JP2019154093A - Frame for mobile cable - Google Patents

Abstract

To provide a frame for mobile cables, the head of which can be held at a desired height, and which can further reduce workload, so that a worker can easily touch the cable head at that height.SOLUTION: A frame comprises: a base 2 that is put on the ground G; support posts 3 and 4 that are separately installed on the base 2 in a standing manner; a crosspiece 11 that is suspended at the ends of the support posts 3 and 4, where at least one of the head of a mobile cable and a support insulator connected through the head and a lead wire is latched; and reinforcement members 12-15, one end and the other end of each of which are connected to the base 2 and the support post 3 or 4, respectively. The support posts 3 and 4 respectively comprise: fixed posts 5 and 6 including base ends 3b and 4b, respectively; movable posts 7 and 8 including the base ends 3b and 4b, moving up and down along the fixed posts 5 and 6, respectively; and first lifting means 9 and 10 in which the movable posts 7 and 8 are liftably fastened to the fixed posts 5 and 6, respectively.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a moving cable pedestal for supporting a moving cable during temporary power supply countermeasure work, etc., and in particular, holds the cable head from the ground at a desired height while reducing the burden on the operator. The present invention relates to a movable cable mount.

Conventionally, when carrying out replacement work accompanying equipment aging or temporary supply countermeasure work accompanying equipment failure, power may be supplied using a moving cable.
Specifically, for example, a special high voltage moving cable is used to connect to a high place such as a transformer primary bushing. However, since the conventional mobile cable stand is not assumed to be connected to a high place, the height of the base for fixing the cable head is about 2 m at the maximum. For this reason, it is difficult to connect the extra high voltage moving cable to a transformer primary bushing having a height higher than this.
In order to solve such problems, currently, a temporary mount using a scaffold or a single pipe is used. However, in this case, since the material is transported and preparatory work is performed, the work load increases, the construction period becomes longer, and the cost increases.
Therefore, in recent years, a technique capable of reducing the work burden has been developed, and several inventions have already been disclosed in this regard.

Patent Document 1 discloses an invention relating to a mounting device that holds a moving power cable at an arbitrary height position under the name of “moving power cable mounting device”.
Hereinafter, the invention disclosed in Patent Document 1 will be described. The invention disclosed in Patent Document 1 includes a bracket that is attached to and detached from an assembly base, and a clamp that is detachably attached to an arbitrary portion of the bracket and holds a power cable for movement. The movable bracket is capable of displacing its longitudinal position.
In the invention having such a feature, a clamp is detachably attached to the movable bracket, and the movable power cable is held at an arbitrary height position by the clamp. Furthermore, the movable bracket freely moves in the vertical direction and other directions. Therefore, the power cable for movement can be set so as to be movable forward and backward at optimal positions in the vertical, horizontal and diagonal directions with respect to the assembly table.

Next, Patent Document 2 discloses an invention relating to a pedestal for a moving power cable under the name “a pedestal for a moving power cable and a pedestal installation and removal method for a moving power cable”.
Hereinafter, the invention disclosed in Patent Document 2 will be described. The invention disclosed in Patent Document 2 includes a base that is installed on the ground and a column that is fixed to the base and extends upward, and that supports the weight of the cable head included in the moving power cable, and the base Is attached to the column body that is rotatable around the horizontal axis and changes the height by rotation. The turntable is equipped with a bracket for mounting the cable head, and the rotation range of the turntable. And a restricting portion that restricts the mounting position to be mounted on the bracket, and a use position that places the cable head in a vertical use state, and a fixing portion that fixes the turntable to the use position. And
In the invention having such a feature, by rotating the turntable to be horizontal, the cable head is attached to a bracket located at a relatively low place, and then the turntable is rotated along the vertical direction. Thus, the cable head is configured to be lifted to a high place. Therefore, by setting the turntable to a required length, the moving power cable can be lifted to a desired height. Therefore, the burden of work for installing the power cable for movement on the gantry can be reduced without increasing the occupation area of the apparatus.

JP 2007-104882 A JP 2013-93940 A

  In the invention disclosed in Patent Document 1, by moving the movable bracket, it is possible to eliminate the burden of moving the moving power cable forward and backward. However, since it is considered that the movable bracket is moved manually, it is difficult to move the cable head to a height of 2 m or more unless the operator uses a separate workbench or scaffold. It cannot be said that the problem can be solved sufficiently.

Next, in the invention disclosed in Patent Document 2, since the turntable is first inclined in the horizontal direction, it is easy to attach the cable head to the bracket, but some installation space is required. However, since the land area of the power generation / substation is usually kept to a minimum, the equipment interval is designed to be narrow. Therefore, particularly when the length of the turntable is desired to be several meters or more, there is a fear that the installation space in the horizontal direction is insufficient and the mount cannot be installed. In other words, the installation location is limited, and there is a risk of lacking versatility.
Even when the installation space can be secured, since a separate scaffolding for placing the worker at a high place is necessary, the burden of preparation work and the like remains unreduced. Therefore, even in the invention disclosed in Patent Document 2, it cannot be said that the conventional problem can be sufficiently solved.

  The present invention has been made in response to such a conventional situation, and can hold the head of the moving cable at a desired height, and does not assemble a scaffold or the like separately. Therefore, an object of the present invention is to provide a movable cable mount that can further reduce the work load.

  In order to achieve the above object, a first invention is a moving cable pedestal for holding a moving cable in a desired position, and a base installed on the ground and the base are spaced apart from each other. A plurality of upright columns, a pedestal to which at least one of the head of the moving cable and the support insulator connected to the head via a lead wire is suspended, which is suspended between the ends of the plurality of columns; One end and the other end are connected to the base and the plurality of columns, respectively, and include a plurality of reinforcing members that support the plurality of columns in an auxiliary manner. The column includes a fixed column including the base end, a distal end, and a fixed column. And a first elevating means for fixing the movable column so as to be movable up and down with respect to the fixed column.

In the invention with such a configuration, for example, the fixed column and the movable column have U-shaped cross sections, so that the movable column is accommodated in the fixed column and the first lifting means is moved along the movable column. It is conceivable that the slider slides up and down. The first lifting means includes a hydraulic control device that is fixed inside the fixed column and supports the lowermost part of the movable column, a worm wheel installed on the fixed column, and a worm wheel that is attached to the movable column and meshes with the worm wheel. Manual or electric operation means such as a worm that rotates and a handle or motor that rotates the worm wheel are used.
In the invention of the above configuration, for example, after setting the lengths of the plurality of support columns in the shortest state in advance, the base is installed on the ground adjacent to the transformer, and the head of the moving cable is further attached to the tip of the support column. The head of the moving cable is held at a desired height by being locked to the suspended base and raising the movable column by the first lifting means. At this time, one end and the other end are respectively connected to the base and the support column, and the plurality of support columns are supplementarily supported by the reinforcing members that are installed to be inclined with respect to the base. Even when the cable is held, the column can be prevented from tilting or falling.
In addition to the head of the moving cable, a support insulator for connecting the head via a lead wire may be installed on the pedestal. The supporting insulator is connected to the primary bushing of the transformer and the bushing of the circuit breaker via the second lead wire.

Next, according to a second aspect, in the first aspect, a work floor that moves up and down along the fixed columns is provided between the plurality of fixed columns, and the plurality of work floors are provided on the plurality of fixed columns, respectively. The second lifting means is held so as to be movable up and down with respect to the fixed column.
In the invention having such a configuration, as the second lifting means, for example, hydraulic control means respectively installed on a plurality of fixed columns can be considered. This 2nd raising / lowering means is each connected with a pair of end surface of the work floor facing this.
In the invention of the above configuration, in addition to the action of the first invention, the second lifting means is driven so that the work floor on which the worker is previously placed follows the height position of the head of the moving cable. Go up and down.

Subsequently, according to a third invention, in the second invention, the support column is provided with a standing member that detachably stands the base end with respect to the installation portion provided on the end surface side of the base, and the reinforcing member is, A first fixing member that removably fixes one end to the fixing portion provided on the end surface of the base, and a second fixing that rotatably fixes the other end to the rotation shaft provided to the fixed column. A member is provided.
In the invention of such a configuration, in addition to the action of the second invention, the support column and the reinforcing member are both detachable via the standing member and the first and second fixing members. Only when the moving cable mount is used, the support column and the reinforcing member can be attached to the base. In addition, the column and the reinforcing member can be removed from the base during other storage and movement.
Among these, since the second fixing member fixes the other end of the reinforcing member to be rotatable, the reinforcing member is parallel to the supporting column when the supporting column and the reinforcing member are removed from the base.

  Further, in a fourth invention according to the second or third invention, a connecting means is provided above the second elevating means, and the connecting means is a cylindrical member whose major axis is arranged along the horizontal direction. And a pair of insertion holes penetrating the short axis of the cylindrical member along the horizontal direction, and a fastening member into which the front end and the rear end are respectively inserted into the pair of insertion holes. Each having a shaft body inserted into the cylindrical member, the shaft body having first and second through-holes through which the fastening member can pass, arranged at a distance along the longitudinal direction of the shaft body, The first through hole is penetrated in parallel to the floor surface of the work floor, and the second through hole is penetrated perpendicular to the floor surface.

In the invention having such a configuration, a bolt and a nut screwed into the bolt can be considered as the fastening member constituting the connecting means. In addition, “inserted through either the first or second insertion hole” means that the fastening member is inserted into either the first or second insertion hole at a different timing.
In the invention of the above configuration, in addition to the operation of the second or third invention, the shaft bodies protruding from both end faces of the work floor are always inserted into the annular member of the connecting member. When the work floor is used, the fastening member passes through one insertion hole of the cylindrical member, the first through hole of the shaft body, and the other insertion hole of the cylindrical member, and is fixed so as not to fall off. . Here, the pair of insertion holes are provided along the horizontal direction, and the first through hole is penetrated in parallel to the floor surface of the work floor, so that the fastening member is fixed so as not to fall off. And the floor surface along a horizontal direction is hold | maintained by a fixed pillar.

On the other hand, when the work floor is not used, the fastening member passes through one insertion hole of the cylindrical member, the second through hole of the shaft body, and the other insertion hole of the cylindrical member, and cannot be dropped off. Fixed to. Here, since the second through-hole is penetrated perpendicularly to the floor surface of the work floor, when the fastening member is fixed so as not to fall off, the floor surface along the vertical direction is held by the fixing column. Is done.
In addition, the selection of the 1st through-hole and the 2nd through-hole at the time of inserting a fastening member is because the 1st and 2nd through-holes are arranged at a distance along the longitudinal direction of the shaft body. This is done by sliding the work floor along the horizontal direction.

And in 5th invention, in any one of 1st thru | or 4th invention, it is provided with the fall prevention means which prevents the fall of a support | pillar, and this fall prevention means has one end part connected to several fixed pillars, respectively. It is characterized by comprising a plurality of elongated portions and a ground installation portion that is suspended from the other ends of the plurality of elongated bodies and installed on the ground.
In the invention having such a configuration, the load of the moving cable and the worker is applied to the ground installation part via the plurality of long parts. As a result, a frictional force is generated between the ground installation unit and the ground, and the ground installation unit is prevented from moving on the ground. In other words, since the support column in which the plurality of long portions are erected is supplementarily supported, the support column can be prevented from falling.

In addition, the sixth invention is characterized in that the pedestal includes a bracket on which the head of the moving cable is locked, and a fixing base on which the support insulator is fixed through fixing means.
In the invention having such a configuration, both the head of the moving cable and the support insulator are held by the pedestal, but the head and the support insulator do not necessarily have to be held simultaneously. This is because the support insulator is used to hold the lead wire when the lead wire connecting between the head and the bushing such as a transformer has a certain length or more. The fixing base is, for example, a portion of the pedestal where the bolt hole is provided, and the fixing means in this case is a bolt inserted into the bolt hole and a nut screwed into the bolt.

  According to the first aspect of the present invention, since the lengths of the plurality of support columns are set to the shortest in advance at a low place near the ground, the moving cable head is locked to the pedestal. The head can be attached to the pedestal. Thereafter, the movable column is lifted by the first elevating means, so that the head of the moving cable is held at a desired height, so that it is not necessary to assemble a scaffold or the like as in the prior art. Therefore, it is possible to reduce work load and time for preparing materials and assembling them in preparation work. At this time, even if the moving cable, which is a heavy object, is held by the reinforcing member, the support column can be prevented from tilting or falling, so that the safety of the worker can be ensured.

  According to the second invention, in addition to the effect of the first invention, the work floor on which the worker is previously placed follows the height position of the head of the moving cable by the work floor and the second lifting means. Since it moves up and down, an operator can easily contact the head and the support insulator at a high place. Therefore, it is possible to further reduce the burden when the moving cable and the supporting insulator or bushing are connected and separated by the lead wire.

  According to the third invention, in addition to the effect of the second invention, the movable cable gantry is assembled and used only when necessary by including the standing member and the first and second fixing members. Can do. Therefore, the mobile cable mount can be installed in a short time not only for temporary power supply construction but also for emergency recovery. In addition, storage space when not in use is small, and transportation is easy.

  According to the fourth invention, in addition to the effects of the second or third invention, the floor of the work floor is changed along the horizontal or vertical direction by sliding the work floor along the horizontal direction. be able to. Therefore, when separating the support and reinforcing member from the base, the work floor can be tilted in the same direction as the support, etc., so that the mobile cable mount can be stored compactly when not in use. It is.

  According to the fifth aspect of the invention, in addition to the effects of any one of the first to fourth aspects of the invention, the fall prevention means prevents the column from falling down. Riding can prevent accidents reliably when the center of gravity is located at a high place, and is particularly effective.

  According to the sixth invention, in addition to the effects of any one of the first to fifth inventions, since the bracket and the fixed base are provided on the base, it is possible to hold both the head of the moving cable and the support insulator. It is.

It is a perspective view which shows the external appearance of the mount for mobile cables which concerns on an Example. (A) is the A direction arrow directional view in FIG. 1 of the base end of the support | pillar which comprises the mobile cable mount which concerns on an Example, (b) is a figure of the end of the reinforcement member which comprises the mobile cable mount. FIG. (A) is the A direction arrow directional view in FIG. 1 of the other end of the reinforcement member which comprises the mobile cable mount which concerns on an Example, (b) is the C direction arrow directional view in (a) of the other end. is there. It is a perspective view which shows the connection means which comprises the mount for moving cables based on an Example, and the shaft body of a work floor. (A) is a B direction arrow directional view in FIG. 1 of the work floor which comprises the mount for moving cables which concerns on an Example, (b) is centering on the axis of the direction of the work floor displayed by (a). It is a B direction arrow directional view of the state rotated 90 degree as. (A) is the B direction arrow directional view in FIG. 1 of the base which comprises the mount for moving cables which concerns on an Example, (b) is a perspective view of the same base. (A) is the B direction arrow view in FIG. 1 of the bracket and fixed base which comprise the mount for moving cables which concern on an Example, (b) is the C direction arrow in (a) of the bracket and fixed base. FIG. (A) And (b) is a front view for demonstrating the raising / lowering effect | action of the support | pillar which comprises the mobile cable mount which concerns on an Example, respectively. It is a use state figure of the mount for mobile cables which concerns on an Example. It is a use state figure of the mount for mobile cables which concerns on an Example. It is a perspective view at the time of the fall prevention means being added to the mobile cable mount which concerns on an Example.

A mobile cable mount according to an embodiment of the present invention will be described in detail with reference to FIGS. FIG. 1 is a perspective view illustrating an appearance of a movable cable mount according to the embodiment.
As shown in FIG. 1, the moving cable pedestal 1 according to the embodiment is a moving cable pedestal for holding the moving cable 50 (see FIGS. 9 and 10) at a desired position.
The moving cable pedestal 1 includes a base 2 installed on the ground G, a plurality of support columns 3 and 4 erected on the base 2 with a space from each other, and tips 3a of the plurality of support columns 3 and 4; 4a, and a base 11 on which a head 50a of the moving cable 50 (see FIG. 7B) and a support insulator 51 connected to the head 50a via a lead wire 52 (see FIG. 9) are locked. One end 12a to 15a and the other end 12b to 15b are connected to the base 2 and the plurality of support columns 3 and 4, respectively, and include a plurality of reinforcing members 12 to 15 that support the plurality of support columns 3 and 4 in an auxiliary manner. In addition, the weight per one of the head 50a and the support insulator 51 of the moving cable 50 is about 50 kg.

The base 2 is bridged between a pair of square steel pipes 2a and 2a installed in a direction orthogonal to the longitudinal direction X of the pedestal 11 and the square steel pipes 2a and 2a, to the square steel pipes 2a and 2a. It consists of a fixed metal flat plate 2b. Therefore, the outer side surfaces of the square steel pipes 2 a and 2 a become end surfaces 2 e and 2 e of the base 2, and the end surfaces 2 e and 2 e are orthogonal to the longitudinal direction X of the base 11. Since the square steel pipe 2a and the metal flat plate 2b have thicknesses of about 4 cm and 1 cm, respectively, the surface of the metal flat plate 2b is located at a height of about 5 cm from the ground G.
The reinforcing members 12 and 13 are fixed to the support column 3 at inclination angles α and β, respectively. Although not shown in FIG. 1, the reinforcing members 14 and 15 are inclined to the support column 4. Inclined and fixed at angles α and β. Note that when the reinforcing members 12 and 13 are parallel to the column 3 and when the reinforcing members 14 and 15 are parallel to the column 4, the inclination angles α and β are both 0 degrees.

The columns 3 and 4 include fixed columns 5 and 6 including the base ends 3b and 4b, movable columns 7 and 8 including the distal ends 3a and 4a and moving up and down along the fixed columns 5 and 6, and the movable columns 7 and 4 First elevating means 9 and 10 for fixing 8 to the fixed columns 5 and 6 so as to be elevable are provided.
Each of the fixed columns 5 and 6 and the movable columns 7 and 8 is a steel material having a U-shaped cross section. Therefore, the movable columns 7 and 8 and the first elevating means 9 and 10 are accommodated in the fixed columns 5 and 6, respectively. Among these, the movable columns 7 and 8 slide in the vertical direction along the fixed columns 5 and 6 via the first elevating means 9 and 10. More specifically, the length of the fixed columns 5 and 6 is about 230 cm, and the length of the movable columns 7 and 8 is about 80 cm.

The first elevating means 9 and 10 include hydraulic cylinders 16a and 16a that are fixed inside the fixed columns 5 and 6 near the base ends 3b and 4b and support the movable columns 7 and 8, respectively, and the fixed column 5 , 6 and a hydraulic pump (not shown) for controlling the operation of the hydraulic cylinders 16a and 16a and a hydraulic hose (not shown) for connecting the hydraulic pump and the hydraulic cylinders 16a and 16a, respectively. The This hydraulic pump is on / off controlled by a switch 16b attached to the outer end surface 6a of the fixed column 6.
Specifically, the hydraulic cylinders 16a and 16a contain multistage pistons, and the maximum stroke is about 210 cm. Further, the height of the upper ends of the hydraulic cylinders 16a, 16a from the metal flat plate 2b is about 40 cm. Therefore, the minimum height of the base 11 is about 120 cm from the metal flat plate 2b, and the maximum height that can be reached is about 330 cm from the metal flat plate 2b.

Furthermore, the moving cable mount 1 includes a work floor 17 that moves up and down along the fixed columns 5 and 6 between the fixed columns 5 and 6.
The work floor 17 is a rectangular metal flat plate, and its long side is installed in parallel with the longitudinal direction of the base 11. The work floor 17 is held so as to be movable up and down with respect to the fixed columns 5 and 6 via a plurality of second lifting and lowering means 18 and 19 provided respectively on the fixed columns 5 and 6.
The second elevating means 18 and 19 include hydraulic cylinders 20a and 20a that are fixed inside the fixed columns 5 and 6 near the base ends 3b and 4b and support the work floor 17, and outside the fixed columns 5 and 6, respectively. A hydraulic pump (not shown) fixed to the surface and controlling the operation of the hydraulic cylinders 20a and 20a and a hydraulic hose (not shown) connecting the hydraulic pump and the hydraulic cylinders 20a and 20a are used. This hydraulic pump is on / off controlled by a switch 20 b attached to the outer end surface 5 a of the fixed column 5.

Specifically, the hydraulic cylinders 20a and 20a contain multistage pistons, and the maximum stroke is about 180 cm. The height of the upper ends of the hydraulic cylinders 20a, 20a from the metal flat plate 2b is about 25 cm. Therefore, the minimum height of the work floor 17 is about 30 cm from the metal flat plate 2b, and the maximum height that can be reached is about 210 cm from the metal flat plate 2b.
The first elevating means 9 and the second elevating means 18, and the first elevating means 10 and the second elevating means 19 are spaced from each other inside the fixed columns 5 and 6 so as not to interfere with each other. Each is installed.

Next, the structure of the support | pillar and reinforcement member which comprise the mobile cable mount based on an Example is demonstrated in detail, using FIG.2 and FIG.3. FIG. 2A is a view in the direction of arrow A in FIG. 1 of the base end of the support cable constituting the moving cable gantry according to the embodiment, and FIG. 2B is a diagram of the reinforcing member constituting the moving cable gantry. It is an A direction arrow directional view in FIG. 1 of one end. In addition, about the component shown in FIG. 1, the same code | symbol is attached | subjected also in FIG. 2, and the description is abbreviate | omitted.
As shown in FIG. 2A, the support column 3 includes a standing member 21 that stands upright so that the base end 3 b can be detached from the mounting portion 2 c provided on the end surface 2 e side of the base 2.
Among these, the installation part 2c is an arbitrary area on the surface of the metal flat plate 2b. Further, the standing member 21 penetrates through the flat metal piece 21 a that is in close contact with both the base end 3 b of the support column 3 and the square steel pipe 2 a of the base 2, and the metal piece 21 a and the outer end face 5 a of the fixed column 5. And a fastening member 21c that penetrates the metal piece 21a and the square steel pipe 2a. The fastening member 21b is a combination of a bolt 21B and a nut 21N that is screwed into a shaft portion of the bolt 21B. Similarly, the fastening member 21c is a combination of a bolt 21B ′ and a nut 21N ′ that is screwed into the shaft portion of the bolt 21B ′. Therefore, the column 3 is removed from the base 2 by removing one of the nuts 21N and 21N ′ of the fastening members 21b and 21c from the bolts 21B and 21B ′. Note that the column 4 also includes the standing member 21 similar to the column 3.

Further, as shown in FIG. 2B, the reinforcing member 12 includes a first fixing member 22 that removably fixes the one end 12 a to the fixing portion 2 d provided on the end surface 2 e of the base 2.
Among these, the adhering portion 2d is an arbitrary area on the end surface 2e. The first fixing member 22 is a fastening member that penetrates the one end 12a of the reinforcing member 12 and the square steel pipe 2a. The first fixing member 22 is a combination of a bolt 22B and a nut 22N that is screwed into a shaft portion of the bolt 22B. Therefore, the reinforcing member 12 is removed from the base 2 by removing the nut 22N from the bolt 22B. The reinforcing members 13 to 15 also include the first fixing member 22 similarly to the reinforcing member 12.

3 (a) is a view in the direction of the arrow A in FIG. 1 of the other end of the reinforcing member constituting the mobile cable mount according to the embodiment, and FIG. 3 (b) is in (a) of the other end. It is a C direction arrow directional view. 1 and 2 are denoted by the same reference numerals in FIG. 3 and description thereof is omitted.
As shown in FIG. 3A, the auxiliary members 12 and 13 have second fixing members 24 that rotatably fix the other ends 12 b and 13 b to the rotation shaft 23 provided on the fixed column 5. Prepare.
The rotating shaft 23 is a bolt 23B penetrating the outer end surface 5a of the fixed column 5, and a nut 23N is screwed to a shaft portion of the bolt 23B.
The second fixing members 24 are annular members 24 a and 24 b that are formed on the other ends 12 b and 13 b of the reinforcing members 12 and 13, respectively, and are engaged with the rotating shaft 23. The reinforcing members 13 to 15 also include the second fixing member 24 in the same manner as the reinforcing member 12.

As shown in FIG. 3B, the other ends 12b and 13b of the reinforcing members 12 and 13 are rotatable about the central axis of the bolt 23B as indicated by the double arrow directions X ₁ and X ₂ , respectively. . Therefore, when the nut 23N is tightened, the inclination angles α and β each have a certain size, and the reinforcing members 12 and 13 are fixed to the fixed column 5 so as not to rotate. However, when the nut 23N is loosened, the inclination angles α and β become 0 degrees, and the reinforcing members 12 and 13 are parallel to the fixed column 5, respectively.

Further, the configuration and operation of the work floor will be described in detail with reference to FIGS. 4 and 5. FIG. 4 is a perspective view showing the connecting means constituting the moving cable mount and the shaft of the work floor according to the embodiment. FIG. 5A is a view taken along the direction B in FIG. 1 of the work floor constituting the moving cable mount according to the embodiment, and FIG. 5B shows the direction of the work floor displayed in FIG. It is a B direction arrow directional view in the state rotated 90 degrees centering on a shaft object. The components shown in FIGS. 1 to 3 are denoted by the same reference numerals in FIGS. 4 and 5 and description thereof is omitted.
As shown in FIGS. 4 and 5, in the movable cable gantry 1, the connecting means 25 is provided above the second lifting / lowering means 19 of the fixed column 6.
The connecting means 25 has a cylindrical member 26 that has a long axis along the horizontal direction and parallel to the longitudinal direction X of the pedestal 11, and a short axis of the cylindrical member 26 that passes through the horizontal direction. A pair of insertion holes 27a, 27b and a fastening member 28 (see FIG. 5) into which the front end 28a and the rear end 28b are inserted through the pair of insertion holes 27a, 27b, respectively. The fastening member 28 is a combination of a bolt 28B and a nut 28N that is screwed into a shaft portion of the bolt 28B. Similarly, a connecting means 25 is also provided above the second lifting means 18 of the fixed column 5.

In addition, the work floor 17 includes shaft bodies 17 a and 17 b that are always inserted into the tubular member 26 on both end surfaces orthogonal to the longitudinal direction X of the base 11.
In the shaft body 17a, a first through hole 29a and a second through hole 29b through which the fastening member 28 can pass are arranged at a distance along the longitudinal direction of the shaft body 17a. Among these, the 1st through-hole 29a is penetrated in parallel with respect to the floor surface 17c of the work floor 17, and the 2nd through-hole 29b is penetrated orthogonally with respect to the floor surface 17c. The shaft body 17b is similar to this.
However, in the shaft body 17a, the second through hole 29b and the first through hole 29a are provided in this order from the side closer to the floor surface 17c of the work floor 17. In the shaft body 17b, the first through hole 29a and the second through hole 29b are provided in this order from the side closer to the floor surface 17c.

Therefore, as shown in FIG. 5A, in the shaft body 17a, the fastening member 28 passes through the insertion holes 27a, 27b and the first through hole 29a of the cylindrical member 26, and is fixed so as not to fall off. In the shaft body 17b, when the retaining member 28 passes through the insertion holes 27a and 27b and the first through hole 29a and is fixed so as not to fall off, the floor surface 17c becomes horizontal and the connecting means 25 and 25 and the second It is hold | maintained so that raising / lowering is possible with respect to the fixed pillars 5 and 6 via the raising / lowering means 18 and 19. FIG.
On the other hand, as shown in FIG. 5B, in the shaft bodies 17a and 17b, the fastening members 28 and 28 pass through the insertion holes 27a and 27b and the second through holes 29b and 29b, respectively, and are fixed so as not to fall off. Then, the work floor 17 rotates 90 degrees around the shaft bodies 17a and 17b as shown in FIG. 5A, and the floor surface 17c extends along the vertical direction so that the fixed columns 5 and 6 are fixed. Is held up and down.
The selection of the first through hole 29a and the second through hole 29b when inserting the fastening member 28 is performed by moving the work floor 17 along the longitudinal direction of the shaft bodies 17a and 17b, that is, along the longitudinal direction X of the base 11. This is done by sliding horizontally.

And the structure of the base suspended from the front-end | tips of a support | pillar is demonstrated in detail, using FIG.6 and FIG.7. FIG. 6A is a perspective view of the pedestal constituting the moving cable mount according to the embodiment in the direction of the arrow B in FIG. 1, and FIG. 6B is a perspective view of the pedestal. FIG. 7A is a view taken in the direction of the arrow B in FIG. 1 of the bracket and the fixed base constituting the mobile cable mount according to the embodiment, and FIG. 7B is the same of the bracket and the fixed base. FIG. The components shown in FIGS. 1 to 5 are denoted by the same reference numerals in FIGS. 6 and 7 and the description thereof is omitted.
As shown in FIGS. 6A and 6B, the pedestal 11 that moves up and down along the vertical direction V is suspended between the tips 3 a and 4 a of the columns 3 and 4, that is, between the tips of the movable columns 7 and 8. The cross section is a U-shaped steel material. In the ceiling surface 11a of the base 11, three sets of a plurality of fixing holes 11b for inserting fixing means for fixing the support insulator 51 (see FIG. 1) are formed.

As shown in FIGS. 7A and 7B, the base 11 includes a ring-shaped bracket 30 to which the head 50a of the moving cable 50 is locked, and a screw body 32 to which the support lever 51 is a fixing means. And a support base 33 to which the bracket 30 is fixed via a screw body (not shown).
Among them, the fixing base 31 has a plurality of fixing holes 31a formed at positions corresponding to the three sets of fixing holes 11b (see FIG. 6), and is screwed into a screw hole provided at the bottom of the support lever 51. The body 32 can be inserted. The support 33 is supported by the fixed base 31 via a bolt 33B and a nut 33N screwed to the shaft portion of the bolt 33B.

Further, the operation of the movable cable mount 1 will be described in detail with reference to FIG. FIG. 8A and FIG. 8B are front views for explaining the lifting and lowering action of the columns constituting the movable cable mount according to the embodiment. The components shown in FIGS. 1 to 7 are denoted by the same reference numerals in FIG. 8 and the description thereof is omitted.
FIG. 8 (a) shows that the operating floor 17 is moved by moving the second elevating means 18, 19 while moving the second elevating means 18, 19 while lowering the base 11 by operating the first elevating means 9, 10. It shows the state lowered to the lowest position. As described with reference to FIG. 1, the minimum height of the pedestal 11 is about 120 cm from the metal flat plate 2b, so that the worker 53 can reach the pedestal 11 while standing on the ground G and support it. The insulator 51 can be attached to the base 11.

  FIG. 8B shows a case where the base 11 is raised to the highest position and the work floor 17 is raised to the highest position. As described with reference to FIG. 1, the maximum height that the pedestal 11 can reach is about 330 cm from the metal plate 2b, and the maximum height that the work floor 17 can reach is about 210 cm from the metal plate 2b. Therefore, the worker 53 can easily connect the lead wire 52 to the distal end of the support lever 51 by standing on the work floor 17 and having his or her hand reach a height higher than the raised base 11.

Next, the usage state of the mobile cable mount according to the embodiment will be described in detail with reference to FIGS. 9 and 10. FIG. 9 and FIG. 10 are diagrams showing how the mobile cable mount according to the embodiment is used. The components shown in FIGS. 1 to 8 are denoted by the same reference numerals in FIGS. 9 and 10, and the description thereof is omitted.
As shown in FIG. 9, one moving cable mount 1 is installed adjacent to the circuit breaker 54. The head 50 a of the moving cable 50 locked to the pedestal 11 of the moving cable mount 1 and the bushing 54 a of the circuit breaker 54 are connected by a lead wire 52. Since the tip of the bushing 54a is about 200 cm from the ground G, the height of the lead wire 52 can be increased by setting the height from the ground G of the pedestal 11 in the movable cable mount 1 to 200 cm. Can be made as short as possible. Further, the lead wire 52 and the bushing 54a are connected by an operator 53 (not shown in FIG. 9) using a stepladder or the like.

As shown in FIG. 10, two moving cable mounts 1 a and 1 b are adjacent to the transformer 55 and installed side by side. The configurations of the moving cable mounts 1a and 1b are the same as those of the moving cable mount 1.
The head 50a of the moving cable 50 locked to the pedestal 11 of the moving cable pedestal 1a and the support insulator 51 fixed to the pedestal 11 of the moving cable pedestal 1b are connected by a lead wire 52a. Further, the support insulator 51 and the primary bushing 55a of the transformer 55 are connected by a lead wire 52b. Note that the lead wire 52b and the primary bushing 55a are connected when an operator 53 (not shown in FIG. 10) climbs the ceiling surface of the transformer 55.
Further, since the tip of the primary side bushing 55a is about 370 cm from the ground G, the head 50a of the moving cable 50 held on the moving cable mount 1a and the primary side bushing 55a are shown in FIG. In order to connect directly with one lead wire 52 as shown, this lead wire 52 needs to be set long. In this case, as described above, since the lead wire 52 is likely to be wobbling, the other moving cable pedestal 1b is disposed between the transformer 55 and the moving cable pedestal 1a in order to prevent this. .

In the moving cable mount 1a, the height of the base 11 is about 230 cm from the ground G. On the other hand, in the movable cable mount 1b, the height of the base 11 is about 270 cm from the ground G. The lengths of the head 50a and the supporting insulator 51 are both about 90 cm.
Therefore, the length of each of the lead wires 52a and 52b can be made shorter than the length of the lead wire 52 when the head 50a of the moving cable 50 and the primary side bushing 55a are directly connected by the lead wire 52.

Furthermore, the fall prevention means used simultaneously with the moving cable mount 1 of the embodiment will be described in detail with reference to FIG. FIG. 11 is a perspective view in the case where a fall prevention means is added to the moving cable mount according to the embodiment. In addition, about the component shown in FIG. 1 thru | or FIG. 10, the same code | symbol is attached | subjected also in FIG. 11, and the description is abbreviate | omitted.
As shown in FIG. 11, the moving cable gantry 1 is provided with an overturn prevention means 34 for preventing the columns 3 and 4 from overturning.
The fall prevention means 34 includes a plurality of long bodies 35, 35 having one end 35a, 35a coupled to the plurality of fixed columns 5, 6, respectively, and the other end of the plurality of long bodies 35, 35. 35b and 35b are suspended from each other, and comprise a ground installation portion 36 installed on the ground G.

Specifically, the long body 35 is a steel material, and the ground installation part 36 is a metal flat plate. One end 35a, 35a is a fixed column via metal pieces 35c, 35c, and bolts and nuts (not shown) penetrating the metal pieces 35c, 35c and the front end surfaces 5b, 6b of the fixed columns 5, 6. 5 and 6 are fixed. Similarly, the other end portions 35b and 35b are fixed to the surface of the ground installation portion 36 via metal pieces 35d and 35d and bolts and nuts (not shown).
In addition, a concavo-convex surface (not shown) is formed on the back surface of the ground installation portion 36 that is in close contact with the ground G, and the frictional force between the ground installation portion 36 and the ground G can be increased by the concavo-convex surface. May be.

A method for assembling and installing the mobile cable mount 1 having the above-described configuration will be described below. First, the base 2 is installed on the side ground G such as the circuit breaker 54. Next, the fixed columns 5 and 6 in which the pedestal 11 has been lowered to the lowest height are erected on the base 2 by the erecting member 21. Further, the reinforcing members 12 to 15 are fixed to the fixing columns 5 and 6 and the base 2 by the first fixing member 22 and the second fixing member 24, respectively. Then, the head 50a and the support insulator 51 of the moving cable 50 are selected and appropriately locked or fixed to the bracket 30 and the fixed base 31 of the base 11, respectively.
After that, if necessary, the long bodies 35 and 35 of the fall prevention means 34 are fixed to the fixed columns 5 and 6, respectively, and the fall of the fixed columns 5 and 6 due to the load of the worker 53 and the moving cable 50 is prevented. good. Next, when the switch 16b is operated to raise the movable columns 7 and 8, the head 50a and the like are held at a desired height.

  In addition, when it is necessary to hold the head 50a or the like at a height of 150 cm or more from the ground G, for example, it is desirable to use the work floor 17. Therefore, before operating the switch 16b, the fastening members 28 and 28 are inserted through the insertion holes 27a and 27b of the cylindrical member 26 and the first through holes 29a of the shaft bodies 17a and 17b, respectively, and are fixed so as not to fall off. Then, the floor surface 17c of the work floor 17 is held by the fixed columns 5 and 6 in a state along the horizontal direction. Therefore, the worker 53 stands on the work floor 17 in advance, and operates the switch 20b attached to the outer end surface 5a of the fixed column 5 to raise the work floor 17 to an appropriate height. Then, since the hand easily reaches the head 50a and the like, the head 50a and the bushing such as the circuit breaker 54 can be connected via the lead wire 52.

When the temporary power supply construction work or the like is completed, the fixed columns 5 and 6, the reinforcing members 12 to 15, and the tipping prevention means 34 are removed from the base 2 and the fixed columns 5 and 6 by a procedure reverse to the above. As a result, the reinforcing members 12 to 15 are rotated about the rotation shaft 23 so that the inclination angles α and β are 0 degrees, and are in parallel with the fixed columns 5 and 6.
After that, when the fastening members 28, 28 are passed through the insertion holes 27a, 27b and the second through holes 29b of the shaft bodies 17a, 17b and fixed so as not to fall off, the floor surface 17c of the work floor 17 is fixed to the fixed columns 5, 6 It is held non-rotatable in a parallel state. Accordingly, since the fixed columns 5 and 6 and the work floor 17 have a vertically long shape in a side view, the movable cable mount 1 can be accommodated in a compact manner when not in use.

As described above, according to the moving cable pedestal 1 according to the embodiment, when installing or removing the moving cable pedestal 1, the base 2 and the support columns 3 and 4 can be transported separately, thereby reducing labor. be able to. Moreover, the movable cable mount 1 includes the upright member 21, the first fixing member 22, and the second fixing member 24, and can be assembled and used only when necessary.
Therefore, the mobile cable mount 1 can be installed at a desired position in a short time not only for temporary power supply countermeasure work but also for emergency recovery. It is also effective in that the storage space when not in use is small.
Furthermore, the movable cable pedestal 1 can assemble and disassemble the base 2 and the fixed columns 5 and 6 and the base 2 and the reinforcing members 12 to 15 by a simple method of tightening and tightening nuts. It is easy to handle.

  In addition, according to the moving cable pedestal 1, as shown in FIG. 8A, the head 50a and the supporting insulator 51 of the moving cable 50 are locked and fixed to the pedestal 11, respectively, at a low place near the ground G. can do. Therefore, the working posture and the feet of the worker 53 are stabilized, the burden when lifting the moving cable 50 or the like, which is a heavy object, can be greatly reduced, and the safety of the worker can be ensured. At this time, even if the moving cable 50 is held by the reinforcing members 12 to 15, the support columns 3 and 4 are prevented from being inclined or toppled, so that safety can be further ensured.

Then, by operating the switch 16b of the first elevating means 9 and 10, as shown in FIG. 8B, the moving cable 50 or the like can be quickly moved to a height that could not be reached in the prior art. Can be raised. Therefore, it is not necessary to assemble a scaffold or transport a large amount of material as in the past, so that it is possible to reduce the labor of preparation work, shorten the construction period, and reduce the cost. .
Further, according to the moving cable gantry 1, the work floor 17 on which the worker 53 is placed in advance moves up and down so as to follow the height position of the head 50 a of the moving cable 50. The head 50a and the support insulator 51 can be easily contacted. Therefore, the burden at the time of connecting and separating the moving cable 50 and the supporting insulator 51 by the lead wire 52 can be further reduced.

Further, according to the moving cable pedestal 1, since the bracket 30 and the fixed base 31 are provided on the base 11, both the head 50a and the supporting insulator 51 can be held. Therefore, in addition to the use as a moving cable mount as shown in FIG. 9, there is a use as a supporting insulator column as shown in FIG. 10, which is highly convenient. In the case shown in FIGS. 9 and 10, the lengths of the lead wires 52, 52a, and 52b can be shortened as much as possible, so that the lead wires 52, 52a, and 52b fluctuate due to wind, earthquake, etc. An accident can be suitably prevented.
According to the moving cable pedestal 1, the floor 17c can be easily changed along the horizontal or vertical direction by sliding the work floor 17 along the horizontal direction. is there.
Furthermore, the moving cable pedestal 1 can prevent the support cables 3 and 4 from being overturned or broken, or the entire moving cable pedestal 1 can be overturned by adding the overturn prevention means 34. Therefore, when the moving cable 50 and the support insulator 51 are locked to the pedestal 11 placed at a high place and the operator 53 gets on the work floor 17 and the center of gravity is located at a high place, a fall accident can be ensured. This is particularly effective. However, even when the work floor 17 is not provided, the fall prevention means 34 can be used.

  The moving cable mount according to the present invention is not limited to that shown in the embodiments. For example, the lengths of the fixed columns 5 and 6, the movable columns 7 and 8, the worms 16 a and 16 a of the first elevating means 9 and 10, and the hydraulic cylinders 20 a and 20 a of the second elevating means 18 and 19 are specific. It may be other than the length described above. The first elevating means 9 and 10 may use worm gears composed of a worm and a worm wheel, instead of the hydraulic cylinders 16a and 16a and the hydraulic pump. Further, the base ends 3b and 4b of the support columns 3 and 4 and the installation portion 2c of the base 2 and the ends 12a to 15a of the reinforcing members 12 to 15 and the fixing portion 2d of the base 2 are fixed inseparably. good. In addition, the work floor 17 may be omitted, and may be configured to be removable by opening the ceiling portion of the cylindrical member 26 of the connecting means 25.

  INDUSTRIAL APPLICABILITY The present invention can be used as a moving cable pedestal for supporting a moving cable or a supporting insulator column during temporary power supply countermeasure work or the like.

  DESCRIPTION OF SYMBOLS 1, 1a, 1b ... Mobile cable mount 2 ... Base 2a ... Square steel pipe 2b ... Metal flat plate 2c ... Installation part 2d ... Adhering part 2e ... End face 3, 4 ... Post 3a, 4a ... Tip 3b, 4b ... Base end 5, 6 ... fixed columns 5a, 6a ... outer end surfaces 5b, 6b ... front end surfaces 7, 8 ... movable columns 9, 10 ... first elevating means 11 ... pedestal 11a ... ceiling surface 11b ... fixed holes 12-15 ... reinforcing members 12a-15a ... one end 12b-15b ... the other end 16a ... hydraulic cylinder 16b ... switch 17 ... work floor 17a, 17b ... shaft body 17c ... floor surface 18, 19 ... second lifting means 20a ... hydraulic cylinder 20b ... switch 21 ... Standing member 21a ... Metal pieces 21b, 21c ... Fastening member 21B, 21B '... Bolt 21N, 21N' ... Nut 22 ... First fixing member 22B ... Bolt 22 N ... Nut 23 ... Rotating shaft 23B ... Bolt 23N ... Nut 24 ... Second fixing member 24a, 24b ... Ring member 25 ... Connecting means 26 ... Tubular member 27a, 27b ... Through hole 28 ... Clamping member 28a ... Front end 28b ... Rear end 28B ... Bolt 28N ... Nut 29a ... First through hole 29b ... Second through hole 30 ... Bracket 31 ... Fixing base 31a ... Fixing hole 32 ... Screw body 33 ... Support 33B ... Bolt 33N ... Nut 34 ... Fall prevention means 35 ... Long body 35a ... One end 35b ... Other end 35c, 35d ... Metal piece 36 ... Ground installation part 50 ... Movement cable 50a ... Head 51 ... Support insulator 52, 52a, 52b ... Lead Line 53 ... Worker 54 ... Circuit breaker 54a ... Bushing 55 ... Transformer 55a ... Primary side bushing G ... Ground α, β ... Tilt Bevel

Claims (6)

A moving cable mount for holding the moving cable in a desired position,
A base installed on the ground, a plurality of support columns standing upright from each other on the base, and suspended from the ends of the plurality of support columns, via a moving cable head and the head and lead wires And a plurality of reinforcements that support the plurality of columns in an auxiliary manner, with a pedestal to which at least one of the supporting insulators connected is connected, and one end and the other end coupled to the base and the plurality of columns. Comprising a member,
The support column includes a fixed column that includes a base end thereof, a movable column that includes the distal end and moves up and down along the fixed column, and a first lifting unit that fixes the movable column to the fixed column so as to be movable up and down. A moving cable pedestal comprising: A work floor that moves up and down along the fixed columns is provided between the fixed columns.
2. The movable cable according to claim 1, wherein the work floor is held so as to be movable up and down with respect to the fixed column via a plurality of second lifting means provided respectively on the plurality of fixed columns. Mount. The support column includes an erecting member that erects the base end in a removable manner with respect to an installation portion provided on the end surface side of the base.
The reinforcing member includes a first fixing member that detachably fixes the one end to a fixing portion provided on the end surface of the base, and a rotating shaft provided on the fixed column. The movable cable mount according to claim 2, further comprising a second fixing member that is rotatably fixed. A connecting means is provided above the second lifting means;
The connecting means includes a cylindrical member whose major axis is arranged along the horizontal direction, a pair of insertion holes penetrating the minor axis of the cylindrical member along the horizontal direction, and a front end and a pair of insertion holes. The rear end consists of a fastening member inserted through each,
The work floor is provided with shafts inserted into the cylindrical members on both end faces thereof,
In the shaft body, first and second through holes through which the fastening member can pass are arranged at a distance along the longitudinal direction of the shaft body,
The first through hole is penetrated in parallel to the floor surface of the work floor,
The mobile cable pedestal according to claim 2 or 3, wherein the second through hole is penetrated perpendicularly to the floor surface. Comprising a fall prevention means for preventing the fall of the column;
The fall prevention means is installed on the ground, suspended from a plurality of long bodies whose one end is respectively connected to the plurality of fixed columns, and the other ends of the plurality of long bodies. The movable cable mount according to claim 1, further comprising a ground installation portion. The said pedestal is provided with the bracket by which the said head of the said movement cable is latched, and the fixed base to which the said support insulator is fixed via a fixing means. The moving cable mount described in the section.

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