JPH0676481U - Drain lid locking device - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a drain lid locking device that has a good appearance and can ensure safety for pedestrians. [Structure] Grating 2 provided at the opening of the side groove 1
And a chain 10 for connecting the grating 2 to the side groove 1, one end of the chain 10 is connected to the side groove 1 and a locking tool 12 is attached to the other end thereof, and the locking tools 12 face each other. The side plates 12a and 12b are formed in a substantially U-shape and have side plates 12a and 12b.
Claw pieces 14a and 14b that are bent at substantially right angles are formed inside the upper edges of a and 12b, respectively, and a tightening screw 13 is screwed from one side plate 12a to the other side plate 12b. The stopper 12 is inserted from the lower surface side of the grating 2, and the insides of the claw pieces 14a and 14b are hooked on the hook portion 15 arranged in the middle part of the grating 2.
Tighten the tightening screw 13 to grating the locking tool 12 2
Attach to.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a drain lid locking device for connecting a drain lid provided at an opening of a gutter of a road to the gutter, for example.

[0002]

[Prior art]

 For example, gutters are provided on both sides of the road as drainage channels for draining rainwater and the like, and drainage lids such as gratings formed in a grid pattern are attached to the openings of the gutters. And this drain cover is tied to the wall surface of the gutter with a chain for theft prevention.

One end of this chain is fixed to the wall surface of the side groove or the like via an anchor, and the other end is connected to the drain cover via a locking tool. As disclosed in Japanese Utility Model Publication No. 1-41826, the locking tool is formed in an inverted U shape, and the locking tool is inserted from the upper surface side of the drain cover to have the U shape. The bent part is hooked on the main bar that constitutes the drain cover, and the lower end of the bent part is fastened with a screw to attach it to the drain cover.

[0004]

[Problems to be solved by the device]

 However, in such a structure, a part of the locking tool is exposed on the surface of the drain lid, which not only deteriorates the appearance, but also causes a pedestrian to trip over the exposed part by hooking his toes. There is a danger of causing such danger.

The present invention has been made in view of such a point, and an object thereof is to provide a drain lid locking device that has a good appearance and is safe for pedestrians.

[0006]

[Means for Solving the Problems]

 In order to achieve such an object, the present invention comprises a drainage lid provided at an opening of a drainage channel and a locking line for connecting the drainage channel to the drainage channel. Part is connected to the drainage channel, and a locking tool is attached to the other end, the locking tool is formed in a substantially U shape having side plates facing each other, and the upper side edges of these side plates are respectively formed. A claw piece that is bent substantially at a right angle is formed on the inside thereof, and a tightening screw is screwed from the one side plate to the other side plate, and the locking tool is inserted from the lower surface side of the drain cover, Hook the inside of the claw piece to the hooking part located in the middle part of the drain cover, and tighten the tightening screw to lock the claw piece irremovably to the hooking part and attach the locking tool to the drain cover. It was done like this.

[0007]

[Action]

 In such a structure, the locking tool is locked to the hooked portion of the middle part of the drain lid, and therefore the locking tool is not exposed to the surface of the drain lid. For this reason, the surface of the drain cover can be kept flat, which improves the appearance and eliminates the risk of a pedestrian tripping over, thus ensuring safety.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

A first embodiment is shown in FIGS. 1 to 6, and reference numeral 1 is, for example, a gutter as a drainage channel formed on a side portion of a road, and a drainage lid is provided at an opening on an upper surface of the gutter 1. Is provided with a stainless steel grating 2.

As shown in FIG. 2, the grating 2 is formed by combining a plurality of main bars 3 ... And a plurality of cross bars 4 ... In a grid pattern.

Each of the main bars 3 has a plurality of irregularly shaped cutout holes 5 formed at regular intervals, and the cutout holes 5 are positioned vertically and horizontally with respect to each other as shown in FIG. Horizontal edges 6a, 6b that extend horizontally by offsetting, vertical edges 7a, 7b that extend vertically by shifting the positions vertically and horizontally, one end of the horizontal edges 6a, 6b and the vertical edge It is formed in a deformed shape having inclined edges 8a and 8b extending in an inclined shape between the ends of 7a and 7b. Further, the crossbars 4 are formed with cut grooves 9 on both side edges thereof at regular intervals.

At the time of assembling the grating 2, first, the crossbar 4 is held horizontally as shown in FIG. 3, and in this state, the crossbar 4 is inserted into the notch hole 5 of the main bar 3 and the crossbar 4 is inserted. The pair of cut grooves 9, 9 on both sides of 4 are arranged so as to face the inclined edges 8a, 8b of the cutout hole 5.

Next, as shown in FIG. 4, the crossbar 4 is rotated 90 degrees from this state, and the plate surface of the crossbar 4 is brought into contact with the vertical edges 7a and 7b of the cutout hole 5 to be in a vertical state. Stand up. At the time of this rotation, the inclined edges 8a, 8b of the cutout hole 5 relatively enter into the cut grooves 9, 9 of the crossbar 4 to allow the crossbar 4 to rotate. When the crossbar 4 is vertically erected, the cut grooves 9 and 9 are fitted to the upper ends of the inclined edges 8a and 8b to prevent their movement in the longitudinal direction. The grating 2 is assembled in combination with the bar 4.

Reference numeral 10 is a chain as a locking line that connects the grating 2 to the side groove 1, and one end of this chain 10 is connected to the wall surface 1 a of the side groove 1 via an anchor 11. A locking tool 12 is attached to the other end of the chain 10.

The locking tool 12 is formed of a strip-shaped metal plate into a substantially U shape having side plates 12a and 12b facing each other. Then, a tightening screw 13 is inserted from one side plate 12a to the other side plate 12b, and a nut 14 is screwed to a tip portion of the tightening screw 13. Further, claw pieces 14a and 14b which are bent at substantially right angles are formed integrally with the upper edges of the side plates 12a and 12b, respectively.

The grating 2 is provided with a large number of notch openings formed by the notch holes 5 formed in the main bar 3 ... At a portion below the surface thereof, and any notch opening of the notch holes 5 ... It is used as a hook portion 15 for locking the stopper 12.

That is, as shown in FIGS. 1 and 5, the locking tool 12 is hooked on the hook portion 15, and the chain 10 is connected to the grating 2 via the locking tool 12, and the chain 10 The grating 2 is fixed to the side groove 1.

Explaining the procedure for attaching the locking tool 12 to the grating 2, first, the side plates 12a and 12b are opened with the tightening screw 13 loosened, and the locking tool 12 is moved from the lower surface side of the grating 2 in this state. Then, the main bar 3 is inserted inside the side plates 12a, 12b so that the claw pieces 14a, 14b face the hooking portion 15. Then, the side plates 12a and 12b are tightened by the tightening screw 13, the claw pieces 14a and 14b are made to enter the inside of the hooking portion 15, and their leading edges are brought into contact with each other. As a result, the edge of the hook portion 15 is hooked inside the claw pieces 14a and 14b, and the locking tool 12 is locked to the grating 2.

According to such a configuration, the locking tool 12 is locked to the hooking portion 15 of the middle part of the grating 2 and therefore is not exposed to the surface of the grating 2, and therefore the surface of the grating 2 is protected. It can be kept in a flat state, so that the appearance is good, and the danger of tripping a pedestrian can be reliably eliminated, thus improving safety.

FIG. 7 and FIG. 8 show a second embodiment. In this second embodiment, the grating 2 is different from the first embodiment and a plurality of main bars 3 ... Which are arranged in parallel are provided. These main bars 3 are formed by a round bar-shaped cross bar 4 that penetrates the middle part.

A part of the one crossbar 4 is used as a hooking portion 15 for hooking the locking tool 12. That is, in the case of the second embodiment, the locking tool 12 is inserted from the lower surface side of the grating 2 and the hook portion 15 of the crossbar 4 is partially inserted inside the side plates 12a and 12b. The pieces 14a, 14b are hooked on the upper surface side of the hooking portion 15, and in this state, the side plates 12a, 12a are tightened with the tightening screws 13 to lock the locking tool 12 to the grating 2.

Even in such a configuration, since the hooking portion 15 is arranged at a lower portion of the surface of the grating 2, the locking tool 12 is not exposed to the surface of the grating 2 at all. It can maintain a good appearance and ensure safety for pedestrians.

By the way, as shown in FIG. 9, the tightening screw 13 may be excessively tightened so that the side plates 12a and 12b are curved inward in an arc shape against the elastic force thereof. For example, the locking tool 12 can be firmly attached to the grating 2, and the elastic reaction force of the side plates 12a and 12b can prevent the tightening screw 13 from loosening for a long period of time.

[0024]

[Effect of device]

 As described above, according to the present invention, the locking tool is not exposed on the surface of the drain lid, so that a good appearance can be maintained and the safety for pedestrians can be secured. Play.

[Brief description of drawings]

FIG. 1 is a sectional view of a drain lid locking device according to a first embodiment of the present invention.

FIG. 2 is a partially cutaway perspective view of the grating in the drain lid locking device.

FIG. 3 is an exploded perspective view showing a connecting portion between a main bar and a cross bar of the grating.

FIG. 4 is a cross-sectional view of a connecting portion between a main bar and a cross bar of the grating.

FIG. 5 is a front view of a portion in which a locking tool is attached to the grating.

FIG. 6 is an exploded perspective view showing a locking tool in the drain lid locking device.

FIG. 7 is a partially cutaway perspective view of the grating in the drain lid locking device according to the second embodiment of the present invention.

FIG. 8 is a sectional view of a main part of the drain lid locking device.

FIG. 9 is a cross-sectional view showing a state in which each side plate of the locking tool in the drain lid locking device is curved.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Gutter (drainage channel) 2 ... Grating (drainage lid) 10 ... Chain (locking line) 12 ... Locking tool 12a, 12b ... Side plate 13 ... Tightening screw 14a, 14b ... Claw piece 15 ... Hooking part

Claims (1)

[Scope of utility model registration request] 1. A drainage lid provided at an opening of a drainage channel, and a locking line for connecting the drainage channel to the drainage channel, one end of which is connected to the drainage channel, A locking member is attached to the end portion, and the locking member is formed in a substantially U shape having side plates facing each other, and claw pieces that are bent substantially inwardly at the upper end edges of these side plates. Is formed, and a tightening screw is screwed from the one side plate to the other side plate, the locking tool is inserted from the lower surface side of the drain cover, and the inside of the claw piece is set to the middle part of the drain cover. A drain lid locking device, characterized in that a hook is attached to the drain lid by hooking it on a hook portion to be arranged and tightening the tightening screw so as to permanently lock the claw piece to the hook portion. .