Extensible distribution box

Abstract

The utility model relates to the technical field of distribution boxes, in particular to an extensible distribution box which is internally provided with a main box body, and a positioning rack is fixedly arranged on the rear end face of the main box body. According to the utility model, the rotating motor is started to drive the rotating shaft and the rotating fan blades to rotate at a high speed, so that the supporting rack and the expansion rack are driven to move upwards along the main box body, and when a certain height is reached, it is ensured that the auxiliary positioning plate and the expansion rack can be fixed to an appointed number of electricity meters. And outside air is extracted from the lower part of the air inlet filter plate, enters an air extraction cavity from the air inlet filter plate, then flows into an auxiliary positioning plate and is exhausted to the outside from an exhaust filter plate, so that air circulation in the expandable distribution box is ensured, heat dissipation of an electric meter is facilitated, and the service life of the electric meter is prolonged. And the butt joint of damp air in the extensible distribution box is prevented, so that the service life of the electric meter is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution boxes, in particular to an expandable distribution box. Background Art

[0002] The distribution box is a low-voltage power distribution device that assembles switchgear, measuring instruments, protective devices and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to the requirements of electrical wiring. During normal operation, the circuit can be connected or disconnected by manual or automatic switches. The current distribution box has a fixed volume and storage space. During use, it is impossible to adjust the storage space in real time according to the number of meters, so the practicality and flexibility are relatively poor. Moreover, since most existing distribution boxes have a fixed volume, it is not convenient for subsequent transportation. Summary of the invention

[0003] The purpose of the utility model is to provide an expandable distribution box to overcome the above-mentioned defects in the prior art.

[0004] According to the utility model, an expandable distribution box includes a main box body, a positioning frame is fixedly provided on the rear end face of the main box body, a pneumatic telescopic rod which is symmetrical and telescopically movable is fixedly provided on the upper end face of the positioning frame, a supporting frame is fixedly provided on the other end of the pneumatic telescopic rod, an expansion rack is fixedly provided on the front end face of the supporting frame and is inserted into the main box body, three groups of evenly distributed auxiliary positioning plates are fixedly provided on the upper end face of the main box body, a one-to-one corresponding main positioning plate is provided on the rear side of the auxiliary positioning plate, the upper end face of the main positioning plate is fixedly connected to the lower end face of the expansion rack, and there is a certain gap between the main positioning plate and the auxiliary positioning plate.

[0005] In some embodiments, a plurality of evenly distributed guide holes are fixedly disposed on the upper end surface of the expansion rack.

[0006] In some embodiments, a storage cavity opening forward is provided in the main housing, an air extraction cavity is provided in the main housing and is interconnected with the storage cavity, and a rotating shaft is rotatably provided in the air extraction cavity.

[0007] In some embodiments, a rotating motor is fixedly provided in the main housing, rotating blades are fixedly provided on the outer circumferential surface of the rotating shaft, and the upper end surface of the rotating shaft is dynamically connected to the rotating motor.

[0008] In some embodiments, an air intake filter plate is fixedly provided on the lower end surface of the main housing and corresponds to the air extraction cavity.

[0009] In some embodiments, left and right symmetrical exhaust filter plates are fixedly provided in the left and right walls of the storage chamber respectively, and left and right symmetrical flip doors are rotatably provided on the front end surface of the expansion rack.

[0010] Compared with the prior art, the advantages of the utility model are:

[0011] 1. The utility model starts to extend through the left-right symmetrical pneumatic telescopic rod, which drives the supporting frame and the extension frame to move upward along the main box body. When a certain height is reached, it ensures that the auxiliary positioning plate and the extension frame can be fixed to a specified number of electric meters, and then they are fixed to the front end surfaces of the main positioning plate and the auxiliary positioning plate in turn. The wires extend from the guide holes to the outside, thereby realizing the expansion and adjustment of the distribution box. The pneumatic telescopic rod can be extended and the above steps can be repeated, which is convenient for adding electric meters inside later. Furthermore, since the volume of the expandable distribution box can be changed, it is further convenient for transportation, thereby saving space.

[0012] 2. The utility model starts by rotating the motor, which drives the rotating shaft and the rotating fan blades to rotate at high speed, and then draws the outside air from below the air intake filter plate into the air extraction chamber from the air intake filter plate, and then flows into the auxiliary positioning plate, and is discharged back to the outside from the exhaust filter plate, thereby ensuring the circulation of air in the expandable distribution box, which is convenient for the heat dissipation of the electric meter, and prevents the docking of humid air inside the expandable distribution box, thereby extending the service life of the electric meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a left view of the utility model;

[0014] Figure 2 It is a right view of the utility model;

[0015] Figure 3 It is a rear view of the utility model;

[0016] Figure 4 It is a front view of the utility model;

[0017] Figure 5 This utility model Figure 4 Schematic diagram of AA.

[0018] In the figure:

[0019] 11. Main box; 12. Positioning rack; 13. Pneumatic telescopic rod; 14. Support rack; 15. Extension rack; 16. Guide hole; 17. Flip door; 18. Exhaust filter plate; 19. Main positioning plate; 20. Storage chamber; 21. Auxiliary positioning plate; 22. Rotating motor; 23. Rotating shaft; 24. Rotating fan blades; 25. Inlet filter plate; 26. Exhaust chamber. Implementation

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0021] See also Figure 1-Figure 5 , is the first embodiment of the utility model, which provides an embodiment of an expandable distribution box, including a main box body 11, a positioning frame 12 is fixedly provided on the rear end face of the main box body 11, and a pneumatic telescopic rod 13 which is symmetrical and telescopic is fixedly provided on the upper end face of the positioning frame 12, and a supporting frame 14 is fixedly provided on the other end of the pneumatic telescopic rod 13, and an expansion frame 15 is fixedly provided on the front end face of the supporting frame 14 and is inserted into the main box body 11, and the expansion frame 15 is thereby ensured to expand the number of stored electric meters, and three groups of evenly distributed auxiliary positioning plates 21 are fixedly provided on the upper end face of the main box body 11, and a main positioning plate 19 corresponding to each other is provided on the rear side of the auxiliary positioning plate 21, and the upper end face of the main positioning plate 19 is fixedly connected to the lower end face of the expansion frame 15, and there is a certain gap between the main positioning plate 19 and the auxiliary positioning plate 21, thereby ensuring that sufficient space is left for the fixation of the electric meter.

[0022] A plurality of evenly distributed guide holes 16 are fixedly provided on the upper end surface of the extension rack 15, a storage cavity 20 opening forward is provided in the main box body 11, an air extraction cavity 26 is provided in the main box body 11 and is interconnected with the storage cavity 20, a rotating shaft 23 is rotatably provided in the air extraction cavity 26, a rotating motor 22 is fixedly provided in the main box body 11, a rotating fan blade 24 is fixedly provided on the outer circumference of the rotating shaft 23, and the rotating fan blade 24 plays a role of cooling and moisture-proofing, the upper end surface of the rotating shaft 23 is dynamically connected to the rotating motor 22, an air intake filter plate 25 is fixedly provided on the lower end surface of the main box body 11 and corresponds to the air extraction cavity 26, and the air extraction cavity 26 plays a role of filtering dust, left-right symmetrical exhaust filter plates 18 are respectively fixedly provided on the left and right walls of the storage cavity 20, and a left-right symmetrical flip door 17 is rotatably provided on the front end surface of the extension rack 15.

[0023] Specific workflow:

[0024] According to the number of electricity meters of the user, the left-right symmetrical pneumatic telescopic rod 13 begins to extend, thereby driving the supporting frame 14 and the expansion frame 15 to start moving upward along the main box body 11. When a certain height is reached, it ensures that the auxiliary positioning plate 21 and the expansion frame 15 can be fixed to a specified number of electricity meters, and then fixed to the front end surfaces of the main positioning plate 19 and the auxiliary positioning plate 21 in turn. The wires begin to extend from the guide hole 16 to the outside, thereby realizing the expansion and adjustment of the distribution box, and the retractable pneumatic telescopic rod 13 repeats the above steps, thereby facilitating the subsequent addition of electricity meters inside. Furthermore, since the volume of the expandable distribution box can be changed, it is further convenient for transportation, thereby saving space.

[0025] Once the electric meter has been running for a long time, the rotating motor 22 starts to start, and then drives the rotating shaft 23 and the rotating fan blades 24 to start rotating at high speed, and then draws outside air from under the air intake filter plate 25, enters the air extraction chamber 26 from the air intake filter plate 25, and then flows into the auxiliary positioning plate 21, and is discharged back to the outside from the exhaust filter plate 18, thereby ensuring the circulation of air in the expandable distribution box, thereby facilitating the heat dissipation of the electric meter, and preventing the connection of humid air inside the expandable distribution box, thereby extending the service life of the electric meter.

[0026] The above description is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. An expandable distribution box, comprising a main box body (11), characterized in that: A positioning frame (12) is fixedly provided on the rear end face of the main box (11); a pneumatic telescopic rod (13) which is bilaterally symmetrical and capable of telescopic movement is fixedly provided on the upper end face of the positioning frame (12); a supporting frame (14) is fixedly provided on the other end of the pneumatic telescopic rod (13); an expansion frame (15) is fixedly provided on the front end face of the supporting frame (14) and is inserted into the main box (11); and three sets of evenly distributed auxiliary positioning plates (21) are fixedly provided on the upper end face of the main box (11); A corresponding main positioning plate (19) is provided on the rear side of the auxiliary positioning plate (21); the upper end surface of the main positioning plate (19) is fixedly connected to the lower end surface of the expansion rack (15); and a certain gap exists between the main positioning plate (19) and the auxiliary positioning plate (21).

2. An expandable distribution box according to claim 1, characterized in that: The upper end surface of the expansion rack (15) is fixedly provided with a plurality of evenly distributed guide holes (16).

3. The expandable distribution box according to claim 1, characterized in that: A storage cavity (20) opening forward is provided in the main box body (11), an air extraction cavity (26) is provided in the main box body (11) and is in communication with the storage cavity (20), and a rotating shaft (23) is rotatably provided in the air extraction cavity (26).

4. The expandable distribution box according to claim 3, characterized in that: A rotating motor (22) is fixedly disposed in the main housing (11), rotating blades (24) are fixedly disposed on the outer circumferential surface of the rotating shaft (23), and the upper end surface of the rotating shaft (23) is dynamically connected to the rotating motor (22).

5. The expandable distribution box according to claim 3, characterized in that: An air intake filter plate (25) is fixedly provided on the lower end surface of the main box body (11) and corresponds to the air extraction cavity (26), and left and right symmetrical exhaust filter plates (18) are fixedly provided in the left and right walls of the storage cavity (20).

6. The expandable distribution box according to claim 1, characterized in that: The front end surface of the expansion rack (15) is rotatably provided with a left-right symmetrical flip door (17).

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