JP2006006020A - Mobile box apparatus for work - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mobile box apparatus for work which secures the space of a ground side by eliminating a permanent ground apparatus, which maintains a scenery, and which reduces the size of a storage box underground to enable to be installed even on a narrow width pedestrian walkway, etc. <P>SOLUTION: The box apparatus includes the storage box 12 which is closed at its upper surface by a top plate 16 buried underground, and a base 14 which mounts an apparatus contained in the storage box and connected with a communication line, a power line, etc. The base 14 is provided so that, as the top plate 16 moves, the base 14 can enter/exit into/from the storage box 12 and a ground R side. An input part is provided in the top plate installed on the ground side. The top plate itself moves up and down by an input operation through this input part. In the state that the base coupled to the top plate is lifted up to the ground side, electric wires and the like are connected or branched. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to work box devices such as manholes and handholes installed for work such as connection of electric power, connection of telephone lines, branching, distribution, etc., and in particular, a movable type that can be suitably applied to measures for undergrounding of electric wires. The present invention relates to a work box device.

Manholes and handholes are installed for the purpose of, for example, cable drawing / drawing, connection, and maintenance of pipes / cables. Moreover, in the electric power system field, there is an increasing number of cases where the cable is laid from an overhead line to an underground pipe line, especially in urban areas, due to undergrounding of electric wires from the viewpoints of disaster prevention, landscape maintenance, and public safety. As the laying method for undergrounding the electric wire, there are a direct burying method, a conduit drawing method, and the like. Recently, in urban areas such as large cities, there are also laying methods to arrange power lines, telephone lines, etc. in a common pipeline from the viewpoint of securing scenery and road usage area, increasing types of communication lines, etc. Among them, for example, various information communication, signal supply transmission lines, CATV (cable television) signal lines, and the like are included. Conventionally, in undergrounding of electric wires, as shown in FIG. 13, a plurality of pipelines 305 are formed along a side groove 304 on the side of the roadway 303 in the middle of the sidewalk 303 between the roadway 301 and the building 302. It is buried in the ground. In the figure, 306 is a manhole buried in the ground of the roadway, 307 is a power branching unit, 308 and 309 are high-voltage and low-voltage branching handholes, 311 and 312 are handhole transformer towers and handhole opening / closing. It is a tower. Then, in the basement directly below the handhole transformer tower 311 and the handhole switch tower 312, a handhole as shown in FIG. 12 is constructed by cast concrete or a prefabricated block, and a distribution line is drawn in, or It is branched and connected to each device on the ground side. These underground handholes are widely provided so that people can enter the room and perform various tasks with some margin. In the conventional underground equipment configuration of such electric wires, especially the power line is installed in the ground on the sidewalk side in terms of securing vehicle traffic, maintenance / inspection work, emergency work, and the like. In this case, the handhole transformer tower 311 and the handhole switch tower 312 are installed on the ground because it is necessary to avoid heat generation and moisture. The ground equipment of these transformer towers and switch towers is housed in a metal box of about 2m x 1m x 1.2m in length, width and height, for example, as shown in the figure The steel pipe guard rail 313 is erected on the roadway side or the end surface side to protect or restrict entry. There are large demands for installation of non-electric poles and electric wires in underground areas such as busy streets, shopping streets, densely populated areas of shops / housing, restaurants, historic sites, etc. When installing ground equipment, the entrance and entrance of a store may be the place of installation, and for residents and users of those buildings and houses, not only the entrance landscape is damaged, but also There has been a drawback that there is a high risk of causing troubles due to obstacles such as loading and unloading. Moreover, from the viewpoint of barrier-free for recent wheelchair users and the concept of UD (universal design), it is not preferable to walk on the sidewalk, and is unnecessary for walkers. In addition, there are cases where green spaces and street lights including small flower beds are installed in such narrow sidewalk spaces, and it may be difficult to secure a large handhole part in the ground and the ground equipment installation space itself. In many cases, the underground construction work itself could be hindered. There is also a concern that the human body may be adversely affected by electromagnetic waves generated from the equipment or electromagnetic noise. In addition, transformers and switch towers installed on the ground may be manually damaged or broken due to mischief or fraud, and there is a risk of causing a major accident or damage. For use of these ground devices, for example, a device disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 2000-188818) has been proposed.
JP 2000-188818 (Specifications 0006 to 0009, FIGS. 1, 2, and 3)

  In the ground device apparatus of underground wiring of the above-mentioned Patent Document 1, the ground device side is simply configured as a part of the structure of a bench or a flower bed, and originally the bench or the flower bed. Therefore, it cannot be applied to narrow-width sidewalks where it is difficult to secure a place for installing, and it cannot be a fundamental solution to the problems described above.

  The present invention has been made in view of the above-described conventional problems, and one object thereof is to eliminate the permanent ground equipment and to secure the space on the ground side, maintain the scenery, and maintain the convenience of the wheelchair user, while performing the work. An object of the present invention is to provide a movable work box device that can perform work smoothly by arranging work points corresponding to ground equipment on the ground only when necessary. Another object of the present invention is to provide a movable work box device that can be installed on a narrow sidewalk or the like by downsizing the storage box on the underground side, and can be configured at low cost. It is in.

  In order to achieve the above object, the present invention provides a storage box 12 embedded in the underground G and closed at the top by a top plate portion 16, and a device stored in the storage box and connected to a communication line, a power line, or the like. From the movable work box device 10 including the base 14 on which the portion 22 is mounted, and provided so that the base 14 can be moved into and out of the storage box 12 and the ground R side as the top plate portion 16 moves. Composed. The upper part of the top plate part may be formed to be flat with the sidewalk surface, or may be constituted by a greening part, a three-dimensional shape or the like according to other purposes. As a configuration in which the base 14 is moved in and out of the storage box 12 and the ground R side as the top plate portion 16 moves, manual input or motor drive may be used. The base may be moved linearly or curvedly between the ground side and the underground side, or may be moved so as to cross the ground diagonally. It is preferable to move up and down along the vertical direction. The device unit mounted on the base is not particularly limited, and the device may be a capacitor, a switch, or any other device configuration.

  Moreover, the top plate part 16 and the base | substrate 14 are connected, It is good to provide so that these may come in and out in the accommodation box 12 and the ground R side integrally. The bulk of the movable part is reduced, the box on the ground side is downsized, and the installation on the narrow sidewalk is realized. Note that the top plate part and the base plate may be connected separately from each other without being integrally connected, or may be linked to each other by a link or an arm instead of being directly connected, so that they move in and out of the ground side and the ground side. Good. It is preferable that the base plate 14 be a plate-like substrate as much as possible, and that an attachment hole or the like be provided in the base plate 14 so that electric wires and other devices can be installed because space saving can be achieved.

  Moreover, it is good to set it as the structure provided with the guide movement means 24 which moves the top plate part 16 and the base | substrate 14 integrally in and out of the inside of the storage box 12 and the ground R side.

  Moreover, it is good for the top plate part 16 and the base | substrate 14 to be connected and to be set as the structure provided so that linear movement was possible.

  Further, the guide moving means 24 is partly connected to either or both of the base 14 and the top plate part 16 while being screwed forward and backward in the vertical direction, and the screw advance / retreat mechanism 52 that moves the base and top plate part up and down. Should be included. Even those with a certain amount of weight load such as the top plate and the base move smoothly in the ground. In particular, even a manual input configuration can be specifically driven at low cost.

  Further, the top plate portion 15 is provided with an input operation portion 70 for driving input for integral movement of the top plate portion 16 and the base 14 between the storage box 12 and the ground side by operation on the ground R side. Good. The top plate portion installed on the ground side has an input unit, and the top plate portion itself moves up and down by an input operation via the input unit. Therefore, the input drive configuration can be extremely simplified, and the drive configuration can be realized in a small space without requiring a space for the drive device.

  Moreover, it is good to provide the ventilation means 86 which ventilates the inside of the storage box 12 with external air on the ground. It is preferable that a plurality of ventilation ducts are formed in the storage box so that the outside air is introduced into the circulation system so that the outside air can be taken in and the air in the box can be exhausted.

  Moreover, it is good for the top plate part 16 to include the receiving frame 32 which receives a road surface member (50) so that it may become flush with the ground road surface.

  Further, the input operation unit 70 is detachably engaged with the guide moving means (24), and the top plate portion 16 and the base 14 are directly moved in and out of the storage box 12 and the ground R side by input. A manual direct input tool (72) to be moved may be included.

  According to the movable work box device of the present invention, a storage box that is embedded in the ground and whose upper surface is closed by a top plate part, and a device part that is stored in the storage box and connected to a communication line, a power line, and the like are mounted. And the base plate can be moved in and out of the storage box and on the ground side along with the movement of the top plate part. In addition to not hindering loading and unloading of luggage, it is possible to maintain scenery and the convenience of wheelchair users. In addition, the underground storage box can be reduced in size and can be installed on a narrow-width sidewalk or the like, and can be manufactured at low cost.

  In addition, since the top plate portion and the base are connected, and these are provided so as to be integrated into and out of the storage box and the ground side, the configuration for the up and down movement and the configuration for the up and down drive are simple. It is also possible to reduce the size of the underground storage box.

  In addition, by adopting a configuration in which guide moving means for moving the top plate portion and the base board in and out of the storage box and the ground side is provided, a configuration for moving up and down can be realized, and the top plate portion and Stable up-and-down movement can be performed integrally with the base.

  In addition, the top plate part and the base are connected to each other so that they can be moved up and down linearly, thereby simplifying the structure for moving up and down and the structure for driving up and down. The part can be miniaturized.

  Further, the guide moving means includes a screw advance / retreat mechanism that is partly connected to either the base or the top plate part or both while being vertically screwed back and forth and moves the base and the top plate part up and down. Therefore, it can move up and down smoothly while receiving heavy loads such as the top plate part and the decorative block on the ground side, and in particular, it can be moved up and down even in a narrow sidewalk part where it is difficult to carry power because it can be driven by manual input.

  In addition, the top plate portion is provided with an input operation portion for driving input for integral movement of the top plate portion and the base in the storage box and the ground side by operation on the ground side. The configuration for driving the printing plate and the base can be realized with a very small base, and the configuration for driving the input can be simplified by direct input from the ground side, so that the cost can be reduced.

  In addition, by adopting a structure with ventilation means to ventilate the outside of the containment box with outside air on the ground, heat is generated from the transformer components and other wires connected or branched, resulting in malfunctions of equipment. You can avoid it.

  In addition, the top plate portion includes a receiving frame that detachably receives the road surface member so as to be flush with the ground road surface, so that the maintenance and inspection of the top plate portion can be easily performed by detaching the road surface member. In addition, the road surface can be formed in harmony with the walking road surface at all times.

  Further, the input operation unit includes a manual direct input tool that is detachably engaged with the guide moving means and moves the top plate portion and the base directly into and out of the storage box and the ground side by input. With this configuration, it is possible to simplify and lower the elevation drive configuration, and it is possible to smoothly perform the elevation drive operation by performing a specific operation on a narrow sidewalk.

  The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The present invention provides a transformer, a switch, a branching device, etc. intervening in the middle of power lines, telephone lines, information lines, etc. that are underground, so that they can move in and out of the ground and only when necessary for work. It is a movable work box device that can be pulled out to the ground side to work on the ground side.

  1 to 9 illustrate an embodiment of the present invention. In FIG. 1, a movable work box device (hereinafter referred to as “work box device”) 10 is embedded in the underground G. The base 14 is moved between the underground G side and the ground R side together with the movement of the top plate portion 16 that closes the upper surface of the storage box 12. It is a configuration.

  The storage box 12 is a hollow rectangular parallelepiped concrete box embedded in the underground side of the sidewalk 303 surface as shown in FIG. 2, for example, and has an open top surface. I try not to. The storage box 12 is configured, for example, in a size of 0.5 m × 1.5 m × 1.2 m in height, width, and height, and the base 14 advances into the inside from the ground side toward the ground side, and The underground side and the ground side are provided so that they can enter and leave so as to enter the underground side from the ground side.

  In this embodiment, as shown in FIGS. 1, 2, and 5, the accommodation box 12 is set so that the upper end thereof is positioned slightly lower than the ground surface. The upper surface opening of the storage box 12 is closed by a top plate portion 16 as shown in FIG. In FIG. 2, a lid receiving frame 32 for attachment having a U-shaped cross section formed in a square frame shape so as to form an opening that communicates in a straight shape from the hollow interior of the storage box on the top end surface of the box body of the storage box 12. Is fixed with the upper surface side as the receiving surface. In FIG. 3, reference numeral 19 denotes a grounding outlet.

  The base 14 is a part on which a device part connected to a communication line, a power line, etc. (not shown) that is passed through a synthetic resin protective conduit 18 for a power line or a communication line buried in the ground is mounted. In the form, it consists of a board plate through which a large number of mounting holes 20 are formed. For example, a transformer 22A including a capacitor for a main line, a branch, a roof, or the like, and an opening / closing part 22B are attached to the base 14. In the embodiment, the base 14 has a board-like structure. However, the base 14 may have a three-dimensional structure according to necessity in the case where the parts are spaced from each other, bent, or converged in a loop shape. It is good also as a shape and structure. For the base 14, for example, a heat-resistant material such as plastic or ceramic excellent in insulation, or other suitable metal material can be selected. In the embodiment, a gap 13 is provided between the lower end portion of the base 14 and the bottom wall surface of the receiving box 12, and the extra length portion 23 of the cable is received.

  In the present embodiment, the top plate portion 16 and the base plate 14 arranged on the ground side are connected to each other, and these move in and out integrally within the storage box 12 and the ground R side. In particular, in this embodiment, as shown in FIG. 2, they are provided so as to move up and down linearly. As shown in FIG. 2, the base plate 14 standing in the horizontal direction and the top plate portion 16 facing the surface along the side of the sidewalk 303 are connected and fixed in a T shape or in a vertical shape. These are moved up and down integrally through the guide moving device 24. That is, in FIG. 2, a guide member 26 is attached to the opposing inner wall on the short side of the storage box 12, and the base 14 is vertically oriented in a state where the surface is directed sideways while being partially guided by the guide member 26. It is designed to move up and down. The guide member 26 is a guide means for guiding the movement in and out of the storage box 12 of the base 14 and the ground R side. In this embodiment, the guide member 26 has a U-shaped cross section having a vertically long groove 28 as shown in FIG. Each corresponding inner wall portion corresponding to the short side of the storage box 12 and fixed to a position deviated from the central portion (in the embodiment, deviated toward the depth end). Is provided at the position). And the base 14 is installed so that it can slide freely up and down, engaging the both ends of the base 14 with the concave groove 28 of the guide member 26 of both sides.

  The top plate portion 16 includes a lid 34 that opens and closes the opening of the main body box from the upper surface. The lid 34 is received by a lid receiving frame 32 made of, for example, stainless steel having a rectangular shape slightly smaller than the opening of the main body box, and opens and closes the opening communicating with the opening of the main body box. The lid receiving frame 32 is formed in a hollow frame shape having an inner opening, and the lid 34 is provided with a closing plate 36 formed on the inner side. The lid receiving frame 32 and the lid 34 are provided with rib frames 38 and 40 that rise so as to form an oblong quadrilateral wall. When the lid 34 is fitted inside the lid receiving frame 32, the rib frames are in close contact with each other. Are fitted together so that they overlap each other. The lid 34 is provided with a rib frame projecting perpendicularly downward from the outer periphery of the long rectangular quadrilateral. Then, the inner projecting edge of the lid receiving frame 32 is fixed to the top end surface of the box body, and the lid 34 is fitted from the upper surface, and a bolt (not shown) is inserted and fastened from the bolt receiving portion 42 and fixed. In FIG. 6, with the lid 34 mounted in the lid receiving frame 32, the closing plate 36 of the lid 34 is horizontally arranged at an upper position separated from the upper surface of the receiving plate 33 inside the lid receiving frame 32. A hard rubber 44 and a water-expandable water-stopping packing 46 are installed on the upper part of the receiving plate 33 inside the lid receiving frame 32 to block the inside of the storage box in a watertight manner. As shown in FIGS. 1 and 6, a thick plate-like gap inside the lid 34 including the rib frame 38 and the closing plate 36 has a sidewalk such as tiles, decorative blocks, and pavement as seen in FIG. For example, a decorative block 50 or the like as a road surface member harmonized with the decorative member 48 is disposed, and the sidewalk surface is finished so as not to have a step. The top plate portion 16 need not have a flat finish that is flush with the sidewalk surface, and can be three-dimensionally constructed or shared with other structures as long as the ground conditions allow. It is good also as such a structure.

  The guide moving device 24 is a guide moving means for moving the top plate portion 16 and the base 14 integrally in and out of the storage box 12 and the ground R side. In this embodiment, the top plate portion 16 and the base 14 are moved. The guide member 26 and the screw advance / retreat mechanism 52 are included so as to be integrally connected and linearly moved up and down. The screw advance / retreat mechanism 52 is means for moving the base plate 14 and / or the top plate portion 16 up and down by screw advance / retreat movement. In this embodiment, the screw advance / retreat mechanism 52 is screwed and connected to each other. A pair of screw members 54A and 54B, and a link portion 56 that links the top plate portion 16 connected to the base plate 14 by a rotational input operation to any one of the screw members (54B) and drives it up and down.

  In the present embodiment, the screwing member 54A is formed of a vertically long screw shaft, and the lower end thereof is bolted to a substantially central position on the bottom surface of the storage box via the fixing bottom plate 58 and is formed to rise in the vertical direction. The screw shaft is constituted by, for example, a load-bearing square screw, and can be smoothly screwed back and forth with a small frictional force against a load from the axial direction. The screw shaft has a length that can secure a vertical stroke width that allows the base 14 to be completely exposed to the ground side, for example, and has a length that is about the depth of the inner box of the storage box 12.

  The screw member 54B is formed of a screw groove pipe member having a female square screw groove to be screwed to the screw shaft of the screw member 54A in the inner hole, and is screwed and rotated to the screw shaft of the screw member 54A as shown in FIG. 5 moves up and down. That is, in this embodiment, it is directly converted into a linear motion in the vertical direction through screwing forward / backward movement by rotational input to the screw member, thereby efficiently driving the top plate portion 16 and the base plate 14 to rise. ing. Further, an insulating synthetic resin pipe (not shown) is integrally fitted and fixed to the outer surface of the screw groove pipe member 54B.

  Specifically, in FIG. 5, a short cylindrical hollow short cylindrical frame 60 is protruded and fixed downward on the lower surface of the central portion of the closing plate 36 of the lid 34. Then, with the lid 34 fitted to the lid receiving frame 32, the upper end side of the screw groove pipe member 54 </ b> B passes vertically through the hollow cylindrical frame of the reinforcing rib base of the lid 34, and the upper end thereof extends upward from the closing plate 36 of the lid 34. Projecting. As shown in the figure, the screw groove pipe member 54B penetrating the reinforcing rib base 60 has a center hole inserted through the pipe member 54B, and a donut disk-like shape sandwiching the hollow short cylindrical frame 60 from the upper and lower surfaces. Upper and lower locking plates 62 and 64 are arranged. These upper and lower locking plates 62 and 64 are commonly fixed to the outer surface of the screw groove pipe member 54B by welding, and thus rotate integrally with the pipe member 54. Further, in the figure, a thrust bearing 66 is interposed between the lower locking plate 64 and the lower surface of the hollow short cylindrical frame 60, whereby the entire top plate portion 16 is axially supported by the locking plate 64. In this state, only the pipe member 54B is rotatable around the screw shaft. The linking part 56 is linking means for linking and driving the top plate part 16 connected to the base 14 by a rotational input operation to any one of the screwing members (54B). In this embodiment, the linking part 56 is connected to the screw shaft 54A. It includes a pipe member 54B to be screwed and a thrust bearing 66 that ensures a smooth rotation in the thrust direction while receiving the gravity direction load of the top plate portion 16.

  In FIG. 5, the protruding portion of the pipe member 54 </ b> B on the upper surface of the closing plate 36 of the lid 34 is the input operation unit 70. The input operation unit 70 is a part for performing a drive input operation for moving the top plate unit and the base in and out of the storage box and the ground side by an operation on the ground side. For example, as shown in FIG. The handle shaft 74 is fitted into the fitting square hole at the upper end of the pipe member by the detachable handle 72 for manual rotation operation, and the top plate portion 16 and the base plate 14 are driven up and down by manual rotation input. The handle 72 is detachably engaged with the guide moving device 24, and a manual direct input tool for moving the top plate portion 16 and the base 14 in and out of the storage box 12 and the ground R side directly by input. It eliminates the need for external mechanical power and can smoothly work on narrow roads, densely populated houses, shopping streets, etc. without causing inconvenience to the surrounding residents. In addition, manual driving enables easy maintenance and reliable operation.

  Further, a hollow short cylindrical outer case 76 is projected and fixed upward on the upper surface of the closing plate 36 of the lid 34 so that the projecting portion of the pipe member 54B is the central axis. A screw groove 78 is formed on the inner surface of the outer case 76, whereby a screw plug body 80 (see FIG. 5) that is screwed into the screw groove 78 is detachable so that the outer case 76 serves as a screw receiving cylinder. Attached to. The upper surface of the screw plug body 80 is formed to be flush with the sidewalk surface, for example, to ensure safety during walking, protect the equipment in the storage box, and regulate operations by third parties other than those involved. . In particular, in the present embodiment, a locking device 82 that locks the outer case 76 and the screw plug 80 is provided and can be unlocked only by the exclusive lock key 84, thereby strictly preventing unauthorized access by an external third party. Safety can be ensured by eliminating the above.

  Further, in FIG. 1, a ventilation device 86 for ventilating the inside of the storage box 12 with the outside air is provided. The ventilator 86 of the present embodiment is a circulation type ventilation means in which an air circulation path including a part of the interior space of the storage box is provided, and outside air is introduced in the middle thereof. An upper duct 88, a lower duct 90, and an outside air intake portion 92 that communicate with each other are included. In the embodiment, the outside air intake unit 92 is a vertical cylinder member that is erected on the ground and has an outside air inlet 94 at a position higher than the ground. In particular, in this embodiment, the present invention is applied in common with a hollow tower street lamp 98 having a discharge lamp 96 as shown in FIG. In FIG. 9, an intake port 94 for outside air is provided at an intermediate position of the cylinder, and an exhaust port 100 is provided at the upper end, each of which is provided with an umbrella member for preventing rainwater intrusion. In FIG. 1, for example, an upper duct 88 for discharging warm air has one end connected to the wall near the upper end of the storage box and the other end connected to the inside of the tubular body of the street light 98, while the lower duct 90 for introducing cold air is One end is connected to the wall surface near the lower end of the storage box, and the other end is connected to the inside of the tubular body of the street light 98. In this ventilator, the ventilation fan 102 is attached to forcibly ventilate with the outside air, but natural ventilation may be provided without providing the ventilation fan. FIG. 10 shows a state in which the top plate portion 16 and the base plate 14 are driven up by the manual handle 72 for construction work such as connection and branching of the base wires on the ground side. In the figure, 150 is a rail post, 152 is a guide rail, and 154 is a construction cone.

  Next, the operation of the movable work box device according to the present embodiment will be described. First, in a state where the base 14 and the top plate portion 16 are completely housed in the housing box 12, as shown in FIG. 11, the decorative block 50 of the top plate portion is arranged flush with the upper surface of the sidewalk 303. As a result, there are no three-dimensional obstacles on the sidewalk surface, and the scenery is maintained without interfering with loading / unloading of luggage and pedestrians. At this time, the street light 98 that is hollow and forms an air passage is erected on the ground at a position close to the decorative block 50.

  In FIG. 1, for example, by the ventilation fan 102 in the storage box 12, the air in the storage box passes through the upper air duct 88 through the outside air intake portion 92, that is, the vertical air passage in the street light 98, and from the exhaust port 100. Released into the open air. On the other hand, outside air is sucked from the intermediate suction port 94 of the street light 98 under a negative pressure and introduced into the accommodation box 12 via the lower duct 90. As a result, an air circulation system is formed by the storage box 12, the upper and lower ducts 88 and 90, and the outside air intake section 92, and fresh outside air from the outside air intake section 92 is always introduced into the storage box so that the transformer section 22B and the open / close state are opened and closed. The heat generated from the part 22A and the like can be released to the outside, and the humidity can be adjusted appropriately to prevent corrosion of the equipment.

  When it is necessary to connect or branch the wires in the storage box, such as adding, changing, or inspecting the wires, the operator can use the lock key provided on the screw plug 80 shown in FIG. 84 is unlocked, and the screw plug 80 is removed from the outer case 76. Then, for example, the operator manually fits the shaft 74 of the manual handle 72 shown in FIG. 8 and rotates it manually into the fitting square hole of the screw groove pipe member 54B that appears. The lower locking plate 64 and the upper locking plate 62 fixed to the pipe member 54B rotate synchronously with the rotation of the pipe member 54B. At this time, the screw groove pipe member 54B can freely move up and down or be loosely inserted. Since the thrust rib 66 is inserted between the lower locking plate 64 and the lower surface of the reinforcing rib base 60, the screw groove pipe member 54B and the screw are inserted. Only the linear movement in the axial direction by screwing with the shaft 54 </ b> A functions. As a result, the entire top plate portion 16 is raised by the forced rotation of the pipe member 54. At that time, the cables are simultaneously pulled up from the cable extra length portion 23. Then, as shown in FIG. 10, the top plate portion 16 and the base 14 are integrally driven to rise, and when lifted to an appropriate height, for example, an opening portion after lifting the top plate portion 16 with a plate material or frame material for a scaffold (not shown). The necessary work is easily performed on the ground with good workability. Then, after the work is finished, the manual handle 72 is used again to reversely rotate the screw groove pipe member of the input operation unit to drive the base plate 14 and the companion unit 16 downward so that the decorative block 50 and the sidewalk surface are flush with each other. Stop at the descending end. In this way, since specific operations such as connection and branching of electric wires are performed on the ground side, a storage space for the opening / closing portion 22A, the transformer portion 22B, and other devices simply attached to the base 14 is provided on the underground side. It is only necessary to secure it, and the size of the entire storage box on the underground side can be reduced, so that the construction cost of the entire box can be kept low, and the excavation area at the time of embedding can be reduced, and in the underground part of the narrow-width sidewalk It will be easier to install.

  As described above in detail, the lid portion of the storage box with the upper surface opened is used as the top plate portion, and this is shared with the road surface such as a sidewalk surface or their usage portion, and the base is connected or linked to this to move up and down. Since it is made to move, the whole can be reduced in size, can be specifically installed on a narrow sidewalk portion, etc., and the housing box itself can be reduced in size, and the entire manufacturing or construction cost can be greatly reduced.

  The movable work box device described above is not limited to the configuration of the above-described embodiment alone, and may be arbitrarily modified without departing from the essence of the invention described in the claims. . For example, in order to further strengthen the connection support structure between the top plate portion and the screw groove pipe member, a reinforcing frame may be attached between the pipe member and the lower locking plate, or the connection portion may be reinforced as a three-dimensional structure. Alternatively, the entire base 14 may be received by a damper cylinder to assist the ascending force, and when descending, it may be safely moved downward while applying a lifting support force from below. Further, a drive cylinder may be separately provided and driven up and down.

  The movable work box device of the present invention can be effectively applied to power, telephone line undergrounding, or general box devices that are always installed underground and require work on the ground side.

It is an effect | action and longitudinal cross-sectional explanatory drawing of the movable work box apparatus which concerns on embodiment of this invention. It is a partially cutaway perspective explanatory view of the movable work box device according to the first embodiment of the present invention. It is a disassembled perspective explanatory drawing of a top plate part. It is a partial plane explanatory view which abbreviate | omitted the metal receiving frame for attachment of a storage box. FIG. 2 is a partially omitted vertical cross-sectional explanatory diagram of FIG. 1. FIG. 2 is a partially omitted vertical cross-sectional explanatory view of a storage box corner of the apparatus of FIG. 1. It is explanatory drawing which separated and showed the top plate part of FIG. 6 from the storage box. It is a perspective view of a manual handle. It is a front view of the cylinder and street lamp for ventilation. It is action | operation explanatory drawing of the apparatus of FIG. It is a perspective explanatory view which shows the state of the ground surface side in the normal installation state of the apparatus of FIG. It is perspective explanatory drawing which notched and showed the underground burying part of the conventional ground equipment. It is perspective explanatory drawing which shows the installation state of the electric wires installed in the conventional narrow walkway.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Movable work box apparatus 12 Storage box 14 Base 16 Top plate part 22A Opening / closing part 22B Transformer part 24 Guide moving apparatus 32 Lid receiving frame 34 Lid 52 Screw advance / retreat mechanism 54A Screw member (screw shaft)
54B Screw member (screw groove pipe member)
56 Linking portion 62 Upper locking plate 64 Lower locking plate 66 Thrust bearing 70 Input operation portion 72 Handle 82 Locking device 86 Ventilation device 92 Outside air intake portion 98 Street light 302 Building 303 Sidewalk G Underground R Ground

Claims (9)

A storage box embedded in the ground and closed at the top by the top plate part;
Including a base mounted with a device unit housed in a housing box and connected to a communication line, a power line, etc.,
A movable work box device characterized in that a base is provided so that it can be moved in and out of the storage box and the ground side as the top plate moves.   2. The movable work box device according to claim 1, wherein the top plate portion and the base are connected to each other, and are provided so as to be integrated into and out of the storage box and the ground side.   3. The movable work box device according to claim 1, further comprising guide moving means for moving the top plate portion and the base in and out of the storage box integrally with the ground side.   The movable work box device according to any one of claims 1 to 3, wherein the top plate portion and the base are connected to be linearly movable up and down.   The guide moving means includes a screw advance / retreat mechanism that is partly connected to either or both of the base and / or the top plate part while being vertically screwed back and forth and moves the base and the top plate part up and down. The movable work box device according to claim 3 or 4.   The top plate portion is provided with an input operation portion for driving input for integral movement of the top plate portion and the base in the storage box and the ground side by an operation on the ground side. 6. The movable work box device according to any one of items 5 to 5.   The movable work box device according to any one of claims 1 to 6, wherein ventilation means for ventilating the inside of the storage box with outside air is provided.   The movable work box device according to any one of claims 1 to 7, wherein the top plate portion includes a receiving frame that detachably receives a road surface member so as to be flush with a ground road surface. The input operation section includes a manual direct input tool that is detachably engaged with the guide moving means and moves the top plate portion and the base directly into and out of the storage box and the ground side directly by input. 9. The movable work box device according to claim 3, wherein the movable work box device is provided.

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