Strong-current explosion-proof junction box

Abstract

The utility model relates to the technical field of junction boxes, in particular to a strong-current explosion-proof junction box, which is characterized in that a closing device comprises a notch, the notch is arranged on the surface of a concentric-square-shaped frame, a rotating shaft is rotatably connected between the inner walls of the two sides of the notch, a rotating plate is fixedly arranged on the surface of the outer wall of the rotating shaft, a box cover is fixedly arranged on the side face of the rotating plate, and a sliding groove is arranged on the side face of the concentric-square-shaped frame. A sliding plate is slidably connected into the sliding groove, a rack is fixedly installed on the surface of the sliding plate, a gear is fixedly installed on the surface of the outer wall of the rotating shaft, a rectangular plate is fixedly installed on the surface of one side of the concentric-square-shaped frame, an electric telescopic rod is fixedly installed on the surface of the rectangular plate, and the output end of the electric telescopic rod is fixedly connected with the sliding plate. The explosion-proof junction box provided by the utility model solves the problems that the box cover of the existing explosion-proof junction box is fixedly arranged on the box body by using screws, so that when the explosion-proof junction box is installed or maintained, the explosion-proof junction box is inconvenient to disassemble and assemble, the whole process is time-consuming and labor-consuming, and the working efficiency is low.

Description

Technical Field

[0001] The utility model relates to the technical field of junction boxes, in particular to a high-voltage explosion-proof junction box. Background Art

[0002] In engineering installation, junction boxes are commonly used circuit tools. When the circuit is laid out, the wires pass through the wire tube, and at the joints of the wires (for example, when the line is long or the wire tube needs to turn a corner), junction boxes are used as transitions. The wire tube is connected to the junction box, and the wires in the wire tube are connected in the junction box, which plays a role in protecting and connecting the wires.

[0003] The existing explosion-proof junction boxes all use screws to fix the box cover of the junction box on the box body. This installation method will make it very inconvenient to disassemble and assemble during installation or maintenance. The whole process is time-consuming and labor-intensive, and the work efficiency is low. Utility Model Content

[0004] The utility model aims to solve the technical problems in the above background and proposes a high-voltage explosion-proof junction box.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a strong electric explosion-proof junction box, comprising a box body, a circular frame fixedly mounted on the top surface of the box body, a wiring hole fixedly mounted on the outer wall surface of one side of the box body, an external wire inserted in the wiring hole, a closing device provided on the surface of the circular frame, the closing device comprising a notch, the notch being provided on the surface of the circular frame, a rotating shaft rotatably connected between the inner walls on both sides of the notch, a rotating plate fixedly mounted on the outer wall surface of the rotating shaft, and a box cover fixedly mounted on the side of the rotating plate. The setting of the rotating shaft enables the rotating plate to rotate.

[0006] Preferably, a slide groove is provided on the side of the circular frame, a slide plate is slidably connected inside the slide groove, a rack is fixedly installed on the surface of the slide plate, a gear is fixedly installed on the outer wall surface of the rotating shaft, and the rack and the gear are meshed with each other. The setting of the gear has the effect of driving the rotating shaft to rotate, and the setting of the rack has the effect of driving the gear to rotate.

[0007] Preferably, a rectangular plate is fixedly mounted on one side of the circular frame, an electric telescopic rod is fixedly mounted on the surface of the rectangular plate, and an output end of the electric telescopic rod is fixedly connected to the slide plate. The setting of the electric telescopic rod plays an effect of driving the slide plate to move inside the slide slot.

[0008] Preferably, a clamping device is provided on one side surface of the box body, and the clamping device includes a U-shaped rod, the U-shaped rod is fixedly mounted on one side surface of the box body, and two clamping plates are slidably connected to the surface of the U-shaped rod. The setting of the clamping plate has the effect of clamping and limiting the external wiring.

[0009] Preferably, a U-shaped bracket is fixedly mounted on one side surface of the box body, a threaded rod is rotatably connected between the inner walls at both ends of the U-shaped bracket, a rotating wheel is fixedly mounted on the surface of the threaded rod, and the threads on the surface of the threaded rod are mutually reverse threads with the rotating wheel as the center. The setting of the rotating wheel has the effect of driving the threaded rod to rotate.

[0010] Preferably, a vertical rod is fixedly installed between the inner walls of both ends of the U-shaped bracket, and two movable plates are threadedly connected to the surface of the threaded rod, and the side surfaces of the movable plates are fixedly connected to the clamping plate. The setting of the movable plates has the effect of driving the clamping plate to move.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. In the utility model, by setting a closing device, when it is necessary to open the box cover, first start the electric telescopic rod, the electric telescopic rod starts to drive the slide plate to move inside the slide slot, the slide plate moves inside the slide slot to drive the rack to move, the rack moves and meshes with the gear, so that the gear rotates, the gear rotation drives the rotating shaft to rotate, the rotating shaft rotation drives the rotating plate to rotate, the rotating plate rotation drives the box cover to rotate, the box cover rotates to rotate itself from a horizontal state to a vertical state, when the box cover rotates to the vertical state, the box body is in an open state, and the components inside the box body can be repaired. At the same time, when the box body is opened, the electric telescopic rod can be closed, and the rotation and closing between the box cover and the box body can be achieved through the cooperation of the above structure, thereby improving the maintenance work efficiency.

[0013] 2. In the utility model, by providing a clamping device, when the staff needs to reinforce the external wiring, they rotate the rotating wheel, and the rotation of the rotating wheel drives the threaded rod to rotate. Since the threads on the surface of the threaded rod are reverse threads with the rotating wheel as the center, when the rotating wheel drives the threaded rod to rotate, the two movable plates threadedly connected on its surface will move toward each other on the surface of the vertical rod. The two movable plates move toward each other on the surface of the vertical rod, driving the two clamping plates to move toward each other on the surface of the U-shaped rod. The two clamping plates move toward each other on the surface of the U-shaped rod to clamp and limit the external wiring. Through the cooperation of the above structure, the purpose of clamping and fixing the external wiring is achieved, thereby avoiding the external wiring being easily pulled by external force and having poor contact with the wires inside the box body or even detaching, which is inconvenient for users to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1A three-dimensional structural schematic diagram of a high-voltage explosion-proof junction box is proposed for the utility model;

[0015] Figure 2 The utility model provides a right view structural schematic diagram of a strong electric explosion-proof junction box;

[0016] Figure 3 The utility model provides a left-side structural schematic diagram of a high-voltage explosion-proof junction box;

[0017] Figure 4 A high-voltage explosion-proof junction box is proposed for this utility model. Figure 1 The structural diagram at A in the middle;

[0018] Figure 5 A high-voltage explosion-proof junction box is proposed for this utility model. Figure 3 The structural diagram at B in the middle;

[0019] Legend:

[0020] 1. Box body; 2. Rectangular frame; 3. Wiring hole; 4. External wiring; 5. Closing device; 501. Notch; 502. Rotating shaft; 503. Rotating plate; 504. Box cover; 505. Slide groove; 506. Slide plate; 507. Rack; 508. Gear; 509. Rectangular plate; 510. Electric telescopic rod; 6. Clamping device; 61. U-shaped rod; 62. Clamping plate; 63. U-shaped bracket; 64. Threaded rod; 65. Rotating wheel; 66. Vertical rod; 67. Movable plate. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] See also Figure 1-5 The utility model provides a technical solution: a high-voltage explosion-proof junction box, comprising a box body 1, a circular frame 2 is fixedly installed on the top surface of the box body 1, a wiring hole 3 is fixedly installed on the outer wall surface of one side of the box body 1, and an external wire 4 is inserted into the wiring hole 3.

[0024] The specific arrangement and function of the closing device 5 and the clamping device 6 will be described in detail below.

[0025] In this embodiment: a closing device 5 is provided on the surface of the circular frame 2, and the closing device 5 includes a notch 501, and the notch 501 is opened on the surface of the circular frame 2. A rotating shaft 502 is rotatably connected between the inner walls on both sides of the notch 501, and a rotating plate 503 is fixedly installed on the outer wall surface of the rotating shaft 502, and a box cover 504 is fixedly installed on the side of the rotating plate 503.

[0026] In this embodiment, the setting of the rotating shaft 502 enables the rotating plate 503 to rotate.

[0027] Specifically, a slide groove 505 is provided on the side of the circular frame 2, and a slide plate 506 is slidably connected inside the slide groove 505. A rack 507 is fixedly installed on the surface of the slide plate 506, and a gear 508 is fixedly installed on the outer wall surface of the rotating shaft 502. The rack 507 and the gear 508 are meshed with each other.

[0028] In this embodiment, the setting of the gear 508 plays an effect of driving the rotating shaft 502 to rotate, and the setting of the rack 507 plays an effect of driving the gear 508 to rotate.

[0029] Specifically, a rectangular plate 509 is fixedly mounted on one side of the circular frame 2, and an electric telescopic rod 510 is fixedly mounted on the surface of the rectangular plate 509, and the output end of the electric telescopic rod 510 is fixedly connected to the slide plate 506. The setting of the electric telescopic rod 510 has the effect of driving the slide plate 506 to move inside the slide groove 505.

[0030] In this embodiment: a clamping device 6 is provided on one side surface of the box body 1, and the clamping device 6 includes a U-shaped rod 61, which is fixedly installed on one side surface of the box body 1, and two clamping plates 62 are slidably connected to the surface of the U-shaped rod 61. When the staff needs to reinforce the external wiring 4, they rotate the rotating wheel 65, and the rotation of the rotating wheel 65 drives the threaded rod 64 to rotate. Since the threads on the surface of the threaded rod 64 are reverse threads with the rotating wheel 65 as the center, when the rotating wheel 65 drives the threaded rod 64 to rotate, the two movable plates 67 threadedly connected on its surface will move toward each other on the surface of the vertical rod 66. The two movable plates 67 move toward each other on the surface of the vertical rod 66, driving the two clamping plates 62 to move toward each other on the surface of the U-shaped rod 61. The two clamping plates 62 move toward each other on the surface of the U-shaped rod 61 to clamp and limit the external wiring 4. Through the cooperation of the above-mentioned structure, the purpose of clamping and fixing the external wiring 4 is achieved, thereby preventing the external wiring 4 from being easily pulled by external force and having poor contact with the wires inside the box body 1 or even detaching, which is inconvenient for users to use.

[0031] Specifically, a U-shaped bracket 63 is fixedly installed on one side surface of the box body 1, and a threaded rod 64 is rotatably connected between the inner walls at both ends of the U-shaped bracket 63. A rotating wheel 65 is fixedly installed on the surface of the threaded rod 64, and the threads on the surface of the threaded rod 64 are reverse threads with the rotating wheel 65 as the center.

[0032] In this embodiment, the setting of the rotating wheel 65 plays the effect of driving the threaded rod 64 to rotate.

[0033] Specifically, a vertical rod 66 is fixedly installed between the inner walls at both ends of the U-shaped bracket 63 , and two movable plates 67 are threadedly connected to the surface of the threaded rod 64 , and the side surfaces of the movable plates 67 are fixedly connected to the clamping plate 62 .

[0034] In this embodiment, the movable plate 67 is provided to drive the clamping plate 62 to move.

[0035] Working principle: by setting the closing device 5, when it is necessary to open the box cover 504, first start the electric telescopic rod 510, the electric telescopic rod 510 starts to drive the slide plate 506 to move inside the slide groove 505, the slide plate 506 moves inside the slide groove 505 to drive the rack 507 to move, the rack 507 moves and engages with the gear 508, so that the gear 508 rotates, the gear 508 rotates to drive the rotating shaft 502 to rotate, the rotating shaft 502 rotates to drive the rotating plate 503 to rotate, the rotating plate 503 rotates to drive the box cover 504 to rotate, the box cover 504 rotates to rotate itself from a horizontal state to a vertical state, when the box cover 504 rotates to the vertical state, the box body 1 is in the open state, and the components inside the box body 1 can be repaired at this time, and when the box body 1 is opened, the electric telescopic rod 510 can be closed, and the rotation and closure between the box cover 504 and the box body 1 are realized through the cooperation of the above structure, thereby improving the maintenance work efficiency. When the staff needs to reinforce the external wiring 4, they rotate the rotating wheel 65, and the rotation of the rotating wheel 65 drives the threaded rod 64 to rotate. Since the threads on the surface of the threaded rod 64 are reverse threads with the rotating wheel 65 as the center, when the rotating wheel 65 drives the threaded rod 64 to rotate, the two movable plates 67 threadedly connected on its surface will move toward each other on the surface of the vertical rod 66. The two movable plates 67 move toward each other on the surface of the vertical rod 66, driving the two clamping plates 62 to move toward each other on the surface of the U-shaped rod 61. The two clamping plates 62 move toward each other on the surface of the U-shaped rod 61 to clamp and limit the external wiring 4. Through the cooperation of the above-mentioned structure, the purpose of clamping and fixing the external wiring 4 is achieved, thereby preventing the external wiring 4 from being easily pulled by external force and having poor contact with the wires inside the box body 1 or even detaching, which is inconvenient for users to use.

[0036] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model. In the description of the utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood by specific circumstances.

Claims

1. A high-voltage explosion-proof junction box, comprising a box body (1), a circular frame (2) fixedly mounted on the top surface of the box body (1), a wiring hole (3) fixedly mounted on the outer wall surface of one side of the box body (1), an external wire (4) inserted into the wiring hole (3), characterized in that: The surface of the circular frame (2) is provided with a closing device (5), and the closing device (5) comprises a notch (501), and the notch (501) is provided on the surface of the circular frame (2), and a rotating shaft (502) is rotatably connected between the inner walls on both sides of the notch (501), and a rotating plate (503) is fixedly mounted on the outer wall surface of the rotating shaft (502), and a box cover (504) is fixedly mounted on the side of the rotating plate (503).

2. A high-voltage explosion-proof junction box according to claim 1, characterized in that: A sliding groove (505) is provided on the side of the circular frame (2), a slide plate (506) is slidably connected inside the sliding groove (505), a rack (507) is fixedly mounted on the surface of the slide plate (506), a gear (508) is fixedly mounted on the outer wall surface of the rotating shaft (502), and the rack (507) and the gear (508) are meshed with each other.

3. A high-voltage explosion-proof junction box according to claim 1, characterized in that: A rectangular plate (509) is fixedly mounted on one side surface of the circular frame (2), an electric telescopic rod (510) is fixedly mounted on the surface of the rectangular plate (509), and an output end of the electric telescopic rod (510) is fixedly connected to the slide plate (506).

4. A high-voltage explosion-proof junction box according to claim 1, characterized in that: A clamping device (6) is provided on one side surface of the box body (1), and the clamping device (6) comprises a U-shaped rod (61). The U-shaped rod (61) is fixedly mounted on one side surface of the box body (1), and the surface of the U-shaped rod (61) is slidably connected to two clamping plates (62).

5. A high-voltage explosion-proof junction box according to claim 1, characterized in that: A U-shaped bracket (63) is fixedly mounted on one side surface of the box body (1); a threaded rod (64) is rotatably connected between the inner walls at both ends of the U-shaped bracket (63); a rotating wheel (65) is fixedly mounted on the surface of the threaded rod (64); and the threads on the surface of the threaded rod (64) are reverse threads with the rotating wheel (65) as the center.

6. A high-voltage explosion-proof junction box according to claim 5, characterized in that: A vertical rod (66) is fixedly installed between the inner walls at both ends of the U-shaped bracket (63), and two movable plates (67) are threadedly connected to the surface of the threaded rod (64), and the side surfaces of the movable plates (67) are fixedly connected to the clamping plate (62).

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