On-site operation support equipment

Abstract

The present invention aims to provide a field work support device that can contribute to reducing the number of workers at high altitudes, reducing the need for scaffolding, and eliminating safety risks. [Solution] The system is characterized by comprising: a mobile trolley 13 having an operating console for on-site work, which can move on the floor and be fixed in position at the location of embedded metal fittings 8 embedded in the concrete of the deck plate 3 installed on the ceiling 2; an extendable device 14 installed on the mobile trolley that can extend and retract vertically; and an attachment 15 that is detachably attached to the upper end of the extendable device, is configured to move horizontally, and can be changed according to on-site work.

Description

Technical Field

[0001] Embodiments of the present invention relate to a on-site work support device that supports on-site work on a ceiling portion.

Background Art

[0002] Generally, the ceiling of a building such as a power plant is constructed by laying a deck plate, arranging embedded metal fittings for support at planned positions on top of the deck plate, spot-welding them individually, then arranging steel bars and pouring concrete. When arranging the embedded metal fittings, non-combustible fillers are filled between the deck plate so that concrete does not flow into the cut-out portion.

[0003] Here, when installing support structures such as support for mechanical devices, pipes, trays, ducts, etc. after the building is completed, it is necessary to cut and expose the embedded metal fittings and the deck plate on the deck plate. In order to automate these operations, an embedded metal fitting exposure device (Patent Document 1) has been developed.

[0004] In addition, in such on-site work, in addition to such work, there are cases where work is done in the ceiling direction in on-site work, such as the installation of metal anchors and link bolts, and more work reduction has been demanded.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] As mentioned above, when working towards the ceiling, i.e., upward, it becomes work at height and in an unstable posture, and in some cases sparks and slag may fall near the worker. Furthermore, considering the safety of the workers in such work, the number of man-hours and working hours may increase. Therefore, there was a demand for the development of a device for on-site work that can be operated from the floor without the need for scaffolding for work at height that occurs on site. [Means for solving the problem]

[0007] The field work support device according to this embodiment is characterized by comprising: an operating console for performing field work operations; a mobile trolley that can move on the floor and fix its position at the location of embedded metal fittings embedded in the concrete of a deck plate installed on the ceiling; an extendable device installed on the mobile trolley that can extend and retract vertically; and an attachment that is detachably attached to the upper end of the extendable device, is configured to move horizontally, and can be changed according to the field work. [Effects of the Invention]

[0008] The field work support device according to the embodiment of the present invention has been made to solve the above-mentioned problems and can contribute to reducing the number of field workers at high altitudes, reducing the installation of scaffolding, and eliminating safety risks. [Brief explanation of the drawing]

[0009] [Figure 1] A schematic side view showing an example of use during gas cutting in the field work support device according to Example 1. [Figure 2] A schematic side view showing an example of use when installing a metal anchor in the field work support device according to Example 2. [Figure 3] A schematic side view showing an example of use when screwing a link bolt into an insert connector in the field work support device according to Example 3. [Figure 4] A schematic side view showing an example of use of the field work support device according to Example 4 when welding and attaching a support structure that is a support for a through structure. [Modes for carrying out the invention]

[0010] (Example 1) Hereinafter, an embodiment of the field work support device of the present invention will be described with reference to the drawings.

[0011] Figure 1 is a schematic side view showing an example of use during gas cutting in the field work support device 1 according to Embodiment 1. In a nuclear power plant, a ceiling section 2 is formed at a relatively high position. Corrugated deck plates 3 are installed on the ceiling section 2 to support the concrete of this ceiling section 2, and support sections 4 that support the steel frame supporting these deck plates 3 are installed on the wall section 9.

[0012] The ceiling section 2 is equipped with sleeves 6, which are through-hole fittings through which pipes, cables, ducts, conduits, and other through-structures 5 pass. In addition, insert connectors 7 and embedded fittings 8 are similarly installed in the ceiling section 2. Furthermore, a field transmission device 11, which is connected to the field office 10 by radio waves, is installed in the wall section 9.

[0013] The work performed near the ceiling at these sites consists of four main tasks.

[0014] The first task is to cut out the embedded metal fittings 8 that are embedded in the concrete of the deck plate 3 installed in the ceiling section 2.

[0015] Looking upwards from the work area, the embedded metal fittings 8 are not visible due to the deck plate 3, so the deck plate 3 at that location must be cut out using gas cutting.

[0016] In this operation, a field work support device 1 is used. This field work support device 1 consists of a mobile cart 13 with wheels, which is powered by an electric drive system located below the control console used to operate the field work support device 1. The cart can be fixed in position by using on-site drawings and GPS to confirm its current location, and a telescopic device 14 that can extend and retract in the vertical direction is attached to the telescopic device 14. A horizontally movable attachment 15, which serves as a gas cutting device, is detachably attached to the tip of this telescopic device 14, and gas cutting is performed using the gas cutting device.

[0017] During gas cutting, the gas cutting section is displayed on the control panel on the mobile trolley 13 via an imaging device 16 installed on the telescopic unit 14 or attachment 15, allowing the worker operating the field work support device 1 to check the gas cutting status in real time. Furthermore, a slag catcher 17 is installed on the telescopic unit 14 or attachment 15 to catch the slag (not shown) generated during gas cutting, and the risk of fire should be considered in advance.

[0018] In this operation, the position of the embedded metal fittings 8 embedded in the concrete of the deck plate 3 may be detected by an eddy current flaw detection device (not shown), and a control device (not shown) may be installed in the mobile trolley 13 to gas-cut a predetermined area inside the deck plate 3, which is determined in advance by the know-how of an experienced worker according to the detected position. Alternatively, the field work support device 1 may be connected online, and images captured by the imaging device 16 may be transmitted from the field transmission device 11 installed at the site to the field office 10, and the field work support device 1 may be controlled from the field transmission device 11 via the field transmission device 11 to automatically gas-cut and expose the embedded metal fittings 8. Furthermore, after the cutting work is performed by the workers at the site, the angle of the torch of the cutting device and the position of the gap with the deck plate 3 may be memorized, and subsequent cutting work in other locations may be performed automatically.

[0019] Therefore, even in the cutting work of the deck plate on the ceiling of the power plant, the fire risk in gas cutting can be eliminated, the scaffolding installation man-hours, the overhead work and the upward work with poor productivity can be reduced in the on-site work, and the on-site work on the ceiling can be easily carried out. In addition, the work may be automated based on the know-how from experienced workers or the on-site work support device may be controlled from the on-site office, and remote control can be performed.

[0020] (Example 2) As the second work, as shown in the schematic side view showing an example of use when installing a metal anchor in the on-site work support device 1 according to Example 2 of FIG. 2, a work of attaching a metal anchor for installing a suspension rod such as a duct to the ceiling using a metal anchor installation device (drill and metal anchor) 18 or the like occurs. In addition, in FIG. 2, the same parts as those in FIG. 1 are denoted by the same reference numerals, and the description of the configuration of that part is omitted.

[0021] In FIG. 2, the on-site work support device 1 includes a metal anchor installation device 18 as an attachment 15, which is a replaceable screwing mechanism, and installs a metal anchor (not shown). The telescopic device 14 of the on-site work support device 1 also includes a mechanism such that the upper mechanism thereof expands and contracts to the upper limit.

[0022] In addition, after allowing the on-site worker to perform the installation work using the metal anchor installation device 18, the work such as the rotation speed, angle, and pushing force of the drill at the time of installation is memorized, and the metal anchor installation work at other places thereafter may be automatically performed. Also, the drawing of the installation location may be read in advance about the installation location, and the work of installing the metal anchor at that position may be automatically performed.

[0023] Therefore, even in the work of installing metal anchors on the ceiling of the power plant, the on-site work can be easily carried out as in Example 1.

[0024] (Example 3) The third task is to install link bolts 19 for lifting pipes that are temporarily placed on the floor during floor painting and into their final installation positions, as shown in the schematic side view illustrating an example of screwing a link bolt into an insert connector in the field work support device 1 according to Embodiment 3 of Figure 3. Note that in Figure 3, the same reference numerals are used for parts that are the same as in Figure 1, and the explanation of the configuration of those parts is omitted.

[0025] As shown in Figure 3, the installation process involves screwing the link bolt 19 into the insert connector 7, which is pre-installed on the ceiling section 2. For this screwing process, a manipulator 20 is installed as an attachment 15 to grip and screw in the link bolt 19. The manipulator 20 rotates and moves upward during the screwing process.

[0026] Alternatively, after having on-site workers install the link bolts 19, the rotation speed, angle, screwing force, and screwing upward speed of the manipulator 20 during that installation can be memorized, allowing subsequent installations at other locations to be performed automatically. Alternatively, the installation location can be pre-loaded with a diagram of the installation site, and the manipulator 20 can automatically grip and screw in the required number of link bolts 19 at each location.

[0027] Therefore, in the process of screwing the link bolts 19 into the insert connectors 7 of the deck plate on the ceiling of the power plant, on-site work can be easily carried out in the same way as in Example 1.

[0028] (Example 4) The fourth task is the installation of the support structure 12, which supports the through-structure 5, which consists of pipes, cable trays, and ducts, installed in the ceiling 2. This is shown in the schematic side view illustrating an example of use when welding the support structure 12, which supports the through-structure 5, in the field work support device 1 according to Embodiment 4 of Figure 4. Note that in Figure 4, the same reference numerals are used for parts that are the same as in Figure 1, and the explanation of the configuration of those parts is omitted.

[0029] As shown in the first embodiment in Figure 1, a support structure 12 that supports a penetrating structure 5 such as a pipe is welded to the cut-out and exposed embedded metal fitting 8 using the welding device 21 shown in Figure 4.

[0030] Alternatively, after having on-site workers perform the welding installation of the support structure 12, the welding conditions, such as the torch angle of the welding device 21, the positional relationship between the penetration structure 5 and the support structure 12, and the welding temperature, may be memorized, and the subsequent installation work at other locations may be automated. Alternatively, the welding work location may be read in advance from a drawing, and the welding work may be performed automatically while feeding the components of the support structure 12.

[0031] Therefore, in the process of welding the support structure 12 that supports the through structure 5 to the embedded metal fittings 8 cut out from the deck plate 3 of the ceiling 2 of the power plant, on-site work can be easily carried out in the same way as in Example 1.

[0032] As described above, by using the on-site work support device 1 of the present invention, which includes automation, in high-altitude work performed on-site, it is possible to significantly contribute to reducing the amount of upward work, eliminating safety risks, eliminating scaffolding work, and saving labor.

[0033] Although several embodiments of the present invention have been described, these embodiments are presented as examples only and are not intended to limit the scope of the invention. Furthermore, in the above embodiments 1 to 4, the attachment 15 is installed in a predetermined location (not shown) on the field work support device 1 by the operation, and the work can be specified on the display unit of the control panel according to the work, allowing for automatic replacement of the work equipment and enabling the work to be performed in a short time using the attachment 15 appropriate for the work.

[0034] These embodiments can be implemented in various other forms, and various omissions, substitutions, modifications, and combinations are possible without departing from the spirit of the invention.

[0035] These embodiments and their variations are included within the scope and essence of the invention, as well as within the scope of the claims and its equivalents. [Explanation of symbols]

[0036] 1...Field work support device, 2...Ceiling section, 3...Deck plate, 4...Support section, 5...Through structure, 6...Sleeve, 7...Insert connector, 8...Embedded hardware, 9...Wall section, 10...Field office, 11...Field transmission device, 12...Support structure, 13...Mobile trolley, 14...Expandable joint, 15...Attachment, 16...Imaging device, 17...Slag receiver, 18...Metal anchor installation device, 19...Link bolt, 20...Manipulator, 21...Welding device.

Claims

1. A mobile trolley equipped with an operating console for on-site work, which can move along the floor and be fixed in place at the location of embedded metal fittings embedded in the concrete of the deck plate installed on the ceiling, A telescopic device mounted on a mobile trolley that can extend and retract vertically, An attachment that is detachably mounted to the upper end of the telescopic device, configured to be movable in the horizontal direction, and can be changed according to the work being done on site, A field work support device characterized by comprising the following:

2. The field work support device according to claim 1, characterized in that the attachment is a gas cutting device that cuts the lower surface of the embedded metal fittings on the deck plate to expose the embedded metal fittings.

3. The on-site work support device according to claim 1, characterized in that the attachment is a metal anchor installation device for installing a metal anchor on the ceiling.

4. The field work support device according to claim 1, characterized in that the attachment is a manipulator for screwing a link bolt into an insert connector installed on the deck plate.

5. The field work support device according to claim 1, characterized in that the attachment is a welding device for welding a support structure that supports a through structure to embedded metal fittings exposed from the deck plate.

6. The field work support device according to claim 1, characterized in that the field work support device is equipped with a control device that controls according to a predetermined work procedure.

7. The field work support device according to claim 1, characterized in that the control device is controlled from the field office via a field transmission device.

Images