CN202970151U - Forced opening prevention vane lock cylinder - Google Patents

Abstract

The utility model discloses a forced opening prevention vane lock cylinder which mainly comprises a lock casing, a middle sleeve, a flat key, a horizontal pin, a lock liner, a dust-proof vane, a vane, a key and other parts. A square groove is arranged in the inner wall of the lock casing along the axial direction. A key groove is arranged in the middle sleeve along the axial direction and a clutch hole is arranged at the rear end of the middle sleeve. The lock liner is provided at least two vane cavities. A horizontal pin groove is axially arranged in the lock liner. A dust-proof vane hole is arranged in an entrance of the lock liner. A key hole is arranged in the middle of the vane. A triangular groove is arranged in one side of each vane and at least three positions of the triangular grooves are arranged and different positions represent different grade differences. Key differs are arranged at the front and the back of the front end of a key. The grade differences of the vanes are matched with the key differs. The forced opening prevention vane lock cylinder has the advantages that when foreign matter or unmatched keys are inserted into the cylinder, the lock liner rotates in an idle mode, the cylinder can not be opened so that the aim of preventing a lock from being opened by force is achieved.

Description

Anti-violence is opened blade lock core

Technical field

The utility model relates to a kind of lock core, and a kind of anti-violence is opened blade lock core specifically.

Background technology

Existing lock, Household door lock particularly, more and more has safety, because the improvement of locking equipment, the raising of lockmaking technique, its mutual opening rate, size of key and anti-technical opening have reached higher level, but see on the structure with regard to lock core at present, be difficult to still prevent that violence from unblanking, the foreign matters such as rainwater, sand dust easily enter lock core inside, can affect the application life of lock core.

The utility model content

The utility model improves for existing deficiency, provide a kind of anti-violence to open blade lock core, the technical scheme that realizes above-mentioned purpose is as follows: anti-violence is opened blade lock core, its structure comprises lock housing, middle cover, lock gall, key, offer the key insert port on lock gall one end end face, it is characterized in that: middle cover is placed in lock housing, and lock housing internal diameter and middle cover external diameter adapt; Lock gall is placed in middle cover, and middle cover internal diameter and lock gall external diameter adapt, and the lock housing bore axes is to offering square groove,

Middle cover axially offers keyway, places flat key in keyway, and shape, the size of flat key and keyway adapt, and can be up and down, and middle cover rear end is provided with the clutch hole, and clutch is positioned in the clutch hole,

Lock gall offers at least two blade cavities and leaf spring hole, the position next-door neighbour in blade cavity and leaf spring hole, put into respectively two blades in each blade cavity, place a back-moving spring in each leaf spring hole, also offer transverse pin slot on the axial excircle of lock gall, lateral pin is positioned in this transverse pin slot, lock gall key insert port end offers dustproof film perforation, place dustproof sheet back-moving spring and dustproof sheet in dustproof film perforation, described dustproof sheet is two, and symmetrical placement the, dustproof sheet can be radially movable in dustproof film perforation.

During the lock core lock-out state, some flat key is placed in this square groove, under unlocking condition, flat key some in the lock gall transverse pin slot.

Further, described lateral pin is roughly a rectangle, and the radial section of lateral pin axial direction and the external diameter of lock gall adapt, and corresponding to one side with cotter axle is the triangle muscle, and the radial section of triangle muscle is a triangle.

Further, offer the keyhole that inserts key in the middle of blade, be provided with a triangular groove with a side end face of keyhole axially parallel, the triangle muscle shape of described triangular groove and lateral pin, size adapt,

Described key front end tow sides offer tartar, and when inserting key, tartar is corresponding with keyhole.

When differential on blade with tartar when being complementary, the triangular groove on blade in line, the triangle muscle of lateral pin is placed in the blade triangular groove fully, flat key release lock shell side groove, a flat key part is positioned at transverse pin slot simultaneously.

When key is being extracted under state, under the effect of dustproof sheet back-moving spring, two dustproof sheets are and close up state.

When foreign matter or unmatched key insert lock core, can only make lock gall idle running, can not opening lock master, thus reaching the purpose that prevents that violence from unblanking, anti-violence is opened effective.And protection lock core inner structure, the application life of increase lock core.

Description of drawings

Fig. 1 is the utility model broken away view

Fig. 2 is the accessory of the utility model: middle cover

Fig. 3 is the accessory of the utility model: lock gall, and wherein f is the lock gall schematic perspective view, h is the lock gall front view

Fig. 4 is the accessory of the utility model: blade, and wherein a is the blade stereogram, b is the blade front view

Fig. 5 is the accessory of the utility model: key

Fig. 6 is the schematic diagram of the utility model dustproof sheet in lock gall

Fig. 7 is the utility model opening schematic diagram

Fig. 8 is the utility model blocking schematic diagram

Fig. 9 is the lateral pin schematic diagram

Figure 10 is the cross-sectional schematic of radial direction lock housing

Figure 11 is the lock housing front view

Figure 12 is the schematic diagram of three kinds of diverse locations of blade triangle muscle, and wherein c is the schematic diagram that triangular groove takes over, and d is the schematic diagram in the middle of triangular groove is positioned at, and e is the schematic diagram that triangular groove is taken back

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is described in detail

In figure, anti-violence is opened blade lock core, mainly comprises lock housing 1, middle cover 2, flat key 13, lateral pin 12, lock gall 3, dustproof sheet 6, vane group 4, key 5 parts such as grade.

Lock-shell lining axially offers square groove 14, and middle cover axially offers keyway 21, and flat key 13 is positioned in middle cover keyway 21, and flat key can be up and down in keyway.Under blocking, flat key 13 some in lock housing square groove 14, under unlocking condition, flat key 13 some in lock gall transverse pin slot 33, middle cover rear end is provided with clutch hole 22, offers at least two blade cavities 31 on lock gall, has a leaf spring hole 32 below each blade cavity 31, in each leaf spring hole, 32 place a back-moving spring, are placed with two blades 4 in each blade cavity 31.Lock gall axially offers transverse pin slot 33, the interior placement lateral pin 12 of transverse pin slot 33, lateral pin 12 transverse pin slot 33 is interior can be up and down.Blade cavity 31 communicates with transverse pin slot 33, lateral pin top axial cross section is arc, adapt with the cylindrical of lock gall 3, the bottom of lateral pin is triangle muscle 121, triangle muscle 121 axial cross sections are triangle, adapt with shape, the size of triangular groove 42 on blade 4, under unlocking condition, lateral pin triangle muscle 121 is fallen in blade triangular groove 42 fully; Under blocking, lateral pin triangle muscle end face is on blade side.Lock gall key insert port end offers dustproof film perforation 34, the dustproof interior placement dustproof sheet of film perforation 34 back-moving spring 61 and dustproof sheet 6, and described dustproof sheet 6 is two, and symmetrical the placement, dustproof sheet is in the interior radially activity of dustproof film perforation 34.

Offer the keyhole 41 that inserts key in the middle of blade 4, be provided with triangular groove 42 with a side end face of keyhole 41 axially parallels, described triangular groove 42 is complementary with the triangle muscle of lateral pin, the position of triangular groove 42 has three kinds at least, different positions represents different differential, key front end tow sides offer tartar 51, and the differential tartar of following on blade is complementary.When inserting key, the keyhole 41 on blade is positioned at corresponding tartar position, and the combination of different tartars forms different keys.

In Fig. 7, when the key 5 of coupling inserts the lock gall of lock core, triangular groove 42 shapes of blade 4 one sides in line, the triangle muscle 121 of lateral pin 12 lower ends is fallen in blade triangular groove 42 fully, and lateral pin 12 and flat key 13 move down simultaneously, the complete release lock shell side groove 14 of flat key 13, some enters lock gall transverse pin slot 33 simultaneously, when rotating key 5, lock gall 3 rotates with flat key 13, and in the while, cover 2 also rotates under the drive of flat key 13.Clutch rotates under the drive of middle cover 2, reaches the purpose of unblanking.

Fig. 8, when extracting key 5 or unmatched key and insert lock core, the triangular groove 42 of blade 4 one sides is in the center, and the triangle muscle 121 of lateral pin 12 lower ends can not be fallen in blade triangular groove 42, and flat key 13 can not enter in lock gall transverse pin slot 33.Lock gall 3 can rotate under external force, flat key 13 some in lock housing square groove 14, can not rotate at the lower cover 2 of pining down of flat key 13, the lower cover 2 of this state does not have tie point with between lock gall 3, reach thus under external force, lock gall rotates arbitrarily and middle cover does not turn, and violence is opened can't be realized.

Fig. 6, when extracting under the key state, dustproof sheet 6 covers in the key insert port 35 on the lock gall end face under the effect of dustproof sheet back-moving spring 61, prevents that the foreign matters such as dust rainwater from entering, and effectively protects lock core, increases the service life.

The utility model main feature is, when foreign matter or unmatched key insert lock core, can only make lock gall idle running, can not opening lock master, thus reach the purpose that prevents that violence from unblanking.

The above embodiment is more preferably one of specific embodiment of the utility model, and the common variation that those skilled in the art carries out in the technical solutions of the utility model scope and replacement all should comprise in protection domain of the present utility model.

Claims (3)

1. anti-violence is opened blade lock core, and its structure comprises lock housing, middle cover, lock gall, key, offers the key insert port on lock gall one end end face, and it is characterized in that: middle cover is placed in lock housing, and lock housing internal diameter and middle cover external diameter adapt; Lock gall is placed in middle cover, and middle cover internal diameter and lock gall external diameter adapt, and the lock housing bore axes is to offering square groove,

Middle cover axially offers keyway, places flat key in keyway, and shape, the size of flat key and keyway adapt, and can be up and down, and middle cover rear end is provided with the clutch hole, and clutch is positioned in the clutch hole,

Lock gall offers at least two blade cavities and leaf spring hole, the position next-door neighbour in blade cavity and leaf spring hole, put into respectively two blades in each blade cavity, place a back-moving spring in each leaf spring hole, also offer transverse pin slot on the axial excircle of lock gall, lateral pin is positioned in this transverse pin slot, lock gall key insert port end offers dustproof film perforation, place dustproof sheet back-moving spring and dustproof sheet in dustproof film perforation, described dustproof sheet is two, and symmetrical placement the, dustproof sheet can be radially movable in dustproof film perforation.

2. anti-violence according to claim 1 is opened blade lock core, it is characterized in that: described lateral pin is roughly a rectangle, the radial section of lateral pin axial direction and the external diameter of lock gall adapt, and corresponding to one side with cotter axle is the triangle muscle, and the radial section of triangle muscle is a triangle.

3. anti-violence according to claim 1 is opened blade lock core, it is characterized in that: offer the keyhole that inserts key in the middle of blade, be provided with a triangular groove with a side end face of keyhole axially parallel, the triangle muscle shape of described triangular groove and lateral pin, size adapt

Described key front end tow sides offer tartar, and when inserting key, tartar is corresponding with keyhole.

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