CN2181531Y - Theft-proof split pin type manhole cover - Google Patents

Abstract

The utility model provides a theft-proof split pin type manhole cover which comprises a cover body and a cover seat. The utility model is characterized in that the hem of the cover body is provided with steady braces. The symmetrical point is provided with a split pin shaft and a number ring. The lower part of the split pin shaft is provided with a stop block and a groove. A through hole which has the same shape with the split pin shaft and the stop block is arranged on the number ring. The number ring is sheathed on the groove of the split pin shaft. The external surface of the number ring has a dial. The steady brace and the split pin shaft are respectively inserted into the cover seat, and the split pin shaft is fixed by the number ring, and thus the manhole cover is fixed to achieve the theft-proof purpose.

Description

Theft-proof split pin type manhole cover

The utility model is the improvement to existing manhole cover (being commonly called as the Gu Li lid).

The existing manhole cover (Gu Li lid) that covers on road, though used for many years, it still exists an outstanding shortcoming, does not promptly have anti-theft measure, thereby loses phenomenon and occur repeatedly.Especially lose phenomenon in combination area of city and country area very serious, and losing of manhole cover also can cause pedestrian's the injures and deaths and the damage of car, the wait in expectation technical scheme of antitheft manhole cover of people.

The purpose of this utility model is in order to solve the above-mentioned problem that exists, a kind of antitheft cottor pin formula manhole cover to be provided.It can prevent the generation of robbed or burgled phenomenon effectively, avoids the generation of casualties and vehicle damage phenomenon.

In order to achieve the above object, the utility model comprises lid, cage, it is characterized in that being provided with steady pin in lid edge, in lid, be provided with pin shaft hole, number ring seat with the symmetrical place of steady pin, in pin shaft hole, number ring seat, opening bearing pin, figure ring are housed, opening bearing pin bottom is a stop block, have groove at opening bearing pin and stop block place, have on the figure ring and opening bearing pin and the corresponding to through hole of stop block shape, figure ring is enclosed within the groove of opening bearing pin, is provided with dial at the figure ring external surface.

In order to prevent that the opening bearing pin from getting rusty, opening bearing pin external surface is sprayed with one deck plastic layer.

Advantage of the present utility model is: steady pin and opening bearing pin insert in the cage, block groove with figure ring, and manhole cover will be fixed like this, thereby has prevented the generation of robbed or burgled phenomenon effectively, has avoided pedestrians' the injures and deaths and the damage of vehicle.

Fig. 1 is a sectional drawing of the present utility model.

Fig. 2 is that A of the present utility model is to figure.

Fig. 3 is a lid partial perspective cutaway view of the present utility model.

Fig. 4 is an opening bearing pin stereogram of the present utility model.

Fig. 5 is a figure ring stereogram of the present utility model.

Fig. 6 is a stereogram of the present utility model.

Fig. 7 is a figure ring front view of the present utility model.

(1) lid; (2) figure ring; (3) opening bearing pin; (4) steady pin; (5) installing hole; (6) groove; (7) stop block; (8) through hole; (9) dial; (10) cage; (11) pin shaft hole; (12) number ring seat.

Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, robbed or burgled in order to prevent manhole cover, there is a steady pin (4) in edge at lid (1), is provided with pin shaft hole (11) at the symmetry place of lid (1), number ring seat (12).Opening bearing pin (3) resembles a keyhole shape, and the through hole (8) on the figure ring (2) also is the keyhole shape, so that opening bearing pin (3) is therefrom passed.Figure ring (2) is contained in the number ring seat (12), opening bearing pin (3) passes from through hole (8), rotating figure ring (2) staggers the groove (6) on through hole (8) and the opening bearing pin (3) mutually, stop block (7) is blocked by figure ring (2), opening bearing pin (3) can not be extracted out, and manhole cover just is securely fixed on the lid seat (10) like this.When needs are opened manhole cover, rotate figure ring (2), make two figure rings (2) all be in open position, promptly stop block (7) aligns with through hole (8).For example: it is 6 that a figure ring (2) is opened scale, and it is 8 that another figure ring is opened scale, and then 6,8 when all aliging normal line, and opening bearing pin (3) just can be extracted out, and manhole cover will be opened.

The utility model has solved because of the robbed or burgled variety of issue that brings of manhole cover, and is very useful to people.

Claims (2)

1, a kind of antitheft cottor pin formula manhole cover, it comprises lid (1), cage (10), it is characterized in that being provided with steady pin (4) in lid (1) edge, in lid (1), be provided with pin shaft hole (11) with the symmetrical place of steady pin (4), number ring seat (12), in pin shaft hole (11), opening bearing pin (3) is housed in the number ring seat (12), figure ring (2), opening bearing pin (3) bottom is stop block (7), locate to have groove (6) at opening bearing pin (3) and stop block (7), have on the figure ring (2) and opening bearing pin (3) and the corresponding to through hole of stop block (7) shape (8), figure ring (2) is enclosed within the groove (6) of opening bearing pin (3) and locates, and is provided with dial (9) at figure ring (2) external surface.

2, antitheft cottor pin formula manhole cover according to claim 1 is characterized in that opening bearing pin (3) external surface is sprayed with one deck plastic layer.

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