A portable quick grounding device

Abstract

The present invention relates to a portable quick grounding device, comprising an electric hammer, a grounding rod and a lap cap, wherein the grounding rod comprises a grounding rod body and a grounding rod head and a grounding rod handle respectively arranged at two ends of the grounding rod body, wherein the grounding rod body is provided with a spiral texture, and in the grounding and withdrawal operation state, the grounding rod handle is arranged in the hammer head mounting hole of the electric hammer, and in the grounding state, the lap cap is installed on the grounding rod handle, and the lap cap is provided with a positioning mechanism for stabilizing the grounding rod handle and an auxiliary mechanism for withdrawing the grounding rod from the ground. Compared with the prior art, the present invention has the advantages of quick grounding, reusable components, and convenient carrying.

Description

Technical Field

[0001] The invention relates to a grounding device, in particular to a portable quick grounding device. Background Art

[0002] With the progress and development of social life, emergency rescue, and military combat skills, various mobile equipment such as power supply vehicles, communication vehicles, emergency rescue mobile equipment vehicles, radar vehicles, etc. are used more and more frequently. Before these equipment start working in the field, they must first be grounded (workplace, safety ground, and lightning protection ground). In addition to requiring a small grounding resistance, they also require fast grounding and withdrawal. At present, there is no grounding tool dedicated to this scenario to achieve rapid grounding and withdrawal. The existing grounding method is basically to bury the grounding copper busbar, grounding rod, etc. after manually digging a grounding pool, or to drive the grounding rod into the ground with a sledgehammer. These grounding methods have the following disadvantages: 1. It is quite difficult to operate on hard soil, concrete, etc.; 2. The grounding operation takes a long time; 3. It is difficult and time-consuming to withdraw the grounding, or the grounding rod cannot be reused; 4. After the surface of the grounding rod is corroded, the grounding resistance is too high to meet the grounding resistance requirements. Summary of the invention

[0003] The purpose of the present invention is to provide a portable quick grounding device in order to overcome the defects of the above-mentioned prior art. The grounding device can achieve a smaller grounding resistance, not only can the grounding operation be completed safely and quickly, but also the grounding can be quickly removed to achieve the effect of reusing components such as grounding rods.

[0004] The purpose of the present invention can be achieved by the following technical solutions:

[0005] A portable quick grounding device comprises an electric hammer, a grounding rod and a lap cap, wherein the grounding rod comprises a grounding rod body and a grounding rod head and a grounding rod handle respectively arranged at two ends of the grounding rod body, the grounding rod body is provided with a spiral texture, in the grounding state, the grounding rod handle is arranged in the hammer head mounting hole of the electric hammer, in the grounding withdrawal state, the lap cap is installed on the grounding rod handle, and the lap cap is provided with a positioning mechanism for stabilizing the grounding rod handle and an auxiliary withdrawal mechanism for withdrawing the grounding rod from the ground.

[0006] Preferably, the handle of the grounding rod is provided with a handle groove and a handle pit for connecting to an electric hammer or a lap cap, and the setting position and shape of the handle groove and the handle pit match the hammer head mounting part of the electric hammer to be connected or the lap cap to be connected.

[0007] Preferably, the positioning mechanism includes a cap barrel, a fixing screw, a bald-headed positioning screw and a positioning mark, the cap barrel cover is arranged on the handle of the grounding rod, a first screw hole for installing the fixing screw is provided on one side wall of the cap barrel, and a plurality of bald-headed positioning screws are arranged on the other side wall of the cap barrel in sequence from top to bottom, the side wall is provided with a screw hole for installing the bald-headed positioning screw, and a positioning mark is provided at the bottom of the screw hole, and the position of the positioning mark on the wall of the cap barrel corresponds to the position of the handle groove.

[0008] Preferably, the auxiliary retracting mechanism comprises a circular auxiliary hole provided on the cap barrel, and the circular auxiliary hole is arranged above the fixing screw and the bald positioning screw.

[0009] Preferably, the head of the ground rod is a four-edged steel knife structure arranged in a cross.

[0010] Preferably, a chip feeding groove is provided on the outer wall of the bottom of the ground rod body connected to the ground rod head.

[0011] Preferably, the handle groove is an elongated square groove, and the handle pit is an elongated elliptical structure.

[0012] Preferably, the overlapping cap is also provided with a lifting eye screw for connecting the grounding wire and the overlapping cap in parallel, and for connecting a plurality of grounding rods in parallel.

[0013] Preferably, the number of the bald-head positioning screws is three.

[0014] Preferably, the spiral texture comprises coarse threads and fine threads which are sequentially connected to each other, and the grooves between adjacent spiral texture tracks constitute chip removal grooves.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1) The present invention adopts an electric hammer method to replace the manual knocking method. The drill bit of the electric hammer is replaced by a grounding rod. The grounding rod includes a grounding rod body, a grounding rod head and a grounding rod handle. The grounding rod body is provided with a spiral texture. Through the electric hammer rotation with the electric hammer, the difficulty of ground operations on hard soil, concrete and the like can be greatly reduced. The present invention has strong versatility, convenient operation, fast grounding and good effect, and can effectively improve the convenience of temporary grounding. It is suitable for outdoor sites where frequent replacement of power construction or mobile work is required;

[0017] 2) The present invention installs a lap cap on the ground rod, and a fixing screw, a bald positioning screw and a positioning mark are provided on the lap cap. The positioning mark corresponds to the position of the ground rod slot. The ground rod is pushed into the lap cap guided by the bald positioning screw, and the fixing screw is tightened. The lap cap can be fixed on the handle of the ground rod, and the grounding current flows to the ground rod through the screw, so that the stability and accuracy of the installation of the lap cap and the ground rod can be achieved, thereby improving the grounding effect;

[0018] 3) The present invention installs a lap cap on the ground rod, and a circular auxiliary hole is provided on the lap cap, so that when the ground rod is drilled into the soil or removed, it can be quickly unstuck or removed by passing a screwdriver or an iron rod through the circular auxiliary hole;

[0019] 4) The lap cap is provided with a lifting eye screw, which is installed on the handle of the grounding rod. The lap cap provides a connection point to realize the grounding of the equipment. The lifting eye screw can also be used to fix and tighten the terminal of the grounding wire to realize the mutual lap of multiple grounding rods, further reducing the grounding resistance and greatly improving the application range of the overall grounding device;

[0020] 5) The grounding rod of the present invention is provided with a chip feed groove and a chip discharge groove. The chip feed groove is arranged on the lower outer wall of the grounding rod body connected to the grounding rod head and is arranged at equal intervals, which can improve the soil chip feed rate when grounding. The chip discharge groove is arranged between adjacent spiral texture tracks, which can improve the soil chip discharge rate;

[0021] 6) The present invention is easy to carry, and the grounding component can be reused, so it is highly practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Schematic diagram of an electric hammer of a portable quick grounding device in an embodiment of the present invention;

[0023] Figure 2 Schematic diagram of the structure of the grounding rod of the portable quick grounding device in an embodiment of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the grounding rod head of the grounding rod of the portable quick grounding device in an embodiment of the present invention;

[0025] Figure 4 It is a schematic diagram of the vertical front view structure and the top view structure of the grounding rod handle of the grounding rod of the portable quick grounding device in an embodiment of the present invention;

[0026] Figure 5 It is a structural schematic diagram of a certain angle of a lap cap in a portable quick grounding device in an embodiment of the present invention;

[0027] Figure 6 It is a schematic structural diagram of the overlapping cap in the portable quick grounding device in the embodiment of the present invention at another angle;

[0028] Figure 7 It is a schematic diagram of the structure of the installation of the grounding rod and the overlapping cap in the portable quick grounding device in the embodiment of the present invention;

[0029] Figure 1 As shown in the bid number:

[0030] a, battery pack, b, battery release button, c, side handle, d, trigger switch, e, mode selector dial, f, mode selector release button, g, main handle, h, drill bit mounting, i, sleeve, j, work light, k, anti-rotation indicator;

[0031] Figure 2 to Figure 7 As shown in the bid number:

[0032] 1. Ground rod, 2. Overlap cap, 11. Ground rod body, 12. Ground rod head, 13. Ground rod shank, 111. Coarse thread, 112. Fine thread, 113. Chip groove, 121. Main cutting head, 122. Auxiliary cutting head, 123. Chip feed groove, 131. Shank groove, 132. Shank pit, 20. Cap barrel, 21. Eye screw, 22. Fixing screw, 23. Bald head positioning screw, 24. Positioning mark, 25. Circular auxiliary hole. DETAILED DESCRIPTION

[0033] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work should belong to the scope of protection of the present invention.

[0034] Example

[0035] The present invention relates to a portable quick grounding device, comprising an electric hammer, a grounding rod 1 and a lap cap 2. The electric hammer is not equipped with a drill bit. When the grounding rod needs to be installed underground or withdrawn, one end of the grounding rod 1 is installed in the hammer head installation hole of the electric hammer, and the lap cap is installed when the grounding lap is implemented; when the grounding rod is pulled out with the electric hammer and is stuck, the lap cap is installed, and a round rod is passed through the circular auxiliary hole 25 of the lap cap 2 and rotated several times to loosen it, and then the electric hammer or the grounding rod is pulled out directly, and the lap cap 2 is installed on one end of the grounding rod 1. Specifically:

[0036] In this embodiment, the electric hammer is an electric hammer in the prior art, which is composed of a battery pack, a side handle, a trigger switch, a main handle, a drill bit mounting part, a sleeve, a motor, etc. The electric hammer has high energy impact and rotary drilling capabilities, and has a jam protection function and a shock absorption function. Figure 1 shown.

[0037] like Figure 2 , Figure 3As shown, the grounding rod 1 includes a grounding rod body 11, a grounding rod head 12 and a grounding rod handle 13. The grounding rod body 11 is made of a special steel rod, which has the characteristics of anti-oxidation, corrosion resistance, high temperature resistance, etc. The grounding rod body 11 is provided with a protruding spiral texture, which is the optimal design after comprehensive verification of a large number of soil characteristics and chip discharge rates. The spiral texture includes a coarse thread 111 and a fine thread 112 that are connected to each other in sequence, and the grooves between adjacent spiral texture tracks constitute a chip discharge groove 113, which is used to discharge soil chips when grounding.

[0038] The grounding rod head 12 is arranged at one end of the grounding rod 1. Specifically, the grounding rod head 12 includes a main blade head 121, an auxiliary blade head 122 and a blade head base 124, and the two main blade heads 121 and the two auxiliary blade heads 122 are arranged in a cross. Two identical blade heads are arranged correspondingly. The four-edged blade head arranged in a cross can fully meet the grounding operation requirements of concrete soil with a hardness of up to 100%. As a preferred embodiment, the main blade head 121 and the auxiliary blade head 122 are steel blade heads. The grounding rod body 11 is connected to the lower outer wall of the grounding rod head 12 and is provided with a chip feed groove 123. As a preferred embodiment, a plurality of chip feed grooves 123 are arranged at equal intervals on the lower outer wall of the grounding rod body 11.

[0039] The grounding rod handle 13 is provided at the other end of the grounding rod body 11, and is used to connect with the electric hammer or install the lap cap 2. The grounding rod handle 13 is a cylindrical structure, and the outer wall of the grounding rod handle 13 is provided with an inwardly recessed handle groove 131 and a handle pit 132. In the specific use process of connecting with the electric hammer, the setting position and shape of the handle groove 131 and the handle pit 132 match the hammer head mounting hole of the electric hammer to be connected, and are used to cooperate with the electric hammer to hold the grounding rod 1. In the specific use process of connecting with the lap cap 2, the setting position and shape of the handle groove 131 and the handle pit 132 match the lap part of the lap cap 2 to be connected.

[0040] In this embodiment, as a preferred solution, two handle grooves 131 are symmetrically arranged on the corresponding surface of the handle 13 of the grounding rod, and a handle pit 132 is set between the two handle grooves 131. In this embodiment, as a preferred solution, the handle groove 131 is a long square groove, and the handle pit 132 is a long elliptical structure.

[0041] The lap cap 2 is installed on the ground rod handle 13 to remove the auxiliary ground rod 1. The lap cap 2 is used to achieve the lap connection between the ground wire and the lap cap, as well as the parallel connection between multiple ground rods 1. Figure 3 to Figure 6As shown, the lap cap 2 includes a cap barrel 20, a fixing screw 22, a bald head positioning screw 23, a positioning mark 24, and a circular auxiliary hole 25. The cap barrel 20 is used to install the ground rod handle 13 inside. A screw hole is provided on one side wall of the cap barrel 20 for installing the fixing screw 22. The fixing screw 22 passes through the cap barrel 20 through the screw hole. The main function is to fix the lap cap 2 on the ground rod handle 13 so that the grounding current flows to the ground rod 1 through the fixing screw 22. The fixing screw 22 can be tightened by hand without the need for other tools, which is convenient to operate. A plurality of bald head positioning screws 23 are arranged on the other side wall of the cap barrel 20 from top to bottom. Similarly, a screw hole for installing the bald head positioning screw 23 is provided on the side wall. In this embodiment, a total of 3 bald head positioning screws 23 are provided as force-bearing clamping points when the lap cap 2 is used to pull the ground rod 1. The positioning mark 24 mainly plays a positioning role. The positioning mark 24 is set at the bottom center position of the outer wall of the cap tube 2 corresponding to the bald positioning screw 23, and the position of the positioning mark 24 corresponds to the position of the handle groove 131. When the lap cap 2 and the grounding rod 1 are installed, the bald positioning screw 23 is guided to push the grounding rod 1 into the lap cap 2, and the fixing screw 22 is tightened. The lap cap 2 can be fixed on the grounding rod handle 13, and the grounding current flows to the grounding rod 1 through the fixing screw 22.

[0042] The lap cap 2 is also provided with a circular auxiliary hole 25. As a preferred solution, the circular auxiliary hole 25 is located above the fixing screw 22 and the bald positioning screw 23. When the grounding rod 1 is driven into the ground by an electric hammer or is pulled out and stuck, the lap cap 2 is installed on the grounding rod handle 13, and a screwdriver or iron rod that is suitable for the size of the circular auxiliary hole 25 is passed through the circular auxiliary hole 25, and then the screw handle is rotated several times in the opposite direction of the grounding spiral direction to remove the grounding rod 1 from the soil. The lap cap 2 has high hardness and toughness, and the grounding rod without texture can also be driven into the softer soil by directly hitting the lap cap with a hammer.

[0043] In this embodiment, as a preferred solution, a lifting eye screw 21 is further provided on the top of the cap barrel 20 for grounding overlap and overlap between multiple grounding rods 1. The lifting eye screw 21 can realize the mutual overlap of multiple grounding rods 1 by fixing and tightening the connection terminal of the grounding wire, thereby further reducing the grounding resistance. The lifting eye screw 21 installed on the overlap cap 2 can also be used for fixing the tether.

[0044] In actual use, the ground rod can be driven into the ground in about 3 minutes using the hammer function of the electric hammer. The blade on the head of the ground rod can penetrate hard clay, stones in clay, and even reinforced concrete ground. When the ground rod is installed on the electric hammer and driven into the ground or is pulled out and stuck, remove the electric hammer from the ground rod, install the lap cap on the handle of the ground rod, pass the round rod through the circular auxiliary hole of the lap cap, and then rotate the screw handle counterclockwise for several turns to withdraw the ground rod. In addition, the lap cap has another use, that is, when the electric hammer for driving the ground rod into the ground is not available, the ground rod can be driven into the softer soil by directly hitting the lap cap with a hammer.

[0045] The portable quick grounding device of the present invention adopts an electric hammer method to replace the manual knocking method. The drill bit of the electric hammer is replaced by a grounding rod. The grounding rod comprises a grounding rod body, a grounding rod head and a grounding rod handle. The grounding rod body is provided with a spiral texture. The difficulty of ground operations on hard soil, concrete and the like can be greatly reduced through the electric rotation action of the electric hammer. The portable quick grounding device of the present invention has strong versatility, convenient operation, fast grounding and good effect. It can effectively improve the convenience of temporary grounding and is suitable for outdoor sites where frequent replacement of power construction and mobile mobile work is required. By installing a lap cap on the grounding rod, a lap cap is provided on the lap cap. There are fixing screws, bald positioning screws and positioning marks. The positioning marks correspond to the positions of the grounding rod slots. Guided by the bald positioning screws, the grounding rod is pushed into the overlapping cap. By tightening the fixing screws, the overlapping cap can be fixed on the handle of the grounding rod. The grounding current flows to the grounding rod through the screws, which can achieve the stability and accuracy of the installation of the overlapping cap and the grounding rod, thereby improving the grounding effect. By installing the overlapping cap on the grounding rod, a circular auxiliary hole is provided on the overlapping cap, so that when the grounding rod is drilled into the soil or removed and gets stuck, a screwdriver or an iron rod can be passed through the circular auxiliary hole to quickly assist in unblocking or removing it.

[0046] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person familiar with the technical field can easily think of various equivalent modifications or substitutions within the technical scope disclosed by the present invention, and these modifications or substitutions should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A portable quick grounding device, characterized in that: The invention comprises an electric hammer, a grounding rod (1) and a lap cap (2); the grounding rod (1) comprises a grounding rod body (11) and a grounding rod head (12) and a grounding rod handle (13) respectively arranged at two ends of the grounding rod body (11); the grounding rod body (11) is provided with a spiral texture; in a grounding state, the grounding rod handle (13) is arranged in a hammer head mounting hole of the electric hammer; in a grounding withdrawal state, the lap cap (2) is installed on the grounding rod handle (13); the lap cap (2) is provided with a positioning mechanism for stabilizing the grounding rod handle (13) and an auxiliary withdrawal mechanism for withdrawing the grounding rod (1) from the ground; The ground rod handle (13) is provided with a handle groove (131) and a handle pit (132) for connecting to an electric hammer or a lap cap (2); the setting position and shape of the handle groove (131) and the handle pit (132) match the hammer head mounting portion of the electric hammer to be connected or the lap cap (2) to be connected; The positioning mechanism comprises a cap barrel (20), a fixing screw (22), a bald-headed positioning screw (23) and a positioning mark (24); the cap barrel (20) is covered on the ground rod handle (13); a first screw hole for installing the fixing screw (22) is provided on one side wall of the cap barrel (20); a plurality of bald-headed positioning screws (23) are arranged on the other side wall of the cap barrel (20) from top to bottom; the side wall is provided with a screw hole for installing the bald-headed positioning screw (23); a positioning mark (24) is provided at the bottom of the screw hole; the position of the positioning mark (24) on the wall of the cap barrel (20) corresponds to the position of the handle groove (131); The auxiliary withdrawal mechanism comprises a circular auxiliary hole (25) arranged on the cap tube (20), and the circular auxiliary hole (25) is arranged above the fixing screw (22) and the bald positioning screw (23).

2. A portable quick grounding device according to claim 1, characterized in that: The grounding rod head (12) is a four-edged steel knife structure arranged in a cross.

3. A portable quick grounding device according to claim 1, characterized in that: A chip feeding groove (123) is provided on the outer wall of the bottom of the grounding rod body (11) connected to the grounding rod head (12).

4. A portable quick grounding device according to claim 1, characterized in that: The handle groove (131) is a long square groove, and the handle pit (132) is a long elliptical structure.

5. A portable quick grounding device according to claim 1, characterized in that: The overlapping cap (2) is also provided with a lifting eye screw (21) for connecting the grounding wire and the overlapping cap (2) in parallel, and for connecting a plurality of grounding rods (1) in parallel.

6. A portable quick grounding device according to claim 1, characterized in that: The number of the bald-head positioning screws (23) is three.

7. A portable quick grounding device according to claim 1, characterized in that: The spiral texture comprises a coarse thread (111) and a fine thread (112) which are sequentially connected to each other, and the grooves between adjacent spiral texture tracks constitute a chip removal groove (113).

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