Ring main unit external hanging operation device and ring main unit structure

Abstract

The utility model relates to a ring main unit external hanging operation device and a ring main unit structure. The ring main unit external hanging operation device comprises a shell, a driving mechanism, a transmission mechanism, a telescopic rod, an adapter and a control assembly. The driving mechanism is arranged in the shell; the transmission mechanism is arranged in the shell and is connected with the driving mechanism; one end of the telescopic rod is connected with the transmission mechanism, and the other end of the telescopic rod is detachably connected with the adapter; the control assembly is arranged on the surface of the shell and electrically connected with the driving mechanism. The corresponding adapter is selected according to the shape of the interface at the position of the switch device of the ring main unit so as to be matched with the shape of the interface at the position of the switch device of the ring main unit, the adapter is connected to the position of the switch device so as to adapt to ring main units of different models, and by adjusting the length of the telescopic rod, the distance between the interface at the position of the switch device and an operation hole of the ring main unit is adapted. Through the arrangement, the installation efficiency of the ring main unit structure can be improved.

Description

Technical Field

[0001] This application relates to the field of power operation device technology, and in particular to an external operation device for a ring main unit and the structure of the ring main unit. Background Technology

[0002] With the development of power technology, ring main unit (RMU) technology has emerged. A RMU is a high-voltage switchgear used in ring-shaped power distribution networks. Its power supply trunk line forms a closed loop, and each distribution branch can draw power from both sides of the trunk line. If one side fails, the other side automatically switches power supply, achieving a similar effect to dual power supply. This improves the reliability of power supply. RMUs are widely used in power supply and distribution links in urban power grids, industrial parks, shopping malls, etc.

[0003] In related technologies, ring main units typically have an operating hole on one side. When it is necessary to operate the ring main unit switch, the operating handle is inserted into the ring main unit through the operating hole. The end of the operating handle connects to the interface of the switch device inside the ring main unit. Rotating the operating handle then adjusts the switch of the ring main unit. The above operation is done manually. Currently, to achieve electrified operation of the ring main unit, external devices have emerged. Part of the structure of the external device directly connects to the interface of the switch device inside the ring main unit and directly controls the switch of the ring main unit through electric drive.

[0004] However, existing ring main units (RMS) typically come in various models or specifications due to differences in brand and application scenarios. The interfaces at the switchgear and the distance from the interface to the operating hole vary between different models and specifications. Existing external devices are usually designed based on specific RMS models. For different RMS models, due to interface mismatch or unsuitable structural length of the part connecting to the interface, the external device cannot be connected and used. It is necessary to redesign, mold, and produce the external device according to the shape of the interface at the switchgear and the distance from the interface to the operating hole of different RMS, which greatly increases the design and manufacturing costs and is time-consuming in the production process. Utility Model Content

[0005] Therefore, it is necessary to provide an external operating device and ring main unit structure to address the problem that the aforementioned external ring main unit operating devices cannot be adapted to different models of ring main units.

[0006] On the one hand, this application provides an external operating device for a ring main unit, which includes:

[0007] case;

[0008] The drive mechanism is located inside the housing;

[0009] A transmission mechanism is located inside the housing and is connected to the drive mechanism;

[0010] The telescopic rod and the adapter are provided, wherein one end of the telescopic rod is connected to the transmission mechanism, the other end of the telescopic rod extends to the outside of the housing, and the adapter is detachably connected to the other end of the telescopic rod.

[0011] A control component is located inside the housing and is used to control the drive mechanism to drive the transmission mechanism to move.

[0012] In some embodiments, the telescopic rod is detachably connected to the transmission mechanism.

[0013] In some embodiments, the drive mechanism includes a motor, the power output shaft of which is connected to the transmission mechanism, and the control component is electrically connected to the motor.

[0014] In some embodiments, the transmission mechanism includes a worm and a plurality of gears, the worm being connected to the drive mechanism, the plurality of gears meshing sequentially, one of the gears meshing with the worm, and the telescopic rod being connected to another gear.

[0015] In some embodiments, the external operating device of this ring main unit also includes an operating handle, and a connecting part is provided at the center of the gear connected to the telescopic rod, and the operating handle is detachably connected to the connecting part.

[0016] In some embodiments, the connecting portion is provided with a protrusion or a groove, and the operating handle engages with the protrusion or groove.

[0017] In some embodiments, the control component includes a control box and a signal generator. The control box is located inside the housing, and the signal generator is located inside the control box and is used to control the drive mechanism to drive the transmission mechanism to move.

[0018] In some embodiments, the external operating device of this ring main unit further includes a temperature sensor, which is in contact with the drive mechanism;

[0019] The control component also includes an alarm device, which is located inside the control box and electrically connected to the temperature sensor.

[0020] On the other hand, this application also provides a ring main unit structure, which includes the external operating device of the ring main unit as described above. The ring main unit structure also includes a cabinet and a switch device. The switch device is located inside the cabinet, and the external operating device of the ring main unit is located on one side of the cabinet. The end of the adapter away from the telescopic rod is connected to the switch device.

[0021] In some embodiments, the ring main unit structure further includes a mounting plate, which is fixedly connected between the housing and the cabinet body.

[0022] The aforementioned external operating device and structure of the ring main unit connect to the switching device of the ring main unit via an adapter. A control component controls the switching of the drive mechanism. Once activated, the drive mechanism moves the transmission mechanism, which in turn moves the telescopic rod, the adapter, and the switching device of the ring main unit. This allows for electric control of the ring main unit's switching, saving time and effort. The adapter matches the interface shape of the ring main unit's switching device. When adapting to different models of ring main units, since the adapter and telescopic rod are detachably connected, only the corresponding adapter needs to be designed to replace the original adapter, thus adapting to the interface of different models of ring main units' switching devices. Furthermore, by adjusting the length of the telescopic rod to match the distance from the interface of the switching device to the operating hole, the adapter can be connected to the interface of the switching device, enabling rapid adaptation to different models of ring main units and improving the installation efficiency of the ring main unit structure. Attached Figure Description

[0023] Figure 1 This is a front view of the overall structure of an external operating device for a ring main unit according to an embodiment of this application.

[0024] Figure 2 This is a side view of the overall structure of an external operating device for a ring main unit according to an embodiment of this application.

[0025] Figure 3 This is a schematic diagram of the connection structure of gears, telescopic rods and adapters in an external operating device for a ring main unit according to an embodiment of this application.

[0026] In the diagram, 100 is the housing; 110 is the cover plate; 120 is the hinge; 200 is the drive mechanism; 210 is the motor; 300 is the transmission mechanism; 310 is the worm gear; 320 is the gear; 321 is the connecting part; 400 is the telescopic rod; 500 is the adapter; 600 is the control component; and 610 is the control box. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0028] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0029] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0033] See Figure 1 and Figure 2 , Figure 1 This is a front view of the overall structure of the external operating device for a ring main unit according to one embodiment of this application. Figure 2 This diagram shows a side view of the overall structure of an external operating device for a ring main unit according to an embodiment of this application. The external operating device for a ring main unit provided in one embodiment of this application includes a housing 100, a drive mechanism 200, a transmission mechanism 300, a telescopic rod 400, an adapter 500, and a control component 600. The drive mechanism 200 is located inside the housing 100; the transmission mechanism 300 is located inside the housing 100 and connected to the drive mechanism 200; one end of the telescopic rod 400 is connected to the transmission mechanism 300, and the other end of the telescopic rod 400 extends to the outside of the housing 100; the adapter 500 is detachably connected to the other end of the telescopic rod 400; the control component 600 is located inside the housing 100 and is used to control the drive mechanism 200 to drive the transmission mechanism 300.

[0034] like Figure 1 and Figure 2 As shown, preferably, the drive mechanism 200, transmission mechanism 300, and control component 600 are all housed inside the housing 100 to protect them from impact damage. The control component 600 is electrically connected to the drive mechanism 200, and can control the opening, closing, and direction of movement of the drive mechanism 200. The transmission mechanism 300 is connected to the drive mechanism 200, and the drive mechanism 200 can drive the transmission mechanism 300 to move (rotate or move, etc.). The telescopic rod 400 is connected to the transmission mechanism 300, and the transmission mechanism 300 drives the telescopic rod 400 to move, which in turn drives the adapter 500 at the other end of the telescopic rod 400 to move. The adapter 500 is connected to the switching device of the ring main unit, and when the adapter 500 moves in a specific manner, it can adjust the switching state of the ring main unit. The telescopic rod 400 can extend or shorten along its own length to adjust the installation distance between the transmission mechanism 300 and the switchgear of the ring main unit, which facilitates installation; the adapter 500 is detachably connected to the telescopic rod 400 and can be disassembled and replaced.

[0035] When installing the external operating device for this ring main unit, select the adapter 500 according to the interface corresponding to the switch device of the ring main unit. For example, if the interface at the switch device is a regular hexagonal protrusion, select an adapter 500 with a regular hexagonal groove to match the interface at the switch device of the ring main unit. First, connect the adapter 500 to the interface of the switch device of the ring main unit. Adjust the length of the telescopic rod 400 according to the distance between the interface of the switch device and the operating hole, so that after the housing 100 is installed, the end of the telescopic rod 400 can connect with the adapter 500. Align the adapter 500 with the operating hole of the ring main unit, place the housing 100 on the surface of the ring main unit, and extend the telescopic rod 400 from the operating hole to the installation position of the adapter 500. When the housing 100 is installed, the adapter 500 is exactly connected to the end of the telescopic rod 400, completing the installation. When it is necessary to control the switch of the ring main unit, operate the control component 600 to start the drive mechanism 200, which in turn drives the transmission mechanism 300, the telescopic rod 400, the adapter 500, and the switchgear of the ring main unit to move, thereby controlling the switch of the ring main unit. When it is necessary to install it on other models of ring main units, simply adjust the length of the telescopic rod 400 and replace it with the corresponding matching adapter 500 to match and install it with other models of ring main units.

[0036] With the above settings, the adapter 500 can be selected and replaced according to different ring main units. The adapter 500 is connected to the telescopic rod 400 through a detachable connection, which can be quickly replaced. Furthermore, by adjusting the length of the telescopic rod 400 to adapt to the installation distance of different ring main units, different models of ring main units can be quickly adapted, improving the versatility and installation efficiency of the device. Moreover, the operation device does not need to be mass-produced to customize the model, which effectively reduces the design and manufacturing costs.

[0037] It should be noted that during the installation of the external operating device for this ring main unit, the adapter 500 mates with the interface at the end of the telescopic rod 400 via a matching interface. The interface at the end of the telescopic rod 400 needs to be at a matching angle to mate with the interface of the adapter 500. If the interface of the adapter 500 is triangular, it may be at an equilateral or inverted triangular angle, or the orientation of the angle may differ from the initial installation orientation of the triangular mating part at the end of the telescopic rod 400. Therefore, it is necessary to rotate either the adapter 500 or the telescopic rod 400 to mate them. However, rotating the adapter 500 will cause the interface at the switch device to rotate, potentially leading to misoperation of the ring main unit's switch. Therefore, when mates the telescopic rod 400 with the adapter 500, the interface angle of the telescopic rod 400 should be adjusted by rotating the telescopic rod 400 and the transmission mechanism 300 to avoid misoperation of the ring main unit's switch.

[0038] In addition, for ease of operation of the control component 600 and maintenance of the operating device of this ring main unit, please refer to... Figure 1 and Figure 2An operating port is provided on the side of the housing 100 facing away from the ring main unit, and a cover plate 110 is provided at the operating port. The cover plate 110 is connected to the housing 100 via a hinge 120. When operation or maintenance is required, the cover plate 110 is opened for operation or maintenance. When operation or maintenance is not required, the cover plate 110 is closed to prevent accidental contact with the drive mechanism 200, transmission mechanism 300 and control components 600, which could lead to malfunction, and to prevent dust or liquid from entering the housing 100 and reducing the service life of the device.

[0039] In some embodiments, the telescopic rod 400 is detachably connected to the transmission mechanism 300.

[0040] It should be noted that the telescopic rod 400 and the transmission mechanism 300 can be either detachably connected or fixedly connected. (See reference...) Figure 3 Preferably, the telescopic rod 400 is detachably connected to the transmission mechanism 300, and can move with the transmission mechanism 300 after being connected. With this configuration, when the telescopic rod 400 malfunctions, only the telescopic rod 400 needs to be replaced, without having to replace the transmission mechanism 300 along with it, thus improving the ease of disassembly and assembly.

[0041] In some embodiments, the drive mechanism 200 includes a motor 210, the power output shaft of the motor 210 is connected to the transmission mechanism 300, and the control component 600 is electrically connected to the motor 210.

[0042] See Figure 1 Preferably, the drive mechanism 200 includes a motor 210, which drives the transmission mechanism 300 to rotate; the control component 600 controls the switching on and off of the motor 210 and its rotation direction, thereby realizing the switching control of the ring main unit.

[0043] In some embodiments, the transmission mechanism 300 includes a worm 310 and a plurality of gears 320. The worm 310 is connected to the drive mechanism 200, and the plurality of gears 320 mesh in sequence. One gear 320 meshes with the worm 310, and the telescopic rod 400 is connected to another gear 320.

[0044] See Figure 1 Preferably, the worm gear 310 is connected to the drive mechanism 200. The drive mechanism 200 drives the worm gear 310 to rotate, and the worm gear 310 drives the meshing gear 320 to rotate, thereby moving the telescopic rod 400. By setting the structure of the worm gear 310 and gear 320 meshing together, stable transmission can be provided. Figure 1 As shown, multiple gears 320 mesh in an L-shaped structure, making the overall structure of the drive mechanism 200 and the transmission mechanism 300 compact, which can appropriately reduce the volume required for the housing 100 and facilitate installation and use.

[0045] In addition, by setting the worm gear 310 and gear 320 for transmission, high transmission accuracy can be ensured. The appropriate transmission ratio of gear 320 can be set according to the usage requirements. By controlling the rotation angle of the worm gear 310 driven by the drive mechanism 200, the rotation angle of gear 320 connected to the telescopic rod 400 can be precisely controlled. This ensures that when adjusting the ring main unit switch, the adapter 500 drives the ring main unit's switch device to rotate a specific angle, avoiding the ring main unit from failing to switch properly due to insufficient rotation, or the switch device from over-rotating, causing the switch device to bear excessive force and resulting in damage.

[0046] In some embodiments, the external operating device of this ring main unit also includes an operating handle (not shown in the figure), and a connecting part 321 is provided at the center of the gear 320 connected to the telescopic rod 400. The operating handle and the connecting part 321 are detachably connected.

[0047] See Figure 1 and Figure 3 Preferably, the connecting part 321 is located at the center of the gear 320 connected to the telescopic rod 400. The operating handle is connected to the connecting part 321, and rotating the operating handle can drive the gear 320 connected to the telescopic rod 400 to rotate. With the above configuration, in some situations where manual control of the ring main unit switch is required (such as a failure of the drive mechanism 200 or a failure of the control component 600), relevant personnel can connect the operating handle to the connecting part 321, rotate the operating handle to drive the gear 320 to rotate, thereby driving the ring main unit's switching device to move through the telescopic rod 400 and the adapter 500, thus realizing the control of the ring main unit switch. When the external operating device of this ring main unit fails, it is necessary to disassemble the ring main unit's operating device in order to manually operate the ring main unit switch using the original operating handle. This process is time-consuming and laborious. With the above configuration, the ring main unit switch can be manually controlled without disassembling the existing device, making the operation simple and quick.

[0048] In some embodiments, the connecting portion 321 is provided with a protrusion or a groove, and the operating handle engages with the protrusion or groove.

[0049] Preferably, the connecting part 321 is a regular hexagonal protrusion, and the end of the operating handle has a regular hexagonal groove that matches the connecting part 321. In use, the operating handle engages with the connecting part 321, and rotating the operating handle drives the gear 320 to rotate. The connecting part 321 has a regular hexagonal groove, and the end of the operating handle has a regular hexagonal protrusion that matches the connecting part 321. In use, the operating handle engages with the connecting part 321, and rotating the operating handle drives the gear 320 to rotate. This design allows the operating handle to engage with the connecting part 321, making operation simple and quick.

[0050] In some embodiments, the control component 600 includes a control box 610 and a signal generator (not shown in the figure). The control box 610 is located inside the housing 100, and the signal generator is located inside the control box 610 and is used to control the drive mechanism 200 to drive the transmission mechanism 300 to move.

[0051] Preferably, the control box 610 is located inside the housing 100, and the signal generator is located inside the control box 610. The surface of the control box 610 may be equipped with buttons or a control panel connected to the signal generator, allowing the signal generator to emit signals via the buttons or control panel. The signal generator can emit different signals to control the switching and movement direction of the drive mechanism 200.

[0052] Furthermore, the surface of the housing 100 is provided with a clearance opening, and the surface of the control box 610 with buttons or control panels is exposed in the clearance opening to facilitate the operation of the buttons or control panels by the operator.

[0053] In some embodiments, the operating device of this ring main unit also includes a temperature sensor (not shown in the figure), which is in contact with the drive mechanism 200;

[0054] The control assembly 600 also includes an alarm device (not shown in the figure), which is located inside the control box 610 and is electrically connected to the temperature sensor.

[0055] When the drive mechanism 200 malfunctions, it continuously generates heat, leading to overheating. Overheating can cause dangerous situations such as fires. Preferably, a temperature sensor is located inside the drive mechanism 200 to detect its temperature. When the detected temperature is too high, an alarm device will sound, alerting relevant personnel to investigate the problem and prevent dangerous situations caused by overheating.

[0056] Furthermore, the alarm device can be equipped with alarm lights or horns to alert relevant personnel.

[0057] On the other hand, this application also provides a ring main unit structure, which includes the external operating device of the ring main unit as described above. The ring main unit structure also includes a cabinet (not shown in the figure) and a switch device (not shown in the figure). The switch device is located inside the cabinet, and the external operating device of the ring main unit is located on one side of the cabinet. The end of the adapter 500 away from the telescopic rod 400 is connected to the switch device.

[0058] Preferably, the housing 100 of the external operating device of the ring main unit is installed on the side of the unit, and the telescopic rod 400 is connected to the switching device via an adapter 500. Thus, the switching device can be controlled via the external operating device of the ring main unit, realizing the switching of the ring main unit structure.

[0059] In some embodiments, the ring main unit structure also includes a mounting plate (not shown in the figure), which is fixedly connected between the housing 100 and the cabinet.

[0060] Because the housing 100 of the external operating device for the ring main unit is small in size, the installation area where the housing 100 contacts the cabinet is small, and the spacing between the original mounting holes on the cabinet is large, the housing 100 cannot be matched with the original mounting holes on the cabinet surface for installation. Preferably, the side area of ​​the mounting plate is larger than the area of ​​the side of the housing 100 facing the cabinet. The mounting plate can be installed by matching the original mounting holes on the cabinet. By drilling holes in the mounting plate, the housing 100 is installed on the mounting plate. With the above arrangement, the ring main unit operating device can be installed using the original mounting holes of the cabinet, without the need for additional drilling or cutting of the cabinet, thus ensuring the integrity of the cabinet.

[0061] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. An external operating device for a ring main unit, characterized in that, include: case; The drive mechanism is located inside the housing; A transmission mechanism is located inside the housing and is connected to the drive mechanism; The telescopic rod and the adapter are provided, wherein one end of the telescopic rod is connected to the transmission mechanism, the other end of the telescopic rod extends to the outside of the housing, and the adapter is detachably connected to the other end of the telescopic rod. A control component is located inside the housing and is used to control the drive mechanism to drive the transmission mechanism to move.

2. The external operating device for the ring main unit according to claim 1, characterized in that, The telescopic rod is detachably connected to the transmission mechanism.

3. The external operating device for the ring main unit according to claim 1, characterized in that, The drive mechanism includes a motor, the power output shaft of the motor is connected to the transmission mechanism, and the control component is electrically connected to the motor.

4. The external operating device for the ring main unit according to claim 1, characterized in that, The transmission mechanism includes a worm and multiple gears. The worm is connected to the drive mechanism, and the multiple gears mesh sequentially. One of the gears meshes with the worm, and the telescopic rod is connected to another gear.

5. The external operating device for the ring main unit according to claim 4, characterized in that, It also includes an operating handle, and a connecting part is provided at the center of the gear connected to the telescopic rod. The operating handle and the connecting part are detachably connected.

6. The external operating device for the ring main unit according to claim 5, characterized in that, The connecting part is provided with a protrusion or a groove, and the operating handle cooperates with the protrusion or groove.

7. The external operating device for the ring main unit according to claim 1, characterized in that, The control assembly includes a control box and a signal generator. The control box is located inside the housing, and the signal generator is located inside the control box and is used to control the drive mechanism to drive the transmission mechanism to move.

8. The external operating device for the ring main unit according to claim 7, characterized in that, It also includes a temperature sensor, which is in contact with the drive mechanism; The control component also includes an alarm device, which is located inside the control box and electrically connected to the temperature sensor.

9. A ring main unit structure, characterized in that, The device includes the external operating device for the ring main unit as described in any one of claims 1-8, and further includes a cabinet and a switch device. The switch device is located inside the cabinet, the external operating device for the ring main unit is located on one side of the cabinet, and the end of the adapter away from the telescopic rod is connected to the switch device.

10. The ring main unit structure according to claim 9, characterized in that, It also includes a mounting plate, which is fixedly connected between the housing and the cabinet.

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