Energy-saving and environment-friendly low-voltage cable branch box

Abstract

The application relates to the technical field of cable branch boxes, in particular to an energy-saving and environment-friendly low-voltage cable branch box, which comprises a cable branch box main body and a junction box fixedly installed on the cable branch box main body, an electric telescopic rod is fixedly installed on the outer wall of the junction box, and the output end of the electric telescopic rod is fixedly connected with a first moving frame. The first contact blocks corresponding to the multiple rows of cable lines are arranged at different compactness degrees, so that the time points of the multiple second sliding blocks with the cable lines are different, the multiple second sliding blocks are moved, multiple cable lines from top to bottom are intermittently bent and deformed at different time points, the upper heat dissipation fan blows from top to bottom, the multiple cable lines can be evenly blown on the surfaces of the multiple cable lines, the originally overlapped cable lines are not in the overlapped state at the same time point, and the blowing and heat dissipation efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cable branch box, in particular to an energy-saving and environment-friendly low-voltage cable branch box. BACKGROUND

[0002] The energy-saving and environment-friendly low-voltage cable branch box is a new type of power equipment used in low-voltage power distribution network, mainly used for multi-branching, power distribution, metering and protection of main cables. Compared with the traditional branch box, its core feature is "energy saving" and "environmental protection".

[0003] The energy-saving and environment-friendly low-voltage cable branch box on the market currently, after the cable is connected, since the connection end needs to be connected to multiple main cables, the main cable contains dozens of copper core wires, therefore, when high-power power transmission is performed, heat is easily generated, however, when the heat of multiple cables is accumulated together, safety hazards are easily caused, and the cables are blocked from each other, only setting a heat dissipation fan is easily blocked by the parallel cables, resulting in weak heat dissipation efficiency, if multiple direction heat dissipation fans are set, air flow is easily interfered, and heat dissipation efficiency is poor, therefore, an energy-saving and environment-friendly low-voltage cable branch box is needed to solve the problem. SUMMARY

[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: an energy-saving and environment-friendly low-voltage cable branch box, comprising a cable branch box main body and a junction box fixedly installed on the cable branch box main body, an electric telescopic rod is fixedly installed on the outer wall of the junction box, a first moving frame is fixedly connected to the output end of the electric telescopic rod, a plurality of first guide rods are fixedly connected to the outer wall of the first moving frame, a first sliding block is fixedly connected to one end of the first guide rod, a second moving frame is slidably sleeved on the outer wall of the first sliding block, a second guide rod is fixedly connected to the inner wall of the second moving frame, a second sliding block is slidably sleeved on the outer wall of the second guide rod, and a cable is slidably connected to the inner wall of the second sliding block.

[0005] Preferably, a terminal block is fixedly installed on the inner wall of the junction box, and the cable is fixedly installed on the terminal block; a heat dissipation fan is fixedly installed on the junction box, and a dust screen is fixedly installed on the blowing end of the heat dissipation fan.

[0006] Preferably, a sliding groove is formed in the second moving frame, the first sliding block is slidably connected to the inner wall of the sliding groove, two first return springs are fixedly connected to the inner wall of the sliding groove, and one end of the first return spring is fixedly connected to the outer wall of the first sliding block.

[0007] Preferably, two second return springs are sleeved on the second guide rod, one end of the second return spring is fixedly connected to the inner wall of the second moving frame, and the other end of the second return spring is fixedly connected to the outer wall of the second sliding block.

[0008] Preferably, the outer wall of the second sliding block is fixedly connected with a second abutting block, and the second abutting block is provided in a spherical shape.

[0009] Preferably, the inner wall of the second moving frame is slidably connected with a third guide rod, a third return spring is sleeved on the third guide rod, one end of the third return spring is fixedly connected with the outer wall of the second moving frame, and the other end of the third return spring is fixedly connected with a third abutting block.

[0010] Preferably, two abutting inclined surfaces are formed in the third abutting block, and one end of the third guide rod is fixedly connected with the outer wall of the third abutting block.

[0011] Preferably, the outer wall of the third abutting block is fixedly connected with a fourth guide rod, and a ball is rotatably installed at one end of the fourth guide rod.

[0012] Preferably, the inner wall of the junction box is fixedly connected with a plurality of fixed plates, the outer wall of the fixed plate is fixedly connected with a plurality of first abutting blocks, and the first abutting block is provided in a spherical shape.

[0013] Preferably, a hinged door is hingedly installed on the outer wall of the cable branch box body, and a plurality of ventilation grooves are formed in the outer wall of the cable branch box body.

[0014] A slope is fixedly connected to the cable branch box body, a door lock is fixedly installed on the outer wall of the cable branch box body, and a main circuit breaker is fixedly installed on the inner wall of the cable branch box body.

[0015] A mounting vertical frame is fixedly installed on the inner wall of the cable branch box body, a plurality of branch circuit breakers are fixedly installed on the mounting vertical frame, the branch circuit breakers are electrically connected with the main circuit breaker, and a plurality of copper bars are fixedly installed on the branch circuit breakers.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] 1、In the present application, with the movement of the second moving frame, with the mutual moving away of the two second sliding blocks, the two second sliding blocks horizontally bend the cable lines on the inner walls, so that the cable lines are bent and deformed, the cable lines are arranged in multiple rows from top to bottom, the first abutting blocks corresponding to the multiple rows of cable lines are arranged with different compactness, so that the time points of the bending of the multiple second sliding blocks with the cable lines are different, and when the multiple second sliding blocks move, the multiple cable lines from top to bottom are intermittently bent and deformed at different time points, so that when the upper heat dissipation fan blows from top to bottom, the multiple cable lines can be uniformly blown on the surfaces of the multiple cable lines, the originally overlapping cable lines are no longer in the overlapping state at the same time point, and the blowing and heat dissipation efficiency is greatly improved.

[0018] 2. In this invention, as the third contact block continues to move upward, the third contact block will bring the entire second moving frame upward under force, and the second moving frame will slide along the outer wall of the first slider with the slide groove, and compress and tighten the first return spring. At this time, the cable is pressed upward and deformed. The upwardly bent and deformed cable can make the airflow blowing towards it obstructed and diffuse heat in more directions, thereby increasing the heat dissipation efficiency in the junction box.

[0019] 3. In this invention, when the electric telescopic rod is activated, the second moving frame moves and moves synchronously with the two second sliders. The inner wall of the second slider will scrape along the outer wall of the cable, which can remove dust and attached impurities from the outer wall of the cable and prevent impurities from sticking to the outside of the cable and causing poor heat dissipation. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall cross-sectional structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the overall rear view structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the junction box structure of the present invention;

[0024] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the middle;

[0025] Figure 6 This is a schematic cross-sectional view of the junction box structure of the present invention;

[0026] Figure 7 This is a schematic diagram of the overall rear cross-sectional structure of the present invention;

[0027] Figure 8 This is a schematic diagram of the second movable frame and its surrounding enlarged structure according to the present invention.

[0028] The attached diagram lists the components represented by each number as follows:

[0029] 1, cable branch box main body; 2, door lock; 3, inclined roof; 5, air slot; 6, hinged door; 7, main circuit breaker; 8, copper bar; 9, branch circuit breaker; 10, installation vertical frame; 11, junction box; 12, cooling fan; 13, dust screen; 14, fixed plate; 15, first abutting block; 16, electric telescopic rod; 17, first moving frame; 18, second moving frame; 19, terminal block; 20, cable; 21, first guide rod; 22, first sliding block; 23, sliding groove; 24, first return spring; 25, second guide rod; 26, second sliding block; 27, second return spring; 28, second abutting block; 29, third guide rod; 30, third return spring; 31, third abutting block; 32, abutting inclined surface; 33, fourth guide rod; 34, ball. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0031] Embodiment one: the present embodiment promotes to solve the problem that when multiple cables accumulate heat together, there is a potential safety hazard, and the cables block each other, only setting a cooling fan can be easily blocked by the side-by-side cables, resulting in weak cooling efficiency, and if multiple direction cooling fans are set, the cooling air flow is easily interfered, resulting in poor cooling efficiency, please refer to Figure 1 Figure 8 An energy-saving and environment-friendly low-voltage cable branch box, comprising a cable branch box main body 1 and a junction box 11 fixedly installed on the cable branch box main body 1, wherein the outer wall of the junction box 11 is fixedly installed with an electric telescopic rod 16, the output end of the electric telescopic rod 16 is fixedly connected with a first moving frame 17, the first moving frame 17 moves with the output end after the electric telescopic rod 16 is started, the first moving frame 17 moves synchronously with the first guide rod 21 on the outer wall, the outer wall of the first moving frame 17 is fixedly connected with multiple first guide rods 21, one end of the first guide rod 21 is fixedly connected with a first sliding block 22, the outer wall of the first sliding block 22 is slidably sleeved with a second moving frame 18, the inner wall of the second moving frame 18 is fixedly connected with a second guide rod 25, the outer wall of the second guide rod 25 is slidably sleeved with a second sliding block 26, and the inner wall of the second sliding block 26 is slidably connected with a cable 20.

[0032] The inner wall of the junction box 11 is fixedly installed with a terminal block 19, and the cable 20 is fixedly installed on the terminal block 19; the junction box 11 is fixedly installed with a cooling fan 12, and the blowing end of the cooling fan 12 is fixedly installed with a dust screen 13.

[0033] ​The second guide rod 25 is sleeved with two second return springs 27, one end of the second return spring 27 is fixedly connected with the inner wall of the second moving frame 18, and the other end of the second return spring 27 is fixedly connected with the outer wall of the second sliding block 26.

[0034] The outer wall of the second sliding block 26 is fixedly connected with a second abutting block 28, and the second abutting block 28 is provided in a spherical shape.

[0035] The inner wall of the second moving frame 18 is slidably connected with a third guide rod 29, the third guide rod 29 is sleeved with a third return spring 30, one end of the third return spring 30 is fixedly connected with the outer wall of the second moving frame 18, and the other end of the third return spring 30 is fixedly connected with a third abutting block 31.

[0036] Two abutting inclined surfaces 32 are formed in the third abutting block 31, one end of the third guide rod 29 is fixedly connected with the outer wall of the third abutting block 31, and as the third abutting block 31 continues to move upward, the third abutting block 31 will bear the force upward with the entire second moving frame 18, and the second moving frame 18 will slide along the outer wall of the first sliding block 22, and gradually stretch the first return spring 24, at this time, the cable 20 is pressed and deformed in part upward, and the cable 20 which is deformed and bent upward can make the airflow blown to it blocked and diffuse in more directions.

[0037] The outer wall of the third abutting block 31 is fixedly connected with a fourth guide rod 33, and one end of the fourth guide rod 33 is rotatably installed with a ball 34.

[0038] The inner wall of the junction box 11 is fixedly connected with a plurality of fixed plates 14, the outer wall of the fixed plate 14 is fixedly connected with a plurality of first abutting blocks 15, the first abutting block 15 is provided in a spherical shape, and when the plurality of second sliding blocks 26 move, a plurality of cable lines 20 from top to bottom are intermittently bent and deformed at different time points, so that when the upper air cooling fan 12 blows from top to bottom, it can be uniformly blown on the surface of the plurality of cable lines 20, and the originally overlapped cable lines 20 are no longer in an overlapped state at the same time point, so that the blowing and cooling efficiency is greatly improved.

[0039] The outer wall of the cable branch box body 1 is hingedly installed with a hinged door 6, and the outer wall of the cable branch box body 1 is provided with a plurality of air ventilation grooves 5.

[0040] The cable branch box body 1 is fixedly connected with an inclined roof 3, the outer wall of the cable branch box body 1 is fixedly installed with a door lock 2, and the inner wall of the cable branch box body 1 is fixedly installed with a main circuit breaker 7.

[0041] The inner wall of the cable branch box body 1 is fixedly installed with a mounting vertical frame 10, a plurality of branch circuit breakers 9 are fixedly installed on the mounting vertical frame 10, the branch circuit breaker 9 is electrically connected with the main circuit breaker 7, and a plurality of copper bars 8 are fixedly installed on the branch circuit breaker 9.

[0042] In this embodiment: when using the energy-saving and environment-friendly low-voltage cable branch box, the maintenance and cable connection operation can be performed by opening the hinged door 6, wherein the main circuit breaker 7 can control the on-off state of the entire branch box, and then a plurality of branch circuit breakers 9 can control the on-off of a plurality of branch devices; the outer side of the cable branch box body 1 is provided with a plurality of ventilation grooves 5, which can increase the heat dissipation efficiency.

[0043] When using the cable branch box, first, the external main cable needs to be connected to the terminal block 19, and during the connection process, the cable 20 needs to pass through a plurality of second sliding blocks 26;

[0044] After the cable 20 is connected, in order to keep the temperature in the terminal box 11 normal during normal operation of the cable branch box body 1, two cooling fans 12 need to be started, and after the two cooling fans 12 are started, external air is drawn and blown into the terminal box 11, and before the external air enters the terminal box 11, it is filtered by the dust screen 13 to prevent pollution of the inside of the terminal box 11.

[0045] With the start of the cooling fan 12, the outer wall of the plurality of cables 20 will be blown, which can take away the heat around the cable 20 and finally transfer it to the outside for heat exchange.

[0046] The electric telescopic rod 16 can be started, and after the electric telescopic rod 16 is started, the first moving frame 17 at the output end moves, and when the first moving frame 17 moves, the first guide rod 21 at the outer wall moves synchronously, and the movement of the first guide rod 21 moves the second moving frame 18 synchronously, and after the second moving frame 18 moves, the two second sliding blocks 26 move synchronously, and the inner wall of the second sliding block 26 will be scraped along the outer wall of the cable 20, which can scrape off the dust and attached impurities on the outer wall of the cable 20, preventing the impurities from adhering to the cable 20, which can cause poor heat dissipation.

[0047] With the movement of the second moving frame 18, the second moving frame 18 moves synchronously with the third abutting block 31, so that the fourth guide rod 33 at the outer wall of the third abutting block 31 moves, and when the fourth guide rod 33 moves, the ball 34 moves synchronously, and in the movement track, the ball 34 will abut against the outer wall of the first abutting block 15, which will cause the ball 34, the fourth guide rod 33 and the third abutting block 31 to move upward under stress, which will cause the abutting slope 32 at the outer wall of the third abutting block 31 to abut against the second abutting block 28, which will cause the second abutting block 28 to move away from each other under stress with the two second sliding blocks 26, and the two second sliding blocks 26 move away from each other along the guide of the second guide rod 25, and in this process, the second sliding block 26 will extrude the second return spring 27, so that the second return spring 27 is gradually compressed and tightened.

[0048] When the two second sliders 26 move away from each other, the two second sliders 26 bend the cable 20 on the inner wall of each second slider 26, so that the cable 20 is bent and deformed. It should be noted that the cable 20 is provided with multiple rows from top to bottom, and the multiple rows of cable 20 correspond to the first contact block 15 arranged in different degrees of compactness, so that the multiple second sliders 26 bend the cable 20 at different time points, which causes the multiple second sliders 26 to move, so that the multiple cables 20 from top to bottom are intermittently bent and deformed at different time points, so that the upper heat dissipation fan 12 blows from top to bottom, and can be uniformly blown on the surface of the multiple cables 20. The cables 20 originally overlapped are no longer in an overlapping state at the same time point, so that the blowing and heat dissipation efficiency is greatly improved.

[0049] Embodiment two: This embodiment is an improvement based on embodiment one. For details, please refer to Figure 1 - Figure 8 The second moving frame 18 is provided with a sliding groove 23, the first slider 22 is slidingly connected to the inner wall of the sliding groove 23, and the inner wall of the sliding groove 23 is fixedly connected with two first return springs 24, one end of the first return spring 24 is fixedly connected with the outer wall of the first slider 22.

[0050] In this embodiment: after the ball 34 comes into contact with the surface of the first contact block 15, when the third contact block 31 moves upward to a certain height, at this time the third guide rod 29 will slide to the end along the inner wall of the second moving frame 18, at this time the third contact block 31 will continue to move upward, the third contact block 31 will be forced upward with the entire second moving frame 18, the second moving frame 18 will slide along the outer wall of the first slider 22 with the sliding groove 23, and gradually stretch the first return spring 24, at this time the cable 20 is pressed and deformed upward, the cable 20 bent and deformed upward can make the airflow blowing to it blocked and diffuse heat in more directions, so that the heat dissipation efficiency in the junction box 11 is increased.

[0051] It should be noted that, in the present document, the terms such as first and second, and the like, are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between such entities or operations. In addition, the terms "comprising", "containing" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or equipment.

[0052] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary of the principles and application of the present application. Numerous modifications and adaptions can be effected without departing from the spirit and scope of the present application, which is not limited to the exact construction and arrangement described. It is intended, therefore, to cover all modifications and adaptions that fall within the scope of the claims and their equivalents.

Claims

1. An energy-saving and environmentally friendly low-voltage cable branch box, characterized in that, The cable branch box includes a main body (1) and a junction box (11) fixedly installed on the main body (1). An electric telescopic rod (16) is fixedly installed on the outer wall of the junction box (11). A first movable frame (17) is fixedly connected to the output end of the electric telescopic rod (16). Multiple first guide rods (21) are fixedly connected to the outer wall of the first movable frame (17). A first slider (22) is fixedly connected to one end of the first guide rod (21). A second movable frame (18) is slidably sleeved on the outer wall of the first slider (22). A second guide rod (25) is fixedly connected to the inner wall of the second movable frame (18). A second slider (26) is slidably sleeved on the outer wall of the second guide rod (25). A cable (20) is slidably connected to the inner wall of the second slider (26). Two second return springs (27) are sleeved on the second guide rod (25). One end of the second return spring (27) is fixedly connected to the inner wall of the second moving frame (18), and the other end of the second return spring (27) is fixedly connected to the outer wall of the second slider (26). The outer wall of the second slider (26) is fixedly connected to the second abutment block (28); The inner wall of the second movable frame (18) is slidably connected to a third guide rod (29), and a third return spring (30) is sleeved on the third guide rod (29). The other end of the third return spring (30) is fixedly connected to a third abutment block (31); The third contact block (31) has two contact ramps (32). The outer wall of the third contact block (31) is fixedly connected to a fourth guide rod (33), and a ball bearing (34) is rotatably installed at one end of the fourth guide rod (33). The inner wall of the junction box (11) is fixedly connected with a plurality of fixing plates (14), and the outer wall of the fixing plates (14) is fixedly connected with a plurality of first contact blocks (15), the first contact blocks (15) being configured as spherical shapes.

2. The energy-saving and environmentally friendly low-voltage cable branch box according to claim 1, characterized in that: A junction box (19) is fixedly installed on the inner wall of the junction box (11), and the cable (20) is fixedly installed on the junction box (19); a cooling fan (12) is fixedly installed on the junction box (11), and a dust filter (13) is fixedly installed on the blowing end of the cooling fan (12).

3. The energy-saving and environmentally friendly low-voltage cable branch box according to claim 1, characterized in that: The second movable frame (18) is provided with a sliding groove (23), and the first slider (22) is slidably connected to the inner wall of the sliding groove (23). Two first return springs (24) are fixedly connected to the inner wall of the sliding groove (23), and one end of the first return spring (24) is fixedly connected to the outer wall of the first slider (22).

4. The energy-saving and environmentally friendly low-voltage cable branch box according to claim 1, characterized in that: The second contact block (28) is set as a spherical block.

5. The energy-saving and environmentally friendly low-voltage cable branch box according to claim 1, characterized in that: One end of the third reset spring (30) is fixedly connected to the outer wall of the second moving frame (18).

6. The energy-saving and environmentally friendly low-voltage cable branch box according to claim 1, characterized in that: One end of the third guide rod (29) is fixedly connected to the outer wall of the third abutment block (31).

7. The energy-saving and environmentally friendly low-voltage cable branch box according to claim 1, characterized in that: The outer wall of the cable branch box body (1) is hinged with a hinged door (6), and the outer wall of the cable branch box body (1) is provided with multiple ventilation slots (5). A sloping top (3) is fixedly connected to the main body (1) of the cable branch box, a door lock (2) is fixedly installed on the outer wall of the main body (1), and a main circuit breaker (7) is fixedly installed on the inner wall of the main body (1). The inner wall of the cable branch box body (1) is fixedly installed with an installation frame (10), and multiple branch circuit breakers (9) are fixedly installed on the installation frame (10). The branch circuit breakers (9) are electrically connected to the main circuit breaker (7), and multiple copper busbars (8) are fixedly installed on the branch circuit breakers (9).

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