CN2214498Y

CN2214498Y - Concealed well cover anti-theft lock

Info

Publication number: CN2214498Y
Application number: CN 95205505
Authority: CN
Inventors: 王祖魁
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-03-06
Filing date: 1995-03-06
Publication date: 1995-12-06
Anticipated expiration: 2005-03-06

Abstract

The utility model relates to a concealed well cover anti-theft lock, comprising a lock and a key, wherein, the lower sides of the both sides of the well cover are fixed to a bolt and the lock; a circular hole, a bolt baffle plate, and a safety baffle plate are on the same diametrical line on the well cover; a rack lock tongue is arranged in the lock; a gear whose inner side is provided with a touching block is arranged on a position where is engaged with the rack lock tongue; a handle is fixed on the upper end of a key lever; a T-shaped slot is arranged on one side of the key lever, and tongue slots are arranged on the both sides of the lower end; a hand held bolt is arranged on a base with a pull rod; a pressing spring is arranged on the base; a spacer basket is arranged on the lower end of the pull rod; a pin shaft which is pierced with double-tongue pieces and the spacer basket is fixed to the both sides of the tongue slot. The utility model has the advantages of simple structure, no rust, and safety.

Description

Concealed well cover anti-theft lock

The utility model relates to the lockset of using on a kind of manhole cover, particularly a kind of manhole cover theftproof lock, and it is applicable to various types of manhole covers.

The manhole cover that uses is discoid ironcasting mostly at present, is to have two apertures with center symmetry place on the well lid face, so that open and close well lid, well lid is outstanding to be placed on the thrust mouth of well head, does not have any blocking device again, therefore, not antitheft.If in a single day manhole cover is lost, not only directly impaired economically, and promptly unhygienic, influence the appearance of the city, the safety of serious threat Pedestrians and vehicles again, particularly the post and telecommunications manhole cover is lost, and then may cause cable to be cut, and communication is forced to major accidents such as termination.More than existing less than one be that anti-theft effect is poor, no matter be cylinder type, or the pin formula, the key that all lacks relatively insurance is supporting with it, almost can both disclose out easily; The 2nd, not antirust, existing lock sample all adopts cast iron or other metal material, in case especially pellet shot from a slingshot corrosion, with regard to Qi Bukai, can't lock; The 3rd, dustproof, anti-silt, not antifreeze.The lock sample that has is adorned a lock box mostly specially in order to make outside lock body is not exposed to, and so both ponding made dirt sand become silted up in box again, and keyhole is sealed, and then was difficult to open and close.

The purpose of this utility model is a kind of manhole cover theftproof lock of developing at above deficiency, it comprises lock and private key, lock is the material that adopts macromolecular compound PE1010, private key drives the gear rotation that is provided with in the lock and pulls out system, make dead bolt unlatching, closure, not only fundamentally solved the antitheft problem of manhole cover, but also solved this lock, remedied the defective that like product can't overcome from a series of problems that exist down in high humidity environment.

The utility model is achieved in that the manhole cover theftproof lock comprises lock ﹠ key, wherein is fixed with latch 4 below the side on the well lid 1, and latch plate washer 3 is fixed on the walling crib 2; Upper cover of lock 9 is fixed on below the opposite side of well lid 1, safe plate washer 10 is contained on the walling crib 2, circular hole on the well lid 1, latch plate washer 3, safe plate washer 10 is on same diameter line, tooth bar dead bolt 8 is contained in the lock body 5, on the position that is meshed with tooth bar dead bolt 8 in lock body 5 gear 6 is housed, and on the inboard of gear 6 collision block is arranged; Handle 17 is fixed on the upper end of the shank of the key 14, on one side of the shank of the key 14 "T"-shaped groove is arranged, on the both sides, position of the lower end of the shank of the key 14 and the same bus of "T"-shaped groove the tongue piece groove is arranged, portable bolt 15 is contained on the pedestal that is fixed with pull bar 13, stage clip 16 is contained on the pedestal, and positioning framework 12 is contained in the lower end of pull bar 13, two tongue pieces 11, positioning framework 12 is installed on the bearing pin, and bearing pin is fixed on the both sides of tongue piece groove.

The utility model can be achieved in that also the collision block on gear 6 inboards can be four collision blocks.

The utility model can also be achieved in that lock of the present utility model is to adopt macromolecular compound PE1010 material.

Good effect of the present utility model is: simple in structure, easy for installation, not corrosion has safe and reliable, cheap, practical characteristics and can solve the problem that manhole cover is lost preferably.

Description of drawings.

Fig. 1 is the mounting structure schematic diagram of the utility model user mode.

Fig. 2 is the structure sectional view of the utility model lock.

Fig. 3 is the structure vertical view of the utility model lock.

Fig. 4 is the user mode schematic diagram of the utility model key.

Fig. 5 is the structural representation of the utility model key.

Wherein:

1, well lid 2, walling crib 3, latch plate washer 4, latch

5, shank 6, gear 7, lock lower cover 8, tooth bar dead bolt

9, upper cover of lock 10, safe plate washer 11, two tongue piece 12, positioning framework

13, pull bar 14, the shank of the key 15, portable handle 16, stage clip

17, handle

The utility model is described in further detail below in conjunction with accompanying drawing.

As Fig. 1,2,3,4,5, shown in, with screw lock body 5 is fixed on below the right side of well lid 1, lower left at well lid 1 is fixed with latch 4, then safe plate washer 10, latch plate washer 3 are fixed on the both sides of walling crib 2, the circular hole on safe plate washer 10, latch plate washer 3 and the well lid 1 is installed on the same diameter line.When buckling manhole cover if desired, should be earlier an end of 1 time fixing latch plate washer 3 of well lid be put down, latch 4 is inserted in the latch plate washers 3, the other end with manhole cover puts down again.Then in the circular hole on the shank of the key 14 insertion manhole covers, portable bolt 15 is pulled in the "T"-shaped groove, and this moment, pull bar 13 drive positioning frameworks 12 made two tongue pieces 11 separately, clockwise rotated handle 17 again, promote tooth bar dead bolt 8 and enter in the safe plate washer 10, make manhole cover locking.Then portable bolt 15 is pulled out in "T"-shaped groove, the effect of pressured spring 16 makes portable bolt 15 get back to original position, at this moment two tongue piece 11 closures, and the shank of the key 14 can be extracted out.When opening manhole cover if desired, in the circular hole that the shank of the key 14 can be inserted on the manhole cover, portable bolt 15 is pulled in the "T"-shaped groove, pull bar 13 drives positioning framework 12 and makes two tongue pieces 11 separately, inhour is rotated handle 17 again, and tooth bar dead bolt 8 is dialled back original position in safety plate washer 10, and can open manhole cover this moment, repeat the aforesaid operations program, the shank of the key 14 can be taken out.

Claims

1, a kind of manhole cover theftproof lock comprises lock ﹠ key, it is characterized in that: be fixed with latch (4) below the side on the well lid (1), safe plate washer (3) is fixed on the walling crib (2); Upper cover of lock (9) is fixed on below the opposite side of well lid (1), safe plate washer (10) is contained on the walling crib (2), circular hole on the well lid (1), latch plate washer (3), safe plate washer (10) is on same diameter line, tooth bar dead bolt (8) is contained in the lock body (5), on the position that is meshed with tooth bar dead bolt (8) in lock body (5) gear (6) is housed, and on the inboard of gear (6) collision block is arranged; Handle (17) is fixed on the upper end of the shank of the key (14), on one side of the shank of the key (14) "T"-shaped groove is arranged, on the both sides, position of the lower end of the shank of the key (14) and the same bus of "T"-shaped groove the tongue piece groove is arranged, portable bolt (15) is contained on the pedestal that is fixed with pull bar (13), stage clip (16) is contained on the pedestal, and positioning framework (12) is contained in the lower end of pull bar (13), two tongue pieces (11), positioning framework (12) is installed on the bearing pin, and bearing pin is fixed on the both sides of tongue piece groove.

2, manhole cover theftproof lock according to claim 1 is characterized in that: the collision block on gear (6) inboard can be four collision blocks.

3, manhole cover theftproof lock according to claim 1 is characterized in that: lock of the present utility model is to adopt macromolecular compound PE1010 material.