Incoming and outgoing line structure of distribution box

Abstract

A distribution box incoming and outgoing line structure provided by the present invention comprises a plurality of line passing devices arranged in a sinking table area of a box plate, each line passing device comprises a main pipe section, a flexible pipe section and an auxiliary pipe section, one end of the flexible pipe section is connected with the main pipe section, the other end of the flexible pipe section is connected with the auxiliary pipe section, and the diameter of the auxiliary pipe section is gradually reduced from one side of the auxiliary pipe section to the free end of the auxiliary pipe section. The diameter of the extending part of the main pipe section is gradually increased from one side of the main body part to the free end, and the joint of the main body part and the extending part of the main pipe section adopts a fillet structure. The wire passing devices are installed in the wire passing holes of the box plate, one end of the main pipe section of each wire passing device is of an open structure, the other end of the main pipe section of each wire passing device is connected with the auxiliary pipe section capable of moving along with the cable through the flexible pipe section, and the parts, located inside and outside the distribution box, of the cable can be well protected and cannot be cut and damaged by the wire passing holes in the box plate; meanwhile, the cable passing device can adapt to adjustment of the position and the bending angle of the cable, the cable is protected in real time, and damage is avoided.

Description

Technical Field

[0001] The invention belongs to the technical field of electrical equipment, and in particular relates to an inlet and outlet line structure of a distribution box. Background Art

[0002] The way the cables enter and exit the distribution box is usually from the side or bottom of the distribution box. There are often burrs and flying skin on the openings of the inlet and outlet holes on the box board. These burrs and flying skin will cut the insulation layer of the cable when the cable is passed through. Even if the burrs and flying skin are polished during the production of the distribution box, the edges of the wire holes are easy to hurt the cables. In order to prevent the cables from being cut by the wire holes on the distribution box when entering and exiting the distribution box, wire protection tubes for inlet and outlet protection are usually installed at the wire holes. In the prior art, some wire protection tubes have longer protruding parts at both ends of the box board of the distribution box, which are easy to interfere with the outside world. When the cable is close to the wire protection tube and the curvature is large, the two ends of the wire protection tube may also hurt the cable. When the cables of the distribution box are connected and used, they will pull the cables or change the bending angle of the cables. Conventional wire protection tubes cannot protect the cables well during the operation. Therefore, it is necessary to make improvements. Summary of the invention

[0003] In view of this, the present invention aims to overcome the defects in the prior art and proposes an inlet and outlet line structure of a distribution box.

[0004] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0005] A distribution box inlet and outlet wire structure, including a plurality of wire passers arranged side by side on a box plate of the distribution box, a sunken platform area is provided on the box plate of the distribution box, and each wire passer is arranged in the sunken platform area, a plurality of wire passing holes are provided on the box plate, and a wire passer is installed in each wire passing hole, the wire passer includes a main pipe section, a flexible pipe section and an auxiliary pipe section, the main pipe section includes a main body inserted into the box plate and an extension part extending out of the box plate, one end of the flexible pipe section is connected to the main pipe section, and the other end is connected to the auxiliary pipe section, the diameter of the auxiliary pipe section gradually decreases from one side of the auxiliary pipe section to its free end, and the diameter of the extension part gradually increases from one side of the main body to its free end, and a rounded structure is adopted at the junction of the main body and the extension part.

[0006] Furthermore, the connection between the flexible pipe section and the auxiliary pipe section, and between the flexible pipe section and the main pipe section, all have smooth transitions.

[0007] Furthermore, the length of the protruding portion extending out of the outer surface of the box plate is less than 5 mm.

[0008] Furthermore, the end surface of the main pipe section facing the flexible pipe section does not protrude from the inner surface of the box plate, that is, the end surface of the free end of the main pipe section is located between the inner and outer surfaces of the box plate.

[0009] Furthermore, the wire passers are arranged at equal intervals.

[0010] Furthermore, there are 6 to 15 wire passers.

[0011] Furthermore, each of the wire passers is arranged at the same height.

[0012] Furthermore, the flexible pipe section is made of a corrugated pipe or a rubber pipe.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] The invention has a simple structure and a reasonable design. Wire passers are respectively installed in the wire passing holes of the box plate. One end of the main pipe section of the wire passer is an open structure, and the other end is connected with an auxiliary pipe section that can move with the cable through a flexible pipe section. The parts of the cable inside and outside the distribution box can be well protected and will not be cut and damaged by the wire passing holes on the box plate. At the same time, the wire passer can also adapt to the adjustment of the cable position and bending angle, protect the cable in real time, and avoid damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 A schematic diagram of the structure created by the present invention;

[0017] Figure 2 A cross-sectional view created for the present invention;

[0018] Figure 3 A schematic diagram of the installation structure of the wire passer in the invention;

[0019] Figure 4 It is a schematic diagram of the wire passer in the invention. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0022] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0023] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0024] A distribution box inlet and outlet structure, such as Figures 1 to 4 As shown, it includes a plurality of wire passers 2 arranged side by side on a box plate 1 of a distribution box, a sunken platform area 3 is provided on the box plate of the distribution box, a plurality of wire passing holes are provided on the box plate, a wire passer is installed in each wire passing hole, and each wire passer is arranged in the sunken platform area, the wire passer includes a main pipe section 4, a flexible pipe section 5 and an auxiliary pipe section 6, the main pipe section includes a main body 7 inserted in the box plate and an extension part 8 extending out of the outside of the box plate, one end of the flexible pipe section is connected to the main pipe section, and the other end is connected to the auxiliary pipe section, the diameter of the auxiliary pipe section gradually decreases from one side of the auxiliary pipe section to its free end, and the diameter of the extension part gradually increases from one side of the main body to its free end, and a rounded structure 9 is adopted at the connection between the main body and the extension part.

[0025] The length of the protruding portion protruding out of the outer surface of the box board is less than 5 mm. Since a sink area is provided on the box board, the protruding portion will not protrude too much from the outer surface of the box board. The protruding portion can protect the cables and prevent the end of the wire guide from cutting the cables. In addition, the end face of the main pipe section facing the flexible pipe section does not protrude from the inner surface of the box board (that is, the end face of the free end of the main pipe section is between the inner and outer surfaces of the box board). The connection between the flexible pipe section and the auxiliary pipe section, and the flexible pipe section and the main pipe section are all smoothly transitioned to avoid cutting the cables.

[0026] In order to facilitate maintenance and cable construction operations, the wire guides are usually arranged at equal intervals. There are 6 to 15 wire guides. The wire guides are all arranged at the same height.

[0027] The flexible pipe section is made of a corrugated tube or a rubber tube, and the cable passes through the wire passer. During use, even if the cable needs to change position (direction or bending angle changes) inside the distribution box or shakes or shifts during wiring, the flexible pipe section is allowed to deform during this process to ensure that the auxiliary pipe section moves with it, thereby always protecting the cable. When the cable part outside the distribution box needs to change position or angle, the fillet structure is adopted at the connection between the main body and the extension part, and the extension part has a flared structure, so the cable can be protected to avoid cutting the cable at the wire passing hole of the box plate.

[0028] The invention has a simple structure and a reasonable design. Wire passers are respectively installed in the wire passing holes of the box plate. One end of the main pipe section of the wire passer is an open structure, and the other end is connected with an auxiliary pipe section that can move with the cable through a flexible pipe section. The parts of the cable inside and outside the distribution box can be well protected and will not be cut and damaged by the wire passing holes on the box plate. At the same time, the wire passer can also adapt to the adjustment of the cable position and bending angle, protect the cable in real time, and avoid damage.

[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A distribution box inlet and outlet line structure, characterized by: It includes a plurality of wire passers arranged side by side on the box plate of the distribution box, the box plate is provided with a plurality of wire passing holes, a wire passer is installed in each wire passing hole, and a sink area is provided on the box plate at the position corresponding to the wire passing hole; the wire passer includes a main pipe section, a flexible pipe section and an auxiliary pipe section, the main pipe section includes a main body inserted into the box plate and an extension part extending out of the box plate, one end of the flexible pipe section is connected to the main pipe section, and the other end is connected to the auxiliary pipe section, the diameter of the auxiliary pipe section gradually decreases from one side of the auxiliary pipe section to its free end, and the diameter of the extension part gradually increases from one side of the main body to its free end, and a rounded structure is adopted at the connection between the main body and the extension part.

2. The inlet and outlet wire structure of a distribution box according to claim 1, characterized in that: The joints between the flexible pipe section and the auxiliary pipe section, and between the flexible pipe section and the main pipe section, are all smoothly transitioned.

3. The inlet and outlet wire structure of a distribution box according to claim 1, characterized in that: The length of the protruding portion extending out of the outer surface of the box plate is less than 5 mm.

4. The inlet and outlet wire structure of a distribution box according to claim 1, characterized in that: The end surface of the main pipe section facing the flexible pipe section does not protrude from the inner surface of the box plate.

5. The inlet and outlet wire structure of a distribution box according to claim 1, characterized in that: The wire passers are arranged at equal intervals.

6. A distribution box inlet and outlet wire structure according to claim 1 or 5, characterized in that: There are 6 to 15 wire guides.

7. A distribution box inlet and outlet wire structure according to claim 1 or 5, characterized in that: Each of the wire guides is arranged at the same height.

8. The inlet and outlet wire structure of a distribution box according to claim 1, characterized in that: The flexible pipe section is made of a corrugated pipe or a rubber pipe.

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