JP3168809U - Connection terminal box auxiliary clamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a connection terminal box auxiliary clamp which can be easily tightened even with an ordinary tool and can be safely and surely performed even in a high place work. SOLUTION: A pair of sandwiching bodies 10 are formed by penetrating a tightening bolt in the center of the longitudinal direction and tightening with a fixing nut. The sandwiching grooves 11 are formed so as to face each other on the opposite side surfaces of the longitudinal end portions of the sandwiching body 10. The sandwiching body 10 has a square block shape. The sandwiching surface 12 is formed in a quadrangular plane on the opposite side surfaces of the sandwiching body 10. A quadrangular outer surface 13 is formed on the back surface of the sandwiching surface 12. Chamfered portions 14 are formed at both longitudinal ends of the outer side surface 13 to provide continuous roundness from the outer surface 13 along the longitudinal ends of the sandwiching surface 12. [Selection diagram] Fig. 5

Description

  TECHNICAL FIELD The present invention relates to a connection terminal box auxiliary clamp used for a suspension line extension work or a suspension line extension work of an aerial cable.

  Conventionally, when the suspending line that suspends the connection terminal box from the utility pole has deteriorated over time, such as rusting, a suspending line replacement work is performed to replace the suspending line with a new suspending line. In this case, when the connection terminal box is still usable, as shown in FIG. 6, the existing suspension line S suspended from the connection terminal box P is cut and replaced with the new suspension line Q together with the existing suspension line S. Work is being done.

  In this operation, the connection terminal box auxiliary clamp described in Patent Document 1 is used. As shown in FIG. 7, the connection terminal box auxiliary clamp 100 includes a pair of sandwiching bodies 110 that sandwich the upper suspension line Q and a pair of sandwiching bodies 120 that sandwich the existing suspension line S. A single connecting bolt 130 is inserted through the clamp body 110 and the clamp members 110 and 120 are fastened with fixing nuts 115 and 125, respectively.

  The conventional connection terminal box auxiliary clamp 100 is used for extension work for extending the suspension line Q when moving the utility pole, in addition to the old and new replacement work of the suspension line Q. In this extension work, a connecting terminal box auxiliary clamp 100 is connected to an interruption support line (not shown) extending the suspension line Q, and an existing suspension line S is connected to the connection terminal box auxiliary clamp 100, The connection terminal box P can be moved without disassembling the side wall.

Japanese Utility Model Publication 5-45067

  In the operation using the conventional connection terminal box auxiliary clamp 100 shown in Patent Document 1, when the connection terminal box auxiliary clamp 100 is connected to the suspension line Q or the split support line, the connecting bolt 130 of the connection terminal box auxiliary clamp 100 is used. There is a risk of touching the overhead cable R and damaging the overhead cable R. Therefore, for the purpose of preventing damage to the aerial cable R, the surface of the aerial cable R that contacts the connection terminal box auxiliary clamp 100 is protected by the spiral sleeve 200, and both ends of the spiral sleeve 200 are fixed by the PVC tape 300. It was necessary to do a lot of work.

  As shown in FIG. 7, according to the conventional connection terminal box auxiliary clamp 100, the clamping bodies 110 and 120 arranged above and below are tightened with the fixing nuts 115 and 125, respectively. However, since the distance between the fixing nuts 115 and 125 is narrow, it is difficult to tighten with a normal wrench, and there is a problem that workability when the connection terminal box auxiliary clamp 100 is mounted is poor.

  In general, it is desirable to use fewer tools from a safety standpoint when working at a high place. Therefore, work using another tool, such as the fixing nuts 115 and 125 of the connection terminal box auxiliary clamp 100, is not preferable for work at a high place because the interval is narrow. Therefore, there has been a demand for a connection terminal box auxiliary clamp that can be easily tightened even with the above tool.

  Accordingly, the present invention has been devised to solve the above-mentioned problems, and provides a connection terminal box auxiliary clamp that can be easily tightened even with a normal tool and that can be safely and reliably performed even at high places. It is the purpose.

In order to achieve the above-mentioned object, the first means of the present invention is a connection terminal box used for construction in which the connection terminal box P suspended from the existing suspension line S is replaced with a new linear member together with the existing suspension line S. In the auxiliary clamp,
A through-hole 15 for allowing the fastening bolt 20 to pass through is opened in the center of the sandwiching body 10 having a square block shape, and the fastening bolt 20 is inserted into the through-holes 15 of the pair of sandwiching bodies 10 stacked. A pair of clamping bodies 10 are tightened with a fixing nut 30 screwed to the tightening bolt 20;
The sandwiching groove 11 for holding the side surface of the new linear member and the side surface of the existing suspension line S is formed on the opposing side surfaces of the longitudinal end portions of the sandwiching body 10 so as to face each other.

  The second means forms a sandwiching surface 12 that faces when the pair of sandwiching bodies 10 are overlapped, and forms the sandwiching grooves 11 at both longitudinal ends of the sandwiching surface 12. Then, chamfered portions 14 are formed at both longitudinal end portions of the outer surface 13 located on the back side of the sandwiching surface 12, and the chamfered portion 14 continues from the outer surface 13 along the longitudinal end portion of the sandwiched surface 12. It is rounded.

  In the third means, the sandwich body 10 includes a thick reinforcing ring portion 16 surrounding the through hole 15 on the outer surface 13 of the sandwich body 10 and an outer surface 13 adjacent to the reinforcing ring portion 16. The light-weight concave portion 17 formed by reducing the thickness of the steel plate and the thick reinforcing strip portion 18 extending from the reinforcing ring portion 16 to the insertion hole 17 are formed.

  As described in claim 1 of the present invention, the sandwiching grooves 11 for holding the side surface of the new linear member and the side surface of the existing suspension line S are opposed to the opposite side surfaces of the longitudinal end portions of the sandwiching body 10. The tightening bolts 20 are inserted into the through holes 15 of the pair of sandwiched bodies 10 that are formed in such a manner that the pair of sandwiched bodies 10 are tightened by the fixing nuts 30 screwed to the tightening bolts 20. By comprising, it can mount | wear with a very simple operation | work compared with the conventional connection terminal box auxiliary clamp 100. FIG. As a result, in addition to the old and new replacement work of the suspension line Q, extension work for extending the suspension line Q when moving the utility pole can be performed very easily.

  Further, as in claim 2, chamfered portions 14 are formed at both longitudinal end portions of the outer side surface 13 of the sandwiched body 10, and roundness that continues from the outer side surface 13 along the longitudinal end portion of the sandwiched surface 12 is provided. 7, when the connection terminal box auxiliary clamp 100 is connected to the suspension line Q as in the conventional connection terminal box auxiliary clamp 100 shown in FIG. 7, the connection bolt 130 of the connection terminal box auxiliary clamp 100 contacts the aerial cable R. The risk of damaging the overhead cable R has been resolved. As a result, many operations such as protecting the surface of the aerial cable R with the spiral sleeve 200 and fixing both ends of the spiral sleeve 200 with the PVC tape 300 become unnecessary, and the mounting operation can be simplified.

  Further, as in claim 3, a thick reinforcing ring portion 16 surrounding the through hole 15 through which the tightening bolt 20 is passed, and an outer surface adjacent to the reinforcing ring portion 16, on the outer surface 13 of the sandwiched body 10. One that penetrates the sandwiched body 10 by forming a lightweight recess 17 formed by reducing the thickness of the side surface 13 and a thick reinforcing strip 18 extending from the reinforcing ring 16 to the insertion hole 17. The clamping strength by the tightening bolt 20 and the fixing nut 30 can be increased.

  That is, the reinforcing ring portion 16 can increase the tightening strength when the clamping bolt 20 is inserted into the sandwiching body 10 and tightened with the fixing nut 30. Moreover, the lightweight recessed part 17 makes the weight of the clamping body 10 as light as possible, and makes the carrying work to a high place easy. Furthermore, the reinforcing strip 18 increases the strength of the sandwich body 10 in a light state. In particular, the reinforcing strip 18 is formed from the reinforcing ring portion 16 to increase the strength of the sandwich body 10 in a well-balanced manner. Succeeded.

  Therefore, it is possible to reliably attach the sandwiching bodies 10 to the old and new suspension lines Q in the suspension line Q replacement work and the interrupt support lines in the extension work of the suspension line Q. In addition, since this operation can be performed with a normal spanner, electrical connection can be performed safely and reliably even at high places.

It is a front view which shows the use condition of this invention. It is a perspective view which shows the clamping body at the time of mounting | wearing of this invention. It is a perspective view which shows one Example of the clamping body of this invention. It is a front view which shows one Example of the clamping body of this invention. It is a partially cutaway side view showing an embodiment of the present invention. It is a front view which shows the use condition of the conventional earth clamp. It is a front view which shows the mounting state of the conventional earth clamp.

  According to the present invention, it has succeeded in providing a connection terminal box auxiliary clamp that can be easily tightened even with a normal tool and that can be safely and reliably performed even in a work at a high place.

  Hereinafter, the present invention will be described based on illustrated examples. The present invention is a connection terminal box auxiliary clamp that is used for a construction in which the connection terminal box P suspended from the existing suspension line S is replaced with a new linear member together with the existing suspension line S (see FIG. 1).

  The sandwiching body 10 is a pair of members that pass through the fastening bolt 20 in the longitudinal center and are fastened with a fixing nut 30 and is provided in a square block shape with a metal material (see FIG. 3). In the example of illustration, it has the clamping surface 12 in which the opposing side surface was formed in planar shape, and the outer side surface 13 of the rectangular shape located in the back of this clamping surface 12 (refer FIG. 5).

  The sandwiching grooves 11 are formed so as to face each other on opposite side surfaces of the longitudinal end portions of the sandwiching body 10 (see FIG. 5). The sandwiching groove 11 sandwiches and holds the old and new suspension lines Q in the suspension line Q replacement work and the split support lines in the extension work of the suspension line Q.

  Further, chamfered portions 14 are formed at both longitudinal end portions of the outer side surface 13 of the sandwiched body 10, and roundness that continues from the outer side surface 13 along the longitudinal end portion of the sandwiched surface 12 is provided (see FIG. 5). With this chamfered portion 14, there is no risk of damaging the existing suspension line S even if the end of the sandwiched body 10 contacts the existing suspension line S.

  Further, a thick reinforcing ring portion 16 is formed on the outer side surface 13 of the sandwiching body 10 so as to surround the through hole 15 through which the tightening bolt 20 passes (see FIG. 4). The reinforcement ring portion 16 is configured to increase the tightening strength when the tightening bolt 20 is inserted into the sandwich body 10 and tightened with the fixing nut 30.

  Further, the outer surface 13 adjacent to the reinforcing ring portion 16 is thinned to form a lightweight recess 17 (see FIG. 3). The lightweight recess 17 is configured to make the weight of the sandwiched body 10 as light as possible.

  Then, a thick reinforcing strip portion 18 extending from the reinforcing ring portion 16 to the lightweight concave portion 17 is formed. This reinforcing strip 18 increases the strength of the sandwich body 10 in a lightweight state. In particular, the reinforcement strip 18 is formed from the reinforcing ring portion 16 to increase the strength of the sandwich body 10 in a well-balanced manner. Yes.

  The shape of the sandwiched body 10 and the shape of each part of the outer side surface 13 are not limited to the illustrated examples, and can be freely changed in design without changing the gist of the present invention.

  In the present invention, it is explained as a connection terminal box auxiliary clamp that is connected to the old and new suspension lines Q in the suspension line Q replacement work and the extension support line in the extension work of the suspension line Q. It can be used by connecting to a suspension line and a support line.

P terminal box Q suspension line R overhead cable S existing suspension line 10 clamping body 11 clamping groove 12 clamping surface 13 outer side surface 14 chamfered portion 15 through hole 16 reinforcing ring portion 17 lightweight recess portion 18 reinforcing strip portion 20 tightening bolt 30 Fixing nut 100 Connecting terminal box auxiliary clamp 110 Clamping body 115 Fixing nut 120 Clamping body 125 Fixing nut 130 Connecting bolt 200 Spiral sleeve 300 PVC tape

Claims (3)

  In the connection terminal box auxiliary clamp used for the construction of replacing the connection terminal box suspended from the existing suspension line with a new linear member together with the existing suspension line, a clamping bolt is provided in the center of the square block shaped clamp. A through-hole that penetrates the pair of clamps is opened, a fastening bolt is inserted into the through-holes of the stacked pair of clamps, and the pair of clamps is tightened with a fixing nut screwed to the clamp bolt. A connection groove characterized in that a sandwiching groove for holding a side surface of a new linear member and a side surface of an existing suspension line is formed on each side surface of the both ends of the sandwiching body facing each other so as to face each other. Terminal box auxiliary clamp.   The opposing surfaces when the pair of sandwiched bodies are stacked are formed as planar sandwiched surfaces, the sandwiched grooves are formed at both longitudinal ends of the sandwiched surfaces, and the back of the sandwiched surfaces is 2. The connection terminal box auxiliary clamp according to claim 1, wherein chamfered portions are formed at both longitudinal end portions of the outer side surface, and the rounded portion that is continuous from the outer side surface along the longitudinal end portion of the clamping surface is provided at the chamfered portion.   The sandwich body is formed on the outer surface of the sandwich body with a thick reinforcing ring portion surrounding the through hole, and a lightweight recess formed by reducing the thickness of the outer surface adjacent to the reinforcing ring portion, The connection terminal box auxiliary clamp according to claim 1 or 2, wherein a thick reinforcing strip portion extending from the reinforcing ring portion to the insertion hole is formed.

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