JP2007060768A - Unipolar mold switch removing manipulator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safe and simple unipolar mold switch removing manipulator which allows the user to collectively perform the removal operation of a plurality of unipolar mold switches. <P>SOLUTION: The manipulator 3 is provided with a plurality of mold holders 4a-4c which engage with the grips 2a-2c of a plurality of unipolar mold switches 1a-1c, a holding plate 5 which holds these mold holders arranged in parallel, a shaft 8 which is movable in its axial direction, with its one end coupled with this holding plate 5, and a handle 27 which is installed as a "lever" whose middle works on the other end, with its one end as a fulcrum. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a detachment operation device used when removing a monopolar molded switch installed in a distribution switch storage box such as a high voltage cabinet.

  Mold switches used for opening and closing high-voltage distribution lines arranged in the ground are often single-pole type switches, one for each of the three phases, a total of three being arranged in parallel. When removing a single-pole molded switch to open a distribution line for wire construction or equipment replacement, a single pole is opened and closed using a tool. In that case, an air switch is installed in the transformer room on the ground as means for cutting off the distribution line when the user's no-load situation cannot be confirmed due to an emergency response or the like.

  However, since the work of removing the three single-pole mold switches one by one is usually carried out by the hands of the worker, in addition to the long work time and labor, in order to prevent single-phase operation, It was essential to operate the aerial switch.

  Moreover, the conventional tool for single-pole mold switches has a structure for holding one single-pole mold switch, and the work for pulling it out is due to the human power of the worker, and requires a large force.

  Therefore, a lightweight and small switch tool that allows an operator to easily remove the switch in a short time has been proposed (Patent Document 1 below). This includes a holding plate that sandwiches and holds a part of the ceiling of the switch storage box, a frame that has a seat that receives the lower end portion of the connection busbar, and a rotation that is provided on the frame. A separation tool having a mechanism, a handle and a cam fixed to a rotation shaft of the rotation mechanism, and a lower plate, disposed below the switch, and provided between a receiving plate, a base portion, and the receiving plate and the base portion. And a cradle comprising a shock absorber. In use, by rotating the handle of the pulling tool around the rotation axis, the cam pushes down the upper surface of the switch to disconnect the switch from the connection bus, and the cradle flexibly fixes the switch. It is something to support.

Japanese Patent Laid-Open No. 11-18219

  However, with this switch tool, a single-pole mold switch or a multi-pole mold switch can be pulled out one by one, but a plurality of single-pole mold switches cannot be pulled out at once. In addition, depending on the skill of the operator, there is a case where the operator pulls in an oblique direction with respect to the drawing direction and cannot be removed correctly.

  The present invention has been made in view of the above situation, and the object thereof is to reduce the labor for removing the monopolar mold switch, to shorten the work time, and to omit the operation of the air switch. An object of the present invention is to provide a device for removing a single-pole mold switch.

  The present invention is an operating device used for removing a plurality of single-pole mold switches each having a grip portion, a plurality of mold holders engaged with the grip portions of each single-pole mold switch, A holding means for arranging and holding the mold holders in parallel, a shaft connected at one end to the holding means, movable in the length direction, and supported rotatably at one end as a fulcrum, the other end of the shaft And a handle that acts as a lever.

In an embodiment of the present invention, a link mechanism for causing the handle to act on the other end of the shaft is provided. In this link mechanism, both ends of four rod-shaped members are rotatably connected to form a parallelogram, and one end of each of the two rod-shaped members is rotatably connected to the inside of the parallelogram. An end is rotatably connected to two adjacent sides of the parallelogram so as to form a small parallelogram that shares one corner and two sides with the parallelogram,
The shaft has a long hole that is slidable in the length direction with a corner shared by the two parallelograms as a fulcrum, and the other end of the shaft is the corner of the small parallelogram Connected to the first diagonal that is the diagonal of the shared corner,
In the outer parallelogram of the two parallelograms, the handle comes into contact with a second diagonal portion that is a diagonal of the common corner portion, and the second diagonal portion is moved.

  It is preferable that the link mechanism has a roller that rotates in contact with the handle at the second diagonal portion. Moreover, it is preferable that the said handle | steering_wheel consists of a substantially S-shaped rod-shaped member.

  In another aspect, the holding means holds a plurality of mold holders such that some of the mold holders are displaced with respect to other mold holders.

  According to the present invention, when removing a plurality of single-pole mold switches, first, a plurality of mold holders arranged in parallel with the holding means are respectively attached to the grip portions of the plurality of single-pole mold switches. Engage. When the operator operates the handle, the handle acts as a “lever” on the other end of the shaft connected to the holding means, and moves the shaft in the length direction. A plurality of single-pole mold switches can be removed collectively through the holder. A large force is not required for this work, and since it is pulled out collectively, the work time and labor can be reduced, and the operation of the air switch for preventing single-phase operation can be omitted.

  Moreover, if a handle | steering-wheel is operated in a reverse direction after removing several single pole mold switches, a single pole mold switch can be returned to an installation state. That is, the operating device of the present invention can be used not only for removing a plurality of single-pole mold switches but also for installing them.

  According to the embodiment of the present invention, the shaft can be reliably and easily moved in the length direction by applying the force of the handle to the other end of the shaft via the link mechanism.

  FIG. 1 shows a configuration of three single-pole mold switches 1a, 1b, and 1c and an operating device 3 that can pull them out collectively. The operating device 3 includes mold holders 4a, 4b, 4c, a holding plate 5 as a holding means for holding the mold holders, and a grip supported at both ends by a pair of grip rod support plates 6a and 6b provided on the holding plate 5. The rod 7 includes a shaft 8, a pair of support arms 25a and 25b, a pair of substrates 26a and 26b, a handle 27, and a pantograph-like link mechanism 31.

Each mold switch 1a, 1b, 1c has one grip part 2a, 2b, 2c, respectively, and each grip part 2a, 2b, 2c is orthogonal to the drawing-out direction of a monopolar mold switch. It has a pin 32 protruding in the direction. As will be described later, one end of the mold holders 4a, 4b, 4c of the operating device 3 is engaged with these pins 32, so that the mold switches 1a, 1b, 1c are respectively associated with the corresponding mold holders 4a, 4a, 4c. 4b and 4c. Since each mold holder 4a, 4b, 4c has the same structure, one of them will be described below.
As shown in FIGS. 2 and 3, one mold holder 4 a includes a metal cylindrical inner cylinder 33 that slidably passes through a circular opening provided in the holding plate 5, and slides outward. A metal cylindrical outer cylinder 35 that can be arranged, and a coil spring 37 wound around the inner cylinder 33 fitted to the outer cylinder 35 are configured.

  The inner cylinder 33 has a notch 34 and a long hole 40 at the end on the side of the single-pole mold switch, and the end that protrudes from the holding plate 5 on the opposite side has a larger diameter than the opening of the holding plate 5. This is part 33a.

  The outer cylinder 35 has a notch 36 and a screw hole 38. In a state where the inner cylinder 33 is fitted to the outer cylinder 35, the screw 39 is screwed into the screw hole 38 and enters the long hole 40 of the inner cylinder 33, so that the outer cylinder 35 is the length of the long hole 40. Distance slide is possible. The spring 37 wound around the inner cylinder 33 between the outer cylinder 35 and the holding plate 5 applies elasticity to the outer cylinder 35 and the holding plate 5, and a screw 39 fixed to the outer cylinder 35 is provided with the inner cylinder 33. The outer cylinder 35 is set at a position covering the inner cylinder 33 and is in a state in which the inner cylinder 33 is accommodated.

Here, when the mold holder 4a is engaged with the grip portion 2a of the mold switch 1a in order to remove the monopolar mold switch, the operator holds the mold holder 4a in the direction indicated by the arrow in FIG. When the tip is pressed against the grip portion 2 a, the pin 32 hits the edge of the outer cylinder 35 and slides the outer cylinder 35 in the direction in which the spring 37 contracts. For this reason, as shown in FIG. 4, the pin 32 enters a notch 34 of the inner cylinder 33. Here, when the operator rotates the head portion 33a of the mold holder 4a in the clockwise direction, the inner cylinder 33 and the outer cylinder 35 rotate together, so the pin 32 is the end of the notch 34 of the inner cylinder 33. At the same time, it is fitted into the notch 36 of the outer cylinder 35. As a result, as shown in FIG. 5, the outer cylinder 35 is in a state in which the outer cylinder 35 slides to the grip portion 2 a side by the force of the spring 37 and completely covers the grip portion 2 a and the inner tube 33. The pin 32 does not come off, and the mold switch 1a can be firmly held by the mold holder 4a.
Note that the above-described configuration is not necessary as long as the grip portion and the holder are completely engaged.
In FIG. 1 again, the three mold holders 4a, 4b, 4c are respectively held in parallel through the openings provided in the holding plate 5. These mold holders 4a, 4b, and 4c are engaged with the corresponding grip portions 2a, 2b, and 2c as described above, so that the plurality of single-pole mold switches 1a, 1b, and 1c can be brought together. It becomes possible to hold.
The holding plate 5 may not be plate-shaped as long as the holding plate 5 has a shape and material capable of holding the plurality of single-pole mold switches 1a, 1b, and 1c in a lump. In the illustrated example, the holding bar 5 is fixed to the holding bar support plates 6a and 6b by means such as welding, but the holding bar support plates 6a and 6b are not provided. The inverted U-shaped pin may be directly fixed to the holding plate 5.

  Next, the shaft 8 has a long hole 11 formed in the length direction thereof, and a pin 12 provided in a first diagonal portion (described later) of the link mechanism 31 is passed through the long hole 11 in the length direction. It is slidably supported. As described above, the tip portion 9 of the shaft 8 facing the holding plate 5 holding the mold holders 4a, 4b, 4c has a notch 10, and the notch 10 is hooked on the gripping rod 7 during use. Then, the shaft 8 is connected to the holding plate 5.

The link mechanism 31 includes four pairs of long bar members (hereinafter referred to as long bars) 19a to 22a and 19b to 22b, two pairs of short bar members (hereinafter referred to as short bars) 23a, 24a, 23b and 24b, and these The pins 12 to 18 for connecting the rod-shaped members are configured as follows.
First, the four long bars 19a to 22a are assembled into a parallelogram, and the corners of the parallelogram are connected by pins 12 to 15. Further, the long bars 19b to 22b paired with the long bars 19a to 22a are connected by the pins 12 to 15 so as to form a parallelogram having the same shape on the opposite side across the shaft 8.

  In the parallelogram, one end of each of the two short bars 23a and 24a is connected to the end opposite to the tip 9 of the shaft 8 by the pin 16, and the other ends of the short bars 23a and 24a are connected. Are connected to intermediate portions of the long bars 19a and 20a via pins 17 and 18 so as to form a small parallelogram that shares one corner and two sides with the parallelogram. Further, the two short bars 23b and 24b paired with the short bars 23a and 24a are connected by the pins 16 to 18 so as to form a parallelogram having the same shape on the opposite side across the shaft 8.

  The corners shared by the two parallelograms are connected to the pair of support arms 25a and 25b via the pins 12. The support arms 25a and 25b are fixed to the pair of substrates 26a and 26b by means such as welding. Therefore, the shaft 8 is supported to be slidable by the length of the long hole 11 with the pin 12 at the corner shared by the two parallelograms as a fulcrum. The other end of the shaft 8 is connected by a pin 12 to a first diagonal portion which is a diagonal portion of a small parallelogram shared with the outer parallelogram.

  One end of the handle 27 is connected by a pin 29 between the pair of substrates 26a and 26b, so that the handle 27 is rotatably supported with the pin 29 as a fulcrum. The handle 27 may be configured to be detachable from the substrate by allowing the pins 29 to be inserted and removed.

  Further, the intermediate portion of the handle 27 is provided with a pin 14 provided at a second diagonal portion that is a diagonal of the corner portion shared with the inner parallelogram in the outer parallelogram forming the link mechanism 31 as a fulcrum. It contacts with the rotating roller 30 as follows. Further, a handle 28 is provided at the free end of the handle 27.

  The handle 27 is preferably formed in an S shape so as to contact the roller 30 of the link mechanism 31 and apply only a force in the length direction to the shaft 8.

Next, functions of the controller device 3 will be described with reference to FIGS. 6, 7, and 8.
As shown in FIG. 6, the operating device 3 is supported by the cabinet 41 by applying the tips of the substrates 26 a and 26 b to the recess 42 at the upper end of the cabinet 41 that houses the three single-pole mold switches 1 a to 1 c. Use in the state.
First, when the single-pole mold switches 1a to 1c are pulled out from the mold receiver 48 of the cabinet 41, the handle 27 is located inside the outer parallelogram forming the link mechanism 31, that is, between the long bars 21a and 21b and 22a. 6 and 22b, and arranged so as to contact the left side of the roller 30 as shown in FIG.
In FIG. 6, when the handle 27 is rotated to the right, the force is transmitted to the link mechanism 31 via the roller 30 by the action of “lever” with the pin 29 as a fulcrum. The large parallelogram of the link mechanism 31 is deformed to extend rightward as shown in FIG. 7, and the inner parallelogram is similarly deformed. Therefore, the force of the handle 27 is amplified and applied to the shaft 8. The shaft 8 is slid rightward. The force that moves the shaft 8 is transmitted to the mold holders 4a, 4b, and 4c via the holding plate 5 connected to the tip portion thereof, and the force that pulls out the monopolar mold switches 1a, 1b, and 1c to the right. It becomes.
Through the series of operations described above, as shown in FIG. 8, a plurality of single-pole mold switches 1a, 1b, and 1c can be extracted at a time with a small force.
This operating device 3 is used not only to remove the single-pole mold switches 1a, 1b, 1c but also to install them.
That is, when the single pole mold switches 1a, 1b, and 1c are pushed into the mold receiver 48 of the cabinet 41, the handle 27 is moved outside the parallelogram of the link mechanism 31 (as shown in FIG. Place it on the right) and use it. In the figure, by applying a leftward force to the handle 27, the link mechanism 31 is deformed so as to contract to the left, and the shaft 8 is slid leftward. The force is transmitted to the mold holders 4 a, 4 b, 4 c through the holding plate 5, and becomes a force for pushing the single pole mold switches 1 a, 1 b, 1 c into the cabinet 41. Thereby, single pole mold switch 1a, 1b, 1c can be pushed in collectively.

Next, another embodiment of the present invention will be described with reference to FIG. 10, FIG. 11 and FIG.
As described above, when pulling out a plurality of single-pole mold switches at once, there are cases where the lock pins that hold the single-pole mold switches in the cabinet interfere with each other and cannot be pulled out at the same time. In such a case, instead of the holding plate 5 and the mold holders 4a, 4b, 4c held by the holding plate 5, the holding means 44 shown in FIG. 11 and the mold holders 45a, 45b, 45c held by the holding means 44 are shown. By using this, it is possible to pull out a plurality of single-pole mold switches 1a, 1b, and 1c in a lump without the lock pins interfering with each other.

In the illustrated example, only the portion of the center mold holder 45 b of the plate-like holding means 44 has a shift in the U-shape, and the center mold holder 45 b is also perpendicular to the holding means 44. The structure can be shifted in the direction. A spring 43 having a repulsive force is installed between the head portion 47 and the holding means 44 of the mold holder 45b.
The mold holders 45a to 45c are longer than the mold holders 4a to 4c by the extent to which the mold holder 45b is displaced. Since each mold holder 45a-c is the same structure, the one is demonstrated.
The mold holder 45 a includes an inner cylinder 49, an outer cylinder 50, and a spring 51.
The inner cylinder 49 has a head portion 47 similar to the head portion 33a and a stopper ring 46. Further, the inner cylinder 49 is longer than the inner cylinder 33 by a range in which the mold holder 45b is displaced. In other parts, the inner cylinder 49 has the same structure as the inner cylinder 33.
The outer cylinder 50 has the same structure as the outer cylinder 35.
The spring 51 abuts the stopper ring 46 at one end and the outer cylinder 50 at the other end, and applies elasticity to the stopper ring 46 and the outer cylinder 50.
As shown in FIG. 10, the stopper ring 46 has a function as a stopper that prevents the mold holder 45 b from coming off in the right direction by the force of the spring 43 in the central mold holder 45 b.

The center mold holder 45b is aligned with the mold holders 45a and 45c on both sides by the spring 43 before the single-pole mold switches 1a, 1b, and 1c are pulled out. When pulling out the single pole mold switches 1a, 1b, 1c, as shown in FIG. 12, the mold holders 45a and 45c on both sides move to the right in front of the center mold holder 45b, whereas the mold holders 45a and 45c move to the right. The holder 45b moves with a delay by contracting the spring 43.
According to this embodiment, since one mold switch 1b can be pulled out later than the other mold switches 1a and 1c, interference of the lock pin can be avoided.

The perspective view which shows the structure of one Example of this invention. The disassembled perspective view which shows the structure of the engaging part of a monopolar mold switch and a mold holder. The figure which shows the assembly state of the mold holder of FIG. The figure which shows the state at the time of engaging the mold holder of FIG. The figure which shows the state at the time of engagement of the mold holder. The side view which shows the state before performing extraction of the monopolar mold switch using the apparatus of the Example of FIG. The side view which shows the state after drawing | extracting out a single pole mold switch using the apparatus of the Example. The top view of the state of FIG. The side view which shows the state before pushing in a single pole mold switch using the apparatus of the Example. The top view which shows the state before performing extraction of a monopolar mold switch using the holding means of another Example. The upper perspective view which shows the holding means of the Example. The top view which shows the state after drawing | extracting out a single pole mold switch using the holding means of the Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1a-1c ... Single pole mold switch, 2a-2c ... Grab part, 3 ... Removal operation apparatus of single pole mold switch, 4a-4c ... Mold holder, 5 ... Holding plate, 6a-6b ... Grab stick Support plate, 7 ... grip rod, 8 ... shaft, 9 ... tip, 10 ... notch, 11 ... long hole, 12-18 ... pin, 19a-22a, 19b-22b ... long rod, 23a, 23b, 24a , 24b ... short bar, 25a, 25b ... support arm, 26a, 26b ... substrate, 27 ... handle, 28 ... handle, 29 ... pin, 30 ... roller, 31 ... link mechanism, 32 ... pin, 33 ... inner cylinder, 33a ... head portion, 34 ... notch, 35 ... outer cylinder, 36 ... notch, 37 ... spring, 38 ... screw hole, 39 ... screw, 40 ... long hole, 41 ... cabinet, 42 ... recess, 43 ... spring, 44 ... holding means, 45a-45c ... mode De retainer 46 ... stopper ring, 47 ... head section, 48 ... receiving mold, 49 ... inner cylinder, 50 ... outer cylinder, 51 ... spring.

Claims (5)

An operating device used for removing a plurality of single-pole mold switches each having a grip part,
A plurality of mold holders engaged with the grips of each single-pole mold switch;
Holding means for arranging and holding the mold holders in parallel;
One end connected to the holding means, a shaft movable in the length direction,
An apparatus for removing and operating a monopolar mold switch, comprising a handle that is rotatably supported with one end as a fulcrum and that acts as a lever at the other end of the shaft. The operating device according to claim 1, further comprising a link mechanism for causing the handle to act on the other end of the shaft,
In the link mechanism, both ends of the four rod-shaped members are rotatably connected to form a parallelogram, and one end of each of the two rod-shaped members is rotatably connected to the inside of the parallelogram. The other end of each of the parallelograms is pivotally connected to the adjacent two sides of the parallelogram so as to form a small parallelogram sharing one corner and two sides with the parallelogram. And
The shaft has a long hole that is slidable in the length direction with a corner shared by the two parallelograms as a fulcrum, and the other end of the shaft is the corner of the small parallelogram Connected to the first diagonal that is the diagonal of the shared corner,
The handle abuts against a second diagonal portion that is a diagonal of the shared corner portion in the outer parallelogram of the two parallelograms, and the second diagonal portion is moved. A detachable operation device for a monopolar molded switch. The operating device according to claim 2,
The detachable operation device for a monopolar mold switch, wherein the link mechanism has a roller that rotates in contact with the handle at the second diagonal portion. The operating device according to claim 1, 2, or 3,
The detachable operation device for a monopolar mold switch, wherein the handle is made of a substantially S-shaped bar-shaped member. The operating device according to any one of claims 1 to 4,
The holding means holds the plurality of mold holders so that some of them move in a shifted manner with respect to the other mold holders.

Images