Miniature distribution box with state display

Abstract

The utility model discloses a small-sized distribution box with state display, which comprises a box body with an opening at the front side, a screw rod transmission mechanism is arranged in the box body, the box body is detachably connected with an installation rail with a U-shaped cross section through the screw rod transmission mechanism, two side edges of the installation rail extend outwards, the installation rail is used for clamping a circuit breaker, and the circuit breaker can slide along the installation rail; the box body is connected with a cover plate through screws, one side of the cover plate is provided with a display window, one side edge in the box body is connected with a detection box through screws, the detection box is electrically connected with the circuit breaker, the detection box is provided with a display screen which is used for displaying voltage and current information of the distribution box, and the display screen is located in the display window. The detection box is arranged on the side surface, so that the original circuit breaker installation wiring space is not reduced, additional space for installation of the detection box is not needed, and the production and manufacturing cost is reduced; the state of the distribution box can be visually displayed through interconnection between the detection box and the circuit breaker, so that the trouble of disassembling a cover for inspection during line maintenance is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of distribution boxes, in particular to a small distribution box with a status display. Background Art

[0002] The distribution box is a low-voltage distribution device that assembles switchgear, measuring instruments, protective electrical appliances and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to electrical wiring requirements. It can reasonably distribute electrical energy and has a high level of safety protection.

[0003] Current distribution boxes have the following problems: (1) When performing simple line maintenance, the outer cover must be opened to inspect and maintain the distribution box, which results in low maintenance efficiency; (2) Circuit breakers are mostly fixed to the distribution box by screws, and the circuit breakers are generally installed near the bottom of the distribution box. Workers need to extend their hands into the distribution box and cannot move the installation location outside the distribution box, resulting in inconvenience in installation and removal; (3) After the circuit breaker is installed in the distribution box, there is no gap between the circuit breaker and the distribution box, which is not conducive to the layout of the lines inside the distribution box. If a bracket is installed in the distribution box and the circuit breaker is installed on the bracket, there is a gap between the circuit breaker and the distribution box, but the gap cannot be adjusted. If there are too many lines, it is difficult for the wires to pass through the gap. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a small distribution box with a status display to solve the problems mentioned in the above background technology.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A small distribution box with status display comprises a box body with an opening at the front side, a screw drive mechanism is arranged in the box body, and a mounting rail with a U-shaped cross-section is detachably connected through the screw drive mechanism, and both sides of the mounting rail extend outwardly, the mounting rail is used for clamping a circuit breaker, and the circuit breaker can slide along the mounting rail; a cover plate is connected to the box body by screws, a display window is arranged on one side of the cover plate, a detection box is connected to one side of the box body by screws, the detection box is electrically connected to the circuit breaker, a display screen is arranged on the detection box, and is used for displaying voltage and current information of the distribution box, and the display screen is located in the display window.

[0007] Preferably, the screw transmission mechanism includes a bearing plate connected to the opposite side walls of the box, a screw rotatably connected to one of the bearing plates and the rear wall of the box, a guide rod connected to the other bearing plate and the rear wall of the box, a transmission plate threadedly connected to the screw, a slide plate slidably connected to the guide rod, and a handle connected to the outer end of the screw, the handle is located on the inner side of the cover plate, screw holes are provided on the transmission plate and the slide plate, screw holes are also provided at both ends of the mounting rail, and the mounting rail is mounted on the transmission plate and the slide plate by screws.

[0008] Preferably, a transparent plate is connected to the front side of the cover plate, and the transparent plate is aligned with the mounting rail.

[0009] Preferably, the top and the bottom of the box body are provided with lead holes for accommodating the wires to pass through.

[0010] Preferably, the mounting rail includes a first guide rail, a connecting plate fixedly connected to both ends of the first guide rail, and a second guide rail slidably connected to the first guide rail, the two connecting plates are respectively connected to the transmission plate and the slide plate by screws, a sliding groove is provided on the side of the first guide rail facing the second guide rail, one side of the second guide rail is slidably connected to the sliding groove, both ends of the second guide rail maintain a gap with the two connecting plates so that the second guide rail can slide, and the first guide rail and the second guide rail are fixed by screws.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] (1) Placing the detection box on the side will not reduce the original circuit breaker installation and wiring space, and no additional space is required for the installation of the detection box, thereby reducing the manufacturing cost; the detection box can intuitively display the status of the distribution box by interconnecting with the circuit breaker, thereby reducing the trouble of removing the cover for inspection during line maintenance.

[0013] (2) The mounting rail is installed on the screw drive mechanism. Through the operation of the screw drive mechanism, the mounting rail can be moved back and forth in the box to adjust the distance between the circuit breaker and the rear wall of the box, which is convenient for the wire to pass through and facilitates wiring.

[0014] (3) By driving the mounting rail forward through the screw transmission mechanism, the installation position of the circuit breaker can be moved toward the outside of the box, which is convenient for the installation of the circuit breaker. In addition, the circuit breaker is clamped on the mounting rail without the need for screw fixation, which improves the convenience of installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the utility model after removing the cover plate;

[0017] Figure 3 It is a schematic diagram of the detection box;

[0018] Figure 4 is a top view of the mounting rail;

[0019] Figure 5 is a cross-sectional view of the mounting rail;

[0020] Figure 6 Schematic diagram of the circuit breaker;

[0021] Figure 7 This is a schematic diagram of the circuit breaker being installed on the mounting rail;

[0022] Figure 8 This is the circuit schematic diagram of the detection box and the circuit breaker;

[0023] In the figure: 1-box, 2-mounting rail, 201 first guide rail, 202-connecting plate, 203-second guide rail, 3-circuit breaker, 301-bayonet, 302-card slot, 4-cover plate, 5-detection box, 6-display screen, 7-bearing plate, 8-screw rod, 9-transmission plate, 10-handle, 11-transparent plate, 12-lead hole, 13-current transformer. DETAILED DESCRIPTION

[0024] 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.

[0025] Example 1

[0026] See also Figure 1 and Figure 2 A small distribution box with status display includes a box body 1 with a front opening, a screw transmission mechanism is arranged in the box body 1, and a mounting rail 2 with a U-shaped cross section is detachably connected through the screw transmission mechanism. Specifically, the screw transmission mechanism includes a bearing plate 7 connected to the opposite side walls of the box body 1, a screw 8 rotatably connected to one of the bearing plates and the rear wall of the box body, a guide rod connected to the other bearing plate and the rear wall of the box body, a transmission plate 9 threadedly connected to the screw rod, a slide plate slidably connected to the guide rod, and a handle 10 connected to the outer end of the screw rod. The handle 10 is located on the inner side of the cover plate 4. The transmission plate 9 and the slide plate are both provided with screw holes. The two ends of the mounting rail 2 are also provided with screw holes. The mounting rail 2 is installed on the transmission plate 9 and the slide plate by screws. Turning the handle 10 drives the screw rod 8 to rotate, which can drive the transmission plate 9 to move along the screw rod 8, so that the mounting rail 2 moves forward to facilitate the installation of the circuit breaker.

[0027] In this embodiment, both sides of the mounting rail 2 extend outwards, and the mounting rail 2 is used to mount the circuit breaker 3, and the circuit breaker 3 can slide along the mounting rail 2. Figure 6 As shown in FIG. 1 , a schematic diagram of a circuit breaker 3 is shown, wherein a notch is provided on the housing, a bayonet 301 is provided on the upper part of the notch, and a slot 302 is provided on the lower part of the notch. Figure 7 As shown, the circuit breaker can be installed by clamping the clamping opening 301 and the clamping slot 301 on the two extended edges of the mounting rail, and can slide along the mounting rail 2.

[0028] In this embodiment, the box body 1 is connected to a cover plate 4 by screws, one side of the cover plate 4 is provided with a display window, and one side of the box body 1 is connected to a detection box 5 by screws, and the detection box 5 is electrically connected to the circuit breaker 3 through a current transformer 13 (such as Figure 8 As shown in the figure, the detection box 5 is provided with a display screen 6 for displaying the voltage and current information of the distribution box, and the display screen 6 is located in the display window. The detection box 5 is arranged on the side without reducing the original circuit breaker installation and wiring space, and no additional space is required for the installation of the detection box, thereby reducing the production cost; the detection box 5 can intuitively display the status of the distribution box through the interconnection with the circuit breaker 3, thereby reducing the trouble of removing the cover for inspection during line maintenance.

[0029] In this embodiment, a transparent plate 11 is connected to the front side of the cover plate 4, and the transparent plate 11 is aligned with the mounting rail 2. The situation inside the box can be viewed through the transparent plate 11.

[0030] In this embodiment, the top and bottom of the box body 1 are provided with lead holes 12 for accommodating the wires to pass through. The lead holes facilitate the wires to pass through and be electrically connected to external devices.

[0031] The principle of this embodiment is as follows: setting the detection box 5 on the side will not reduce the original circuit breaker installation and wiring space, and there is no need to add additional space for the installation of the detection box, which reduces the production cost; the detection box 5 can intuitively display the state of the distribution box through the interconnection with the circuit breaker 3, reducing the trouble of removing the cover for inspection during line maintenance. The mounting rail 2 is installed on the screw transmission mechanism. Through the operation of the screw transmission mechanism, the mounting rail 2 can be moved back and forth in the box body 1 to adjust the distance between the circuit breaker 3 and the rear wall of the box body 1, which is convenient for the wire to pass through and is conducive to wiring. By driving the mounting rail 2 forward through the screw transmission mechanism, the installation position of the circuit breaker can be moved toward the outside of the box body, which is convenient for the installation of the circuit breaker, and the circuit breaker 3 is clamped on the mounting rail, and does not need to be fixed by screws, which improves the convenience of installation and disassembly.

[0032] Example 2

[0033] This embodiment is different from Embodiment 1 in that, Figure 2 , Figure 4 , Figure 5As shown, the mounting rail 2 includes a first guide rail 201, connecting plates 202 fixedly connected to both ends of the first guide rail, and a second guide rail 203 slidably connected to the first guide rail. The two connecting plates 202 are respectively connected to the transmission plate 9 and the slide plate by screws. A sliding groove is provided on the side of the first guide rail 201 facing the second guide rail 203. One side of the second guide rail 203 is slidably connected to the sliding groove. Both ends of the second guide rail 203 maintain a gap with the two connecting plates 202 so that the second guide rail 203 can slide. The first guide rail 201 and the second guide rail 203 are fixed by screws.

[0034] When installing the circuit breaker, remove the screws of the first guide rail 201 and the second guide rail 203, and adjust the position of the second guide rail 203 according to the length of the notch of the circuit breaker, so as to adapt to circuit breakers of different models.

[0035] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A small distribution box with status display, characterized in that: The invention comprises a box body (1) with an opening at the front side, a screw transmission mechanism is arranged inside the box body (1), and a mounting rail (2) with a U-shaped cross section is detachably connected via the screw transmission mechanism, the two sides of the mounting rail (2) are extended outwards, the mounting rail (2) is used for clamping a circuit breaker (3), and the circuit breaker (3) can slide along the mounting rail (2); a cover plate (4) is connected to the box body (1) via screws, a display window is arranged on one side of the cover plate (4), a detection box (5) is connected to one side of the box body (1) via screws, the detection box (5) is electrically connected to the circuit breaker (3), a display screen (6) is arranged on the detection box (5), and is used for displaying voltage and current information of the distribution box, and the display screen (6) is located in the display window.

2. A small distribution box with status display according to claim 1, characterized in that: The screw transmission mechanism comprises a bearing plate (7) connected to opposite side walls of the box body (1), a screw (8) rotatably connected to one of the bearing plates and the rear wall of the box body, a guide rod connected to the other bearing plate and the rear wall of the box body, a transmission plate (9) threadedly connected to the screw rod, a slide plate slidably connected to the guide rod, and a handle (10) connected to the outer end of the screw rod, wherein the handle (10) is located on the inner side of the cover plate (4), screw holes are provided on the transmission plate (9) and the slide plate, screw holes are also provided at both ends of the mounting rail (2), and the mounting rail (2) is mounted on the transmission plate (9) and the slide plate by screws.

3. A small distribution box with status display according to claim 2, characterized in that: A transparent plate (11) is connected to the front side of the cover plate (4), and the transparent plate (11) is aligned with the mounting rail (2).

4. A small distribution box with status display according to claim 3, characterized in that: The top and bottom of the box body (1) are both provided with lead holes (12) for accommodating the passage of wires.

5. A small distribution box with status display according to any one of claims 1 to 4, characterized in that: The mounting rail (2) comprises a first guide rail (201), connecting plates (202) fixedly connected to both ends of the first guide rail, and a second guide rail (203) slidably connected to the first guide rail, the two connecting plates (202) being connected to the transmission plate (9) and the slide plate respectively by screws, a sliding groove is provided on the side of the first guide rail (201) facing the second guide rail (203), one side of the second guide rail (203) is slidably connected to the sliding groove, both ends of the second guide rail (203) maintain a gap with the two connecting plates (202) so that the second guide rail (203) can slide, and the first guide rail (201) and the second guide rail (203) are fixed by screws.

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