A branch box for urban power grid cable reconstruction

Abstract

The utility model relates to branch box technical field discloses a branch box for city power grid cable reconstruction, box body, sleeve installation component, it includes fixed rail plate of fixed connection on the inner wall of box body, a plurality of limit sliding block of sliding connection on fixed rail plate, sleeve installation board connected between adjacent two limit sliding blocks, a plurality of cable sleeves, a plurality of limit components, the limit component is connected between fixed rail plate and corresponding limit sliding block, the limit component is used for adjusting the position of limit sliding block on fixed rail plate, the utility model discloses sleeve installation component of convenient adjustment can be, when reconstructing, according to the position of corresponding cable sleeve of cable parameter convenient adjustment is carried out, when adjusting, only need to unscrew the plug in limit component, can carry out slow -release exhaust, through the self elasticity of gas storage type pressure bearing assembly and gas resistance to offset the partial gravity of cable sleeve, to make the cable sleeve can slowly drop.

Description

Technical Field

[0001] This utility model relates to the field of branch box technology, and more specifically, it relates to a branch box for urban power grid cable renovation. Background Technology

[0002] With the development of cable distribution networks, when independent loads with small capacity are concentrated, cable branch boxes can be used to connect multiple branches of cables. The main function of cable branch boxes is to split or transfer cables.

[0003] Cable branch boxes used for urban power grid cable transformation have different parameters for the cables they branch or transfer due to different transformation projects. When using pluggable cable sleeves for transformation, the position of the cable sleeves may not be suitable for all transformation parameters. For example, if the length and aging degree of a certain cable are different, the branch box will need to be adjusted to adapt to the transformation parameters before it is put into use. However, the position of the cable sleeves in conventional branch boxes is fixed, and the adjustment process is relatively cumbersome. Utility Model Content

[0004] The purpose of this utility model is to provide a branch box for urban power grid cable renovation in order to solve the above-mentioned problems.

[0005] This utility model provides a branch box for urban power grid cable renovation, comprising: Box; The sleeve installation assembly includes a fixed rail plate fixedly connected to the inner wall of the housing, a plurality of limiting sliders slidably connected to the fixed rail plate, and a sleeve installation plate connected between two adjacent limiting sliders. A plurality of cable sleeves, wherein the plurality of cable sleeves are detachably connected to a plurality of sleeve mounting plates; Several limiting components are connected between a fixed rail plate and a corresponding limiting slider, and the limiting components are used to adjust the position of the limiting slider on the fixed rail plate.

[0006] As a further optimization of this utility model, the limiting component includes a gas-storing pressure-bearing component and a plug detachably connected to the gas-storing pressure-bearing component. When the plug is disconnected from the gas-storing pressure-bearing component, the internal space of the gas-storing pressure-bearing component is connected to the outside.

[0007] As a further optimization of this utility model, the gas-storing pressure-bearing assembly includes a first bellows and a second bellows connected between the limiting slider and the fixed rail plate, a slide rod fixedly connected to the fixed rail plate, and a through hole provided on the fixed rail plate. The through hole is located between the first bellows and the second bellows, and the slide rod is located inside the second bellows. The limiting slider is provided with a through hole for the slide rod to pass through. A gas-storing chamber is formed between the first bellows, the second bellows, the fixed rail plate, and the limiting slider. The plug is detachably connected to the through hole.

[0008] As a further optimization of this utility model, a sealing plate is fixedly connected to the inner wall of the perforation. The sealing plate is provided with a plurality of vent holes II. A plastic sealing sheet is connected to the end face of the sealing plate located in the gas storage chamber. The plastic sealing sheet is fixedly connected to the sealing plate on only one side and covers only part of the vent holes II.

[0009] As a further optimization of this utility model, the box body includes a bottom plate, several side plates connected to the bottom plate, a top plate connected to two of the side plates, two symmetrically hinged wing doors on the top plate, and a latch installed on the wing doors. Several ventilation holes are provided on the side plates, and several rain covers are connected to the outer wall of the side plates. The rain covers are arranged in correspondence with the ventilation holes.

[0010] As a further optimization of this utility model, a grounding bar is detachably connected to the inner wall of one of the side plates, and several vent holes are located below the grounding bar.

[0011] As a further optimization of this utility model, a cable limiting bracket is detachably connected to the middle position of the base plate, and a cable routing hole for the cable to pass through is opened on the base plate, with the cable routing hole located below the cable limiting bracket.

[0012] The beneficial effects of this utility model are as follows: This utility model adopts a sleeve installation component that can be easily adjusted. During the modification, the position of the corresponding cable sleeve can be easily adjusted according to the cable parameters. During adjustment, simply unscrew the plug in the limiting component to release the air slowly. The elasticity of the air-storage pressure-bearing component and the air resistance are used to offset part of the weight of the cable sleeve, so that the cable sleeve can be lowered slowly. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the box body of this utility model; Figure 3 This is a view showing the fitting of the sleeve installation assembly and the cable sleeve of this utility model; Figure 4This is the utility model Figure 3 An enlarged view of point A in the image; Figure 5 This is the utility model Figure 3 A magnified view of point B in the image.

[0014] In the diagram: 101, base plate; 102, side plate; 103, vent hole one; 104, rain cover; 105, top plate; 106, wing door; 107, latch; 108, grounding bar; 109, cable limit bracket; 201, fixed rail plate; 202, limit slider; 203, sleeve mounting plate; 3, cable sleeve; 4, limit assembly; 401, corrugated pipe one; 402, corrugated pipe two; 403, slide bar; 404, perforation; 405, sealing plate; 406, vent hole two; 407, plastic sealing sheet; 408, plug. Detailed Implementation

[0015] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed merely to enable those skilled in the art to better understand and implement the subject matter described herein. Furthermore, features described in some examples may be combined in other examples.

[0016] like Figures 1 to 5 As shown, a branch box for urban power grid cable renovation includes: The enclosure includes a bottom plate 101, several side plates 102 connected to the bottom plate 101, a top plate 105 connected to two of the side plates 102, two symmetrically hinged wing doors 106 on the top plate 105, and latches 107 installed on the wing doors 106. Several ventilation holes 103 are provided on the side plates 102, and several rain covers 104 are connected to the outer wall of the side plates 102. The rain covers 104 are correspondingly arranged with the ventilation holes 103. A grounding bar 108 is detachably connected to the inner wall of one of the side plates 102, and several vent holes 103 are located below the grounding bar 108. A cable limiting bracket 109 is detachably connected to the middle of the base plate 101, and a cable routing hole for the cable to pass through is provided on the base plate 101, which is located below the cable limiting bracket 109. The sleeve installation assembly includes a fixed rail plate 201 fixedly connected to the inner wall of the box, a plurality of limiting sliders 202 slidably connected to the fixed rail plate 201, and a sleeve installation plate 203 connected between two adjacent limiting sliders 202. Several cable sleeves 3 are detachably connected to several sleeve mounting plates 203; Several limiting components 4 are connected between the fixed rail plate 201 and the corresponding limiting slider 202. The limiting components 4 are used to adjust the position of the limiting slider 202 on the fixed rail plate 201.

[0017] It should be noted that during cable modification, the position of the cable sleeve 3 in the box should be adjusted according to the actual parameters of the cable to be connected or transferred. During adjustment, the limiting slider 202 is adjusted to slide vertically on the fixed rail plate 201 through the limiting component 4, thereby driving the sleeve mounting plate 203 fixedly connected to the limiting slider 202 and the cable sleeve 3 detachably connected to the sleeve mounting plate 203 to move in the same direction and at the same distance. The position of each sleeve mounting plate 203 can be customized and adjusted, and the adjustment process of each sleeve mounting plate 203 does not affect each other.

[0018] In an optional embodiment of the present invention, the limiting component 4 includes a screw fixedly connected to the fixed rail plate 201 and a threaded sleeve movably connected to the corresponding limiting slider 202, wherein the threaded sleeve is threadedly connected to the screw.

[0019] It should be noted that when adjusting the position of the sleeve mounting plate 203 and the cable sleeve 3 thereon, simply rotating the threaded sleeve will allow the sleeve mounting plate 203 and the cable sleeve 3 thereon to move up or down in the vertical direction.

[0020] In an optional embodiment of this utility model, since the adjustment process is cumbersome due to the use of the screw and threaded sleeve as described above, the following method can also be used: The limiting component 4 includes a gas-storage pressure-bearing component and a plug 408 detachably connected to the gas-storage pressure-bearing component. When the plug 408 is disconnected from the gas-storage pressure-bearing component, the internal space of the gas-storage pressure-bearing component is connected to the outside.

[0021] The gas-storage pressure-bearing assembly includes a first bellows 401 and a second bellows 402 connected between the limiting slider 202 and the fixed rail plate 201, a slide rod 403 fixedly connected to the fixed rail plate 201, and a through hole 404 provided on the fixed rail plate 201. The through hole 404 is located between the first bellows 401 and the second bellows 402, and the slide rod 403 is located inside the second bellows 402. The limiting slider 202 is provided with a through hole for the slide rod 403 to pass through. A gas-storage chamber is formed between the first bellows 401, the second bellows 402, the fixed rail plate 201, and the limiting slider 202. A plug 408 is detachably connected to the through hole 404.

[0022] It should be noted that when the limiting slider 202, the sleeve mounting plate 203, and the cable sleeve 3 are stably supported, the plug 408 is in a stable blocking state of the perforation 404. At this time, the internal space of the air storage chamber is stable. Through the stable air pressure and the elastic force provided by the materials of the first bellows 401 and the second bellows 402, the position of the limiting slider 202 can be kept stable. When it is necessary to adjust the position of the cable sleeve 3, the plug 408 is unscrewed from the perforation 404, and the air storage chamber is in a state of being connected to the outside. In the open state, the stable air pressure cannot be maintained. The bellows 401 and 402 are deformed by pressure. The limit slider 202 slides along the slide bar 403 and drives the sleeve mounting plate 203 and the cable sleeve 3 on it to move in the same direction and at the same distance. The internal space of the air storage chamber shrinks and the gas is discharged from the perforation 404. When it is discharged, a reverse air resistance can be formed, so that the cable sleeve 3 can be slowly lowered to the set position. This process can be automatically adjusted by simply unscrewing the plug 408, which is more convenient and labor-saving.

[0023] In an optional embodiment of this utility model, a sealing plate 405 is fixedly connected to the inner wall of the perforation 404. The sealing plate 405 is provided with a plurality of vent holes 406. A plastic sealing sheet 407 is connected to the end face of the sealing plate 405 located in the gas storage chamber. Only one side of the plastic sealing sheet 407 is fixedly connected to the sealing plate 405, and the plastic sealing sheet 407 only covers part of the vent holes 406.

[0024] It should be noted that, in order to further improve the slow descent process of the cable sleeve 3, a sealing plate 405 is provided. When the plug 408 is unscrewed, the internal space of the air storage chamber decreases and the air pressure increases. The gas is discharged from the vent hole 406 that is not covered by the plastic sealing sheet 407. Compared with the above-mentioned direct exhaust from the perforation 404, the exhaust volume in this embodiment is further reduced, which can make the slow descent process of the cable sleeve 3 more stable. During the upward movement or repositioning of the cable sleeve 3, the internal volume of the air storage chamber increases, and the resulting negative pressure can cause the plastic sealing sheet 407 to bend towards the inside of the air storage chamber, so that all vent holes 406 are in a conductive state, thus not affecting the gas replenishment process of the air storage chamber and reducing the difficulty of repositioning.

[0025] The above description of this embodiment is not limited to the specific implementation described above. The specific implementation described above is merely illustrative and not restrictive. Those skilled in the art can make many other forms based on the guidance of this embodiment, all of which are within the protection scope of this embodiment.

Claims

1. A branch box for the reconstruction of an urban power network cable, characterized in that, include: Box; The sleeve installation assembly includes a fixed rail plate (201) fixedly connected to the inner wall of the box, a plurality of limiting sliders (202) slidably connected to the fixed rail plate (201), and a sleeve installation plate (203) connected between two adjacent limiting sliders (202). Several cable sleeves (3) are detachably connected to several sleeve mounting plates (203); Several limiting components (4) are connected between the fixed rail plate (201) and the corresponding limiting slider (202). The limiting components (4) are used to adjust the position of the limiting slider (202) on the fixed rail plate (201).

2. A branch box for urban power grid cable renovation according to claim 1, characterized in that, The limiting component (4) includes a gas-storage pressure-bearing component and a plug (408) detachably connected to the gas-storage pressure-bearing component. When the plug (408) is disconnected from the gas-storage pressure-bearing component, the internal space of the gas-storage pressure-bearing component is connected to the outside.

3. A branch box for urban power grid cable renovation according to claim 2, characterized in that, The gas-storing pressure-bearing assembly includes a first bellows (401) and a second bellows (402) connected between a limiting slider (202) and a fixed rail plate (201), a slide rod (403) fixedly connected to the fixed rail plate (201), and a through hole (404) provided on the fixed rail plate (201). The through hole (404) is located between the first bellows (401) and the second bellows (402). The slide rod (403) is located inside the second bellows (402). The limiting slider (202) is provided with a through hole for the slide rod (403) to pass through. A gas-storing chamber is formed between the first bellows (401), the second bellows (402), the fixed rail plate (201), and the limiting slider (202). The plug (408) is detachably connected to the through hole (404).

4. A branch box for urban power grid cable renovation according to claim 3, characterized in that, A sealing plate (405) is fixedly connected to the inner wall of the perforation (404). The sealing plate (405) is provided with a plurality of vent holes (406). A plastic sealing sheet (407) is connected to the end face of the sealing plate (405) located in the gas storage chamber. Only one side area of ​​the plastic sealing sheet (407) is fixedly connected to the sealing plate (405), and the plastic sealing sheet (407) only covers part of the vent holes (406).

5. A branch box for urban power grid cable renovation according to claim 4, characterized in that, The enclosure includes a bottom plate (101), several side plates (102) connected to the bottom plate (101), a top plate (105) connected to two of the side plates (102), two symmetrically hinged wing doors (106) on the top plate (105), and latches (107) installed on the wing doors (106). Several ventilation holes (103) are provided on the side plates (102), and several rain covers (104) are connected to the outer wall of the side plates (102). The rain covers (104) are correspondingly arranged with the ventilation holes (103).

6. A branch box for urban power grid cable renovation according to claim 5, characterized in that, One of the side plates (102) has a grounding bar (108) detachably connected to its inner wall, and several vent holes (103) are located below the grounding bar (108).

7. A branch box for urban power grid cable renovation according to claim 6, characterized in that, A cable limiting bracket (109) is detachably connected to the middle of the base plate (101), and a cable routing hole is provided on the base plate (101) for the cable to pass through. The cable routing hole is located below the cable limiting bracket (109).

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