JP4959416B2 - Underline connector - Google Patents

Description

  The present invention relates to an underline connector that is installed at a branch portion between a high voltage line installed between utility poles and a draw line branched from the high voltage line.

  Usually, the underline drawn into the transformer is branched from the high-voltage line installed between the utility poles. For this part, the underline is formed so that the high-voltage line and the underline can be locked together. Connector is installed. It is recommended that the work for installing the underline connector is performed by indirect hot wire work from the viewpoint of safety and the like. Indirect hot-line work is work that is performed without using an insulating tool (such as Yatco, a bolt tightening tool, a shared operation rod) without the worker directly touching the live part. The work that is performed by directly touching the charging part while wearing a body etc. is called direct hot line work).

As described above, the underline connector is desired to have a structure that can be installed by indirect hot-wire work, and there are the following conventional techniques for that purpose. As shown in FIG. 11, the underline connector according to this prior art is configured to have a movable connector member 200 and a fixed connector member 201, and each connector member 200, 201 holds a high-voltage line 203. A semicircular arc-shaped recess 204 is formed, and both connector members 200 and 201 are urged in the direction of tightening the high-voltage line 203 sandwiched between the recesses 204 by the action of an elastic body 205 such as a coil spring. Both connector members 200 and 201 have holes through which the bolts 206 are inserted. After the high-voltage wire 203 is sandwiched between the recesses 204, the connector members 200 and 201 are tightened with the bolts 206 to pull them. The underline connector is securely fixed to the high voltage line 203 (see Patent Document 1). When the underline connector is attached to the high voltage line 203, the operated handle 202 provided on the fixed connector member 202 is held by a tool such as an insulating Yatco, and the high voltage line 203 is fitted into the recess 204. In this manner, the entire underline connector is pressed against the high-voltage line 203 while resisting the urging force of the elastic body 205. Then, after the high voltage line 203 is fitted in the recess 204, the bolt 206 is tightened using an insulating ratchet bolt tightening tool or the like.
JP 2002-56942 A

  In the conventional structure, as described above, the high-voltage line 203 is first inserted into the recess 204 of the underline connector, and then the bolt 206 is tightened to secure the high-voltage line 203 and the entire underline connector. Yes. In this conventional structure, the tightening operation using the bolt 206 is necessary to obtain a sufficient fixing force, but the bolt tightening operation using the bolt tightening tool is difficult. Thus, the conventional structure has room for improvement in terms of workability and the like by indirect hot-line work.

  Then, an object of this invention is to improve the workability | operativity by indirect hot-line work.

The present invention for solving the above problems is configured to include at least a fixed connector member, a movable connector member, an elastic member, a high-voltage wire holding portion, a draw-down wire holding portion, and a high-voltage wire cam. The underline connector , wherein the fixed connector member and the movable connector member are a fitting between a contact convex portion formed in the fixed connector member and a contact concave portion formed in the movable connector member, and the elasticity The movable connector member is connected to the fixed connector member so as to be swingable in a V shape by being fixed by the member, and the high voltage line holding portion holds the high voltage line, and the fixed connector member The recessed portion formed in the movable connector member and the recessed portion formed in the movable connector member are configured by a substantially circular space defined, and the underline holding portion holds the underline. Therefore, it is constituted by a slit formed in the side surface portion of the movable connector member, and the high-voltage line cam is pivotally supported by a rotating shaft at the distal end portion of the fixed connector member and the movable connector member, In addition to having a tip, the tip can be rotated only in a direction close to each other and synchronously, and the tip can hold the high-voltage line in the high-voltage wire holding part from above. Further, the underline connector is characterized in that the state in which the cam for high voltage line can rotate in only one direction can be released by pressing a release button. .

  In this configuration, in order to fit the high-voltage line into the space of the high-voltage line holding part, when the connector for the underline is pushed forward with respect to the high-voltage line using an instrument such as an insulating jacket, a pair of connector members is While opening against the elastic member, the cam rotates and the high voltage line enters the space of the high voltage line holding part.

At this time, since the cam does not rotate backward, the movement of the high-voltage line in the direction away from the space is restricted.

Thereby, even if it does not tighten with a volt | bolt like the past, the underline connector can be reliably and simply fixed to a high voltage line. Thereby, the attachment property by an indirect hot wire operation | work is improved significantly compared with the conventional one.

Further, when it is desired to remove the underline connector from the high voltage line, the reverse rotation of the cam may be permitted by operating the release means.

The present invention further includes a high-voltage line holding part that holds the high-voltage line and a draw-line holding part that holds the under-line, and the high-voltage line holding part is formed to face the pair of connector members. The high-voltage line is held by fitting the high-voltage line into a space defined by the concave portion and energizing both connector members in a direction to tighten the high-voltage line by the action of an elastic member, In the space of the high-voltage line holding part, it is configured to have at least a pair of wedge-shaped members provided so as to be slidable so as to approach each other in a direction perpendicular to the high-voltage line and slide toward the inlet side of the space. The underline connector is characterized in that (Claim 2).

In this configuration, after the high-voltage line is fitted in the space of the high-voltage line holding portion, the entire underline connector is moved in parallel along the high-voltage line, so that the wedge-shaped member is brought into contact with the high-voltage line and firmly Can be held.

The present invention further includes a high-voltage line holding part that holds the high-voltage line and a draw-line holding part that holds the under-line, and the high-voltage line holding part is formed to face the pair of connector members. The high-voltage line is inserted into a space defined by the concave portion, and the high-voltage line is held by urging both connector members in a predetermined direction in the direction in which the high-voltage line is tightened by the action of an elastic member. In the space of the high-voltage line holding part, it is provided so as to be slidable along a plane parallel to the high-voltage line and closer to each other when sliding in one direction and away from each other when sliding in the opposite direction. The underline connector is characterized by having at least a pair of wedge-shaped members formed (claim 3).

In this configuration, after temporarily fixing the underline connector so that the high-voltage line holding portion formed in a hook shape is hooked on the high-voltage line, the bolt-shaped member is rotated and the high-voltage line is pressed by the high-pressure line holding means. Hold firmly.

In this way, the fixing work by the high-voltage wire holding means is performed in a state in which the connector for the underline is hooked on the high-voltage wire, so that even if a downward pressure is applied, it does not come off, and it is easier to install than the conventional one. improves.

  As described above, according to the present invention, the cam or the wedge-shaped member that allows rotation in only one direction can improve the attachment to the high-voltage line and the effect of preventing the drop-off. Strong fixation is possible.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In addition, the description is abbreviate | omitted about the place which show | plays the same or the same effect in different Example.

  FIGS. 1A and 1B show the structure of an underline connector (hereinafter abbreviated as a connector) 1 according to this embodiment. The connector 1 includes a fixed connector member 2, a movable connector member 3, an elastic member 4, a high-voltage wire holding portion 5, a draw-down wire holding portion 6, a gripping portion 7, a high-voltage wire cam 8, and a draw-down cam 10. It is configured.

  The fixed connector member 2 and the movable connector member 3 are movable by fitting the contact convex portion 15 formed in the fixed connector member 2 with the contact concave portion 16 formed in the movable connector member 3 and fixing by the elastic member 4. The connector member 3 is connected to the fixed connector member 2 so as to be swingable in a V shape. The elastic member 4 is a wire-like spring, and its ends are fixed to the fixed connector member 2 and the movable connector member 3 as shown in FIGS. It is inserted through the bored hole 18.

  The high-voltage wire holding unit 5 is configured by a substantially circular space defined by the concavity 20a formed in the fixed connector member 2 and the concavity 20b formed in the movable connector member 3 facing each other. The circular diameter of the high-voltage wire holding portion 5 is designed according to the diameter of various high-voltage wires, and for example, φ17 mm, 13.6 mm, 9.7 mm, 7.2 mm, 6.3 mm, etc. are preferable. As shown in FIGS. 1A and 1B, the underline holding portion 6 is configured by a slit formed in the side surface portion of the movable connector member 3.

  The high-voltage line cam 8 is pivotally supported by the rotating shaft 23 at the distal ends of the fixed connector member 2 and the movable connector member 3. All high-voltage line cams 8 are normally rotatable only in the direction of arrow A in FIG. 1A using a well-known ratchet mechanism or the like (not shown). The state in which the high-voltage line cam 8 can rotate in only one direction can be released by pressing a release button 9.

  A slit-like underline holding part 6 for holding the underline is formed on the side surface of the movable connector member 3. An underline cam 10 is provided at the entrance of the underline holding part 6. Is provided. The underline cam 10 can be rotated only in the direction of the arrow B in the figure by the same mechanism as the high voltage line cam 8, and the release button 11 can be pressed to rotate in only one direction. Can be released by.

  In FIG. 2, the procedure at the time of attaching the connector 1 of the said structure to the high voltage | pressure line 27 is shown. First, as shown in FIG. 2A, the high-voltage line cam 8 on the connector 1 is brought into contact with the high-voltage line 27 from below, and the connector 1 is pushed toward the high-voltage line 27 as indicated by an arrow C in the figure. The operation of the connector 1 is performed by gripping the grip portion 7 of the fixed connector member 2 with an instrument such as an insulating jacket. Then, as shown in FIG. 2B, the high-voltage line cam 8 is rotated inward as indicated by an arrow D in the figure by the frictional force with the high-voltage line 27, and the movable connector member 3 is attached to the elastic member 4. The fixed connector member 2 is displaced so as to be V-shaped against the force. Then, by further advancing the connector 1 to the high voltage line 27 side, the high voltage line 27 fits in the space of the high voltage line holding portion 5 of the connector 1 as shown in FIG. 8 has a shape that presses the high-voltage line 27 in the space from above. At this time, the high-voltage line cam 8 rotates only in one direction (the direction of the arrow D) by the action of a ratchet mechanism or the like, so that the high-voltage line 27 housed in the high-voltage line holding portion 5 is held down and locked. . Further, when the release button 9 is pressed, the high-voltage line cam 8 can rotate in the direction opposite to the arrow D. Therefore, when the connector 1 is removed from the high-voltage line 27, the release button 9 is pressed and the connector 1 is moved downward ( By pulling it down in the direction opposite to the arrow C, the connector 1 can be removed from the high voltage line 27. When the underline 28 is fitted into the underline holding part 6, the underline 28 is brought into the underline holding part 6 by the underline cam 10 having the same effect as the high-voltage line cam 8. The locked state is released by the release button 11.

  As described above, according to the present configuration, the connector 1 can be reliably and simply fixed to the high-voltage line 27 without performing tightening with bolts as in the prior art. Thereby, the attachment property by an indirect hot wire operation | work is improved significantly compared with the conventional one.

  3A and 3B show the structure of the underline connector (hereinafter abbreviated as a connector) 31 according to this embodiment. The connector 31 includes a fixed connector member 32, a movable connector member 33, an elastic member 34, a high-voltage line holding part 35, a drawn line holding part 36, a gripping part 37, and a wedge-shaped member 51.

  The fixed connector member 32 and the movable connector member 33 are movable by fitting the contact convex portion 45 formed in the fixed connector member 32 and the contact concave portion 46 formed in the movable connector member 33 and fixing by the elastic member 34. The connector member 33 is connected to the fixed connector member 32 so as to be swingable in a V shape.

  The high-voltage wire holding portion 35 is configured by a substantially elliptical space defined by the concavity 39a formed in the fixed connector member 32 and the concavity 39b formed in the movable connector member 33 facing each other. On the side surface of the movable connector member 33, there are provided a slit-like underline holding part 36 for holding the underline, and a downline cam 40 for improving the holding power of the underline by the underline holding part 36. The structure of the underline holding part 36 and the underline cam 40 is the same as that of the underline holding part 6 and the underline cam 10 according to the first embodiment.

  The connector 31 according to the present embodiment is characterized by including a wedge-shaped member 50 as shown in FIGS. The wedge-shaped member 50 is slidably provided along an inclined portion 51 provided inside the fixed connector member 32 and the movable connector member 33. The wedge-shaped member 50 is slid inward and slid downward. It is displaced outward.

  FIG. 4 shows a procedure for attaching the connector 31 having the above configuration to the high voltage line 27. First, as shown in FIG. 4A, the entrance portion of the high-voltage line holding portion 35 above the connector 31 is brought into contact with the high-voltage line 27 from below, and the connector 1 is directed toward the high-voltage line 27 as shown by an arrow E in the figure. Push forward. The operation of the connector 31 is performed by gripping the grip portion 37 of the fixed connector member 32 with an instrument such as an insulating jacket. Then, as shown in FIG. 4B, the movable connector member 33 is displaced against the urging force of the elastic member 34, and the high voltage line 27 is fitted into the high voltage line holding portion 35. Then, as shown in FIG. 4 (c), the connector 31 is slightly pulled down in the direction of arrow F (or left to its own weight), so that the wedge-shaped member 50 contacts the high-voltage line 27 along the inclined portion 51. The high-voltage line 27 is held by moving upward and inward.

  Further, when removing the connector 1 from the high-voltage line 27, the connector 31 is pushed up in the direction of arrow G in the figure as shown in FIG. 5B from the fixed state shown in FIG. The wedge-shaped member 50 is displaced downward and outward by its own weight, so that the contact state between the wedge-shaped member 50 and the high-voltage line 27 can be released. Thereafter, as shown in FIG. By pulling down the connector 31 in the direction, the connector 31 can be removed from the high voltage line 27.

  As described above, also with this configuration, the connector 31 can be reliably and easily fixed to the high-voltage wire 27, and the mounting performance by the indirect hot-wire operation can be significantly improved from the conventional one.

  In FIG. 6, the structure of the underline connector (hereinafter abbreviated as a connector) 61 according to the present embodiment is shown. FIG. 6B is a top view of FIG. 6A, and FIG. 6C is a perspective view of a wedge-shaped member 71 described later. The connector 61 includes a fixed connector member 62, a movable connector member 63, an elastic member 64, a high-voltage line holding part 65, a drawn line holding part 66, a grip part 67, and a wedge-shaped member 71.

  The fixed connector member 62 and the movable connector member 63 are movable by fitting the contact convex portion 75 formed in the fixed connector member 62 and the contact concave portion 76 formed in the movable connector member 63 and fixing by the elastic member 74. The connector member 63 is connected to the fixed connector member 62 so as to be swingable in a V shape.

  The high-voltage wire holding portion 65 is configured by a substantially circular space defined by the concavity 69 a formed in the fixed connector member 62 and the concavity 69 b formed in the movable connector member 63 facing each other. On the side surface of the movable connector member 63, there are provided a slit-like underline holding part 66 for holding the underline and a downline cam 70 for improving the holding power of the underline by the underline holding part 66. The structure of the underline holding part 66 and the underline cam 70 is the same as that of the underline holding part 6 and the underline cam 10 according to the first embodiment.

  The connector 61 according to this embodiment is characterized by including a wedge-shaped member 71 as shown in FIGS. 6B and 6C. The wedge-shaped member 71 is slidably provided along an inclined portion 72 provided in the horizontal direction (along a plane parallel to the high-voltage line) inside the fixed connector member 62 and the movable connector member 63. It is displaced inward along with a slide in one direction along the high-voltage line, and outward with a slide in the opposite direction. As shown in FIG. 6C, the wedge-shaped member 71 has a semi-cylindrical high-voltage line holding recess 73 formed on the flat surface side of the semi-cylindrical, and is formed in each of the two wedge-shaped members 71 facing each other. The high-voltage line holding concave portion 73 defines the high-voltage line holding portion 65.

  FIG. 7 shows a procedure for attaching the connector 61 having the above configuration to the high voltage line 27. First, as shown in FIG. 7A, the high-voltage line 27 is fitted in the high-voltage line holding portion 65, and then the connector 61 is moved in the direction of arrow J as shown in FIG. 71 holds the high-voltage line 27.

  As described above, also with this configuration, the connector 61 can be reliably and easily fixed to the high-voltage wire 27 without being tightened with bolts.

  The underline connector (hereinafter abbreviated as “connector”) 81 according to the present embodiment shown in FIG. 8 includes a bending portion 84, a high-voltage line holding portion 85, a high-voltage line holding means 86, an elevating means 87, a downline holding portion 88, It has a drawing line pressing means 89 and a grip 90.

  The curved portion 84 is a hook-shaped portion at the upper end portion of the connector 81 main body, and a substantially elliptical high-voltage line holding portion 85 is defined inside the curved portion 84. The high-voltage wire holding means 86 is made of a dish-like member, and is arranged in the high-voltage wire holding portion 85 and is displaced in the high-voltage wire holding portion 85 by the lifting / lowering means 87. The lifting / lowering means 87 includes a member 95 having a bolt shape at one end and a helical gear shape at the other end, and a member having a helical gear shape at one end and the high-pressure wire pressing means 86 fixed at the other end and a thread formed at the center. 96, the member 96 is rotated through the helical gear by rotating the member 95 using an insulating bolt fastening tool, and the high-pressure wire pressing means 86 is moved up and down in accordance with the rotation of the member 96. It is a mechanism.

  When the connector 81 having the above configuration is fixed to the high voltage line 27, as shown in FIG. 8A, first, the high voltage line 27 is inserted into the high voltage line holding part 85 from the opening 98 as shown by an arrow K, The whole 81 is hung on the high voltage line 27. Next, as shown in FIG. 8 (b), the bolt-shaped member 95 of the lifting / lowering means 87 is rotated, and the tray-shaped high-pressure line pressing means 86 is advanced upward to contact the high-pressure line 27. Thereby, the connector 81 is firmly fixed to the high voltage line 27. Thereafter, the underline 28 is fitted into the underline holding part 88 and the underline fixing means 89 made of a bolt-shaped member is rotated to fix the underline 28.

  According to this structure, the fixing work to the high voltage line 27 by the high voltage line pressing means 86 can be performed after the connector 81 is hooked on the high voltage line 27 by the high voltage line holding portion 85, so that compared with the conventional one, The mountability is remarkably improved.

  The underline connector (hereinafter abbreviated as “connector”) 101 according to the present embodiment shown in FIG. 9 includes a bending portion 104, a high voltage wire holding portion 105, a high voltage wire holding means 106, an elevating means 107, a draw wire holding portion 108, The underline pressing means 109 is provided.

  The bending portion 104 is a hook-shaped portion at the upper end portion of the connector 101 main body, and a substantially elliptical high-voltage line holding portion 105 is defined inside the bending portion 104. The high-voltage wire holding means 106 is made of a dish-shaped member, and is arranged in the high-voltage wire holding part 105 and is displaced up and down in the high-voltage wire holding part 105 by the lifting means 107. The elevating means 107 includes a thread recess 110 and a thread block body (corresponding to a rotating body in claim 5) 111, and the thread recess 110 is formed inside the connector 101 body. It is a cylindrical hollow part, a lower end part is opened, and the thread 113 is formed in the inner wall surface. The thread block body 111 is a columnar member having a thread 115 formed on the outer wall surface, and a fitting portion 112 into which the tip end portion 118 of the common operation rod 117 can be fitted is formed. One end of a rod-shaped member 114 is fixed to the upper surface portion of the thread block body 111, and the high-pressure wire pressing means 106 is fixed to the other end of the rod-shaped member 114. Since the thread block body 111 is screwed into the thread recess 110, as shown in FIG. 10, the tip end portion 118 of the common operation rod 117 is fitted into the fitting portion 112, and the common operation rod 117 is attached. By rotating, the thread block body 111 can be slid up and down in the thread recess 110, and the high-pressure wire pressing means 106 can be moved up and down in accordance with the slide of the thread block body 111.

  When fixing the connector 101 having the above configuration to the high voltage line 27, first, the high voltage line 27 is first inserted into the high voltage line holding unit 105 from the opening 119, and the entire connector 101 is connected to the high voltage line 27, as shown in FIG. Try to hang it. Next, the common operating rod 117 is inserted into the lifting / lowering means 107 and rotated as described above, so that the tray-shaped high-pressure line pressing means 106 is moved upward and brought into contact with the high-pressure line 27. Thereby, the connector 101 is firmly fixed to the high voltage line 27. Thereafter, the underline 28 is fitted into the underline holding part 108, and the underline fixing means 109 is rotated using an insulating device to fix the underline 28.

  Even with such a configuration, the fixing work can be performed in a state where the connector 101 is hooked on the high-voltage wire 27 as in the fourth embodiment. Further, in this embodiment, since the common operation rod 117 having high versatility can be used for the operation of the high-voltage wire pressing means 106, there is an advantage such as reduction of equipment due to the common use of tools.

(A) is a front view which shows the structure of the connector for underlining based on Example 1 of this invention, (b) is a right view of the connector for underlining. (A), (b), (c) shows the procedure at the time of fixing the underline connector which concerns on Example 1 to a high voltage | pressure wire. (A) is a front view which shows the structure of the connector for underlining based on Example 2 of this invention, (b) is the elements on larger scale which show the structure of a wedge-shaped member. (A), (b), (c) is a figure which shows the procedure at the time of fixing the underline connector which concerns on Example 2 to a high voltage | pressure wire. (A), (b), (c) is a figure which shows the procedure at the time of removing the connector for underlining which concerns on Example 2 from a high voltage | pressure line. (A) is a front view which shows the structure of the connector for underlining based on Example 3 of this invention, (b) is a top view of the connector for underlining, (c) is the underlining FIG. 6 is a perspective view of a wedge-shaped member in the connector. (A), (b) is a figure which shows the procedure at the time of fixing the connector for underlining which concerns on Example 3 to a high voltage | pressure line. (A), (b) is a figure which shows the structure at the time of fixing the structure of the connector for underlining which concerns on Example 4, and this to a high voltage | pressure wire. It is a figure which shows the structure of the connector for underlining based on Example 5 of this invention. It is a figure which shows the procedure at the time of fixing the connector for underline which concerns on Example 5 to a high voltage | pressure line. It is a figure which shows the structure of the conventional connector for underline.

Explanation of symbols

1, 31, 61, 81, 101 Underline connector 2, 32, 62 Fixed connector member 3, 33, 63 Movable connector member 4, 34, 64 Elastic member 5, 35, 65, 85, 105 High voltage wire holding portion 6 , 36, 66, 88, 108 Underline holding part 7, 37, 67, 87, 107 Holding part 8 High-voltage line cam 9 Release button 10, 40, 70 Underline cam 11 Release button 27 High-voltage line 28 Underline 50 , 71 Wedge-shaped member 51, 72 Inclined portion 86, 106 High-pressure wire pressing means 87, 107 Lifting means

Claims (3)

A drawdown connector configured to include at least a fixed connector member, a movable connector member, an elastic member, a high voltage wire holding portion, a draw wire holding portion, and a high voltage wire cam ,
The fixed connector member and the movable connector member are formed by fitting the contact convex portion formed in the fixed connector member and the contact concave portion formed in the movable connector member, and fixing by the elastic member. The movable connector member is connected to a member so as to be swingable in a V shape,
The high-voltage line holding part holds a high-voltage line, and is formed by a substantially circular space defined by a concavity formed in the fixed connector member and a concavity formed in the movable connector member. Configured,
The underline holding part holds the underline, and is constituted by a slit formed in a side part of the movable connector member.
The high-voltage line cam is pivotally supported by a rotating shaft at the distal end portions of the fixed connector member and the movable connector member, and has a distal end portion and only in a direction in which the distal end portions are close to each other. It is possible to rotate synchronously, the high-pressure line in the high-voltage line holding part can be pressed from above with the tip part, and the high-voltage line cam can be rotated only in one direction. A connector for an underline , which can be released by pressing a release button . A high-voltage wire holding portion that holds the high-voltage wire, and a draw-line holding portion that holds the underline,
The high-voltage wire holding portion is configured to fit the high-voltage wire into a space defined by a recess formed so as to face the pair of connector members, and to tighten the high-voltage wire by the action of an elastic member. Holding the high-voltage line by urging the member,
A structure having at least a pair of wedge-shaped members slidably provided in the space of the high-voltage line holding portion in a direction perpendicular to the high-voltage line and so as to come close to each other when sliding toward the entrance side of the space. A connector for an underline. A high-voltage wire holding portion that holds the high-voltage wire, and a draw-line holding portion that holds the underline,
The high-voltage wire holding portion is configured to fit the high-voltage wire into a space defined by a recess formed so as to face the pair of connector members, and to tighten the high-voltage wire by the action of an elastic member. Holding the high-voltage line by urging the member in a predetermined direction,
Provided in the space of the high-voltage line holding part so as to be slidable along a plane parallel to the high-voltage line and so as to approach each other when sliding in one direction and away from each other when sliding in the opposite direction. An underline connector characterized by comprising at least a pair of wedge-shaped members.

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