Excavation covering plate

Abstract

To provide a covering plate for excavation, which allows large vehicles to pass safely, is easy to assemble, and takes a short time to set up. [Solution] A covering plate 1 used to cover road excavation trenches, comprising a plate portion 11 on the upper surface that comes into contact with the road and a reinforcing portion 13 below the plate portion, wherein the plate portion and the reinforcing portion 13 abut on at least a portion of the underside of the plate portion 11 and the entire upper surface of the reinforcing portion 13, and the reinforcing portion 13 is configured to be accommodated inside the excavation trench, the plate portion 11 has an insertion hole 12, and is provided with a handle that is inserted through the insertion hole 12 and installed on the reinforcing portion.

Description

[Technical Field]

[0001] The present invention relates to a cut-and-cover lining plate used to line excavated areas in road construction and the like. [Background technology]

[0002] In the past, when laying underground trenches in road construction work, such as repairing gas pipes, it was necessary to backfill the buried trenches within the designated permitted time. This sometimes prevented the work from progressing sufficiently.

[0003] For this reason, as described in Patent Document 1, it has been known to cover a buried groove with a road safety passage board that is made of an anti-slip steel plate with retractable handles and articulated sections, with sloped buffer plates attached to both sides, and equipped with articulated metal fittings, to allow people and vehicles to pass through. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Utility Model Application Publication No. 6-24004 Summary of the Invention [Problem to be solved by the invention]

[0005] However, when large vehicles such as trucks pass through roads covered with conventional road traffic safety plates, the plates may not be strong enough or may slip out of place, creating a great danger.

[0006] Therefore, an object of the present invention is to provide a cut-and-cover plate that allows large vehicles to pass safely, is easy to assemble, and requires a short installation time. [Means for solving the problem]

[0007] In order to achieve the above object, the present invention provides a covering plate used for lining road excavation trenches, which plate has a plate portion on its upper surface that contacts the road and a reinforcing portion below the plate portion, wherein the plate portion and the reinforcing portion abut against each other at least a portion of the lower surface of the plate portion and the entire upper surface of the reinforcing portion, and the reinforcing portion is configured to be accommodated inside the excavation trench, and the plate portion has an insertion hole and a handle that is inserted through the insertion hole and installed on the reinforcing portion.

[0008] According to the present invention, a covering plate used for lining a road excavation trench, comprising a plate portion on an upper surface that contacts the road and a reinforcing portion below the plate portion, wherein a plurality of the covering plates are used adjacent to each other, the plate portion and the reinforcing portion abut against each other at at least a portion of the lower surface of the plate portion and the entire upper surface of the reinforcing portion, the reinforcing portion having a contact surface on at least one side and configured to be accommodated inside the excavation trench, the plate portion having an insertion hole, a handle that is inserted through the insertion hole and installed on the reinforcing portion, and the covering plates are arranged adjacent to each other at the contact surface.

[0009] According to the present invention, a covering plate can be provided which is characterized by having contact surfaces on both sides of the reinforcing portion. [Effects of the Invention]

[0010] According to the present invention, it is possible to provide a cut-and-cover plate that allows large vehicles to pass safely, is easy to assemble, and requires a short installation time. [Brief explanation of the drawings]

[0011] [Figure 1] FIG. 2 is a top view showing one embodiment of the covering plate of the present invention. [Figure 2] FIG. 2 is a bottom view showing one embodiment of a covering plate according to the present invention. [Figure 3] FIG. 2 is a top view showing one embodiment of the covering plate of the present invention. [Figure 4]1 is a cross-sectional view showing one embodiment of a covering plate according to the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0012] The present invention will be described in detail below with reference to the accompanying drawings, in which: The cut-and-cover lining plate of the present invention is used to line a road excavation trench;

[0013] (Embodiment 1) As shown in Fig. 1, the covering plate 1 has a rectangular plate portion 11 and an insertion hole 12 near the center of the plate portion 11. The plate portion 11 is configured so that vehicles can pass over the upper surface thereof.

[0014] As shown in Figure 2, the underside of the plate portion 11 abuts against the reinforcing portion 13. The end of the plate portion 11 extends horizontally from the abutment surface between the plate portion 11 and the reinforcing portion 13. The reinforcing portion 13 has a handle 22, which is configured to protrude from the upper surface of the plate portion 11 through the insertion hole 12 of the plate portion 11. The handle 22 makes it easy to transport and install the covering plate 1. Note that the handle 22 may be configured to be retractable toward the underside of the plate portion 11 after the covering plate 1 is installed, to allow vehicles to travel more comfortably.

[0015] The reinforcing portion 13 is configured to be sized to be stored inside the excavation trench for road construction. When the covering plate 1 is installed in the excavation trench for road construction, only the reinforcing portion 13 is stored inside the excavation trench for road construction, and the plate portion 11 is configured to cover the excavation trench for road construction.

[0016] (Embodiment 2) As shown in Figures 3 and 4, the lining plate 21 has a rectangular plate-shaped plate portion 211, a handle 212, and a rectangular parallelepiped reinforcing portion 213. Furthermore, a contact surface 214 is provided on the side of the reinforcing portion 213. The handle 212 has the same configuration as in embodiment 1. The lining plate 22 also has a rectangular plate portion 221, a handle 222, and a reinforcing portion 223. Furthermore, contact surfaces 224, 225 are provided on both side surfaces of the reinforcing portion 223. The lining plate 23 also has a rectangular plate portion 231, a handle 232, and a reinforcing portion 233. Furthermore, a contact surface 234 is provided on the side surface of the reinforcing portion 233.

[0017] The lining plates 21, 22, and 23 are installed adjacent to each other so that the contact surface 214 comes into contact with the contact surface 224, and the contact surface 225 comes into contact with the contact surface 234. This configuration helps prevent the lining plates from overlapping with each other and from slipping from each other.

[0018] The plate portion 211 abuts against the upper surface of the reinforcing portion 213 and extends horizontally from the upper surface of the reinforcing portion 213, with the end edges of the plate portion 211 coinciding with the end edges of the contact surface 214. Specifically, in FIG. 3 , the plate portion 211 extends vertically and leftward from the upper surface of the reinforcing portion 213, but does not extend rightward. Similarly, the plate portion 221 abuts against the upper surface of the reinforcing portion 223 and extends horizontally from the upper surface of the reinforcing portion 223, with the end edges of the plate portion 221 coinciding with the end edges of the contact surface 224. Specifically, in FIG. 3 , the plate portion 221 extends vertically from the upper surface of the reinforcing portion 223, but does not extend leftward or rightward. Similarly, the plate portion 231 abuts against the upper surface of the reinforcing portion 233 and extends horizontally from the upper surface of the reinforcing portion 233, with the end edges of the plate portion 231 coinciding with the end edges of the contact surface 234. Specifically, in FIG. 3, the plate portion 231 extends upward and downward and to the right on the upper surface of the reinforcing portion 233, but does not extend to the left.

[0019] The configuration of the present invention is not limited to the illustrated example, and design changes and installation positions can be made as desired within the scope that does not change the gist of the present invention.

[0020] Explanation of symbols Covering plates: 1, 21, 22, 23 Board: 11, 211, 221, 231 Insertion holes: 12 Handles: 22, 212, 222, 232 Reinforcement: 13, 213, 223, 233 Contact surface: 214, 224, 234

Claims

1. A covering plate used to cover a road trench, comprising a plate portion on the upper surface in contact with the road and a reinforcing portion below the plate portion, The plate portion and the reinforcing portion are in contact with each other on at least a portion of the lower surface of the plate portion and the entire upper surface of the reinforcing portion. The reinforcing portion is configured such that only the reinforcing portion is housed inside the excavation trench. The plate portion has an insertion hole, and a handle is inserted through the insertion hole and installed on the reinforcing portion, The plate portion is characterized in that the end of the plate portion extends horizontally from the contact surface between the plate portion and the preceding reinforcing portion, and covers the excavated groove and the area around the excavated groove.

2. A covering plate used to cover a road trench, comprising a plate portion on the upper surface in contact with the road and a reinforcing portion below the plate portion, The aforementioned covering plates are used in multiple adjacent locations. The plate portion and the reinforcing portion are in contact with each other on at least a portion of the lower surface of the plate portion and the entire upper surface of the reinforcing portion. The reinforcing portion has a contact surface on at least one side, and is configured such that only the reinforcing portion is housed inside the excavation groove. The plate portion has an insertion hole, and a handle is inserted through the insertion hole and installed on the reinforcing portion. The contact surfaces are arranged to be adjacent to one another, The covering plate according to claim 1, characterized in that, on the side surface where there is no contact surface, the end of the plate extends horizontally from the contact surface between the plate and the preceding reinforcing portion, and covers the excavated groove and the area around the excavated groove.

3. The lining plate according to Claim 2, wherein, of the plurality of lining plates arranged adjacent to each other along the excavation groove, the lining plate located at the end in the direction of arrangement has the contact surface only on one side of the reinforcing portion facing the adjacent lining plate in the direction of arrangement, and the lining plate located at a position other than the end has the contact surface only on both sides of the reinforcing portion facing the adjacent lining plate in the direction of arrangement.

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