CN221227058U - Junction box - Google Patents

Abstract

The utility model discloses a junction box, which comprises a shell, wherein a circuit board is arranged in the shell, an input/output interface, a BNC interface, a dial switch and a spring binding post which are electrically connected with the circuit board are arranged on the shell, a guide rail fastening device is also arranged on the shell, the guide rail fastening device comprises a connecting plate which is arranged on the shell, two sides of the connecting plate are provided with side plates perpendicular to the connecting plate, a first fastening hook is arranged on each side plate, a supporting plate is arranged between the two side plates, a spring is connected on each supporting plate, the other end of the spring is connected with a sliding plate, a second fastening hook is arranged on each sliding plate, a fastening groove for fastening a guide rail is formed between each first fastening hook and each second fastening hook, a guide rod is arranged on the lower end face of each sliding plate, and penetrates through the supporting plate and is in sliding fit with the supporting plate. The junction box can be quickly installed on the DIN rail through the guide rail buckle device, and the guide rail buckle device is simple in structure, low in cost, easy to process and produce and convenient to install and detach between the junction box and the DIN rail.

Description

Junction box

Technical Field

The utility model relates to the technical field of junction boxes, in particular to a junction box which is convenient for connecting measuring equipment and DAQ equipment in laboratory, test and production environments.

Background

Junction boxes are used in a wide variety of locations, such as laboratories, factories, airports, infrastructure construction, and the like. Most of the existing junction boxes are connected in a wiring way through cables inside the shell, and the actual measurement of wiring work is not convenient.

The utility model patent number 202222443601.2 discloses a multifunctional integrated junction box, and the circuit connection is carried out through the mode of PCB board, has promoted holistic integrated level, has improved the flexibility of use of junction box, has satisfied more complicated wiring demand, but installs through the mounting hole when its use, is inconvenient for the installation, and installation effectiveness is low.

Disclosure of utility model

The object of the present utility model is to provide a junction box which is easy to install, in view of the above-mentioned drawbacks of the prior art.

In order to solve the problems, the utility model adopts the following technical scheme:

The utility model provides a terminal box, includes the casing, the inside circuit board that is equipped with of casing, be equipped with input/output interface, BNC interface, dial switch and the spring binding post that are connected with the circuit board electricity on the casing, still be equipped with guide rail buckle device on the casing, guide rail buckle device is including being used for installing the connecting plate on the casing, the connecting plate both sides are equipped with the curb plate of perpendicular connecting plate, be equipped with first trip on the curb plate, be equipped with the backup pad between two curb plates, be connected with the spring in the backup pad, the spring other end is connected with the sliding plate, be equipped with the second trip with first trip looks adaptation on the sliding plate, constitute the draw-in groove that is used for the joint guide rail between first trip and the second trip, the terminal surface is equipped with the guide arm under the sliding plate, the guide arm runs through the backup pad and with backup pad sliding fit.

The shell comprises an upper shell and a lower shell which are buckled with each other, the upper shell and the lower shell are enclosed to form a cavity with left and right ends open, end plates are blocked at two openings of the cavity, and end covers are arranged on the outer sides of the end plates.

The further technical scheme is that the upper end of the end cover is in threaded connection with a first screw, the first screw penetrates through the end plate to be in threaded connection with the upper shell, the lower end of the end cover is in threaded connection with a second screw, and the second screw penetrates through the end plate to be in threaded connection with the lower shell.

The further technical scheme is that the input/output interface is arranged on the end plate.

The BNC interface, the dial switch and the spring wiring terminal are arranged on the upper shell.

According to a further technical scheme, the side plates are further provided with limiting clamping plates.

According to a further technical scheme, the guide rod penetrates through the supporting plate and then is provided with a limiting circular plate.

In a further technical scheme, a plurality of springs are arranged between the supporting plate and the sliding plate.

The further technical proposal is that a plurality of guide rods are also arranged in the spring in a sleeved mode.

The beneficial effects of adopting above-mentioned technical scheme to produce lie in:

The junction box can be quickly installed on the DIN rail through the guide rail buckle device, and the guide rail buckle device is simple in structure, low in cost, easy to process and produce and convenient to install and detach between the junction box and the DIN rail. The shell comprises upper shell, inferior valve, end plate and end cover, and upper shell and inferior valve lock each other enclose into the left and right sides both ends open-ended cavity, and end plate and end cover pass through the opening part of screw fixation upper shell and inferior valve, are convenient for equipment and maintenance.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic illustration of FIG. 1 with the upper shell removed;

FIG. 3 is a schematic view of another aspect of the present utility model;

Fig. 4 is an enlarged view of a portion a in fig. 3;

Fig. 5 is an exploded view of the housing.

In the figure: 1. a circuit board; 2. an input/output interface; 3. BNC interface; 4. spring terminal; 5. a connecting plate; 6. a side plate; 7. a first hook; 8. a support plate; 9. a spring; 10. a sliding plate; 11. a second hook; 12. a guide rod; 13. a dial switch; 14. an upper case; 15. a lower case; 16. an end plate; 17. an end cap; 18. a limiting clamping plate; 19. a limit circular plate; 20. and (5) edge wrapping.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

As shown in fig. 1-5, a junction box comprises a housing, a circuit board 1 is arranged inside the housing, an input/output interface 2, a BNC interface 3, a dial switch 13 and a spring wiring terminal 4 which are electrically connected with the circuit board 1 are arranged on the housing, a guide rail fastening device is further arranged on the housing, the guide rail fastening device comprises a connecting plate 5 used for being installed on the housing, in the embodiment, four mounting holes are formed in the connecting plate 5, and the guide rail fastening device is installed on the housing through four screws penetrating through the mounting holes. The utility model discloses a sliding plate, including connecting plate 5, backup pad, guide arm 12, slide plate 8, slide plate 10, first trip 7 and second trip 11 between constitute the draw-in groove that is used for the joint guide rail, slide plate 10 lower terminal surface is equipped with backup pad 8, be connected with spring 9 on the backup pad 8, the spring 9 other end is connected with slide plate 10, be equipped with on the slide plate 10 with the second trip 11 of first trip 7 looks adaptation, constitute the draw-in groove that is used for the joint guide rail between first trip 7 and the second trip 11.

The shell comprises an upper shell 14 and a lower shell 15 which are mutually buckled, the upper shell 14 and the lower shell 15 are enclosed into a cavity with left and right ends open, end plates 16 are plugged at two openings of the cavity, and end covers 17 are arranged on the outer sides of the end plates 16.

The upper end of the end cover 17 is in threaded connection with a first screw, the first screw passes through the end plate 16 to be in threaded connection with the upper shell 14, the lower end of the end cover 17 is in threaded connection with a second screw, and the second screw passes through the end plate 16 to be in threaded connection with the lower shell 15. The cover 17 is provided with a wrapping 20, and the wrapping 20 wraps the outer sides of the upper shell 14 and the lower shell 15 for better fixing the shell.

In actual use, as long as the junction box is pushed to the direction of the extrusion spring 9, the spring 9 is further compressed, the sliding plate 10 approaches the supporting plate 8, the folded edge of the DIN rail is separated from the first clamping hook 7, and the junction box can be detached from the DIN rail. When the junction box is installed, one side of the DIN rail is folded and clamped into the second clamping hook 11, the junction box is pushed towards the direction of the extrusion spring 9, the distance between the second clamping hook 11 and the first clamping hook 7 is increased, and the junction box can be installed and fixed on the DIN rail by enabling the distance to be larger than the width of the DIN rail.

Further, the input/output interface 2 is disposed on the end plate 16. The BNC interface 3, the dial switch 13 and the spring connecting terminal 4 are arranged on the upper shell 14.

The side plate 6 is also provided with a limiting clamping plate 18, and in the sliding process of the sliding plate 10, the limiting clamping plate 18 enables the sliding plate 10 to slide within a range allowed by design at a limiting position. The guide rod 12 penetrates through the supporting plate 8 and is provided with a limiting circular plate 19 for limiting the sliding plate 10. During the sliding of the sliding plate 10, the limit clamping plate 18 and the limit circular plate 19 slide the sliding plate 10 within the range allowed by the design at the limit positions.

Preferably, a plurality of springs 9 are provided between the support plate 8 and the sliding plate 10. The guide rods 12 are also arranged in a plurality of ways and are respectively sleeved in the springs 9. The clamping force may be better provided to clamp the DIN rail.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (9)

1. The utility model provides a terminal box, includes the casing, the inside circuit board (1) that is equipped with of casing, be equipped with input/output interface (2), BNC interface (3), dial switch (13) and spring binding post (4) that are connected with circuit board (1) electricity on the casing, its characterized in that: still be equipped with guide rail buckle device on the casing, guide rail buckle device is including being used for installing connecting plate (5) on the casing, connecting plate (5) both sides are equipped with curb plate (6) of perpendicular connecting plate (5), be equipped with first trip (7) on curb plate (6), be equipped with backup pad (8) between two curb plates (6), be connected with spring (9) on backup pad (8), the spring (9) other end is connected with sliding plate (10), be equipped with on sliding plate (10) with second trip (11) of first trip (7) looks adaptation, constitute the draw-in groove that is used for the joint guide rail between first trip (7) and second trip (11), sliding plate (10) lower terminal surface is equipped with guide arm (12), guide arm (12) run through backup pad (8) and with backup pad (8) sliding fit.

2. A junction box according to claim 1, characterized in that: the shell comprises an upper shell (14) and a lower shell (15) which are buckled with each other, the upper shell (14) and the lower shell (15) are enclosed into a cavity with left and right ends open, end plates (16) are plugged at two openings of the cavity, and end covers (17) are arranged on the outer sides of the end plates (16).

3. A junction box according to claim 2, characterized in that: the upper end of the end cover (17) is in threaded connection with a first screw, the first screw penetrates through the end plate (16) to be in threaded connection with the upper shell (14), the lower end of the end cover (17) is in threaded connection with a second screw, and the second screw penetrates through the end plate (16) to be in threaded connection with the lower shell (15).

4. A junction box according to claim 2, characterized in that: the input/output interface (2) is arranged on the end plate (16).

5. A junction box according to claim 2, characterized in that: the BNC interface (3), the dial switch (13) and the spring wiring terminal (4) are arranged on the upper shell (14).

6. A junction box according to claim 1, characterized in that: and the side plate (6) is also provided with a limiting clamping plate (18).

7. A junction box according to claim 1, characterized in that: the guide rod (12) penetrates through the supporting plate (8) and is provided with a limiting circular plate (19).

8. A junction box according to claim 1, characterized in that: a plurality of springs (9) are arranged between the supporting plate (8) and the sliding plate (10).

9. A junction box according to claim 8, wherein: the guide rods (12) are also arranged in a plurality of ways and are respectively sleeved in the springs (9).