JPH0530288U - Sewage box lid frame - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent water from leaking under the receiving frame and to withstand a heavy load. [Structure] A lid receiving portion 11 into which a lid can be fitted, and an outer circumferential surface of the lid receiving portion 11 projecting over the entire circumference and one or more circumferential grooves 121 are formed on the surface. A water reservoir 12, a draining portion 13 that projects downwardly around the entire circumference below the tip of the water reservoir 12, and a draining portion 13 that projects downwardly around the entire circumference below the lid receiving portion 11 and crosses the draining portion 13. And a bite portion 14 in which a lower receiving frame 15 is formed in an inverted U shape.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a receiving frame for a lid of a sewage basin.

[0002]

[Prior Art]

 As shown in FIG. 3, a conventional receiving frame 1 for a lid 2 of a sewage basin is embedded in an upper block 3 made of concrete, which constitutes the sewage basin, at the time of its manufacture. Since No. 1 contracts after expansion, the raw concrete will be solidified by that much, and when water enters the gap between the back side of the lid receiving frame 1 and the block 3 and the water freezes in winter. A crack is generated in the block 3 contacting the lower receiving frame 4.

Moreover, when a heavy load such as an automobile is applied to the lid 2, the sitting of the lid receiving frame 1 is further deteriorated and rattling occurs.

[0004]

[Problems to be solved by the device]

 An object of the present invention is to provide a lid receiving frame for a sewage basin in which water does not leak to the lower side of the receiving frame.

Another object of the present invention is to provide a lid receiving frame for a sewage basin in which a heavy load received under the receiving frame can be dispersed.

[0006]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the lid receiving frame of the sewage basin of the present invention has a lid receiving portion 11 to which the lid can be fitted, and a laterally extending outer side of the lid receiving portion 11 extending over the entire circumference and having a surface 1 One or two or more circumferential grooves 121 are formed in the water sump portion 12, a water draining portion 13 that projects downwardly over the entire circumference below the tip of the water sump portion 12, and a downward direction below the lid receiving portion 11. It has a water draining portion 13 and a recess portion 14 which forms a lower receiving frame 15 having an inverted U-shaped cross section.

[0007]

【Example】

 An embodiment of the present invention is shown in FIGS.

The lid receiving frame of the present invention example is composed of a lid receiving portion 11, a water reservoir portion 12, a draining portion 13, and a biting portion 14, and is embedded in a concrete block 30.

The lid receiving portion 11 has an L-shaped cross section into which the lid 20 can be fitted, and the water storage portion 12 is a flange-like shape that projects laterally outside the lid receiving portion 11 over the entire circumference. And three circumferential grooves 121 are formed on the surface thereof. The draining part 13 has a ring shape that projects downwardly over the entire circumference below the front end of the water storage part 12, and the bite part 14 has a ring shape that projects downwardly over the entire circumference under the lid receiving part 11. The lower part of the receiving frame 15 having an inverted U-shaped cross section is formed with the draining part 13.

[0010]

[Action]

 The lid cover frame of the present invention made of iron has a space between the outer side of the lid support part 11 and the concrete block 30 at the time of manufacturing, and even if moisture leaks from the gap, it is located between the circumferential grooves 121 of the water storage part 12. Moisture accumulates in the water, and it is difficult for water to leak below it, and even if water leaks out, it will enter the lower receiving frame 15 with an inverted U-shaped cross section formed by the drainer 13 and the bite 14. There is no possibility that the concrete block 30 supporting the lower part 15 of the receiving frame is cracked due to freezing of water.

Further, the lower receiving frame 15 has a large surface area and is stably supported by the concrete block 30 under the lower receiving frame 15. Even if a heavy load is applied to the lid 20 and the lid receiving portion 11, the lower receiving frame 15 There is no risk of rattling by breaking the lower block 30 and sinking.

[0012]

[Effect of the device]

 As described above, the sewage basin lid receiving frame of the present invention has a structure that does not allow moisture to enter the bottom 15 of the receiving frame and bears a heavy load, and can solve all the defects of the conventional sewage basin lid receiving frame. Was successful.

[Brief description of drawings]

FIG. 1 is a front view showing a part of the embodiment of the present invention in section.

FIG. 2 is a partially enlarged sectional view of the present invention.

FIG. 3 is a sectional view of a conventional example.

[Explanation of sign]

 11 Lid receiving part 12 Water collecting part 121 Circumferential groove 13 Draining part 14 Biting part 15 Lower receiving frame

Claims (1)

[Scope of utility model registration request] 1. A lid receiving portion 11 in which a lid can be fitted.
And a water sump portion 12 that laterally projects over the entire circumference on the outer side of the lid receiving portion 11 and has one or more circumferential grooves 121 formed on the surface, and below the tip of the water sump portion 12. Direction and the draining portion 13 that projects over the entire circumference, and the lid receiving portion 11 that projects downward over the entire circumference and that is opposite to the draining portion 13 in cross section U
A sewage sill cover receiving frame, comprising: a bite-in portion 14 in which a lower portion 15 of the receiving frame is formed.