Power supply junction box

Abstract

The utility model belongs to the technical field of power supply equipment, and discloses a power supply junction box, which comprises a box body, wiring rings are symmetrically clamped and mounted at the bottom end of the box body, a heat dissipation hole is formed in the top of one end of the box body, and anti-drop structures are symmetrically mounted at the bottom end of the inner wall of the box body at the edge positions of the top ends of the wiring rings; and the anti-falling structure comprises positioning plates welded in the box body, rotating columns are rotationally connected into the positioning plates, rotating strips are welded to the positions, located between the two positioning plates, of the outer surfaces of the rotating columns, one ends of the rotating strips are movably connected with inserting plates, and fixing structures are fixedly installed on one sides of the bottom ends of the positioning plates. The beneficial effects of the utility model are that the wire can only move upwards along the interior of the wiring ring and cannot move downwards, so that the problem that the wire is separated from an electronic component due to the fact that the wire is dragged by a worker, and the worker needs to carry out secondary connection between the wire and the electronic component is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of power supply equipment, and particularly relates to a power supply junction box. Background Art

[0002] During construction work on a construction site, a junction box for temporary use is a common electrical device used to provide temporary power supply and safe electrical wiring. The junction box is usually used to connect the power source to various devices and tools on the construction site to meet the power requirements of the construction site.

[0003] Since the wire needs to be connected to the inside of the junction box, at this time, the wire and the junction box cannot be fixed. Due to the dragging of the wire, it is easy to cause the wire to fall off from the electronic components inside the junction box, resulting in the situation where the staff needs to perform secondary wiring. Summary of the Utility Model

[0004] Aiming at the problem in the prior art that since the wire needs to be connected to the inside of the junction box, at this time, the wire and the junction box cannot be fixed, and due to the dragging of the wire, it is easy to cause the wire to fall off from the electronic components inside the junction box, resulting in the situation where the staff needs to perform secondary wiring, the utility model proposes the following technical solutions:

[0005] A power supply junction box, comprising: a box body, wherein wiring rings are symmetrically clamped and installed at the bottom end of the box body, a heat dissipation hole is opened at the top of one end of the box body, and anti-detachment structures are symmetrically installed at the bottom end of the inner wall of the box body at the edge position above the wiring rings.

[0006] The anti-detachment structure includes a positioning plate welded inside the box body, a rotating column is rotatably connected inside the positioning plate, a rotating bar is welded on the outer surface of the rotating column between two positioning plates, one end of the rotating bar is movably connected with an inserting plate, and a fixing structure is fixedly installed on one side at the bottom end of the positioning plate.

[0007] Preferably, a rectangular rod is integrally formed at one end of the inserting plate, and the rectangular rod is slidably connected inside the rotating bar. A lead screw is threadedly connected inside the rectangular rod, and the lead screw is rotatably connected to one end of the rotating bar.

[0008] Preferably, a circular ring is welded on the outer surface of the lead screw corresponding to one end of the rotating bar, and a rectangular groove corresponding to one end of the rectangular rod is opened inside the rotating bar.

[0009] Preferably, a torsion spring is fixedly installed between the opposite surfaces of the two positioning plates opposite to the inner wall of the rotating column. Cylinders are welded on the opposite surfaces of the rotating column, a round rod is welded on one end face of the positioning plate, and both ends of the torsion spring are located outside the cylinder and the round rod respectively.

[0010] Preferably, the shape of the rotating column is concave, and a notch is provided at the bottom of the outer surface of the rotating column. The fixing structure includes a support plate welded to one side of the bottom end of the positioning plate. A manual telescopic rod is clamped and installed in the middle of the inner wall of the support plate. A rectangular block is sleeved on the top end of the manual telescopic rod, and L-shaped strips are integrally formed on both end faces of the rectangular block.

[0011] Preferably, the outer surface of the rectangular block fits with the inner wall of the notch, and arc-shaped corners are provided at the edges of the inner wall of the L-shaped strip.

[0012] The beneficial effects of the present utility model are as follows:

[0013] (1) It can prevent the wire from moving downward along the inside of the wiring ring, thus preventing the wire from being dragged by personnel and causing separation between the wire and the electronic component, and avoiding the problem that the wire and the electronic component need to be reconnected by personnel.

[0014] (2) It can clamp and fix wires with different diameters, improving the flexibility and applicability of the device.

[0015] (3) It is convenient to separate the wire from the anti-disconnection structure, changing the difficulty of separating the wire from the anti-disconnection structure, so as to disassemble the wire and change the difficulty of disassembling the wire and the box body after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The figure shows a schematic structural diagram of a power supply wiring box;

[0017] Figure 2 The figure shows a schematic assembly structure diagram of the anti-disconnection structure and the fixing structure;

[0018] Figure 3 The figure shows a schematic structural diagram of the anti-disconnection structure;

[0019] Figure 4 The figure shows a schematic structural diagram of the fixing structure in the middle.

[0020] In the figure: 1, box body; 2, heat dissipation holes; 3, wiring ring;

[0021] 4, anti-disconnection structure; 41, positioning plate; 42, rotating column; 43, rotating strip; 44, lead screw; 45, rectangular rod; 46, insertion plate; 47, torsion spring; 48, notch;

[0022] 5, fixing structure; 51, support plate; 52, manual telescopic rod; 53, rectangular block; 54, L-shaped strip. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below in conjunction with the embodiments.

[0024] Embodiment 1

[0025] The present utility model provides a power supply junction box, as Figures 1-4 shown, comprising: a box body 1, wiring rings 3 are symmetrically snap-fitted and installed at the bottom end of the box body 1, a heat dissipation hole 2 is opened at the top of one end of the box body 1, and anti-disengagement structures 4 are symmetrically installed at the bottom end of the inner wall of the box body 1 at the edge position above the top end of the wiring ring 3;

[0026] The anti-disengagement structure 4 includes a positioning plate 41 welded inside the box body 1, a rotating column 42 is rotatably connected inside the positioning plate 41, a rotating bar 43 is welded on the outer surface of the rotating column 42 between the two positioning plates 41, one end of the rotating bar 43 is movably connected with a plug board 46, and a fixing structure 5 is fixedly installed on one side of the bottom end of the positioning plate 41.

[0027] As Figure 2 and Figure 3 shown, a rectangular rod 45 is integrally formed at one end of the plug board 46 and the rectangular rod 45 is slidably connected inside the rotating bar 43. The rectangular rod 45 is used for positioning the plug board 46, changing the positioning difficulty of the plug board 46, so that the plug board 46 can only perform horizontal displacement. A lead screw 44 is threadedly connected inside the rectangular rod 45 and the lead screw 44 is rotatably connected to one end of the rotating bar 43. The lead screw 44 is used to drive the rectangular rod 45 to move and can adjust the spacing of the movement of the rectangular rod 45. A ring is welded on the outer surface of the lead screw 44 corresponding to one end of the rotating bar 43. The ring facilitates the rotation of the lead screw 44, changing the rotation difficulty of the lead screw 44. A rectangular groove corresponding to one end of the rectangular rod 45 is opened inside the rotating bar 43. The rectangular groove is used for positioning the rectangular rod 45. A torsion spring 47 is fixedly installed between the opposite surfaces of the two positioning plates 41 opposite to the inner wall of the rotating column 42. The torsion spring 47 is used for the reset of the rotating bar 43, changing the reset difficulty of the rotating bar 43. Cylinders are welded on the opposite surfaces of the rotating column 42, and a round rod is welded on one end face of the positioning plate 41. The two ends of the torsion spring 47 are respectively located outside the cylinder and the round rod. The round rod and the cylinder are used for the installation and fixation of the torsion spring 47, changing the installation and fixation difficulty of the torsion spring 47, so that the torsion spring 47 can operate normally.

[0028] As Figure 3 and Figure 4As shown in the figure, the rotating column 42 is concave in shape. A notch 48 is provided at the bottom of the outer surface of the rotating column 42. The notch 48 is used for connecting other objects. The fixing structure 5 includes a support plate 51 welded to one side of the bottom end of the positioning plate 41. The support plate 51 has a connecting function and is used to support other objects. A manual telescopic rod 52 is snap-fitted and installed in the middle of the inner wall of the support plate 51. The manual telescopic rod 52 is used to drive the lifting of the rectangular block 53, changing the difficulty of lifting the rectangular block 53. The top end of the manual telescopic rod 52 is sleeved with a rectangular block 53. L-shaped strips 54 are integrally formed on both end faces of the rectangular block 53. The outer surface of the rectangular block 53 and the inner wall of the notch 48 are in mutual contact. The cooperation between the rectangular block 53 and the notch 48 is used to fix the rotating column 42, changing the difficulty of fixing the rotating column 42. An arc-shaped corner is provided at the edge of the inner wall of the L-shaped strip 54, facilitating the fitting between the human finger and the L-shaped strip 54 and increasing the comfort when the human finger is connected to the L-shaped strip 54.

[0029] Working principle: During the actual use of this power supply connection box, electronic components are installed inside the box body 1. Then, the user inserts the wire along the wiring ring 3 into the box body 1. At this time, when the wire enters the box body 1 along the wiring ring 3, the plug board 46 moves. When the plug board 46 moves, it drives the rotation of the rotating column 42 through the cooperation of the rectangular rod 45, the rotating bar 43, and the lead screw 44. When the rotating column 42 rotates, the plug board 46 flips around the center line of the rotating column 42. When the rotating column 42 rotates, the torsion spring 47 is compressed. Under the reaction force of the torsion spring 47, the plug board 46 squeezes the wire and causes the protective layer of the wire to bend. And because the total length between the rotating bar 43, the lead screw 44, the rectangular rod 45, and the plug board 46 does not change, when the wire moves downward, at this time, the wire drives the rotating bar 43, the lead screw 44, the rectangular rod 45, and the plug board 46 on both sides of the wire to move inward. Since the distance between the rotating bar 43, the lead screw 44, the rectangular rod 45, and the plug board 46 and the center line of the wire becomes smaller when they move inward, at this time, due to the fixed diameter of the wire, the greater the squeezing force of the rotating bar 43, the lead screw 44, the rectangular rod 45, and the plug board 46 on the wire when the wire moves downward, so that the wire can only move upward along the inside of the wiring ring 3 and cannot move downward, thus preventing the user from dragging the wire and causing the separation between the wire and the electronic components, and thus avoiding the problem that the user needs to perform secondary connection between the wire and the electronic components.

[0030] And because the diameters of the wire points are different, at this time, the user rotates the lead screw 44 by driving the ring. When the lead screw 44 rotates, it drives the rectangular rod 45 to move along the rectangular groove inside the rotating bar 43. Since the movement of the rectangular rod 45 drives the movement of the plug board 46, the relative distance between the two plug boards 46 is changed, so that wires with different diameters can be clamped and fixed, improving the flexibility and applicability of the device.

[0031] When it is necessary to disassemble the wire, the operator rotates the plug board 46. When the plug board 46 rotates, it drives the rotating bar 43, the lead screw 44, the rectangular rod 45 and the rotating column 42 to rotate synchronously, and separates the plug board 46 from the wire. Then, the operator drives the rectangular block 53 to move upward through the L-shaped bar 54. When the rectangular block 53 moves, it drives the manual telescopic rod 52 to stretch. When the rectangular block 53 enters the notch 48, it fixes the rotating column 42, so that the plug board 46 is fixed, which is convenient for separating the wire from the anti-disconnection structure 4, changes the separation difficulty between the wire and the anti-disconnection structure 4, and thus disassembles the wire, changing the disassembly difficulty between the wire and the box body 1 after installation.

[0032] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it.

Claims

1. A power supply connection box, characterized in that: include: A box body (1), a wiring ring (3) is symmetrically mounted on the bottom of the box body (1), a heat dissipation hole (2) is provided on the top of one end of the box body (1), and an anti-slip structure (4) is symmetrically mounted on the bottom of the inner wall of the box body (1) at the top edge of the wiring ring (3); The anti-slip structure (4) comprises a positioning plate (41) welded to the inside of the box body (1), a rotating column (42) is rotatably connected to the inside of the positioning plate (41), a rotating bar (43) is welded to the outer surface of the rotating column (42) between the two positioning plates (41), one end of the rotating bar (43) is movably connected to a plug plate (46), and a fixing structure (5) is fixedly installed on one side of the bottom end of the positioning plate (41).

2. A power supply connection box according to claim 1, characterized in that: A rectangular rod (45) is integrally formed at one end of the plug plate (46), and the rectangular rod (45) is slidably connected to the inside of the rotating bar (43); a screw rod (44) is threadedly connected to the inside of the rectangular rod (45), and the screw rod (44) is rotatably connected to one end of the rotating bar (43).

3. A power supply connection box according to claim 2, characterized in that: A circular ring is welded on the outer surface of the screw rod (44) at a position corresponding to one end of the rotating bar (43), and a rectangular groove corresponding to one end of the rectangular rod (45) is opened inside the rotating bar (43).

4. A power supply connection box according to claim 1, characterized in that: A torsion spring (47) is fixedly installed between the opposite surfaces of the two positioning plates (41) opposite to the inner wall of the rotating column (42), the opposite surfaces of the rotating column (42) are welded with a cylinder, one end surface of the positioning plate (41) is welded with a round rod, and the two ends of the torsion spring (47) are respectively located outside the cylinder and the round rod.

5. The power supply connection box according to claim 1, characterized in that: The shape of the rotating column (42) is concave, and a notch (48) is provided at the bottom of the outer surface of the rotating column (42). The fixing structure (5) comprises a support plate (51) welded to one side of the bottom end of the positioning plate (41), a manual telescopic rod (52) is clamped and installed in the middle of the inner wall of the support plate (51), a rectangular block (53) is sleeved and installed at the top end of the manual telescopic rod (52), and L-shaped strips (54) are integrally formed on both end surfaces of the rectangular block (53).

6. A power supply connection box according to claim 5, characterized in that: The outer surface of the rectangular block (53) and the inner wall of the notch (48) fit each other, and the inner wall edge of the L-shaped strip (54) is provided with an arc corner.

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