Cable branch box

Abstract

The invention relates to a cable branch box, and relates to the technical field of branch boxes, the cable branch box comprises a box body and a box door arranged on the box body, and the inner wall, facing the box door, of the box body is fixedly provided with a plurality of cross bars; a plurality of supporting rods are fixedly arranged on the lower portion of the box body, heat dissipation holes are formed in the bottom side of the interior of the box body, and a first filter screen is fixedly arranged on the outer edge of an opening of each heat dissipation hole; according to the application, through the cooperative arrangement of the heat dissipation holes and the first filter screen, firstly, the support rod is used for lifting the whole box body to a certain height, and heat generated by the electrical elements in the box body during operation can be dissipated from the heat dissipation holes; the heat dissipation holes are formed in the bottom side of the box body, and the first filter screens are arranged on the inner walls of the heat dissipation holes, so that the possibility that external dust enters the box body from the heat dissipation holes is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of branch boxes, and in particular to a cable branch box. Background Art

[0002] Cable branch boxes, as key components in cable lines, have the core function of realizing efficient cable tapping and transfer, which is of great significance to promoting the process of cable distribution network. Especially when dealing with independent loads with moderate capacity and concentrated distribution, cable branch boxes have become indispensable equipment with their multi-branch connection capabilities. They are widely used in urban infrastructure such as street lamp power supply, small user power supply systems, and power supply security for high-speed transportation such as high-speed railways.

[0003] However, in the prior art, although the structural design of the cable branch box is relatively mature, including the basic structure of a box body and a box door, as well as wiring ports and heat dissipation ports arranged on the vertical sides of the box body to meet the electrical connection and heat dissipation requirements; a number of supporting cross bars are fixed on the inner wall of the box body by screws, and the relevant electrical components are fixedly installed on the corresponding supporting cross bars.

[0004] When the cable branch box is used outdoors, the heat dissipation holes on the box body effectively promote the dissipation of internal heat, but also provide a path for the intrusion of dust, moisture and other impurities from the outside. Once these impurities enter the box body, they may adhere to the surface of electrical components, affecting their heat dissipation efficiency, and even causing electrical performance degradation or failure, posing a potential threat to the stable operation of the power grid. Summary of the invention

[0005] The purpose of the present application is to provide a cable branch box to solve the problem in the above-mentioned related art that when the cable branch box is used outdoors, external dust may enter the box through the heat dissipation port and affect the electrical performance of the internal electrical components.

[0006] The present application provides a cable branch box adopting the following technical solution: A cable branch box comprises a box body and a box door arranged on the box body, wherein a plurality of cross bars are fixedly arranged on the inner wall of the box body facing the box door; a plurality of support bars are fixedly arranged on the lower part of the box body, a heat dissipation hole is opened on the bottom side of the inner part of the box body, and a first filter is fixedly arranged on the outer edge of the opening of the heat dissipation hole.

[0007] By adopting the above technical solution, since the support rod lifts the entire box to a certain height, the heat generated by the electrical components in the box during operation can be dissipated through the heat dissipation holes; since the heat dissipation holes are arranged on the bottom side of the box, and a first filter net is also arranged on the inner wall of the heat dissipation holes, the possibility of external dust entering the box through the heat dissipation holes is reduced.

[0008] Optionally, a plurality of heat dissipation openings are symmetrically provided on two opposite vertical side surfaces of the box body, a protective cover with an opening facing upward is fixedly provided on the inner edge of the opening of the heat dissipation opening, and a second filter is fixedly provided on the inner edge of the upper opening of the protective cover.

[0009] By adopting the above technical solution, the gas with higher temperature in the box can also be discharged through the heat dissipation port. At the same time, the provision of the protective cover and the second filter net can reduce the possibility of external dust or rainwater entering the box through the heat dissipation port.

[0010] Optionally, the box body is provided with a protective cover with an opening facing downward on the outer edge of the opening of the heat dissipation port.

[0011] By adopting the above technical solution, due to the application and setting of the protective cover, the possibility of external rainwater, dust or other impurities entering the box through the heat dissipation port is further reduced.

[0012] Optionally, a blocking plate is arranged above the protective cover, and a connecting rod is vertically fixed to the two ends of several of the blocking plates, and the connecting rod is slidably arranged on the inner wall of the box body; an adjusting part for driving the connecting rod to move is fixed on the inner wall of the box body, and the blocking plate can move back and forth in the direction close to the protective cover and block the opening of the protective cover.

[0013] By adopting the above technical solution, when the cable branch box is used in an environment with strong wind and sand, the staff can control the adjustment part to drive the baffle plate to slide downward, so that the bottom side of the baffle plate abuts against the upper edge of the protective cover, and then the heat dissipation port is blocked, thereby preventing the fan from entering the cabinet from the heat dissipation port, thereby improving the protection performance of the box under conditions of strong wind and sand.

[0014] Optionally, a limiting groove is provided on the bottom opening edge of the baffle plate, and the upper edge of the protective cover can be inserted into the limiting groove.

[0015] By adopting the above technical solution, when the baffle plate blocks the upper opening of the protective cover, the upper edge of the protective cover can be inserted into the limiting groove on the bottom side of the baffle plate, thereby reducing the possibility of external wind and sand or other impurities entering the box body through the abutment gap between the baffle plate and the protective cover in this state.

[0016] Optionally, the adjusting member includes an electric cylinder fixedly mounted on the inner wall of the box body along a vertical direction, and a telescopic rod of the electric cylinder is fixedly connected to an upper end of the connecting rod.

[0017] By adopting the above technical solution, the electric cylinder, as a precision electric actuator, can achieve precise position control and force control. Through programming or manual adjustment, the extension or shortening of the telescopic rod can be accurately controlled, thereby achieving precise adjustment of the position of the connecting rod and improving the sealing performance of the protective cover when it is blocked by the barrier plate.

[0018] Optionally, a locking rod located at the end of the cross bar is slidably provided on the inner wall of the box body, a transmission rod is hinged on the side of the connecting rod, the end of the transmission rod away from the connecting rod is hinged to one end of the locking rod, and a locking notch is provided at the end of the locking rod away from the transmission rod; when the connecting rod slides up and down, the transmission rod drives the locking rod to move back and forth in a direction close to the cross bar, and the end of the cross bar can be inserted into the locking notch.

[0019] By adopting the above technical solution, due to the coordinated setting of the locking rod and the transmission rod, when the connecting rod slides up and down, the transmission rod drives the locking rod to move back and forth in the direction close to the cross bar; when the external wind and sand are strong, the barrier plate blocks the upper opening of the protective cover, and at this time the end of the cross bar is inserted into the locking notch, that is, in this state the locking rod further locks the two ends of the cross bar.

[0020] Optionally, a cooling fan is fixedly provided on the inner wall of the heat dissipation hole, and a control button for controlling the cooling fan is fixedly provided on the bottom side of the interior of the box body.

[0021] By adopting the above technical solution, the control button can be pressed as needed to start the cooling fan, accelerate the circulation of gas inside and outside the box, and improve the heat dissipation performance of the cable branch box.

[0022] Optionally, a control rod is slidably provided on the bottom side of the box body, and an adjusting rod is hinged on one end of the control rod toward the connecting rod, and the end of the adjusting rod away from the control rod is hinged to the lower end of the connecting rod; when the blocking plate moves downward with the connecting rod to block the opening of the protective cover, the adjusting rod drives the control rod to press the control button to turn off the cooling fan.

[0023] By adopting the above technical solution, when the cable branch box is used in an environment with strong wind and sand, the barrier plate slides downward to block the heat dissipation port. At the same time, when the connecting rod slides downward, it drives the control rod to slide in the direction close to the control button, so that the control rod presses the control button and turns off the cooling fan. In this state, the cable branch box only dissipates heat through the heat dissipation holes on the bottom side of the box, thereby reducing the possibility of external wind and sand entering the box.

[0024] Optionally, an elastic pad is fixedly provided on the end of the control rod facing the control button.

[0025] By adopting the above technical solution, when the control rod presses the control button, the possibility of the control button being damaged due to the collision of the control rod is reduced due to the buffering setting of the elastic pad.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. Through the coordinated setting of the heat dissipation holes and the first filter, first use the support rod to lift the entire box to a certain height, so that the heat generated by the electrical components in the box during operation can be dissipated from the heat dissipation holes; since the heat dissipation holes are arranged on the bottom side of the box, and the first filter is also arranged on the inner wall of the heat dissipation holes, the possibility of external dust entering the box through the heat dissipation holes is reduced.

[0027] 2. When the cable branch box is used in an environment with strong wind and sand, the staff can control the adjustment part to drive the baffle to slide downward so that the bottom side of the baffle abuts against the upper edge of the protective cover, thereby blocking the heat dissipation port, thereby preventing the fan from entering the cabinet from the heat dissipation port, thereby improving the protection performance of the box under strong wind and sand conditions.

[0028] 3. When the cable branch box is used in an environment with strong wind and sand, the barrier plate slides downward to block the heat dissipation port. At the same time, the connecting rod slides downward to drive the control rod to slide toward the control button, so that the control rod presses the control button and turns off the cooling fan. In this state, the cable branch box only dissipates heat through the heat dissipation holes on the bottom side of the box, thereby reducing the possibility of external wind and sand entering the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application; Figure 2 This is a structural diagram of the embodiment of the present application showing the installation and coordination of the box body and the box door; Figure 3 It is a schematic cross-sectional structure diagram showing the distribution of heat dissipation ports in an embodiment of the present application; Figure 4 It is a partial cross-sectional structural schematic diagram of the embodiment of the present application embodying the installation and cooperation of the protective cover and the protective cover; Figure 5 It is a schematic cross-sectional structure diagram of the installation and matching of the adjusting member in the embodiment of the present application; Figure 6 It is a partial cross-sectional structural schematic diagram of the installation and coordination of the heat dissipation fan in the embodiment of the present application; Figure 7 It is a partial cross-sectional structural schematic diagram of the installation cooperation of the locking rod and the transmission rod according to an embodiment of the present application.

[0031] In the figure, 1. box body; 11. cross bar; 12. support bar; 13. heat dissipation hole; 14. first filter; 15. heat dissipation port; 16. protective cover; 17. protective cover; 18. second filter; 2. box door; 3. cooling fan; 31. control button; 4. blocking plate; 41. connecting rod; 42. limiting sink groove; 5. adjusting part; 51. electric cylinder; 6. control rod; 61. elastic pad; 7. adjusting rod; 8. locking rod; 81. locking notch; 9. transmission rod. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0033] Example: Reference Figure 1 and Figure 2 A cable branch box comprises a box body 1 and a box door 2 arranged on the box body 1, wherein one side edge of the box door 2 is hinged to the opening edge of the box body 1, and the other side of the box door 2 is detachably connected to the box body 1 through a conventional lock structure; a plurality of cross bars 11 are fixed on the inner wall of the box body 1 facing the box door 2, and related electrical components are fixed on the cross bars 11 by screws or other placement and installation.

[0034] Reference Figure 2 and Figure 3 Support rods 12 are fixedly provided at the four corners of the bottom side of the lower part of the box body 1, and heat dissipation holes 13 are opened on the bottom side of the inside of the box body 1. A first filter 14 for blocking dust or other impurities is fixedly provided on the outer edge of the opening of the heat dissipation hole 13. The heat generated by the electrical components in the box body 1 during operation can be dissipated from the heat dissipation holes 13, and the possibility of external dust or other impurities entering the box body 1 is reduced through the first filter 14.

[0035] Reference Figure 3 and Figure 4 , three heat dissipation openings 15 are symmetrically provided on two opposite vertical side surfaces of the box body 1, that is, the number of heat dissipation openings 15 on the same side wall is three, the cross section of the heat dissipation opening 15 is waist-shaped, and the length direction is parallel to the horizontal plane; the box body 1 is fixedly provided with a protective cover 16 with an opening facing downward on the outer edge of the opening of the heat dissipation opening 15; A protective cover 17 with an opening facing upward is fixedly provided on the inner edge of the opening of the heat dissipation port 15 of the box body 1, and a second filter 18 for blocking dust or other impurities is fixedly provided on the inner edge of the upper opening of the protective cover 17; while improving the heat dissipation function of the cable branch box, the possibility of external dust entering the box body 1 through the heat dissipation port 15 is also reduced.

[0036] Reference Figure 4 and Figure 5, a blocking plate 4 is arranged above the protective cover 17, wherein the two ends of the three blocking plates 4 on the same side are commonly and vertically fixedly connected with a connecting rod 41, and the two connecting rods 41 are slidably arranged on the inner wall of the box body 1; an adjusting member 5 for driving the connecting rod 41 to move is fixed on the inner wall of the box body 1. When the external wind and sand are strong, the blocking plate 4 can be driven to slide by the adjusting member 5, so that the blocking plate 4 moves back and forth (slides up and down) in the direction close to the protective cover 17, and blocks the upper opening of the protective cover 17.

[0037] Reference Figure 4 and Figure 5 The adjusting member 5 includes two electric cylinders 51 fixedly arranged on the inner wall of the box body 1 along the vertical direction, wherein the telescopic rod of the electric cylinder 51 is fixedly connected to the upper end of the connecting rod 41; when the electric cylinder 51 is started, it drives the connecting rod 41 to slide back and forth up and down; a limiting groove 42 is provided on the opening edge of the bottom side of the blocking plate 4, and when the connecting rod 41 slides up and down, the upper edge of the protective cover 17 can be inserted into the limiting groove 42 on the bottom side of the blocking plate 4, thereby blocking the upper opening of the protective cover 17.

[0038] Reference Figure 6 A cooling fan 3 is fixedly provided on the inner wall of the heat dissipation hole 13, wherein the cooling fan 3 is a fan driven by a conventional small motor, which will not be described in detail here; and a control button 31 for controlling the cooling fan 3 is fixedly provided on the bottom side of the box body 1; the control button 31 can be pressed as needed to start the cooling fan 3, thereby improving the heat dissipation performance of the cable branch box.

[0039] Reference Figure 6 A control rod 6 is slidably provided on the bottom side surface inside the box body 1, and an adjusting rod 7 is hinged on one end of the control rod 6 facing the connecting rod 41, and an elastic pad 61 made of rubber material is fixed to the end of the control rod 6 facing the control button 31; when the blocking plate 4 moves downward with the connecting rod 41 to block the opening of the protective cover 17, the adjusting rod 7 drives the control rod 6 to slide back and forth in the direction close to the control button 31, so that the control button 31 can be pressed and the cooling fan 3 can be turned off.

[0040] Reference Figure 7 A locking rod 8 is slidably disposed at the end of the cross bar 11 on the inner wall of the box body 1 in the horizontal direction, wherein the locking rod 8 can slide back and forth along its own length direction; a transmission rod 9 is hingedly connected to the side of the connecting rod 41, and the end of the transmission rod 9 away from the connecting rod 41 is hingedly connected to one end of the locking rod 8, and a locking notch 81 is formed at the end of the locking rod 8 away from the transmission rod 9; When the connecting rod 41 slides up and down, the transmission rod 9 drives the locking rod 8 to move back and forth in the direction close to the cross bar 11. When the blocking plate 4 blocks the upper opening of the protective cover 17, the end of the cross bar 11 can be inserted into the locking notch 81. That is, in this state, the locking rod 8 further locks the two ends of the cross bar 11.

[0041] The implementation principle of the embodiment of the present application is: When the cable branch box is used in an environment with strong wind and sand, the staff remotely controls the electric cylinder 51 to make the electric cylinder 51 drive the blocking plate 4 to slide downward, so that the bottom side of the blocking plate 4 abuts against the upper edge of the protective cover 17, and at the same time, the upper edge of the protective cover 17 is inserted into the limiting groove 42 on the bottom side of the blocking plate 4 to block the heat dissipation port 15; At the same time, when the connecting rod 41 moves downward, the transmission rod 9 drives the locking rod 8 to move toward the direction close to the cross bar 11, and the end of the cross bar 11 can be inserted into the locking notch 81. In this state, the locking rod 8 locks the two ends of the cross bar 11, thereby improving the installation stability of the electrical components on the cross bar 11. In addition, during the downward movement of the connecting rod 41, the adjusting rod 7 drives the control rod 6 to slide in the direction close to the control button 31, so that the control rod 6 presses the control button 31 and turns off the cooling fan 3; in this state, the heat dissipation port 15 is blocked, the cooling fan 3 is turned off, and the cross bar 11 is in a locked state. The cable branch box only dissipates heat through the heat dissipation holes 13 on the bottom side of the box body 1, thereby reducing the possibility of external wind and sand entering the interior of the box body 1.

[0042] When the cable branch box is used in an environment with less wind and sand, the staff remotely controls the electric cylinder 51 to drive the connecting rod 41 to slide upward, the heat dissipation port 15 is reopened, the heat dissipation fan 3 is running, and the locks on both ends of the cross bar 11 are also released.

[0043] Unless otherwise defined, the terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The "first", "second", "third" and similar words used in this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and other similar words do not indicate a quantitative limit, but indicate that there is at least one. "Including" or "comprising" and other similar words mean that the elements or objects appearing in front of "including" or "comprising" cover the elements or objects listed after "including" or "comprising" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0044] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A cable branch box, comprising a box body (1) and a box door (2) arranged on the box body (1), wherein a plurality of cross bars (11) are fixedly arranged on the inner wall of the box body (1) facing the box door (2); characterized in that: A plurality of support rods (12) are fixedly arranged at the lower part of the box body (1), a heat dissipation hole (13) is opened on the bottom side of the box body (1), and a first filter screen (14) is fixedly arranged on the outer edge of the opening of the heat dissipation hole (13).

2. A cable branch box according to claim 1, characterized in that: A plurality of heat dissipation openings (15) are symmetrically provided on two opposite vertical side surfaces of the box body (1), and a protective cover (17) with an opening facing upward is fixedly provided on the inner edge of the opening of the heat dissipation opening (15) of the box body (1), and a second filter screen (18) is fixedly provided on the inner edge of the upper opening of the protective cover (17).

3. A cable branch box according to claim 2, characterized in that: The box body (1) is fixedly provided with a protective cover (16) with an opening facing downward on the outer edge of the opening of the heat dissipation port (15).

4. A cable branch box according to claim 2, characterized in that: A baffle plate (4) is arranged above the protective cover (17), and a connecting rod (41) is vertically fixed to the two ends of a plurality of the baffle plates (4), and the connecting rod (41) is slidably arranged on the inner wall of the box body (1); An adjusting member (5) for driving the connecting rod (41) to move is fixedly provided on the inner wall of the box body (1), and the blocking plate (4) can reciprocate in a direction close to the protective cover (17) and block the opening of the protective cover (17).

5. A cable branch box according to claim 4, characterized in that: A limiting recessed groove (42) is provided on the bottom opening edge of the baffle plate (4), and the upper edge of the protective cover (17) can be inserted into the limiting recessed groove (42).

6. A cable branch box according to claim 4, characterized in that: The adjusting member (5) comprises an electric cylinder (51) fixedly arranged on the inner wall of the box body (1) in the vertical direction, and the telescopic rod of the electric cylinder (51) is fixedly connected to the upper end of the connecting rod (41).

7. A cable branch box according to claim 4, characterized in that: A locking rod (8) is slidably provided on the inner wall of the box body (1) and is located at the end of the cross rod (11); a transmission rod (9) is hingedly connected to the side of the connecting rod (41); an end of the transmission rod (9) away from the connecting rod (41) is hingedly connected to one end of the locking rod (8); and a locking notch (81) is provided at the end of the locking rod (8) away from the transmission rod (9); When the connecting rod (41) slides up and down, the transmission rod (9) drives the locking rod (8) to move back and forth in a direction close to the cross rod (11), and the end of the cross rod (11) can be inserted into the locking notch (81).

8. A cable branch box according to claim 4, characterized in that: A cooling fan (3) is fixedly arranged on the inner wall of the cooling hole (13), and a control button (31) for controlling the cooling fan (3) is fixedly arranged on the bottom side of the box body (1).

9. A cable branch box according to claim 8, characterized in that: A control rod (6) is slidably arranged on the bottom side of the box body (1), an adjusting rod (7) is hingedly connected to one end of the control rod (6) facing the connecting rod (41), and an end of the adjusting rod (7) away from the control rod (6) is hingedly connected to the lower end of the connecting rod (41); When the blocking plate (4) moves downward along with the connecting rod (41) to block the opening of the protective cover (17), the adjusting rod (7) drives the control rod (6) to press the control button (31) to turn off the cooling fan (3).

10. A cable branch box according to claim 9, characterized in that: An elastic pad (61) is fixedly provided on the end of the control rod (6) facing the control button (31).

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