JPH074533U - Repair board mounting structure - Google Patents

Abstract

(57) [Summary] [Structure] The channel-shaped mounting member 3 is connected to the anchor bolt 7 with its open surface facing the inner surface 2 of the water channel, and is movable in the mounting member 3 in the length direction and the width direction. A body 13 and a holding plate 16 are provided, and a flange portion 14 that engages with the holding plate 16 is provided at one end of the nut body 13, and the nut body is inserted into a mounting bolt hole 19 formed in the repair plate 4. A mounting bolt 20 that is screwed onto the screw 13 is provided. [Effect] The nut body 13 is held by the mounting member 3 by the flange portion 14 engaging with the holding plate 16, and is prevented from accidentally falling off. By moving the nut body 13 in the length direction and the width direction, the nut body 13 can be aligned with the position of the mounting bolt hole 19, so that the mounting member 3 can be drilled or tapped conventionally performed on site. It becomes unnecessary and the work becomes easy.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a mounting structure for a repair plate that is mounted on the inner surface of a waterway when repairing the inner surface of an existing waterway, for example.

[0002]

[Prior art]

 Conventionally, as a mounting structure of this type of repair plate, for example, there is one shown in FIGS. That is, 31 is an existing concrete water channel.To repair this water channel 31, a repair plate 34 is attached to the inner surface 33 of the water channel via a plurality of mounting members 32, and in the gap between the repair plate 34 and the inner surface 33 of the water channel. This was done by pouring in air mortar 35 and cement mortar.

The attachment member 32 is formed in a channel shape with one side surface open, and the open surface faces the inner surface 33 of the water channel. One side of these attachment members 32 is attached to the tip of an anchor bolt 36 driven in the water channel 31 by welding A, whereby the attachment member 32 is fixed to the inner surface 33 of the water channel at a predetermined level. The repair plate 34 is attached to the attachment member 32 by inserting the attachment bolt 37 into the attachment bolt hole 38 and screwing the attachment bolt 37 into the tap hole 39.

[0004]

[Problems to be solved by the device]

 However, in the above conventional example, as shown in FIG. 9, the welding A between one side of the mounting member 32 and the tip of the anchor bolt 36 is likely to be incomplete due to the difference in the shapes of the two members 32, 36. For this reason, the connection strength between the mounting member 32 and the anchor bolt 36 may be insufficient. In addition, the welding work had to be done at the repair site, which was troublesome.

Although the mounting bolt holes 38 can be formed in advance in the repair plate 34 at the manufacturing plant, the tap holes 39 can be mounted by attaching the repair plate 34 to the mounting member 32 at the repair site. A tap must be made by drilling a drill hole according to the position of the bolt hole 38. In this way, the mounting member 32 had to be perforated or tapped at the repair site, which took time and effort.

Further, since the tap hole 39 is formed in the mounting member 32, the length of the tap hole 39 is only the thickness of the mounting member 32. Therefore, the number of threads of the female screw is insufficient and the tap hole 39 is repaired. There is a risk that the connection strength between the plate 34 and the mounting member 32 may be insufficient.

The present invention solves the above problems, and an object of the present invention is to provide a repair plate mounting structure capable of firmly and easily mounting a repair plate in a groove at a repair site.

[0008]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention provides a repair plate mounting structure to be mounted on the inner surface of a groove, in which an anchor bolt is driven into the groove, and a channel having a fixing bolt hole inserted into the anchor bolt is provided. A mounting member having a shape and a fixing nut that is screwed to the anchor bolt to fix the mounting member to the inner surface of the groove are provided, and a nut body that is movable in the length direction and the width direction of the mounting member in the mounting member. And a holding means for holding the nut body to the mounting member, and a mounting bolt that is inserted into the mounting bolt hole formed in the repair plate and screwed into the nut body.

[0009]

[Action]

 According to the above configuration of the present invention, at the repair site, by inserting the fixing bolt hole into the anchor bolt and screwing the fixing nut into the anchor bolt, the mounting member is securely and firmly connected to the anchor bolt, In addition, since the welding between the attachment member and the anchor bolt, which was conventionally performed at the renovation site, is no longer required, work at the site becomes easier.

In addition, by providing the nut body in the mounting member in advance in the manufacturing factory and holding the nut body on the mounting member by the holding means, the nut body cannot be accidentally dropped from the mounting member at the repair site. To be prevented. Since the number of threads of the female thread of the nut body is sufficiently formed, insert the mounting bolt into the mounting bolt hole and screw it into the nut body to secure the repair plate to the mounting member. In addition, it can be firmly connected. At this time, by moving the nut body in the length direction and the width direction of the mounting member, the nut body can be aligned with the mounting bolt hole of the repair plate. This eliminates the need for drilling and tapping the mounting members that were previously used at repair sites, which facilitates field work.

[0011]

【Example】

 Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 3, a repair plate 4 is attached to an inner surface 2 of an existing concrete water channel 1, which is an example of a groove, via a plurality of mounting members 3, and the water channel inner surface 2 and the repair plate 4 are connected to each other. Air mortar 5 and cement mortar are poured into the gap.

The mounting members 3 are arranged side by side along the length of the water channel 1 and are formed in a channel shape with one side open, as shown in FIGS. It is directed. At both ends of each mounting member 3, leg portions 6 which can be freely attached to the inner surface 2 of the water channel are formed so as to project outward. The leg portions 6 are formed with fixing bolt holes 8 that can be inserted into the tip portions of anchor bolts 7 that are cast in the water channel 1. Further, 9 is a fixing nut that is screwed into the anchor bolt 7 and fixes the mounting member 3 to the inner surface 2 of the water channel. A spacer 10 for level adjustment is provided between the leg 6 and the inner surface 2 of the water channel.

Inside the mounting member 3, a plurality of nut bodies 13 are provided at predetermined intervals in the length direction of the mounting member 3. Each of these nut bodies 13 has a tap hole at the center of a hexagonal rod, and one end of the nut body 13 is provided with a flange portion 14 formed in a rectangular flat plate shape. A holding plate 16 is provided between the pair of plate portions 15a and 15b of the mounting member 3 which face each other. A holding hole 17 having a diameter larger than the outer diameter of the nut body 13 is formed in the holding plate 16, the nut body 13 is inserted into the holding hole 17, and the flange portion 14 is engaged with the holding plate 16. The distance between the plate portion 15c, which is continuously provided between the ends of the pair of plate portions 15a and 15b, and the holding plate 16 is set to be larger than the thickness of the collar portion 14, and the collar portion 14 is held by the plate portion 15c. It is slidably fitted to the plate 16. As a result, the nut body 13 becomes movable in the length direction and the width direction of the mounting member 3, and the collar portion 14 and the holding plate 16 are provided as an example of holding means for holding the nut body 13 on the mounting member 3. ing. A through hole 18 having the same diameter as the holding hole 17 is formed in the plate portion 15c.

The repair plate 4 is a plate made of FRP, FRPM, or stainless steel, and has a plurality of mounting bolt holes 19. These repair plates 4 are connected to the mounting member 3 by means of mounting bolts 20 (disc bolts) which are inserted into the mounting bolt holes 19 and the through holes 18 and screwed into the nut body 13.

The operation of the above configuration will be described below. At the repair site, a spacer 10 is provided between the leg 6 and the inner surface 2 of the waterway to adjust the level of the mounting member 3, and then the fixing bolt hole 8 is inserted into the anchor bolt 7 to anchor the fixing nut 9. Since the mounting member 3 is securely and firmly connected to the anchor bolt 7 by being screwed into the bolt 7, the welding between the mounting member 3 and the anchor bolt 7 which is conventionally performed at the repair site is unnecessary. Work on site becomes easier.

Further, by previously providing the nut body 13 in the mounting member 3 and engaging the collar portion 14 with the holding plate 16 in the manufacturing factory, the nut body 13 is held by the mounting member 3 and the repair site is maintained. Thus, the nut body 13 is prevented from being accidentally dropped from the mounting member 3. Since the number of threads of the female thread of the nut body 13 is sufficiently formed, it is necessary to insert the mounting bolt 20 into the mounting bolt hole 19 and the through hole 18 and screw it into the nut body 13. Therefore, the repair plate 4 can be reliably and firmly connected to the mounting member 3. At this time, as shown in FIG. 4, by moving the nut body 13 in the width direction and the length direction of the mounting member 3 (see the phantom line in FIG. 2), the nut body 13 is attached to the mounting bolt hole 19 of the repair plate 4. Can be adjusted to any position. This eliminates the need for drilling or tapping of the mounting member 3 that has been conventionally performed at the repair site, which facilitates field work.

As shown in FIG. 2, since the collar portion 14 is formed in a square flat plate shape, when the mounting bolt 20 is screwed into the nut body 13, the collar portion 14 is attached to the mounting member 3. It abuts against the inner surfaces of both plate portions 15a, 15b and is prevented from rotating.

A second embodiment of the present invention will be described below with reference to FIG. That is, in the first embodiment described above, the mounting member 3 is mounted so that the open surface of the mounting member 3 faces the inner surface 2 of the water channel, but in the second embodiment, the nut body 13, the collar portion 14, and the holding plate 16 are the same. Up to this point, the mounting member 3 is mounted with the open surface thereof facing the side opposite to the inner surface 2 of the water channel. Therefore, the plate portion 15c of the mounting member 3 faces the inner surface 2 of the water channel, and the through hole 18 (see FIG. 1) provided in the plate portion 15c in the first embodiment is unnecessary here. Further, at both ends of the attachment member 3, leg portions 6 which can be freely abutted against the inner surface 2 of the water channel are formed so as to project outward.

According to this, similarly to the first embodiment, the mounting member 3 is securely and firmly connected to the anchor bolt 7 by the fixing nut 9, and the mounting member that has been conventionally used at the repair site. Since the welding of 3 and the anchor bolt 7 becomes unnecessary, the work at the site becomes easy.

Further, by inserting the mounting bolt 20 into the mounting bolt hole 19 and screwing it into the nut body 13, the repair plate 4 can be securely and firmly connected to the mounting member 3. At this time, by moving the nut body 13 in the length direction and the width direction of the mounting member 3, the nut body 13 can be aligned with the position of the mounting bolt hole 19 of the repair plate 4. This eliminates the need for drilling or tapping of the mounting member 3 that has been conventionally performed at the repair site, which facilitates the work at the site.

Hereinafter, a third embodiment of the present invention will be described with reference to FIGS. 6 and 7. That is, in the third embodiment, the leg portion 6 (see FIG. 5) of the second embodiment described above is not provided, and the fixing bolt hole 25 that can be inserted into the anchor bolt 7 faces the inner surface 2 of the water channel of the mounting member 3. It is formed on the plate portion 15c. These fixing bolt holes 25 are formed in an intermediate portion between a plurality of nut bodies 13 provided at predetermined intervals.

According to this, the spacer 10 is inserted into the tip of the anchor bolt 7, the fixing bolt hole 25 is inserted, and the fixing nut 26 is screwed into the anchor bolt 7, whereby the mounting member 3 is It is attached to the inner surface 2 of the water channel. In the third embodiment, the leg portion 6 (see FIGS. 1 and 5) provided in the above-described first and second embodiments can be eliminated, so that the manufacturing is easy and the weight can be reduced.

In the above embodiment, the water channel 1 is given as an example of the groove, but this may be a horseshoe-shaped or circular water-conducting tunnel. In this case, the mounting member 3 can be repaired by forming it in an arc shape in accordance with the shape of the tunnel, forming the repair plate 4 in an arc shape, and arranging a plurality of narrow repair plates 4 side by side.

[0024]

[Effect of device]

 As described above, according to the present invention, the fixing member is securely and firmly attached to the anchor bolt by inserting the fixing bolt hole into the anchor bolt and screwing the fixing nut into the anchor bolt at the repair site. It is connected and the work at the site becomes easier because the welding between the attachment member and the anchor bolt, which was conventionally done at the site of repair, is not required.

In addition, by providing the nut body in the mounting member in advance in the manufacturing factory and holding the nut body in the mounting member by the holding means, the nut body cannot be accidentally dropped from the mounting member at the repair site. To be prevented. Since the number of threads of the female thread of the nut body is sufficiently formed, insert the mounting bolt into the mounting bolt hole and screw it into the nut body to secure the repair plate to the mounting member. In addition, it can be firmly connected. At this time, the nut body can be aligned with the mounting bolt hole of the repair plate by moving the nut body in the length direction and the width direction of the mounting member. This eliminates the need for drilling and tapping the mounting members that were previously used at repair sites, which facilitates field work. In this way, it is possible to shorten the construction period because it is possible to reduce the number of man-hours on site.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing a mounting structure for a repair plate according to a first embodiment of the present invention.

FIG. 2 is a view on arrow AA in FIG.

FIG. 3 is a vertical cross-sectional view of a modified waterway.

FIG. 4 is a diagram showing position adjustment of a nut body.

FIG. 5 is a vertical cross-sectional view showing a mounting structure for a repair plate according to a second embodiment of the present invention.

FIG. 6 is a vertical cross-sectional view showing a mounting structure for a repair plate according to a third embodiment of the present invention.

FIG. 7 is a view taken along the line BB in FIG.

FIG. 8 is a vertical cross-sectional view of a modified water channel in a conventional example.

FIG. 9 is a vertical cross-sectional view showing a mounting structure for a repair plate in a conventional example.

[Explanation of symbols]

 1 Channel (groove) 2 Inner surface 3 Mounting member 4 Repair plate 7 Anchor bolt 8 Fixing bolt hole 9 Fixing nut 13 Nut body 14 Collar part (holding means) 16 Holding plate (holding means) 19 Mounting bolt hole 20 For mounting Bolt 25 Bolt hole for fixing

Claims (1)

[Scope of utility model registration request] 1. A structure for mounting a repair plate mounted on the inner surface of a groove, wherein a channel-shaped mounting member having an anchor bolt driven into the groove and having a fixing bolt hole inserted into the anchor bolt is provided. Provided with a fixing nut that is screwed to the anchor bolt and fixes the mounting member to the inner surface of the groove,
In the mounting member, a nut body movable in the length direction and the width direction of the mounting member, and a holding means for holding the nut body in the mounting member are provided, and the mounting bolt hole formed in the repair plate is provided. An attachment structure for a repair plate, which is provided with an attachment bolt that is inserted and screwed into a nut body.