JPH0715883Y2 - Lid receiving frame for cold regions - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lid receiving frame for cold regions, and more particularly to a lid formed by bending the upper surface of a brim edge extending in the outer peripheral direction to bare the upper surface of the lid receiving frame. Regarding receiving frame.

[0002]

2. Description of the Related Art Japanese Utility Model Application 54-131467
-44896), the flange edge extending in the outer peripheral direction of the upper portion of the lid receiving frame is formed horizontally and the surface is smooth, and the outer end portion of the flange edge is bent slightly downward to allow the lid receiving frame to be bent. It is described as a frame. Then, an arrow is displayed on the upper surface of the lid receiving frame, and an arrow is also displayed on the surface of the lid that is fitted to the lid receiving frame so that the two arrows are aligned with each other, so that the underground buried frame installed below the The flow direction of the fluid flowing inside is clearly specified. Thus, a mountain-shaped protrusion is provided on the side end surface of the lid to match the arrow of the lid, and a V-shaped recess into which the protrusion of the lid is fitted is provided on the side end surface of the lid receiving frame. Arrows are displayed at the places where the protrusions and the recesses are provided, and the lid is prevented from rotating by fitting the protrusions and the recesses in a concavo-convex shape.
Further, the side end surface of the lid receiving frame, the lid receiving step portion, and the back edge portion of the lid are machined so that the lid is closely fitted to the lid receiving frame.

[0003]

[Problems to be Solved by the Invention] Since the upper surface of the lid receiving frame (flange) is formed horizontally, the snow on the lid receiving frame (flange) in cold regions is compacted by the passage of vehicles. It is difficult to remove snow, and when removing snow, the snow removal plate of the snow removal vehicle rubs against the ground surface, so that the snow removal plate often collides with the outer end portion of the brim to damage the place. In addition, since the surface of the lid receiving frame (flange) is smooth, there is a problem that when the surface of the lid receiving frame is exposed on the ground surface in the summer, a pedestrian slips. Further, the side end surface of the lid receiving frame is provided with a recess, but when the side end surface and the lid receiving stepped portion are machined, there is no protrusion so that they can be easily processed without any trouble. However, since a protrusion is provided on the side end surface of the lid, machining cost is high and machining cost is lacking and machining cost is significantly increased if machining is performed while avoiding the protrusion. If machining of the side end surface is neglected, a gap is created between the lid receiving frame and the lid, and sliding of the lid occurs due to the passage of the vehicle, both of which wear early and the lid falls below the ground surface. .

[0004]

A lid receiving frame, which is provided so as to surround an upper portion of a lid receiving stepped portion formed in a circular receiving frame and has a brim edge which is exposed on the upper surface, is provided around the lid receiving frame. By providing at least two or more slopes to the edge, the flange edge is formed into a curved surface that gradually slopes downward from the upper portion of the lid receiving step portion to the outer peripheral direction, and the outer end portion thereof is downwardly moved. A long bend is formed to form a hanging part, and a concave portion is provided on the bent surface that is exposed on the upper surface, and a concave portion to which the outer protruding portion of the locking rod of the lid fits is formed on the horizontal surface of the lid receiving step portion. On both sides of the recess, which sandwich the recess, there are locking projections to which the projections vertically mounted on the lid fit, which are slightly lower than the horizontal plane of the lid receiving step, and the inner peripheral surface of the step. And a lid receiving frame for cold regions, which projects inward in the centripetal direction from the center to contact the lid receiving step with the lid receiving step portion. A protrusion is vertically provided near the edge of the rear surface, and the locking rod is inserted through the protrusion in the centripetal direction, and the outer protrusion of the locking rod is outwardly brought into contact with the lid receiving step. The above-mentioned problems are solved by fitting the protruding lid.

[0005]

Therefore, in the lid receiving frame having the above-mentioned structure for the cold region, since the brim edge surface which is bare on the upper surface is bent, the snow on the brim edge is easily peeled off, and the outer edge portion thereof is Since the drooping portion is formed, even if the snow removing plate of the snow removing vehicle collides, the place will not be damaged. Further, the recesses on the surface of the brim increase the slip resistance when bare on the ground surface in the summer, so that a passenger car passing through the upper surface of the lid receiving frame does not cause a slip accident. Moreover, when the lid receiving frame and the lid are fitted together, the outer protrusion of the locking rod inserted through the protrusion on the rear surface of the lid slides on the lid receiving step of the lid receiving frame while sliding and rotating, When the outer protrusion falls into a recess provided in the lid receiving frame, rotation is prevented, and the lid receiving stepped portion that is machined to form a smooth surface and the lid back surface edge portion and side end surface are closely fitted. To do.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 7, the inner peripheral surface is L
In the circular lid receiving frame 1 made of iron, which is formed in a shape to form the lid receiving step portion 2, and the brim edge 3 is extended outward to expose the upper surface of the lid receiving step portion 2 barely, the brim edge 3 Is the lid receiving step 2
In order to form a curved surface having a gradual downward slope from the upper part of the lid receiving frame 1 to the curved surface, the upper surface is provided with slopes 3a and 3b, and the surface is provided with a groove 14 as a short recess. A large number of concentric recesses are provided, and arrows 9 indicating the fluid direction are provided. Further, the outer end portion of the brim 3 is formed by bending downwardly to form a hanging portion. The horizontal surface 2a of the lid receiving step portion 2 is provided with a recessed portion 6, and locking projections 7, 7 are provided on both sides of the horizontal surface 2a sandwiching the recessed portion 6 at a position slightly lower than the horizontal surface 2a in the centripetal direction. Collide inward.
Reference numeral 8 is a reinforcing rib vertically provided on the back surface of the lid receiving frame 1. Then, the entire surface of the lid receiving step portion 2 is machined to form a smooth surface.

A protrusion 11 is formed near the rear edge of the circular lid 10.
And the locking rod 12 made of a bolt is inserted into the protrusion 11 in the centripetal direction, and the outer protrusion 12a of the locking rod 12 is inserted.
Is engaged between the locking projections 7, 7 protruding outward from the lid receiving step portion 2 in a length for engaging with the recess 6 formed in the lid receiving step portion 2 and projecting the projection portion 11 inward from the lid receiving step portion 2. By making the lid 10
It is possible to prevent the rotation and the pop-out of the. Protrusion 11
Should be provided at a position separated from the contact surface between the lid 10 and the lid receiving step portion 2, that is, at a position vertically extending toward the rear edge of the lid 10 and engaged between the locking projections 7, 7. By the lid 10
And all contact surfaces of the lid receiving step portion 2 are machinable. An antitheft wedge 13 is fixed to the inner protrusion of the locking rod 12, and the other end of the wedge 13 is fixed to a convex portion 18 provided on the back surface of the lid receiving frame 1.

As another embodiment, as shown in FIGS. 8 to 11, the inner peripheral surface of the horizontal surface 2a of the lid receiving step portion 2 is L.
It is cut into a shape to form the inner lid receiving step 2b. A flange 19a is extended to the upper edge of the inner lid receiving step portion 2b, and a shallow dish-shaped inner lid 19 which is a recessed portion 19a is formed by recessing a part of the side wall in the centripetal direction. A pair of L-shaped guide members 20 are erected on the inner bottom surface of the inner lid 19, and a pair of guide rails 20a are provided so as to project in parallel. A name plate 21 is provided over the inner wall surface of the guide members 20 and the guide rails 20a. Insert and remove freely.

As shown in FIG. 12, the inner lid receiving step portion 2b in the above-described embodiment has a built-in opening meter for the opening device for confirming the opening / closing degree of the valve rod 22a of the sluice valve 22 from the ground. The opening meter inner lid 19c formed by vertically arranging the meter unit 23 on the lower surface thereof can be fitted, and the opening meter drive shaft 24 and the valve rod 22a can be connected by the connecting rod 25 to be used integrally.
Although the brim 3 in each of the above-described embodiments has its upper surface formed into a curved surface by the two slopes 3a and 3b, the number of the inclined surfaces forming the curved surface is not limited to this, and it is essential that the number be 2 It suffices that the surface is formed of more than one surface, and the concave portion on the surface is not limited to the groove shape. Further, the inner lid 1 in the above embodiment
The shapes of 9 and 19 are not limited to this, and any shape may be used as long as it can be locked to the inner lid receiving step portion 2b.

[0010]

As described above, according to the present invention, since the brim 3 which is exposed on the upper surface of the lid receiving frame 1 is formed by the slopes 3a and 3b into a curved surface having a gradual downward slope in the outer peripheral direction thereof. In a cold region, even if snow accumulates on the upper surface of the lid receiving frame 1 and a vehicle passes through and the snowfall is compacted, the snow removing plate of the snow remover smoothly moves from the ground surface to the brim 3 and the lid receiving frame is moved. Snow can be peeled off without impacting 1 itself,
Even if the snow removal plate collides with the side surface of the lid receiving frame 1, the hanging portion of the brim edge 3 which is long and bent downward prevents the lid receiving frame 1 from being damaged.

Further, the groove 14 as a recess provided on the surface of the brim 3 increases the slip resistance when exposed barely on the ground surface in the summer, and particularly, in the rainy weather, it passes through the upper surface of the lid receiving frame 1. It is intended to prevent a slip accident of a train car.

Further, since all the contact surfaces of the lid receiving frame 1 and the closing lid 10 can be easily machined to form smooth surfaces, it is economical and production cost can be reduced. When the lid 10 is fitted, the outer projection 12a of the locking rod 12 inserted into the projection 11 of the lid 10 moves while sliding on the horizontal surface 2a of the lid receiving step 2, The recessed portion 6 is recessed, and the lid receiving frame 1 is fitted tightly in the correct position. Then, since the outer protrusion 12a remains on the horizontal surface 2a at positions other than the normal position, the both never fit tightly. Furthermore, when the cover is tightly fitted, the protrusion 11 of the closing lid and the engaging protrusions 7, 7 of the lid receiving frame are combined with the projections and depressions to reliably prevent the lid from rotating and popping out.
Since all the contact surfaces are machined, there is no gap between the lid and the lid receiving frame, and neither is worn or damaged nor rattles.

Further, an inner lid receiving step portion 2b provided on the lid receiving frame 1
When the inner lid 19 is fitted to the inner lid 19 and the nameplate 21 is attached to the inner lid 19, specify the water supply direction, the valve type, the valve opening direction, the area where the sluice valve 22 acts, etc. on the nameplate 21. You can At this time, the nameplate 21 has the guide rails 20a, 20a.
Since it is placed on the guide member 20, it can be easily engaged with and disengaged from the guide members 20, 20, and there is no fear that the described items will be lost because the surface of the nameplate 21 does not contact the inner bottom surface of the inner lid 19. In addition, when the opening gauge for the opener is attached to the inner lid 19c for the opening gauge,
The valve can be opened and closed easily from the ground, and the valve can be operated easily, and the valve opening and closing degree can be read to prevent the valve from being over-tightened or insufficiently tightened, so that the valve can be properly opened and closed. Moreover, when the recessed portion 19b of the inner lid 19 is gripped, the inner lid 19 can be easily attached and detached, and the locking projections 7, 7 are located in the space formed by the recessed portion 19b, and Since the chain 13 that locks the lid 10 is hung, the lid 10 can be fitted tightly.

[Brief description of drawings]

FIG. 1 shows a lid receiving frame for a cold region according to the present invention, and FIG.
3 is a sectional view taken along line AA in FIG.

FIG. 2 is a plan view of the same.

FIG. 3 is a bottom view of the same.

FIG. 4 is an enlarged view taken along the line BB in FIG.

FIG. 5 is an enlarged view showing a state in which the outer protrusion is engaged.

FIG. 6 is a cutaway vertical sectional view of an essential part showing a state where a lid and a lid receiving frame are tightly fitted together.

FIG. 7 is a bottom view of the same.

FIG. 8 is a plan view showing another embodiment.

9 is a cross-sectional view taken along the line AA in FIG.

FIG. 10 is a vertical cross-sectional view of a main part showing a state in which an inner lid is fitted to a lid receiving frame.

FIG. 11 is a vertical cross-sectional view of a main part showing a state in which the lid is fitted into the lid receiving frame and the inner lid is fitted below the lid.

[Fig. 12] Fig. 12 shows another example of use of an underground valve chamber in which an opening meter unit is hung on an opening meter inner lid, and a valve rod of a sluice valve and an opening meter drive shaft are connected by a connecting rod. FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Lid receiving frame 2 Lid receiving stepped portion 2a Horizontal surface 3 Collar edge 3a Tilt 3b Tilt 6 Recess 7 Locking projection 10 Closing lid 11 Projection 12 Locking rod 12a Outer projection

Claims (1)

[Scope of utility model registration request] Receiving a lid provided <br/> surrounds the upper part of the lid receiving stepped portion formed in a circular accepted frame with out naked on the upper surface Rutsubaen is formed by circumferentially
In the frame, by at least two surfaces or inclined it is attached to the Tsubaen, formed on the bending curved surface the collar edge is gradually falling gradient toward the outer periphery from the upper portion of the cover receiving stepped portion Rutoto
The outer end is bent downward to form a hanging part, and
A lid receiving frame for cold regions, which is characterized in that a concave portion is provided on a curved surface that is exposed on the upper surface of the cover.