 11, and the output end of the micro electric push rod 11 is fixedly connected with a profile block 6, and the profile block 6 extends out of the protruding block 7, and the end of the profile block 6 away from the micro electric push rod 11 is fixedly connected with a spherical clamp 5, and the upper and lower inner walls of the groove 3 are provided with arc-shaped bayonet 4.

[0022] Figure 1-2 It is shown that the groove 3 is engaged with the raised block 7, the corresponding arc-shaped bayonet 4 is engaged with the spherical clamp 5, the front end of the raised block 7 is hinged with a baffle 12, and the front right side of the low-voltage AC circuit breaker body 1 is fixedly connected with a power switch 2, and the power switch 2 is electrically connected to the two miniature electric push rods 11 through wires.

[0023] Figure 1-2 It is shown that when the low-voltage AC circuit breaker body 1 is installed on the installation strip plate 10 according to the present invention, the groove 3 can be first engaged with the protruding block 7, and then the power switch 2 can be pressed by hand to make the two micro-electric push rods 11 simultaneously reversely transported outside the protruding block 7 until the two spherical clamps 5 are engaged in the two arc-shaped bayonet holes 4 for fixing, so that the low-voltage AC circuit breaker body 1 can be conveniently installed on the installation strip plate 10, and threaded fixing and buckle fixing that requires force to disassemble are no longer required. In the reverse direction, the micro-electric push rod 11 is retracted to disengage the spherical clamp 5 from the arc-shaped bayonet hole 4, so that the low-voltage AC circuit breaker body 1 can be horizontally moved out of the installation strip plate 10, so that the disassembly and assembly process of the low-voltage AC circuit breaker body 1 is time-saving, labor-saving and efficient, which is conducive to improving the use efficiency of the low-voltage AC circuit breaker body 1.

[0024] The second implementation method:

[0025] Figure 3 It is shown that the left and right inner walls of the raised block 7 are symmetrically provided with side slots 8, and the left and right ends of the cross bar are fixedly connected with side blocks 9, and the corresponding side blocks 9 and the side slots 8 are engaged with each other. At the same time, side blocks 9 are arranged on both sides of the cross plate of the low-voltage AC circuit breaker body 1, and the side blocks 9 can be slidably engaged with the side slots 8. When the micro electric push rod 11 needs to be maintained and repaired, the micro electric push rod 11 can be retracted to make the spherical clamping part 5 also pulled back into the raised block 7, and then the baffle 12 can be opened to laterally pull the cross bar out from the position of the baffle 12, which can improve the disassembly performance of the micro electric push rod 11.

[0026] In view of current practical needs, the protection scope of the above-mentioned implementation mode adopted in this application is not limited to this. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A low voltage AC circuit breaker, characterized in that: The invention comprises a low-voltage AC circuit breaker body (1) and a mounting strip plate (10) arranged on the left side of the low-voltage AC circuit breaker body (1), wherein the right end of the mounting strip plate (10) is fixedly connected to a protruding block (7), the left end of the low-voltage AC circuit breaker body (1) is provided with a groove (3), the middle part of the inner end of the protruding block (7) is fixedly connected to a cross bar, the upper and lower ends of the cross bar are fixedly connected to a micro electric push rod (11), the output end of the micro electric push rod (11) is fixedly connected to a profile block (6), and the profile block (6) extends out of the protruding block (7), the end of the profile block (6) away from the micro electric push rod (11) is fixedly connected to a spherical clamp (5), and the upper and lower inner walls of the groove (3) are provided with arc-shaped clamping holes (4).

2. A low voltage AC circuit breaker according to claim 1, characterized in that: The groove (3) is engaged with the protruding block (7).

3. A low voltage AC circuit breaker according to claim 1, characterized in that: The corresponding arc-shaped bayonet (4) and the spherical clamp (5) are engaged with each other.

4. A low voltage AC circuit breaker according to claim 1, characterized in that: Side clamping grooves (8) are symmetrically provided on the left and right inner walls of the protruding block (7), and side clamping blocks (9) are fixedly connected to the left and right ends of the crossbar.

5. A low voltage AC circuit breaker according to claim 4, characterized in that: The corresponding side clamping blocks (9) and side clamping grooves (8) are mutually engaged, and the front end of the protruding block (7) is hingedly connected with a baffle (12).

6. A low voltage AC circuit breaker according to claim 1, characterized in that: A power switch (2) is fixedly connected to the right side of the front end of the low-voltage AC circuit breaker body (1), and the power switch (2) is electrically connected to two micro electric push rods (11) via a wire.

Images