Waterproof buried cable branch box

Abstract

The utility model discloses a waterproof type buried cable branch box relates to cable laying technical field, including the ground -buried box, both sides of ground -buried box are fixedly connected with the threading drum, the threading drum is connected with the inside communication of ground -buried box, the upper end of threading drum all is equipped with the pouring hole in the middle, the upper end fixedly connected with the sealing boss of ground -buried box, the lower edge is fixedly connected with sealing boss lower extreme, the upper end of ground -buried box still is equipped with the sealing assembly of cooperation to the sealing of ground -buried box opening, the utility model discloses adopt the ground -buried type installation, need not occupy the surface space, can directly embed the underground layout, in the photovoltaic field area, the wind power collection circuit etc.

Description

Technical Field

[0001] The utility model relates to the technical field of cable laying, and specifically relates to a waterproof underground cable distribution box. Background Technique

[0002] A cable distribution box is a core device in the power distribution network used to achieve cable connection, branching, and transfer. It mainly solves the "shunt" and "continuation" requirements during the transmission of cable lines and is an important link to ensure the flexible, efficient, and safe operation of the power distribution system. It is widely used in the medium and low voltage distribution fields.

[0003] Currently, an existing cable distribution box, such as a split-type cable distribution box proposed in the authorized announcement number CN223261261U, includes a cable distribution box main body. A movable door is hinged to the upper surface of the cable distribution box main body. An installation plate is fixedly installed on the inner wall of the cable distribution box main body. An installation groove is opened on the front surface of the installation plate. Through the cooperative setting of the installation plate, installation groove, through hole, chute, slider, button, installation block, groove, spring, limit block, and connector, the effect of being able to conveniently disassemble and install the connector is achieved.

[0004] However, the above cable distribution box is only suitable for ground installation. In scenarios with tight land use such as photovoltaic power generation areas and wind power collection lines, the distribution boxes installed on the ground will additionally occupy land resources and further exacerbate the land use pressure. Especially in wind power projects in mountainous forest areas, the supporting cables of traditional ground-mounted cable distribution boxes usually adopt the ground laying method synchronously. This not only damages the original vegetation in the forest area, but the distribution box itself is also easily damaged by the impact of fallen trees in the forest area and the impact of falling rocks in the mountains. In view of the above problems, this solution proposes a waterproof underground cable distribution box. Content of the Utility Model

[0005] The purpose of the utility model is to provide a waterproof underground cable distribution box to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A waterproof underground cable distribution box includes a buried box body. Both sides of the buried box body are fixedly connected with threading cylinders. The threading cylinders are internally connected to the buried box body. Pouring holes are opened in the middle of the upper ends of the threading cylinders. A sealing boss is fixedly connected to the upper end of the buried box body. A lower edge is fixedly connected to the lower end of the sealing boss. A sealing component is also provided on the upper end of the buried box body to cooperate with the sealing boss to seal the opening of the buried box body. A wiring board is fixedly connected to the middle of the inside of the buried box body. Wiring components are provided on the wiring board.

[0008] As a further embodiment of this utility model: both ends of the buried box are fixedly connected to mounting plates located below the cable tray, and mounting holes are provided on both sides of the mounting plates.

[0009] As a further embodiment of this utility model: the sealing assembly includes a sealing cover, the edge of which is fixedly connected to an upper edge, and several through holes are provided on both the upper and lower edges, with bolts installed between the through holes on the upper and lower edges.

[0010] As a further improvement of this utility model, a sealing gasket is affixed to the position where the upper surface of the sealing boss contacts the upper surface of the inner end of the sealing cover.

[0011] As a further embodiment of this utility model: the wiring assembly includes an L-shaped sliding strip and a hollow connector. The L-shaped sliding strip is fixedly connected to one side of the wiring board, and a hollow box is fixedly connected to the other side of the wiring board. A sliding block is fixedly connected to the lower end face of the hollow connector. A limiting protrusion that slides in conjunction with the groove of the L-shaped sliding strip is fixedly connected to one end of the sliding block. The sliding block is slidably connected between the hollow box and the L-shaped sliding strip. A conductive component is provided inside the hollow connector, and a locking component for locking the position of the sliding block is provided inside the hollow box.

[0012] As a further embodiment of this utility model: the conductive component includes a copper conductor, which is fixedly connected inside the hollow connector. Both ends of the hollow connector are provided with wiring ports, and the copper conductor is provided with wiring terminals at the wiring ports.

[0013] As a further embodiment of this utility model: the locking component includes a U-shaped slide, which is slidably connected to the side of the hollow box away from the L-shaped sliding strip. An inner slide plate is fixedly connected to the position where the U-shaped slide plate enters the hollow box. Several locking pins are fixedly connected to the inner slide plate. The locking pins are slidably connected to the hollow box. Springs are provided between both ends of the inner slide plate and the inner wall of the hollow box away from the locking pins. A locking hole that cooperates with the locking pins is opened on the side of the sliding strip block near the hollow box.

[0014] As a further improvement of this utility model, the hollow connector is made of insulating material.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model adopts underground installation, which does not require the occupation of surface space and can be directly embedded underground. In scenarios where land resources are scarce, such as photovoltaic fields and wind power collection lines, it can effectively avoid the occupation of surface working space by traditional ground-mounted branch boxes, reducing land pressure. At the same time, in wind power projects in mountainous areas, the supporting cables can be laid underground simultaneously through underground installation. After laying, ground vegetation can be restored, reducing the impact on the ecology. Moreover, the underground design can effectively avoid damage from fallen trees or falling rocks.

[0017] 2. This utility model allows for the injection of sealant into the cable conduit after cable laying via an injection hole, thus sealing the conduit. Simultaneously, the sealing cap, in conjunction with the sealing gasket, seals the opening at the top of the buried box, achieving efficient waterproofing, preventing the intrusion of underground moisture and corrosive gases, and extending the service life of the internal components of the buried box. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the internal structure of the buried box in this utility model.

[0020] Figure 3 This is a schematic diagram of the sealing cap in this utility model.

[0021] Figure 4 This is a schematic diagram of the wiring assembly in this utility model.

[0022] Figure 5 In this utility model Figure 1 A magnified structural diagram at point A.

[0023] Figure 6 This is a cross-sectional structural diagram of the hollow connector in this utility model.

[0024] Figure 7 This is a schematic diagram of the internal structure of the hollow box in this utility model.

[0025] The components include: 1. Buried enclosure; 2. Sealing cover; 3. Filling hole; 4. Mounting plate; 5. Cable guide; 6. Terminal block; 7. Sealing gasket; 8. Hollow connector; 9. Lower edge; 10. Sealing boss; 11. Terminal block; 12. U-shaped carriage; 13. Hollow box; 14. L-shaped sliding bar; 15. Sliding bar block; 16. Bolt; 17. Upper edge; 18. Limiting protrusion; 19. Copper conductor; 20. Wiring port; 21. Locking hole; 22. Locking pin; 23. Spring; 24. Inner sliding plate. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1 In this embodiment of the utility model, a waterproof underground cable branch box includes an underground box body 1. Both ends of the underground box body 1 are fixedly connected to mounting plates 4 below the cable tube 5. Mounting holes are provided on both sides of the mounting plates 4.

[0028] Please see Figures 1-2 Both sides of the buried box 1 are fixedly connected to a cable reel 5. The cable reel 5 is connected to the interior of the buried box 1. The upper end of the cable reel 5 is provided with a filling hole 3. The upper end of the buried box 1 is fixedly connected to a sealing boss 10. The lower end of the sealing boss 10 is fixedly connected to a lower edge 9. When sealing the cable reel 5 with glue, the two ends of the cable reel 5 are first sealed with a foaming agent and the cable inserted into the cable reel 5 is fixed. Then, the sealant is injected into the inside of the cable reel 5 through the filling hole 3, thereby achieving the sealing of the cable reel 5.

[0029] Please see Figure 2 , Figure 3 and Figure 5 The upper end of the buried enclosure 1 is also provided with a sealing assembly that cooperates with the sealing boss 10 to seal the opening of the buried enclosure 1. The sealing assembly includes a sealing cover 2. The edge of the sealing cover 2 is fixedly connected to an upper edge 17. Several through holes are opened on both the upper edge 17 and the lower edge 9. Bolts 16 are installed between the through holes on the upper edge 17 and the through holes on the lower edge 9. A sealing gasket 7 is attached to the position where the upper end face of the sealing boss 10 contacts the upper end face of the inner side of the sealing cover 2. The sealing gasket 7 is fixed to the upper end face of the sealing boss 10 with an adhesive to prevent displacement when sealing. When sealing, the sealing cover 2 is placed on the buried enclosure 1, so that the upper end face of the inner side of the sealing cover 2 is in close contact with the sealing gasket 7. Then, the bolts 16 are inserted into the through holes on the upper edge 17 and the lower edge 9 and locked to achieve sealing of the opening at the upper end of the buried enclosure 1.

[0030] Please see Figure 4 and Figure 6The buried housing 1 has a terminal block 6 fixedly connected to its interior center, and the terminal block 6 is equipped with a wiring assembly. The wiring assembly includes an L-shaped sliding strip 14 and a hollow connector 8. The L-shaped sliding strip 14 is fixedly connected to one side of the terminal block 6, and a hollow box 13 is fixedly connected to the other side of the terminal block 6. A sliding block 15 is fixedly connected to the lower end face of the hollow connector 8. One end of the sliding block 15 is fixedly connected to a limiting protrusion 18 that slides in a groove of the L-shaped sliding strip 14. The sliding block 15 is slidably connected between the hollow box 13 and the L-shaped sliding strip 14. In use, the hollow connector 8 can be connected between two hollow boxes 13 through the sliding block 15, so that the number of hollow connectors 8 can be increased or decreased according to the actual wiring requirements in practical applications, making it flexible in use.

[0031] Please see Figure 6 The hollow connector 8 is equipped with a conductive component, which includes a copper conductor 19. The copper conductor 19 is fixedly connected inside the hollow connector 8. Both ends of the hollow connector 8 are provided with connection ports 20, and the copper conductor 19 is provided with terminals 11 at the connection ports 20. The hollow connector 8 is made of insulating material. The terminals 11 at both ends of the copper conductor 19 can be easily connected to the cable. At the same time, the hollow connector 8 is made of insulating material to ensure the insulation between adjacent copper conductors 19.

[0032] Please see Figures 6-7 The hollow box 13 is equipped with a locking assembly for locking the position of the sliding block 15. The locking assembly includes a U-shaped slide 12, which is slidably connected to the side of the hollow box 13 away from the L-shaped sliding bar 14. An inner slide plate 24 is fixedly connected to the U-shaped slide plate 12 inside the hollow box 13. Several locking pins 22 are fixedly connected to the inner slide plate 24, and the locking pins 22 are slidably connected to the hollow box 13. Springs 23 are provided at both ends of the inner slide plate 24 and the inner wall of the hollow box 13 away from the locking pins 22. The sliding block 15 has a locking hole 2 on the side near the hollow box 13 that cooperates with the locking pins 22. 1. When increasing or decreasing the number of hollow connectors 8, the U-shaped slide 12 can be pulled first to pull the locking pin 22 out of the locking hole 21. Then the sliding block 15 can be slid out from between the L-shaped sliding bar 14 and one end of the hollow box 13. At the same time, the sliding block 15 can be slid in from one end of the L-shaped sliding bar 14 and the hollow box 13. The number of hollow connectors 8 can be increased or decreased as needed. After the sliding block 15 is set, ensure that the locking hole 21 on the sliding block 15 is aligned with the locking 22. Then release the U-shaped slide 12. At this time, the locking pin 22 is reset and inserted into the corresponding locking hole 21 under the action of the spring 23, thereby locking the sliding block 15.

[0033] The working principle of this utility model is as follows: In use, the cables to be connected are first threaded through the cable reels 5 at both ends of the buried box 1. Then, according to the wiring requirements, a corresponding number of hollow connectors 8 are set. When installing the hollow connectors 8, the U-shaped slide 12 is pulled to pull the locking pin 22 out of the locking hole 21. Then, a corresponding number of sliding blocks 15 can slide in or out from one end of the L-shaped sliding strip 14 and the hollow box 13. After the number of hollow connectors 8 is set, ensure that the locking hole 21 on the sliding block 15 is aligned with the locking pin 22. Then, the U-shaped slide 12 is released. At this time, the locking pin 22 is reset and inserted into the corresponding locking hole 21 under the action of the spring 23, thereby realizing the locking of the sliding strip. After locking block 15, the cable can be connected through terminal 11. After the connection is completed, the two ends of the cable conduit 5 are sealed with foaming agent to fix the cable inside the cable conduit 5. Then, sealant is injected into the inside of the cable conduit 5 through the injection hole 3. After the sealant cures, the cable conduit 5 can be sealed. Then, the sealing cover 2 is placed on the buried box 1 so that the upper end of the inner surface of the sealing cover 2 is in close contact with the sealing gasket 7. Then, the bolt 16 is inserted into the through holes on the upper edge 17 and the lower edge 9 and the bolt 16 is locked to seal the opening at the upper end of the buried box 1. Through the above sealing measures, efficient waterproofing can be achieved after burial, and underground moisture and corrosive gases can be prevented from entering.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Although this specification describes embodiments, not every embodiment contains only one technical solution. This method of description is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A waterproof underground cable branch box, comprising an underground box body (1), characterized in that: Both sides of the buried box (1) are fixedly connected to a wire threading tube (5), which is connected to the interior of the buried box (1). The upper end of the wire threading tube (5) is provided with an injection hole (3). The upper end of the buried box (1) is fixedly connected to a sealing boss (10), and the lower end of the sealing boss (10) is fixedly connected to a lower edge (9). The upper end of the buried box (1) is also provided with a sealing component that cooperates with the sealing boss (10) to seal the opening of the buried box (1). The middle of the interior of the buried box (1) is fixedly connected to a terminal block (6), and a terminal block (6) is provided on the terminal block (6).

2. The waterproof underground cable branch box according to claim 1, characterized in that, The buried box (1) has mounting plates (4) fixedly connected to both ends of the box below the cable tube (5), and mounting holes are provided on both sides of the mounting plates (4).

3. A waterproof underground cable branch box according to claim 1, characterized in that, The sealing assembly includes a sealing cover (2), the edge of which is fixedly connected to an upper edge (17). Several through holes are provided on both the upper edge (17) and the lower edge (9). Bolts (16) are installed between the through holes on the upper edge (17) and the through holes on the lower edge (9).

4. A waterproof underground cable branch box according to claim 3, characterized in that, A sealing gasket (7) is affixed to the position where the upper end face of the sealing boss (10) contacts the upper end face of the inner side of the sealing cover (2).

5. A waterproof underground cable branch box according to claim 1, characterized in that, The wiring assembly includes an L-shaped sliding bar (14) and a hollow connector (8). The L-shaped sliding bar (14) is fixedly connected to one side of the wiring board (6), and a hollow box (13) is fixedly connected to the other side of the wiring board (6). A sliding bar block (15) is fixedly connected to the lower end face of the hollow connector (8). A limiting protrusion (18) that slides in a groove of the L-shaped sliding bar (14) is fixedly connected to one end of the sliding bar block (15). The sliding bar block (15) is slidably connected between the hollow box (13) and the L-shaped sliding bar (14). A conductive component is provided inside the hollow connector (8), and a locking component for locking the position of the sliding bar block (15) is provided inside the hollow box (13).

6. A waterproof underground cable branch box according to claim 5, characterized in that, The conductive component includes a copper conductor (19), which is fixedly connected inside the hollow connector (8). Both ends of the hollow connector (8) are provided with wiring ports (20), and the copper conductor (19) is provided with wiring terminals (11) at the wiring ports (20).

7. A waterproof underground cable branch box according to claim 6, characterized in that, The locking assembly includes a U-shaped slide (12), which is slidably connected to the side of the hollow box (13) away from the L-shaped sliding bar (14). An inner slide plate (24) is fixedly connected to the position where the U-shaped slide (12) enters the hollow box (13). Several locking pins (22) are fixedly connected to the inner slide plate (24). The locking pins (22) are slidably connected to the hollow box (13). Springs (23) are provided between both ends of the inner slide plate (24) and the inner wall of the hollow box (13) away from the locking pins (22). A locking hole (21) that cooperates with the locking pin (22) is opened on the side of the sliding bar (15) near the hollow box (13).

8. A waterproof underground cable branch box according to claim 6, characterized in that, The hollow connector (8) is made of insulating material.

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