Enclosed high-voltage cable distribution box

Abstract

The utility model relates to the field of closed cable distribution boxes, and discloses a closed high-voltage cable distribution box, which is characterized by comprising a rain-proof ceiling, a bottom box plate, a front box plate and three side box plates which are correspondingly connected in a sealing manner, a door hole is formed in the front box plate, an access door plate is hinged in the door hole, and a sealing edge strip is arranged on the edge of the access door plate; a plurality of branching ports are formed in the side box plates, vertical guide strips are arranged on the two sides of the edges of the branching ports, limiting bottom supporting strips are connected to the bottoms of the vertical guide strips, and sliding grooves are formed in the sides, facing the branching ports, of the vertical guide strips; each branching port is provided with a plurality of groups of threading pair plates and sealing plates on the inner sides of the side box plates, each threading pair plate comprises a threading bottom plate and a threading top plate which are matched, and the two ends of each threading bottom plate, the two ends of each threading top plate and the two ends of each sealing plate are slidably connected into the corresponding sliding grooves respectively; the top edge of the threading bottom plate and the bottom edge of the threading top plate are respectively provided with a plurality of semicircular wire grooves at intervals, and a plurality of circular wire holes are formed in one group of threading pair plates.

Description

Technical Field

[0001] The utility model relates to the field of enclosed cable distribution boxes, and more specifically, to an enclosed high-voltage cable distribution box. Background Art

[0002] A high-voltage cable distribution box is the main electrical equipment for collecting and tapping cables after they leave the switch cabinet. This product is widely used in urban industrial areas, residential areas, commercial centers, mining areas, and large enterprises such as steel, automotive, petroleum, chemical, and cement industries, as well as other distribution networks. It is particularly suitable for urban power grid renovation projects, which can greatly save the investment in electrical equipment and cables and improve the power supply reliability. In power system engineering, the high-voltage cable distribution box completely solves the problem of a large number of branches in the original distribution network overhead lines in an economical, reliable, and convenient maintenance wiring method. And with its fully insulated characteristics, the line failure rate is greatly reduced, making it the preferred equipment for the cable conversion project of the distribution network.

[0003] A cable distribution box is a device used to tap, branch, connect, and convert circuits of cable lines. Outdoor high-voltage cable distribution boxes are usually used in large-scale power projects. The design of traditional outdoor high-voltage cable distribution boxes is relatively simple and the functions are relatively single. During long-term use, their wiring effect, sealing effect, heat dissipation effect, and safety factor cannot meet the requirements of existing power projects. Content of the Utility Model

[0004] The purpose of the utility model is to provide an enclosed high-voltage cable distribution box, which can realize the enclosure of the high-voltage cable distribution box, and at the same time has a good wiring effect, can facilitate the heat dissipation of the cable body during the operation of the high-voltage cable, and effectively improve the actual safety.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: An enclosed high-voltage cable distribution box includes a rainproof ceiling, a bottom box plate, a front box plate, and three side box plates that are hermetically connected correspondingly;

[0006] A door hole is penetrated through the middle of the front box plate, and an access door plate is hinged in the door hole, and a sealing edge strip is arranged on the edge of the access door plate;

[0007] A number of tapping interfaces are penetrated through the side box plates. Vertical guide bars are respectively arranged on both sides of the edge of each tapping interface. A limiting bottom support bar is connected between the bottoms of the two vertical guide bars, and a sliding groove is arranged on the side of the vertical guide bar facing the tapping interface;

[0008] Each of the sub-ports is configured with several groups of wire threading pair plates and sealing plates on the inner side of the side box plate. The wire threading pair plate includes a matching wire threading bottom plate and a wire threading top plate. The two ends of the wire threading bottom plate, the wire threading top plate, and the sealing plate are respectively slidably connected in the sliding groove. Several semi-circular wire grooves are respectively arranged at intervals along the top edge of the wire threading bottom plate and the bottom edge of the wire threading top plate. Several circular wire holes are arranged in a group of wire threading pair plates.

[0009] As a preferred technical solution of the present invention, a card slot matching the bottom edge of the wire threading bottom plate and the bottom edge of the sealing plate is arranged on the top surface of the limit bottom support bar.

[0010] As a preferred technical solution of the present invention, a pin hole is arranged at the top of the vertical guide bar, a pin rod is arranged in the pin hole, and the bottom end of the pin rod is used to abut against the top edge of the wire threading top plate or the top edge of the sealing plate.

[0011] As a preferred technical solution of the present invention, the distance between the bottom of the door hole and the front box plate is at least 20 cm.

[0012] As a preferred technical solution of the present invention, a lock catch is further arranged between the access door plate and the front box plate.

[0013] As a preferred technical solution of the present invention, the rain shield includes a central shed plate and four identical side extension plates. The central shed plate is a square plate, and the side extension plate is an isosceles trapezoidal plate. The length of the side extension plate corresponding to the upper base of the isosceles trapezoid is equal to the side length of the central shed plate. The edge of the side extension plate corresponding to the upper base of the isosceles trapezoid is fixedly and hermetically connected to one edge of the central shed plate. The adjacent edges of the two adjacent side extension plates are fixedly and hermetically connected, and the included angle between the bottom surfaces of the two adjacent side extension plates is an obtuse angle.

[0014] As a preferred technical solution of the present invention, the top edges of the front box plate and the three side box plates are respectively fixedly and hermetically connected to the center of the bottom surface of the four side extension plates.

[0015] As a preferred technical solution of the present invention, an expansion sealing ring is arranged on the outer side of the edge of the sub-port.

[0016] As a preferred technical solution of the present invention, an elastic sealing strip is arranged on the edge of the semi-circular wire groove.

[0017] As a preferred technical solution of the present invention, the sealing edge strip is a soft sealing rubber strip.

[0018] In summary, the utility model has the following beneficial effects: during actual use, first, according to the type and position of the cable to be tapped, install the corresponding wire-passing bottom plates on each tapping interface. If there are extra tapping interfaces, directly use the sealing plate to block the idle tapping interfaces; then actually perform the tapping and wiring of the high-voltage cable. Place the cable correspondingly on the semi-circular wire grooves until all the cables are connected. Then install the wire-passing top plate and clamp the cable in the circular wire holes. At this time, the tapping interface can be blocked and sealed, and the cable can also connect the inside and outside of the box. Then close the access door panels to achieve the enclosure of the high-voltage cable tapping box. At the same time, there is a gap between each circular wire hole, so that each cable does not fit together and can be separated from each other. The wire splitting effect is good, which can facilitate the heat dissipation of the cable body during the operation of the high-voltage cable and effectively improve the actual safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the utility model;

[0020] Figure 2 is a schematic diagram of the access door panels of the utility model;

[0021] Figure 3 is a schematic diagram of the tapping interface of the utility model;

[0022] Figure 4 is a schematic diagram of the semi-circular wire grooves of the utility model.

[0023] In the figure: 1, rain shelter; 2, front box panel; 3, side box panel; 4, access door panels; 5, tapping interface; 6, vertical guide bar; 7, limit bottom support bar; 8, sealing plate; 9, wire-passing bottom plate; 10, wire-passing top plate; 11, semi-circular wire grooves; 12, pin rod; 13, lock; 14, side extension plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] To make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the utility model. Therefore, the detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents the selected embodiments of the utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the utility model without creative efforts shall fall within the protection scope of the utility model.

[0025] Such as Figures 1-4As shown, the utility model provides a closed high-voltage cable distribution box, comprising a rainproof roof 1, a bottom box plate, a front box plate 2 and three side box plates 3 which are correspondingly sealed and connected;

[0026] like Figure 2 As shown, a door hole is provided through the middle of the front box panel 2, and an inlet and outlet door panel 4 is hinged in the door hole. The edges of the inlet and outlet door panel 4 are provided with sealing edge strips. When the inlet and outlet door panel 4 is closed, the interior of the high-voltage cable junction box is closed; the distance between the bottom of the door hole and the front box panel 2 is at least 20 cm, which can reduce the possibility of accumulated water entering the interior of the box through the door hole when used outdoors; a lock 13 is also provided between the inlet and outlet door panel 4 and the front box panel 2, which is used to lock the inlet and outlet door panel 4 from the outside, so that only the staff holding the key can open the inlet and outlet door panel 4 and process the wiring of the devices inside the high-voltage cable junction box.

[0027] like Figure 3 As shown, a plurality of branch interfaces 5 are provided through the side box plate 3, such as Figure 4 As shown, vertical guide bars 6 are respectively provided on both sides of the edge of each tapping interface 5, a limited bottom support bar 7 is connected between the bottoms of the two vertical guide bars 6, and a sliding groove is provided on one side of the vertical guide bar 6 facing the tapping interface 5;

[0028] like Figure 1 As shown, each branch interface 5 is configured with several groups of threading plates and sealing plates 8 on the inner side of the side box plate 3. The threading plates include matching threading bottom plates 9 and threading top plates 10. The two ends of the threading bottom plates 9, the threading top plates 10 and the sealing plates 8 are respectively slidably connected in the sliding grooves; the top surface of the limiting bottom support bar 7 is provided with a card groove matching the bottom edge of the threading bottom plate 9 and the bottom edge of the sealing plate 8, which facilitates the stable placement and connection of the threading bottom plate 9 and the air outlet plate.

[0029] The vertical guide bar 6 is used to install the threading bottom plate 9, the threading top plate 10 and the sealing plate 8. When actually used, the connection can be completed by sliding the vertical guide bar 6 downward from the upper opening and inserting it.

[0030] A plurality of semicircular wire grooves 11 are arranged at intervals on the top edge of the wire threading bottom plate 9 and the bottom edge of the wire threading top plate 10, and a plurality of circular wire holes are arranged in a group of wire threading plates. Generally, the wire threading plates are also provided with wire hole plugs. When the circular wire holes are not in use, the circular wire holes are blocked with wire hole plugs to achieve closure inside and outside the box.

[0031] like Figure 4 As shown, a pin hole is provided at the top of the vertical guide bar 6, and a pin rod 12 is provided in the pin hole. The bottom end of the pin rod 12 is used to abut against the top edge of the threading top plate 10 or the top edge of the sealing plate 8, so as to fix the threading plate or the sealing plate 8 to prevent the cable from stretching the wire hole and destroying the sealing state.

[0032] The working principle, usage process and technical advantages of the enclosed high-voltage cable distribution box of the present utility model are as follows: During actual use, first, according to the cable type and position to be tapped, install the corresponding wire-passing bottom plates 9 at each tapping interface 5. If there are extra tapping interfaces 5, directly use the sealing plate 8 to block the idle tapping interfaces 5; then actually perform the tapping and wiring of the high-voltage cable, place the cables correspondingly on the semi-circular wire grooves 11 until all the cables are connected, and then install the wire-passing top plate 10 to clamp the cables in the circular wire holes. At this time, the tapping interface 5 can be blocked and sealed, and the cables can also communicate inside and outside the box body. Then close the access door panel 4 to achieve the enclosure of the high-voltage cable distribution box. At the same time, there is a gap between each circular wire hole, so that each cable does not fit together and can be separated from each other, with good wire splitting effect, which can facilitate the heat dissipation of the cable body during the operation of the high-voltage cable and effectively improve the actual safety.

[0033] As an embodiment of the present utility model, the rain shield 1 includes a central shed plate and four identical side extension plates 14. The central shed plate is a square plate, and the side extension plates 14 are isosceles trapezoidal plates. The side length corresponding to the upper base of the isosceles trapezoid of the side extension plate 14 is equal to the side length of the central shed plate. The edge corresponding to the upper base of the isosceles trapezoid of the side extension plate 14 is fixedly and hermetically connected to one edge of the central shed plate. The adjacent edges of the two adjacent side extension plates 14 are fixedly and hermetically connected, and the bottom angle between the two adjacent side extension plates 14 is an obtuse angle. The top edges of the front box plate 2 and the three side box plates 3 are respectively fixedly and hermetically connected to the center of the bottom surfaces of the four side extension plates 14. It can shield rain for the front side plate and the side box plates 3, thus doing a good job in waterproofing at the place where the box body is connected to the outside.

[0034] As an embodiment of the present utility model, an expansion sealing ring is arranged on the outer side of the edge of the tapping interface 5; an elastic sealing strip is arranged on the edge of the semi-circular wire groove 11; the sealing edge strip is a soft sealing rubber strip, which ensures the enclosure inside the overall high-voltage cable distribution box, thereby providing more perfect protection for the internal components. The above is only the preferred embodiment of the present utility model and is not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications; any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A closed-type high-voltage cable distribution box, characterized in that: It includes a rain - proof ceiling (1), a bottom box plate, a front box plate (2) and three side box plates (3) which are hermetically connected correspondingly; A door hole is penetrated and arranged in the middle of the front box plate (2), a door panel (4) is hinged in the door hole, and a sealing edge strip is arranged on the edge of the door panel (4); A number of branch interfaces (5) are penetrated and arranged on the side box plate (3). Vertical guide bars (6) are respectively arranged on both sides of the edge of each branch interface (5). A limit bottom support bar (7) is connected between the bottoms of the two vertical guide bars (6). A sliding groove is arranged on the side of the vertical guide bar (6) facing the branch interface (5); A number of groups of wire - threading pair plates and sealing plates (8) are configured inside the side box plate (3) for each branch interface (5). The wire - threading pair plate includes a matching wire - threading bottom plate (9) and a wire - threading top plate (10). The two ends of the wire - threading bottom plate (9), the wire - threading top plate (10) and the sealing plate (8) are respectively slidably connected in the sliding groove; A number of semi - circular wire grooves (11) are respectively arranged at intervals on the top edge of the wire - threading bottom plate (9) and the bottom edge of the wire - threading top plate (10). A number of circular wire holes are arranged in a group of wire - threading pair plates.

2. The enclosed high-voltage cable distribution box according to claim 1, characterized in that: A clamping groove matching with the bottom edge of the wire - threading bottom plate (9) and the bottom edge of the sealing plate (8) is arranged on the top surface of the limit bottom support bar (7).

3. A closed-type high-voltage cable distribution box according to claim 2, characterized in that: A pin hole is arranged at the top of the vertical guide bar (6), and a pin rod (12) is arranged in the pin hole. The bottom end of the pin rod (12) is used to abut against the top edge of the wire - threading top plate (10) or the top edge of the sealing plate (8).

4. A closed-type high-voltage cable distribution box according to claim 3, characterized in that: The distance between the bottom of the door hole and the front box plate (2) is at least 20 cm.

5. The enclosed high-voltage cable distribution box according to claim 4, characterized in that: A lock catch (13) is also arranged between the door panel (4) and the front box plate (2).

6. The enclosed high-voltage cable sectionalizer according to claim 5, characterized in that: The rain - proof ceiling (1) includes a central ceiling plate and four identical side - extending edge plates (14). The central ceiling plate is a square plate, the side - extending edge plates (14) are isosceles trapezoid plates. The length of the side corresponding to the upper base of the isosceles trapezoid of the side - extending edge plate (14) is equal to the side length of the central ceiling plate. The edge corresponding to the upper base of the isosceles trapezoid of the side - extending edge plate (14) is fixedly and hermetically connected to one edge of the central ceiling plate. The adjacent edges of the two adjacent side - extending edge plates (14) are fixedly and hermetically connected. The included angle between the bottom surfaces of the two adjacent side - extending edge plates (14) is an obtuse angle.

7. The enclosed high-voltage cable distribution box according to claim 6, characterized in that: The top edges of the front box plate (2) and the three side box plates (3) are respectively fixedly and hermetically connected to the center of the bottom surfaces of the four side - extending edge plates (14).

8. A closed high-voltage cable tapping box according to claim 7, characterized in that: An expansion sealing ring is arranged on the outer side of the edge of the branch interface (5).

9. A closed-type high-voltage cable distribution box according to claim 8, characterized in that: An elastic sealing strip is arranged on the edge of the semi - circular wire groove (11).

10. A closed-type high-voltage cable distribution box according to claim 9, characterized in that: The sealing edge strip is a soft sealing rubber strip.

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