CN201095771Y

CN201095771Y - Anti-theft device for steel manhole cover

Info

Publication number: CN201095771Y
Application number: CNU200620111522XU
Authority: CN
Inventors: 聂勋文
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-10-13
Filing date: 2006-10-13
Publication date: 2008-08-06
Anticipated expiration: 2016-10-13

Abstract

The utility model discloses a steel basement well cover anti-theft advice, which comprises a basement well cover and a corner key handle. The basement well cover has the key points that: a key extension hole is arranged on the basement well cover; an anti-theft lock is installed near the key extension hole arranged at the bottom face of the basement well cover; a lug at the upper part of the anti-theft lock is fixed at the centre of the bottom face of the basement well cover; the bottom face edge of the basement well cover is symmetrically provided with a plurality of U-shape brackets; a plurality of locking pins are extended at two ends of the anti-theft lock; the locking pins pass through the cavities of the U-shape brackets. The corner key handle has the key points that: the handle is arranged on a shaft level; a shafting bearing is arranged on the shaft level; a gear wheel is arranged at the corner of the shaft level; a plurality of screw cap covers are arranged at two ends of the handle; a key sleeve is arranged at the front end of the handle. The steel basement well cover anti-theft advice has the advantages of simple structure, good anti-theft effect, convenient opening, waterproof and corrosion resistant performance, lower cost, easy operation and long service life.

Description

Iron and steel manhole cover anti-theft device

Technical field

The utility model belongs to anti-theft device, specifically, is a kind of iron and steel manhole cover anti-theft device.

Background technology

Inspection shaft covers the inspection shaft mouth that is widely used in network of underground in urban construction, be the facility of convenient relevant industry to the essential indwelling of maintenance management institute of its pipe network, unlatching when the inspection shaft lid should conveniently need, prevent from again to damage and theft, to become the trap on the road after the inspection shaft lid is stolen, and bring danger for pedestrian and vehicle pass-through.Now domestic widely-used iron and steel class inspection shaft lid, various places cause the people to fall after often having the inspection shaft lid stolen, and wheel is absorbed in waiting and causes the car incident of hindering of speaking sarcastically to report on newspaper, TV, causes heavy losses and injury to the country and people's lives and properties.Domesticly in recent years also occurred some manhole cover anti-theft devices in succession, but structure is too simple, can both open with hook-shaped little iron wire, anti-theft effect is very poor, and the stolen phenomenon of well lid is not solved at all.Some manhole cover anti-theft devices have also appearred in developed country in succession, and are high in technological content, exist cost too high, the domestic problem that can't promote.

The utility model content

Technical problem to be solved in the utility model is to provide a kind of manhole cover anti-theft device of with low cost, good anti-theft effect.

The technical solution of the utility model is as follows: a kind of iron and steel manhole cover anti-theft device comprises inspection shaft lid and corner key handle.Its key is: described inspection shaft covers and is provided with key and stretches into the hole, the inspection shaft lid bottom surface of stretching into the hole by this key is provided with theftproof lock, described theftproof lock is provided with keyhole, this theftproof lock has extended upward journal stirrup theftproof lock has been fixed on inspection shaft lid bottom surface central authorities, be arranged with " U " type support near described inspection shaft lid bottom edge, should be connected with inspection shaft lid bottom surface by " U " type support two legs, described theftproof lock two ends are extended with lock pin, and this lock pin passes the cavity of described " U " type support.Described lock pin extend into the below of inspection shaft inner chamber boss circle, and inspection shaft and inspection shaft are covered fixing the pinning, adopts the principle of rolling screen door lock in the usually said cylinder lock of people, opens as rolling door, and key rotates from interstitial hole, stretches and open the inspection shaft lid in two.Lack because the relevant industry in city uses inspection shaft lid quantity to have to have more, same key can be opened one group of lock when many production taked was locked, and avoided the too many inconvenience management of key use.This device on original inspection shaft lid basis the cost increase seldom, relative cost is cheap, it is also convenient to open, lockset is a cylinder lock, the key of unlatching must be the key of coupling, joins that to get the higher key anti-theft effect of ratio of precision better, very practicality is beneficial to popularization.

In order to prevent to get rusty, lock pin makes with stainless steel material, and the cross section is circular, even " U " type support is not a stainless steel, the time has been grown corrosion, but lock pin is little with " U " type support contact point, can easily open in the same old way.

It is the circular port of first half radius greater than the Lower Half radius that described key stretches into the hole, be milled with screw thread in its Lower Half, there is the bolt that stretches into hole coupling with described key to screw in and clogs the aperture, also be provided with the water-tight packing ring between bolt and the aperture, anti-sealing stretches into the hole by key and enters the corrosion lockset, and this bolt top has back-out and the screw-in that foursquare groove makes things convenient for bolt.

Other has the side horizontal direction of the described theftproof lock of a kind of scheme that keyhole is set, and this keyhole next door is positioned at described inspection shaft and covers and have key and stretch into the hole, and key stretches into inspection shaft lid bottom surface between hole and the theftproof lock and is provided with to key and stretches into the baffle plate that the hole tilts.Need the corner key handle when opening the inspection shaft lid, key is installed on the corner key handle, stretch into the hole from key and enter and unblank.The baffle plate that tilts also has the water effect of well keeping off the rain, and prevents the lock core corrosion.

The laterally inclined keyhole that is provided with downwards that also has the described theftproof lock of a kind of scheme, can ponding even be tilted to down lock core water inlet yet, this keyhole next door is positioned at described inspection shaft and covers and have key and stretch into the hole, and key stretches into inspection shaft lid bottom surface between hole and the theftproof lock and is provided with to key and stretches into the baffle plate that the hole tilts.It is key operated that this scheme inspection shaft lid needs the corner key handle to load onto equally, and the baffle plate of inclination works the water effect of keeping off the rain, and prevents the lock core corrosion.

Simultaneously in order to reach the antirust effect of better waterproof, being locked in when producing with the stainless steel is shell, and lock core must be made with rush-resisting materials such as stainless steels entirely, injects with senior lubricant in the lock core, also can corrosion even have water or aqueous vapor to enter lock core at ordinary times.The lock pin that stretch out at relatively large well lid two ends can be made as two.

Said corner key handle in above-mentioned, be that anti-theft lock for inspection well cover side horizontal direction is provided with the kit that two kinds of schemes of keyhole must be used with being tilted to down, its practical novel technical scheme is as follows: a kind of by the unblank key handle of direction of transformation, it is the corner key handle, its key is that described corner key handle outer tube is that 60 degree are to the curved steel pipe of 120 degree, two axostylus axostyles are housed before and after the inside of steel pipe, on two axle pavilions bearing is installed, two axle pavilions are sentenced tooth sector at the steel pipe inside lock and are connected, bearing is pushed down with the cap nut enclosing cover in curved steel pipe two ends, two axostylus axostyles are drawn a circle to approve in handle, pacify key cover (folder) on the handle front end axostylus axostyle, key cover (folder) is gone up the dress key.On the handle rear end axostylus axostyle handgrip is installed.

Beneficial effect: the utlity model has simple in structure, good anti-theft effect, unlatching convenient, implement easily, characteristics such as cost is lower, processing is more prone to, the corrosion resistant effect of good waterproof is arranged simultaneously, more durable in use under the environment out of doors.

Description of drawings

Fig. 1 is the structural representation of the utility model inspection shaft lid; It is the structural representation of embodiment 1;

Fig. 2 is the structural representation of embodiment 2;

Fig. 3 is the structural representation of embodiment 3;

Fig. 4 is the structural representation of embodiment 4.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

Embodiment 1

As shown in Figure 1, the utility model iron and steel manhole cover anti-theft device, 2. the inspection shaft lid is provided with key and stretches into the hole 3., stretching into hole inspection shaft 3. by this key 2. covers the bottom surface and theftproof lock is housed 4., 2. 4. theftproof lock cover with inspection shaft, and 1. the bottom surface has certain intervals, block keyhole 5. in case fall silt when opening, 5. 4. described theftproof lock be provided with keyhole, 4. this theftproof lock has extended upward journal stirrup and 6. 4. theftproof lock has been fixed on inspection shaft and covers 2. bottom surface central authorities, 2. described inspection shaft covers bottom edge is arranged with " U " type support 8., should " U " type support 8. two legs cover 2. with inspection shaft that the bottom surface is connected, 7. described theftproof lock 4. two ends is extended with lock pin, and 7. this lock pin passes the cavity that 8. described " U " type support forms.Described key stretches into the hole and 3. is the circular port of first half radius greater than the Lower Half radius, be milled with screw thread in its Lower Half, have and stretch into the bolt that 3. mates in the hole with described key and screw in and clog the aperture, this bolt top has foursquare groove, the lock pin that stretches out to two ends in the lock can be single, also can be two.

2. the inspection shaft lid is placed on the inspection shaft inner convex platform circle, inspection shaft cover theftproof lock that 2. bottom surface is provided with 4. the lock pin that stretches out of two ends 7. pass the cavity that 2. 8. described " U " type support form with the inspection shaft lid, its termination extend into inspection shaft inner convex platform circle below, 2. whole inspection shaft lid is fixed and is locked in the well, and will open inspection shaft and cover 2. the time, by key operated lock, 7. the theftproof lock 4. lock pin at two ends withdraws to the lock core direction, and 7. lock pin no longer is positioned at boss circle below.

Embodiment 2

As shown in Figure 2, present embodiment is all identical with embodiment 1, different is that 5. described theftproof lock side horizontal direction 4. is provided with keyhole, key stretch into the hole 3. and the inspection shaft of theftproof lock between 4. cover 2. bottom surface and be provided with to key and stretch into plate washer that 3. hole tilt 9., open and need the corner key handle when 2. inspection shaft covers, key is installed on the corner key handle, stretches into the hole from key and 3. enter and unblank.

Embodiment 3

As shown in Figure 3, present embodiment is all identical with embodiment 1,5. 4. laterally inclined of different is described theftproof lock be provided with keyhole downwards, key stretch into the hole 3. and the inspection shaft of theftproof lock between 4. cover 2. bottom surface and be provided with to key and stretch into plate washer that 3. hole tilt 9., open and need the corner key handle when 2. inspection shaft covers, key is installed on the corner key handle, stretches into the hole from key and 3. enter and unblank.

Embodiment 4

As shown in Figure 4, the corner key handle of the utility model iron and steel manhole cover anti-theft device, the handle outer tube is corner 90 degree steel pipes, be provided with 2. b of axostylus axostyle in the steel pipe, axostylus axostyle 2. b go up to be installed 1. 6. f of a and tooth sector of bearing, the steel pipe two ends with the screw cap 4. d push down 1. a of bearing, with axostylus axostyle 2. b delineation in steel pipe, handle rear portion axostylus axostyle 2. b is equipped with 3. c of handgrip outward, 2. the anterior axostylus axostyle of handle is equipped with 5. e of key cover on the b, key cover 5. e is gone up the peace key, rotates 3. c of handgrip, through tooth sector 6. f change rotation direction and open theftproof lock.

Claims

1. iron and steel manhole cover anti-theft device, comprise inspection shaft lid (2.) and corner key handle, it is characterized in that described inspection shaft lid (2.) is provided with key and stretches into hole (3.), theftproof lock (4.) is equipped with in inspection shaft lid (2.) bottom surface of stretching into hole (3.) by this key, described theftproof lock (4.) is provided with keyhole (5.), this theftproof lock (4.) has extended upward journal stirrup (6.) theftproof lock (4.) has been fixed on inspection shaft lid (2.) bottom surface central authorities, inspection shaft lid (2.) bottom edge is arranged with " U " type support (8.), should be connected with inspection shaft lid (2.) bottom surface by " U " type support (8.) two legs, described theftproof lock (4.) two ends are extended with lock pin (7.), and this lock pin (7.) passes the cavity of described " U " type support (8.).

2. according to the described iron and steel manhole cover anti-theft of claim 1 device, it is characterized in that described key stretches into hole (3.) and is the circular port of first half radius greater than the Lower Half radius, be milled with screw thread in its Lower Half, have the bolt that stretches into hole (3.) coupling with described key to screw in and clog the aperture, this bolt top has foursquare groove.

3. according to the described iron and steel manhole cover anti-theft of claim 1 device, the side horizontal direction that it is characterized in that described theftproof lock (4.) is provided with keyhole (5.), and inspection shaft lid (2.) bottom surface that key stretches between hole (3.) and the theftproof lock (4.) is provided with the baffle plate (9.) that stretches into hole (3.) inclination to key.

4. according to the described iron and steel manhole cover anti-theft of claim 1 device, inspection shaft lid (2.) bottom surface that the laterally inclined keyhole (5.) that is provided with downwards that it is characterized in that described theftproof lock (4.), key stretch between hole (3.) and the theftproof lock (4.) is provided with the baffle plate (9.) that stretches into hole (3.) inclination to key.

5. according to the described iron and steel manhole cover anti-theft of claim 1 device, it is characterized in that described corner key handle comprises bearing (1. a), axostylus axostyle (2. b), handgrip (3. c), screw cap (4. d), key cover (5. e), tooth sector (6. f), bearing is installed on the described axostylus axostyle (2. b), and (1. a), the corner connects with tooth sector (6. f).

6. according to the described well cover antitheft device of claim 5, it is characterized in that there is screw cap (4. d) at the outer tube two ends, the handle front end is equipped with key cover (5. e), and handle rear end is equipped with handgrip (3. c).