Locking device

Abstract

To obtain a locking device of a novel configuration that is an obstacle on moving an electrical device to a connection position.SOLUTION: The locking device includes a movable part. The movable part has a hooking part and a locking member. The movable part moves in a first direction in unison with an electrical device by being pushed in the first direction by a first electrical device side hook portion of the electrical device whose hooking part moves from a connection position to a disconnecting position. The locking member restricts a movement of the electrical device in a second direction by being hooked to a second electrical device side hook portion.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] FIELD OF THE INVENTION An embodiment of the present invention relates to a locking device. [Background technology]

[0002] A conventional power receiving and distribution device includes a housing, a plurality of conductors housed in the housing, and a circuit breaker (electronic device) housed in the housing and capable of being pulled out from the housing. The housing is movable between a connection position within the housing where it is connected to the conductors and a disconnection position where it is separated from the conductors. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-19650 Summary of the Invention [Problem to be solved by the invention]

[0004] During maintenance and inspection of this type of power distribution equipment, workers pull out the circuit breaker from the storage position to the disconnecting position, separate the circuit breaker from the conductor, and then ground the conductor. Then, when the maintenance and inspection work is completed, the worker releases the grounding of the conductor and returns the circuit breaker to the storage position to connect the conductor. In this case, since the circuit breaker connects to the conductor when it is moved toward the connecting position, it is difficult for the worker to notice if they have forgotten to release the grounding of the conductor. If there is an obstacle to moving the circuit breaker to the connecting position, it is easy to notice if the worker has forgotten to release the grounding of the conductor. Therefore, it would be beneficial to have a locking device with a novel configuration that prevents electrical equipment from being moved to the connecting position. [Means for solving the problem]

[0005] A locking device according to an embodiment is a locking device provided in a power receiving and distribution device. The power receiving and distribution device includes a housing, a conductor, and an electric device. The conductor is housed within the housing. The electric device has a first electric device-side hooking portion and a second electric device-side hooking portion, and is movable in a first direction from a connection position within the housing where the conductor is connected to the electric device toward a disconnection position where the conductor is separated from the electric device, and in a second direction from the disconnection position toward the connection position. The locking device includes a movable portion having a hooking portion and a locking member and movable in the first direction and the second direction. When the hooking portion is pressed in the first direction by the first electric device-side hooking portion of the electric device moving from the connection position toward the disconnection position, the movable portion moves in the first direction together with the electric device. The locking member is positioned on the second direction side of the second electrical equipment side hook portion of the electrical equipment in the disconnected position, and restricts movement of the electrical equipment in the second direction by hooking onto the second electrical equipment side hook portion. [Brief explanation of the drawings]

[0006] [Figure 1] FIG. 1 is a cross-sectional view schematically showing a power receiving and distribution device according to an embodiment. [Figure 2] FIG. 2 is a perspective view showing a portion including a circuit breaker and a locking device in the power distribution device of the embodiment, showing a state in which the circuit breaker is moving from a connected position to a disconnected position. [Figure 3] FIG. 3 is a perspective view showing a portion including a circuit breaker and a locking device in the power distribution device of the embodiment, with the circuit breaker positioned in a disconnecting position. [Figure 4] FIG. 4 is a perspective view showing a portion including a circuit breaker and a locking device in the power distribution device of the embodiment, showing a state in which the circuit breaker is moving from a disconnected position to a connected position. [Figure 5] FIG. 5 is a cross-sectional view showing the locking device of the embodiment. [Figure 6] FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. [Figure 7] FIG. 7 is a plan view showing a support portion and a base portion in the locking device of the embodiment. [Figure 8] FIG. 8 is a plan view showing a movable portion of the locking device according to the embodiment. [Figure 9] FIG. 9 is a plan view showing a state in which the mechanism portion of the locking device according to the embodiment is located at the housed position. DETAILED DESCRIPTION OF THE INVENTION

[0007] Hereinafter, embodiments will be described with reference to FIGS. 1 to 4. In this specification, components according to embodiments and descriptions of the components may be expressed in multiple terms. Components and descriptions that are expressed in multiple terms may be expressed in other terms that are not stated. Furthermore, components and descriptions that are not expressed in multiple terms may be expressed in other terms that are not stated.

[0008] 1 is a cross-sectional view schematically illustrating a power receiving and distribution device 10 according to an embodiment. The power receiving and distribution device 10 of this embodiment is, for example, a switchgear. However, the power receiving and distribution device 10 is not limited to this example. The power receiving and distribution device 10 is also called a switchboard.

[0009] As shown in FIG. 1 and other figures, an X-axis, a Y-axis, and a Z-axis are defined in this specification. The X-axis, the Y-axis, and the Z-axis are perpendicular to one another. The X-axis extends along the depth of the power receiving and distribution device 10. The Y-axis extends along the width of the power receiving and distribution device 10. The Z-axis extends along the height of the power receiving and distribution device 10.

[0010] 1, the power receiving and distribution device 10 includes a housing 11, a housing device 12, and a locking device 14. The housing 11 may also be referred to as a housing. The housing 11 includes a housing main body 21 and a front door 22.

[0011] The container body 21 is formed in a generally box-like shape that is open in the forward direction D1 along the X-axis. In other words, an open end 21a is provided at the end of the container body 21 in the forward direction. The open end 21a is a portion where the interior of the concave container body 21 opens. The container body 21 may have other shapes. The forward direction D1 is an example of a first direction.

[0012] The front door 22 is attached to the housing body 21 by, for example, a hinge so as to be able to open and close the interior of the housing body 21. The front door 22 closes the open end 21a of the housing body 21 and is located at the front end of the housing body 11. In other words, the front door 22 is provided on the housing body 11.

[0013] The housing body 21 has multiple walls, such as a rear wall 21b, a lower wall 21c, and an upper wall (not shown). The rear wall 21b is located at the end of the housing body 21 in a rear direction D2, which is opposite to the forward direction D1. The lower wall 21c is located at the lower end of the housing body 21 on the vertically lower side. The upper wall is located at the end of the housing body 21 on the vertically upper side. The front door 22 is spaced from the rear wall 21b in the forward direction D1. The rear direction D2 is an example of a second direction.

[0014] When the power receiving and distribution device 10 is installed, for example, the lower wall 21c is supported in contact with the ground. Note that, for example, rubber feet or the like attached to the lower wall 21c may be in contact with the ground, and the lower wall 21c may be spaced apart from the ground. In this way, the lower wall 21c faces the ground. Furthermore, the upper wall faces, for example, the ceiling of the building. The power receiving and distribution device 10 is installed so that there is a space between the upper wall and the ceiling of the building.

[0015] Furthermore, the front door 22 faces a space (e.g., a passageway) through which workers and the like can pass. On the other hand, the rear wall 21b faces the wall of the building. The power receiving and distribution device 10 is installed so that there is a gap between the rear wall 21b and the wall of the building. Note that the installation manner of the power receiving and distribution device 10 is not limited to the example described here.

[0016] An electric system 131 is provided inside the housing 11. In this embodiment, one electric system 131 is provided in the housing 11, but more electric systems may be provided in the housing 11.

[0017] A partition wall 21d is provided in the housing body 11. The partition wall 21d is provided inside the housing body main body 21.

[0018] The electrical system 131 includes a circuit breaker room 141, a cable room 142, and a busbar room 143. The electrical system 131 may have other configurations. The circuit breaker room 141, the cable room 142, and the busbar room 143 are separated by a partition wall 21d. Note that the circuit breaker room 141, the cable room 142, and the busbar room 143 may be connected to each other by, for example, holes or gaps.

[0019] The circuit breaker room 141 is provided at a position closer to the front door 22 than the cable room 142 and the bus bar room 143. In other words, the circuit breaker room 141 is provided on the front side of the housing 11.

[0020] The cable room 142 and the bus room 143 are provided at positions closer to the rear wall 21b than the circuit breaker room 141. In other words, the cable room 142 and the bus room 143 are provided on the rear side of the housing 11.

[0021] Partition wall 21d has a first partition wall portion 21da and a second partition wall portion 21db. First partition wall portion 21da is provided in approximately the center of housing 11 in the direction along the X-axis, and separates circuit breaker chamber 141 from cable chamber 142 and busbar chamber 143. In other words, first partition wall portion 21da divides the interior of housing 11 into a front side and a rear side.

[0022] The second partition wall portion 21db is formed in an L-shape and is connected to the middle portion and the upper wall of the first partition wall portion 21da. The second partition wall portion 21db separates the cable chamber 142 and the busbar chamber 143.

[0023] The housed equipment 12 includes a circuit breaker 61, an upper disconnecting section 62, a lower disconnecting section 63, a main circuit conductor 64, and a bus bar 65. The housed equipment 12 may include other equipment. The circuit breaker 61 is an example of electrical equipment.

[0024] The circuit breaker 61 is, for example, a vacuum circuit breaker (VCB) and is housed in the circuit breaker chamber 141. The upper disconnecting unit 62 is fixed to the first partition wall portion 21da and connected to an upper conductor 61a of the circuit breaker 61. The lower disconnecting unit 63 is fixed to the first partition wall portion 21da and connected to a lower conductor 61b of the circuit breaker 61.

[0025] The main circuit conductor 64 is accommodated in the cable room 142 and connected to the lower disconnecting unit 63. The main circuit conductor 64 is formed, for example, in an L-shape, and a power cable is connected to it. The main circuit conductor 64 is provided, for example, for each of a plurality of phases (for example, three phases). For example, three main circuit conductors 64 are provided. That is, a plurality of main circuit conductors 64 are provided. Note that only one of the plurality of main circuit conductors 64 is shown in FIG. 1. The bus bar 65 is accommodated in the bus bar room 143 and connected to the upper disconnecting unit 62. The bus bar 65 is connected, for example, to an adjacent panel. The main circuit conductor 64 is an example of a conductor.

[0026] The cable room 142 is also provided with a ground bus bar 66. The ground bus bar 66 is electrically connected to the ground. The ground bus bar 66 is also referred to as a ground member.

[0027] The circuit breaker chamber 141 is also provided with a hood member 13. The hood member 13 is included in the housing 11. The hood member 13 has walls 13a and 13b. The wall 13a is a strip-shaped plate that extends in a direction perpendicular to the vertical direction and whose longitudinal direction is along the Y direction. The wall 13a extends vertically upward from the front end of the wall 13a. A locking device 14 is attached to the hood member 13.

[0028] Next, the circuit breaker 61 and the locking device 14 will be described in detail. Fig. 2 is a perspective view showing a portion including the circuit breaker 61 and the locking device 14 in the power receiving and distribution device 10 of the embodiment, and is a diagram showing a state in which the circuit breaker 61 is in the middle of moving from the connected position toward the disconnected position. Fig. 3 is a perspective view showing a portion including the circuit breaker 61 and the locking device 14 in the power receiving and distribution device 10 of the embodiment, and is a diagram showing a state in which the circuit breaker 61 is in the disconnected position. Fig. 4 is a perspective view showing a portion including the circuit breaker 61 and the locking device 14 in the power receiving and distribution device 10 of the embodiment, and is a diagram showing a state in which the circuit breaker 61 is in the middle of moving from the disconnected position toward the connected position.

[0029] As shown in Figures 2 to 4, the circuit breaker 61 has a housing 71, a plurality of wheels 72, and a hook member 73. The housing 71 is formed in a rectangular parallelepiped shape. An interrupting circuit electrically connected to the main circuit conductor 64 and the bus bar 65 is housed within the housing 71. The interrupting circuit is capable of interrupting the electrical connection between the main circuit conductor 64 and the bus bar 65.

[0030] The wheels 72 are attached to the lower end of the housing 71. The circuit breaker 61 can travel by rotating the wheels 72. The circuit breaker 61 can move in a forward direction D1 that intersects with the vertical direction and is a direction from a connection position (FIG. 1) in the housing 11 where the circuit breaker 61 is connected to the main circuit conductor 64 to a disconnection position (FIG. 3) where the circuit breaker 61 is separated from the main circuit conductor 64. The circuit breaker 61 can also move in a backward direction D2 from the disconnection position (FIG. 3) to the connection position (FIG. 1). The disconnection position is, for example, a position outside the housing 11.

[0031] The hooking member 73 is fixed to the front end of the top surface of the housing 71. The hooking member 73 has a base wall 73a and a standing wall 73b, and is formed in an L shape. The base wall 73a protrudes in the forward direction D1 from the housing 71. The standing wall 73b extends vertically upward from the front end of the base wall 73a. The standing wall 73b constitutes a part of the locking device 14. The standing wall 73b is an example of a first electrical appliance side hooking portion and a second electrical appliance side hooking portion. In other words, the standing wall 73b serves as both the first electrical appliance side hooking portion and the second electrical appliance side hooking portion.

[0032] Fig. 5 is a cross-sectional view showing the locking device 14 of the embodiment. Fig. 6 is a cross-sectional view taken along line VI-VI of Fig. 5. Fig. 7 is a plan view showing the support portion 30 and the base portion 32 of the locking device 14 of the embodiment. Fig. 8 is a plan view showing the movable portion 33 of the locking device 14 of the embodiment. Fig. 9 is a plan view showing the mechanism portion 31 of the locking device 14 of the embodiment in a state where it is positioned at the storage position.

[0033] 5 to 8, the locking device 14 includes a support part 30, a mechanism part 31, and a fixed part 34. The locking device 14 includes a base part 32, a movable part 33, and a fixed part 34.

[0034] 5, the support part 30 has a plurality of walls such as a front wall 30a, a rear wall 30b, and an upper wall 30c. The support part 30 and the mechanism part 31 constitute a locking device main body 50.

[0035] The fixing portion 34 detachably attaches the locking device main body 50 to the housing 11. The fixing portion 34 is, for example, a vice, and includes a base portion 34a, a pair of clamping portions 34bc and 34c supported by the base portion 34a, and a screw 34d. The pair of clamping portions 34b and 34c are spaced apart in the front-to-rear direction, and the distance between them is variable. When clamping portion 34b is pressed by the screw 34d, the distance between the pair of clamping portions 34b and 34c narrows. The front wall 30a of the support portion 30 and the wall 13b of the eaves member 13 are positioned between the pair of clamping portions 34b and 34c, and the pair of clamping portions 34b and 34c sandwich the front wall 30a and the wall 13b.

[0036] The mechanism section 31 has a base section 32 and a movable section 33 .

[0037] The base portion 32 is supported by the support portion 30. That is, the base portion 32 is supported by the housing 11 via the support portion 30. The base portion 32 extends in the forward direction D1 from the support portion 30. As shown in FIGS. 5 to 7, the base portion 32 is configured from a strip-shaped plate whose thickness direction is along the vertical direction. As shown in FIG. 7, the base portion 32 is provided with a groove 32a and a through hole 32b. The groove 32a is provided on the upper surface of the base portion 32 and extends in the front-rear direction. The through hole 32b is connected to the front end of the groove 32a. The through hole 32b passes through the base portion 32 in the vertical direction. The through hole 32b is an example of a first through hole.

[0038] As shown in FIGS. 5, 6, and 8, the movable portion 33 has a facing portion 41, a hooking member 43, a locking member support portion 44, and a locking member 45.

[0039] The facing portion 41 is configured of a strip-shaped plate whose thickness direction is along the vertical direction. The facing portion 41 is located vertically above the base portion 32 and faces the base portion 32. A through hole 41a is provided in the facing portion 41. The through hole 41a passes through the facing portion 41 in the vertical direction.

[0040] The facing portion 41 is connected to the base portion 32 by the connecting portion 42 so as to be movable (slidable) in the front-rear direction. As shown in FIG. 6 , the connecting portion 42 has a pair of left and right connecting members 47. The connecting members 47 are provided with two grooves 47a and 47b. The grooves 47a and 47b extend in the front-rear direction. The groove 47b is located below the groove 47a. The facing portion 41 is fitted into the groove 47a so as to be slidable relative to the connecting portion 42. The base portion 32 is fixed to the groove 47b. In other words, the connecting portion 42 is fixed to the base portion 32. Note that the facing portion 41 may be fixed to the connecting portion 42, and the connecting portion 42 may be slidable relative to the base portion 32.

[0041] As shown in FIGS. 3 and 8 , the hooking member 43 is attached to the front end of the facing portion 41 via a fixing member 46. The fixing member 46 is fixed to the facing portion 41 by a fixing device 48 such as a screw. The hooking member 43 has a base portion 43a and a hooking portion 43b. The base portion 43a is fixed to the fixing member 46 by the fixing device 48. The hooking portion 43b extends vertically downward from the base portion 43a. That is, the hooking portion 43b is connected to the facing portion 41 via the base portion 43a and the fixing member 46. The hooking portion 43b is located on the front direction D1 side with respect to the standing wall 73b.

[0042] 6 and 8, the locking member support portion 44 is formed in a cylindrical shape that extends in the vertical direction. The locking member support portion 44 is fixed to the upper surface of the facing portion 41.

[0043] As shown in Fig. 5, the locking member 45 has a head 45a and a shaft 45b extending vertically downward from the head. The diameter of the head 45a is larger than the diameter of the shaft 45b. As shown in Fig. 6, the shaft 45b is inserted into the cylindrical interior of the locking member support part 44 and the through-hole 41a of the opposing part 41 so as to be vertically movable. A lower end 45c of the shaft 45b on the vertically downward side is inserted into the groove 32a of the base part 32.

[0044] The movable portion 33 is movable relative to the base portion 32 between a first position (FIGS. 2, 5, and 6) and a second position (FIGS. 3 and 4). The first position is a position where the through-hole 41a is positioned in the rear direction D2 relative to the through-hole 32b, and a lower end portion 45c on the vertically lower side of the locking member 45 is supported by the base portion 32. The second position is a position where the through-hole 41a is aligned vertically with the through-hole 32b, and the locking member 45 drops vertically downward from the through-hole 32b.

[0045] The mechanism unit 31 is supported by the support unit 30 so as to be movable between an operating position (FIGS. 3 to 5) and a storage position (FIG. 9). The operating position is a position where the base unit 32 extends in the forward direction D1. The storage position is a position where the base unit 32 extends in a rightward direction D3 (third direction) intersecting the forward direction D1, and the mechanism unit 31 is stored in the storage body 11. Specifically, the mechanism unit 31 is supported by the support unit 30 so as to be rotatable around a support shaft 30f.

[0046] In the locking device 14 configured as described above, the hooking portion 43b is pushed in the forward direction D1 by the standing wall 73b of the circuit breaker 61 moving from the connected position toward the disconnected position, causing the movable portion 33 to move in the forward direction D1 together with the circuit breaker 61 (FIGS. 2 and 3). Also, the locking member 45 in the second position (FIG. 4) is located on the rearward direction D2 side of the standing wall 73b of the circuit breaker 61 in the disconnected position, and restricts movement of the circuit breaker 61 in the rearward direction D2 by being hooked onto the standing wall 73b.

[0047] Next, the maintenance and inspection work of the power receiving and distribution device 10 configured as described above will be described. During the maintenance and inspection work, the worker first operates the interlock lever (not shown) to enable the withdrawal of the circuit breaker 61. Next, the worker withdraws the circuit breaker 61 from the connection position ( FIG. 1 ) to the disconnection position ( FIG. 3 ). At this time, the hook portion 43b of the locking device 14 is pushed forward in the direction D1 by the vertical wall 73b of the circuit breaker 61, which is moving from the connection position to the disconnection position, causing the movable portion 33 to move forward in the direction D1 together with the circuit breaker 61 ( FIGS. 2 and 3 ). In other words, the movable portion 33 is withdrawn in the direction D1. Furthermore, when the circuit breaker 61 is positioned in the disconnection position, the through hole 41a of the movable portion 33 is aligned vertically with the through hole 32b of the valve 2, and the locking member 45 falls through the through hole 32b. The locking member 45 hits the top surface of the housing 71 of the circuit breaker 61, stopping its fall. The fall of the locking member 45 may be stopped by the head 45a of the locking member 45 hitting the upper surface of the locking member support portion 44.

[0048] In the above state, the worker opens the rear door (not shown) of the enclosure 11 and electrically connects the grounding bus bar 66 and the multiple main circuit conductors 64 via the conductive safety grounding member 67. In this state, the worker performs various maintenance and inspection tasks. After completing the various maintenance and inspection tasks, the worker removes the safety grounding member 67 to disconnect the grounding bus bar 66 from the multiple main circuit conductors 64. Next, the worker returns the circuit breaker 61 from the disconnecting position to the connecting position, electrically connecting the circuit breaker 61 to the multiple main circuit conductors 64 and the busbar 65. At this time, the locking member 45 engages with the vertical wall 73b of the circuit breaker 61, restricting the movement of the circuit breaker 61 in the rear direction D2. The worker pulls up the locking member 45 to release the engagement between the locking member 45 and the vertical wall 73b, and then moves the circuit breaker 61 to the connecting position.

[0049] As described above, the locking device 14 of the embodiment is a locking device 14 provided in the power receiving and distribution device 10. The power receiving and distribution device 10 includes the housing 11, the main circuit conductor 64 (conductor), and the circuit breaker 61 (electrical equipment). The main circuit conductor 64 is housed in the housing 11. The circuit breaker 61 has a standing wall 73b (first electrical equipment side hook portion, second electrical equipment side hook portion) and is movable in a forward direction D1 (first direction) from a connected position (FIG. 1) in the housing 11 connected to the main circuit conductor 64 to a disconnected position (FIG. 3) away from the main circuit conductor 64, and in a rearward direction D2 (second direction) from the disconnected position to the connected position. The locking device 14 includes a hook portion 43b and a locking member 45 and includes a movable portion 33 that is movable in the forward direction D1 and the rearward direction D2. The hooking portion 43b is pushed in the forward direction D1 by the standing wall 73b of the circuit breaker 61 which is moving from the connected position toward the disconnected position, and the movable portion 33 moves in the forward direction D1 together with the circuit breaker 61. The locking member 45 is located on the rearward direction D2 side of the standing wall 73b of the circuit breaker 61 in the disconnected position, and restricts the movement of the circuit breaker 61 in the rearward direction D2 by being hooked onto the standing wall 73b.

[0050] With this configuration, the locking member 45 restricts movement of the circuit breaker 61 in the rear direction D2 by engaging with the upright wall 73b, and the locking member 45 does not hinder the movement of the circuit breaker 61 to the connected position. This makes it easier for a worker to notice if they have forgotten to perform a step during maintenance or inspection work. This also makes it easier for a worker to notice if they have forgotten to remove the protective grounding member 67, i.e., to release the grounding of the main circuit conductor 64. This makes it possible to prevent multiple main circuit conductors 64 from being electrically connected to each other and causing a short circuit between the multiple main circuit conductors 64.

[0051] The forward direction D1 intersects with the vertical direction. The locking device 14 includes a base portion 32. The base portion 32 is provided with a through-hole 32b (first through-hole) that penetrates in the vertical direction, is supported by the housing 11, and extends in the forward direction D1. The movable portion 33 has a facing portion 41, and is supported by the base portion 32 so as to be movable in the forward direction D1 and the rearward direction D2. The facing portion 41 is provided with a through-hole 41a (second through-hole) that penetrates in the vertical direction, and is located above the base portion 32 in the vertical direction and faces the base portion 32. The hook portion 43b is connected to the facing portion 41 and is located on the forward direction D1 side with respect to the standing wall 73b. The locking member 45 is inserted into the through-hole 41a and is movable in the vertical direction. The movable part 33 is movable relative to the base part 32 between a first position (Figures 2, 5, and 6) in which the through hole 41a is positioned in the rear direction D2 relative to the through hole 32b and the lower end part 45c of the locking member 45 on the vertically lower side is supported by the base part 32, and a second position (Figures 3 and 4) in which the through hole 41a is aligned vertically with the through hole 32b and the locking member 45 drops vertically downward from the through hole 32b.

[0052] According to this configuration, when the movable part 33 moves to the second position, the locking member 45 falls vertically downward from the through hole 32b due to the action of gravity, so that the worker does not need to operate the locking member 45 so that the locking member 45 moves to a position that restricts the movement of the circuit breaker 61 in the rear direction D2.

[0053] The locking device 14 also includes a mechanism portion 31 that has a base portion 32 and a movable portion 33 and is detachable from the housing 11 .

[0054] According to this configuration, the mechanism section 31 of the locking device 14 can be retrofitted to an existing power receiving and distribution device 10.

[0055] The locking device 14 also includes a mechanism 31 and a support part 30. The mechanism 31 has a base part 32 and a movable part 33. The support part 30 is housed in the housing body 11 and supports the mechanism 31 movably between an operating position (FIGS. 3 to 5) in which the base part 32 extends in the forward direction D1 and a housing position (FIG. 9) in which the base part 32 extends in a rightward direction D3 (third direction) intersecting the forward direction D1 and the mechanism 31 is housed in the housing body 11.

[0056] According to this configuration, the locking device 14 can be housed in the housing 11 when not in use.

[0057] The locking device 14 also includes a hook member 73 provided on the circuit breaker 61 and including a standing wall 73b.

[0058] According to this configuration, the configuration of the locking device 14 can be simplified compared to a configuration in which the first electrical appliance side hook portion and the second electrical appliance side hook portion are provided on separate members.

[0059] In the above embodiment, the circuit breaker 61 is used as an example of the electrical device, but the electrical device is not limited to this. For example, the electrical device may be a transformer or the like.

[0060] Furthermore, in the above embodiment, an example has been shown in which the locking member 45 moves in the vertical direction to restrict the movement of the circuit breaker 61, but this is not limiting. For example, a configuration in which the locking member 45 moves in a direction intersecting the vertical direction to restrict the movement of the circuit breaker 61 may be used. The direction intersecting the vertical direction may be a direction perpendicular to the vertical direction (e.g., left-right direction) or a direction oblique to the vertical direction. In this case, for example, an operator may push the locking member 45 into a predetermined position so that the locking member 45 restricts the movement of the circuit breaker 61 in the rearward direction D2.

[0061] Although several embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be embodied in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included within the scope and spirit of the invention, and are also included in the scope of the invention and its equivalents as defined in the claims. [Explanation of symbols]

[0062] 10...power distribution device, 11...accommodating body, 14...locking device, 30...supporting portion, 31...mechanism portion, 32...base portion, 32b...through hole (first through hole), 33...movable portion, 41...opposing portion, 41a...through hole (second through hole), 43b...hooking portion, 45...locking member, 61...circuit breaker (electrical equipment), 64...main circuit conductor (conductor), 73...hooking member, 73b...standing wall (first electrical equipment side hooking portion, second electrical equipment side hooking portion), D1...forward direction (first direction), D2...rearward direction (second direction).

Claims

1. A locking device provided in a power distribution device, The power receiving and distribution device A container; a conductor housed within the housing; an electric device having a first electric device side hook portion and a second electric device side hook portion, the electric device being movable in a first direction from a connection position in the housing where the electric device is connected to the conductor toward a disconnection position where the electric device is separated from the conductor, and being movable in a second direction from the disconnection position toward the connection position; Equipped with the locking device includes a movable part having a hook part and a locking member and movable in the first direction and the second direction; the hook portion is pushed in the first direction by the first electric-apparatus-side hook portion of the electric apparatus moving from the connection position toward the disconnection position, whereby the movable portion moves in the first direction together with the electric apparatus, the locking member is positioned on the second direction side of the second electric-apparatus-side hooking portion of the electric apparatus in the disconnecting position, and restricts movement of the electric apparatus in the second direction by being hooked onto the second electric-apparatus-side hooking portion. Locking device.

2. the first direction intersects with the vertical direction, the locking device includes a base portion that is provided with a first through-hole that penetrates in the vertical direction, is supported by the housing, and extends in the first direction; the movable portion is provided with a second through-hole penetrating in the vertical direction, has an opposing portion located above the base portion in the vertical direction and opposing the base portion, and is supported by the base portion so as to be movable in the first direction and the second direction; the hook portion is connected to the opposing portion and is located on the first direction side with respect to the first electrical device side hook portion, the locking member is inserted into the second through-hole and is movable in the vertical direction; 2. The locking device according to claim 1, wherein the movable portion is movable relative to the base portion between a first position in which the second through hole is positioned in the second direction relative to the first through hole and a lower end portion of the locking member on the lower side in the vertical direction is supported by the base portion, and a second position in which the second through hole is aligned with the first through hole in the vertical direction and the locking member drops downward in the vertical direction from the first through hole.

3. The locking device according to claim 2 , further comprising a mechanism portion having the base portion and the movable portion and detachable from the housing.

4. a mechanism portion having the base portion and the movable portion; a support portion that is housed in the housing and supports the mechanism portion movably between an operating position in which the base portion extends in the first direction and a housing position in which the base portion extends in a third direction intersecting the first direction and the mechanism portion is housed in the housing; and 4. The locking device according to claim 2 or 3, comprising:

5. The locking device according to any one of claims 1 to 4, comprising a single hooking member provided on the electrical device, including the first electrical device side hooking portion and the second electrical device side hooking portion.

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