Ring main unit locking device convenient to install

Abstract

The utility model relates to the technical field of high-voltage electrical equipment, in particular to a ring main unit locking device convenient to install. The ring main unit locking device convenient to install comprises a device main body installed in a mechanism chamber; the first mounting plate is detachably connected with the device main body; and the first electromagnet is arranged on the first mounting plate. The grounding locking device solves the technical problems that an operation panel needs to be perforated before installation due to the fact that an existing grounding locking device is placed on the operation panel, the installation mode is complex, replacement is not easy, and the occupied space is large.

Description

Technical Field

[0001] This application relates to the field of high-voltage electrical equipment technology, and more specifically, to a ring main unit interlocking device that is easy to install. Background Technology

[0002] In power systems, ring main units play a vital role, and interlocking devices are a key component in ensuring power supply safety. Ring main units are widely used in urban power grid ring power supply, dual power supply, or terminal power supply systems, providing reliable power supply to numerous users.

[0003] In the operating environment of a ring main unit with double bus tie system, the safety of the power supply system is the primary consideration. To avoid electrical accidents caused by misoperation or abnormal conditions, there are strict safety requirements for the operation of the bus tie system. Under normal circumstances, in such a system, when the grounding switch of any bus tie system is in the closed state, in order to prevent possible electrical faults and ensure personnel safety, it is necessary to restrict the closing operation of the load switch of the other bus tie system.

[0004] The working principle of the grounding interlocking device is usually as follows: under high voltage conditions, the high voltage sensor outputs an electrical signal to control the relay contacts in the live display to close, causing the interlocking electromagnet to be attracted. After the electromagnet is attracted, it prevents the grounding operation hole from being opened and the grounding switch cannot be operated, thereby achieving the interlocking of the grounding switch. However, the existing grounding interlocking device is placed on the operation panel, which requires drilling holes in the operation panel before installation. The installation method is complicated and not easy to replace, and it occupies a lot of space.

[0005] There is currently no effective solution to the problem that existing grounding interlocking devices are placed on the control panel, requiring holes to be drilled in the control panel before installation, making the installation method complicated, difficult to replace, and taking up a lot of space. Summary of the Invention

[0006] The main purpose of this application is to provide an easy-to-install ring main unit interlocking device to solve the problems of existing grounding interlocking devices being placed on the operation panel, requiring holes to be drilled in the operation panel before installation, having a complicated installation method, being difficult to replace, and occupying a large space.

[0007] To achieve the above objectives, this application provides an easy-to-install ring main unit interlocking device.

[0008] The easy-to-install ring main unit interlocking device according to this application includes: a device body, installed in the mechanism room;

[0009] The first mounting plate is detachably connected to the main body of the device;

[0010] The first electromagnet is mounted on the first mounting plate.

[0011] Furthermore, the first mounting plate is provided with a first connecting hole and a second connecting hole;

[0012] The first connecting hole is connected to the main body of the device by bolts;

[0013] The second connecting hole is connected to the first electromagnet by a bolt.

[0014] Furthermore, the first mounting plate includes: a main body plate;

[0015] The first connecting plate is connected to the upper right end of the main body plate and is bent forward along the main body plate;

[0016] The second connecting plate is connected to the middle of the left side of the main body plate and is bent backward along the main body plate;

[0017] The third connecting plate is connected to the lower right end of the main body plate and is bent backward along the main body plate;

[0018] The fourth connecting plate is connected to the middle of the upper part of the main body plate.

[0019] Furthermore, the first connecting plate has a first circular connecting hole; the main body plate has several waist holes and a second circular hole; and the fourth connecting plate has a third circular connecting hole.

[0020] Furthermore, a second mounting plate is provided between the first mounting plate and the main body of the device.

[0021] Furthermore, the second mounting plate includes: a square plate, a transition plate connected to the square plate, and a strip plate connected to the transition plate;

[0022] The square plate and the transition plate are integrally formed; the strip plate is perpendicular to the square plate; the short side of the strip plate is collinear with the bottom plate of the transition plate.

[0023] Furthermore, it also includes: a third mounting plate; the third mounting plate comprises: a trapezoidal plate and strip plates connected to the trapezoidal plate;

[0024] The trapezoidal plate and the strip plate are provided with a fourth circular connecting hole.

[0025] Furthermore, a second electromagnet is mounted on the third mounting plate.

[0026] Furthermore, the output end of the first electromagnet faces the load switch.

[0027] Furthermore, the output terminal of the second electromagnet faces the grounding switch.

[0028] In this embodiment, the device is installed in the mechanism chamber by changing the installation position. The device body is detachably connected to the device body and the mechanism chamber. The first electromagnet is set on the first mounting plate, which achieves the purpose of installing the locking device in the mechanism chamber. This achieves the technical effect of simple installation and space saving, and solves the technical problem that the existing grounding locking device is placed on the operation panel, which requires drilling holes in the operation panel before installation, has a complicated installation method, is not easy to replace, and occupies a lot of space. Attached Figure Description

[0029] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of the accompanying drawings are used to explain the application and do not constitute an undue limitation of the application. In the drawings:

[0030] Figure 1 This is a schematic diagram of the structure of an easy-to-install ring main unit interlocking device according to an embodiment of this application;

[0031] Figure 2 This is an isometric view of an easy-to-install ring main unit interlocking device according to an embodiment of this application;

[0032] Figure 3 This is a structural schematic diagram of the hidden external parts of the ring main unit interlocking device according to an embodiment of this application;

[0033] Figure 4 This is a schematic diagram of an easy-to-install ring main unit interlocking device according to an embodiment of this application;

[0034] Figure 5 This is an isometric view of an easy-to-install ring main unit locking device according to an embodiment of this application;

[0035] Figure 6 This is a schematic diagram of the structure of the first mounting plate of the easy-to-install ring main unit interlocking device according to an embodiment of this application;

[0036] Figure 7 This is a schematic diagram of the first mounting plate of the easy-to-install ring main unit interlocking device according to an embodiment of this application;

[0037] Figure 8 This is a schematic diagram of an easy-to-install ring main unit interlocking device according to an embodiment of this application;

[0038] Figure 9 yes Figure 8 A magnified view of part A in the middle;

[0039] Figure 10This is a schematic diagram of the installation state of the second electromagnet of the easy-to-install ring main unit interlocking device according to an embodiment of this application;

[0040] Figure 11 This is a schematic diagram of the installation state of the first electromagnet of the easy-to-install ring main unit interlocking device according to an embodiment of this application.

[0041] Figure Labels

[0042] 1. Main body of the device; 2. First mounting plate; 3. First electromagnet; 4. Main plate; 31. Waist hole; 32. Second circular hole; 311. Narrow waist hole; 312. Wide waist hole; 5. First connecting plate; 51. First circular connecting hole; 6. Side plate; 7. Second connecting plate; 8. Third connecting plate; 9. Fourth connecting plate; 10. Second mounting plate; 101. Square plate; 102. Transition plate; 103. Strip plate; 11. Third mounting plate; 111. Trapezoidal plate; 112. Strip plate; 12. Locking load switch; 13. Locking grounding switch; 14. Second electromagnet. Detailed Implementation

[0043] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0044] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0045] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "middle," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing the present invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0046] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0047] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; 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, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0048] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0049] like Figure 1-11 As shown, this application relates to an easy-to-install ring main unit interlocking device, which includes: a device body 1, installed in the mechanism room of the ring main unit, the mechanism room being a dedicated space in the ring main unit for installing and protecting mechanical and electrical components.

[0050] The first mounting plate 2 is detachably connected to the main body 1 of the device and is used to support and fix the first electromagnet 3.

[0051] The first electromagnet 3 is mounted on the first mounting plate 2 and is used to realize the bus tie interlocking function.

[0052] The interlocking function of the bus tie cabinet refers to the interlocking device in a double bus system that can prevent switch operations that do not conform to safe operating logic. For example, when the grounding switch of one bus tie cabinet is in the closed state, the interlocking device prevents the load switch of the other bus tie cabinet from closing by electrical or mechanical means. Through the function of the interlocking device, the safety and reliability of the system operation are ensured, and short circuits or other power supply accidents caused by misoperation are avoided.

[0053] As can be seen from the above description, in this embodiment of the application, the device body 1 is installed in the mechanism chamber by changing the installation position; the first mounting plate 2 is detachably connected to the device body 1 and the mechanism chamber respectively; the first electromagnet 3 is set on the first mounting plate 2, thereby achieving the purpose of installing the locking device in the mechanism chamber. This achieves the technical effects of simple installation, space saving, eliminating the need for panel opening to increase material types and cutting costs, simplifying the installation method and reducing material costs. It also solves the technical problems caused by the existing grounding locking device being placed on the operation panel, which requires opening the operation panel before installation, making the installation method complex and difficult to replace, and occupying a large space.

[0054] Preferably, the first mounting plate 2 has a first connecting hole and a second connecting hole; the first connecting hole is connected to the device body 1 by bolts; the second connecting hole is connected to the first electromagnet 3 by bolts. By designing the first mounting plate 2, the first electromagnet 3 can be installed on the device body 1.

[0055] Preferably, the first mounting plate 2 includes: a main plate 4, which serves to bear and support loads; the main plate 4 has several oblong holes 31 and a second circular hole 32; specifically, the oblong holes 31 include two narrow oblong holes 311, which are used to fix the main plate 4 to the device body 1 with bolts; and three wide oblong holes 312, which are used to avoid interference with other connecting bolts; the second circular hole 32 is a reserved hole; the design of the oblong holes 31 facilitates the adjustment of the installation position, adapts to the installation requirements of different equipment, improves the flexibility and adaptability of the device installation, and simplifies the installation process;

[0056] The first connecting plate 5 is connected to the upper right end of the main body plate 4 and is bent forward along the main body plate 4. The first connecting plate 5 has a first circular connecting hole 51. A side plate 6 is also connected to one side of the main body 1 by bolts. The side plate 6 has a through hole that matches the first circular connecting hole 51. The first connecting plate 5 and the side plate 6 are connected by bolts, thereby further fixing the first mounting plate 2 on the main body 1 of the device, increasing the stability of the device and preventing the device from loosening due to operation or vibration.

[0057] The second connecting plate 7 is connected to the middle of the left side of the main body plate 4 and bends backward along the main body plate 4 to provide support and limit, further providing a support structure and facilitating the fixing of the device in multiple directions.

[0058] The third connecting plate 8 is connected to the lower right end of the main plate 4 and bends backward along the main plate 4, with one side of its bent end bending upward to the main plate 4, which serves to provide support and reinforcement.

[0059] The fourth connecting plate 9 is connected to the upper middle part of the main body plate 4. The fourth connecting plate 9 has a third circular connecting hole for connecting with other components or other equipment to enhance the overall structural strength.

[0060] Preferably, a second mounting plate 10 is further provided between the first mounting plate 2 and the main body 1 of the device. The second mounting plate 10 is used to mount the first electromagnet 3. The second mounting plate 10 includes: a square plate 101, which supports the electromagnet and the transition plate 102 and provides a stable base mounting surface; the transition plate 102 connected to the square plate 101, which serves as a connection and transition support; and a strip plate 103 connected to the transition plate 102, which provides an additional support surface to help fix the electromagnet, increase the firmness of the electromagnet installation, and prevent the electromagnet from shifting due to vibration or impact. The square plate 101 and the transition plate 102 are integrally formed; the strip plate 103 is perpendicular to the square plate 101; and the short side of the strip plate 103 is collinear with the bottom plate of the transition plate 102.

[0061] Preferably, it further includes: a third mounting plate 11; the third mounting plate 11 includes: a trapezoidal plate 111, which provides a fixed base for the second electromagnet 14; and a strip plate 112 connected to the trapezoidal plate 111; the trapezoidal plate 111 and the strip plate 112 are provided with a fourth circular connecting hole, which is used to connect the second electromagnet 14 or the device body 1.

[0062] Preferably, the output end of the first electromagnet 3 faces the load switch, and is used to lock the load switch 12 by means of the first electromagnet 3, thereby locking the load switch 12 by means of mechanical action, preventing the load switch from being operated by mistake under high voltage conditions, and ensuring system safety.

[0063] Preferably, a second electromagnet 14 is mounted on the third mounting plate 11. The output end of the second electromagnet 14 faces the grounding switch and is used to lock the grounding switch 13 by means of the second electromagnet 14, preventing the grounding switch from being misoperated under unauthorized circumstances, thereby avoiding accidental grounding.

[0064] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A ring main unit locking device for facilitating installation, characterized in that, The utility model relates to a kind of load switch, comprising: Device body, installed in mechanism room; First mounting plate, with the device body detachable connection; First electromagnet, disposed on the first mounting plate.

2. The ring main unit locking device for easy installation according to claim 1, characterized in that, First connecting hole, second connecting hole are opened on the first mounting plate; The first connecting hole is connected with the device body by bolt; The second connecting hole is connected with the first electromagnet by bolt.

3. The ring main unit locking device for easy installation according to claim 1, characterized in that, The first mounting plate includes: main plate; First connecting plate, with the upper end of the main plate connection, and along the main plate bending to front side; Second connecting plate, with the left side of the main plate middle part connection, and along the main plate bending to back side; Third connecting plate, with the lower end of the main plate connection, and along the main plate bending to back side; Fourth connecting plate, the fourth connecting plate is connected with the position of the upper end middle part of the main plate.

4. The ring main unit locking device for easy installation according to claim 3, characterized in that, First circular connecting hole is opened on the first connecting plate;The main plate is opened with a plurality of waist holes, and second circular hole;Third circular connecting hole is opened on the fourth connecting plate.

5. The ring main unit locking device for easy installation according to claim 3 or 4, characterized in that Second mounting plate is further provided between the first mounting plate and the device body.

6. The ring main unit locking device for easy installation according to claim 5, characterized in that, The second mounting plate includes: square plate, transition plate connected with the square plate, strip-shaped plate connected with the transition plate; The square plate and the transition plate are integrally formed;The strip-shaped plate and the square plate are perpendicular to each other;The short side of the strip-shaped plate is collinear with the bottom plate of the transition plate.

7. The ring main unit locking device for easy installation according to claim 1, characterized in that, Further comprising: Third mounting plate;The third mounting plate includes: trapezoidal plate, strip-shaped plate connected with the trapezoidal plate; Fourth circular connecting hole is opened on the trapezoidal plate and the strip-shaped plate.

8. The ring main unit locking device for easy installation according to claim 7, characterized in that, Second electromagnet is installed on the third mounting plate.

9. The ring main unit locking device for easy installation according to claim 1, characterized in that, The output end of the first electromagnet faces load switch.

10. The ring main unit locking device for easy installation according to claim 8, characterized in that, The output end of the second electromagnet faces ground switch.

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