JP2010118264A - Connector for pulldown wire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector for a pulldown wire capable of carrying out mounting work efficiently by indirect hot-line work in a short time. <P>SOLUTION: The connector for the pulldown wire 10 includes a high-voltage wire retention part 8 for obtaining an electric connection state by retaining a high-voltage wire and a pulldown wire retention part 9 for obtaining the electric connection state by retaining a pulldown wire, and consists of a hook part 12 which is formed bent in an arc shape by making the high-voltage wire retention part 8 protruded from a connector body part 11 and capable of hooking from an upper part to the high-voltage wire, and a bolt-like member 24 having a pushing part 16 whose tip is made to be in contact with the high-voltage wire, capable of screwing into the connector body part 11, and carrying out approach/separation action to/from an inner side of the hook part 12 by screw-in/screw-out action. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an underline connector for branching an underline from a high-voltage line installed between utility poles.

  Usually, a lower line for drawing into a transformer is branched from a high-voltage line installed between utility poles. FIG. 7 is an explanatory diagram showing a state where the underline is branched from the high-voltage line. An underline connector 104 is attached to the high voltage line 100, and the underline connector 104 has a main body made of a conductive material, and is configured so that the high voltage line 100 and the low voltage line 102 can be locked together. Therefore, the underline 102 is electrically branched from the high voltage line 100. The underline 102 is branched and then wound around the high-voltage line 100 and pulled down, and the underline connector 104 is covered with the underline connector cover 106.

  The operation of installing the above-described underline connector 104 is performed by an indirect hot wire operation in terms of safety and the like. Here, the indirect hot-line work means work performed by an operator without directly contacting the charging unit by using an insulating tool (such as a yatco, a bolt tightening tool, and a common operation rod). On the other hand, the direct hot line work means a work performed by an operator wearing an insulation or the like and directly contacting the charging unit.

  FIG. 8 is a front view showing the structure of a conventional underline connector. The underline connector 104 includes a movable connector member 106 and a fixed connector member 108, and each connector member 106, 108 is formed with semicircular arc-shaped recesses 106 a, 108 a for holding the high-voltage line 100, respectively. The two connector members 106 and 108 are biased in the direction in which the high-voltage wire 100 sandwiched between the recesses 106a and 108a is tightened by the action of an elastic body 120 such as a coil spring. Further, the holes through which the bolts 114 are inserted are formed in both the connector members 106 and 108. After the high-voltage wire 100 is sandwiched between the recesses 106a and 108a, the two connector members 106 and 108 are tightened with the bolts 114. The underline connector 104 is securely fixed to the high voltage line 100 (see Patent Document 1).

  When attaching the above-described underline connector 104 to the high-voltage line 100, the holding part 110 provided on the fixed connector member 108 is held by a tool such as an insulating Yatsuko, and the high-voltage line 100 is inserted into the recesses 106 a and 108 a. The entire underline connector 104 is pushed up to the high voltage line 100 while resisting the urging force of the elastic body 120 so as to be fitted. Then, after the high-voltage line 100 is fitted into the recesses 106a and 108a, the bolt 114 is tightened using an insulating ratchet bolt tightening tool or the like. A nut 124 is configured to be screwed onto the bolt 114, and a holding plate 116, a flat washer 118, a spring washer 112, and the like are used as necessary. The underline is held in the underline holding unit 126.

JP 2002-56942 A

  In the conventional underline connector, as described above, the high voltage line is sandwiched in the recess of the underline connector, and then the bolt is tightened to secure the high voltage line and the entire underline connector. . However, the conventional underline connector has the following problems and problems. (1) Due to the structure in which the high-voltage line is sandwiched between the two connector members 106 and 108, the connector is easily detached from the high-voltage line when the connector is tightened. (2) The tightening operation with the bolt 114 is necessary to obtain a sufficient fixing force, but the nut 124 must be rotated by pressing the bolt 114 while gripping the grip portion 110 with an insulating tool or the like. Therefore, it is very complicated to perform these high-place work by indirect hot line work, and the work takes a long time.

  This invention is made | formed in view of the said subject, The objective is to provide the connector for underlining which can perform the attachment operation | work by an indirect hot wire operation | work efficiently in a short time.

In order to achieve the above object, the underline connector according to claim 1,
A pull-down line connector having a high-voltage line holding unit that holds a high-voltage line and obtains an electrical connection state, and a pull-down line holding unit that holds an under-line and obtains an electrical connection state. A hook portion that protrudes from the connector main body portion and can be hooked from above with respect to the high-voltage line; and a bolt-shaped member that can be screwed into the connector main body portion. High pressure wire pressing means that performs a proximity / separation operation with respect to the inside of the portion, and a tip portion serves as a pressing portion that comes into contact with the high voltage wire.

  By adopting such a configuration, after hook parts formed protruding from the connector main body part are hooked on the high voltage line from above and the connector for the underline is temporarily fixed, the bolt-shaped member is attached from the outside of the connector main part. By performing the screwing operation in the above operation, the pressing portion can be brought into contact with the high-voltage line, and can be pressed and fixed. Therefore, in the work of fixing the underline connector to the high-voltage line, the underline connector is difficult to be detached from the high-voltage line at the time of operation, and the installation work by the indirect live line work can be performed easily, efficiently, and safely. It becomes.

The underline connector according to claim 2, wherein the underline connector according to claim 1,
The bolt-shaped member is always in a state of protruding from the connector main body while being attached to the connector main body, and can be screwed / unscrewed from the outside of the connector main body. To do. With this configuration, the attachment of the underline connector to the high voltage line does not require a special tool or the like because the bolt-shaped member is exposed by protruding from the connector main body. For example, a highly versatile shared operation rod Etc. can be used to rotate the bolt-shaped member. Therefore, shortening of working time and cost reduction can be achieved.

The underline connector according to claim 3, wherein the underline connector according to claim 2,
An annular part into which a tool for rotating the bolt-shaped member can be inserted is formed at the projecting side end of the bolt-shaped member. With this configuration, the screw-in operation of the bolt-like member required when attaching the underline connector to the high-voltage line is performed by binding an insulating tool or the like to the annular portion formed at the protruding side end (for example, binding to the common operation rod) It can be easily performed by inserting and rotating a hammer (having a hammer), which facilitates the mounting operation and shortens the working time.

The underline connector according to claim 4, wherein the underline connector according to any one of claims 1 to 3,
The surfaces of the hook portion and the pressing portion that are in contact with the high-voltage line are curved so as to be in contact with the side surface of the high-voltage line. With this configuration, the high-voltage line can be reliably and stably fixed by the hook part and the pressing part, and the connector for the underline attached in this way is good against vibration of the high-voltage line. Holding power is demonstrated.

The underline connector according to claim 5, wherein the underline connector according to any one of claims 1 to 4,
The underline holding portion is provided on an outer surface of the connector main body portion, and a groove portion in which the underline can be loaded from the outside, and the underline loaded in the groove portion is held in the groove portion by a screwing member. And an underline pressing means. With this configuration, the underline can be fixed by screwing the screw-in member of the underline pressing means after the underline is loaded into the groove provided on the outer surface of the connector main body from the outside. It can be easily and easily held in the connector, and the working time can be shortened.

  According to the underline connector of the present invention, after the hook portion is hooked on the high voltage line from above and the underline connector is temporarily fixed, the bolt-like member is screwed in to thereby turn the underline connector into the high voltage line. It can be held and fixed. Therefore, the underline connector is unlikely to be detached from the high-voltage line at the time of operation, and an operation for supporting the underline connector during the operation becomes unnecessary. Thereby, the attachment work by indirect hot wire work can be performed efficiently in a short time, and the safety | security and cost reduction of work can be achieved.

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

(First embodiment)
FIG. 1 shows a side surface portion of the underline connector according to the first embodiment of the present invention. FIG. 2 is a side view showing a state in which the underline connector shown in FIG. 1 is attached to a high voltage line. The underline connector 10 includes a high voltage line holding unit 8 that holds the high voltage line 100 to obtain an electrically connected state, and a draw line holding unit 9 that holds the underline 102 and obtains an electrically connected state.

  The high-voltage line holding part 8 is composed of a hook part 12 and a bolt-shaped member 24 as a high-voltage line holding means. The hook portion 12 is formed by protruding from the connector main body portion 11 and bent in an arc shape. Therefore, it is possible to hook the high voltage line 100 from above. The bolt-shaped member 24 is formed so as to be able to be screwed into the female screw portion 13 formed in the connector main body portion 11, and moves toward and away from the inside of the hook portion 12 by screwing / unscrewing operation. A pressing portion 16 that abuts against the high-voltage line 100 is provided. The pressing portion 16 is formed to be curved so as to contact along the side surface of the high-voltage line 100.

  With this configuration, the hook portion 12 protruding from the connector main body portion 11 is hooked on the high-voltage line 100 from above to temporarily fix the pull-down connector 10, and then the bolt-shaped member 24 is screwed. By operating, the pressing portion 16 can be brought into contact with the high voltage line 100 and pressed and fixed.

  Here, the bolt-shaped member 24 is in a state of always projecting from the connector main body 11, and a ring-shaped tool through which a tool for rotating the bolt-shaped member 24 can be inserted into the projecting side end of the bolt-shaped member 24. A portion 26 is formed. Thus, the screwing operation of the bolt-shaped member 24 required when the underline connector 10 is attached to the high-voltage line 100 does not require a special tool or the like. Is attached, and this is easily performed by inserting and rotating the ring-shaped upper portion 26 formed at the end of the bolt-like member 24, thereby facilitating the attachment work and shortening the work time. .

  Further, the surfaces of the hook portion 11 and the pressing portion 16 that are in contact with the high-voltage line 100 are curved so as to be in contact with the side surfaces of the high-voltage line 100 as described above. 16 enables the high-voltage line 100 to be securely and stably fixed, and the underline connector 10 attached in this way exhibits a stable holding force against vibrations of the high-voltage line 100 and the like. .

  The underline holding part 9 is provided on the outer surface of the connector main body part 11, and a groove part 20 into which the underline 102 can be loaded from the outside, and a bolt 22 as a downline holding means for the underline 102 loaded in the groove part 20. Consists of. That is, the locking wall 19 is formed so as to protrude from the outer surface of the connector main body 11, the pulling line 102 is loaded into the groove 20 inside thereof, and the bolt 22 is tightened to hold and fix the pulling line 102. With this configuration, the underline 102 can be easily and easily held and fixed to the underline connector 10.

  Here, after the underline connector 10 is attached to the high voltage line 100, a nut 28 as a loosening prevention means is screwed into the bolt member 24 so that the bolt-shaped member 24 does not loosen. The bolt-shaped member 24 becomes non-rotatable by tightening the nut 28 with an insulating tool. A spring washer 28a is used as necessary.

  The procedure for attaching the underline connector 10 having the above configuration to the high voltage line 100 is as follows. First, the high voltage line 100 is inserted into the hook portion 12 from the opening 30 and the entire underline connector 10 is hooked on the high voltage line 100. Next, an operating rod (not shown) is inserted through the annular portion 26 of the bolt-shaped member 24 and rotated, whereby the pressing portion 16 is moved upward to abut against the high-voltage line 100 and pressed and fixed. Thereby, the underline connector 10 is firmly and stably fixed to the high voltage line 100. Thereafter, the nut 28 as a loosening prevention means is tightened with an insulating tool so that the bolt-shaped member 24 does not loosen due to vibration of the high-voltage line 100 or the like. Finally, the underline 102 is loaded into the groove 20, and the bolt 22 as the underline holding means is rotated using an insulating tool in the same manner to fix the underline 102.

  According to the underline connector of the first embodiment, after the hook portion protruding from the connector main body portion is hooked on the high voltage line from above to temporarily fix the underline connector, the bolt-shaped member is connected to the connector. By rotating from the outside of the main body portion, the pressing portion can be brought into contact with the high-voltage line to be pressed and fixed. Therefore, in the operation of fixing the underline connector to the high voltage line, the underline connector is unlikely to be detached from the high voltage line at the time of operation, and an operation for supporting the underline connector during the operation becomes unnecessary. Since the installation work of the underline connector is an operation from the ground or on a crane truck, it is unnecessary to support or hold the high voltage line or the underline connector as described above. It leads to simplification. As a result, the attachment work by the indirect hot wire work can be performed easily, efficiently, and safely in a short time.

(Second embodiment)
The underline connector according to the second embodiment differs from the underline connector according to the first embodiment only in the configuration of the loosening prevention means of the bolt-shaped member 24. Only different points will be described below.

  FIG. 3 is a side view of the underline connector according to the second embodiment of the present invention. FIG. 4 is a side view showing a state in which the underline connector shown in FIG. 3 is attached to a high voltage line. As described above, the difference from the first embodiment resides in the bolt 29 which is a loosening prevention means. That is, by rotating the bolt-shaped member 24, the pressing portion 16 is moved upward to come into contact with the high-voltage line 100, pressed and fixed, and then in a direction orthogonal to the axial direction of the bolt-shaped member 24. The bolt-shaped member 24 is prevented from rotating by tightening a bolt 29 that is screwed into a hole provided from the outer surface of the portion 11. The advantage is that it can be made lighter than the underline connector in the first embodiment. In addition, when rotating the volt | bolt 29, it carries out similarly to the above using an insulating tool.

  Therefore, the underline connector according to the second embodiment also exhibits the same effect as the underline connector according to the first embodiment. That is, it is possible to perform attachment work by indirect hot-line work easily, efficiently, and safely in a short time. In addition, the underline connector has a good holding force against vibration of the high-voltage line and the like because it has a means for preventing the rotation of the bolt-shaped member.

(Third embodiment)
FIG. 5 shows a side surface portion of the underline connector according to the third embodiment of the present invention. FIG. 6 is a side view showing a state in which the underline connector shown in FIG. 5 is attached to a high voltage line. The underline connector 32 includes a high voltage line holding unit 28 that holds the high voltage line 100 to obtain an electrically connected state, and a draw line holding unit 29 that holds the underline 102 and obtains an electrically connected state.

  The difference from the underline connector 10 according to the first embodiment is the shape of the connector main body 51. In the present embodiment, the connector main body 51 is configured using a flat plate member, and the hook portion 12 is formed by curving the upper end portion of the flat plate member in an arc shape. Therefore, it is possible to hook the high voltage line 100 from above. A female screw portion 46 is provided at the lower portion of the connector main body 51, and a bolt-like member 42 described later is configured to be screwed into a female screw 33 formed on the female screw portion 46.

  The high-voltage line holding part 28 is composed of the hook part 34 and a bolt-like member 42 as high-pressure line holding means. The bolt-shaped member 42 is formed by a bolt-shaped member 42 that can be screwed into the above-described female screw portion 46 provided in the lower portion of the connector main body 51, and with respect to the inside of the hook portion 34 by screwing / unscrewing operation. It has a pressing part 36 that performs a proximity / separation operation and is brought into contact with the high-voltage line 100 at the tip part. The pressing portion 36 is formed to be curved so as to contact along the side surface of the high-voltage line 100.

  Here, the above-described bolt-shaped member 42 is in a state of always projecting from the female thread portion 46 of the connector main body portion 51, and the projecting side end portion of the bolt-shaped member 42 is similar to the first embodiment. An annular portion 44 through which a tool for rotating the bolt-shaped member 42 can be inserted is formed.

  Further, since the surfaces of the hook portion 34 and the pressing portion 36 that are in contact with the high-voltage line 100 are curved so as to be in contact with the side surface of the high-voltage line 100 as in the first embodiment, The hook portion 34 and the pressing portion 36 can reliably and stably fix the high-voltage line 100, and the underline connector 32 attached in this way is stable against vibration of the high-voltage line 100. Exerts its holding power.

  Similar to the first embodiment, the underline holding portion 29 is provided on the outer surface of the connector main body 51, and a groove portion 48 in which the underline 102 can be loaded from the outside, and a underline loaded in the groove portion 48. 102 is constituted by a bolt 50 which is a drawing line pressing means. That is, the locking wall 39 is formed so as to protrude from the outer surface of the connector main body 11, the pulling line 102 is loaded into the groove 48 inside thereof, and the bolt 50 is tightened to hold and fix the pulling line 102. With this configuration, the underline 102 can be easily and easily held and fixed to the underline connector 32.

  Further, after the underline connector 32 is attached to the high voltage line 100, a bolt 54 is provided on the female thread portion 46 so that the bolt-like member 42 does not loosen, and this bolt 54 is tightened using an insulating tool. As a result, the bolt-shaped member 42 cannot rotate.

  The procedure for attaching the underline connector 32 having the above configuration to the high voltage line 100 is as follows. First, the high voltage line 100 is inserted into the hook portion 34 from the opening 60, and the entire underline connector 32 is hooked on the high voltage line 100. Next, an operating rod (not shown) is inserted into the annular portion 44 of the bolt-shaped member 42 and rotated to move the pressing portion 36 upward so as to contact the high-voltage line 100 and press and fix. Thereby, the underline connector 32 is firmly and stably fixed to the high voltage line 100. Thereafter, the bolt 54 as a loosening prevention means is tightened with an insulating tool so that the bolt-shaped member 42 does not loosen due to vibration of the high-voltage line 100 or the like. Finally, the underline 102 is loaded into the groove 48, and the bolt 50, which is the underline pressing means, is similarly rotated using an insulating tool to fix the underline 102.

  Therefore, the underline connector according to the third embodiment also exhibits the same effect as the underline connector according to the first embodiment. That is, it is possible to perform attachment work by indirect hot-line work easily, efficiently, and safely in a short time. Further, the underline connector has a good holding force against vibrations of the high voltage line. It should be noted that the underline connector of the present embodiment is composed of a flat plate member as compared with the underline connector according to the first embodiment. -Miniaturization can be achieved.

(Fourth embodiment)
The underline connector according to the fourth embodiment differs from the underline connector according to the third embodiment only in the configuration of the loosening prevention means of the bolt-shaped member 24. Only different points will be described below.

  FIGS. 7A and 7B are a perspective view (FIG. 7A) and a side view (FIG. 7B) of the underline connector according to the fourth embodiment of the present invention. FIGS. 8A and 8B are a perspective view (FIG. 8A) and a side view (FIG. 8B) showing how the underline connector shown in FIG. As described above, the difference from the third embodiment resides in the configuration using the spacer 55 and the leaf spring portion 58 as the spacer pressing means as the loosening prevention means.

  The spacer 55 is formed in a substantially rectangular parallelepiped, for example, by metal, plastic resin, etc., and is fitted with a bolt-shaped member in the major axis direction of the substantially rectangular parallelepiped spacer 55 so that it can be fitted along the axis of the bolt-shaped member 42. A joint portion 55c is formed. Further, Yachko gripping portions 55a and 55b are formed on the side surfaces so that the tool can be gripped by an insulating tool such as a Yatsuko. The bottom surface of the spacer 55 is formed in a hairline shape so that a part of the urging force from the leaf spring portion 58 serving as a spacer pressing means, which will be described later, is also distributed in the direction in which the spacer 55 is pushed up.

  The leaf spring portion 58 is located between the pressing portion 36 and the female screw portion 46, and is formed so as to protrude from the connector main body portion 51 with a hole portion 58 a so that the bolt-shaped member 42 is inserted. The leaf spring portion 58 is attached upward, and when the spacer 55 is inserted between the leaf spring portion 58 and the pressing portion 36, the spacer 55 is urged both upward and toward the connector main body 51 side. It is configured as follows. That is, in order to insert the spacer 55 between the pressing portion 36 and the leaf spring portion 58, the leaf spring portion 58 must be pushed downward against the urging force.

  Further, in order to prevent the inserted spacer 55 from being easily removed, it is a surface (bottom surface) opposite to the surface that contacts the high-voltage line 100 of the pressing portion 36, and is parallel to the high-voltage line 100 and away from the connector body 51. A stepped spacer retaining portion 36a is formed at the end portion.

  Therefore, after the underline connector 32 is hooked on the high-voltage line 100 and the bolt-shaped member 42 is rotated, the pressing portion 36 is moved upward to abut against the high-voltage line 100 to be pressed and fixed, and then the leaf spring portion. 58 is pushed downward by an insulating tool against the biasing force, the spacer 55 is fitted between the pressing portion 36 and the leaf spring portion 58 along the axis of the bolt-shaped member 42, and the leaf spring portion 58. Since the spacer 55 is pressed upward by the urging force of the leaf spring portion 58, the bolt-shaped member 42 is prevented from being loosened.

  In addition, it is the structure which does not use said spacer 55, Comprising: The structure which the leaf | plate spring part 58 contacts the bolt-shaped member 42 directly by urging | biasing force may be sufficient. That is, the hole 58a through which the bolt-like member 42 of the leaf spring portion 58 is inserted is made small so that the leaf spring portion 58 and the bolt-like member 42 are in contact with each other in the natural state of the leaf spring portion 58. When the bolt-shaped member 42 is rotated, the leaf spring portion 58 is pushed downward against an urging force with an insulating tool or the like, and after rotating the bolt-shaped member 42 as much as necessary, the leaf spring portion When 58 is opened, the plate spring portion 58 may come into contact with the bolt-shaped member 42 to prevent its rotation. In the present embodiment, it is not necessary to rotate the bolt 54 for preventing the rotation of the bolt-shaped member 42 as compared with the underline connector in the third embodiment, so that the underline connector can be attached more easily. Become.

  Therefore, the underline connector according to the fourth embodiment also exhibits the same effect as the underline connector according to the first embodiment. That is, it is possible to perform attachment work by indirect hot-line work easily, efficiently, and safely in a short time. In addition, the underline connector has a good holding force against vibration of the high-voltage line and the like because rotation of the bolt-shaped member is prevented by the spacer and the leaf spring portion.

  The present invention is not limited to the first to fourth embodiments described above, and various modifications can be made without departing from the spirit of the present invention. For example, the attachment of the underline to the underline connector is performed by loading the underline in the groove provided on the outer surface of the connector body and tightening the bolt as the underline holding means. It may be configured.

It is a side view of the connector for underlining which concerns on 1st embodiment of this invention. It is a side view which shows a mode that the connector for underlining shown in FIG. 1 was attached to the high voltage | pressure line. It is a side view of the connector for underlining which concerns on 2nd embodiment of this invention. It is a side view which shows a mode that the connector for underline shown in FIG. 3 was attached to the high voltage | pressure line. It is the perspective view (the figure (a) and the side view (the figure (b))) of the connector for underlining which concerns on 3rd embodiment of this invention. It is a perspective view which shows a mode that the connector for underlining shown in FIG. 5 was attached to the high voltage | pressure line. It is a perspective view (the figure (a) and the side view (the figure (b))) of the connector for underlining which concerns on 4th embodiment of this invention. It is the perspective view (same figure (a)) and side view (same figure (b)) which show a mode that the connector for underline shown in FIG. 7 was attached to the high voltage | pressure line. It is a figure explaining a mode that the underline is pulled down from the high voltage line from the underline connector. It is a front view of the conventional connector for underline.

Explanation of symbols

8, 28 High voltage wire holding portion 9, 29 Underline holding portion 10, 32 Underline connector 11, 51 Connector body portion 12, 34 Hook portion 16, 36 Pressing portion 20, 48 Groove portion 22, 50 Bolt (Drawing wire holding means )
24, 42 Bolt-shaped member (high-pressure wire holding means)
26, 44 Annular part 55 Spacer 58 Leaf spring part (spacer pressing means)
DESCRIPTION OF SYMBOLS 100 High voltage line 102 Underline 104 Underline connector 106 Movable connector member 106a, 108a Recessed part 108 Fixed connector member 114 Bolt 110 Grip part 120 Elastic body

Claims (5)

In the connector for the underline having the high-voltage line holding unit that holds the high-voltage line and obtains the electrical connection state, and the underline holding unit that holds the underline and obtains the electrical connection state,
The high-voltage wire holding part is
A hook portion that protrudes from the connector main body and is hookable from above with respect to the high-voltage line;
It is formed of a bolt-like member that can be screwed into the connector main body, and moves toward and away from the inside of the hook portion by screwing / unscrewing operation, and the tip is brought into contact with the high-voltage line. High-pressure wire holding means that serves as a pressing portion;
An underline connector characterized by comprising: The bolt-shaped member is
2. The device according to claim 1, wherein the connector main body portion is always in a state of protruding from the connector main body portion and can be screwed / unscrewed from the outside of the connector main body portion. Underline connector.   The underline connector according to claim 2, wherein an annular portion through which a tool for rotating the bolt-shaped member can be inserted is formed at the projecting side end of the bolt-shaped member.   The surface of the hook portion and the pressing portion that abuts on the high-voltage line is formed to be curved so as to contact along a side surface of the high-voltage line. The underline connector according to item. The underline holding part is
A groove portion provided on an outer surface of the connector main body portion and capable of loading the underline from the outside;
A drawing line pressing means for holding the drawing line loaded in the groove part in the groove part by a screwing member;
The underline connector according to any one of claims 1 to 4, wherein the underline connector is provided.

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