Power distribution circuit breaker convenient to install

Abstract

The utility model provides a power distribution circuit breaker convenient to install, which comprises an installation plate and a plurality of circuit breaker main bodies, the plurality of circuit breaker main bodies are provided with installation blocks, and the upper and lower sides of the plurality of installation blocks are provided with clamping grooves matched with the installation plate. The upper side and the lower side of the mounting block are both provided with connecting pieces used for fixedly mounting the mounting block and the mounting plate, when the circuit breaker main body is mounted, the clamping groove in the mounting block is clamped into the mounting plate along one side of the mounting plate, and the connecting pieces arranged on the upper side and the lower side of the mounting plate are pressed, so that one end of each connecting piece is clamped into the mounting hole in the mounting plate; compared with a traditional mode of adopting bolts for connection, the mode saves trouble and labor, the efficiency of installing and replacing the circuit breaker body is improved to a certain degree, the protective shell can effectively prevent the circuit breaker body from being exposed in the external environment and being affected by moisture, dust and the like, and the circuit breaker body is prevented from being damaged. And the circuit breaker main body is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breaker equipment, in particular to an electric power distribution circuit breaker which is easy to install. Background Art

[0002] Power distribution circuit breaker, also known as air switch or automatic switch, is an important power protection device. Its main function is to protect the circuit from abnormal conditions such as overload, short circuit and undervoltage, and automatically disconnect the circuit when necessary. Circuit breaker plays a key role in the power distribution system to ensure the safe and stable operation of the power system. Circuit breaker is usually composed of contact system, arc extinguishing device, protection system and operating mechanism. The contact system is responsible for connecting and disconnecting the main circuit, and the arc extinguishing device is used to eliminate the arc that may be generated when the circuit is disconnected. The protection system monitors the circuit status and triggers the action of the circuit breaker when an abnormal situation is found. The operating mechanism is responsible for executing the opening and closing action of the circuit breaker.

[0003] A circuit breaker generally includes a mounting plate and a circuit breaker body. When installing the circuit breaker body, the circuit breaker body is mostly inserted into the guide rail of the mounting plate, and the circuit breaker body and the mounting plate are fixed by bolts. During the installation process, the bolts need to be aligned with the holes on the circuit breaker body and the mounting plate one by one and tightened. This process is time-consuming, especially in scenarios where batch installation or rapid replacement of circuit breakers is required. The efficiency is low, and most existing circuit breaker bodies are exposed to the external environment and are easily affected by external factors such as dust, moisture, corrosive gases, etc., which may cause electrical performance degradation or cause failures, affecting the service life of the circuit breaker.

[0004] Therefore, it is necessary to provide a new power distribution circuit breaker that is easy to install to solve the above technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a power distribution circuit breaker which is easy to install.

[0006] The utility model provides an easy-to-install power distribution circuit breaker comprising: a mounting plate and a plurality of circuit breaker bodies arranged on the mounting plate, a plurality of the circuit breaker bodies are provided with mounting blocks, upper and lower sides of a plurality of the mounting blocks are provided with card slots matching the mounting plate, upper and lower sides of the mounting blocks are provided with connecting pieces for fixing the mounting blocks and the mounting plate, one end of the connecting piece is adapted to a plurality of mounting holes arranged oppositely on the upper and lower sides of the mounting plate, a plurality of bolt holes for fixing the mounting block and the wall are provided on the upper and lower sides of the mounting plate, a protective shell is hinged above the mounting plate, a magnetic strip is arranged on the upper end of the protective shell, a magnet is arranged on the upper end of the mounting plate, and the magnet and the magnetic strip are magnetically attracted to each other.

[0007] Preferably, two L-shaped card plates are arranged opposite to each other on one side of the mounting plate, and both upper and lower sides of the mounting plate are provided with I-shaped card slots matching one end of the two L-shaped card blocks.

[0008] Preferably, the connecting member includes an installation frame, a first movable rod, a second movable rod, a first spring, a second spring and a limit buckle, the side walls of the installation frame are fixedly connected to the through grooves opened on the upper and lower sides of the installation block, one end of the first movable rod is movably arranged in the installation cavity opened on the installation frame, one end of the first movable rod is fixedly connected to the side wall of the installation frame through the first spring, the second movable rod movably passes through the first movable rod and one side of the second movable rod moves in the installation cavity of the installation block, the limit buckle is fixedly sleeved on the outer side wall of the second movable rod, the second spring is sleeved on the outside of the second movable rod, and the two ends of the second spring are respectively fixedly connected to the limit buckle and one end of the first movable rod, and a limit member for limiting the limit buckle is provided on one side of the inner wall of the installation cavity of the installation frame, and one end of the limit member is connected to the first movable rod.

[0009] Preferably, the limiting member includes a fixed block, a clamping block, a third spring and a connecting rod, one end of the fixed block is fixedly connected to one side of the inner wall of the mounting cavity of the mounting frame, the clamping block is movably arranged on the inner wall of the movable groove of the fixed block, one end of the clamping block is fixedly connected to the inner wall of the movable groove through the third spring, one end of the connecting rod is movably arranged in a trapezoidal slide groove opened on the clamping block and moves therein, and the other end of the connecting rod is hinged to one side of a fixed plate arranged on the first movable rod.

[0010] Preferably, the end of the second movable rod is adapted to the mounting hole provided on the mounting plate.

[0011] Preferably, a plurality of positioning lines are provided on the mounting plate, and the plurality of positioning lines are all provided above the central axis of the mounting hole.

[0012] Preferably, an indicator bar is provided above the plurality of mounting blocks, and an extension line of the indicator bar is located directly above the central axis of the second movable rod.

[0013] Compared with the related art, the power distribution circuit breaker provided by the utility model which is easy to install has the following beneficial effects:

[0014] The utility model provides an electric power distribution circuit breaker which is easy to install. When installing the circuit breaker body, a card slot on a mounting block is inserted into the mounting plate along one side of the mounting plate, and connecting pieces arranged on the upper and lower sides of the mounting plate are pressed so that one end of the connecting piece is inserted into the mounting hole on the mounting plate, thereby limiting the mounting plate and the circuit breaker body. Compared with the traditional method of connecting by bolts, this method is more convenient and labor-saving, and improves the efficiency of installing and replacing the circuit breaker body to a certain extent. A protective shell is hinged on the mounting plate. When the circuit breaker body is used or installed and replaced, the protective shell can be adsorbed by a magnetic strip arranged on the protective shell and a magnetic block on the mounting plate to keep the body in an open state. When the use or installation and replacement is completed, the protective shell is covered, which can effectively prevent the circuit breaker body from being exposed to the external environment and being affected by moisture, dust, etc., thereby protecting the circuit breaker body to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic diagram of the overall structure of the power distribution circuit breaker that is easy to install provided by the utility model;

[0016] Figure 2 A schematic diagram of the protection status of the power distribution circuit breaker which is easy to install provided by the utility model;

[0017] Figure 3 A schematic diagram of the connection relationship between the mounting plate and the circuit breaker body provided by the utility model;

[0018] Figure 4 A schematic diagram of the circuit breaker body, mounting block and connector structure provided by the utility model;

[0019] Figure 5 for Figure 4 Schematic diagram of structural decomposition;

[0020] Figure 6 A schematic diagram of the structural disassembly of the connecting piece provided by the utility model;

[0021] Figure 7 A schematic diagram of the partial structure of the connector provided by the utility model;

[0022] Figure 8 This is a schematic diagram of the cross-sectional structure of the limiting member provided by the utility model.

[0023] Numbers in the figure: 1. Mounting plate; 2. Circuit breaker body; 3. Mounting block; 4. Slot; 5. Mounting hole; 6. Bolt hole; 7. Protective housing; 8. Magnet; 9. Magnetic strip; 10. Card plate; 11. Mounting frame; 12. First movable rod; 13. Second movable rod; 14. First spring; 15. Second spring; 16. Limit buckle; 17. Fixed block; 18. Card block; 19. Third spring; 20. Connecting rod; 21. Trapezoidal slide groove; 22. Positioning line; 23. Indicator strip. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0025] Please refer to Figure 1-Figure 8 ,in, Figure 1 A schematic diagram of the overall structure of the power distribution circuit breaker that is easy to install provided by the utility model; Figure 2 A schematic diagram of the protection status of the power distribution circuit breaker which is easy to install provided by the utility model; Figure 3 A schematic diagram of the connection relationship between the mounting plate and the circuit breaker body provided by the utility model; Figure 4 A schematic diagram of the circuit breaker body, mounting block and connector structure provided by the utility model; Figure 5 for Figure 4 Schematic diagram of structural decomposition; Figure 6 A schematic diagram of the structural disassembly of the connecting piece provided by the utility model; Figure 7 A schematic diagram of the partial structure of the connector provided by the utility model; Figure 8 This is a schematic diagram of the cross-sectional structure of the limiting member provided by the utility model.

[0026] In the specific implementation process, Figure 1-Figure 8 As shown, a power distribution circuit breaker that is easy to install includes a mounting plate 1 and a plurality of circuit breaker bodies 2 arranged on the mounting plate 1, a plurality of circuit breaker bodies 2 are each provided with a mounting block 3, a plurality of mounting blocks 3 are each provided with a card slot 4 matching the mounting plate 1 on both upper and lower sides, a connecting piece for fixing the mounting block 3 and the mounting plate 1 on both upper and lower sides are provided on both upper and lower sides of the mounting block 3, one end of the connecting piece is adapted to a plurality of mounting holes 5 arranged oppositely on the upper and lower sides of the mounting plate 1, a plurality of bolt holes 6 for fixing the mounting block 3 and the wall are each provided on both upper and lower sides of the mounting plate 1, a protective shell 7 is hingedly connected above the mounting plate 1, a magnetic strip 9 is arranged on the upper end of the protective shell 7, a magnet 8 is arranged on the upper end of the mounting plate 1, the magnet 8 and the magnetic strip 9 are magnetically attracted to each other, two L-shaped card plates 10 are relatively arranged on one side of the mounting plate 1, and an I-shaped card slot 4 matching one end of the two L-shaped card blocks 18 is provided on both upper and lower sides of the mounting plate;

[0027] The connecting member includes a mounting frame 11, a first movable rod 12, a second movable rod 13, a first spring 14, a second spring 15 and a limit buckle 16. The side wall of the mounting frame 11 is fixedly connected to the through grooves opened on the upper and lower sides of the mounting block 3. One end of the first movable rod 12 is movably arranged in the mounting cavity opened on the mounting frame 11. One end of the first movable rod 12 is fixedly connected to the side wall of the mounting frame 11 through the first spring 14. The second movable rod 13 movably penetrates the first movable rod 12 and one side of the second movable rod 13 moves in the mounting cavity of the mounting block 3. The limit buckle 16 is fixedly sleeved on the outer side wall of the second movable rod 13. The second spring 15 is sleeved on the outer side of the second movable rod 13, and the two ends of the second spring 15 are respectively connected to the limit buckle 16 and the first movable rod 1 2 is fixedly connected, a limiting member for limiting the limiting buckle 16 is provided on one side of the inner wall of the installation cavity of the installation frame 11, one end of the limiting member is connected to the first movable rod 12, the limiting member includes a fixed block 17, a clamping block 18, a third spring 19 and a connecting rod 20, one end of the fixed block 17 is fixedly connected to one side of the inner wall of the installation cavity of the installation frame 11, the clamping block 18 is movably arranged on the inner wall of the movable groove of the fixed block 17, one end of the clamping block 18 is fixedly connected to the inner side wall of the movable groove through the third spring 19, one end of the connecting rod 20 is movably arranged in a trapezoidal slide groove 21 provided on the clamping block 18 and moves therein, the other end of the connecting rod 20 is hinged to one side of the fixed plate provided on the first movable rod 12, and the end of the second movable rod 13 is hinged to the installation plate 1 The mounting hole 5 is adapted to the mounting hole 5. When installing the circuit breaker body 2, the card slot 4 on the mounting block 3 is inserted into the card plate 10 on the mounting plate 1 along one side of the mounting plate 1, and the first movable rods 12 on the upper and lower sides of the mounting plate 1 are pressed inward. At this time, the connecting rod 20 drives the card block 18 to move along the side wall of the trapezoidal slide groove 21 under the action of the first movable rod 12. At this time, the card block 18 moves to the side away from the limit buckle 16 and applies pressure to the spring. One end of the card block 18 does not limit the limit buckle 16. At this time, the first movable rod 12 is released, and the first movable rod 12 and the limit buckle 16 are respectively subjected to the elastic force applied by the first spring 14 and the second spring 15, so that the first movable rod 12 is reset, and the limit buckle 16 on the second movable rod 13 is not constrained by the card block 18 and moves to the side away from the limit buckle 16. The second movable rod 13 pops out and one end of the second movable rod 13 is inserted into the mounting hole 5 on the mounting plate 1 to limit the mounting plate 1 and the circuit breaker body 2. When the circuit breaker body 2 is disassembled, the second movable rod 13 is pulled outward, and the second movable rod 13 drives the limiting buckle 16 to move in the pulling direction and slide out of the mounting hole 5. One side of the limiting buckle 16 squeezes one side of the block 18 so that the block 18 applies pressure to the third spring 19 and contracts. When the limiting buckle 16 passes through the block 18, the buckle is reset under the thrust of the third spring 19. At this time, the pulling force applied to the second movable rod 13 is cancelled, and the limiting buckle 16 rebounds under the action of the second spring 15 and resists against one side of the block 18. The block 18 limits the limiting buckle 16 and the second movable rod 13.At this time, the second movable rod 13 does not limit the mounting plate 1, and the circuit breaker body 2 can be pulled out from between the clamping plates 10 of the mounting plate 1;

[0028] A plurality of positioning lines 22 are provided on the mounting plate 1, and the plurality of positioning lines 22 are all provided above the central axis of the mounting hole 5. An indicator bar 23 is provided above the plurality of mounting blocks 3, and an extension line of the indicator bar 23 is located directly above the central axis of the second movable rod 13, so that the second movable rod 13 can be aligned with the movable hole on the mounting plate 1 when the circuit breaker body 2 is installed;

[0029] The circuit breaker body 1 mentioned above is a NXB-125 circuit breaker, which has the ability to automatically distinguish between slowly changing leakage and suddenly changing leakage for protection, thereby ensuring the safety of the circuit.

[0030] The working principle provided by the utility model is as follows: when installing the circuit breaker body 2, the card slot 4 on the mounting block 3 is inserted into the card plate 10 on the mounting plate 1 along one side of the mounting plate 1, and the first movable rods 12 on the upper and lower sides of the mounting plate 1 are pressed inward. At this time, the connecting rod 20 drives the card block 18 to move along the side wall of the trapezoidal slide groove 21 under the action of the first movable rod 12. At this time, the card block 18 moves to the side away from the limit buckle 16 and applies pressure to the spring. One end of the card block 18 does not limit the limit buckle 16. At this time, the first movable rod 12 is released, and the first movable rod 12 and the limit buckle 16 are respectively affected by the first movable rod 12. The elastic force applied by the first spring 14 and the second spring 15 resets the first movable rod 12, and the limiting buckle 16 on the second movable rod 13 is not constrained by the block 18 and pops outward, and one end of the second movable rod 13 is inserted into the mounting hole 5 on the mounting plate 1, thereby limiting the mounting plate 1 and the circuit breaker body 2. When the circuit breaker body 2 is used or installed and replaced, the magnetic strip 9 provided on the protective shell 7 can be adsorbed by the magnetic block on the mounting plate 1 to keep it in an open state. After use or installation and replacement is completed, the protective shell 7 is covered to prevent the circuit breaker body 2 from being exposed to the external environment.

[0031] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0032] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An easy-to-install power distribution circuit breaker, characterized in that: include: A mounting plate (1) and a plurality of circuit breaker bodies (2) arranged on the mounting plate (1), each of the plurality of circuit breaker bodies (2) being provided with a mounting block (3), each of the plurality of mounting blocks (3) being provided with a slot (4) matching the mounting plate (1) on both upper and lower sides, each of the plurality of mounting blocks (3) being provided with a connecting piece for fixing the mounting block (3) and the mounting plate (1) on both upper and lower sides, one end of the connecting piece being adapted to a plurality of mounting holes (5) arranged oppositely on both upper and lower sides of the mounting plate (1), each of the plurality of bolt holes (6) for fixing the mounting block (3) and the mounting plate (1) on both upper and lower sides being provided, a protective shell (7) being hingedly connected above the mounting plate (1), a magnetic strip (9) being provided at the upper end of the protective shell (7), a magnet (8) being provided at the upper end of the mounting plate (1), and the magnet (8) and the magnetic strip (9) being magnetically attracted to each other.

2. The easy-to-install power distribution circuit breaker according to claim 1, characterized in that: Two L-shaped card plates (10) are arranged opposite to each other on one side of the installation plate (1), and I-shaped card slots (4) matching one end of the two L-shaped card blocks (18) are provided on both upper and lower sides of the installation plate.

3. The easy-to-install power distribution circuit breaker according to claim 2, characterized in that: The connecting member comprises a mounting frame (11), a first movable rod (12), a second movable rod (13), a first spring (14), a second spring (15) and a limit buckle (16); the side wall of the mounting frame (11) is fixedly connected to through grooves provided at upper and lower sides of the mounting block (3); one end of the first movable rod (12) is movably arranged in a mounting cavity provided on the mounting frame (11); one end of the first movable rod (12) is fixedly connected to the side wall of the mounting frame (11) via the first spring (14); the second movable rod (13) movably penetrates the first movable rod (13) and is fixedly connected to the side wall of the mounting frame (11); The movable rod (12) and one side of the second movable rod (13) move in the installation cavity of the installation block (3); the limit buckle (16) is fixedly sleeved on the outer side wall of the second movable rod (13); the second spring (15) is sleeved on the outside of the second movable rod (13); and the two ends of the second spring (15) are respectively fixedly connected to the limit buckle (16) and one end of the first movable rod (12); a limit member for limiting the limit buckle (16) is provided on one side of the inner wall of the installation cavity of the installation frame (11); and one end of the limit member is connected to the first movable rod (12).

4. The easy-to-install power distribution circuit breaker according to claim 3, characterized in that: The limiting component comprises a fixed block (17), a clamping block (18), a third spring (19) and a connecting rod (20); one end of the fixed block (17) is fixedly connected to one side of the inner wall of the mounting cavity of the mounting frame (11); the clamping block (18) is movably arranged on the inner wall of the movable groove of the fixed block (17); one end of the clamping block (18) is fixedly connected to the inner wall of the movable groove through the third spring (19); one end of the connecting rod (20) is movably arranged in a trapezoidal sliding groove (21) provided on the clamping block (18) and moves therein; the other end of the connecting rod (20) is hinged to one side of a fixed plate provided on the first movable rod (12).

5. The easy-to-install power distribution circuit breaker according to claim 4, characterized in that: The end of the second movable rod (13) is adapted to the mounting hole (5) provided on the mounting plate (1).

6. The easy-to-install power distribution circuit breaker according to claim 5, characterized in that: A plurality of positioning lines (22) are provided on the mounting plate (1), and the plurality of positioning lines (22) are all arranged above the central axis of the mounting hole (5).

7. The easy-to-install power distribution circuit breaker according to claim 6, characterized in that: An indicator bar (23) is provided above the plurality of mounting blocks (3), and an extension line of the indicator bar (23) is located directly above the central axis of the second movable rod (13).

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