JPS6367754B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a hot-stay operated clamping type connector tool used when a clamping type connector is used to hot-connect or hot-remove a branch line from the main line of an overhead electric line. It is something.

Conventionally, when using a clamping type connector to connect or disconnect a branch line from the main line of an overhead power line, one worker supports and lifts the bolt-side clamping piece using a hot stay.
Then, another worker supports and lifts the nut-side tightening piece with another hot stay to fit it onto the bolt, and then rotates the nut in the tightening direction with the hot stay and tightens it with the tightening type connector. The main line and branch line were fastened together.

However, when hot-connecting or removing branch lines from the main line in this way, 2
It is uneconomical because it requires several workers and two hot stakes, and two workers have to support the bolt side tightening piece and the nut side tightening piece separately with hot stakes. Since fitting work must be performed, there was a problem in that the work was difficult to perform.

The object of the present invention is to provide a tightening type connector tool which advantageously solves the above-mentioned problems.

Next, the present invention will be explained in detail using illustrated examples.

1 to 5 show a tightening type connector tool according to an embodiment of the present invention, in which a vertical shaft 12 is disposed concentrically within a rear vertical portion 1A of a tool body 1, and a bearing The vertical shaft 12 is rotatably supported through the vertical shaft 13, and two rotary force transmitting engagement pins 14 are fixed through the lower end of the vertical shaft 12 in a cross-shaped overlapping manner. A drive gear 15 consisting of a bevel gear is fixed to the upper end of the tool body 1, and a horizontal shaft 2 extending in the front-rear direction is disposed within the horizontal portion 1B of the tool body 1, and the horizontal shaft 2 is slidable. The driven gear 16, which is a bevel gear and is unrotatably fitted, is mounted on the bearing 1 by the horizontal portion 1B.
A socket 4, which is rotatably supported via a socket 7 and has a nut fitting recess 3, is fixed to the front end of the horizontal shaft 2 and is connected to the bearing 1 by the horizontal portion 1B.
It is rotatably supported via 8.

Spring receiving piece 19 fixed to the rear end of the horizontal shaft 2
A spring 20 for advancing the rear cover of the horizontal portion 1B is interposed in a compressed state, and the lower end of the movable holding member 5 is at a lower level than the socket 4 in the front support member 1C of the tool body 1. The movable holding member 5 is pivotally connected by a pivot shaft 6 extending in the left-right direction, and a recess 7 for fitting a bolt-side tightening piece is provided at the rear of the movable holding member 5. Further, a recess 7 for fitting a bolt-side tightening piece is provided at the rear upper part of the front support member 1C at the rear of the recess 7. A nut-side tightening piece fitting recess 8 is provided opposite to the recess 7, and the socket 4 is disposed within the recess 8.

The pivot 6 at the front end of the support member 1C
An opening operation member 10 that extends in the vertical direction is fitted in a lower front position than the above, and is movable up and down. At the lower end of the operation member 10, there is an engagement ring 21 for engaging a tension operation stay. are connected to each other, and the upper end of the operating member 10 and the upper end of the movable holding member 5 are connected via a connecting member 22 made of a helical spring. A push-up spring 11 that works to push up the operating member 10 is interposed between the front support member 1C and the front support member 1C in a compressed state.

Tightening presser pieces 24 each consisting of a pin are slidably fitted on the left and right sides of the movable holding member 5 and the front support member 1C, and the tightening presser pieces 24 include:
A pressing spring 25 is engaged with the front support member 1C to project it to both the left and right sides of the recesses 7 and 8, and a locking pin 26 extending in a direction perpendicular to the operating member 10 is slid onto the front support member 1C. A locking spring 27 is engaged with the locking pin 26 so as to be movable, and the locking spring 27 acts to press the locking pin 26 toward the operating member 10. When the locking pin 2
A locking engagement hole 28 is provided at a position corresponding to 6.

A support shaft 30 made of a screw fixed to the front support member 1C is inserted into a through hole provided in the middle of the lock release lever 29, and the tip of the lever 29 is located behind the lock pin 26. The lever 29 is arranged in front of the engaging piece 31 fixed to the end.
When the proximal end of the lever 29 is pushed forward, the locking pin 26 is moved rearward by the tip of the lever 29 against the elasticity of the locking spring 27, and the lock is released.

On both left and right sides of the movable holding member 5, a movable gripping piece 32 and a fixed gripping piece 33 are arranged so as to overlap in the front-back direction, and the middle part of the movable gripping piece 32 is attached to the front by a support shaft 34 extending in the left-right direction. The fixed gripping piece 33 is pivotally attached to the support member 1C, and the movable gripping piece 33 is fixed to the front support member 1C.
2 and the fixed gripping piece 33 are provided with an arcuate recess for fitting the branch line, and a clip spring 35 is interposed in a compressed state between the lower parts of the movable gripping piece 32 and the fixed gripping piece 33, and the movable Gripping piece 3
2. The fixed gripping piece 33 and the clip spring 35 constitute the branch line gripping clip 9.

FIG. 6 shows an example of a tightening type connector, in which the square shaft portion of the base end of the bolt 37 is fitted into the square hole in the middle of the bolt side tightening piece 36, and the tip portion of the bolt 37 , the middle part of the nut-side tightening piece 38, the flat washer 39, and the spring washer 40 are fitted in sequence, and the nut 41 is screwed together, and a main line fitting groove is formed in the upper part of each tightening piece 36, 38. 42, and a branch wire fitting groove 43 is provided at the bottom of each tightening piece 36, 38.

7 to 9 show an example of a rotary stay used in combination with the tightening type connector tool of the above embodiment, in which a torque wrench is attached to a holding member 45 equipped with a holding handle 44. At the same time, a rotating handle 46 is attached, and the proximal end of an outer tube 47 made of electrically insulating material is connected, and the end of a metal support member 48 is fitted to the distal end of the outer tube 47 and fixed with bolts. The intermediate portion of a locking member 51 having a hook 50 at its tip is pivotally mounted on both sides of the intermediate outer portion of the support member 48 in the diametrical direction by a pivot shaft 52 . Also, the locking metal fitting 51
, a stopper 5 facing the outer surface of the support member 48 is provided.
3 is integrally provided, and an engagement spring 54 is interposed in a compressed state between the proximal end of the locking fitting 51 and the support member 48, and the elasticity of the engagement spring 54 causes the stopper 53 to be attached to the support member 48. 48, the locking metal fitting 51 moves in the engaging direction, that is, the hook 50
is rotated in a direction approaching the support member 48.

Inside the outer tube 47, a bevel gear mechanism (not shown) is provided by a rotating handle 46 with a torque wrench.
A rotating shaft 55 made of an electrically insulating material is rotated through the rotating shaft 55, and the proximal end of a metal engaging member 56 is fitted into the distal end of the rotating shaft 55 and fixed by a pin 57. 56 is supported by the support member 48 via a bearing 58.

4 at the cylindrical tip of the engaging member 56.
Engagement recesses 59 are provided at equal angular intervals, and adjacent engagement recesses 59 are provided at the tip of the engagement member 56.
An inverted V-shaped guiding slope 60 having an apex is provided between the supporting members 48 and a detent protrusion 60 extending in the longitudinal direction of the supporting member on both sides of the supporting member in the diametrical direction. Article 61 is provided.

10 and 11 show a state in which the connector tool is attached to the tip of the rotary stake of the embodiment, and the tip of the support member 48 in the rotary stake is inserted into the tool body 1. At the same time, the anti-rotation protrusion 61 is fitted into the anti-rotation groove 62 of the vertical portion 1A of the tool body 1, and the hook 50 of the locking fitting 51 is inserted.
is engaged with the locking protrusion 63 of the vertical portion 1A, and further, the vertical shaft 12 is fitted into the engagement member 56, and the engagement pin 14 of the vertical shaft 12 is fitted into the engagement recess 59 of the engagement member 56. has been done.

As described, when the rotary handle 46 with torque wrench is rotated with the connector tool attached to the rotary stake, the rotation of the engagement member 56 is caused by the engagement pin 14, the vertical shaft 12, and the drive gear 1.
5, is transmitted to the socket 4 via the driven gear 16 and the horizontal shaft 2.

When using the clamping type connector tool, rotary stake, and clamping type connector of the above embodiment to perform live connection of a branch line to the main line of an overhead power line, first, as shown in Fig. 12, attach the bolt side. The tightening piece 36 is fitted into the recess 7 of the movable holding member 5, and the nut-side tightening piece 38 is fitted into the recess 8 of the front support member 1C.
The clamping pieces 24 are pressed against both left and right sides of the branch line 64, and the nut 41 is fitted into the socket 4, and the branch line support clips 9 on both the left and right sides are used to secure the branch line 64.
and then rotate the connector tool with the rotary
Attach it to the stand.

Next, lift the connector tool using the rotary stake, place the main wire 65 between the main wire fitting grooves 42 at the top of each tightening piece 36, 38, and then rotate the handle 46 with the torque wrench on the rotary stake. , rotate the socket 4 and nut 41 in the tightening direction, and tighten each tightening piece 36, 3.
8 grips the main line 65 and branch line 64.
In this case, the nut 41 moves forward by rotation in the tightening direction, and when the nut 41 moves forward, the horizontal shaft 2 and the socket 4 are also moved forward by the elasticity of the forward movement spring 20.

A grab hook stake or other suitable stake is then engaged with the engagement ring 21 and pulled downward to lower the operating member 10 and release the movable retaining member 5, as shown in FIG. , the locking pin 26 is inserted into the locking engagement hole 28.
to lock the operating member 10 in the lowered position. Next, the connector tool is moved slightly backward to remove the socket 4 from the nut 41, and then the connector tool is lowered to the ground.

When carrying out this invention, the lock mechanism that automatically operates when the operating member 10 is lowered is as follows:
A locking mechanism having an arbitrary structure other than that shown in the drawings may be employed, and a spiral gear may be used as the driving gear 15 and the driven gear 16. Furthermore, as the connecting member 22 that connects the upper end of the operating member 10 and the upper end of the movable holding member 5, a link or other member may be used instead of the helical spring, or a link or other member may be used in place of the helical spring. The connecting member 22 may be omitted by providing an elongated hole extending in the front-rear direction and fitting a pin fixed to the upper end of the operating member 10 into the elongated hole.

As a means for lowering the opening operating member 10, the operating member 10 may be lowered by connecting a string to the engagement ring 21 and pulling the string.

According to this invention, the bolt side tightening piece 36 is provided in the bolt side tightening piece fitting recess 7 of the movable holding member 5.
At the same time, the nut side tightening piece 38 is fitted into the nut side tightening piece fitting recess 8 in the front part of the tool body 1, and the nut 41 is fitted into the socket 4, and the right and left branches are fitted. Grip the branch wire 64 with the wire gripping clip 9, then lift the connector tool with the rotary stay and remove the main wire 65.
After arranging the respective tightening pieces 36 and 38 on both sides of the connector, the nut 41 is rotated in the tightening direction via the transmission mechanism, the horizontal shaft 2, and the socket 4 by the rotary stay, thereby forming a tightening type connector. This allows one worker to tighten the main line 6 using one rotary stake.
5 and the branch line 64 can be easily installed, and after the installation is completed, the release operation member 10 can be simply pulled downward. According to
As the movable holding member 5 is rotated to the open position, the movable holding member 5 can be held in the open position by the operation of the locking mechanism, so that the connector tool can be easily removed from the clamping type connector and lowered to the ground. Effects such as being able to do this can be obtained.

[Brief explanation of drawings]

1 to 5 show a tightening type connector tool according to an embodiment of the present invention, in which FIG. 1 is a side view, FIG. 2 is a front view, and FIG. 3 is a connector fitting part. FIG. 4 is a plan view showing the vicinity, FIG. 4 is a longitudinal sectional side view, and FIG. 5 is a sectional view showing the tightening piece holding portion.
FIG. 6 is a side view of the tightening type connector. 7th
9 to 9 show an example of a rotary stay, in which FIG. 7 is a front view, FIG. 8 is an enlarged longitudinal sectional front view of the tip side portion, and FIG. 9 is an end view of the tip side portion. . Fig. 10 is a partial vertical sectional view showing the state in which the connector tool is connected to the rotary stay, Fig. 11 is a sectional view taken along the line A-A, and Fig. 12 is the tightening type connector and branch line set on the connector tool. FIG. 13 is a partially vertical side view showing a state in which the movable holding member is released after the tightening type connector has been completely tightened. In the figure, 1 is the tool body, 2 is the horizontal shaft, 3 is the nut fitting recess, 4 is the socket, 5 is the movable holding member, 6 is the pivot, 7 is the bolt side tightening piece fitting recess,
8 is a recess for fitting the nut side tightening piece, 9 is a clip for gripping the branch line, 10 is an opening operation member, 11 is a push-up spring, 12 is a vertical shaft, 14 is an engagement pin, 15 is a drive gear, and 16 is a Driven gear, 20 is a forward spring, 2
1 is an engagement ring, 22 is a connecting member, 24 is a tightening presser piece, 25 is a pressing spring, 26 is a locking pin, 27
28 is a locking spring, 28 is a locking engagement hole, 29 is a lock release lever, 32 is a movable gripping piece, 33 is a fixed gripping piece, 35 is a clip spring, 36 is a bolt side tightening piece, 37 is a bolt, 38 is a nut side tightening piece, 41 is a nut, 44 is a holding handle, 45 is a holding member, 46 is a rotating handle with a torque wrench,
47 is an outer tube made of electrically insulating material, 48 is a support member, 5
1 is a locking metal fitting, 54 is an engagement spring, 55 is a rotating shaft made of electrically insulating material, 56 is an engagement member, 59 is an engagement recess, 61 is a protrusion for rotation prevention, 62 is a groove for rotation prevention, and 63 is a rotation shaft. The locking protrusion, 64 is a branch line, and 65 is a main line.

Claims (1)

[Claims] 1 Tool body 1 fitted to the hot stake
A horizontal shaft 2, which is rotated by a rotating member of the hot stake via a transmission mechanism, is provided within the shaft so as to extend in the front-rear direction, and at the front end of the horizontal shaft 2,
A socket 4 having a nut fitting recess 3 is fixed thereto, and a movable holding member 5 is attached to the front part of the tool body 1.
The lower part of the tool body 1 is pivoted by a pivot 6 extending in the left-right direction at a level lower than the socket 4, and a recess 7 for fitting the bolt-side tightening piece is provided at the rear of the movable holding member 5. A nut-side tightening piece fitting recess 8 is provided in the front portion behind the recess 7 and faces the recess 7, and branch line gripping clips 9 are provided on the tool body 1 on both left and right sides of the movable holding member 5. installed, tool body 1
An opening operation member 10 is fitted into a position lower forward of the pivot 6 in the figure, and the upper part of the opening operation member 10 and the upper part of the front part of the movable holding member 5 are directly or indirectly connected to each other. A push-up spring 11 is engaged with the operating member 10 and acts to push it up, and a push-up spring 11 is provided between the operating member 10 and the tool body 1, and is automatically activated when the operating member 10 is lowered. A tightening type connector tool characterized by being equipped with a locking mechanism.