CN2126856Y - Anti-stealing manhole cover - Google Patents

Abstract

The utility model relates to an anti-stealing well cover. A locking mechanism is arranged between the well cover and a well mouth. The anti-stealing well cover is composed of a lock core, a lock strip, a pressing spring, a pressing cover, a locknut, etc. The center of the well cover is provided with a shoulder hole, the lock core is arranged in the shoulder hole, and the middle portion of the lock core is sheathed with the lock strip. The lower portion of the lock core is sheathed with the pressing spring, the pressing cover and the locknut, and the inner flange of the well mouth is provided with two gaps correspondingly. Both ends of the lock strip can be spirally arranged at the lower portion of the flange of the well mouth through the gaps so as to obtain the purpose of locking the well cover. The utility model has the advantages of high safety, malposition avoidance, theft protection, etc. The anti-stealing well cover can be widely used for preventing the well covers of the underground pipelines for municipal water supply and water drainage, communication cable engineering, heat pipelines, sanitary works, gardens, etc., from being stolen.

Description

Anti-stealing manhole cover

The utility model belongs to the improvement of existing well lid, uses when being specially adapted to underground utilities hole cover safe antitheft such as municipal plumbing, communication cable engineering, heating pipeline, environmental sanitation, gardens.

At present, latch-up-free mechanism between common well lid and the well head, just well lid is placed on the well head inward flange, because flange is less, the well lid inconsistent phenomenon when using, reality easily takes place, owing to there is not locking mechanism, the stolen phenomenon of well lid takes place sometimes, the former well lid dislocation easily causes the generation of vehicle and personal injury, and latter's well lid is stolen not only to cause vehicle and personal injury accident, has also increased the maintenance cost in correlation engineering field.

The purpose of this utility model provides and is provided with locking mechanism between a kind of well lid and the well head and not only can have prevented the well lid dislocation but also can prevent the anti-stealing manhole cover that well lid is stolen.

The utility model is achieved in that and is provided with a locking mechanism between well lid and well head, by lock core, bolt, stage clip, gland, compositions such as locknut, be provided with a shoulder hole at the well lid center, be provided with a lock core in it, lock core middle part horizontal set one bolt, the lock core bottom is socketed with stage clip, gland and locknut, for making the bolt two ends can be spun on well head flange bottom, play the effect of locking well lid, be provided with two corresponding breach at well head inward flange position, then the two ends of bolt can be spun on well head inward flange bottom by breach, make well lid and well head be locked as one.The top that is shaped as of lock core is the triangle tapered end, the lock core middle part lacks the shape locking bar for circle, and the lock core bottom is a screw rod, is provided with circle at the bolt center and lacks lockhole, the circle that the scarce lockhole of its circle is socketed on the lock core middle part lacks on the shape bolt, is socketed with stage clip, gland and locknut on the screw rod of bolt bottom successively.During actual the use,, drive the lock core rotation, make bolt pass through well head inward flange breach,, not only can prevent the well lid dislocation but also can prevent that well lid is stolen Manhole cover lock with special-purpose cam sleeve spanner rotation tapered end.

Advantages such as compared with the prior art the utility model has safe and reliable, antitheft.

The utility model will be further described below in conjunction with accompanying drawing:

Fig. 1 is well lid and well head latch-up structure schematic diagram

Fig. 2 is the well lid structural representation

Fig. 3 is Fig. 2 schematic top plan view

Fig. 4 is the well head schematic diagram

Fig. 5 is Fig. 4 schematic top plan view

Fig. 6 is the lock core structure schematic diagram

Fig. 7 is Fig. 6 A-A schematic diagram

Fig. 8 is Fig. 6 B-B schematic diagram

Fig. 9 is the bolt structural representation

Figure 10 is the gland schematic diagram

Referring to accompanying drawing: the locking mechanism between well lid 2 and the well head 3 is formed (see figure 1) by lock core 1, bolt 7, stage clip 4, gland 5, locknut 6 etc.; Process a shoulder hole 8(at well lid 2 centers and see Fig. 2, Fig. 3), lock core 1 is housed in shoulder hole 8, lock core 1 middle part level is equipped with bolt 7, is socketed with stage clip 4, gland 5 and locknut 6 in lock core 1 bottom; At well head inward flange 15 positions, add two corresponding breach 9(and see Fig. 4, Fig. 5); Bolt 7 two ends can be spun on flange 9 bottoms by breach 9, and triangle tapered end 10 is made on lock core 1 top, and its middle part lacks shape locking bar 11 for circle, and the lock core bottom is that screw rod 12(sees Fig. 6, Fig. 7, Fig. 8); Bolt 7 middle parts have a circle and lack lockhole 13, are socketed on lock core middle part (see figure 9); Having a boss 14(to see Figure 10 on the gland 5) this boss 14 places in the stage clip 4, with special-purpose triangular shaped sleeve rotation tapered end 10, drives bolt and rotates, and well lid and well head are locked, and both safety was antitheft again.

Claims (3)

1, a kind of anti-stealing manhole cover is made up of well lid, well head etc., it is characterized in that, the well lid center is provided with a shoulder hole, is provided with a lock core in it, lock core middle part horizontal set one bolt, the lock core bottom is socketed with stage clip, gland and locknut, is provided with two corresponding breach at well head inward flange position.

2, anti-stealing manhole cover as claimed in claim 1 is characterized in that, lock core top is the triangle tapered end, and the lock core middle part lacks the shape locking bar for the garden, and the lock core bottom is a screw rod.

3, anti-stealing manhole cover as claimed in claim 2 is characterized in that, the bolt center is provided with circle and lacks lockhole.

Images