CN2285323Y

CN2285323Y - Theft-proof well cover

Info

Publication number: CN2285323Y
Application number: CN 96200467
Authority: CN
Inventors: 柴俊来
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-01-12
Filing date: 1996-01-12
Publication date: 1998-07-01
Anticipated expiration: 2006-01-12

Abstract

The utility model relates to a theft-proof well cover which is suitable for an inspection well of the facility of the municipal underground pipe network. The well cover is provided with a connecting plate which is extended outwards in radical direction, and the connecting plate is hinged with a connecting groove which is extended outwards from a well cover base in radical direction. A protection lock which is composed of a rotary shaft and a shifting plug is arranged at the proper position of the well cover. The shifting plug is matched with a locking plate which is arranged at the bottom of an inner flange edge which is fixedly connected with a well cover base. The theft-proof well cover is rotated and opened by a special tool, and a hinge pin and the rotary shaft are respectively installed in an antirust sleeve. The utility model is provided with double insurance of the pin connection of the well cover and the well cover base, and the theft-proof lock device, and the well cover can not be stolen by thieves. The property security of the facility arranged in the inspection well of the underground pipe network can be effectively protected, and the accident of accidental injury of dropping into the well of pedestrians and vehicles can be prevented.

Description

Anti-stealing manhole cover

The utility model relates to municipal underground pipeline facility, refers in particular to a kind of anti-stealing manhole cover that can prevent that well lid from being stolen.

Along with economic development; a large amount of network of underground is installed in the cities and towns urban construction; be used for power supply; supply water; heat supply; give gas and telecom communication; these network of underground need be provided with many observations; inspection-pit; well head will be installed well lid with installation security and road traffic safety in the protection well; existing well lid is generally cast iron quality and from up to down is positioned on the manhole cover base; no anti-theft measure; thereby very easily stolen and be used as scrap iron and sell by the people; and the well head of uncovered very easily enters facility in the addle dirt damage well; more seriously naked well head; very easily cause traffic accident, cause getting injured by a fall of personnel.

The purpose of this utility model is to overcome existing well lid stolen shortcoming easily, and a kind of anti-stealing manhole cover is provided, and the thief can't be set about, to guarantee the property safety and the traffic safety of communal facility.

Used technical scheme, a kind of anti-stealing manhole cover of the present utility model, form by manhole cover base and well lid:

A. well lid has radially overhanging junction plate, and manhole cover base has radially overhanging link slot, and described junction plate embeds in the link slot, is hinged to the lateral shaft that retaining pin is housed to be rotatably connected;

B. on well lid, align the junction plate center line and be provided with protection lock away from the appropriate location of junction plate one side; this protection lock is become with group insert group by rotating shaft; described rotating shaft upper axis crown face is useful on the blind hole of the abnormity that inserts special tool; the thin axle journal in rotating shaft bottom is by stretching out downwards in the circular hole in the recessed box of well lid; insert for described group and be plate shape; be fixed in the rotating shaft lower end; this group plate matches with the latch of the convex flange bottom that is fixed in manhole cover base; this latch is a wedge shape, and its wedge shape size extreme direction is corresponding with group plate rotation direction.

In preferred embodiment; described well lid junction plate and manhole cover base link slot are used for mounting groove and to the circular hole of axle horizontal antirust sleeve are installed; the circular hole that described well lid is used for installing the recessed box of well lid of protection lock rotating shaft is equipped with perpendicular antirust sleeve, and described horizontal, vertical antirust sleeve is made with corrosion resistant high-abrasive material.

The upper surface of described well lid junction plate and manhole cover base link slot and well lid upper surface, manhole cover base upper surface are all at grade.

The well lid recessed box bottom surface of described installation well lid protection lock and dial to insert between the rotating shaft section on the compression cylindrical spring is housed.

Anti-stealing manhole cover of the present utility model has following positive beneficial effect:

1. anti-stealing manhole cover is connected in the structure of manhole cover base and the anti-theft lock device that uses special tool to open with hinge pin, has set up double insurance, the thief can't be pulled down well lid steal.

2. be inclined upwardly after well lid is opened and the angled setting in ground, give vehicle, pedestrian with care mark.

3. easy to install.

4. effectively protect down-hole facility property safety.

5. the accidental injury accident in pedestrian, the vehicle back drop that effectively prevents takes place.

Now in conjunction with the accompanying drawings with preferred embodiment;

Fig. 1 is the vertical view of the utility model embodiment

Fig. 2 is the A-A view of Fig. 1.

Fig. 3 is the B-B view of Fig. 1.

Fig. 4 is the C-C partial view of Fig. 1, shows a kind of embodiment of lateral pin.

Fig. 5 is the D-D partial view of Fig. 1, shows a kind of embodiment of protection lock rotating shaft.

Fig. 6 is the elevation of rotating shaft.

Fig. 7 is the vertical view of Fig. 6.

Anti-stealing manhole cover of the present utility model is made up of manhole cover base 1 and well lid 2, sees Fig. 1 Fig. 2 Fig. 3.

Well lid 2 has radially overhanging junction plate 3, and manhole cover base 1 has radially overhanging link slot 4, and described junction plate 3 embeds in the link slot 4, is hinged to the lateral shaft 6 that retaining pin 5 is housed to be rotatably connected.

On well lid 2, align the junction plate center line and be provided with protection lock away from the appropriate location of junction plate one side; this protection lock is by rotating shaft 7 and dial and insert 8 and form; described rotating shaft 7 top spindle noses 9 end faces are useful on the blind hole (for example delthyrium) 10 of the abnormity that inserts special tool and see Fig. 6 Fig. 7; the thin axle journal 11 in rotating shaft 7 bottoms is by stretching out downwards in the circular hole in the recessed box 12 of well lid; described group is inserted 8 is plate shape; be fixed in rotating shaft 7 lower ends; this group plate 8 matches with the latch 13 of the convex flange bottom that is fixed in manhole cover base; this latch 13 is a wedge shape, and its wedge shape size extreme direction is corresponding with group plate 8 rotation directions.

In preferable example; the circular hole that described well lid junction plate 3 and manhole cover base link slot 4 are used for installing lateral shaft 6 is equipped with horizontal antirust sleeve 14 and sees Fig. 4; the circular hole that described well lid 2 is used for installing the recessed box 12 of well lid of protection lock rotating shaft 7 is equipped with perpendicular antirust sleeve 15 and sees Fig. 6, and the corrosion resistant high-abrasive material of described horizontal, vertical antirust sleeve 14,15 usefulness for example make by copper material, plastics etc.

The upper surface of described well lid junction plate 3 and manhole cover base link slot 4 and well lid upper surface, manhole cover base upper surface are all at grade.

In preferred embodiment, the well lid of described installation well lid protection lock recessed box 12 bottom surfaces and dial to insert and on the rotating shaft section between 8 compression cylindrical spring 16 to be housed and to see Fig. 5.

For preventing that dust from stopping up, at the opening of the recessed box 12 of the well lid of described installation theftproof lock dust cap 17 is housed, near the through hole 18 that is shaped on flat on the well lid of recessed box 12, this through hole 18 is used to stretch into pull hook and opens well lid

Claims

1. an anti-stealing manhole cover is made up of manhole cover base and well lid, it is characterized in that:

2. anti-stealing manhole cover according to claim 1; it is characterized in that: the circular hole that described well lid junction plate and manhole cover base link slot are used for installing lateral shaft is equipped with horizontal antirust sleeve; the circular hole that described well lid is used for installing the recessed box of well lid of protection lock rotating shaft is equipped with perpendicular antirust sleeve, and described horizontal, vertical antirust sleeve is made with corrosion resistant high-abrasive material.

3. anti-stealing manhole cover according to claim 1 is characterized in that: the upper surface of described well lid junction plate and manhole cover base link slot and well lid upper surface, manhole cover base upper surface are all at grade.

4. anti-stealing manhole cover according to claim 1 is characterized in that: the well lid recessed box bottom surface of described installation well lid protection lock and dial to insert between the rotating shaft section on the compression cylindrical spring is housed.