JP3228283U - Drainage ditch unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a drainage ditch unit capable of realizing weight reduction while ensuring rigidity without causing rattling, scattering or skidding of an upper lid body. SOLUTION: A bolt mounting portion 251 having a bolt insertion hole 111 into which a screw bolt 100 is inserted is provided in an upper surface portion 11 of an upper lid body and a bolt mounting hole 252 is provided at a position corresponding to the bolt insertion hole 111, is provided on the back surface portion of a running water plate. A nut 200 having a nut 200 on the upper part of the inner side surface of the 25 and fixing a screw bolt 100 inserted into a bolt insertion hole 111 and a bolt mounting hole 252 from the upper surface 11 side of the upper lid body, and a nut 200 for supporting and fixing the nut 200 from below. It shall have a holder 300. [Selection diagram] FIG. 11

Description

The present invention relates to a steel drainage ditch unit installed on the shoulder of a road or the like to drain the road surface.

Conventionally, a steel drainage ditch unit, which is one of the drainage ditch units, is a hollow unit that is continuously arranged on the shoulder of the road and guides rainwater or the like on the road surface to a drainage mass to drain a large amount of rainwater or the like. (See, for example, Patent Documents 1 to 4). The upper lid is chained to the running water plate so that it will not be lost if it comes off. In a conventional drainage ditch unit, a front receiving angle is provided over the entire inner length of the rising portion of the running water plate, and a back receiving angle is provided over the entire inner length of the back portion of the running water plate, whereby in a factory or on-site. After the upper lid was placed on the running water plate to assemble the drainage groove unit, the state in which the upper lid was placed on the running water plate was maintained (see, for example, FIG. 5 of Patent Document 3). Then, the upper lid was fixed to the running water plate by inserting a pin into the pin insertion ring from the upper surface of the upper lid (see, for example, FIGS. 6 and 0006 of Patent Document 1).

Japanese Unexamined Patent Publication No. 2005-54491 Japanese Patent No. 6265938 Japanese Patent No. 6257013 Japanese Patent No. 6257014

However, in the conventional drainage groove unit, there is a gap between the outer peripheral surface of the pin and the inner peripheral surface of the pin insertion ring, so that the tire or the vehicle body of the car rides on the upper lid or comes into contact with the upper lid. As a result, there is a problem that the pin may come off due to the acting load from the outside, such as when a strong impact is given to the upper lid body, or the upper lid body may rattle, scatter, or skid. .. Further, there is a problem that the pin may not be able to secure the rigidity of the two members, the upper lid body and the running water plate. Further, in the conventional drainage ditch unit, since the front receiving angle and the back receiving angle are provided, there is a problem that the flowing water plate is heavy and the material cost is high.

Therefore, the first object of the present invention is to solve the above-mentioned problems and to provide a drainage groove unit capable of realizing weight reduction while ensuring rigidity without causing rattling, scattering or skidding of the upper lid. is there.

The first aspect of the present invention is a steel drainage ditch unit that drains the road surface in order to achieve the above object.
(A) The bottom surface portion through which the drainage flowing into the drainage groove unit flows, the rising portion rising from the end portion of the bottom surface portion and forming a wall on the front side, and the rising portion rising from the end portion of the bottom surface portion on the opposite side of the rising portion. A running water plate with a back surface and
(B) An upper lid body that is placed on the running water plate and is detachably provided as a lid and has a running water hole.
(C) A screw bolt for connecting and fixing the upper lid body and the running water plate, and
Have,
(D) A bolt mounting portion having a bolt insertion hole for inserting the screw bolt on the upper surface portion of the upper lid body and a bolt mounting hole provided at a position corresponding to the bolt insertion hole is inside the back surface portion of the running water plate. It has a nut on the upper part of the side surface to fix the bolt insertion hole and the screw bolt inserted into the bolt mounting hole from the upper surface side of the upper lid body, and has a nut holder for supporting and fixing the nut from below. To provide a drainage ditch unit characterized by.

According to the first aspect of the present invention, unlike the pin, it can be prevented from coming off, and the positional relationship between the upper lid and the running water plate is less likely to shift. Therefore, rattling, scattering, and skidding of the upper lid are less likely to occur, and weight reduction can be realized while ensuring rigidity.

The running water plate does not have a front receiving angle and a back receiving angle, and square steels are fixed at predetermined intervals to the upper inner side surface of the back surface portion of the running water plate and the upper inner side surface of the rising portion. Is preferable. It supports the upper lid and can reduce the weight while preventing rattling.

The upper lid preferably has a rib plate whose bottom surface is higher than the upper surface of the front surface portion of the upper lid. Weight reduction can be achieved while preventing skidding and damage of the upper lid.

According to the present invention, the upper lid is less likely to rattle, scatter, or skid, and the weight can be reduced while ensuring the rigidity.

It is a perspective view of Example 1 of the drainage ditch unit of this invention. It is a perspective view of the drainage groove unit of this invention in the state which the upper lid body was opened in Example 1. FIG. It is a front view of Example 1 of the drainage ditch unit of this invention. It is a top view of Example 1 of the drainage ditch unit of this invention. It is a right side view of Example 1 of the drainage ditch unit of this invention. It is a left side view of Example 1 of the drainage ditch unit of this invention. It is a rear view of Example 1 of the drainage ditch unit of this invention. It is a bottom view of Example 1 of the drainage ditch unit of this invention. It is a cross-sectional view of AA of Example 1 of the drainage ditch unit of this invention. It is sectional drawing BB in Example 1 of the drainage ditch unit of this invention. It is an enlarged view of the AA cross-section screw fixing part of Example 1 of the drainage groove unit of this invention. It is a perspective view in the state which the upper lid part of Example 1 of the drainage groove unit of this invention is removed. It is an internal structure explanatory view seen from the upper part of Example 1 of the drainage ditch unit of this invention. It is an internal structure explanatory view seen from the front of Example 1 of the drainage ditch unit of this invention. It is an internal structure explanatory view seen from the side surface of Example 1 of the drainage ditch unit of this invention. It is an installation drawing of Example 1 of the drainage ditch unit of this invention.

Hereinafter, the present invention will be specifically described with reference to examples, but the present invention is not limited thereto.

The drainage ditch unit of the first embodiment is a steel drainage ditch of a screw fixing method, and is composed of two members, an upper lid body and a running water plate. The upper lid, which is one of the two members, is fixed to the running water plate (main body), which is the other member, with bolts, and it is possible to prevent rattling, scattering, and skidding of the upper lid against an external acting load. It has a function. Further, the rigidity of the two members can be secured by fastening with bolts.

{Constitution}
FIG. 1 is a perspective view of a first embodiment of the drainage ditch unit of the present invention. The drainage ditch unit 1 is made of steel and is a hollow unit in which the back side is on the sidewalk side and the front side is on the roadway side, and the drainage ditch unit 1 is continuously arranged on the road shoulder or the like to guide rainwater or the like on the road surface to a drainage mass for drainage. It is particularly suitable for installation on bridges, intersections, roads in tunnels, railroad tracks, etc. Hereinafter, the front surface portion 12 side will be described as the front surface side of the drainage groove unit 1. FIG. 1 is a view showing a plane (upper surface), a front surface, and a right side surface.

The drainage ditch unit 1 is a steel drainage ditch unit 1 that drains the road surface, and (a) a bottom surface portion 24 through which the drainage flowing into the drainage ditch unit 1 flows, and a front surface rising from the end portion of the bottom surface portion 24. A running water plate 20 having a rising portion 23 serving as a side wall and a back surface portion 25 rising from an end portion of a bottom surface portion 24 on the opposite side of the rising portion 23, and (b) being placed on the running water plate 20 and attached / detached as a lid. It has an upper lid body 10 that is possibly provided and has a water flow hole 14, and (c) a screw bolt 100 that connects and fixes the upper lid body 10 and the water flow plate 20.

As shown in FIG. 11 to be described later, the drainage groove unit 1 further has (d) a bolt insertion hole 111 for inserting the screw bolt 100 in the upper surface portion 11 of the upper lid body at a position corresponding to the bolt insertion hole 111. A bolt mounting portion 251 provided with a bolt mounting hole 252 is provided on the upper part of the inner side surface of the back surface portion 25 of the running water plate, and the screw bolt 100 inserted into the bolt insertion hole 111 and the bolt mounting hole 252 from the upper surface portion 11 side of the upper lid is fixed. It has a nut 200 to be inserted, and has a nut holder 300 for supporting and fixing the nut 200 from below.

It will be described in detail below. FIG. 2 is a perspective view of the drainage groove unit of the present invention in a state where the upper lid is opened in the first embodiment. FIG. 2 is a view showing a flat surface (upper surface), a front surface, and a right side surface. The upper lid body 10 has a right-angled S-shaped shape in which a steel plate is continuously bent into three surfaces in a crank shape. That is, the upper lid 10 is continuous with the upper surface portion 11, the front surface portion 12 whose upper end is continuous with one end of the upper surface portion 11 and is a surface perpendicular to the upper surface portion 11 downward, and the lower end portion of the front surface portion 12. It is composed of a receiving surface portion 13 which is a surface perpendicular to the upper surface portion 11 of the cage and facing the opposite side.

In the running water plate 20, the steel plate is bent into a right-angled L shape, the front end is bent upward at a right angle, the back side is the back portion 25, the bottom surface side is the bottom surface portion 24, and the front end side rising wall portion is raised. The portion 23 is arranged below the upper lid 10 so as to form a hollow region from the back surface side of the upper lid 10 toward the lower front side, and the height of the front end is the receiving surface portion 13 of the upper lid 10. It is the same height as. That is, the upper lid body 10 serves as a lid for the running water plate 20 having an open upper part.

A plurality of water flow holes 14 for rainwater to enter are bored at the corners formed by the front surface portion 12 and the receiving surface portion 13. In FIG. 1, the number of water flow holes 14 is eight, but the number of water flow holes is not limited to this. FIG. 3 is a front view of the first embodiment of the drainage ditch unit of the present invention. The upper half of the water flow hole 14 is visible when viewed from the front. FIG. 4 is a plan view of the first embodiment of the drainage ditch unit of the present invention. The lower half of the water flow hole 14 is visible when viewed from above. Bolt insertion holes 111a and b are provided on the upper surface portion 11, and screw bolts 100a and 100b are attached, respectively.

FIG. 5 is a right side view of the first embodiment of the drainage ditch unit of the present invention. Further, FIG. 6 is a left side view of the first embodiment of the drainage ditch unit of the present invention. In this embodiment, the angle between the front surface portion 12 and the receiving surface portion 13 and the upper surface portion 11 is about 90 degrees, but the angle is not limited to this, and the lower portion of the front surface portion 12 is oblique in the direction of protruding toward the front side. It may be present, or the upper portion of the front surface portion 12 may be oblique in a direction protruding toward the front surface side.

FIG. 7 is a rear view of the first embodiment of the drainage ditch unit of the present invention. FIG. 8 is a bottom view of the first embodiment of the drainage ditch unit of the present invention. A hole for mounting is provided on the back side of the back surface portion 25 of the running water plate 20, that is, on the back side of the drainage groove unit 1.

FIG. 9 is a cross-sectional view taken along the line AA of the first embodiment of the drainage ditch unit of the present invention. The upper lid body 10 and the running water plate 20 are screwed together by a screw bolt 100, a nut 200, and a nut holder 300, which are hexagonal full screw bolts. In the figure, the shape of the screw bolt 100 to be inserted is shown. FIG. 10 is a sectional view taken along line BB in the first embodiment of the drainage ditch unit of the present invention. Square steels 71e, f, g, and h are welded to the inside of the rising portion 23 of the running water plate 20.

FIG. 11 is an enlarged view of the AA cross-sectional screw fixing portion of the first embodiment of the drainage groove unit of the present invention. In the figure, the shape of the screw bolt 100 to be inserted is shown above the arrow indicating the insertion direction. A bolt insertion hole 111, which is a through hole for inserting the screw bolt 100, is formed in the upper surface portion 11 of the upper lid body 10. A bolt mounting portion 251 having a bolt mounting hole 252 at a position corresponding to the bolt insertion hole 111 is welded to the upper portion of the inner surface of the back surface portion 25 of the running water plate 20.

As shown in FIG. 11, the screw bolt 100 inserted into the bolt insertion hole 111 and the bolt mounting hole 252 with the washer 400 sandwiched from the upper surface portion 11 side is a nut 200 screwed into the bolt 100 to the bottom of the bolt mounting portion 251. The nut 200 is supported and fixed from below by the nut holder 300. The nut holder 300 has a structure in which the nut does not run idle when the nut is inserted inside, and the nut is fixed by inserting a clip. The nut can be fastened by simply tightening the nut from one direction, and has a detent function. It is a nut holder (reference: Japanese Patent No. 5401492) that has a function of preventing falling off and can be refastened as many times as necessary.

FIG. 12 is a perspective view of the drainage ditch unit of the present invention in a state where the upper lid portion of the first embodiment is removed. The upper lid body 10 has an inner surface surface of the back surface portion 25 of the running water plate 20 so that the heights of the bolt mounting portions and the upper surface are matched with the bolt mounting portions 251a and b provided on the upper portion of the inner surface surface of the back surface portion 25 of the running water plate 20. The lower surface of the upper surface portion 11 is placed on the square steels 71a, b, c, and d welded to the upper portion, and the lower surface portion 11 is welded to the upper portion of the inner side surface of the rising portion 23 of the running water plate 20. The lower surface of the front surface portion 12 is placed on the square steels 71e, f, g, and h, and is firmly fixed with screw bolts 100. That is, in this embodiment, the running water plate 20 does not have a front receiving angle and a back receiving angle, and square steel 71 is predetermined on the upper inner side surface of the back surface portion 25 of the running water plate 20 and the upper inner side surface of the rising portion 23, respectively. It is fixed at the interval of.

FIG. 13 is an explanatory view of the internal structure seen from the upper part of the first embodiment of the drainage ditch unit of the present invention. In this embodiment, the square steel eliminates the need for a front receiving angle, a back receiving angle, and a reinforcing angle. The square steel is as small as 12.7 mm square and 20 mm long, and it is possible to reduce the weight while ensuring the rigidity. FIG. 14 is an explanatory view of the internal structure of the drainage ditch unit of the present invention as viewed from the front of the first embodiment. In this embodiment, the screw bolt eliminates the need for a pin. Since the screw bolt is fixed by screwing the upper lid body and the running water plate which is the main body, there is no worry that the screw bolt will come off like a pin and scatter. Reinforcing plates 60a, b, and c are welded to the back side of the upper lid 10 so as not to overlap with the water flow hole 14 on the back side of the corner formed by the front surface portion 12 and the receiving surface portion 13. FIG. 15 is an explanatory view of the internal structure of the drainage ditch unit of the present invention as viewed from the side surface of the first embodiment. Rib plates 30a, b, and c are provided on the back surface side of the front surface portion 12 and the upper surface portion 11 so as to be perpendicular to the longitudinal direction of the drainage groove unit 1. Even if a car tire or the like is placed on the receiving surface portion 13, a car tire or a vehicle body or the like hits the front portion 12, or a car tire or a vehicle body or the like rides on the upper surface portion 11, the reinforcing plate 60 or the rib plate 30 It serves to protect the hollow drainage ditch unit from being crushed. Further, the edge of the rib plate 30 is welded to the back side of the upper surface portion 11 and the front surface portion 12, and has a size such that one side hits the back surface of the running water plate 20 when the upper lid body 10 is closed. In this embodiment, the rib plate 30 is so short that its lower end is above the connection plate 50. That is, in this embodiment, the upper lid body 10 has a rib plate 30 whose bottom surface is higher than the upper surface of the front surface portion 12 of the upper lid body 10. In this embodiment, the length of the rib plate in the height direction is four-fifths of the conventional length, and further weight reduction can be realized. Further, even if the amount of drainage flowing on the bottom surface portion 24 of the running water plate increases, it becomes difficult for the rib plate 30 to dam it, and a larger amount of water can be drained.

The drainage that has entered the inside through the water flow hole 14 of the drainage ditch unit 1 is guided to the drainage mass through a plurality of drainage ditch units that are continuously connected in the longitudinal direction.

The upper lid body 10 and the running water plate 20 are a connecting plate 40b (not shown) provided on the back side of the upper surface portion 11 of the upper lid body 10, a chain 80a connected to the connecting plate 40a of the running water plate 20, a connecting plate 40d and a running water plate. It is connected to the chain 80b connected to the connecting plate 40c of 20. Connection plates 50a and 50b used for bolting to connect the drainage groove units arranged side by side are provided at the left and right ends of the back surface portion 25 of the running water plate 20 on the front surface side. The upper portions of the connecting plates 40a and c are provided with notches for sandwiching and holding the end portion of the upper lid body 10 when the upper lid body 10 is opened upward and raised. FIG. 2 shows a state in which the upper lid body 10 is sandwiched between the notches.

A scallop 31 is provided at the upper angle of the rib plate 30, which is the back side of the intersection of the upper surface portion 11 and the front surface portion 12 of the upper lid body 10, because the upper lid body 10 and the rib plate 30 are connected by welding. The space created by the back surface portion 25 of the running water plate 20, the upper surface of the bottom surface portion 24, the lower end of the rib plate 30, and the receiving surface portion 13 of the upper lid body 10 functions as a running water portion.

FIG. 16 is an installation view of the first embodiment of the drainage ditch unit of the present invention. The drainage ditch units 1 are arranged in a row at the end of the roadway and embedded so that the upper surface of the receiving surface portion 13 is flat with respect to the roadway surface of asphalt, and the adjacent drainage ditch units are connected. The drainage ditch unit 1 also serves as a curb, and the sidewalk is made at a position higher than the roadway by pouring concrete, asphalt, or the like into the back side of the drainage ditch unit. The upper lid body 10 and the running water plate 20 are formed by bending or roll homing to form their respective surfaces. A driving-type concrete anchor is attached to the mounting hole provided in the back surface portion 25 of the running water plate 20 so as to protrude at a right angle to the back surface of the drainage unit 1, and the back surface portion 25 is fixed to the concrete. The drainage ditch unit 1 is installed on the ground so that the bottom surface of the bottom surface portion 24 of the running water plate 20 is in contact with the mortar provided on the concrete.

In this embodiment, the length of the drainage groove unit 1 in the longitudinal direction is 1.2 m, the depth of the receiving surface portion is 150 mm, the depth of the upper surface portion is 200 mm, and the length from the lower bottom side of the running water plate to the rising end on the front side. The height is 70 mm, the thickness of each steel plate is 5 mm, and the height from the upper side of the bottom surface of the running water plate 20 to the lower end of the rib plate 30 is 60 mm. In this embodiment, the total weight of the drainage ditch unit is 53 kg, which can be reduced by about 20% as compared with the conventional drainage ditch unit. The upper lid is less likely to rattle, scatter, or skid, and can be made lighter while ensuring rigidity.

{effect}
According to this embodiment, the upper lid is less likely to rattle, scatter, or skid, and the weight can be reduced while ensuring the rigidity.

The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the invention. In addition, the components of each of the above embodiments can be arbitrarily combined without departing from the spirit of the invention.

1 Drainage groove unit 10 Top lid 11 Top surface 111a, b Bolt insertion hole 12 Front surface 13 Receiving surface 14 Water flow hole 20 Water flow plate 23 Rising part 24 Bottom part 25 Back surface part 251 Bolt mounting part 252 Bolt mounting holes 30a, b, c Rib plate 31 Scallop 40a, b, c, d Connecting plate 50a, b Connecting plate 60a, b, c Reinforcing plate 71a, b, c, d, e, f, g, h Square steel 80a, b Chain 100a, b Screw bolt 200 Nut 300 Nut Holder 400 Washer

Claims (3)

A steel drainage ditch unit that drains the road surface.
(A) The bottom surface portion through which the drainage flowing into the drainage groove unit flows, the rising portion rising from the end portion of the bottom surface portion and forming a wall on the front side, and the rising portion rising from the end portion of the bottom surface portion on the opposite side of the rising portion. A running water plate with a back surface and
(B) An upper lid body that is placed on the running water plate and is detachably provided as a lid and has a running water hole.
(C) A screw bolt for connecting and fixing the upper lid body and the running water plate, and
Have,
(D) A bolt mounting portion having a bolt insertion hole for inserting the screw bolt on the upper surface portion of the upper lid body and a bolt mounting hole provided at a position corresponding to the bolt insertion hole is inside the back surface portion of the running water plate. It has a nut on the upper part of the side surface to fix the bolt insertion hole and the screw bolt inserted into the bolt mounting hole from the upper surface side of the upper lid body, and has a nut holder for supporting and fixing the nut from below. Drainage ditch unit featuring. The running water plate does not have a front receiving angle and a back receiving angle, and square steels are fixed at predetermined intervals to the upper inner side surface of the back surface portion of the running water plate and the upper inner side surface of the rising portion. The drainage ditch unit according to claim 1. The drainage groove unit according to claim 1 or 2, wherein the upper lid body has a rib plate whose bottom surface is located higher than the upper surface of the front surface portion of the upper lid body.

Images