CN106854952B - Composite blade lock core - Google Patents

Abstract

The invention discloses a composite blade lock core, which comprises: a lock liner; the key cylinder is provided with a through key cavity for the key to enter or take out and a plurality of blade caulking grooves arranged at intervals; a key blade; the blade comprises an inner tooth blade and an outer tooth blade which are arranged in a laminated manner; the key is provided with an inner milling groove matching corresponding to the inner tooth blade and an outer milling groove matching corresponding to the outer tooth blade, the inner tooth blade is clamped into the inner milling groove and the outer tooth blade is clamped into the outer milling groove by inserting a correct key, so that the lock cylinder lock pin acts to drive the dial to rotate, and unlocking is realized; the inner milling groove is formed in the middle of the key and comprises a first inner key rail and a second inner key rail which are arranged oppositely; the outer milling grooves are formed on two sides of the key and comprise a first outer key track and a second outer key track. The novel lock has the advantages of simple and compact structure, easiness in manufacturing, high yield, low process cost, safety and reliability, and can be suitable for occasions such as household security door locks, safe box locks and the like, so that the safety level of the lock is greatly improved.

Description

Composite blade lock core

[ technical field ] A

The invention relates to a composite blade lock cylinder.

[ technical background ] A method for producing a semiconductor device

Most of the existing lock cylinders are a row of balls with strong directional arrangement and are arranged in a solid lock liner, the lock cylinders can be unlocked by corresponding different lengths of the balls with the missing positions of keys, various lock cylinders used in the existing market are various, but the lock cylinders are basically the same as the ball lock cylinders, the shape of the key is arranged on one side or single side, the single lock has low safety level, potential safety hazards are brought to users, and the unlocking difficulty is low, in order to solve the problems, a plurality of rows of ball locks also appear, for example, chinese patent application (with the publication number of CN 104746942A) discloses a multi-position lock cylinder which mainly comprises a lock cylinder, a lock body, keys, balls, springs and ball holes, and is characterized in that: the same pin holes or card slots are formed at the positions needing to be positioned on the circumference of the lock body. The marble holes are also internally provided with marbles and springs. The working principle is as follows, the structure of the invention is additionally provided with a marble hole at the position of 90 degrees or 180 degrees, and is also provided with a marble and a spring in the marble hole, when the lock core rotates 90 degrees, the marble on the lock core is just corresponding to the marble hole at the other position on the lock body, and the marble in the lock core can freely stretch out and draw back in the process of pulling out the key, so that the key can be pulled out, and the lock core rotates to the other position. However, the principle and the structure of the spring are the same as those of a single-row spring, only the number of the spring is increased, and meanwhile, the spring has the defects of high processing difficulty, complex structure, high manufacturing cost and poor safety level;

therefore, a composite blade lock core is developed.

[ summary of the invention ]

The invention aims to provide a composite blade lock cylinder which has the characteristics of simple and compact structure, easiness in manufacturing, high yield, low process cost, safety and reliability, is suitable for occasions such as household security door locks, safe box locks and the like, and greatly improves the safety level of locks.

In order to achieve the purpose, the invention adopts the technical scheme that: a composite blade lock cylinder comprising:

a lock cylinder; the key cylinder is provided with a through key cavity for the key to enter or take out and a plurality of blade caulking grooves arranged at intervals;

a key blade group; the key comprises an inner tooth blade and an outer tooth blade, wherein the key is provided with an inner milling groove corresponding to the inner tooth blade for matching, and is provided with an outer milling groove corresponding to the outer tooth blade for matching;

a first lock shell part which is provided with an inner cavity for placing the lock cylinder;

the second lock shell part is provided with an inner cavity for placing the lock cylinder;

the pulling mop is movably arranged between the first lock shell part and the second lock shell part and is provided with an inner cavity for placing the lock cylinder and a strip-shaped groove for movably placing a pulling mop lock pin; the bottom of the pull-drag lock pin is provided with a pull-drag spring;

the connection strip is connected with the first lock shell part and the second lock shell part through screws;

the key blade group is inserted with a correct key to enable the inner tooth blades to be clamped into the inner milling grooves and the outer tooth blades to be clamped into the outer milling grooves so that grooves on each key blade group are arranged to form linear grooves, and the corresponding pulling and pulling lock pins and the lock cylinder lock pins enter the grooves of the blades under the elastic action of the pulling and pulling springs to enable the pulling and pulling lock pins to partially enter the strip-shaped grooves; when the key rotates, the pulling and pulling device is driven to rotate, so that unlocking is realized.

Compared with the background technology, the invention has the following beneficial effects:

by adopting the technical scheme, the blade caulking grooves are formed in the key blade group at intervals, each key blade has different unlocking positions to correspondingly match the inner milling grooves formed in the key corresponding to the inner tooth blades, and the outer milling grooves formed in the key corresponding to the outer tooth blades are matched; each key blade is in a correct first inner key track and a correct second inner key track; the outer milling grooves are formed on two sides of the key and comprise corresponding specific actions or motion tracks of the first outer key track and the second outer key track, so that the grooves and the trapezoidal grooves can form a lock cylinder lock pin and a pull-drag lock pin which are matched to rotate to unlock, namely, the lock cannot be unlocked except for a correct key, and the safety level is greatly improved.

The safety and reliability performance is further improved, the blade caulking grooves on the lock cylinder are arranged in a multi-hole mode, four blades are arranged in each hole and are inserted in a left-right cross mode, a spring hole and a spring are arranged in the position corresponding to each blade, the first position and the fourth position are outer teeth, the second position and the third position are inner teeth, a key is inserted in place, the number of tooth patterns of the key corresponds to the same number of blade codes, grooves of all the blades are arranged to form a straight line groove, corresponding pulling and pulling lock pins and lock cylinder lock pins move downwards in the direction of the blades under the elastic force action of pulling and pulling springs to enter the grooves of the blades, and part of the pulling and pulling lock pins fall into the lock cylinder lock pin grooves of the lock cylinder, and the pulling and pulling are driven to rotate to unlock the lock when the key is rotated correctly; furthermore, the inner milling groove and the outer milling groove are formed on the two sides of the key, and the security level is higher.

According to the invention, one side edge of the internal tooth blade is provided with the groove which is in a right trapezoid shape, so that the key can not block the lock plunger and can be smoothly pulled out.

[ description of the drawings ]

FIG. 1 is a schematic structural diagram of a composite blade lock cylinder according to an embodiment of the present invention;

FIG. 2 is a schematic view of an expanded structure of a composite blade lock cylinder according to an embodiment of the present invention;

FIG. 3 is an enlarged view taken at A in FIG. 2;

fig. 4 is a schematic view of another perspective unfolded structure of the composite blade lock cylinder according to an embodiment of the present invention.

[ detailed description ] embodiments

The technical scheme and the beneficial effects of the invention are clearer and clearer by further describing the specific embodiment of the invention with the accompanying drawings of the specification. The embodiments described below are exemplary and are intended to be illustrative of the invention, but are not to be construed as limiting the invention.

Referring to fig. 1-4, a composite blade lock core is provided in the preferred embodiment of the present invention, which includes a lock cylinder 1, a key 2, a key blade 3, a lock cylinder lock pin 4, and a pulling piece 5; the lock core 1 is provided with a through key cavity 11 for the key 2 to enter or take out and a plurality of blade embedding grooves 12 arranged at intervals; the key blade 3 comprises an inner tooth blade 31 and an outer tooth blade 32, wherein the inner tooth blade 31 and the outer tooth blade 32 are arranged in a laminated manner; the key 2 is provided with an inner milling groove 21 corresponding to the inner tooth blade 31 for matching, an outer milling groove 22 corresponding to the outer tooth blade 32 for matching, the inner tooth blade 31 is clamped into the inner milling groove 21 and the outer tooth blade 32 is clamped into the outer milling groove 22 by inserting the correct key 2, so that the lock cylinder lock pin 4 acts to drive the puller 5 to rotate, and unlocking is realized; the inner milling groove 21 is formed in the middle of the key 2, and the inner milling groove 21 comprises a first inner key track and a second inner key track which are oppositely arranged; the outer milling grooves 22 are formed on both sides of the key 2 and include a first outer key track and a second outer key track.

The inner milling groove 21 and the outer milling groove 22 are formed on both sides of the key 2.

The inner tooth blade 31 is provided with a key hole 311, the key hole 311 is provided with a protruding part 312 which is used for entering the inner milling groove 21 so as to elastically abut against the first inner key track or the second inner key track; a groove 313 is arranged on one side edge of the internal tooth blade 31, and the groove 313 is in a right trapezoid shape; the other side is provided with a spring support boss 314. The outer blade 32 and the inner blade are both thin frame-shaped, but have a rectangular groove 321 on one side.

The blade caulking grooves 12 are arranged in a straight line; four blades (an inner tooth blade 31 and an outer tooth blade 32 which are inserted into the blade caulking groove 12 in a crossed manner are arranged in each blade caulking groove 12, each blade is correspondingly provided with a spring 33 for providing elastic force in a transverse direction, an accommodating cavity 13 for placing the spring 33 is correspondingly arranged on the lock cylinder 1, and the blade caulking grooves 12 are communicated with the accommodating cavities 13.

Four key blades 3 are arranged in each blade caulking groove 12 and are arranged in a staggered and laminated mode, wherein the first layer and the fourth layer are outer tooth blades 32, and the second layer and the third layer are inner tooth blades 31. The external part matched with the lock cylinder can comprise a first lock shell part 6, a second lock shell part 7, a connecting strip 10 and a screw 101, wherein the first lock shell part 6 is provided with an inner cavity for placing the lock cylinder; the second lock shell part 7 is provided with an inner cavity for placing the lock cylinder; the pulling and pulling device 5 is movably arranged between the first lock shell part 6 and the second lock shell part 7, and the pulling and pulling device 5 is provided with an inner cavity for placing the lock cylinder and a strip-shaped groove 51 for movably placing a pulling and pulling lock pin 8; the bottom of the pulling and pulling lock pin 8 is provided with a pulling and pulling spring 9. The connection strip 10 connects the first lock housing part 6 and the second lock housing part 7 by a screw 101.

The key blade 3 group is inserted with a correct key to enable the inner tooth blade to be clamped into the inner milling groove and the outer tooth blade to be clamped into the outer milling groove so that grooves on each key blade 3 group are arranged to form a linear groove, and the corresponding pulling lock pin and the lock cylinder lock pin enter the grooves under the elastic force action of the pulling spring so that the pulling lock pin partially enters the strip-shaped groove 51; when the key 2 rotates, the pulling block 5 is driven to rotate, so that unlocking is realized.

The working principle of the invention is further explained by combining the above contents and all the drawings;

when the key is started, the key 2 is composed of an inner milling groove 21 and an outer milling groove 22, and the inner milling groove 21 is arranged bilaterally; the groove 313 of the female blade 31 has a right angle on one side and a hypotenuse on the other side to form a right trapezoid. The outer milling grooves 22 are arranged on both sides, and are correspondingly matched with two right angles on two sides of the groove 321 on the outer tooth blade 32 to form a rectangle, and the lock cylinder lock pins 4 are arranged at right angles with the direction of the key blade 3. The width of the inner tooth milling groove fluted disc can be the same as that of the blades, the width of the outer tooth milling groove fluted disc can be 3 times or more than that of the inner tooth fluted disc, the lock liner 1 is provided with a plurality of holes, each hole is provided with 4 key blades 3 which are crossly inserted from left to right, the corresponding position of each blade is provided with a spring hole 12 and a spring 314, the first position and the fourth position are outer tooth blades 32, the second position and the third position are inner tooth blades 31, a correct key 2 is inserted in place, the tooth code number of the key 2 corresponds to the same blade code number, then the grooves of all the blades are arranged into a straight line groove, the corresponding pull and drag lock pins 8 and lock liner lock pins 4 move downwards to the blade direction under the elastic force of the pull and drag springs 9 to enter the grooves of the blades, wherein dial and drag lockpin 8 and have half lock courage to fall into in lock courage lock cotter groove 14, drive when key 2 is rotatory to dial and drag 5 to rotate and just can unblank, when interior tooth dish width is the same with interior tooth blade thickness, when dialling out key 1, interior tooth blade 31 recess hypotenuse direction is drawn close to towards the centre removal, powerful lock courage lockpin 4 up holds up, dial and drag lockpin 8 ejecting lock courage lock cotter groove 14 outside, even the key drives the lock courage rotation, dial and drag the lockpin of interior to have been broken away from lock courage lock cotter groove and not follow the rotation and can not unblank, the idle running state of lock core has been formed, can prevent violently prying the lock, thereby reach four two and dial very heavy effects. The outer teeth blade 32 can be set to be wider than a fluted disc, when the inner teeth blade 31 lifts the lock cylinder lock pin 4 out of 313 stroke distances of the trapezoidal groove, the width of the outer teeth blade is just smaller than that of the fluted disc, and the blades on the outer teeth do not move left and right due to corresponding stroke distances when the key 2 is pulled out. The right angles at the two sides of the groove of the outer teeth can not clamp the lock plunger, and the key 2 is smoothly pulled out to solve the problem of high mutual opening rate of the blade lock cylinders. The lock core 1 can be unlocked by inserting a key at two ends, if the lock core is not inserted with an original key or a non-key, the lock core can rotate, under the condition, the lock core only idles, but the pulling rod does not rotate, and the lock core can not be unlocked, so that the safety level of the lock is greatly improved, and the lock core has the characteristics of simple and compact structure, easiness in manufacturing, high yield, low process cost, safety and reliability, and is suitable for occasions such as household security door locks, safe box locks and the like.

With the above structure and principle in mind, those skilled in the art should understand that the present invention is not limited to the above embodiments, and modifications and substitutions based on the known technology in the field are within the scope of the present invention, which should be limited by the claims.

Claims (1)

1. A composite blade lock cylinder, comprising:

a lock cylinder; the key is provided with a through key cavity for the key to enter or take out and a plurality of blade caulking grooves arranged at intervals;

a key blade group; the key comprises an inner tooth blade and an outer tooth blade, wherein the key is matched with an inner milling groove arranged corresponding to the inner tooth blade, and matched with an outer milling groove arranged corresponding to the outer tooth blade;

a first lock shell part which is provided with an inner cavity for placing the lock cylinder;

a second lock shell part which is provided with an inner cavity for placing the lock cylinder;

the pulling mop is movably arranged between the first lock shell part and the second lock shell part and is provided with an inner cavity for placing the lock cylinder and a strip-shaped groove for movably placing a pulling mop lock pin; the bottom of the pulling lock pin is provided with a pulling spring;

the connecting strip is connected with the first lock shell part and the second lock shell part through screws;

the key blade group is inserted with a correct key to enable the inner tooth blades to be clamped into the inner milling grooves and the outer tooth blades to be clamped into the outer milling grooves so that grooves on each key blade group are arranged to form linear grooves, and the corresponding pulling and pulling lock pins and the lock cylinder lock pins enter the grooves of the blades under the elastic action of the pulling and pulling springs to enable the pulling and pulling lock pins to partially enter the strip-shaped grooves; when the key rotates, the pulling and pulling device is driven to rotate, so that unlocking is realized.

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