CN207469927U - Anti-theft lock and mating L-type section key - Google Patents

Abstract

A kind of anti-theft lock and mating L-type section key.Anti-theft lock includes the several majors such as lock core shaft, locking stem, lower lock core column, lock core shell, lock core rear cover, resetting spring, key guide groove is provided in lock core shaft to be oriented to for key, after key is allowed to rotate 180 degree, into in bullet groove, lock core shaft is designed with lock core axle bumper tongue, by bullet groove hidden lock core inner；Stem, lower lock core column and lock core shaft three lock using rigid connection, lock core rear cover is connect by screw thread with lock core shell, and resetting spring is defined between lock core cylinder and lock core shell；There is longitudinal slide-and-guide item on the outside of locking stem, matched with the slide-and-guide slot on the inside of lock core shell, both limitations can only slide axially.The cross section of matched key is " L " type, and marble hole is below " horizontal stroke "；And it is provided with and the matched gear glossal canal of lock core axle bumper tongue.The utility model has the advantage of：Pellet groove depth is hidden in inside lock core, anti-theft is good；More compact structure, the size of keyhole are relatively small；It is of low cost in low and middle-end application field.

Description

Anti-theft lock and mating L-type section key

Technical field

The utility model is related to the structure of a kind of anti-theft lock and key, the mechanical lock applied to low and middle-end.

Background technology

In the application of low and middle-end lockset, traditional key is mostly the straight key of sheet or cross section key, the straight key of sheet It is divided into as two-sided serrated slot or unilateral sawtooth, the pellet group corresponding to these keys in the keyhole of lock core is straight to be exposed to Outside, it is easy to be opened with the non-key utensil such as iron wire, knitting wool, anti-theft is poor.

Also there is the scheme of proposition " L " type key and lock core in field of lockset.Such as application No. is 200620029769.7 reality With novel, using " L " type key, but its key transversary size is big, it has not been convenient to carry, and elongated keyhole is needed to match It closes, makes lock core structure size big.For another example application No. is 200820154900.1 utility model, propose " L " type section key, but As key straight with sheet and cross section key, pellet group exposes, and anti-theft is poor.

Utility model content

In order to overcome low and middle-end application field it is with high costs, anti-theft effect is poor the problems such as, the utility model provides a kind of Using structure of the section for the purely mechanic anti-theft lock of " L " type key, the key slot of lock core is hidden in inside keyhole, using rotation Key is sent into key slot by the mode for turning key, completes unlocking action.

The solution of the utility model is：Using " L " type section key, pellet groove depth is hidden in inside lock core, is prevented Traditional is unlocked using the non-key-shaped tool such as iron wire, knitting wool.Pellet position hole on the key is arranged in below " horizontal stroke " of " L ".Lock core Including several majors such as lock core shaft, locking stem, lower lock core column, lock core shell, lock core rear cover, resetting springs.

It is provided with key guide groove in lock core shaft to be oriented to for key, after key is allowed to rotate 180 degree, into bullet groove.Upper lock core Column and lower lock core column using being rigidly connected, be divided into two-part purpose be facilitate lock core shaft is packed into it is internal, lock core shaft with it is upper Lock core column is equally using rigid connection（The entirety that stem, lower lock core column and lock core shaft form of locking temporarily is known as lock core cylinder）.Lock Core rear cover is connect by screw thread with lock core shell（The whole of the two composition is temporarily known as lock core shell）, resetting spring is defined in lock core Between cylinder and lock core shell.

There is longitudinal slide-and-guide item on the outside of locking stem, matched with the slide-and-guide slot on the inside of lock core shell, limitation lock Stem body can only slide axially with lock core shell, realize unlocking action.After correct key is admitted to bullet groove, press downwards Lower lock core cylinder, that is, realize unlocking action, and upon its release, resetting spring realizes reset function.

The utility model has the advantage of：Pellet groove depth is hidden in inside lock core, anti-theft is good；With 200620029769.7 " L " type key lock compare, this Key structure is more compact, and the size of keyhole is relatively small；In low and middle-end application field into This is cheap.

Description of the drawings

Attached drawing 1- lock core structure sectional views（That is the A-A sectional views of attached drawing 2）.

Attached drawing 2- lock core vertical views.

Attached drawing 3- lock core structure diagrammatic perspective views.

Attached drawing 4- locking core column structures schematic diagram-front view；Attached drawing 5- locking core column structures schematic diagram-left view；On attached drawing 6- Lock core column's structure diagram-vertical view.

Attached drawing 7- lock core shafts structure diagram-right view；Attached drawing 8- lock core shafts structure diagram-front view.

Attached drawing 9- lock core shafts structural upright schematic diagram.

Attached drawing 10- Key structures schematic diagram-front view；Attached drawing 11- Key structures schematic diagram-left view；Attached drawing 12- Key structures Schematic diagram-cross-section diagram.

Attached drawing 13- key diagrammatic perspective views.

Attached drawing 14- unlocking process key position figures.

In figure：1- lock core shafts；2- marble holes；3- bullet grooves；4- lock core rear covers；Lock core column under 5-；6- resetting springs；7- locks Core shell；The upper lock barrels of 8-；9- keyholes；10- slide-and-guide items；11- locking stems and lower lock core column connecting pin bores；12- lock cores Axle bumper tongue；13- lock core shafts and locking stem connecting pin bores；14- key guide grooves；15- key pins position hole；16- keeps off glossal canal； 17- key connecting poles；18- key positions 1；19- key positions 2.

Specific embodiment

As shown in Figure 1, lock core mainly by lock core shaft 1, locking stem 8, lower lock core column 5, lock core shell 7, lock core rear cover 4, Resetting spring 6（Schematic diagram is illustrated with cylindrical drum）Etc. several majors composition.Attached drawing 1 is the sectional view of position shown in A-A in attached drawing 2, The three-dimensional schematic configuration diagram of lock core composition is as shown in Figure 3.

As shown in Figure 1, lock core shaft 1 is fixed on inside by locking stem 8 with lower lock core column 5（The entirety of three's composition is temporarily Referred to as lock core cylinder）.Attached drawing 4, attached drawing 5 and attached drawing 6 are the structure diagram of locking stem 8, and locking stem 8 is logical with lower lock core column 5 Connecting pin bores 11 is crossed to be rigidly connected.Attached drawing 7 and the structure diagram that attached drawing 8 is lock core shaft 1, stereochemical structure such as attached drawing 9, lock core shaft 1 is rigidly connected with locking stem 8 by connecting pin bores 13；Lock core shaft 1 is designed with lock core gear 12 structure of tongue, and the purpose of the design is The marble hole 2 of lock core and bullet groove 3 are hidden in inside lock core so that the non-key utensil such as iron wire can not be stretched by keyhole 9 Enter to unlock, strengthen the anti-theft of lock.Lock core shell 7 is connected through a screw thread with lock core rear cover 4 as entirety（Temporarily it is known as lock core shell）, will Lock core cylinder is wrapped in inside.There is slide-and-guide item 10 in 8 outside of locking stem, matches, makes with the guide groove of 7 inside of lock core shell The movement of longitudinal sliding motion can only be generated by obtaining between core cylinder and lock core shell.Resetting spring 6 is located at lock core cylinder and lock core shell Between body, it is therefore an objective to the reset of unlocking action.

It is the structure of the matched key of anti-theft lock core of the utility model as shown in attached drawing 10, attached drawing 11 and attached drawing 12 Schematic diagram, stereoscopic schematic diagram is as shown in Figure 13.The cross section of key is as shown in Figure 12 " L " type, marble hole on the key On " horizontal stroke " of " L "." perpendicular " of " L " is divided into gear glossal canal 16 and 17 two parts of key connecting pole, and the centre of " perpendicular " is by hollow out The purpose of gear glossal canal 16 is the lock core gear tongue 12 across lock core shaft 1.

Unlocking process is as shown in figure 14, and " L " type key is inserted into lock core from keyhole 9, reaches key position 1（18 in figure）； Then 180 degree is rotated clockwise, the gear glossal canal 16 of key passes through lock core to keep off tongue 12, reaches key position 2（19 in figure）, at this point, Key is located in bullet groove 3, if key is correct, can press key along central axis with lock core cylinder, under lower lock core column 5 Portion's extension stretches out, which is passed to lock body, completes unlocking action.Take out process and the above process of key on the contrary, The lock core cylinder pressed is unclamped, resetting spring 6 resets, and is then log out key.

It should be noted that present embodiment and attached drawing only illustrate the lock core of the utility model and the principle of key, tool The cooperation fixed form of body lock core and lock body does not describe.

Claims (4)

1. a kind of anti-theft lock using " L " type key, it is characterised in that including lock core shaft, locking stem, lower lock core column, lock core Shell, lock core rear cover, resetting spring six are most of；It is provided with key guide groove in lock core shaft to be oriented to for key, key is allowed to rotate 180 degree Afterwards, into bullet groove；Stem, lower lock core column and lock core shaft three lock using rigid connection, composition is collectively referred to as lock core Cylinder；Lock core rear cover is connect by screw thread with lock core shell, and composition is collectively referred to as lock core shell, and resetting spring is defined in lock core Between cylinder and lock core shell；There is longitudinal slide-and-guide item on the outside of locking stem, with the slide-and-guide slot phase on the inside of lock core shell Cooperation, limitation core cylinder can only slide axially with lock core shell.

2. anti-theft lock according to claim 1, it is characterised in that lock core shaft is designed with lock core axle bumper tongue, and bullet groove is hidden It ensconces inside lock core, makes non-key utensil that can not stretch into unlocking by keyhole.

A kind of 3. matched key of anti-theft lock with described in claim 1 or claim 2, it is characterised in that the horizontal stroke of key Section is " L " type, and marble hole is below " horizontal stroke ".

4. key according to claim 3, it is characterised in that have matched with the lock core axle bumper tongue described in claim 2 Keep off glossal canal.