JP5349137B2 - Underline connector - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a connector for a drop wire using engagement of screws for attachment to high voltage line, and with the screws designed not to be loosened. <P>SOLUTION: The connector for a drop wire 1 includes a connector body 4 to be fixed to an electric wire and a cover 5 to cover the connector body 4. Operation means 17 of the connector body 4 is provided with a shaft part 24 with a male screw and a pressing part 16 at the end of the same. A connecting portion 9 is equipped with a screw hole 12 for making a spiral connection with the shaft part 24 and integrally formed with a hook and hold portion 8. The cover 5 is provided with: an opening through which the high voltage line 3 can get inside of the connector so that the hook and hold portion 8 is hung on the high voltage line 3; a lid body 32 sealing the opening and can freely be opened and closed; and regulating means 40 arranged on the lid body 32 and regulating a location of the shaft part 24 so that the shaft part 24, engaging with the screw hole 12 of the connecting portion 9, does not rotate in the state where the lid body 32 is closed. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to an underline connector that branches from a high-voltage electric wire installed on a utility pole, for example.

  For example, an underline drawn into a transformer is branched from a high-voltage wire installed on a utility pole, but this branch is designed for an underline configured so that the high-voltage line and the underline can be locked together. A connector is provided. The operation of branching the underline from the high-voltage wire by the underline connector is performed using, for example, a common operation rod for a predetermined indirect hot line operation.

  Conventionally, when an underline is branched from a high-voltage electric wire through an underline connector by indirect hot line operation, one operator holds the underline connector while another operator The work such as connecting the underline to the connector is necessary, and the work is very complicated.

  As an underline connector for improving the workability of this branching work, for example, there is one having a high voltage electric wire holding part for holding a high voltage electric wire and a down line holding part for holding an underline (for example, see Patent Document 1). ). The high-voltage electric wire holding part of the underline connector suspends a space defined by forming a part of the connector member in a hook shape on the high-voltage electric wire.

  The underline connector further includes a high-voltage electric wire pressing means that is displaced in the space of the high-voltage electric wire holding portion. The high-voltage wire holding means has a rotating part that can be operated by a common operation rod for indirect hot-wire work, and by rotating the rotating part, a dish-shaped member is provided so that it can advance and retreat with respect to the high-voltage electric wire. (Refer particularly to claim 5 and FIGS. 9 and 10 of Patent Document 1).

  More specifically, the configuration in which the dish-shaped member can advance and retreat with respect to the high-voltage electric wire is such that the threads of the thread block body and the thread recess are engaged with each other, and the rotating part is rotated. This is realized by moving the block body up and down relative to the thread recess.

JP 2008-289306 A

  In the conventional underline connector, since the engagement of the thread block body and the thread of the thread recess, that is, the engagement of the screw, is used, for example, the screw loosens due to the vibration of the high voltage electric wire, It is also assumed that the pressing means for pressing the high-voltage electric wire cannot exhibit a sufficient function.

  The present invention has been made in view of such circumstances, and it is an object of the present invention to provide a connector for an underline that prevents the screw from loosening when it is attached to a high-voltage electric wire by utilizing the engagement of the screw. And

  In order to solve the above problems, the present invention has taken the following technical means.

That is, the present invention comprises a hook portion configured to be hooked and hooked to a high-voltage electric wire, a pressing portion that presses the high-voltage electric wire with the hooking portion, and the pressing portion to the hooking portion. A connector main body having an operating means that operates to approach and separate, and a connecting portion that connects the operating means and the hooking portion, and electrically connects the hooking portion and the underline, And a cover for covering the connector body, wherein the operating means of the connector body has a shaft portion on which an external thread is formed and the pressing portion is provided at an end thereof, and the connection The part is formed integrally with the latching part, and is provided with a screw hole into which the shaft part is screwed, and the cover has a high-voltage wire inside so that the latching part can be hung on the high-voltage cable. An opening that can be inserted and this opening A lid that can be freely opened and closed, and a restriction that regulates the position of the shaft so that the shaft engaged with the screw hole of the connecting portion does not rotate with the lid closed. Means, a first support part for supporting the high-voltage electric wire, and a second support part for supporting the underline .

  According to such a configuration, by restricting the position of the shaft portion so that the shaft portion does not rotate by the restricting means, it is possible to reliably prevent the shaft portion from being loosened due to vibrations caused by shaking of the high-voltage electric wire, etc. The state fixed to the electric wire can be maintained for a long time.

  Further, the underline connector according to the present invention is a projection that protrudes from the lid and contacts the pressing portion so that the regulating means regulates the position so that the shaft portion does not rotate when the lid is closed. The structure which has can be employ | adopted.

  According to such a configuration, the projecting portion comes into contact with the pressing portion only by closing the lid, and the position is regulated so that the shaft portion does not rotate. Therefore, workability is improved.

  In addition, the underline connector according to the present invention can employ a configuration including an urging unit that urges the pressing portion so that the pressing portion can elastically press the high-voltage electric wire.

  According to such a configuration, the pressing portion can elastically press the high voltage electric wire by the urging means, so that the connector can be attached to various high voltage electric wires having different diameters.

  The underline connector according to the present invention can prevent a screw from loosening when it is attached to a high-voltage electric wire by utilizing the engagement of the screw.

1 is a side view showing a first embodiment of an underline connector according to the present invention. It is a side view of a cover similarly. It is a front view of a cover similarly. It is a side view of the connector for underline similarly. It is a side view which shows 2nd Embodiment of the connector for underlining based on this invention. It is a side view which shows the other example of the connector for underlining. It is a side view which shows the other example of the connector for underlining. It is a side view which shows the other example of the connector for underlining.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

  1 to 4 show a first embodiment of an underline connector (hereinafter simply referred to as “connector”) according to the present invention. The connector 1 has a connector main body 4 for electrically connecting the underline 2 and the high-voltage electric wire 3, and a cover 5 that covers the connector main body 4.

  The connector body 4 has a first component member 6 and a second component member 7. The 1st component member 6 is mainly comprised by the metal which has electroconductivity, and an elongate board member. The first component member 6 is configured in a hook shape (saddle shape) and connects the latching portion 8 latched on the high voltage electric wire 3 and the second component member 7, and the underline 2 is connected. And a connecting portion 9.

  The latching portion 8 is formed by bending one end of the plate member in a hook shape. The connecting portion 9 is provided at the other end of the plate member. In addition, the middle part of the elongate plate member which comprises the 1st structural member 6 is formed in linear form by side view (this linear part is shown with the code | symbol 6a).

  The connecting portion 9 has conductivity and is integrally formed with the latching portion 8. The connecting portion 9 includes a first connecting portion 10 that connects the first constituent member 6 and the second constituent member 7, and a second connecting portion 11 that connects the first constituent member 6 and the underline 2.

  The 1st connection part 10 has the screw hole 12 penetrated to an up-down direction. The second connecting portion 11 is formed in a cylindrical shape, and an end portion of the underline 2 is inserted into the second connecting portion 11 and fixed by crimping, welding, or other fixing means. Thereby, the latching part 8 is electrically connected to the underline 2.

  The second component member 7 includes a pressing portion 16 that presses the electric wire together with the latching portion 8 to fix the connector main body 4 to the high-voltage electric wire 3, and an operating means 17 for operating the pressing portion 16. .

  The upper surface 16 a of the pressing portion 16 is a contact surface that faces the latching portion 8 and contacts the high-voltage electric wire 3. The upper surface 16 a of the pressing portion 16 is a concave curved surface with a predetermined radius of curvature so as to correspond to the shape (circular shape) of the outer surface of the high-voltage electric wire 3.

  Further, an insertion hole 21 through which the straight portion 6 a of the plate member constituting the first component member 6 is inserted is formed in the pressing portion 16 so as to penetrate in the vertical direction. By inserting the straight portion 6a of the plate member into the insertion hole 21, the pressing portion 16 can move linearly in the longitudinal direction of the straight portion 6a of the plate member, that is, in the vertical direction.

  The operation means 17 includes an operation unit 23 that is operated by a shared operation rod for indirect hot-line work, and a shaft unit 24 on which a male screw is formed. The operation unit 23 has an engagement groove 25 that engages with a tip tool attached to the tip of the common operation rod.

  The operation unit 23 is made of an insulating material (for example, synthetic resin). The operation unit 23 protrudes downward from the lower part of the cover 5 body. Further, the operation unit 23 is integrally fixed to one end portion of the shaft portion 24. A pressing portion 16 is provided at the other end portion of the shaft portion 24 so as to be rotatable relative to the shaft portion 24.

  Therefore, when the operation part 23 is operated so as to rotate about the axis of the shaft part 24, the shaft part 24 rotates together with the operation part 23, but the pressing part 16 is inserted into the insertion hole 21 in the first component member 6. The straight portion 6a is inserted to prevent rotation, and the shaft portion 24 does not rotate.

  The shaft portion 24 is fitted into the screw hole 12 formed in the second connecting portion 11 of the first component member 6. Therefore, when the operation portion 23 is rotated by the common operation rod, the shaft portion 24 is rotated together with this, and the pressing portion 16 can be moved toward and away from the latching portion 8.

  The cover 5 includes a cover body 31 and a lid body 32 that can be opened and closed with respect to the cover body 31. The cover body 31 has an opening (hereinafter referred to as “first opening”) 33 for inserting and removing the high-voltage electric wire 3 with respect to the cover body 31 and an opening for inserting the shaft portion 24 of the first component member 6. Portion (hereinafter referred to as “second opening portion”) 34, a support portion (hereinafter referred to as “first support portion”) 35 that supports high-voltage electric wire 3, and a support portion (hereinafter referred to as “second support portion”) that supports underline 2. ) 36 and a fixing portion (hereinafter referred to as “first fixing portion”) 31 a for fixing the lid 32.

  As shown in FIGS. 2 and 3, the cover body 31 is formed with two first support portions 35, 35. The two first support portions 35, 35 protrude in opposite directions along one substantially in the horizontal direction. Each first support portion 35 has two protrusions 35a and 35b each having a half-cylinder shape. One of the two protrusions 35 a and 35 b protrudes laterally from the outer surface of the cover body 31. The other protrusion 35 b protrudes laterally from the outer surface of the lid 32.

  The first support portion 35 is configured to have a cylindrical shape by contacting the edges of the two protrusion portions 35a and 35b when the lid 32 is closed. The first support portion 35 supports the high voltage electric wire 3 between the two protrusions inside the cylindrical shape with the lid 32 closed.

  The second support portion 36 is a cylindrical portion that protrudes from the outer surface of the cover main body 31. The second support portion 36 is configured to communicate with the inside of the cover main body 31, and the underline 2 is inserted inside the second support portion 36 to support the underline 2. The second support portion 36 is preferably formed in a bellows shape, for example, so that the force applied to the underline 2 can be absorbed.

  As shown in FIGS. 2 and 3, the first fixing portion 31 a is formed in a flange shape with a predetermined thickness on the outer surface of the cover main body 31. A through-hole penetrating in the thickness direction is formed in the first fixing portion 31a.

  The lid body 32 is rotatably connected to the cover body 31 via a hinge portion 38. The lid 32 is for covering the first opening 33 of the cover body 31.

  The lid 32 is formed with a fixing portion (hereinafter referred to as “second fixing portion”) 32 a for fixing the lid 32 to the cover body 31. The second fixing portion 32a is formed in a flange shape so as to face and contact the first fixing portion 31a of the cover body 31 when the lid 32 is closed. A through hole corresponding to the through hole formed in the first fixing portion 31a is formed in the second fixing portion 32a.

  When the lid 32 is closed so as to cover the first opening 33, the first fixing portion 31a and the second fixing portion 32a are in contact with each other so as to overlap each other, and the through hole of the first fixing portion 31a and the second hole The through hole of the fixed part 32a is made to coincide. In this state, the lid body 32 is fixed to the cover body 31 by inserting a predetermined fastener 39 through the matching through hole.

  In order to maintain the state where the high voltage electric wire 3 is sandwiched and fixed by the latching portion 8 of the first component member 6 and the pressing portion 16 of the second component member 7, the pressing portion 16 is pressed on the lid 32. A restricting means 40 is provided for restricting the position of the shaft portion 24 so that the shaft portion 24 does not rotate with respect to the screw hole 12 of the first connecting portion 10 so as not to be separated from the high-voltage electric wire 3.

  Specifically, the restricting means 40 is a protrusion protruding from the inner surface of the lid 32 (hereinafter, the common reference 40 is used for the restricting means and the protrusion). The protrusion 40 is configured such that when the lid 32 is closed, the upper portion (upper surface 40a) abuts the lower portion (lower surface 16b) of the pressing portion 16.

  As described above, since the protruding portion 40 is in contact with the lower portion (lower surface 16 b) of the pressing portion 16, even if a rotational force that causes the pressing portion 16 to move away from the high voltage electric wire 3 acts on the shaft portion 24, the protruding portion. It is blocked by 40 and cannot rotate. That is, the position of the shaft portion 24 is regulated so as not to rotate with respect to the screw hole 12 of the first connecting portion 10.

  Further, a concave portion 40b into which the shaft portion 24 is inserted is formed on the side portion of the projection portion 40 so that the projection portion 40 does not interfere with the shaft portion 24 of the second component member 7 when the lid 32 is closed. Yes.

  Hereinafter, a method of using the connector 1 having the above configuration (a method of constructing the underline 2) will be described. In order to branch the underline 2 from the high-voltage electric wire 3 via the connector 1, the covering of the portion of the high-voltage electric wire 3 to which the connector 1 is attached is removed, and the latching portion 8 of the connector body 4 is attached to the exposed core wire portion. Multiply. In this state, the pressing portion 16 of the second component member 7 is in a state separated from the high-voltage electric wire 3.

  Then, the operation portion 23 of the second component member 7 protruding downward from the second opening 34 of the cover body 31 is rotated clockwise by the common operation rod when viewed from below, and the shaft portion 24 is rotated around its axis. Rotate to Thereby, the pressing part 16 moves upward and approaches the latching part 8 and the high voltage electric wire 3.

  When the shaft portion 24 is further rotated, the pressing portion 16 contacts and presses the high voltage electric wire 3. At this time, the force with which the pressing part 16 presses the high-voltage electric wire 3 can be adjusted by adjusting the force applied to the common work bar.

  When the pressing portion 16 presses the high-voltage electric wire 3, the connector body 4 is firmly fixed to the high-voltage electric wire 3 with the high-voltage electric wire 3 being sandwiched between the latching portion 8 and the pressing portion 16. Thereby, the underline 2 is electrically connected to the high voltage electric wire 3 through the first component 6.

  Thereafter, the lid 32 is closed so as to cover the first opening 33. When the lid 32 covers the first opening 33, the protrusion as the restricting means 40 comes into contact with the lower portion (lower surface 16 b) of the pressing portion 16 that presses the high-voltage electric wire 3, and the recess of the protruding portion 40. The shaft portion 24 of the second component member 7 enters the state 40b. As a result, the position of the shaft portion 24 is regulated so that the pressing portion 16 does not fall downward, that is, the shaft portion 24 does not rotate. Thus, the attachment of the connector 1 to the high voltage electric wire 3 is completed.

  Next, the underline 2 connected to the connector main body 4 is connected to a transformer through connection devices such as an insulator and a cutout on a utility pole. In addition, by attaching a compression sleeve to the tip of the underline 2 in advance, when other lines and the underline 2 are connected, the connecting operation can be easily performed via the compression sleeve. Can do.

  According to the connector 1 according to the present invention described above, the position of the pressing portion 16 can be regulated by the regulating means 40 so that the shaft portion 24 on which the male screw is formed does not rotate in the loosening direction. 3 is pressed, and the connector body 4 can be maintained for a long time in a state where the connector main body 4 is fixed to the high voltage electric wire 3.

  In addition, the restricting means 40 is a protrusion protruding from the inner surface of the lid 32, and when the lid 32 is closed, the protrusion 40 abuts the lower portion of the pressing portion 16 so that the pressing portion 16 becomes the high-voltage electric wire 3. Since the position of the shaft portion 24 is regulated so as not to be separated from the position, the operation can be easily performed only by a simple operation of closing the lid 32, and this is very convenient in this respect. It is.

  FIG. 5 shows a second embodiment of the connector 1 according to the present invention. The connector 1 according to the present embodiment is different from the first embodiment in the configuration of the pressing portion 16 of the second component member 7. The pressing portion 16 includes a contact member 41 that can contact the high-voltage electric wire 3 and a support member 42 that supports the contact member 41.

  The contact member 41 has a concave curved surface so that the upper surface 41 a engages the outer surface of the high-voltage electric wire 3. Two columnar protrusions (hereinafter referred to as “first protrusions”) 43 projecting downward are formed on the lower portion of the contact member 41. Further, two projecting portions (hereinafter referred to as “second projecting portions”) 44 projecting sideways are formed on the side portion of the contact member 41.

  The support member 42 is connected to the shaft portion 24 of the second component member 7 so as to be relatively rotatable. The support member 42 includes an insertion hole 21 through which the linear portion 6a of the first component member 6 is inserted, a recess (hereinafter referred to as a “first recess”) 45 into which a lower portion of the contact member 41 is inserted, and a first recess. 45 and has two recesses (hereinafter referred to as “second recesses”) 46 into which the protrusions of the contact member 41 are inserted.

  A latching protrusion 47 that latches the contact member 41 is formed on the upper portion of the first recess 45. This latching protrusion 47 abuts against the second protrusion 44 of the abutting member 41, thereby latching the abutting member 41 so that the abutting member 41 does not come off the first recess 45.

  The pressing portion 16 is provided with a biasing means 48 that biases the pressing portion 16 so as to elastically press the high voltage electric wire 3. Specifically, the urging means 48 is provided between the contact member 41 and the support member 42. As the biasing means 48, for example, a coil spring is used (hereinafter, the common sign 48 is used for the biasing means and the coil spring). The coil spring 48 is placed in the second recess 46 and one end thereof is in contact with the bottom surface of the second recess 46.

  The other end of the coil spring 48 is in contact with the lower surface of the contact member 41. Inside the coil spring 48, the first protrusion 43 of the contact member 41 is inserted. The front end of the first protrusion 43 inserted in the second recess 46 is not in contact with the bottom surface of the second recess 46.

  In other words, the coil spring 48 supports the contact member 41 so that the tip of the second protrusion 44 does not contact the bottom surface of the second recess 46. That is, the support member 42 supports the contact member 41 through the coil spring 48.

  More specifically, since the contact member 41 is supported by the support member 42 via the coil spring 48, the force for pressing the high-voltage electric wire 3 is maintained by the elastic force of the coil spring 48, and in this state Movement in the vertical direction is allowed. Thereby, the connector 1 can attach the connector main body 4 to various high-voltage electric wires 3 having different diameters, and is particularly useful in this respect.

  Other configurations of the present embodiment are substantially the same as those of the first embodiment. In this embodiment, elements common to the first embodiment are denoted by common reference numerals and description thereof is omitted. Also in this embodiment, there exists an effect similar to 1st Embodiment.

  The present invention is not limited to the above-described embodiment, and various changes and modifications can be made without departing from the spirit of the invention.

  For example, in the above-described embodiment, the example in which the restricting means 40 that restricts the position of the shaft portion 24 by bringing the protruding portion (40) protruding from the inner surface of the lid body 32 into contact with the pressing portion 16 has been shown. However, the present invention is not limited to this. That is, for example, as shown in FIG. 6, the connector 1 has a band-shaped or string-shaped metal regulating member 50 (regulating means 40) on the outer surface of the lid 32.

  In the connector 1, when the lid 32 is closed, the restricting member 50 is plastically deformed and engaged with the engaging groove 25 of the operating portion 23 so that the operating portion 23 does not rotate. The position can be regulated so as not to rotate.

  The connector 1 shown in FIG. 6 is configured to open and close when the lid 32 slides up and down with respect to the cover body 31. Moreover, it is desirable that the regulating member 50 is covered with an insulator. In addition, the connector 1 has an opening 51 through which the high-voltage electric wire is inserted into the case main body 31, and the state in which the high-voltage electric wire 3 is inserted into and removed from the opening 51 by sliding the lid 32, and the opening 51. The state can be changed to a state in which the high-voltage electric wire 3 inserted in can not be removed.

  Further, as shown in FIG. 7, the lid body 32 is rotatably provided on the cover body 31 via a hinge portion 38, and is engaged with the engaging groove 25 of the operation portion 23 on the lower outer surface of the lid body 32. Providing a protrusion 52 (regulation restricting means 40), and when the lid 32 is closed, the protrusion 52 enters the engagement groove 25 so that the operation portion 23 and the shaft portion 24 do not rotate. Position restriction may be performed.

  Further, as shown in FIG. 8, the entire operation unit 23 is accommodated in the cover main body 31, and a lid body 32 is rotatably provided on the cover main body 31 via a hinge portion 38. By providing a protrusion 53 (regulating means 40) that engages with the engagement groove 25 of the operation portion 23 on the inner surface of the lower portion and closing the lid 32, the protrusion 53 enters the engagement groove 25. The position of the operation unit 23 and the shaft unit 24 may be restricted so as not to rotate. In this case, the operation tool 23 is operated by inserting a tip tool of a common operation rod into the cover body 31 through the second opening 34 formed in the lower part of the cover body 31.

  In the above embodiment, the first fixing portion 31a formed on the cover body 31 and the second fixing portion 32a provided on the lid body 32 are overlapped, and the fastener 39 is inserted into the through-hole formed in the first fixing portion 31a. Although the example which fixes the body 32 to the cover main body 31 was shown, it is not limited to this, A hook-shaped latching | locking part is formed in one of the cover main body 31 and the cover body 32, and this latching part is received in the other. A configuration that forms a receiving portion can be employed. In addition, various conventional means for fixing when the lid is closed can be employed.

  In the second embodiment described above, the coil spring is used as the biasing means 48 for biasing the pressing portion 16. However, the present invention is not limited to this. The biasing means may be configured.

  DESCRIPTION OF SYMBOLS 1 ... Connector, 2 ... Underline, 3 ... High voltage electric wire, 4 ... Connector main body, 5 ... Cover, 6 ... 1st structural member, 6a ... Linear part of 1st structural member, 7 ... 2nd structural member, 8 ... Hanging Stop part, 9 ... connecting part, 10 ... first connecting part, 11 ... second connecting part, 12 ... screw hole, 16 ... pressing part, 16a ... upper surface of pressing part, 16b ... lower surface of pressing part, 21 ... insertion hole , 23 ... operation part, 24 ... shaft part, 25 ... engagement groove, 31 ... cover main body, 31a ... first fixing part, 32 ... lid, 32a ... second fixing part, 33 ... first opening part, 34 ... 2nd opening part, 35 ... 1st support part, 35a ... Projection part, 35b ... Projection part, 36 ... 2nd support part, 38 ... Hinge part, 39 ... Fastener, 40 ... Control means, 40a ... Control means (protrusion) Part)), 40b ... concave part, 41 ... contact member, 41a ... upper surface of contact member, 42 ... support member, 43 ... first projection part, 4 2nd protrusion, 45 ... 1st recessed part, 45a ... Bottom surface of 1st recessed part, 46 ... 2nd recessed part, 47 ... Latching projection part, 48 ... Energizing means, 50 ... Restricting member, 51 ... Opening part, 52 ... Protrusions, 53 ... Protrusions

Claims (3)

A hook portion that is configured as a hook and is hooked to the high-voltage electric wire, a pressing portion that presses the high-voltage electric wire together with the hook portion, and a pressing portion that approaches and separates from the hook portion A connector body having an operating means for operating the connecting means, a connecting part for electrically connecting the operating means and the hooking part, and electrically connecting the hooking part and the underline, and a cover for covering the connector main body An underline connector comprising:
The operation means of the connector main body has a shaft portion on which a male screw is formed and the pressing portion is provided at an end thereof,
The connecting portion is integrally formed with the latching portion and is provided with a screw hole into which the shaft portion is screwed.
The cover is provided on the lid body, an opening that allows the high-voltage electric wire to be inserted inside the high-voltage electric wire so that the latching portion can be hung, an openable / closable lid that closes the opening, Restricting means for restricting the position of the shaft portion so that the shaft portion engaged with the screw hole of the connecting portion does not rotate in a state where the lid is closed, a first support portion for supporting the high-voltage electric wire, and a draw line And a second support portion for supporting the underline connector.   2. The underline connector according to claim 1, wherein the restricting means has a protrusion that protrudes from the cover and abuts against the pressing portion so as to restrict the position of the shaft so that the shaft does not rotate when the cover is closed. .   The underline connector according to claim 1 or 2, further comprising an urging unit that urges the pressing portion so that the pressing portion can elastically press the high-voltage electric wire.

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