TWI398056B - A grounding shaft of a casing pipe - Google Patents

Description

Casing structure of ground rod

The present invention relates to a bushing construction of a ground rod, and more particularly to a bushing for a ground rod capable of firmly bonding a grounding conductor to a grounding rod.

In known buildings, grounding conductors are usually embedded as grounding for lightning rods or wire circuits to avoid the danger of lightning strikes or leakage of electrical circuits. The conventional grounding conductor is buried, and the grounding conductor is buried below the ground surface together with a grounding rod. The connection between the conventional grounding wire and the grounding rod is carried out by a sleeve for the grounding wire, and the casing is screwed to the grounding rod. The connection between the conventional grounding conductor and the grounding rod, since the grounding conductor is fastened to the grounding rod only by screws, when the grounding rod and the grounding conductor are buried in the ground by tapping, the grounding The wire is easily detached from the ground bar, resulting in poor contact of the ground wire.

The Republic of China Announcement No. 423744 "Corrosion of Conductive Structures for Grounding Rods" patent case is to improve the shortcomings of the above-mentioned grounding conductors and grounding rods, which are mainly provided with fine mesh embossing on the surface near the top end of the grounding rod, and the casing One side protrudes to form a large one-and-small two-section ferrule, and the conductive wire is combined with the ground rod by a sleeve, so that the exposed metal portion of the conductive wire is placed in the smaller sleeve portion, and the insulated package is The covering part is placed in a larger fitting part, and is pressed by a hydraulic machine with a special module, so that the small sleeve part of the sleeve tightly urges the metal part of the conductive line to the ground rod, and the large part part will be The insulating covering portion is tightly coupled to the ground rod. In this way, although the sleeve can be firmly connected to the ground rod via a stamping method, the grounding conductor becomes weak after being punched, and the grounding conductor is still buried when the grounding rod and the grounding conductor are buried in the ground. The grounding rod may fall off or form a breakage, so that the grounding conductor cannot be grounded below the surface, and the grounding conductor cannot reach the grounding effect. Moreover, the kind of the connecting method is connected to the grounding rod by stamping. It is only suitable for conductors with smaller diameters. For conductors with larger diameters, because the sleeve is of a given size, the conductor cannot be inserted into the sleeve and is stamped and bonded, resulting in the conventional stamping method not being applicable. A wire with a larger diameter.

It is an object of the present invention to improve the above disadvantages to provide a bushing construction of a grounding rod that secures the grounding conductor to the casing.

A second object of the present invention is to provide a casing structure for a ground rod that can be applied to a variety of different diameter grounding conductors.

It is still another object of the present invention to provide a bushing construction of a grounding bar that can be securely coupled to the grounding rod and buried below the ground surface.

The casing of the ground rod of the present invention is made of a conductive material, and the sleeve itself is provided with a through hole penetrating through the top and a crack, and the crack communicates with the through hole, so that the sleeve is divided into a first block and a a second block; the first block and the second block are provided with a bit hole for the positioning component to be pierced, so that the crack spacing between the first block and the second block can be changed.

The above and other objects, features and advantages of the present invention will become more <RTIgt;

1 is a first preferred embodiment of the present invention, which is mainly composed of a grounding rod 1, a sleeve 2 and a grounding wire 3. The grounding conductor 3 can be firmly connected thereto. The sleeve 2, the connected grounding wire 3 and the sleeve 2 can be firmly fixed to the ground rod 1.

The grounding rod 1 can be made of various conductive materials, and the first end 11 of the grounding rod 1 can be formed into a tapered shape, so that the grounding rod 1 can be accommodated deep below the surface when being struck, the grounding rod 1 There is a second end 12 that can be secured to the sleeve 2.

The sleeve 2 can be made of various conductive materials. The sleeve 2 itself is provided with a through hole 21 and a slit 22 which communicate with the through hole 21 to make the sleeve 2 have a center. Line X is divided into a first block 23 and a second block 24. The through hole 21 can correspond to the rough surface of the grounding bar 1. The crack 22 is used to insert the grounding wire 3. The first block 23 and the second block 24 can be provided with corresponding positioning holes 27, which can be provided. The locating holes 27 can be routed through the positioning member 28 such that the spacing of the slits 22 of the first block 23 from the second block 24 can be varied. In this embodiment, the positioning member 28 can be a bolt and screwed to a nut 281. If necessary, the bolt can be sleeved 282. Thus, by the screwing of the positioning member 28, the positioning member 28 is formed. The first block 23 is spaced apart from the slit 22 of the second block 24. Further, in order to facilitate the rotation of the bolt and the nut 281 forming the positioning member 28, the first block 23 and the second block 24 are An outer surface may be provided with a counterbore or a sinking groove 29. In the embodiment, a sinking groove 29 is formed on the surface of the first block 23 so that the bolt cap of the positioning member 28 can be embedded in the counterbore, or One of the pair of bolt heads can be just stuck in the sinking groove 29, so that the nut 281 can be rotated.

Furthermore, in order to prevent the grounding wire 3 from being detached from the crack 22, at least one of the first block 23 or the second block 24 may form a stop portion 233, 243, the stop portion 233, 243 Positioned at the edge of the first block 23 or/and the second block 24 forming the open end of the horizontal slit 22 and protruding toward the other block, such that the distance between the portions of the stop portions 233, 243 is smaller than the formation of the crack 22 The distance between the first block 23 and the second block 24 is.

In addition, in order to enable the grounding wire 3 to be securely sandwiched between the first block 23 and the second block 24, the opposite surfaces of the first block 23 and the second block 24 may be separately provided. There are a plurality of grooves 231, 232 and grooves 241, 242, wherein the first block 23 and the grooves 231, 241 of the second block 24 constitute a first slot 25, the first block 23 and the first block The grooves 232, 242 of the second block 24 correspond to the second slot 26, so that the sleeve 2 has at least two slots 25, 26, .... The cross section of the plurality of first slots 25 and the second slots 26 may be formed into various shapes, and the cross-sectional shape is preferably a rectangle, a trapezoid, a polygon, a circle, etc., and the first slot 25 and the second slot The slot 26 can be routed through the metal wire 31 of the ground wire 3. Further, the center of the first slot 25 and the second slot 26 is formed, and it is preferably not located on the center line X, that is, the center of the first slot 25 is formed on one side of the center line X, forming The center of the second slot 26 is located on the other side of the center line X such that the center of the first slot 25 and the center of the second slot 26 are on the two sides of the center line X, respectively, in this embodiment. The center of the first slot 25 is biased toward the second block 24, and the center of the second slot 26 is biased toward the first block 23. Therefore, when the first block 23 and the second block are made by the positioning component 28 When the spacing of the slits 22 of the block 24 is changed, the metal wires 31 located at the first slot 25 and the second slot 26 may be offset from each other so that the metal wires 31 can be fixed more firmly.

The grounding wire 3 may be a conventional electric wire, and the grounding wire 3 is covered with an insulating layer, the metal wire 31 is stranded by a plurality of strands, and the grounding wire 3 is connected at one end to a building or an electrical appliance. The other end of the grounding wire 3 is coupled to the sleeve 2.

Referring to FIGS. 2 and 3, which is a first preferred use example of the present invention, the grounding rod 1 is passed through the through hole 21 of the sleeve 2. When the grounding wire 3 has a small diameter, the The metal wire 31 of the grounding wire 3 is penetrated by the slit 22 on the side of the positioning member 28, and is passed around the positioning member 28 and folded back to the other side of the positioning member 28. Furthermore, the grounding wire 3 is passed through the first slot 25 by the metal wire 31, and then the bottom of the sleeve 2 is folded back into the second slot 26 and fastened by the positioning component 28. Thus, the grounding wire 3 is firmly fixed to the sleeve 2, and the sleeve 2 can be firmly connected to the grounding rod 1. Moreover, when the centers of the first slot 25 and the second slot 26 are respectively on the two sides of the center line X, the positioning component 28 is screwed and fixed in the first slot 25 and the second slot. The center of the metal wire 31 of the slot 26 is offset from the center line X. Thus, the connection of the ground wire 3 to the sleeve 2 can be more secure. Alternatively, since the opposite surface of the first block 23 and the second block 24 forming the crack 22 is a stepped surface, a wave surface or a sloped surface, the connection between the grounding wire 3 and the sleeve 2 can also achieve a relatively strong effect. .

Referring to FIG. 4, which is a second preferred use example of the present invention, the grounding rod 1 is passed through the through hole 21 of the sleeve 2. When the grounding wire 3 has a large diameter, the stranding The metal wires 31 can be separated into at least two strands to be respectively penetrated by the slits 22 on both sides of the positioning member 28, and the two metal wires 31 are re-twisted together at the bottom of the positioning member 28. Furthermore, the plurality of slots 25, 26 provided in the sleeve 2 are passed through, and then the plurality of metal wires 31 are re-twisted together at the bottom of the sleeve 2. In the present embodiment, the stranded metal wires 31 can be divided into at least two strands, and the two strands of metal wires 31 pass through the first slot holes 25 and the second slot holes 26, respectively, and then the two strands of metal wires 31 are respectively The strands 2 of the present invention are also applicable when the grounding wire 3 is of a larger diameter, and the grounding wire 3 can also be firmly fixed to the casing 2. Moreover, the first block 23 and the second block 24 are fastened by the positioning component 28, and the sleeve 2 can also be fastened to the ground rod 1 by the hole wall forming the through hole 21, so that the sleeve 2 and the grounding The stick 1 is firmly connected.

Referring to Figures 5 and 6, the grounding wire 3 of the present invention is coupled to the sleeve 2, since the metal wire 31 is firstly passed through the first slot 25, and then the bottom of the sleeve 2 is folded back. After the second slot 26 is formed, or the metal wires 31 are respectively disposed in the first slot 25 and the second slot 26, the two metal wires 31 are further twisted at the bottom of the sleeve 2. In this way, when the ground rod 1 of the combined sleeve 2 is embedded in the ground surface by tapping, the grounding wire 3 and the sleeve 2 are not detached, and there is a strong connection.

Referring to FIG. 7, which is a second preferred embodiment of the sleeve 4, the sleeve 4 can also be made of various conductive materials, and the sleeve 4 itself is provided with a through-and-out passage. The hole 41 and a slit 42 communicate with the through hole 41 to divide the sleeve 4 into a first block 43 and a second block 44 by a center line X. The first block 43 and the second block 44 are provided with slits 42 which can be changed in the vertical direction, that is, the thickness of the first block 43 and the second block 44 are changed to make the first block The opposite surface of the block 43 and the second block 44 forming the crack 42 is formed with a difference 45, 46, which may be a step surface, a wave surface, a rack surface or a slope, in this embodiment, The thickness of the upper portion of the first block 43 is smaller than the thickness of the lower portion to form the difference 45, and the thickness of the upper portion of the second block 44 is greater than the thickness of the lower portion to form the difference 46.

As shown in FIGS. 8 and 9, when the grounding conductor 3 is to be coupled to the sleeve 4, the positioning member 48 is firstly disposed in the positioning hole 47 of the first block 43 and the second block 44. Then, the metal wire 31 of the grounding wire 3 is penetrated by the crack 42 between the first block 43 and the second block 44, and the metal wire 31 is folded back around the positioning member 48. Or as shown in FIG. 6, the metal wires 31 are respectively inserted into the cracks 42 between the first block 43 and the second block 44 on the two sides of the positioning member 48, and the two metal wires 31 are twisted. At the bottom of the positioning member 48, the metal wire 31 can be firmly clamped by the first block 43 and the second block 44 by the screwing of the nut 481 and the washer 482. Thus, the metal wire 31 is It can also be fixed firmly.

The casing structure of the ground rod of the present invention can be used for the grounding wire to be folded back, or the stranded metal wire can be stranded and then stranded. Thus, the present invention has the grounding wire firmly The effect of fixing it on the sleeve effect.

The sleeve structure of the ground rod of the present invention, since the sleeve system can be used for the grounding wire to be folded back, or the stranded metal wire is divided into two or more strands and then twisted, the present invention The casing has the effect of being applicable to grounding conductors of various diameters.

The sleeve structure of the ground rod of the present invention is fixed to the ground rod by the positioning component, so that when the ground rod and the sleeve are buried in the ground surface by tapping, the sleeve system can be grounded together The rod is buried below the ground surface, and the invention has the effect of firmly fixing the grounding wire and the sleeve to the ground surface.

While the invention has been described in connection with the preferred embodiments described above, it is not intended to limit the scope of the invention. The technical scope of the invention is protected, and therefore the scope of the invention is defined by the scope of the appended claims.

[this invention]

1. . . Ground rod

11. . . First end

12. . . Second end

2. . . casing

twenty one. . . Through hole

twenty two. . . Fracture

twenty three. . . First block

231. . . Groove

232. . . Groove

233. . . Stop

twenty four. . . Second block

241. . . Groove

242. . . Groove

243. . . Stop

25. . . First slot

26. . . Second slot

27. . . Positioning hole

28. . . Positioning element

281. . . Nut

282. . . washer

29. . . Sinking

3. . . Ground wire

31. . . Metal wire

4. . . casing

41. . . Through hole

42. . . Fracture

43. . . First block

44. . . Second block

45. . . Difference

46. . . Difference

47. . . Positioning hole

48. . . Positioning element

481. . . Nut

482. . . washer

49. . . Sinking

Fig. 1 is an exploded perspective view showing a first embodiment of the present invention.

Fig. 2 is a cross-sectional view showing the first use case of the present invention in combination.

Figure 3: A cross-sectional view taken along line 3-3 of Figure 2.

Fig. 4 is a cross-sectional view showing a second use case as shown in Fig. 3.

Fig. 5 is a view showing the state of the buried surface of the first use case of the present invention.

Fig. 6 is a view showing the state of the buried surface of the second use case of the present invention.

Figure 7 is an exploded perspective view of a second embodiment of the present invention.

Figure 8 is a cross-sectional view showing the second embodiment of the present invention in combination.

Figure 9: Sectional view along line 9-9 of Figure 8.

1. . . Ground rod

11. . . First end

12. . . Second end

2. . . casing

twenty one. . . Through hole

twenty two. . . Fracture

twenty three. . . First block

231. . . Groove

232. . . Groove

233. . . Stop

twenty four. . . Second block

241. . . Groove

242. . . Groove

243. . . Stop

25. . . First slot

26. . . Second slot

27. . . Positioning hole

28. . . Positioning element

281. . . Nut

282. . . washer

29. . . Sinking

3. . . Ground wire

31. . . Metal wire

Claims (8)

The casing structure of the grounding rod is made of a conductive material, and the sleeve itself is provided with a through hole penetrating through the top and a crack, and the crack communicates with the through hole, so that the sleeve is divided into a first block and a first block The second block and the second block set the bit holes for the positioning component to be pierced, so that the crack spacing between the first block and the second block can be changed. The casing structure of the ground rod according to claim 1, wherein at least a stop is formed at an edge of the first block or the second block, and the stop is tied to form the horizontal crack. The first block or/and the second block edge of the open end protrudes toward the other block. The sleeve structure of the ground rod according to claim 1, wherein the opposite surfaces of the first block and the second block are respectively provided with a plurality of corresponding grooves to form at least two or more slots. . The casing structure of the ground rod according to claim 3, wherein the crack of the first block and the second block has a center line, and the centers of the plurality of slots are respectively located on two sides of the center line. . The casing structure of the ground rod according to claim 1, wherein the first block and the second block form a vertical difference surface of the crack to form a difference, and the difference is a step surface and a wave surface. , rack surface or bevel. The casing structure of the ground rod according to claim 1, 2, 3, 4 or 5, wherein one of the outer surfaces of the first block or the second block is provided with a counterbore or a sinking groove . The casing structure of the ground rod according to claim 1, 2, 3, 4 or 5, wherein the casing can be combined with a metal wire of a ground wire, and the metal wire is positioned by the casing A slit on one side penetrates and bypasses the positioning element and then folds back to the other side of the positioning element. The casing structure of the ground rod according to the first, second, third, fourth or fifth aspect of the patent application, wherein the casing can be combined with the metal wire of the grounding wire, and the metal wire is divided into two strands to respectively The two sides of the positioning member are pierced by the slit on the two sides of the positioning member of the sleeve, and the two metal wires are re-twisted together at the bottom of the positioning member.