Grounding device for temporary power supply

Abstract

The utility model discloses a grounding device for temporary power supply, and relates to the technical field of temporary power supply and power connection, in particular to the grounding device for temporary power supply, which comprises a junction box, an extrusion cylinder, a grounding nail, a contact block, a connecting block, a connecting assembly, a wire clamp, a mounting groove, a power connection sleeve and a reset spring, the upper side of the exterior of the junction box is provided with a plurality of uniformly distributed mounting grooves, the interior of each mounting groove is provided with a power connection sleeve, the exterior of each power connection sleeve is provided with an extrusion cylinder, the interior of each extrusion cylinder is provided with a reset spring, the interior of each power connection sleeve is provided with a contact block, and the upper side of each contact block is provided with a connecting block. A connecting assembly is arranged between the connecting block and the power connection sleeve. A wire clamp and a grounding nail are arranged on the upper portion and the lower portion of the outer portion of the junction box respectively. Compared with the prior art, the wire clamp has the advantage that the wire clamp can be conveniently and quickly disassembled and assembled.

Description

Technical Field

[0001] The utility model relates to the technical field of temporary power supply connection, in particular to a grounding device for temporary power supply. Background Art

[0002] With the rapid development of social economy, the demand for various types of temporary electricity is increasing, such as construction sites, temporary activity venues, field operations, etc. In order to ensure the safe and stable operation of the temporary power supply system and reduce the occurrence of electric shock accidents, the temporary power supply system needs to be grounded. The existing grounding devices have problems such as complex installation, poor grounding effect, and weak anti-interference ability, which cannot meet the growing demand for temporary electricity.

[0003] Although the grounding device provided by the prior art solves certain problems, it still has the following disadvantages:

[0004] (1) When connecting the terminal clamp and the grounding nail, it is troublesome to connect because there are many lines, and it is easy to damage the lines if they are disconnected after connection.

[0005] (2) When performing grounding operations, since many lines are needed for temporary power supply, multiple wiring clamps are generally used to connect one grounding nail, and there are great safety hazards at the connection points of the lines. Utility Model Content

[0006] The utility model aims to provide a grounding device for temporary power supply.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A grounding device for temporary power supply, comprising:

[0009] A junction box, wherein a plurality of evenly distributed installation grooves are provided on the upper side of the junction box, a power connection sleeve is provided inside the installation grooves, a metal spring ring is fixedly connected to the bottom end of the power connection sleeve, and a retaining ring is provided on the lower side of the outside of the power connection sleeve;

[0010] An extrusion cylinder, the extrusion cylinder is sleeved on the outside of the power connection sleeve, and the inside of the extrusion cylinder is provided with snap rings for use with the retaining rings at the top and bottom, and a return spring is provided between the snap rings. The return spring is located on the upper side of the retaining ring, and the return spring is sleeved on the outside of the power connection sleeve;

[0011] A grounding nail, which is arranged below the junction box and is connected to the junction box via a main connecting wire;

[0012] A contact block, the contact block is inserted into the metal spring ring, and a connecting block is fixedly connected to the upper side of the contact block;

[0013] A connecting assembly, the connecting assembly being arranged between the connecting block and the power connection sleeve;

[0014] A wire clamp is arranged above the junction box, and the wire clamp is connected to the connection block by an auxiliary connecting wire.

[0015] Furthermore, the connection assembly includes an annular clamping groove opened outside the connection block, and a plurality of evenly distributed mounting holes are opened on the upper side of the outer wall of the power connection sleeve. The mounting holes are provided with clamping balls used in conjunction with the annular clamping groove.

[0016] Furthermore, the inner diameter of the mounting hole gradually increases in the direction approaching the extrusion cylinder, and an extrusion ring block for cooperating with the clamping ball is provided on the upper side of the outer side of the upper clamping ring, and the extrusion ring block is sleeved on the outside of the power connection sleeve.

[0017] Furthermore, one end of the main connecting wire is fixedly connected to the lower side of the junction box, and the other end of the main connecting wire is fixedly connected to the upper end of the grounding nail.

[0018] Furthermore, one end of the auxiliary connecting wire is fixedly connected to the lower end of the wire clamp, and the other end of the auxiliary connecting wire is fixedly connected to the upper side of the connecting block.

[0019] The utility model provides a grounding device for temporary power supply, which has the following beneficial effects:

[0020] (1) Through the several mounting holes opened on the power connection sleeve, the annular groove on the connection block is clamped by a clamping ball, and the movement of the clamping ball is restricted by the up and down movement of the extrusion cylinder, so that the quick disassembly and quick installation function between the wire clamp and the grounding nail can be realized, which is faster and more convenient to use.

[0021] (2) The junction box is used as the connection point of the line, which is protected by the casing, and the disassembly and assembly of the line will not cause damage to the line, which is safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0023] Figure 1 The utility model is a three-dimensional diagram of a grounding device for temporary power supply.

[0024] Figure 2 It is a three-dimensional magnification of the structure of a temporary power supply grounding device of the utility model. Figure 1 .

[0025] Figure 3 It is an enlarged structural cross-section diagram of a grounding device for temporary power supply of the utility model.

[0026] Figure 4 It is a three-dimensional magnification of the structure of a temporary power supply grounding device of the utility model. Figure 2 .

[0027] Figure 5 It is an enlarged view of A of a grounding device for temporary power supply of the utility model.

[0028] Figure 6 It is an exploded and enlarged view of the structure of a grounding device for temporary power supply of the utility model.

[0029] Indications in the figure: 1. Junction box; 2. Extrusion cylinder; 3. Grounding pin; 4. Contact block; 5. Connection assembly; 501. Annular snap-in groove; 502. Mounting hole; 503. Snap-in ball; 6. Wire clamp; 7. Mounting groove; 8. Power connection sleeve; 9. Metal spring ring; 10. Retaining ring; 11. Snap ring; 12. Reset spring; 13. Main connecting wire; 14. Connection block; 15. Auxiliary connecting wire; 16. Extrusion ring block. DETAILED DESCRIPTION

[0030] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0031] 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. 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.

[0032] Embodiment 1:

[0033] like Figures 1 to 6 As shown, this embodiment provides a grounding device for temporary power supply, including a junction box 1, an extrusion cylinder 2, a grounding nail 3, a contact block 4, a connecting component 5 and a wire clamp 6 arranged above the junction box 1.

[0034] Among them, as a connecting line, a junction box 1 for power supply between lines is provided with multiple installation grooves 7 on its upper side, and each installation groove 7 is connected to a power connection sleeve 8, and a retaining ring 10 is arranged at the lower side of the outside of the power connection sleeve 8, and a return spring 12 is arranged on the upper side of the retaining ring 10 and is sleeved on the outside of the power connection sleeve 8, and an extrusion cylinder 2 is sleeved on the outside of the power connection sleeve 8, and a retaining ring 11 is arranged on the upper and lower parts of the extrusion cylinder 2, and a retaining ring 11 on the upper side squeezes the return spring 12 on the upper side of the retaining ring 10, when the extrusion cylinder 2 moves downward, the return spring 12 will be compressed by the retaining ring 11 and the retaining ring 10 on the upper side, and after the external force on the extrusion cylinder 2 is removed, the extrusion cylinder 2 will be rebounded by the return spring 12.

[0035] The lower end of the outside of the junction box 1 is connected to a main connecting wire 13, and the other end of the main connecting wire 13 is connected to a grounding nail 3 used to be nailed into the ground. A connecting block 14 is arranged inside the power connection sleeve 8, and an annular clamping groove 501 is arranged outside the connecting block 14. A plurality of mounting holes 502 with variable diameters are arranged around the outer wall of the power connection sleeve 8. The mounting holes 502 have larger diameters as they extend outward, and the diameters change linearly. In addition, a clamping ball 503 is arranged inside each mounting hole 502, and the clamping ball 503 is used to clamp the mounting holes 502. The part of 503 that passes through the mounting hole 502 is clamped into the inside of the annular clamping groove 501 to clamp the connecting block 14. An extrusion ring block 16 is installed on the upper side of a clamping ring 11 on the upper side of the extrusion cylinder 2. When the extrusion cylinder 2 is pushed up by the reset spring 12, the upper side of the lower clamping ring 11 and the lower side of the retaining ring 10 are in contact with each other. At this time, the extrusion ring block 16 squeezes the clamping ball 503 inward, and the part of the clamping ball 503 that extends into the inside of the power connection sleeve 8 is clamped in the inside of the annular clamping groove 501.

[0036] When the extrusion cylinder 2 is pressed downward, the extrusion ring block 16 moves downward together with the extrusion cylinder 2, and the clamping ball 503 loses the obstruction of the extrusion ring block 16 and can move outward, but it will still be blocked by the inner wall of the extrusion cylinder 2. The clamping ball 503 can move outward a certain distance, so that the annular clamping groove 501 on the connecting block 14 loses the clamping of the clamping ball 503, but the clamping ball 503 will not fall out from the inside of the mounting hole 502, forming a connecting assembly 5 between the connecting block 14 and the power connection sleeve 8, realizing the quick release and quick installation function between the connecting block 14 and the power connection sleeve 8.

[0037] A contact block 4 is installed at the lower end of the connecting block 14, and a metal spring ring 9 is installed at the bottom end of the power connection sleeve 8. There is a spring in the middle of the metal spring ring 9 that is always pressed inward, and can contact with the contact block 4 to energize. An auxiliary connecting wire 15 is installed on the upper side of the connecting block 14, and the upper end of the auxiliary connecting wire 15 is connected to a wire clamp 6. The upper end of the wire clamp 6 adopts a V-shaped opening, and a spring clip is provided at the opening to facilitate the connection of the line that needs to be powered.

[0038] The electrical components appearing in this article are all connected to an external main controller and 220V AC power, and the main controller can be a conventional known device that controls a computer, etc. The specific implementation method of the present disclosure omits the detailed description of known functions and known components. To ensure the compatibility of the equipment, the operating methods used are consistent with the parameters of marketed equipment.

[0039] 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 grounding device for temporary power supply, characterized in that: include: A junction box (1), wherein a plurality of evenly distributed installation grooves (7) are provided on the upper side of the junction box (1), a power connection sleeve (8) is provided inside each of the installation grooves (7), a metal spring ring (9) is fixedly connected to the bottom end of each of the power connection sleeves (8), and a retaining ring (10) is provided on the lower side of the outside of the power connection sleeve (8); An extrusion cylinder (2), the extrusion cylinder (2) being sleeved on the outside of the power connection sleeve (8), the interior of the extrusion cylinder (2) being provided with snap rings (11) for use with the retaining ring (10) at the top and bottom, a return spring (12) being provided between the snap rings (11), the return spring (12) being located on the upper side of the retaining ring (10), and the return spring (12) being sleeved on the outside of the power connection sleeve (8); A grounding nail (3), the grounding nail (3) being arranged below the junction box (1), the grounding nail (3) being connected to the junction box (1) by means of a main connecting wire (13); A contact block (4), the contact block (4) being inserted into the metal spring ring (9), and a connecting block (14) being fixedly connected to the upper side of the contact block (4); A connecting assembly (5), wherein the connecting assembly (5) is arranged between the connecting block (14) and the power connection sleeve (8); A wire clamp (6), wherein the wire clamp (6) is arranged above the junction box (1), and the wire clamp (6) is connected to the connection block (14) by means of an auxiliary connection wire (15).

2. A grounding device for temporary power supply according to claim 1, characterized in that: The connection assembly (5) comprises an annular clamping groove (501) formed on the outside of the connection block (14); a plurality of evenly distributed mounting holes (502) are formed on the upper side of the outer wall of the power connection sleeve (8); and small clamping balls (503) for use with the annular clamping groove (501) are provided inside the mounting holes (502).

3. A grounding device for temporary power supply according to claim 2, characterized in that: The internal diameter of the mounting hole (502) gradually increases in the direction approaching the extrusion cylinder (2), and an extrusion ring block (16) for cooperating with the clamping ball (503) is provided on the upper side of the outer side of the upper clamping ring (11), and the extrusion ring block (16) is sleeved on the outside of the power connection sleeve (8).

4. A grounding device for temporary power supply according to claim 1, characterized in that: One end of the main connection wire (13) is fixedly connected to the lower side of the junction box (1), and the other end of the main connection wire (13) is fixedly connected to the upper end of the grounding nail (3).

5. A grounding device for temporary power supply according to claim 1, characterized in that: One end of the auxiliary connecting wire (15) is fixedly connected to the lower end of the wire clamp (6), and the other end of the auxiliary connecting wire (15) is fixedly connected to the upper side of the connecting block (14).

Images