Intelligent grounding box for cable tunnel

Abstract

The invention relates to the technical field of cable line protection and monitoring, in particular to a cable tunnel intelligent grounding box which comprises a box body, an electric appliance assembly and a copper bar. A groove frame is arranged on the side wall of the inner side of the box body, the length direction of a groove of the groove frame is perpendicular to the bottom face of the box body, and a supporting frame is arranged on the bottom face of the box body. The electric appliance assembly comprises insulating plates and a supporting rod, the two ends of the supporting rod are clamped to the insulating plates at the two ends respectively, the insulating plates are inserted into a groove frame on the inner wall of the box body, a containing space is formed between the insulating plates at the two ends, and the outer sides of the insulating plates at the two ends are used for installing electric appliance elements. And the copper bar is positioned in the accommodating space and is arranged on a support frame on the bottom surface of the box body. Through adoption of the drawable intelligent electric appliance assembly, rapid expansion and maintenance of components are realized.

Description

Technical Field

[0001] The invention relates to the technical field of cable line protection and monitoring, and in particular to an intelligent grounding box for a cable tunnel. Background Art

[0002] In order to limit the induced voltage and fault overvoltage on the metal sheath of the power cable and avoid the formation of large circulating currents in the sheath, one end of the cable metal sheath is directly grounded, and the other end must be grounded through a protector. For longer lines, the sheath is insulated in sections, and the sheaths at the sections are cross-connected and grounded through a protector. Therefore, the grounding box is an extremely important equipment in the cable line and operation, and it is also the best monitoring point in a line. The sheath current, sheath voltage, temperature and humidity in the box are all important objects that need to be measured, controlled and analyzed, and they are also basic data related to the safe operation of the cable.

[0003] At present, most grounding boxes on the market use fixed intelligent electrical components. For example, in the Chinese patented digital display intelligent grounding box, the electrical components are installed centrally on the upper part of the box. When function expansion or maintenance is required, the entire box often needs to be disassembled, which not only increases the difficulty of maintenance, but also reduces efficiency. Summary of the invention

[0004] In view of the deficiencies in the prior art, an embodiment of the present invention aims to provide an intelligent grounding box for a cable tunnel, which realizes rapid expansion and maintenance of components by adopting a retractable intelligent electrical component.

[0005] In order to achieve the above objectives, the embodiments of the present invention provide the following technical solutions:

[0006] A cable tunnel intelligent grounding box, comprising: a box body, an electrical component and a copper busbar; a slot frame is arranged on the side wall inside the box body, the length direction of the groove of the slot frame is perpendicular to the bottom surface of the box body, and a support frame is arranged on the bottom surface of the box body; the electrical component comprises an insulating plate and a support rod, the two ends of the support rod are respectively clamped on the insulating plates at the two ends, the insulating plates are inserted into the slot frame on the inner wall of the box body, and an accommodating space is formed between the insulating plates at the two ends, and the outer sides of the insulating plates at the two ends are used for installing electrical components; the copper busbar is located in the accommodating space and is installed on the support frame on the bottom surface of the box body.

[0007] Optionally, the slot frame is a U-shaped structure, the slot bottom of the slot frame is installed on the side wall of the box body, and the opening of the slot frame faces the inner side of the box body.

[0008] Optionally, eight slot frames are provided, with four slot frames provided on each of the front and rear side walls of the box body, and the four slot frames are arranged in a rectangular shape. One side of each insulating board is inserted into two slot frames, and a locking piece is provided on the upper slot frame, and the locking piece passes through the slot frame and the insulating board to fix the insulating board and the slot frame.

[0009] Optionally, the support frame is a U-shaped structure, the opening of the support frame faces the bottom surface of the box body, two support frames are provided, and the two ends of the copper busbar are detachably mounted on the two support frames.

[0010] Optionally, a box cover is arranged on the top of the box body, the box cover and the box body are detachably mounted, and a transparent plate is arranged in the middle of the box cover.

[0011] Optionally, the two insulating plates are connected by three support rods, which include two first support rods and one second support rod, the two first support rods are located at two diagonal corners of the insulating plates, and the second support rod is located at the top corner of the insulating plates.

[0012] Optionally, a card slot is provided at the bottom or top of the first support rod, and a first socket is provided on the diagonal of the insulating plate. The first support rod is inserted into the first socket of the insulating plate, and the card slot of the first support rod is connected to the insulating plate. A first plug-in block is installed on the back side of the card slot of the first support rod, and the first plug-in block is L-shaped, and the L-shaped first support rods at both ends are symmetrically arranged.

[0013] Optionally, a card slot is provided on the inner side of the second support rod, and a second socket is provided on the top corner of the insulating plate. The second support rod is inserted into the second socket of the insulating plate, and the card slot of the second support rod is connected to the insulating plate. A second plug-in block is installed on the back side of the card slot of the second support rod. The second plug-in block is in the shape of a long strip and can be detachably installed on the second support rod.

[0014] Optionally, a first mounting groove and a second mounting groove are provided on the back side of the second support rod, a lighting lamp is installed at the first mounting groove, a display is installed at the second mounting groove, and a wire groove is provided on the top of the second support rod.

[0015] Optionally, a battery is arranged on the right side of the right insulating plate, and an RTU controller, a temperature and humidity sensor, and a current transformer are arranged on the left side of the left insulating plate.

[0016] One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

[0017] The intelligent grounding box of the cable tunnel includes a box body, electrical components and copper busbars. The box body is used to protect the electrical components and copper busbars inside. A slot frame is provided on the inner side of the box body. The length direction of the slot frame groove is perpendicular to the bottom surface of the box body, providing a basis for installing and fixing the electrical components. A support frame is provided on the bottom surface of the box body to support the copper busbar to ensure its stability. The electrical components are composed of insulating plates and support rods. The two ends of the support rods are respectively clamped on the insulating plates at both ends to form a structural support. The insulating plate is installed in the slot frame for easy installation and disassembly, and the space between the two insulating plates is used to accommodate electrical components, thereby forming a high- and low-voltage area isolation. The copper busbar is installed on the support frame, located in the accommodation space, for grounding connection to ensure the safety of the cable system. Through reasonable layout, the electrical components in the grounding box are separated from the high-voltage area by the insulating plate to form a separate area. The electrical components can be pulled out and maintained separately, ensuring the safety and convenience of maintenance.

[0018] Advantages of additional aspects of the present invention will be given in the following description, and in part will become obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 is a schematic diagram of the appearance of a grounding box provided in an embodiment of the present invention;

[0021] Figure 2 is a schematic diagram of the interior of a box provided by an embodiment of the present invention;

[0022] Figure 3 is a half-section schematic diagram of a box provided by an embodiment of the present invention;

[0023] Figure 4 is a schematic diagram of an electrical component from a first perspective provided by an embodiment of the present invention;

[0024] Figure 5 is a schematic diagram of an electrical component from a second viewing angle provided by an embodiment of the present invention;

[0025] Figure 6 is a cross-sectional view of the connection position between the first support rod and the insulating plate provided by an embodiment of the present invention;

[0026] Figure 7 is a cross-sectional view of the connection position between the second support rod and the insulating plate provided by an embodiment of the present invention;

[0027] Figure 8 is a schematic diagram of an insulation board provided by an embodiment of the present invention;

[0028] Fig. 9 is a schematic diagram of a copper busbar provided in an embodiment of the present invention;

[0029] In the figure: 1, box body; 11, slot frame; 12, locking piece; 13, support frame; 2, box cover; 21, transparent plate; 3, copper busbar; 4, electrical components; 41, insulating plate; 411, first socket; 412, second socket; 42, first support rod; 43, second support rod; 44, wire trough; 45, lighting; 46, display; 47, first plug-in block; 48, second plug-in block; 5, battery; 6, RTU controller; 7, temperature and humidity sensor; 8, current transformer;

[0030] In order to show the positions of various parts, the distances or sizes between them are exaggerated and the schematic diagram is for reference only. DETAILED DESCRIPTION

[0031] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meanings as those commonly understood by those of ordinary skill in the art to which the present invention belongs. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0032] As described in the background technology, the existing grounding box has the following technical problems:

[0033] 1. The non-expandability of intelligent electrical components limits the functional expansion of the grounding box, so that when new functions need to be added, the entire box must be replaced.

[0034] 2. Smart electrical components are usually fixed inside the box and are not easy to remove, making maintenance and replacement of components inconvenient.

[0035] In order to solve the above technical problems, the present invention proposes an intelligent grounding box for a cable tunnel. Figure 1 , Figure 2 As shown, the grounding box includes a box body 1, an electrical component 4 and a copper bus 3. Figure 3 As shown, a slot frame 11 is provided on the inner side wall of the box body 1, and the length direction of the groove of the slot frame 11 is perpendicular to the bottom surface of the box body 1, and a support frame 13 is provided on the bottom surface of the box body 1; Figure 4 , Figure 5As shown, the electrical component 4 includes an insulating plate 41 and a support rod, the two ends of the support rod are respectively clamped on the insulating plates 41 at the two ends, the insulating plates 41 are inserted into the slot frame 11 on the inner wall of the box body 1, and an accommodating space is formed between the insulating plates 41 at the two ends, and the outer sides of the insulating plates 41 at the two ends are used to install electrical components; the copper bus 3 (such as Fig. 9 As shown) is located in the accommodating space and is installed on the support frame 13 on the bottom surface of the box body 1.

[0036] In this embodiment, the intelligent grounding box of the cable tunnel includes a box body 1, an electrical component 4 and a copper busbar 3, and the box body 1 is used to protect the electrical component 4 and the copper busbar 3 inside. A slot frame 11 is provided on the inner side of the box body 1, and the length direction of the groove of the slot frame 11 is perpendicular to the bottom surface of the box body 1, providing a basis for installing and fixing the electrical component 4. A support frame 13 is provided on the bottom surface of the box body 1 to support the copper busbar 3 to ensure its stability. The electrical component 4 is composed of an insulating plate 41 and a support rod, and the two ends of the support rod are respectively clamped on the insulating plates 41 at both ends to form a structural support. The insulating plate 41 is installed in the slot frame 11 for easy installation and disassembly, and the space between the two insulating plates 41 is used to accommodate electrical components, thereby forming a high and low voltage area isolation. The copper busbar 3 is installed on the support frame 13, located in the accommodating space, for grounding connection to ensure the safety of the cable system. Through reasonable layout, the electrical component 4 in the grounding box is separated from the high voltage area by the insulating plate 41 to form a separate area, and the electrical component 4 can be withdrawn and maintained separately, ensuring the safety and convenience of maintenance.

[0037] The slot frame 11 is a U-shaped structure, the bottom of the slot frame 11 is installed on the side wall of the box body 1, and the opening of the slot frame 11 faces the inside of the box body 1. This design of the slot frame 11 facilitates the installation of the electrical components 4, especially the plugging process of the insulating plate 41 is smoother and more stable. In addition, the U-shaped slot frame 11 has strong structural stability and anti-deformation ability, ensuring that it is not easy to deform or displace during use, thereby improving the reliability of the entire cable tunnel intelligent grounding box.

[0038] There are eight slot frames 11, four slot frames 11 are respectively arranged on the front and rear side walls of the box body 1, and the four slot frames 11 are arranged in a rectangular shape. One side of each insulating plate 41 is inserted into two slot frames 11, and a locking piece 12 is arranged on the upper slot frame 11, and the locking piece 12 passes through the slot frame 11 and the insulating plate 41 to fix the insulating plate 41 and the slot frame 11. Through such a design, the insulating plate 41 can be made more stable in the box body 1 and not easy to loosen. At the same time, the locking piece 12 is installed on the upper slot frame 11, and the locking piece 12 passes through the slot frame 11 and the insulating plate 41 to tightly fix the two, thereby ensuring the accurate position of the insulating plate 41 and reducing the looseness caused by vibration or other factors. Through the improvement of this structure, the safety and reliability of the electrical component 4 can be further improved.

[0039] The support frame 13 is a U-shaped structure, the opening of the support frame 13 faces the bottom surface of the box body 1, and two support frames 13 are provided. The two ends of the copper bar 3 are detachably mounted on the two support frames 13. This design makes the installation and removal of the copper bar 3 more convenient, and is easy to repair and replace. In addition, the design of the U-shaped support frame 13 effectively enhances the support strength of the copper bar 3, ensuring the stability and shock resistance of the copper bar 3 when carrying current.

[0040] like Figure 1 As shown, a box cover 2 is provided on the top of the box body 1, and the box cover 2 and the box body 1 are detachably mounted, and a transparent plate 21 (glass cover) is provided in the middle of the box cover 2. The detachable connection facilitates the maintenance and inspection of the equipment. A transparent plate 21 is provided in the middle of the box cover 2, through which the operation inside the box body 1 can be observed, avoiding frequent opening of the box cover 2 for inspection. This design not only improves the convenience of maintenance, but also can realize real-time monitoring of the operation status of the electrical components 4 without affecting the sealing of the box body 1.

[0041] like Figure 4 As shown, two insulating plates 41 are connected by three supporting rods, including two first supporting rods 42 and one second supporting rod 43. The two first supporting rods 42 are located at two diagonal corners of the insulating plate 41, and the second supporting rod 43 is located at the top corner of the insulating plate 41. The distribution position of the three supporting rods helps to improve the strength and stability of the overall structure, ensuring that it is not easy to deform or move in long-term use, and can reserve space to effectively avoid interference with cables, while facilitating disassembly.

[0042] The insulating plate 41 is provided with a first socket 411 (such as Figure 8 As shown), the bottom or top of the first support rod 42 is provided with a slot (as shown Figure 6 As shown in the figure, the first support rod 42 penetrates into the first socket 411 of the insulating plate 41, and the slot of the first support rod 42 is connected to the insulating plate 41. A first plug-in block 47 is installed on the back of the slot of the first support rod 42. The first plug-in block 47 is L-shaped, and the L-shaped first support rods 42 at both ends are symmetrically arranged. Through this design, the connection between the first support rod 42 and the insulating plate 41 is achieved, and the positioning of the insulating plate 41 can be effectively enhanced, so that it is not easy to shift during installation and use. In addition, the setting of the L-shaped plug-in block structure also improves the anti-twisting ability of the entire component and ensures the stability of the equipment.

[0043] like Figure 7As shown, a slot is provided inside the second support rod 43, a second socket 412 is provided on the top corner of the insulating plate 41, the second support rod 43 penetrates into the second socket 412 of the insulating plate 41, and the slot of the second support rod 43 is connected to the insulating plate 41, and a second plug-in block 48 is installed on the back of the slot of the second support rod 43, the second plug-in block 48 is long and can be detachably installed on the second support rod 43. This design can facilitate the assembly of the electrical component 4, and the use of the long plug-in block can provide a larger area of ​​support force, further improving the stability of the insulating plate 41.

[0044] like Figure 4 , Figure 5 As shown, the back of the second support rod 43 is provided with a first mounting groove and a second mounting groove, the first mounting groove is provided with a lighting lamp 45, the second mounting groove is provided with a display 46, and the top of the second support rod 43 is provided with a wire groove 44. This design provides an intelligent monitoring function for the intelligent grounding box in the cable tunnel, can provide lighting in a dark environment, and the display 46 can display the operating status of the device in real time. The wire groove 44 on the top of the support rod can be used to arrange cables to avoid the cables being scattered and affecting operation and maintenance.

[0045] A battery 5 is arranged on the right side of the right insulating plate 41, and an RTU controller 6, a temperature and humidity sensor 7, and a current transformer 8 are arranged on the left side of the left insulating plate 41. These electrical components can monitor the temperature, humidity, current and other parameters inside the equipment in real time, and realize automatic control and alarm functions through the RTU controller 6.

[0046] The grounding box has a high degree of integration and integrates functions such as intelligent display, Bluetooth connection, and remote operation. When you need to expand the measurement data, you can directly pull out the drawer to replace or upgrade the internal components. When you need to measure the ambient temperature, you can take out the electrical component 4, connect the temperature and humidity sensor 7, and reinsert it. When you need ambient humidity, air composition or other functions, you can do the same.

[0047] In actual installation applications, the cable sheath is connected to the built-in copper busbar 3 in the grounding box 1, and the signal is collected through the mutual inductor and connected to the RTU controller 6. After the signal is processed, the status and alarm information are displayed in real time on the LCD display, and observation can be achieved through the transparent cover.

[0048] In summary, the grounding box realizes rapid expansion and maintenance of components by adopting a retractable intelligent electrical component 4. This design not only improves the integration of the grounding box, but also realizes intelligent display and remote operation by integrating functions such as LCD display and Bluetooth connection. In addition, the design of the transparent cover makes the observation of the internal status more intuitive, and the intelligent electrical component 4 is separated from the high-voltage area by an insulating plate 41, ensuring the safety and convenience of maintenance. Through these innovations, the functionality, safety and maintenance efficiency of the cable tunnel grounding box are improved.

[0049] Although the above describes the specific implementation mode of the present invention in conjunction with the accompanying drawings, it is not intended to limit the scope of protection of the present invention. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art on the basis of the technical solution of the present invention without creative work are still within the scope of protection of the present invention.

Claims

1. A cable tunnel intelligent grounding box, characterized in that: include: Box, electrical components and copper busbars; A groove frame is arranged on the side wall inside the box body, the groove length direction of the groove frame is perpendicular to the bottom surface of the box body, and a support frame is arranged on the bottom surface of the box body; The electrical component comprises an insulating plate and a support rod, the two ends of the support rod are respectively clamped on the insulating plates at the two ends, the insulating plates are inserted into the slots on the inner wall of the box body, and an accommodating space is formed between the insulating plates at the two ends, and the outer sides of the insulating plates at the two ends are used to install electrical components; The copper busbar is located in the accommodating space and is installed on a support frame on the bottom surface of the box body.

2. The intelligent grounding box for a cable tunnel as claimed in claim 1, characterized in that: The slot frame is a U-shaped structure, the slot bottom of the slot frame is installed on the side wall of the box body, and the opening of the slot frame faces the inner side of the box body.

3. The intelligent grounding box for cable tunnel according to claim 2, characterized in that: There are eight slot frames, four of which are arranged on the front and rear side walls of the box respectively, and the four slot frames are arranged in a rectangular shape. One side of each insulating board is inserted into two slot frames, and a locking piece is arranged on the upper slot frame, and the locking piece passes through the slot frame and the insulating board to fix the insulating board and the slot frame.

4. The intelligent grounding box for a cable tunnel as claimed in claim 1, characterized in that: The support frame is a U-shaped structure, the opening of the support frame faces the bottom surface of the box body, two support frames are provided, and the two ends of the copper busbar are detachably mounted on the two support frames.

5. The intelligent grounding box for cable tunnel according to claim 1, characterized in that: A box cover is arranged on the top of the box body, the box cover and the box body are detachably mounted, and a transparent plate is arranged in the middle of the box cover.

6. The intelligent grounding box for cable tunnel according to claim 1, characterized in that: The two insulating plates are connected by three support rods, which include two first support rods and one second support rod. The two first support rods are located at two diagonal corners of the insulating plates, and the second support rod is located at the top corner of the insulating plates.

7. The intelligent grounding box for a cable tunnel as claimed in claim 6, characterized in that: A card slot is provided at the bottom or top of the first support rod, and a first socket is provided on the diagonal of the insulating plate. The first support rod is inserted into the first socket of the insulating plate, and the card slot of the first support rod is connected to the insulating plate. A first plug-in block is installed on the back side of the card slot of the first support rod, and the first plug-in block is L-shaped, and the L-shaped first support rods at both ends are symmetrically arranged.

8. The intelligent grounding box for a cable tunnel as claimed in claim 6, characterized in that: A card slot is provided on the inner side of the second support rod, and a second socket is provided on the top corner of the insulating plate. The second support rod is inserted into the second socket of the insulating plate, and the card slot of the second support rod is connected to the insulating plate. A second plug-in block is installed on the back side of the card slot of the second support rod. The second plug-in block is in the shape of a long strip and can be detachably installed on the second support rod.

9. The intelligent grounding box for a cable tunnel as claimed in claim 8, characterized in that: A first mounting groove and a second mounting groove are arranged on the back side of the second support rod, a lighting lamp is installed at the first mounting groove, a display is installed at the second mounting groove, and a wire groove is arranged on the top of the second support rod.

10. The intelligent grounding box for a cable tunnel according to claim 1, characterized in that: A battery is arranged on the right side of the right insulating plate, and an RTU controller, a temperature and humidity sensor, and a current transformer are arranged on the left side of the left insulating plate.

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