Interlocking unit of switch cabinet and switch cabinet
By designing an interlocking unit consisting of locking components, swing components, and linkage components, the problem of large space occupation by the switch cabinet floor knife program lock mechanism was solved, achieving space optimization and stability of the locking function.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-03-13
AI Technical Summary
The existing switch cabinet floor switch program lock mechanism occupies a large amount of space inside the cabinet, which limits the optimization of the internal layout.
An interlocking unit comprising a locking element, a swing element, and a linkage component is designed. The locking process is achieved through the linkage of the locking tongue, the swing element, and the linkage component. The spatial layout is optimized by combining the use of guide elements and elastic elements.
The design of the switchgear interlocking unit is simple, effectively saving cabinet space and enabling stable execution of the locking procedure.
Smart Images
Figure CN223993493U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to an interlocking unit, and more particularly to an interlocking unit for a switch cabinet and a switch cabinet including the interlocking unit. Background Technology
[0002] In today's power equipment operation scenarios, switchgear is one of the core devices ensuring stable power transmission and safe control. The grounding switch's interlocking mechanism plays a crucial role in ensuring safe operation. However, existing grounding switch interlocking mechanisms generally occupy a large amount of space within the switchgear, which to some extent limits the optimization of the switchgear's internal layout. Utility Model Content
[0003] The purpose of this invention is to provide an interlocking unit for a switch cabinet that helps save internal space.
[0004] Another objective of this invention is to provide a switch cabinet whose interlocking unit is beneficial for saving internal space.
[0005] This utility model provides an interlocking unit for a switchgear, comprising a locking element, a swing element, and a linkage assembly. The locking element is installed in the switchgear cabinet. The locking element has a locking tongue. The locking tongue is movable between a first position and a second position along a first direction. The swing element is rotatably disposed in the cabinet. During the movement of the locking tongue from the first position to the second position, it can drive the swing element to rotate from the first swing position to the second swing position. The linkage assembly includes a first actuator and a linkage element. The first actuator is movably disposed in the cabinet and can translate along a plane perpendicular to the rotation axis of the swing element, thereby generating displacement along the first execution direction. One end of the linkage element is rotatably connected to the swing element, and its rotation axis is parallel to the rotation axis of the swing element; the other end is movably connected to the first actuator along the linkage direction. The linkage direction is perpendicular to the rotation axis of the swing element and forms an angle with the first execution direction. During the movement of the swing element from the first swing position to the second swing position, it can drive the first actuator to move from a first preparatory position to the first execution position via the linkage element. The first actuator located in the first execution position is used to execute a locking procedure.
[0006] The interlocking unit of this switchgear has a simple structure, which helps to save space.
[0007] In another illustrative embodiment of the interlocking unit of the switchgear, during the movement of the swing member from the first swing position to the second swing position, the angle between the common perpendicular of the rotation axis of the swing member and the rotation axis of the linkage member and the linkage direction does not exceed the range of 80 degrees to 140 degrees. This facilitates the transmission of force and makes the linkage smoother.
[0008] In another illustrative embodiment of the interlocking unit of the switchgear, the first actuator is in the shape of a bent rod and includes an actuating section and a linkage section. The actuating section extends along a first actuating direction. The actuating section is used to execute a locking procedure when the first actuator is in the first actuating position. The linkage section extends along the linkage direction. One end of the linkage member is slidably inserted into the free end of the linkage section along the linkage direction. This structure has good stability and is space-saving.
[0009] In another illustrative embodiment of the interlocking unit of the switchgear, the interlocking unit further includes a guide member. The guide member is movably disposed in the cabinet along a direction perpendicular to the first actuation direction and the rotation axis of the swing member, and has a through hole extending along the first actuation direction. The actuating section passes through the through hole. This structure is simple and helps save space.
[0010] In another illustrative embodiment of the interlocking unit of the switchgear, the grounding switch operating shaft is rotatably mounted on the cabinet about its axis to switch between a closed position and an open position. The interlocking unit also includes a first mating member. The first mating member is fixedly connected to the grounding switch operating shaft and has a stop portion protruding radially. When the grounding switch operating shaft is in one of the closed or open positions, the first actuator in the first actuation position can abut against the stop portion circumferentially along the grounding switch operating shaft to prevent the grounding switch operating shaft from rotating in the other of the closed or open positions. This facilitates locking the grounding switch operating shaft in the closed or open position.
[0011] In another illustrative embodiment of the interlocking unit of the switchgear, the interlocking unit further includes a second actuator. The second actuator is movably connected to the cabinet along a second execution direction, wherein the second execution direction is perpendicular to the rotation axis of the swing member. The second actuator has a connecting slide hole. The extending direction of the connecting slide hole is perpendicular to the second execution direction and the rotation axis of the swing member. The swing member has a drive pin. The drive pin is inserted into the connecting slide hole. During the movement of the swing member from a first swing position to a second swing position, the second actuator can be driven by the drive pin to move from a second preparatory position to a second execution position. The second actuator located in the second execution position is used to execute a locking procedure. This facilitates the execution of more locking procedures.
[0012] In another illustrative embodiment of the interlocking unit of the switchgear, the second actuator has a blocking part. During the movement of the second actuator from the second preparatory position to the second actuator position, it can be inserted between the grounding switch operating hole and the grounding switch operating shaft to prevent the grounding switch operating member from passing through the grounding switch operating hole and connecting to the grounding switch operating shaft. This structure is simple and helps save space.
[0013] In another illustrative embodiment of the interlocking unit of the switchgear, the trolley locking shaft of the switchgear is rotatably mounted on the cabinet about its axis to switch between a locked position and an unlocked position. The interlocking unit also includes a second mating member. The second mating member is fixedly connected to the trolley locking shaft. The second mating member is plate-shaped and perpendicular to the axis of the trolley locking shaft, and has a limiting side extending in a straight line. The second actuator has a limiting plate parallel to the axis of the trolley locking shaft. When the trolley locking shaft is in the locked position and the second actuator moves to the second actuator position, the limiting plate is parallel to and opposite to the limiting side. In this case, the limiting plate can prevent the trolley locking shaft from rotating into the unlocked position by abutting against the limiting side. This structure is simple, saves space, and can lock the trolley locking shaft in the locked position.
[0014] In another illustrative embodiment of the interlocking unit of the switchgear, the interlocking unit further includes an elastic element. The elastic element is used to apply an elastic force to drive the swing member from the second swing position to the first swing position. This facilitates the swing member automatically returning from the second swing position to the first swing position when the latch returns to the first position.
[0015] This utility model also provides a switch cabinet, which includes a cabinet body and the aforementioned interlocking unit, the interlocking unit being installed in the cabinet body. The interlocking unit of this switch cabinet has a simple structure, which helps to save space.
[0016] In another illustrative embodiment of the switchgear, the switchgear includes a grounding switch operating shaft. The grounding switch operating shaft is rotatably mounted on the cabinet about its axis to switch between a closed position and an open position. The switchgear is provided with two interlocking units. For one interlocking unit, a first actuator located in a first operating position can prevent the grounding switch operating shaft from rotating from the closed position to the open position. For the other interlocking unit, a first actuator located in a first operating position can prevent the grounding switch operating shaft from rotating from the open position to the closed position. This achieves position locking when the grounding switch operating shaft is in both the closed and open positions.
[0017] In another illustrative embodiment of the switchgear, the cabinet has a door frame. The door frame has an opening along the entry direction. An interlocking unit is located on the inside of the door frame along the entry direction, thereby saving space. Attached Figure Description
[0018] The following figures are for illustrative purposes only and do not limit the scope of the present invention.
[0019] Figure 1 This is a schematic diagram illustrating one embodiment of the interlocking unit of a switchgear.
[0020] Figure 2 for Figure 1 The diagram shows the changing states of the interlocking unit.
[0021] Figure 3 For along Figure 2 Sectional view of section III-III.
[0022] Figure 4 and Figure 5 For explanation Figure 1 The interlocking unit shown is used in the following scenarios.
[0023] Figure 6 and Figure 7 Another illustrative embodiment for illustrating the interlocking unit of the switchgear.
[0024] Figure 8 For along Figure 7 Sectional view of VIII-VIII.
[0025] Figure 9 and Figure 10 Another illustrative embodiment for illustrating the interlocking unit of the switchgear.
[0026] Figure 11 and Figure 12 For explanation Figure 6 and Figure 9 The interlocking unit shown is used in the following scenarios.
[0027] Figure 13 This is a schematic diagram illustrating one possible implementation of a switchgear.
[0028] Label Explanation
[0029] 100 interlocking units
[0030] 10 locks
[0031] 11 Locking Tongue
[0032] 12-arm pressure arm
[0033] 20 swing parts
[0034] 21 drive pin
[0035] 22 Pressure-bearing components
[0036] 30 linkage components
[0037] 31 First execution
[0038] 311 execution section
[0039] 312 linkage section
[0040] 33 linkage components
[0041] 40 guide components
[0042] 41 through hole
[0043] 50 First mating parts
[0044] 51 Stop section
[0045] 60 Second execution piece
[0046] 61 Connecting sliding hole
[0047] 62 shielding parts
[0048] 63 limit plate
[0049] 64 limiting sliding holes
[0050] 70 Second mating part
[0051] 71 Limiting side
[0052] 81 elastic component
[0053] 83 limit pin
[0054] 91 cabinet
[0055] 911 door frame
[0056] 912 opening
[0057] 92 Ground Tool Operating Shaft
[0058] 93 Handcart Locking Axle
[0059] 94 socket plate
[0060] 941 Grounding Tool Operating Hole
[0061] 95 used car
[0062] D1 First Direction
[0063] Z1 First Execution Direction
[0064] Z2 Second Execution Direction
[0065] L-linkage direction
[0066] E Entering Direction
[0067] X1 First Axis
[0068] X2 Second Axis
[0069] X3 Third Axis
[0070] X4 Fourth Axis
[0071] α angle Detailed Implementation
[0072] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, specific embodiments of the present utility model are now described with reference to the accompanying drawings. In the drawings, the same reference numerals indicate components with the same or similar structures but the same function.
[0073] In this document, “illustrative” means “serving as an example, illustration or description”, and any illustration or implementation described herein as “illustrative” should not be construed as a more preferred or advantageous technical solution.
[0074] In this document, terms such as "first" and "second" do not indicate their importance or order, but are only used to distinguish them to facilitate the description of the document.
[0075] To keep the drawings concise, each drawing only schematically shows the parts relevant to this utility model, and they do not represent the actual structure of the product. The nouns and pronouns referring to people in this patent application are not limited to specific genders.
[0076] Figure 1 This is a schematic diagram illustrating one embodiment of the interlocking unit of a switchgear. Figure 2 for Figure 1 The diagram shows the changing states of the interlocking unit. (See diagram for example.) Figure 1 and Figure 2 As shown, the interlocking unit 100 includes a locking element 10, a swing element 20, and a linkage assembly 30.
[0077] Lock 10 is installed in the cabinet of the switchgear (not shown in the figure). Lock 10 has a latch 11. The latch 11 can move along the first direction D1 to the first position ( Figure 1 (as shown in the image) and second position ( Figure 2 The lock 10 moves between the positions shown. In this illustrative embodiment, the lock 10 is, for example, a mechanical lock, in which the key is inserted into the lock cylinder and rotated, thereby driving the internal mechanical structure to move the bolt 11 between the first and second positions, but is not limited thereto.
[0078] The swing member 20 is rotatably mounted on the cabinet about a first axis X1. The axis of rotation of the swing member 20 is, for example, perpendicular to the first direction D1, but is not limited thereto. During the movement of the latch 11 from the first position to the second position, it can drive the swing member 20 from the first swing position (…). Figure 1 Rotate to the second swing position (as shown in the image). Figure 2 (as shown in the diagram). In this illustrative embodiment, the latch 11 drives the swing member 20 to move, for example, by abutting, but is not limited thereto.
[0079] In this illustrative embodiment, the locking member 10 may also include a pressure arm 12 fixed to the end of the latch 11. The latch 11 abuts against the swing member 20 via the pressure arm 12, thereby allowing for more flexible spatial arrangement. The pressure arm 12 may be formed, for example, by bending a sheet metal, but is not limited thereto. In other illustrative embodiments, the latch 11 may also abut directly against the swing member 20.
[0080] In this illustrative embodiment, the swing member 20 has a pressure-bearing member 22. The pressure-bearing member 22 is cylindrical with its axis parallel to the first axis X1. The plate surface of the pressure arm 12 is tangent to the side surface of the pressure-bearing member 22, and the swing member 20 is driven to move by pushing against the pressure-bearing member 22. This provides the structure with better stability.
[0081] like Figure 1 and Figure 2 As shown, the linkage assembly 30 includes a first actuator 31 and a linkage member 33. The first actuator 31 is movably disposed on the cabinet and is capable of translating along a plane perpendicular to the rotation axis of the swing member 20, so as to generate displacement along the first execution direction Z1. The first execution direction Z1 is, for example, parallel to the first direction D1, but is not limited thereto.
[0082] One end of the linkage 33 (i.e. Figure 1 and Figure 2 The upper end of the linkage 33 is rotatably connected to the swing member 20 about the second axis X2, wherein the second axis X2 is parallel to the rotation axis of the swing member 20. The other end of the linkage 33 (i.e. Figure 1 and Figure 2 The lower end of the locking tongue 11 is movably connected to the first actuator 31 along the linkage direction L. The linkage direction L is perpendicular to the rotation axis of the swing member 20 (i.e., the first axis X1) and forms an angle with the first execution direction Z1 (i.e., the linkage direction L is not parallel to the first execution direction Z1), with the angle being, for example, 150 to 170 degrees. By changing the relative positions of the first axis X1, the second axis X2, and the pressure member 22, the stroke of the first actuator 31 driven by the locking tongue 11 moving from the first position to the second position can be easily adjusted.
[0083] In this illustrative embodiment, the first actuator 31 is in the shape of a bent rod and includes an actuating segment 311 and a linkage segment 312. The actuating segment 311 extends along the first actuating direction Z1. The linkage segment 312 extends along the linkage direction L. One end of the linkage member 33 is slidably inserted into the free end of the linkage segment 312 along the linkage direction L (i.e., Figure 1 and Figure 2 (The upper part of the structure). This structure has good stability and is space-saving. However, it is not limited to this. In other illustrative embodiments, the first actuator 31 may also be other structures.
[0084] During the movement of the swing member 20 from the first swing position to the second swing position, it can drive the first actuator 31 from the first preparatory position via the linkage 33. Figure 1 The position shown) moves to the first execution position ( Figure 2 (As shown in the diagram). The first actuator 31, located in the first execution position, executes a locking procedure, for example, through the execution segment 311. Specifically, the locking procedure is, for example, but not limited to, locking the grounding switch operating shaft of the switchgear in the closed position or locking the grounding switch operating shaft in the open position. When the grounding switch operating shaft is in the closed position, the grounding switch of the switchgear is in the closed state. When the grounding switch operating shaft is in the open position, the grounding switch of the switchgear is in the open state.
[0085] like Figure 1 and Figure 2 As shown, specifically, the switchgear's grounding switch operating shaft 92 is rotatably mounted on the cabinet about its axis (i.e., the third axis X3) to switch between the closed and open positions. In this illustrative embodiment, the interlocking unit 100 also includes a first mating member 50. The first mating member 50 is fixedly connected to the grounding switch operating shaft 92. The first actuation direction Z1 is, for example, perpendicular to the axis of the grounding switch operating shaft (i.e., the third axis X3). Figure 3 For along Figure 2 Sectional view of section III-III. (e.g.) Figure 3 As shown, the first mating member 50 has a stop portion 51 protruding radially perpendicular to the third axis X3. When the grounding switch operating shaft 92 is in the closed position, the actuating section 311 of the first actuating member 31 in the first actuating position can abut against the stop portion 51 circumferentially along the grounding switch operating shaft 92 to prevent the grounding switch operating shaft 92 from rotating to the open position, thereby locking the grounding switch operating shaft 92 in the closed position. Alternatively, when the grounding switch operating shaft 92 is in the open position, the actuating section 311 of the first actuating member 31 in the first actuating position can abut against the stop portion 51 circumferentially along the grounding switch operating shaft 92 to prevent the grounding switch operating shaft 92 from rotating to the closed position, thereby locking the grounding switch operating shaft 92 in the open position. The first mating member 50 may be, for example, a plate-shaped piece perpendicular to the axis of the grounding switch operating shaft 92, but is not limited to this.
[0086] The interlocking unit of this switchgear has a simple structure, which helps to save space.
[0087] When in use, the interlocking units of this switchgear can be used in the same switchgear, for example, multiple interlocking units can be used in the same switchgear. Figure 4 and Figure 5 This is used to illustrate the situation where two interlocking units 100 are used in the same switch cabinet, wherein Figure 4 and Figure 5 Two states are shown. For ease of space arrangement, the shapes or sizes of individual components of the two interlocking units 100 are not exactly the same.
[0088] exist Figure 4In the indicated state, the grounding switch operating shaft 92 is in the open position. The locking tongue 11 of the interlocking unit 100 on the left is in the first position, and the first actuator 31 is in the first preparatory position. The locking tongue 11 of the interlocking unit 100 on the right is in the second position, and the first actuator 31 is in the first actuated position, locking the grounding switch operating shaft 92 in the open position.
[0089] exist Figure 5 In the indicated state, the grounding switch operating shaft 92 is in the closed position. The locking tongue 11 of the interlocking unit 100 on the left is in the second position, and the first actuator 31 is in the first actuation position, locking the grounding switch operating shaft 92 in the closed position. The locking tongue 11 of the interlocking unit 100 on the right is in the first position, and the first actuator 31 is in the first standby position.
[0090] like Figure 1 and Figure 2 As shown in the illustrative embodiment, the interlocking unit 100 further includes an elastic element 81. The elastic element 81 applies an elastic force to drive the swing member 20 from the second swing position to the first swing position. This facilitates the swing member 20 automatically returning from the second swing position to the first swing position when the latch 11 returns to the first position. The elastic element 81 is, for example, a tension spring, but is not limited thereto.
[0091] In the illustrative embodiment, the interlocking unit 100 may also include a support member (not shown in the figure). At least a portion of the structure of the interlocking unit 100, such as the locking member 10 and the swing member 20, is connected as a whole by the support member and connected to the cabinet by the support member, thereby facilitating installation, but not being limited thereto. In other illustrative embodiments, the cabinet may be directly connected without using a support member.
[0092] In an illustrative embodiment, the interlocking unit 100 may further include, for example, a guide member 40. The guide member 40 is positioned perpendicular to the first actuation direction Z1 and the rotation axis of the oscillating member 20 (see...). Figure 1 and Figure 2 The first actuator 31 is movably mounted on the cabinet (with a double-headed arrow in the middle) and has a through hole 41 extending along the first actuation direction Z1. The actuating segment 311 passes through the through hole 41 to define the posture of the first actuator 31. This structure is simple and helps save space, but it is not limited thereto. The guide 40 is movably mounted on the cabinet, for example, through a sliding hole slider structure (not shown in the figure), but it is not limited thereto.
[0093] In the illustrative embodiment, during the movement of the swing member 20 from the first swing position to the second swing position, the angle α between the common perpendicular of the rotation axis of the swing member 20 (i.e., the first axis X1) and the rotation axis of the linkage member 33 (i.e., the second axis X2) and the linkage direction L (see [reference]) is... Figure 1 The angle should not exceed 80 to 140 degrees. This facilitates the transmission of force and makes the linkage smoother.
[0094] Figure 6 and Figure 7 Another illustrative embodiment for illustrating the interlocking unit of the switchgear, wherein Figure 6 and Figure 7 Two states are shown. The interlocking unit of this illustrative embodiment is... Figure 1 and Figure 2 The similarities and differences between the interlocking units shown will not be repeated here; the differences are described below. In this illustrative embodiment, the interlocking unit 100 further includes a second actuator 60. The second actuator 60 is movably connected to the cabinet along a second actuation direction Z2, wherein the second actuation direction Z2 is perpendicular to the rotation axis (i.e., the first axis X1) of the swing member 20. In this illustrative embodiment, the second actuation direction Z2 is, for example, parallel to the first actuation direction Z1, but is not limited thereto. Specifically, in this illustrative embodiment, the second actuator 60 is, for example, provided with a limiting sliding hole 64 extending along the second actuation direction Z2. The interlocking unit 100 also includes, for example, a limiting pin 83. The limiting pin 83 is slidably disposed in the limiting sliding hole 64 and fixedly connected to the cabinet to limit the movement direction of the second actuator 60 relative to the cabinet.
[0095] The second actuator 60 is, for example, in the form of a bent plate, but is not limited thereto. The second actuator 60 has a connecting slide hole 61. The extending direction of the connecting slide hole 61 is perpendicular to the second actuation direction Z2 and the rotation axis (i.e., the first axis X1) of the swing member 20. The swing member 20 has a drive pin 21, the axis of which is parallel to the first axis X1. The drive pin 21 is inserted into the connecting slide hole 61. The swing member 20 is positioned at a first swing position (i.e., ... Figure 6 The position shown) is moved towards the second swing position (i.e. Figure 7 During the movement of the device (as shown in the diagram), the second actuator 60 can be driven from the second preparatory position to the second execution position via the drive pin 21. During this process, the drive pin 21 slides and rotates within the connecting sliding hole 61. The second actuator 60, located in the second execution position, is used to execute a locking procedure. This facilitates the execution of more locking procedures.
[0096] Specifically, in this illustrative embodiment, the switchgear has a handcart locking shaft 93, which is rotatably mounted on the cabinet about its axis (i.e., the fourth axis X4) to switch between a locked position and an unlocked position. Figure 6 and Figure 7 (The handcart locking shaft 93 is in the locked position). When the handcart locking shaft 93 is in the locked position, the handcart cannot move from the working position to the test position, nor can it move from the test position back to the working position. The interlocking unit 100 also includes a second mating member 70. The second mating member 70 is fixedly connected to the handcart locking shaft 93. Figure 8 For along Figure 7 A sectional view of section VIII-VIII. (e.g.) Figure 8 As shown, the second mating member 70 is, for example, a plate-shaped part perpendicular to the axis of the handcart locking shaft 93 (i.e., the fourth axis X4) and has a limiting side 71 extending in a straight line. The second actuating member 60 has a limiting plate 63 parallel to the axis of the handcart locking shaft 93 (i.e., the fourth axis X4). When the handcart locking shaft 93 is in the locked position and the second actuating member 60 moves to the second actuating position (i.e., Figure 7 In the position shown, the limiting plate 63 is parallel to and opposite to the limiting side 71 (see...). Figure 8 In this case, the limit plate 63 can prevent the handcart locking shaft 93 from rotating to the unlock position by abutting against the limit side 71, thereby locking the handcart locking shaft 93 in the locked position.
[0097] Figure 9 and Figure 10 Another illustrative embodiment for illustrating the interlocking unit of the switchgear, wherein Figure 9 and Figure 10 Two states are shown. The interlocking unit of this illustrative embodiment is... Figure 6 and Figure 7 The similarities and differences between the interlocking units shown will not be elaborated here; the difference lies in the second actuator 60. For example... Figure 9 and Figure 10 As shown, the switch cabinet has a socket plate 94, on which a grounding knife operating hole 941 is provided opposite to the grounding knife operating shaft 92. When adjusting the rotation position of the grounding knife operating shaft 92, the grounding knife operating member needs to be connected to the grounding knife operating shaft 92 by passing through the grounding knife operating hole 941 from right to left. In this illustrative embodiment, the second actuator 60 has a blocking part 62. The second actuator 60 is located in a second preparatory position (i.e., Figure 9 The position shown) moves to the second execution position (i.e. Figure 10 During the process of (as shown in the figure), it can be inserted between the ground knife operating hole 941 and the ground knife operating shaft 92 to prevent the ground knife operating member from passing through the ground knife operating hole 941 and connecting with the ground knife operating shaft 92.
[0098] Figure 11 and Figure 12 For explanation Figure 6 and Figure 9 The interlocking unit shown is used in the same switchgear application scenario, where Figure 11 and Figure 12 Two states are displayed.
[0099] like Figure 11As shown, when the grounding switch operating shaft 92 is in the open position, the locking tongue 11 of the left interlocking unit 100 remains in the first position, the first actuator 31 remains in the first preparatory position, and the second actuator 60 remains in the second preparatory position. When the locking tongue 11 of the right interlocking unit 100 moves to the second position, the first actuator 31 moves to the first actuation position and locks the grounding switch operating shaft 92 in the open position, and the second actuator 60 moves to the second actuation position and prevents the grounding switch operating member from passing through the grounding switch operating hole 941 and connecting with the grounding switch operating shaft 92.
[0100] like Figure 12 As shown, when the grounding switch operating shaft 92 is in the closed position and the handcart locking shaft 93 is in the locked position, the locking tongue 11 of the left interlocking unit 100 moves to the second position, the first actuator 31 moves to the first actuator position and locks the grounding switch operating shaft 92 in the closed position, and the second actuator 60 moves to the second actuator position and locks the handcart locking shaft 93 in the locked position. The locking tongue 11 of the right interlocking unit 100 remains in the first position, the first actuator 31 remains in the first preparatory position, and the second actuator 60 remains in the second preparatory position.
[0101] Figure 13 This is a structural schematic diagram illustrating one possible embodiment of the switchgear. For example... Figure 13 As shown, the switch cabinet includes a cabinet body 91 and the aforementioned interlocking unit 100, which is installed in the cabinet body 91. The interlocking unit of this switch cabinet has a simple structure, which helps to save space.
[0102] In the illustrative embodiment, the switchgear includes a grounding switch operating shaft 92 and a trolley locking shaft 93. Both the grounding switch operating shaft 92 and the trolley locking shaft 93 are rotatably mounted on the cabinet 91 about their own axes. The switchgear is provided with two interlocking units 100. For example, the interlocking unit 100 is... Figure 11 and Figure 12 The interlocking unit shown. For example... Figure 11 and Figure 12 As shown, for one of the interlocking units 100, the first actuator 31 in the first execution position can prevent the grounding switch operating shaft 92 from rotating from the closed position to the open position, and the second actuator 60 in the second execution position can lock the handcart locking shaft 93 in the locked position. For the other interlocking unit 100, the first actuator 31 in the first execution position can prevent the grounding switch operating shaft 92 from rotating from the open position to the closed position, and the second actuator 60 in the second execution position can prevent the grounding switch operating member from passing through the grounding switch operating hole 941 and connecting to the grounding switch operating shaft 92.
[0103] In the illustrative embodiment, the cabinet 91 has a door frame 911. The door frame 911 has an opening 912 along the entry direction E. The switch cabinet trolley 95 can enter and exit the cabinet 91 through the opening 912 to switch between the working position and the test position. The interlocking unit 100 is disposed on the inside of the door frame 911 along the entry direction E, thereby saving space.
[0104] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.
[0105] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present utility model, and are not intended to limit the scope of protection of the present utility model. All equivalent implementation schemes or modifications made without departing from the spirit of the present utility model, such as combinations, divisions or repetitions of features, should be included within the scope of protection of the present utility model.
Claims
1. Interlocking unit for a switchgear cabinet, characterized in that The application relates to a locking unit for a switch cabinet, comprising: a locking piece (10) mounted on a cabinet body of the switch cabinet, the locking piece (10) having a locking tongue (11) capable of moving in a first direction (D1) between a first position and a second position; a swing piece (20) rotatably arranged on the cabinet body, the swing piece (20) being capable of being driven to rotate from a first swing position to a second swing position during movement of the locking tongue (11) from the first position to the second position; and a linkage assembly (30) comprising: a first execution piece (31) movably arranged on the cabinet body and capable of translating in a plane perpendicular to an axis of rotation of the swing piece (20) to generate displacement in a first execution direction (Z1), and a linkage piece (33) having one end rotatably connected to the swing piece (20) and having an axis of rotation parallel to the axis of rotation of the swing piece (20), and having the other end movably connected to the first execution piece (31) in a linkage direction (L) perpendicular to the axis of rotation of the swing piece (20) and forming an included angle with the first execution direction (Z1), the linkage piece (33) being capable of driving the first execution piece (31) to move from a first standby position to a first execution position during movement of the swing piece (20) from the first swing position to the second swing position, the first execution piece (31) in the first execution position being used to execute a locking program. During movement of the swing piece (20) from the first swing position to the second swing position, the included angle between the axis of rotation of the swing piece (20) and the axis of rotation of the linkage piece (33) and the linkage direction (L) does not exceed an angle range of 80 degrees to 140 degrees.
2. The interlocking unit of the switchgear cabinet according to claim 1, characterized in that, The first execution piece (31) is in the form of a bent rod and comprises:
3. The interlocking unit of the switchgear cabinet according to claim 1, characterized in that, an execution section (311) extending in the first execution direction (Z1), the execution section (311) being used to execute a locking program when the first execution piece (31) is in the first execution position; and a linkage section (312) extending in the linkage direction (L), one end of the linkage piece (33) being slidably inserted into a free end of the linkage section (312) in the linkage direction (L). The locking unit further comprises a guide piece (40) movably arranged on the cabinet body in a direction perpendicular to the first execution direction (Z1) and the axis of rotation of the swing piece (20) and having a through hole (41) penetrating in the first execution direction (Z1), the execution section (311) being inserted into the through hole (41).
4. The interlocking unit of the switchgear cabinet according to claim 3, characterized in that, 5. The interlocking unit of the switchgear cabinet according to claim 1, characterized in that, The ground knife operating shaft of the switch cabinet is rotatably arranged on the cabinet body around its axis to switch between the closed position and the open position. The interlocking unit further comprises a first matching part (50) fixedly connected to the ground knife operating shaft and provided with a stop portion (51) protruding radially. When the ground knife operating shaft is located at one of the closed position and the open position, the first executing part (31) in the first executing position can abut against the stop portion (51) along the circumference of the ground knife operating shaft to prevent the ground knife operating shaft from rotating to the other one of the closed position and the open position.
6. The interlocking unit of the switchgear cabinet according to claim 1, characterized in that, The interlocking unit further comprises a second executing part (60) movably connected to the cabinet body along a second executing direction (Z2) perpendicular to the rotation axis of the swing part (20). The second executing part (60) has a connecting sliding hole (61) extending in a direction perpendicular to the second executing direction (Z2) and the rotation axis of the swing part (20). The swing part (20) has a driving pin (21) inserted into the connecting sliding hole (61). During the movement of the swing part (20) from the first swing position to the second swing position, the second executing part (60) can be driven by the driving pin (21) to move from the second standby position to the second executing position. The second executing part (60) in the second executing position is used to execute a locking program.
7. The interlocking unit of the switchgear cabinet according to claim 6, characterized in that, The second executing part (60) has a shielding portion (62) which can be inserted between the ground knife operating hole and the ground knife operating shaft during the movement of the second executing part (60) from the second standby position to the second executing position to prevent the ground knife operating part from being connected to the ground knife operating shaft through the ground knife operating hole.
8. The interlocking unit of the switchgear cabinet according to claim 6, characterized in that, The handcart locking shaft of the switch cabinet is rotatably arranged on the cabinet body around its axis to switch between the locked position and the unlocked position. The interlocking unit further comprises a second matching part (70) fixedly connected to the handcart locking shaft. The second matching part (70) is in the shape of a plate perpendicular to the axis of the handcart locking shaft and has a limiting side (71) extending in a straight line. The second executing part (60) has a limiting plate (63) parallel to the axis of the handcart locking shaft. When the handcart locking shaft is located at the locked position and the second executing part (60) moves to the second executing position, the limiting plate (63) is parallel to and opposite to the limiting side (71). The limiting plate (63) can prevent the handcart locking shaft from rotating to the unlocked position by abutting against the limiting side (71).
9. The interlocking unit of the switchgear cabinet according to claim 1, characterized in that, The interlocking unit further comprises an elastic part (81) for applying an elastic force to drive the swing part (20) to move from the second swing position to the first swing position.
10. Switchgear cabinet, characterized in that The interlocking unit as claimed in any one of claims 1 to 9 is installed on the cabinet body (91).
11. Switchgear according to claim 10, characterized in that The switch cabinet comprises a ground blade operating shaft (92) rotatably arranged around its axis in the cabinet body (91) to switch between a closed position and an open position, and is provided with two interlocking units, for one of the interlocking units, the first actuating member (31) in the first actuating position can prevent the ground blade operating shaft (92) from rotating from the closed position to the open position, and for the other interlocking unit, the first actuating member (31) in the first actuating position can prevent the ground blade operating shaft (92) from rotating from the open position to the closed position.
12. The switchgear of claim 10, wherein, The cabinet body (91) has a door frame (911) provided with an opening (912) in an entering direction (E), and the interlocking unit is arranged on the inner side of the door frame (911) in the entering direction (E).