CN2460568Y - Anti-theft light manhole cover - Google Patents

Abstract

The utility model relates to a manhole cover used in municipal engineering at cities. A lock core is arranged on the body of the manhole cover, and the inner end of the lock core corresponds to the back side of the cover body and is connected with a lock sheet of which both ends are respectively hinged with the inner ends of the lock rods. Lock bolts of the outer ends of the two lock rods extend out of both ends of the cover body and are positioned in lock grooves of the bottom surface of a pedestal of the cover body, and the lock grooves correspond to the positions of both sides. The utility model causes the manhole cover and an anti-theft lock to be organically and integrally combined, and the anti-theft effect is good. The manhole cover of the utility model is made of improved MC nylon materials which substitute for cast iron. The utility model has the characteristics of light weight, low cost, high load bearing, wear and corrosion resistance, easy color addition, beautiful color, etc., is not easy to deform and break, and increases the environmental compatibility, and the utility model does not rust.

Description

Antitheft lightweight inspection shaft lid

The utility model relates to inspection shaft lid used in the municipal engineering of a kind of city.

Used inspection shaft lid does not all have anti-theft feature in the existing urban road, and the time has because of the inspection shaft lid stolenly, and the life security that jeopardizes people takes place the phenomenon that the pedestrian falls into inspection shaft.In addition, existing inspection shaft lid is the cast iron manufacturing, its Heavy Weight, and waste material, inconvenience is used in transportation, and corrosion resistance and toughness are all relatively poor, nor attractive in appearance.

The purpose of this utility model is exactly in order to address the above problem, and provides a kind of and has anti-theft feature and be that the antitheft lightweight inspection shaft that material is made covers with improvement nylon.

Technical solution of the present utility model:

A kind of antitheft lightweight inspection shaft lid, it includes the inspection shaft cap body, it is characterized in that on the inspection shaft cap body, being provided with lock core, this lock core the inner, the back side of corresponding lid is connected with locking plate, the locking plate two ends are inner hinged with two locking bars respectively, and the whole dead bolt that links to each other in two locking bar outer ends stretches out the locked groove that the lid two ends are positioned at lid base end face correspondence two side positions when lock core lock.

The utility model organically is combined as a whole the inspection shaft lid with theftproof lock, usually can't open after making the inspection shaft lid install, the maintenance personal safeguards to be needed when changing just can open with private key, so make the inspection shaft lid possess excellent antitheft function, overcome the phenomenon that falls into inspection shaft because of the stolen pedestrian of making of inspection shaft lid.In addition, inspection shaft lid of the present utility model adopts the modified MC nylon material to replace cast iron and makes, and in be lined with reinforcement bar, make the utility model inspection shaft lid have in light weight, cost is low, carrying is high, the characteristics such as harmony of wear-resisting, not yielding and fracture, corrosion-resistant, non-corrosive, easy additive color, color beauty, increase and environment.It is the regeneration product of inspection shaft lid.

Fig. 1 is the front schematic view of the utility model lid and lid base thereof.

Fig. 2 is the reverse side schematic diagram of the utility model lid.

Fig. 3 is the cover body structure schematic diagram that the utility model adopts the Magnetic lockwork structure.

Fig. 4 is the structure for amplifying and the private key schematic diagram of the utility model Magnetic lockwork structure.

As Fig. 1,2, the utility model includes inspection shaft cap body 1, characteristics of the present utility model are, lid 1 can be by the modified MC nylon material, integral body is cast with the reinforcing bar 21 of 10mm in it, is provided with lock core 2 on inspection shaft cap body 1, and these lock core 2 the inners, the back side of corresponding lid 1 are connected with locking plate 3, locking plate 3 two ends are inner hinged with two locking bars 4 respectively, and the whole dead bolt 5 that links to each other in two locking bars, 4 outer ends stretches out the locked groove 7 that lid 1 two ends are positioned at corresponding two side positions in lid base 6 bottom surfaces when lock core 2 lockings.When inserting lock core 2 rotations with private key, it drives its inner locking plate 3 and reverses, then locking plate 3 just drives two locking bars 4 and makes the inside rectilinear motion that takes in, and the dead bolt 5 that makes their terminations is thrown off in the locked groove 7 of lid base 6, but then this moment, the inspection shaft cap body 1 was in open mode.Otherwise the dead bolt 5 of two locking bars 4 is positioned at the locked groove 7 of lid base 6, and lid 1 is in can't open mode, plays the antitheft effect of inspection shaft lid.

Lid 1 of the present utility model also can adopt the Magnetic lockwork structure, as Fig. 3,4, on inspection shaft cap body 1, have bar shaped lockhole 8, reverse side in corresponding lockhole 8 positions of lid 1 is provided with Magnetic lockwork 9, this Magnetic lockwork 9 is by cylinder plate 10, magnetic pin 11 and turn on square column 12 and constitute, turning on square column 12 integral body is connected on the surface of cylinder plate 10, it just in time is positioned at the bar shaped lockhole 8 of lid 1, cylinder plate 10 by connecting bolt 12 and fixed head 13 for being rotatably connected, fixed head 13 is positioned at the below of cylinder plate 10, its two ends are connected by set bolt 14 and lid 1, on cylinder plate 10, be provided with two magnetic pin via holes 15, correspondingly the correspondence position at fixed head 13 is provided with two lock holes 16 one to one, two magnetic pins 11 are positioned at two pin via holes 15 of cylinder plate 10, their the following two corresponding lock holes 16 that are positioned at fixed head 13 that correct, to guarantee that Magnetic lockwork 9 can not be opened, the surperficial two ends of cylinder plate 10 also are articulated with two locking bars 4, the dead bolt 5 of two locking bars, 4 outer ends stretches out the locked groove 7 that lid 1 two ends are positioned at corresponding two side positions in lid base 6 bottom surfaces when locking, correspondingly, the special-purpose magnetic key 17 of Magnetic lockwork 9 is a body of rod, its lower end is a bar shaped slab 18 that matches with lid 1 bar shaped lockhole 8, these bar shaped slab 18 bottoms have the square column hole 19 that square column 12 matches of turning on the cylinder plate 10 with Magnetic lockwork 9, and the square column hole 19 of bar shaped slab 18 is enclosed within when turning on the square column 12, and the position of two pin via holes 15 of corresponding Magnetic lockwork 9 cylinder plate 10 of its bar shaped slab 18 is installed with two magnetism sticks 20 respectively.Like this, when need are opened inspection shaft cap body 1, the bar shaped slab 18 of special-purpose magnetic key 17 lower ends is penetrated in the bar shaped lockhole 8 of lid 1, its square column hole 19 just in time is enclosed within turning on the square column 12 of Magnetic lockwork 9, at this moment, because the effect of two magnetism sticks 20 of bar shaped slab 18, the magnetic pin 11 that their magnetic force will be positioned at 10 liang of pin via holes 15 of cylinder plate of Magnetic lockwork 9 picks up, make them throw off two corresponding lock holes 16 of fixed head 13, at this moment, reverse private key 17, it is just turned on square column 12 by 19 drives of square column hole and reverses, turning on reversing of square column 12 just makes the cylinder plate 10 that links to each other with its one reverse, the reversing of cylinder plate 10 just drives two locking bars 4 and makes the inside rectilinear motion that takes in, the dead bolt 5 of their terminations is thrown off in the locked groove 7 of lid base 6, because when special-purpose magnetic key 17 reverses, the just in time transposition of bar shaped slab 18 of its lower end, then the two ends of bar shaped slab 18 are against on the inner surface of lid 1, and because lid 1 adopts modified MC nylon and interior cast steel muscle 21 to make, the hard amount of its matter is light, so lift special-purpose magnetic key 17, can at an easy rate inspection shaft cap body 1 be opened, otherwise then lid 1 can be shut reliably, anti-theft effect is very good.

Claims (3)

1, a kind of antitheft lightweight inspection shaft lid, it includes the inspection shaft cap body, it is characterized in that on the inspection shaft cap body, being provided with lock core, this lock core the inner, the back side of corresponding lid is connected with locking plate, the locking plate two ends are inner hinged with two locking bars respectively, and the whole dead bolt that links to each other in two locking bar outer ends stretches out the locked groove that the lid two ends are positioned at lid base end face correspondence two side positions when lock core lock.

2, by the described antitheft lightweight inspection shaft lid of claim 1, it is characterized in that lid by the modified MC nylon material, integral body is cast with fine steel rib in it.

3, by the described antitheft lightweight inspection shaft lid of claim 1, it is characterized in that lid adopts the Magnetic lockwork structure, on the inspection shaft cap body, have the bar shaped lockhole, reverse side in the corresponding lockhole position of lid is provided with Magnetic lockwork, this Magnetic lockwork is by cylinder plate, magnetic pin and turn on square column and constitute, turning on square column integral body is connected on the surface of cylinder plate, it just in time is positioned at the bar shaped lockhole of lid, cylinder plate by connecting bolt and fixed head for being rotatably connected, fixed head is positioned at the below of cylinder plate, its two ends are connected by set bolt and lid, on cylinder plate, be provided with two magnetic pin via holes, correspondingly the correspondence position at fixed head is provided with two lock holes one to one, two magnetic pins are positioned at two pin via holes of cylinder plate, their the following two corresponding lock holes that are positioned at fixed head that correct, the surperficial two ends of cylinder plate also are articulated with two locking bars, the dead bolt of two locking bar outer ends stretches out the locked groove that the lid two ends are positioned at corresponding two side positions of lid base end face when locking, correspondingly, the special-purpose magnetic key of Magnetic lockwork is a body of rod, its lower end is a bar shaped slab that matches with lid bar shaped lockhole, this bar shaped slab bottom has the square column hole that square column matches of turning on the cylinder plate with Magnetic lockwork, and the square column borehole jack of bar shaped slab is on turning on square column the time, and the position of two pin via holes of the corresponding Magnetic lockwork cylinder plate of its bar shaped slab is installed with two magnetism sticks respectively.

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