JPH0630235U - Drainage cleaning lid - Google Patents

Abstract

(57) [Summary] [Purpose] The cleaning port can be easily closed, the closed lid can be fixed, and the cleaning port can be easily opened. Moreover, it is a lid for the cleaning port that allows you to easily take out the earth and sand embedded in the jig insertion hole on the top surface of the lid and prevent the surface appearance from being damaged. [Structure] A plurality of locking protrusions 8 are provided on the inner peripheral portion of the lid receiving frame 7.
And a plurality of locking grooves 13 consisting of a vertical groove 11 and a horizontal groove 12 into which the locking projections 8 can be inserted, extending downward from the back surface of the lid 6 and inserted into the lid receiving frame 7. Two jig insertion holes 15 are provided, which are provided near the outer periphery of the upper surface of the lid 6 and in which projections at both ends of the opening / closing jig can be inserted and engaged at the same time.
And a lid for the drainage cleaning opening provided with a mud removal groove 16 that is obliquely raised from the bottom of the jig insertion hole 15 to the upper surface of the lid 6.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This invention relates to a lid for a drainage basin cleaning port according to a so-called turn-up system provided in a ground opening portion of a sewage masu, rainwater masu, or a manhole (hereinafter referred to as drainage masu) buried underground.

[0002]

[Prior art]

 Drainage masts are installed at connection parts such as drainage pipes buried in the ground, bent portions of drainage pipes, site boundaries, or at fixed distances of drainage pipes. It is sectional drawing which shows an example of a basin.

The drainage basin 1 is a drainage basin body 3 connected to the drainage pipe line 2, a rising pipe 4 connected from the drainage basin body 3 to the surface of the ground, and a cleaning port attached to the upper end opening of the rising pipe 4. 5 and.

In addition to large-sized drainage basins, drainage basins formed of synthetic resin such as vinyl chloride have become popular. It is necessary to prevent the lid 6 of the cleaning opening 5 from being inadvertently opened by anyone other than the person concerned, and there is an example in which a screw that is screwed into the inner circumference of the cleaning opening 5 and the outer circumference of the lid 6 is provided. However, since it is inconvenient to open and close because mud bites, so-called turn-up type lids are becoming widespread, as in the example disclosed in Japanese Utility Model Publication No. 3-32606.

FIG. 5 is a sectional view showing an example of a conventional turn-up type lid.

The cleaning port 5 is composed of a lid receiving frame 7 fixed to the upper end of the rising tube 4 and a lid 6, and a plurality of locking projections 8 project from the inner peripheral portion of the lid receiving frame 7, and the lid 6 has a lid. The vertical groove 11 into which the locking projection 8 can be inserted is formed on the outer peripheral portion of the cylindrical portion 10 which extends downward from the back surface of the disk portion 9 and is inserted into the lid receiving frame 7, and the horizontal groove 12 which follows the vertical groove 11. A plurality of locking grooves 13 are formed.

When closing the cleaning port 5, the lid 6 is put on the lid receiving frame 7 while inserting the engaging projection 8 of the lid receiving frame 7 into the vertical groove 11 of the engaging groove 13 of the lid 6. 9 is placed on the placing surface 14 at the top of the lid receiving frame 7. Then, the lid 6 is rotated in the circumferential direction, and the locking projection 8 of the lid receiving frame 7 is introduced into the lateral groove 12 portion of the locking groove 13. By the above operation, the lateral groove 12 of the locking groove 13 and the back surface of the disk portion 9 of the lid 6 are firmly held by the locking projection 8 of the lid receiving frame 7 and the mounting surface 14, and dirt, rainwater, etc. are mixed or It does not leak out, and it cannot be opened by simply lifting the lid 6, preventing an accident.

When the cleaning port 5 is opened, the lid 6 closed by the above operation is turned in the opposite direction to the closing direction, and the locking projection 8 of the lid receiving frame 7 is locked by the locking groove 13 of the lid 6. The lid 6 may be lifted after the lid 6 is positioned in the vertical groove 11 portion.

Unlike the screw type opening and closing, the lid 6 can be opened and closed with a small rotation angle, that is, the lid 6 can be opened and closed by rotating the lid 6 by about 10 to 45 degrees. The locking projection 8 of the frame 7 and the locking groove 13 of the lid 6 have such a dimensional relationship.

The above-mentioned opening / closing operation can be easily imagined because there is an example in which a method similar to that of other containers and instruments is adopted, and it is also possible that a person other than the concerned person may open / close at will. In order to keep the top surface of the lid 6 as flat as possible, the lid 6 is not provided with a protruding handle or the like for turning or lifting, and an opening / closing jig stored by a person concerned is used as a component. Specifically, the structure is such that the projecting portions provided at both ends of the jig can be opened and closed only by inserting the projecting portions into a plurality of jig insertion holes 15 provided near the outer peripheral portion of the upper surface of the lid 6 and turning the lid 6.

[0011]

[Problems to be solved by the device]

 However, in the above-described conventional turn-up type drainage cleaning port lid, the jig insertion hole on the top surface of the lid is a blind hole (bottomed hole) that does not penetrate to the back surface of the lid. It is easy for soil and sand to accumulate and become hard and clogged. Since it is difficult to scrape out the clogged soil, there is a problem that it is difficult to insert the opening / closing jig into the jig insertion hole.

It should be noted that there is also a configuration in which jig insertion holes provided at two locations near the outer peripheral portion of the upper surface of the lid 6 are connected by diametrical grooves so that the earth and sand buried in the jig insertion holes are squeezed out to the groove portions. However, there is a problem that it is difficult to swept out from the groove, and the sediment remains in the groove, and the sediment always accumulates in the long groove and spoils the surface appearance of the lid.

The present invention has been made to solve the above-mentioned problems of the prior art. It is possible to easily close the cleaning opening, fix the closed lid, and easily open the cleaning opening. Wear. Moreover, it is an object of the present invention to provide a lid for a cleaning port for drainage which can easily take out the earth and sand buried in the jig insertion hole on the upper surface of the lid and prevent the surface appearance from being damaged.

[0014]

[Means for Solving the Problems]

 For this reason, the lid of the drainage basin cleaning port according to the present invention is placed on the lid mounting portion of the upper opening of the drainage basin and rotated a little in the circumferential direction to lock and fixed, and a little in the opposite direction to unlock the lock. The lid of the cleaning port is a plurality of jig insertion holes on the top surface of the lid near the outer periphery, and it is slanted up from the bottom of the jig insertion holes to the top surface of the lid. The object is to achieve the above-mentioned object by a structure having a mud removal groove.

[0015]

[Action]

 With the above configuration, like the so-called turn-up type lid, place the lid on the lid mounting part of the upper opening of the drainage, and insert the jigs into the jig insertion holes provided in multiple places near the outer periphery of the top surface of the lid. It can be easily closed and fixed by rotating the lid slightly in the circumferential direction. The jig can be easily opened by inserting the jig into the jig insertion hole and turning the lid slightly in the opposite direction.

[0016] The sediment accumulated in a plurality of jig insertion holes provided near the outer periphery of the upper surface of the lid is easily removed from the mud removal groove that is obliquely raised from the bottom of the jig insertion hole to the upper surface of the lid. It can be scraped further to the outside on the upper surface. Note that the mud removal groove is not a large groove that crosses the top surface of the lid, and does not impair the appearance even if mud is buried.

[0017]

【Example】

 Hereinafter, a lid for a drainage cleaning port according to the present invention will be described with reference to examples.

The lid receiving frame and the lid, which is the lid mounting portion of the upper opening of the drainage basin that constitutes the cleaning port of the drainage basin of the embodiment, are made of general synthetic resin such as polyvinyl chloride, polyethylene, polypropylene, or FRP, It can also be made from resin concrete, cast iron, etc.

Then, a lid receiving frame fixed to the upper end of the rising pipe, a plurality of locking projections provided on its inner peripheral portion, and a downward extending from the back surface of the disk portion mounted on the lid receiving frame provided on the lid. A cylindrical part to be inserted into the lid receiving frame, a plurality of locking grooves consisting of a vertical groove and a horizontal groove on the outer peripheral part of the cylindrical part, into which the locking protrusions can be inserted, etc. are used for the conventional turn-up type drainage cleaning. Since this is based on the configuration of the lid of the mouth, duplicated description will be omitted, and the configuration of a plurality of jig insertion hole portions provided at a portion near the outer periphery of the upper surface of the lid, which is a feature of the embodiment, will be described below.

FIG. 1 is a plan view showing an upper surface of a lid according to an embodiment of the present invention, and FIG. 2 is a sectional view showing the vicinity of a jig insertion hole provided on the upper surface of the lid. The same or corresponding parts as those in the conventional example are designated by the same reference numerals.

The two jig insertion holes 15 provided 180 degrees apart near the outer periphery of the upper surface of the lid 6 are blind holes that do not penetrate to the back surface, and are used for opening and closing stored by persons concerned. The projections on both ends of the jig are formed so that they can be inserted and engaged at the same time.

As shown in FIG. 2, a mud removal groove 16 that is obliquely raised from the bottom of the jig insertion hole 15 to the upper surface of the lid 6 is provided. In addition, as shown in FIG. 1, the mud removal groove 16 has a rising angle of about 30 to 60 degrees from the jig insertion hole 15 to the upper surface of the lid 6 in a direction other than the direction perpendicular to the diameter line of the lid. It is provided. In the example shown in FIG. 1, the bottom surface of the mud extraction groove 16 is substantially semicircular, and the shape of the mud extraction groove 16 that appears on the surface is substantially triangular.

By avoiding the direction of the mud removal groove 16 from the jig insertion hole 15 at right angles to the diameter line of the lid, the projections at both ends of the opening / closing jig can be simultaneously inserted into the plurality of jig insertion holes 15. Once inserted, the lid 6 can be rotated in the circumferential direction.

In another embodiment, as shown in the plan view of FIG. 3, the mud removal grooves 16 are provided on the diameter line toward the center, and the mud removal grooves 16 facing each other are not connected. There is.

In the example shown in FIG. 3, the bottom surface of the mud removal groove 16 is substantially flat, and the shape of the mud removal groove 16 that appears on the surface of the lid 6 is substantially rectangular.

In each of the above-described embodiments, the same effect as that of a so-called turn-up type lid is provided, and a plurality of locking protrusions provided on the inner peripheral portion of the lid receiving frame and downward from the back surface of the lid are provided. It is a combination of a plurality of locking grooves consisting of a vertical groove and a horizontal groove provided on the outer peripheral portion of the cylindrical portion to be inserted into the extension cover receiving frame, but is not limited to this configuration, for example, on the lid side. To have a structure similar to the locking projection and to the same effect as the locking groove on the lid receiving frame side. You can

Further, the number of jig insertion holes 15 is not limited to two, and a plurality of jig insertion holes 15 are provided on the same circumference, and two jig insertion holes 15 facing each other are used for opening and closing. It is also possible to adopt a configuration in which the two projections of 1 can be inserted simultaneously.

With the above-described configuration, similarly to the so-called turn-up type lid, the lid 6 is placed on the lid mounting portion of the upper opening for draining, and a plurality of jigs are provided at locations near the outer periphery of the upper surface of the lid 6. By inserting a jig for opening and closing into the hole 15 and turning the lid 6 slightly in the circumferential direction, it can be easily closed and fixed. Further, a jig for opening and closing can be inserted into the jig insertion hole 15 and the lid 5 can be easily opened by slightly turning the lid 5 in the opposite direction.

The earth and sand accumulated in the jig insertion hole 15 provided on the upper surface of the lid 5 can be easily used by utilizing the mud removal groove 16 which is obliquely raised from the bottom of the jig insertion hole 15 to the upper surface of the lid 6. On the upper surface of the lid 6, it can be further taken out. The mud removal groove 16 is not a large groove that crosses the upper surface of the lid 6, and does not spoil the appearance even if mud is buried.

[0030]

[Effect of device]

 As described above, according to the present invention, like the so-called turn-up type drainage scavenger lid, the lid is placed on the lid mounting portion of the upper opening of the drainage basin, and the location near the outer periphery of the top surface of the lid. By inserting a jig for opening and closing into a plurality of jig insertion holes provided in the and rotating the lid slightly in the circumferential direction, the cleaning port can be easily closed and the lid can be securely fixed. The cleaning port can be easily opened by inserting the jig into the jig insertion hole and turning the lid slightly in the opposite direction.

The earth and sand collected in a plurality of jig insertion holes provided near the outer periphery of the upper surface of the lid can be easily removed by utilizing the mud removal groove that is obliquely raised from the bottom of the jig insertion hole to the upper surface of the lid. The upper surface of the lid can be further taken out. Note that the mud removal groove is not a large groove that crosses the top surface of the lid, and even if mud is buried, it does not spoil the appearance.

[Brief description of drawings]

FIG. 1 is a plan view of an embodiment.

FIG. 2 is a sectional view of an essential part of one embodiment.

FIG. 3 is a plan view of another embodiment.

FIG. 4 is a sectional view of a conventional drainage basin.

FIG. 5 is a sectional view of a main part of a conventional drainage basin.

[Explanation of symbols]

 1 Drainage 2 Drainage line 3 Drainage main body 4 Standing pipe 5 Cleaning port 6 Lid 7 Lid receiving frame 8 Locking protrusion 9 Disc part 10 Cylindrical part 11 Vertical groove 12 Horizontal groove 13 Locking groove 14 Mounting surface 15 Jig insertion Hole 16 mud removal groove

Claims (1)

[Scope of utility model registration request] 1. A drainage port lid that can be removed by putting it on the lid mounting part of the upper opening of the drainage basin, turning it a little in the circumferential direction to lock and fix it, and turning it a little in the opposite direction to release the lock and remove it. There is a plurality of jig insertion holes near the outer periphery on the top surface of the lid and a mud removal groove that is diagonally raised from the bottom of the jig insertion hole to the top surface of the lid. Cleaning port lid.