CN2255476Y

CN2255476Y - Leaf lock

Info

Publication number: CN2255476Y
Application number: CN 95246103
Authority: CN
Inventors: 黄鲁生
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-10-11
Filing date: 1995-10-11
Publication date: 1997-06-04
Anticipated expiration: 2005-10-11

Abstract

The utility model relates to a leaf lock which is mainly composed of a lock core sleeve, a lock core, leaves, a key, etc., wherein a hollow shape in the lock core is matched with the shape of the cross section of the key; the central position of the cross section of the key is in a domed shape except both side edges, notches at both of the two sides of the key can push the leaf to move, and a notch at the top end of the key can push a bottom leaf to move. Because the lock hole is narrow, a universal key and other tools are difficult to enter the lock core, and even if enter the lock core, simultaneously stirring up a plurality of groups of the leaves in different directions is difficult. The front end of the lock core is also provided with a lock core cap for avoiding the lock from being drilled. The lock has the advantages of high safety performance, wide application and low cost, and can replace the existing leaf locks and spring ball locks.

Description

Reed lock

The utility model relates to a kind of mechanical type Reed lock.

Mechanical type Reed lock of the prior art, in its lock core cover with key insert to vertical direction be provided with the reed that several can relative lock core slip, reed is subjected to the effect of reed spring, and its end is slipped in the groove of lock core cover, and lock core and lock core cover can not be relatively rotated; Have only when the key insertion, pass each corresponding reed after each breach on the key puts in place, make each leaf end skid off the groove of lock core cover, lock core and lock core cover just can relatively rotate, and at this moment twist key, and the drive link ability rotating opening that is connected with the lock core rear end is locked.Key is mostly selected copper production for use, key thickness generally at 1.8 millimeters to 2.5 millimeter, and key piece is a tabular, bigger width is arranged, and the key shape of cross section is identical with the hollow shape at reed middle part in the lock core, therefore, have enough gaps to supply master key or other instruments to enter lock core from lockhole and instigate reed, safety is not high.

Task of the present utility model provides a kind of mechanical type Reed lock, makes master key and other instruments be difficult to enter lock core and instigates reed.

In order to solve above-mentioned task, the solution that the utility model adopts is: change the shape of cross section of key, also change the hollow shape at reed middle part simultaneously, the shape of key cross section is except that its dual-side, and central part is the arching shape; That is: key no longer is a tabular, but except that the position of the certain width of the dual-side that tooth is arranged, central part is the arching state.The key cross section adopts above shape, can strengthen the torsion strength of key, therefore might adopt thin material key piece, and lockhole can be done narrowlyer; Again because key has the side width of non-arching of tooth less, so master key and other instrument are difficult to enter lock core.

For further tightening security property, the key front end is opened a notch, the end reed vertical with key piece is housed at the lock core rear portion, when key inserts in the lock core, the hypotenuse of end reed partly injects in this notch, the hypotenuse of notch root and end reed interacts, and can make the end of end reed skid off or slip in the groove of lock core cover, can relatively rotate or not relatively turnable two kinds of situations thereby make to form respectively between lock core and the lock core cover.

In addition, at the front end of lock core the lock core cap of an anti-drilling usefulness is housed also, there is the lockhole that matches with key at its middle part, and key is passed through.

The beneficial effects of the utility model are: come reed is instigateeed because instruments such as existing master key and master key all can't enter the lock core of this lock, even there is new instrument can enter reluctantly, also be difficult to simultaneously many groups reed of two or more directions be instigateeed; The end of lock core is equipped with the lock core cap of anti-drilling usefulness in addition, and therefore the security performance of this lock greatly improves.

Be described in further detail below in conjunction with the most preferred embodiment shown in the accompanying drawing:

Fig. 1 is the axis profile figure of the utility model Reed lock.

Fig. 2 is along the sectional drawing of C-C direction among Fig. 1.

Fig. 3 is along the sectional drawing of A-A direction among Fig. 2.

Fig. 4 is along the sectional drawing of B-B direction among Fig. 1.

Reed lock of the present utility model such as Fig. 1, shown in Figure 3, comprise lock core cover 1, lock core 2, reed 3, reed spring 4 and key 6, reed 3 be subjected to reed spring 4 its end of effect can along key insert to vertical direction skid off lock core 2 and enter in the groove 5 of lock core cover 1, the hollow shape in the lock core 2 matches with the shape of cross section of key 6.State among Fig. 1 is, key 6 inserts in the lock cores 2 and puts in place, and the breach of key 6 both sides aligns with each reed 3 one.Show among Fig. 3 that the groove 5 of four 90 degree of being separated by is arranged on the lock core cover 1.About reed 3 can be divided into two groups, every group termination in the same way can be slipped in the same groove of lock core cover 1.Can see that in conjunction with Fig. 1, Fig. 3 under the state of this moment, because the key breach is done the passing of resisting reed spring 4 elastic force at reed 3 middle part hollow positions to reed 3, the end of each reed 3 has all skidded off the groove 5 of lock core cover 1; By Fig. 1 and Fig. 2 as can be known, key 6 front ends have notch, insert in the lock core 2 when it, the hypotenuse part that is arranged in the end reed 7 at lock core 2 rear portions can inject this notch, and the hypotenuse effect of notch root and end reed 7 can make the end of end reed 7 slip into or skid off in the groove 5 of lock core cover 1.The above notch of drawing injects the hypotenuse part of end reed 7 now, because the hypotenuse of notch root and end reed interacts, end reed 7 is promoted by notch, makes the translation of the elastic force of opposing end reed spring 9, and the end of end reed 7 also skids off the groove 5 of lock core cover 1 as a result; Because each reed 3 and end reed 7 have all skidded off the groove 5 of lock core cover 1, twist key 6 this moment, can drive lock core 2 and reach the rotation of the drive link 10 that is connected with lock core 2 rear ends, thereby open lock.

As the need locking, transfer to after then key 6 being turned back to the position of reed 3 end alignment grooves 5, then reed 3 its end under the effect of reed spring 4 is slipped in the groove 5, end reed 7 also under the elastic force effect of end reed spring 9 its end slip in the groove 5, so blocked and can not relatively rotate with upper reed plate between lock core 2 and the lock core cover 1, lock is closed.

Lock core cap 8 among Fig. 1, Fig. 2 adopts the potassium steel sheet to make, and is used for anti-drilling.

Fig. 1 to Fig. 3 shows, the shape of key 6 is except that the dual-side that tooth is arranged, central part is arching shape, and front end has notch, insert in the lock core 2 when it, the hypotenuse part that is arranged in the end reed 7 at lock core 2 rear portions can inject this notch, and the hypotenuse effect of notch root and end reed 7 can make the end of end reed 7 slip into or skid off in the groove 5 of lock core cover 1, can be " Ω " shape, also can be "

" shape.The dual-side width of the non-arching of described key 6 its cross sections is 0.5 to 5 millimeter, is preferably 2 millimeters, this be key 6 the tooth position arranged, the degree of depth of each between cog breach has four kinds of selections, it is differential to be 0.5 millimeter; Key 6 can adopt stalloy to make, and thickness is 0.1 to 1.0 millimeter, and preferred thickness is 0.4～0.7 millisecond, and its torsion strength can reach requirement.The volume and weight of this key has only about 1/4 of traditional copper key, is convenient to automated production, reduces production costs.Lock core 2 front ends are equipped with lock core cap 8, and its middle part has and the adaptive lockhole of key 6 shape of cross sections, and place, lockhole maximal clearance also has only 0.8 millimeter.

Reed 3 can adopt stainless steel substrates to make.Lock core 2 can be made with allumen die casting or plastics, and the copper lock core that cost uses than tradition reduces.Lock core 2 can overlap 1 with lock core and cooperate by retainer spring circle 11 and to form standarized component, also can directly cooperate with other lock body tool.

Claims

1. Reed lock, comprise lock core cover (1), lock core (2), reed (3), reed spring (4) and key (6), reed (3) be subjected to reed spring (4) its end of effect can along key insert to vertical direction skid off lock core (2) and enter in the groove (5) of lock core cover (1), hollow shape in the lock core (2) matches with the shape of cross section of key (6), it is characterized in that: the shape of key (6) is except that the dual-side that tooth is arranged, central part is arching shape, and front end has notch, when it inserts in the lock core (2), the hypotenuse that is arranged in the end reed (7) at lock core (2) rear portion can inject this notch, and the hypotenuse effect of notch root and end reed (7) can make the end of end reed (7) slip into or skid off in the groove (5) of lock core cover (1).

2. Reed lock according to claim 1 is characterized in that: the thickness of key (6) is 0.1 to 1.0 millimeter,

The dual-side width of the non-arching of its cross section is 0.5 to 5 millimeter.

3. Reed lock according to claim 2 is characterized in that: the thickness of key (6) is preferably 0.4 to 0.7 millimeter, and the dual-side width of the non-arching of its cross section is preferably 2 millimeters.

4. Reed lock according to claim 1 is characterized in that: lock core (2) front end is equipped with lock core cap (8), and its middle part has and the adaptive lockhole of key (6) shape of cross section.