CN2299092Y

CN2299092Y - Anti-theft manhole cover

Info

Publication number: CN2299092Y
Application number: CN 97223786
Authority: CN
Inventors: 桂振华
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-06-07
Filing date: 1997-06-07
Publication date: 1998-12-02
Anticipated expiration: 2007-06-07

Abstract

The utility model belongs to the field of fittings of underground passage vertical manhole, particularly an anti-theft manhole cover which is composed of a manhole cover, a manhole ring, and a lockset which is fixed on a reinforcing rib arranged at the lower side of the manhole cover. The utility model is characterized in that the lockset comprises a casing, a bolt hole, a lock core hole, a bolt having screw threads and a lock core having a circular gear; the bolt hole and the lock core hole are crossed and communicated in an external casing. The lock core portion is made of nylon material. The utility model has the characteristics of rust resistance, simple structure and convenient open.

Description

A kind of anti-stealing manhole cover

The utility model belongs to the vertical shaft accessory field of underground passage, relates in particular to a kind of well lid of vertical shaft.

On the vertical shaft face of land of various underground passages, the well lid of vertical shaft is installed all at present.For preventing loss, on the walling crib that well lid and vertical shaft are fixedly connected, various locksets are installed all.But these well lid locksets or design are tight, and it is exposed to ground surface, in case blow into sandy soil, just extremely difficulty is opened; Simplicity of design does not have antitheft effect, and lock body, lock core be cast iron materials and make, and opens in case get rusty and be difficult to, and it is very inconvenient to bring to the work of departments such as urban construction.

It is fairly simple that the purpose of this utility model just provides a kind of lock structure, and ambient conditions is not had specific (special) requirements, and antitheft effect is well lid preferably.

The purpose of this utility model is achieved in that

A kind ofly comprise well cover cycle, well lid, well lid lockhole, be fixed in the lockset at well lid downside lockhole place and the anti-stealing manhole cover of the projection on the well lid lower edge, it is characterized in that: lockset is fixed on the reinforcing rib of well lid lockhole downside, with leaving the space between lockhole; Described lockset comprises:

Lockset shell: the dead bolt post hole and the lock core column hole that have mutual vertical side edge to be connected in the housing; The two ends in this lock core column hole are two concentric garden shape steps;

Be threaded the cylindricality dead bolt that inserts in the dead bolt post hole;

Be installed on the lock core in the lock core column hole, comprise: a mandrel, its lower end is fixed with the garden generating gear; The stage body of the be inserted in mandrel upper end of forming by two concentric garden shape table tops; Be inserted in the spring between stage body described in the mandrel and the garden generating gear; Be fixed on the lock core shaft-cup in the second garden shape step of lock core column hole;

Be fixed in the Lock cylinder cover at lockset shell lock core place; The first garden shape step in lock core column hole has hole, a garden, and a post tip is fixed with a rotatable Lock cylinder cover by this hole;

A key that is used to open lockset comprises: the shank of the key and key cylinder.

Its additional technical feature comprises: the upper end of mandrel is the garden axle that is fixed with a spline; Be inserted in the stage body centre bore of mandrel upper end and have spline; Key cylinder is the column casing of wounded in the battle keyway.

The another kind of mode of lock core is: the upper end of mandrel is the triangle axis of a cylinder, and the centre bore that is inserted in the stage body of mandrel upper end is the triangular column hole, and key cylinder is the triangle column casing.

The lock core of lockset is nylon products.

The utility model is compared with prior art, and it is simple that it has a lock structure, and the lock core of lockset is the nylon product so it has not to be afraid of and gets rusty, and opens characteristics easily.

Be further described in detail below in conjunction with the structure and the use principle of accompanying drawing the anti-stealing manhole cover that the utility model proposed:

Fig. 1: the section of structure of anti-stealing manhole cover

Fig. 2: the Facad structure cut-away view of lockset

Fig. 3: the side structure sectional drawing of lockset

Fig. 4: lockset private key structure chart

Fig. 5: the lateral view of the private key of lockset shown in Figure 4

Fig. 6: be the another kind of lock core structure figure of lockset

Fig. 7: for opening the key schematic diagram of lock core shown in Figure 6

Be illustrated in figure 1 as the structure chart of anti-stealing manhole cover, it comprises: the lockhole 4 on well cover cycle 2, well lid 1, the well lid, lockset 3, be fixed on the reinforcing rib 5 of lockhole downside well lid by screw 7, and make lockset with also leaving space 6 between the lid, slip in the well, prevent that soil is husky can't open well lid because of filling up by this space with the convenient sandy soil that fall in the well lid lockhole 4 at mal-condition, the outstanding projection 8 that is fixed as one with well lid, when well lid covered into well cover cycle, it can be interlocked mutually with well cover cycle 2.

As Fig. 2, Figure 3 shows that the front internal construction cut-away view of lockset.Have dead bolt post hole 10 and the lock core column hole 11 that is interconnected in the front of lockset shell 9, there are two steps 12,13 in its lock core column hole 11, and the cylindricality dead bolt 15 that is carved with screw thread 14 inserts in the dead bolt post hole 10.The lower end of lock core mandrel 16 is fixed with a garden generating gear 17, the stage body 18 that centre bore by two steps is carved with spline is inserted in the mandrel 16 that has spline 26, be inserted in a spring 19 at stage body 18 with 17 of garden generating gears, to pack in the lock core column hole 11 by the mandrel 16 that is with stage body 18, spring 19, garden generating gear 17, and make garden generating gear 17 with the screw thread cylindricality dead bolt 15 phase interlocks in the dead bolt post hole.Stage body 18 snaps in the first step 12 in lock core column hole, lock core shaft-cup 20 is fixed in the second step 13.Fig. 4, Fig. 5 are the structure chart of the key of this lockset of unlatching, and it comprises, the key cylinder 25 of shank of the key 24 and wounded in the battle keyway 27.During use, the stage body 18 that will have the wounded in the battle keyway of key cylinder 25 aligned central holes of spline 27 presses down, and rotation can make garden generating gear 17 drive 15 precessions of cylindricality dead bolt, screw out the purpose that reaches open and close.

Fig. 6, Fig. 7 are lockset lock core and the another kind of structure chart of opening this lock core, the mandrel of this lock core is a triangle axis of a cylinder 29, the centre bore of same stage body also is and triangle axis of a cylinder 29 corresponding triangular column holes 30, open the key of this lock core and also be made up of the keyhole of key handle 24 and triangle column casing 28, its installation is identical with the garden axle type lock core of use principle and wounded in the battle key.

The parts of the lock core of listed composition lockset part all adopt nylon products, the phenomenon that it can avoid well lid to get rusty and be difficult to open because of the lock core parts under severe environmental conditions in Fig. 2-Fig. 7.

For preventing that sandy soil from pouring into lock core, then on the first step 12 in the lock core column hole 11 of its shell, bore hole, a garden 22, fix a rotatable lock core garden lid 21 by a post tip 23 by this hole.When unblanking it is outwarded winding, at ordinary times it is covered lock core column hole 11 in case sandy soil pour into.

Claims

1, a kind of anti-stealing manhole cover, comprise well cover cycle, and lid, well lid lockhole, the lockset that is fixed in well lid downside lockhole place and the projection on the well lid lower edge, it is characterized in that: lockset (3) is fixed on the reinforcing rib (5) of well lid lockhole (6) downside, with leaving space (6) between lockhole; Described lockset comprises:

Lockset shell (9): the dead bolt post hole (10) and lock core column hole (11) that have mutual vertical side edge to be connected in the housing; The two ends in this lock core column hole are two concentric garden shape steps (12,13);

Be threaded (14) and insert the interior cylindricality dead bolt (15) in dead bolt post hole (10);

Be installed on the lock core in the lock core column hole (11), comprising: a mandrel (16), its lower end are fixed with garden generating gear (17); The stage body (18) of be inserted in mandrel (16) upper end of forming by two concentric garden shape table tops; Be inserted in the spring (19) between stage body (18) described in the mandrel (16) and the garden generating gear (17); Be fixed on the lock core shaft-cup (20) in the second garden shape step (13) of lock core column hole;

Be fixed in the Lock cylinder cover (21) at lockset shell lock core place; The first garden shape step (12) in lock core column hole has hole, a garden (22), and a post tip (23) is fixed with a rotatable Lock cylinder cover (21) by this hole;

A key that is used to open lockset comprises: the shank of the key (24) and key cylinder (25).

2, anti-stealing manhole cover as claimed in claim 1, the upper end that it is characterized in that described mandrel (16) is for being fixed with the garden axle of a spline (26); Have spline (27) in the described stage body centre bore that is inserted in mandrel upper end; Described key cylinder is the column casing of wounded in the battle keyway.

3, anti-stealing manhole cover as claimed in claim 1, the upper end that it is characterized in that described mandrel (16) are triangle axis of a cylinder (29), and the described centre bore that is inserted in the stage body of mandrel upper end is triangular column hole (30), and described key cylinder is triangle column casing (28).

4,, it is characterized in that the lock core of described lockset is nylon products as the described anti-stealing manhole cover of claim 1-3.