CN2637563Y - Theft-proof manhole cover - Google Patents

Abstract

The utility model provides a burglar proof well lid. An eccentric position of a lock tongue is provided with a key hole and is extended to two sides of a cover body. The key hole of the lock tongue and the corresponding key hole of the inner side of the cover body are respectively connected with a radial long hole. The utility model also comprises a key matched with the key hole. The key comprises a key bar, a key tube and a key head. One end of the key bar is provided with a handle, while the other end of the key bar is provided with an axial key head slot and l communicated with some central part. Openings of two parts of upper and lower are arranged at two opposite sides of the key bar, and the key head passes through the middle part. The middle point of the key head is articulated with the middle part of the key head slot. One end of the key bar is inserted into the key tube. Two sides of the key tube are provided with an axial long hole corresponding to the key head, and an upper end of one of the long holes is provided with a leverage hook which bends inward inside the upper half of the key head slot. A pipe handle is arranged at outer side of the upper part of the key tube. The utility model has the advantages of good security, simple structure, flexible opening and convenient usage.

Description

A kind of anti-stealing manhole cover

Technical field

The utility model relates to urban operating mechanism, particularly a kind of anti-stealing manhole cover.

Background technology

Existing well lid has only simple lock construction, on well lid, be provided with flat hole, as long as have the similar items such as iron wire of quarter bend just well lid can be opened with one, its confidentiality is bad, so the well lid of the underground installation in the city is often lost, not only cause potential safety hazard, national wealth is suffered a loss, tap water is stolen after being unlocked as the tap water well lid.

Summary of the invention

The purpose of this utility model just provides a kind of novel anti-stealing manhole cover, with solve existing well cover lock confidentiality bad, cause often stolen problem of well lid.

The technical solution of the utility model is: a kind of anti-stealing manhole cover, comprise lid, theftproof lock is equipped with in inboard at the edge of this lid, this theftproof lock comprises lock housing and dead bolt, in the cavity parallel of lock housing, be provided with dead bolt with lid, eccentric position on this dead bolt has keyhole and runs through lid and lock housing, and the keyhole that the keyhole of dead bolt reaches the lid inboard corresponding with it all is connected with radially slotted hole; Also comprise and the supporting key of described lockhole, this key case spatula bar, spoon pipe and spoon head, one end of spoon bar has handle, be provided with a spoon groove vertically in the other end of spoon bar, certain middle part radially communicates, and two-part opening passes a spoon head respectively in the opposite both sides of spoon bar about it at the middle part, the mid point of spoon head is hinged at a spoon groove middle part, and this end of spoon bar penetrates in spoon pipe; The axial long hole that both sides on the spoon pipe have and described spoon head is corresponding has in the upper end of a slotted hole to bend towards group colluding in the described spoon groove first half, is provided with the pipe handle in spoon pipe upper outside.

The edge of described dead bolt is provided with two positioning recess, differs 180 degree angles between two positioning recess; Described lock housing is made of groove on the lid and groove lid, is provided with the flexible alignment pin that cooperates with described positioning recess at the edge of described groove.

The upside of one end of described spoon head has an inclined-plane.

The utility model has the advantages that: because the hole of the keyhole on the corresponding dead bolt of well lid upside is a small sircle hole, can not passes with things such as rectangular iron wires, and not have the bar of quarter bend dead bolt can not to be rotated, its confidentiality greatly improves.And key of the present utility model can conceal the spoon head in the groove, insert keyhole after, a spoon pipe and the relative stretching of spoon bar can be transferred to the spoon head vertical with the spoon rod axis, the interior turn dead bolt that gets final product of keyhole that is inserted into dead bolt is opened well lid.Simple in structure, open flexibly, easy to use.

Description of drawings

Fig. 1 is the axial cross-sectional schematic of the utility model key;

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

Fig. 3 is that the spoon head of key conceals into the pilot process schematic diagram in the spoon groove;

Fig. 4 is that the spoon head of key conceals into the structural representation in the spoon groove;

Fig. 5 is the structural representation of the utility model lid inboard;

Fig. 6 is the right view of Fig. 5;

Fig. 7 is the partial enlarged drawing at C place among Fig. 5;

Fig. 8 is the B-B sectional view of Fig. 7.

The specific embodiment

Referring to Fig. 1-Fig. 4, key case spatula bar 2 of the present utility model, spoon pipe 4 and spoon 10, one end of spoon bar 2 has handle 1, be provided with the spoon of a two parts up and down groove 7 and 11 vertically in the other end of spoon bar 2, these two parts have opening in the opposite both sides of spoon bar 2 respectively, and their middle part radially communicates, and pass spoon 10 at the middle part, the mid point of spoon head is hinged at a spoon groove middle part by articulated axle 9, and spoon bar 2 these ends penetrate in the spoon pipe 4; The axial slotted hole 6 and 12 that both sides on spoon pipe 4 have and described spoon 10 is corresponding has in the upper end of right side slotted hole 6 to bend towards and group colludes 8 a described first half spoon groove 7 in, is provided with two relative pipe handles 3 in the upper outside of spoon pipe 4.

Referring to Fig. 5-Fig. 8, the inboard, edge of lid 14 of the present utility model is provided with theftproof lock, and this theftproof lock is made up of lock housing and dead bolt 17.The lock housing of embodiment is connected and composed by screw 20 by the groove 21 of lid 14 inboards and groove lid 18 among the figure, form a flat cavity between the two, be provided with dead bolt 17 within it, eccentric position on this dead bolt has keyhole 171, and the keyhole 181 that the keyhole 171 of dead bolt and the groove corresponding with it cover on 18 all has radially slotted hole; The circular hole 141 corresponding with keyhole 171 arranged in lid 14 outsides.

Differ 180 ℃ (are the center of circle with the keyhole) between 19, two positioning recess 19 of two positioning recess being provided with on the edge of described dead bolt 17; Be provided with the flexible alignment pin 15 that cooperates with described positioning recess 19 at the edge of described groove, there is spring 151 its bottom.

Upside at an end of described spoon 10 has an inclined-plane 5, is beneficial to dial collude 8 with its dial-out.

Operating principle of the present utility model is as follows:

Referring to Fig. 2 and Fig. 3, when with spoon bar 2 during with 4 relative insertion of spoon pipe, the right-hand part downside of spoon 10 is inclined upwardly its right-hand member, referring to Fig. 3 by the promotion that makes progress of the lower end of spoon pipe right side slotted hole 6.Continue to insert a spoon bar 2, spoon 10 is just concealed in the spoon groove 7 and 11 fully, and just can insert key in the keyhole 141,171,181 of well lid this moment.And then with spoon bar 2 and the 4 relative stretchings of spoon pipe, the right-hand member of spoon 10 colludes dialling of spoon pipe right side under 8 the stirring to extrinsic deflection, after vertical, located by the upper end of the slotted hole 12 in spoon pipe left side, to on the key carry with handle 1 this moment, spoon 10 is entered in the radial hole of the keyhole 171 on the dead bolt 17 by the keyhole 181 on the groove lid 18 of the downside of lid 14, rotary handle 1 just can rotate dead bolt 17, under the effect of alignment pin 15, behind Rotate 180 °, the part fond of gossip of dead bolt 17 is screwed into interlayer inside, and well lid just can take out from crib.

Claims (3)

1, a kind of anti-stealing manhole cover, comprise lid, it is characterized in that: theftproof lock is equipped with in the inboard at the edge of this lid, this theftproof lock comprises lock housing and dead bolt, in the cavity parallel of lock housing, be provided with dead bolt with lid, eccentric position on this dead bolt has keyhole and runs through lid and lock housing, and the keyhole that the keyhole of dead bolt reaches the lock housing corresponding with it all is connected with radially slotted hole; Also comprise and the supporting key of described lockhole, this key case spatula bar, spoon pipe and spoon head, one end of spoon bar has handle, be provided with a spoon groove vertically in the other end of spoon bar, certain middle part radially communicates, and two-part opening passes a spoon head respectively in the opposite both sides of spoon bar about it at the middle part, the mid point of spoon head is hinged at a spoon groove middle part, and this end of spoon bar penetrates in spoon pipe; The axial long hole that both sides on the spoon pipe have and described spoon head is corresponding has in the upper end of a slotted hole to bend towards group colluding in the described spoon groove first half, is provided with the pipe handle in spoon pipe upper outside.

2, anti-stealing manhole cover according to claim 1 is characterized in that: be provided with two positioning recess on the edge of described dead bolt, differ 180 degree angles between two positioning recess; Described lock housing is made of groove on the lid and groove lid, is provided with the flexible alignment pin that cooperates with described positioning recess at the edge of described groove.

3, anti-stealing manhole cover according to claim 1 is characterized in that: the upside at an end of described spoon has an inclined-plane.

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