Reclosing unit of circuit breaker

Abstract

The utility model discloses a reclosing unit of a circuit breaker. The reclosing unit mainly solves the problem that an existing conventional reclosing unit is not provided with a locking mechanism and is inconvenient to use. The electric leakage accessory module mainly solves the problems that an existing electric leakage accessory module is unstable in power connection and prone to shaking. The circuit breaker is characterized by further comprising a tripping rod (4) which is driven by the gear transmission mechanism to be rotatably installed in the shell and is provided with a connecting part (41) used for being connected with a lock catch of the circuit breaker; the locking piece (5) is rotatably installed on the shell and comprises a locking plate (51) and a locking rod (52), when the locking piece (5) is located at the locking position, the locking plate is arranged outside the shell and fixed through the fixing piece, and the locking rod is arranged in the shell and used for being matched with the tripping rod in a blocking mode. According to the reclosing unit of the circuit breaker provided by the utility model, locking can be realized through the locking piece, closing is prevented, and convenience is provided for maintenance and the like.

Description

Technical Field

[0001] The utility model relates to the field of circuit breaker components, in particular to a reclosing unit of a circuit breaker. Background Art

[0002] The reclosing module is an important component of the fee-controlled circuit breaker. Most of them are equipped with a circuit board to control the transmission mechanism to drive the circuit breaker to close or open. Conventional reclosing units do not have a locking mechanism, which is inconvenient to use. Utility Model Content

[0003] In order to overcome the deficiencies of the background technology, the utility model provides a reclosing unit for a circuit breaker, which mainly solves the problem that the existing conventional reclosing unit has no locking mechanism and is inconvenient in use.

[0004] The technical solution of the utility model is:

[0005] A reclosing unit for a circuit breaker comprises a housing, a linkage rod for driving a circuit breaker handle is mounted on the housing, a power source is provided in the housing, and the power source drives the linkage rod to rotate through a gear transmission mechanism, and further comprises

[0006] A trip lever is rotatably mounted in the housing by a gear transmission mechanism and is provided with a connection portion for connecting with a latch of the circuit breaker;

[0007] The locking member is rotatably mounted on the housing and includes a locking plate and a locking rod. When in the locked position, the locking plate is arranged outside the housing and fixed by a fixing member, and the locking rod is arranged inside the housing for blocking and cooperating with the trip rod.

[0008] The locking plate is provided with a through hole, and the fixing member is a latch, which is inserted into the through hole to fix the locking plate.

[0009] The tripping rod includes a first rod and a second rod, the connecting portion is a groove provided on the second rod, and the first rod is matched with the locking rod.

[0010] The gear transmission mechanism includes a transmission tooth, and the transmission tooth is provided with a protrusion for driving the tripping rod to rotate.

[0011] A circuit board is further provided in the shell, a position switch is provided on the circuit board, and a toggle block arranged opposite to the position switch is provided on the transmission tooth.

[0012] The outer wall of the shell is provided with a rotatably connected connecting buckle, and the connecting buckle is provided with a hook, and the hook is used to connect with the slot on the circuit breaker shell.

[0013] The power source is a motor.

[0014] The locking member further includes a baffle plate for covering the opening groove on the housing after the locking member rotates.

[0015] The beneficial effects of the present utility model are as follows: The present utility model provides a reclosing unit for a circuit breaker, which can be locked by a locking member to prevent closing, providing convenience for maintenance and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the present utility model.

[0017] Figure 2 It is an internal three-dimensional schematic diagram of an embodiment of the present utility model.

[0018] Figure 3 It is a partial three-dimensional schematic diagram of an embodiment of the present utility model.

[0019] Figure 4 It is a partial three-dimensional schematic diagram of an embodiment of the present utility model.

[0020] Figure 5 It is a partial cross-sectional schematic diagram of an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The present utility model will be further described below with reference to the accompanying drawings: As shown in the figure, a reclosing unit for a circuit breaker includes a housing 1, a linkage rod 2 for driving the handle of the circuit breaker is installed on the housing, a power source 3 is provided inside the housing, the power source drives the linkage rod to rotate through a gear transmission mechanism, and further includes a tripping rod 4, which is rotatably installed inside the housing by the gear transmission mechanism and is provided with a connecting portion 41 for connecting with the latch of the circuit breaker; a locking member 5, which is rotatably installed with the housing and includes a locking plate 51 and a locking rod 52. When in the locked position, the locking plate is arranged outside the housing and fixed by a fixing member, and the locking rod is arranged inside the housing for blocking and cooperating with the tripping rod. The locking plate can be rotated manually. When locking is required, it is pushed to rotate to Figure 3 the position (on the contrary, when the locking plate rotates back to its original position, it is in the unlocked position). It will be connected to the tripping rod. In this way, even if the handle is rotated, the tripping rod cannot be rotated. The rotation of the tripping rod will be blocked. The clockwise direction is the rotation direction for closing of the tripping rod. The power source can be a motor, which drives the tripping rod to rotate through a gear mechanism. This part is the prior art. An installation groove 21 can be provided on the tripping rod for the insertion of the handle of the circuit breaker. A tripping pin is provided on the latch of the circuit breaker and extends into the housing opposite to the tripping rod.

[0022] In this embodiment, as shown in the figure, the locking plate is provided with a through hole 511, and the fixing member is a latch, which is inserted into the through hole to fix the locking plate. The latch is partially inserted into the through hole and partially blocked by the outer wall of the shell. It can be manually inserted to achieve placement and rotation. Figure 3 shown.

[0023] In this embodiment, as shown in the figure, the trip lever comprises a first lever 40 and a second lever 42. The connecting portion is a groove provided on the second lever, and the first lever cooperates with the locking lever. One end of the trip pin is disposed in the groove. When locked, the circuit breaker cannot be closed.

[0024] In this embodiment, as shown in the figure, the gear transmission mechanism includes a transmission tooth 6, and the transmission tooth is provided with a protrusion 61 for driving the trip rod to rotate. The protrusion on the transmission tooth can drive the protrusion on the trip rod and then drive the trip rod to achieve tripping.

[0025] In this embodiment, as shown in the figure, a circuit board 7 is further provided within the housing, on which a position switch 71 is mounted. A toggle block 62 is provided on the transmission tooth, positioned opposite the position switch. Multiple position switches may be provided, each configured to provide the circuit board with a signal indicating the position of the switch is closed or open, depending on the position of the switch. These switches may be paddle switches or micro switches.

[0026] In this embodiment, as shown in the figure, the outer wall of the housing is provided with a rotatable connecting buckle 8, and the connecting buckle is provided with a hook 81, which is used to connect with the slot on the circuit breaker housing, playing the role of auxiliary installation, facilitating the installation of the reclosing device.

[0027] In this embodiment, as shown in the figure, the power source is a motor.

[0028] In this embodiment, as shown in the figure, the locking member further includes a baffle 53 for covering the opening slot on the housing after the locking member rotates. When the locking member rotates, a conventional opening slot will appear, which can be blocked by the baffle to prevent debris from entering.

[0029] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] Furthermore, the terms "first" and "second" are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.

[0031] The embodiments described with reference to the accompanying drawings are exemplary and are intended to explain the present utility model and should not be construed as limiting the present utility model. The embodiments should not be regarded as limiting the present utility model, but any improvements made based on the spirit of the present utility model should be within the protection scope of the present utility model.

Claims

1. A reclosing unit of a circuit breaker, comprising a housing (1), on which a linkage rod (2) for driving the handle of the circuit breaker is installed, a power source (3) is arranged inside the housing, and the power source drives the linkage rod to rotate through a gear transmission mechanism, and is characterized in that: Also includes A trip rod (4) is rotatably mounted in the housing and driven by a gear transmission mechanism, and is provided with a connecting portion (41) for connecting to a lock of the circuit breaker; A locking member (5) is rotatably mounted on the housing and comprises a locking plate (51) and a locking rod (52). When in a locked position, the locking plate is disposed outside the housing and fixed by a fixing member, and the locking rod is disposed inside the housing for blocking and cooperating with the tripping rod.

2. The reclosing unit of a circuit breaker according to claim 1, characterized in that: A through hole (511) is provided on the locking plate, and the fixing member is a latch, which is inserted into the through hole to fix the locking plate.

3. The reclosing unit of a circuit breaker according to claim 1, characterized in that: The tripping rod comprises a first rod (40) and a second rod (42), the connecting portion is a groove provided on the second rod, and the first rod cooperates with the locking rod.

4. The reclosing unit of a circuit breaker according to claim 1, characterized in that: The gear transmission mechanism comprises a transmission tooth (6), and the transmission tooth is provided with a protrusion (61) for driving the tripping rod to rotate.

5. The reclosing unit of a circuit breaker according to claim 4, characterized in that: A circuit board (7) is also provided in the housing, a position switch (71) is provided on the circuit board, and a toggle block (62) arranged opposite to the position switch is provided on the transmission tooth.

6. The reclosing unit of a circuit breaker according to claim 1, characterized in that: The outer wall of the housing is provided with a rotatably connected connection buckle (8), and the connection buckle is provided with a hook (81), and the hook is used to connect with a slot on the circuit breaker housing.

7. The reclosing unit of a circuit breaker according to claim 1, characterized in that: The power source is a motor.

8. A reclosing unit of a circuit breaker according to any one of claims 1-7, characterized in that: The locking member further comprises a baffle (53) for covering the opening slot on the housing after the locking member rotates.

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