JP2010102979A - Wire connection device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wire connection device capable of surely connecting electric wires without compressing a sleeve and further capable of performing connection work of the wires at a high place safely and easily. <P>SOLUTION: The wire connection device is provided with a first cylindrical tightening tool 20 which has a first taper member 23a capable of displacing in radial direction and of which inside the first taper member 23a, the end part of one of electric wire 101 can advance, a second cylindrical tightening tool 30 which has a second taper member 33a capable of displacing in radial direction and of which inside the second taper member 33a, the end part of the other electric wire 102 can advance, a connecting tube body 10 into which the first tightening tool 20 and the second tightening tool 30 can be inserted and has a first taper hole 12 to face the first taper member 23a and has a second taper hole 13 to face the second taper member 33a, and pressing screws 40 which are screwed movably to the connecting tube body 10 and press the first tightening tool 20 and the second tightening tool 30 inserted into the connecting tube body 10 to the axial direction. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an electric wire connecting device used for connecting electric wires, and more particularly to an electric wire connecting device capable of connecting electric wires without using a compression tool.

  When connecting electric wires, a sleeve is used in order to ensure the performance (electrical, thermal, mechanical performance) defined by the electrical equipment technical standards. In the electric wire connecting method using a sleeve, after the electric wire is inserted into the sleeve from the left and right, the sleeve is compressed by a compression device having a strong compressive force. By this compression, the sleeve and the electric wire are firmly adhered, and the electric wire is securely connected electrically and mechanically through the sleeve. In addition, when connecting a jumper line to bypass the power line, since a large tension is not normally applied to the jumper line, a connector called a socket type clamp or a PG type clamp is used for a relatively small capacity power line. In the connection of the jumper line in the capacitive power line, the connection of the electric wire by compression is performed in the same manner as described above.

As an example of a method for compressing a wire sleeve using a compression sleeve, there is a technology for automatically equalizing the conductor lengths of the left and right wires to be connected, and enhancing the effect of preventing leakage of the compound outside the sleeve during sleeve compression. It is known (for example, refer to Patent Document 1).
JP 2006-185902 A

  However, since the sleeve compression device for connecting the electric wires requires a robust structure, the total weight exceeds 100 kg, and in order to connect the electric wires in the mountains, the compression device is There was a problem that it had to be carried into the department and required a lot of labor for transportation. In addition, socket-type clamps and PG-type clamps are used for jumper wires that bypass relatively small-capacity power lines, but it is necessary to temporarily remove the clamping nuts etc. during wire connection work at high places There is a risk of inadvertently dropping the tightening nut. Therefore, it is desired to develop a technique that can securely connect an electric wire without compressing the sleeve and connect the electric wire safely and easily when connecting the electric wire at a high place.

  Accordingly, an object of the present invention is to provide an electric wire connecting device that can securely connect electric wires without compressing a sleeve and that can safely and easily connect electric wires at high places. To do.

  In order to achieve the above object, the invention according to claim 1 includes a first taper piece that is radially displaceable, and a tube in which an end of one electric wire can enter inside the first taper piece. A cylindrical first fastener, and a second tubular fastener having a second taper piece that is radially displaceable and into which the end of the other wire can enter the second taper piece And a first tapered hole that can be inserted into the first fastener and the second fastener and has a first tapered hole that faces the first tapered piece and that faces the second tapered piece. The connecting pipe body, and the first fastener and the second fastener inserted in the connecting pipe body movably screwed into the connecting pipe body and pressed in the axial direction. One taper piece is bitten into the inner surface of the first taper hole and the second tape A wire connection comprising: a pressing screw that bites the par piece into the inner surface of the second tapered hole and displaces the first tapered piece and the second tapered piece radially inwardly. Device.

  According to this invention, when the first fastener and the second fastener are pressed in the axial direction by the pressing screw, the taper piece of each fastener bites into the inner surface of each taper hole, and each taper The piece is displaced radially inward by the wedge force. Thereby, each taper piece comes into close contact with the end of each electric wire with a strong force, and the end of each electric wire is firmly connected to each taper piece.

  According to a second aspect of the present invention, in the electric wire connecting device according to the first aspect, a plurality of the first tapered pieces and the second tapered pieces are formed at predetermined intervals in the circumferential direction. It is said.

  According to the first aspect of the present invention, since the electric wire can be securely connected without compressing the sleeve, a heavy sleeve compression device is not required, and the electric wire can be easily connected in a mountainous area. It becomes. Moreover, only by rotating a press screw in the state which inserted the electric wires to connect to an electric wire connection apparatus, electric wires can be connected reliably and the electric wire connection operation in a high place becomes remarkably easy. Furthermore, by connecting each fastener and pressing screw to the connecting pipe body in advance before connecting the wires, there is no need to remove the connecting components when connecting the wires. Can be prevented from falling.

  According to the second aspect of the present invention, since the plurality of first taper pieces and second taper pieces are formed at a predetermined interval in the circumferential direction, each taper piece extends around the end of each electric wire in the circumferential direction. The electrical contact resistance can be reduced by increasing the contact area of the connection location.

  Next, embodiments of the present invention will be described in detail with reference to the drawings.

  1 to 9 show an embodiment of the present invention. As shown in FIG. 1, the wire connecting device 1 for connecting the wire 101 and the wire 102 mainly includes a connecting pipe main body 10, a first fastener 20, a second fastener 30, and a pressing screw 40. have. The connecting pipe body 10 is made of a metal member having high conductivity. The central part 11 in the longitudinal direction of the connecting pipe main body 10 has a taper shape in which the central part has the maximum outer diameter, and the outer diameter gradually decreases toward the end in the axial direction. A first male screw 18 that is continuous with the central portion 11 and extends in the axial direction is formed at one end of the connecting pipe main body 10. The length of the first male screw 18 in the axial direction is set to L1. A second male screw 19 is formed at the other end of the connecting pipe main body 10 so as to be continuous with the central portion 11 and extend in the axial direction. The length of the second male screw 19 in the axial direction is set to L2.

  As shown in FIG. 2, a first tapered hole 12 and a second tapered hole 13 extending along the axis C are formed in the central portion 11 of the connecting pipe main body 10. The first tapered hole 12 is formed on the left side from the center of the central portion 11 and extends to the root of the first male screw 18. The second tapered hole 13 is formed on the right side from the center of the central portion 11 and extends to the root of the second male screw 19. The first tapered hole 12 has the largest inner diameter on the center side of the central portion 11, and the inner diameter gradually decreases toward the first male screw 18 side. That is, the first tapered hole 12 is formed so that the inner diameter gradually decreases as it goes outward in the axial direction. The second tapered hole 13 has the largest inner diameter on the center side of the central portion 11, and the inner diameter gradually becomes smaller toward the second male screw 19 side. That is, the second tapered hole 13 is formed so that the inner diameter gradually decreases as it goes outward in the axial direction.

  A first insertion hole 16 that is continuous with the first tapered hole 12 and extends along the axis C is formed on the first male screw 18 side of the connecting pipe body 10. The first insertion hole 16 is a straight hole having the same inner diameter over the entire length (length L1), and the inner diameter D1 is set to a size that allows the first fastener 20 to be inserted. The inner diameter D1 is set to be the same as the smallest diameter of the end of the first tapered hole 12. A second insertion hole 17 that is continuous with the second tapered hole 13 and extends along the axial center C is formed on the male screw 19 side of the connecting pipe body 10. The second insertion hole 17 is a straight hole having the same inner diameter over the entire length (length L2), and the inner diameter D2 is set to a size that allows the second fastener 30 to be inserted. The inner diameter D <b> 2 is set to be the same as the diameter of the terminal end where the second tapered hole 13 becomes the smallest. Here, the inner diameter D1 and the inner diameter D2 do not have to be the same, and the inner diameter D1 and the inner diameter D2 are changed to optimum values according to the outer diameter of the electric wire to be connected, and the connecting pipe body 10 and the respective fasteners 20, By appropriately changing each dimension of 30, it is possible to connect wires having different outer diameters.

  A partition wall 14 that partitions the first tapered hole 12 and the second tapered hole 13 is formed at the center of the central portion 11 of the connecting pipe body 10. The partition wall 14 is formed by cutting the first tapered hole 12 and the second tapered hole 13 to a predetermined length in the axial direction from the axial end surface of the connecting pipe body 10. The end portion of the electric wire 101 and the end portion of the electric wire 102 can come into contact with the partition wall 14, and the electric wire 101 and the electric wire 102 can be inserted into the connecting pipe body 10 only by a predetermined length. A confirmation window 15 for visually confirming the position of the end of the electric wire 101 and the end of the electric wire 102 inserted into the connecting tube main body 10 is formed in the central portion 11 of the connecting tube main body 10. The confirmation window 15 is formed in a substantially rectangular shape extending in the axial direction of the connecting pipe body 10, and the length in the circumferential direction is set slightly longer than the outer diameters of the electric wires 101 and 102.

  A first fastener 20 can be inserted into the first tapered hole 12 of the connecting pipe body 10. The 1st fastener 20 is comprised from the cylindrical metal member which has high electroconductivity. As shown in FIG. 3, the first fastener 20 is integrally formed with a disc-shaped flange portion 21 and a cylindrical tube portion 23. The flange portion 21 is located at one end portion of the cylindrical portion 23 and extends radially outward from the outer surface of the end portion of the cylindrical portion 23. A connecting hole 22 extending along the axis C is formed in the flange portion 21 and the cylindrical portion 23. The diameter D3 of the connection hole 22 is slightly larger than the outer diameter of the electric wire 101, and the end of the electric wire 101 can be easily inserted. The other of the cylindrical portions 23 is formed in a first taper piece 23a that is displaceable inward in the radial direction (reducing diameter direction).

  As for the 1st taper piece 23a, the outer peripheral surface is formed in the taper surface. The first taper piece 23a is formed so that the outer diameter on the base side is the same as the outer diameter D4 of the cylindrical portion 23, and the outer diameter D5 on the free end side is set larger than the outer diameter D4. The inner diameter D6 of the inner surface of the first taper piece 23a is the same as the inner diameter D3 of the connection hole 22, and the electric wire 101 can easily enter the inside of the first taper piece 23a. As shown in FIGS. 3 and 4, four first taper pieces 23a are formed at a predetermined interval in the circumferential direction, and two of the first taper pieces 23a facing each other have a length from the root. L4 is set. The other two first taper pieces 23a have a length from the base set to L3 and are set to be shorter than the length L4. Thus, the length of the two first taper pieces 23a is shortened so that the tip of the electric wire 101 entering the inside of the first taper piece 23a can be easily confirmed visually. is there. In this embodiment, the first tapered pieces 23a are formed so as to face each other, and the total of the first tapered pieces 23a is an even number, but the number of the first tapered pieces 23a is an odd number. It is good also as a structure.

  As shown in FIG. 7, in a state where the first fastener 20 is inserted into the connecting pipe body 10, the first tapered piece 23 a is opposed to the first tapered hole 12, The taper hole 12 can be in close contact with the inner surface. That is, the first taper hole 12 and the first taper piece 23a have the same slope on the opposing surface, and the first fastener 20 is moved outward in the axial direction, whereby each first The tapered piece 23a bites into the inner surface of the first tapered hole 12. Thus, a wedge force acting radially inward acts on each first taper piece 23a, and the electric wire 101 that has entered the inside of each first taper piece 23a is displaced inward in the radial direction. The first taper piece 23a is firmly connected.

  A second fastener 30 can be inserted into the second tapered hole 13 of the connecting pipe body 10. The 2nd fastener 30 is comprised from the cylindrical metal member which has high electroconductivity. As shown in FIG. 1, the second fastener 30 is integrally formed with a disk-shaped flange portion 31 and a cylindrical tube portion 33. The collar portion 31 is located at one end portion of the cylindrical portion 33 and extends radially outward from the outer surface of the end portion of the cylindrical portion 33. A connecting hole 32 extending along the axis C is formed in the collar portion 31 and the cylindrical portion 33. The diameter of the connection hole 32 is slightly larger than the outer diameter of the electric wire 102, and the end of the electric wire 102 can be easily inserted. The other side of the cylindrical part 33 is formed in the 2nd taper piece 33a which can be displaced to radial inside (diameter reduction direction). Since the structure of the second taper piece 33a conforms to the first taper piece 23a of FIG. 3, the details of its shape and dimensions are omitted.

  As shown in FIG. 7, in a state where the second fastener 30 is inserted into the connecting pipe body 10, the second taper piece 33 a faces the second taper hole 13, and The taper hole 13 can be in close contact with the inner surface. That is, the second taper hole 13 and the second taper piece 33a have the same slope on the opposing surface, and the second fastener 30 is moved outward in the axial direction, so that each second The taper piece 33 a bites into the inner surface of the second taper hole 13. Thereby, a wedge force acting radially inward acts on each second taper piece 33a, and the electric wire 102 that has entered the inside of each second taper piece 33a is displaced inward in the radial direction. The second taper piece 33a is firmly connected.

  A pressing screw 40 is screwed onto the first male screw 18 of the connecting pipe body 10. As shown in FIG. 6, the outer shape of the pressing screw 40 is a substantially disk shape, and a female screw 40 a that can be screwed with the first male screw 18 is formed on the shaft center. The pressing screw 40 can move in the axial direction of the connecting pipe main body 10 by rotating around the axis, and can come into contact with the flange portion 21 of the first fastener 20. A part of the outer peripheral surface of the pressing screw 40 is cut out to engage a tool (not shown) that rotates the pressing screw 40 about its axis, and the cutting width is set to W. The first male screw 18 can be screwed with a nut 41 that functions as a locking stopper for the pressing screw 40, and the nut 41 has a female shaft that can be screwed with the first male screw 18. A screw 41a is formed. In order to engage the nut 41 with a tool (not shown) that rotates the nut 41 about its axis, a part of the outer peripheral surface is cut out in the same manner as the pressing screw 40, and the cutting width W is the pressing screw. The same dimension as 40 is set. The sum of the axial length of the pressing screw 40 and the axial length of the nut 41 substantially coincides with the axial length L1 of the first male screw 18. Thereby, in a state where the pressing screw 40 and the nut 41 are completely screwed into the first male screw 18, the flange portion 21 of the first fastener 20 is connected to the first male screw 18 as shown in FIG. 7. It comes in contact with the end face.

  Similarly, a pressing screw 40 is screwed onto the second male screw 19 of the connecting pipe body 10. The pressing screw 40 screwed into the second male screw 19 can move in the axial direction of the connecting pipe body 10 by rotation, and can come into contact with the flange portion 31 of the second fastener 30. Yes. A nut 41 that functions as a locking stopper for the pressing screw 40 can be screwed into the second male screw 18. The sum of the axial length of the pressing screw 40 and the axial length of the nut 41 substantially matches the axial length L2 of the second male screw 19. Thereby, in a state where the pressing screw 40 and the nut 41 are completely screwed into the second male screw 19, the flange portion 31 of the second fastener 30 is connected to the second male screw 19 as shown in FIG. 7. It comes in contact with the end face. The first male screw 18, the second male screw 19, and the pressing screw 40 are many (about 1-2 times the outer diameter of the male screws 18, 19) even when the pressing screw 40 is moved in the axial direction. It is desirable in terms of strength to set the axial length so that the threads and valleys are screwed together.

  In this manner, each pressing screw 40 presses the first fastener 20 and the second fastener 30 outward in the axial direction, so that the first taper piece 23a is pushed into the first taper hole 12. The second taper piece 33a is caused to bite into the inner surface of the second taper hole 13, and the first taper piece 23a and the second taper piece 33a are displaced inward in the radial direction. is doing.

  Below, the connection procedure and effect | action of an electric wire by the electric wire connection apparatus 1 in this embodiment are demonstrated.

  In electrical work or the like in a power transmission tower, when the power lines are bypassed, the electric wires 101 and 102 as jumper wires are used. When connecting the electric wire 101 and the electric wire 102, the press screw 40 and the nut 41 are respectively screwed into the connecting pipe body 10 in advance before starting the connection work, and the first fastener 20 and the second fastener are connected to the connecting pipe body 10 in advance. The fastener 30 is inserted and the electric wire connecting device 1 is set in a completely assembled state. In the electric wire connecting device 1, the outer diameter D5 of the first taper piece 23a is slightly larger than the inner diameter D1 of the first insertion hole 16, and therefore when the first fastener 20 is inserted into the connecting pipe body 10. For this, each first taper piece 23a is inserted into the first insertion hole 16 with the diameter thereof reduced. Similarly, when inserting the 2nd fastener 30 in the connection pipe main body 10, it inserts in the 2nd insertion hole 17 in the state which diameter-reduced each 2nd taper piece 33a. Then, the fully assembled electric wire connecting device 1 is brought to the high work place of the power transmission tower.

  FIG. 7 shows a state immediately before the connection work of the electric wires 101 and 102 is started. In this state, the flange 21 of the first fastener 20 is in contact with the end surface of the first male screw 18, and the flange 31 of the second fastener 30 is in contact with the end surface of the second male screw 19. is doing. In this state, the electric wire 101 is moved in the direction of the arrow F <b> 1, and the electric wire 101 enters the connection hole 22 of the first fastener 20. Similarly, the electric wire 102 is moved in the direction of arrow F <b> 2, and the electric wire 102 enters the connection hole 32 of the second fastener 30.

  FIG. 8 shows a state in which the electric wire 101 and the electric wire 102 have entered the electric wire connecting device 1. In this state, the tip of the electric wire 101 is in contact with the partition wall 14, and the tip of the electric wire 102 is also in contact with the partition wall 14. Since a confirmation window 15 is formed in the connecting pipe body 10, it is visually confirmed through the confirmation window 15 whether or not the end surface of the electric wire 101 and the end surface of the electric wire 102 are in contact with the partition wall 14. Can do. When the end face of the electric wire 101 and the end face of the electric wire 102 are not in contact with the partition wall 14, sufficient connection strength cannot be obtained. Therefore, when connecting the electric wire 101 and the electric wire 102, The end face of the electric wire 102 is brought into contact with the partition wall 14, and it is necessary to ensure the length of entry of the electric wire 101 and the electric wire 102 into the connecting pipe main body 10. When it can be visually confirmed that the electric wires 101 and 102 are in contact with the partition wall 14, the first fastener 20 is slid axially outward (arrow F3 direction) with respect to the connecting tube body 10, The first taper piece 23 a is brought into close contact with the inner surface of the first taper hole 12. Similarly, the second fastener 20 is slid axially outward (in the direction of arrow F4) with respect to the connection pipe body 10 so that the second taper piece 33a is brought into close contact with the inner surface of the second taper hole 13. To do. In this state, the tips of the electric wires 101 and 102 remain in contact with the partition wall 14.

  FIG. 9 shows a state in which the first fastener 20 and the second fastener 30 are pressed outward in the axial direction by the pressing screw 40. Here, the pressing screw 40 screwed into the first male screw 18 is rotated around the axis by a tool (not shown) and brought into contact with the flange portion 21 of the first fastener 20. Further, by rotating the pressing screw 40 about the axis, the flange 21 is pressed by the pressing screw 40, and the first fastener 20 is moved outward in the axial direction. Thereby, each first taper piece 23a bites into the inner surface of the first taper hole 12 whose inner diameter gradually decreases, and each first taper piece 23a is caused by the wedge force acting on each first taper piece 23a. Displace radially inward. Therefore, the outer peripheral surface of the end portion of the electric wire 101 that has entered the inside of each first taper piece 23a comes into close contact with each first taper piece 23a with a great force. Connected firmly.

  Similarly, by rotating the pressing screw 40 screwed into the second male screw 19 around the axis, the flange 31 of the second fastener 30 is pressed by the pressing screw 40, and the second fastener 30 is moved axially outward. Thereby, each second taper piece 33a bites into the inner surface of the second taper hole 13 whose inner diameter gradually decreases, and each second taper piece 33a is caused by the wedge force acting on each second taper piece 33a. Displace radially inward. Therefore, the outer peripheral surface of the end portion of the electric wire 102 that has entered the inside of each second taper piece 33a comes into close contact with each second taper piece 33a with a great force. Connected firmly.

  Here, since the plurality of first taper pieces 23a and the second taper pieces 33a are formed at a predetermined interval in the circumferential direction, the plurality of taper pieces 23a, 33a can be brought into contact with each other, and the electrical contact resistance can be reduced by increasing the contact area. In addition, after the connection between the electric wire 101 and the electric wire 102, a binding wire or the like is wound around the outer surface of each of the male screws 18 and 19 located between the nut 41 and the end of the central portion 11 of the connecting pipe body 10, By attaching a spring washer (not shown) between the pressing screw 40 and the flange portions 21 and 31, the axial displacement of the nut 41 can be prevented, and the loosening prevention effect of the pressing screw 40 is enhanced. be able to.

  Thus, by using the electric wire connecting device 1, the electric wire 101 and the electric wire 102 can be reliably connected without compressing the sleeve as in the prior art, and a heavy-weight sleeve compressing device is also unnecessary. Therefore, there is no need to carry a heavy-weight sleeve compression device into the mountain area, and the electric wire connection work in the mountain area becomes easy. Moreover, since the electric wire 101 and the electric wire 102 can be reliably connected only by rotating the pressing screw 40 in a state where the electric wire 101 and the electric wire 102 are inserted into the electric wire connecting device 1, the electric wire connecting operation at a high place is possible. Remarkably easy. Furthermore, by connecting the fasteners 20 and 30 and the pressing screw 40 to the connecting pipe body 10 in advance before connecting the wires, there is no need to remove the connecting parts when connecting the wires. It is possible to prevent the connection parts from falling during work.

  The jumper wire using the wire connecting device 1 may be used over a long period of time in addition to being temporarily used in an emergency. When the jumper wire using the wire connection device 1 is used for a long period of time, rainwater enters the end surfaces of the wire 101 and the wire 102 through the confirmation window 15, and corrosion of the ends of the wire 101 and the wire 102 proceeds. There is a fear. Therefore, it is desired that the confirmation window 15 be filled with a waterproof member such as grease or zinc chromate to securely close the confirmation window 15.

  In addition, when the wire connecting device 1 is used for a long period of time, it is desirable to attach a waterproof cap 50 as a waterproof member to the confirmation window 15 and securely close the confirmation window 1 as shown in FIGS. 10 and 11. . The waterproof cap 50 is made of, for example, silicone rubber, and includes a lid portion 50 a that covers the confirmation window 15 and a fitting portion 50 b that can be fitted to the inner peripheral surface of the confirmation window 15. Furthermore, as shown in FIG. 12, the entire wire connecting device 1 is covered with a waterproof cover 60 as a waterproof member, and the end of the waterproof cover 60 is fixed in a state of being in close contact with the electric wires 101 and 102 by a band 61. The entire wire connection device 1 may be protected from rainwater.

  The embodiment of the present invention has been described in detail above, but the specific configuration is not limited to the above-described embodiment, and even if there is a design change or the like without departing from the gist of the present invention, It is included in this invention. For example, in the above-described embodiment, the case where the wire connecting device 1 is used for connecting a jumper wire on which a relatively small tension acts has been described. However, each component constituting the wire connecting device 1 has an extremely high mechanical strength. In addition, it is possible to cope with connection of an electric wire on which a large tension acts. Of course, the electric wire connecting device 1 can cope with not only electric wires of a power transmission tower but also electric wires on flat ground. Furthermore, in order to confirm the approach state of the electric wire 101 and the electric wire 102, although the confirmation window 15 is formed in the connecting pipe main body 10 in the above-mentioned embodiment, the electric wires 101 and 102 themselves are connected to the connecting pipe main body 10 in advance. If the optimum entry length is marked, it is possible to grasp the entry state of the electric wires 101 and 102 from the outside without using the confirmation window 15.

It is an exploded view of the electric wire connection apparatus concerning embodiment of this invention. It is a front view of the connecting pipe main body in the apparatus of FIG. It is an enlarged side view of the 1st fastener in the apparatus of FIG. FIG. 4 is a front view of FIG. 3. It is sectional drawing of the press screw and nut in the apparatus of FIG. FIG. 6 is a front view of the pressing screw of FIG. 5. It is a front view which shows the state just before the start of the electric wire connection operation | work by the apparatus of FIG. It is a front view which shows the state which inserted the electric wire in the apparatus of FIG. It is a front view which shows the state of the electric wire connection completion by the apparatus of FIG. It is a front view which shows the modification of the apparatus of FIG. It is a perspective view of the waterproof cap in the apparatus of FIG. It is a front view which shows another modification of the apparatus of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electric wire connection apparatus 10 Connection pipe main body 11 Center part 12 1st taper hole 13 2nd taper hole 14 Partition wall 15 Confirmation window 16 1st insertion hole 17 2nd insertion hole 18 1st external thread 19 2nd Male screw 20 first fastener 21 collar 22 connection hole 23 cylinder 23a first taper piece 30 second fastener 31 collar 32 connection hole 33 cylinder 33a second taper piece 40 pressing screw 40a female Screw 41 Nut 41a Female screw 50 Waterproof cap (waterproof member)
60 Waterproof cover (waterproof material)

Claims (2)

A cylindrical first fastener having a first taper piece that is radially displaceable and into which an end of one electric wire can enter inside the first taper piece;
A cylindrical second fastener having a second taper piece displaceable in the radial direction and allowing the end of the other electric wire to enter inside the second taper piece;
The first fastener and the second fastener are insertable and have a first tapered hole facing the first tapered piece and a second tapered hole facing the second tapered piece. A connecting pipe body;
The first taper piece is moved in the axial direction by pressing the first fastener and the second fastener, which are movably screwed into the connection pipe body and inserted into the connection pipe body. The first taper piece and the second taper piece are displaced radially inward by causing the second taper piece to bite into the inner surface of the first taper hole and the second taper piece to bite into the inner surface of the second taper hole. A pressing screw;
An electric wire connecting device comprising:   The wire connecting device according to claim 1, wherein a plurality of the first taper pieces and the second taper pieces are formed at a predetermined interval in the circumferential direction.

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