JPS6115090Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a seal adjustment mechanism at the bottom of a corrosion-resistant cover. Corrosion-proof covers, especially steel pipe sheet piles (see Figure 1)
When installing a corrosion-resistant cover, the most important thing is the seal near the joint. Steel pipes connected by this type of joint do not always align in a straight line, depending on the occlusion of the joint.
Therefore, the shape of the space surrounded by the joint, both steel pipes, and the corrosion-resistant cover varies depending on the location, and it is not possible to manufacture a seal with a fixed shape in advance. Conventionally, seals were manufactured individually on-site or filled with elastic sealant from above, which required considerable effort. Even when filling with sealing material, a pedestal is required to support it.
In any case, on-site coordination is unavoidable. The present invention was developed to solve this problem, and is designed so that a pedestal of a fixed shape can be adjusted to each gap. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a schematic plan view of a steel pipe sheet pile, and FIG. 2 is an enlarged view of the mechanism of the present invention. 1
2 is a steel pipe, 2 is a joint, and 3 is a corrosion-resistant cover. In the drawing, the covers are connected at a position opposite to the joint 2, but they may have a continuous shape to some extent. Reference numeral 4 denotes a metal fitting for attaching the cover 3 to the steel pipe 1, and various types of metal fittings other than those shown in the drawings can also be used.

The portion of the corrosion-resistant cover 3 that faces the joint 2 extends downward as shown in FIG. 3, and a long hole 5 is formed in the lateral direction in this extended portion 3a. As shown in FIG. 2, when the covers 3 are placed one on top of the other, it is necessary to provide matching elongated holes in both.
A pedestal 6 is attached to the inside of this cover extension 3a. The pedestal 6 approximates the shape of the gap surrounded by the joint 2, both steel pipes 1, 1, and the cover 3, and is made slightly smaller than this. As shown in FIG. 4, the pedestal 6 is loosely attached to the cover extension 3a via bolts 7, and the bolts 7 pass through the elongated holes 5 of the cover and are screwed into nuts 8. Therefore, the pedestal 6 can be adjusted laterally and can be set at an appropriate location without hitting the joint 2 or the steel pipe 1. As the material of the pedestal 6, F/R/P or a metal plate is used. F.R.P.
If the size of the wooden pedestal increases, there is a risk that it will bend due to the filler above, so in this case, a support plate 9 is installed on the underside of the pedestal 6. The support plate 9 is made of metal and is fixed to the steel pipe 1 or the joint 2.

After positioning the pedestal 6, the nut 8 is tightened and fixed, and the mortar bag 10 is inserted from above using the holding plate 11. The mortar in the bag may be placed in advance or poured later. The mortar bag 10 seals between the pedestal 6, the steel pipe 1, and the joint 2. If the cover 3 is provided with a guide 12 (see FIG. 2) and the presser plate 11 is shaped similarly to the pedestal 6, the mortar bag 10 can be inserted easily. The mortar bag 10 may be removed and a seal may be attached around the pedestal 6. If it is difficult to check the sealing effect of the mortar bag 10 from above, an inspection window 13 may be provided in the cover 3 (FIG. 4) and closed after construction is completed. Furthermore, as shown in FIG.
can also be injected. In this case, it is convenient during construction if the pedestal 6 and the mortar bag 10 are integrated in advance.

As described above, according to the seal adjustment mechanism of the present invention, even if the shape of the gap near the joint is not constant, it can be sufficiently accommodated, and it is also possible to mass-produce the cradle in advance.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the steel pipe sheet pile, Fig. 2 is a plan view showing an embodiment of the invention, Fig. 3 is a front view of the cover extension, and Figs. 4 and 5 are enlarged views of the adjustment mechanism of the invention. FIG. 1...Steel pipe, 2...Joint, 3...Corrosion-proof cover,
3a... Cover extension, 5... Long hole, 6... pedestal, 7... Bolt, 8... Nut, 9... Support plate, 10... Mortar bag, 13... Inspection window.

Claims (1)

[Claims for Utility Model Registration] (1) The part of the corrosion-resistant cover 3 that faces the joint 2 is extended downward, and a long hole 5 is formed in this extended part 3a to fill the gap between the joint and both steel pipes 1, 1. A seal adjustment mechanism for the bottom of a corrosion-resistant cover, comprising a sealing pedestal 6 having a small shape that almost conforms to the inside of the cover extension part via tightening members 7 and 8 so as to be laterally movable. (2) The seal adjustment mechanism according to claim 1, wherein the tightening members are a bolt 7 and a nut 8. (3) The seal adjustment mechanism according to claim (1), wherein the tightening member also serves as a filler injection pipe for a mortar bag.