JP3445837B2 - Sewage basin cleaning mouth - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning mouth of a sewage basin in which a lid can be set at the upper end of a cleaning mouth pipe according to the inclination and height of the ground surface. . 2. Description of the Related Art When a lid is set on the upper end of a cleaning port pipe rising upward from a sewage basin, the appearance is poor only if the lid does not match the slope or height of the ground surface. But not
There is a danger of tripping over the lid, falling, or being hurt. In view of the above, various methods for setting the lid in accordance with the inclination gradient and height of the ground surface have been conventionally proposed. For example, Japanese Utility Model Laid-Open Publication No. Hei 5-87087 proposes a cleaning opening that adjusts the inclination and height of a lid holding cylinder by adjusting the tightening of an adjuster bolt to make the lid flush with the ground surface. [0003] However, in this conventional cleaning port, the adjuster bolt is inevitably embedded in the pipe wall of the lid holding cylinder so as to penetrate in the axial direction. The tube wall of the holding cylinder body was thick and the weight was bulky, which was not only inconvenient for handling but also inevitably increased the cost. The present invention has been made to solve the above-mentioned problem, and provides a cleaning port for a sewage basin which can be provided at a low cost, is excellent in workability, and can easily set a lid according to the inclination and height of the ground surface. To provide. [0005] The cleaning port of the present invention has a lid holding cylinder body loosely fitted to the upper end of a cleaning port pipe rising upward from a sewage basin via a rubber ring so as to be vertically movable. A lid is detachably mounted on the top of the lid holding cylinder, and a guide rail extending vertically is provided at an appropriate position on the outer periphery of the lid holding cylinder, and a locking piece is slid on the guide rail. It is characterized in that the cover holding cylinder is supported at a predetermined position by engaging the locking piece with the upper end portion of the cleaning port tube. When the pipe is installed on site, the lid holding cylinder loosely fitted to the cleaning port pipe is lifted by hand, and the lid holding cylinder is engaged with a guide rail provided at an appropriate position on the outer periphery of the lid holding cylinder. Move the piece to lock it on the top end of the cleaning tube. Then, the lid holding cylinder is supported by the upper end of the cleaning port tube, and the lid mounted on the upper part of the lid holding cylinder is flush with the ground surface. Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a perspective view of a main part in a state where a lid holding cylinder is supported by a locking piece, and FIG. 3 is a state in which the lid holding cylinder is supported by a locking piece. FIG. 4 is a sectional view of a main part of FIG.
Is a cross-sectional view of a main part showing another embodiment of the present invention, wherein reference numeral 1 denotes a sewage basin, 2 denotes a cleaning mouth pipe, 3 denotes a lid holding cylinder,
Is a rubber ring, 5 is a locking piece, and 6 is a lid. The wastewater basin 1 is integrally formed by injection molding a synthetic resin such as a vinyl chloride resin. A drainage groove 13 is provided at the bottom of a tub body 10 having an open top and a bottom. Have been. A connection port 11 for an inflow pipe and a connection port 12 for an outflow pipe are provided on the side wall of the box body 10 in communication with the drain groove 13. The sewage basin 1 is buried in the ground. The sewage basin 1 is installed at the bottom of a digging groove formed by digging up the ground, and then the sewage pipe P is connected to each of the connection ports 11 and 12. Connect the upstream and downstream ends. On the other hand, the cleaning port pipe 2 is inserted into the upper connection port of the box body 10, and the cleaning port pipe 2 is inserted.
The cover holding cylinder 3 is loosely fitted to the upper end of the cover 3 via a rubber ring 4 so as to be vertically movable and tiltable. The lid holding cylinder 3 is provided with a lid receiving portion 32 by enlarging one end of a short pipe having a diameter slightly smaller than the inner diameter of the cleaning port pipe 2, and providing an outer peripheral surface of the other end. Is two ridges 3
A rubber ring 4 is provided between the protrusions 33 and 33 so as to be in close contact with the inner peripheral surface of the cleaning port tube 2. In addition, the circumference of the lid holding cylinder 3 is
Guide rails 31 that are continuous in the pipe axis direction are provided at positions where the guide rails are equally or three equally divided.
1, a locking piece 5 is slidably mounted. That is,
As shown in FIG. 2, the guide rail 31 is provided on the lid holding cylinder 3.
The projection has a configuration in which a circular cross section is provided at the tip of a protruding ridge protruding from the outer peripheral surface. The grip portion 51 of the locking piece 5 is fitted to the projection so that it can move in the vertical direction. I have. The adjustment of the inclination angle and the height of the lid holding cylinder 3 is performed as follows. First, the lid holding cylinder 3 loosely fitted to the upper end of the cleaning port pipe 2 is lifted by hand, and the lid 6 attached to the lid receiving portion 32 is held on the guide rail 32 while being kept flush with the ground surface. The locking piece 5 is moved along with the locking piece 5 and is brought into contact with the upper end surface of the cleaning port tube 2. Then, as shown in FIG. 3, the pressing force F acts on the distal end of the locking piece 5 under the own weight of the lid holding cylinder 3 and the lid 6, and at the contact portion T with the guide rail 31. Since the pressing force acts, the movement of the locking piece 5 is prevented, and the locking piece 5 is moved.
Thus, the lid holding cylinder 3 is supported on the upper end of the cleaning port tube 2. At this time, if necessary, a non-slip small protrusion may be provided at the end of the guide rail 31 where the grip portion 51 of the locking piece 5 contacts, and other appropriate means that can prevent the movement of the locking piece 5 are used. be able to. After adjusting the inclination angle and height of the lid holding cylinder 3 in this way, backfilling of earth and sand is performed as shown in FIG. 1, and the ground surface is paved with concrete, asphalt or the like. Then, the lid holding cylinder 3 becomes concrete,
The work is completed by being fixed with asphalt or the like. In the above embodiment, the guide rail 31 is used as an example of the ridge provided on the outer peripheral surface of the lid holding cylinder 3, but the present invention is not limited to this configuration. As shown in FIG. 4, a similar effect can be obtained by providing a dovetail groove extending in the vertical direction on the outer peripheral surface of the lid holding cylinder 3 and slidably fitting the locking piece 5a to the guide rail 31a of the dovetail groove. Can be expected. As described above in detail, according to the present invention, since the lid holding cylinder can be made lightweight, it can be provided at a low cost and can be easily handled at the time of construction work. Further, the lid holding cylinder body loosely fitted to the cleaning port pipe is lifted by hand, and the locking piece is moved along a guide rail provided at an appropriate place on the outer periphery of the lid holding cylinder body, so that the lid holding cylinder body is removed. Since the inclination angle and height can be adjusted, construction work on site can be performed extremely easily.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view showing an embodiment of the present invention. FIG. 2 is a perspective view of a main part in a state where the lid holding cylinder is supported by a locking piece; FIG. 3 is a cross-sectional view of a main part in a state where the lid holding cylinder is supported by a locking piece; FIG. 4 is a sectional view of a main part showing another embodiment of the present invention. [Description of Signs] 1 Sewage basin 2 Cleaning mouth tube 3 Lid holding cylinder 4 Rubber ring 5 Locking piece 6 Lid 31 Guide rail

Claims (1)

(57) [Claims 1] A lid holding cylinder (3) at the upper end of a cleaning port pipe (2) rising upward from a sewage basin (1) via a rubber ring (4). Is loosely fitted up and down so that the lid holding cylinder (3)
And a vertically extending guide rail (31) at an appropriate position on the outer periphery of the lid holding cylinder (3).
The locking piece (5) is slidably fitted to 1), and the locking piece (5) is locked to the upper end of the cleaning port tube (2) to move the lid holding cylinder (3) to a predetermined position. Cleaning port for sewage basin characterized by support.