CN2797552Y - Theft-proof lock core - Google Patents
Theft-proof lock core Download PDFInfo
- Publication number
- CN2797552Y CN2797552Y CN 200520060372 CN200520060372U CN2797552Y CN 2797552 Y CN2797552 Y CN 2797552Y CN 200520060372 CN200520060372 CN 200520060372 CN 200520060372 U CN200520060372 U CN 200520060372U CN 2797552 Y CN2797552 Y CN 2797552Y
- Authority
- CN
- China
- Prior art keywords
- lock core
- projection
- cutting ferrule
- theft
- radial groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a theft-proof lock core comprising a lock head outer shell connected with a lock body, a lock head inner shell which can axially slide in the outer shell, a lock core sleeve arranged in the inner shell, and a lock core, wherein one end of the lock core is extended with a convex column provided with a radial groove; the convex column is sheathed and connected with a theft-proof clamp sleeve fixed in the lock head outer shell; a reset spring is arranged between the clamp sleeve and the lock core sleeve, and the groove can be clamped into the clamp sleeve to position; the cross section of the convex column forms a semi-circular shape or a crescent shape; the center of the clamp sleeve is provided with a hole corresponding to the cross section of the convex column in order to make the convex column conveniently sheathed and slide. The radial groove is arranged in a position where the lock core and the convex column are combined, and the length of the radial groove is smaller than the arc length of the circumference corresponding to the convex column. The utility model has the advantages of simple and reasonable structure, low cost and simple unlocking and locking process; as the utility model is additionally provided with the theft-proof clamp sleeve and is provided with the radial groove for clamping the clamp sleeve, the complete mechanism is simple, and the theft-proof performance is effectively improved.
Description
Technical field
The utility model relates to a kind of lockset, particularly a kind of anti-theft lock.
Background technology
At present, existing theftproof lock great majority are these class mechanical locks of cylinder lock, promptly between lock core and lock core cover, be provided with pellet shot from a slingshot, in order to block lock core, thereby reach antitheft purpose, but because this billiards lock structure is simple, the robber uses simple tools just can stir pellet shot from a slingshot and opens lockset, and therefore this cylinder lock theftproof performance is relatively poor.
The utility model content
The purpose of this utility model is to provide a kind of simple and reasonable, low cost of manufacture, anti-theft lock that anti-theft feature is strong.
The technical scheme that its technical problem that solves the utility model adopts is, a kind of anti-theft lock, comprise the tapered end shell that links to each other with lock body, can be in the enclosure tapered end inner casing in axial sliding, be arranged on lock core cover and lock core in the inner casing, it is characterized in that lock core one end extends projection, projection is provided with radial groove; The antitheft cutting ferrule of socket on the projection, cutting ferrule is fixed in the tapered end shell, is provided with back-moving spring between cutting ferrule and the lock core cover, and groove can snap in the cutting ferrule location.
The cross section of described projection is semicircle or crescent, and cutting ferrule central authorities are provided with and the corresponding hole of projection cross section, so that projection is inserted in slip.Described radial groove is arranged on the junction of lock core and projection, and the length of radial groove is less than the pairing circumference arc length of projection.The cross section of described tapered end shell, inner casing and cutting ferrule is corresponding fillet quadrangle, polygon, ellipse or D font.Described cutting ferrule is fixed on the middle section position of tapered end shell endoporus.Described lock core cover is column, and both sides are provided with convex tendon, so that fixing in the lock core inner casing.
The another kind of structure of cutting ferrule is in the utility model, and the cross section of projection is semicircle or crescent, and cutting ferrule central authorities are provided with corresponding circular hole, and the circular hole surface is provided with U-shaped or C shape jump ring, locatees so that projection is inserted in to slide or snap in radial groove.Described cutting ferrule end face is provided with jump ring positioning seat and slippage slotted hole,
One end of jump ring is fixed on positioning seat, the other end can be in slotted hole elastic slip.
The utility model is simple and reasonable, low cost of manufacture, and the process of unblanking and lock is simple, owing to increased antitheft cutting ferrule, is provided with radial groove in order to block cutting ferrule.When use was provided with the cutting ferrule of jump ring, the user can just can lock without key, convenient and flexible operation, and the sleeve mechanism simple but efficient has improved theftproof performance.
Description of drawings
Fig. 1 is a sectional structure schematic diagram of the present utility model.
Fig. 2 is the perspective view of tapered end shell and inner casing.
Fig. 3 is the perspective view of lock core.
Fig. 4 is a theftproof lock master TV structure schematic diagram.
(a) is crescent hole cutting ferrule master TV structure schematic diagram among Fig. 5.
(b) is crescent hole cutting ferrule perspective view among Fig. 5.
(a) is semi-circular hole cutting ferrule master TV structure schematic diagram among Fig. 6.
(b) is semi-circular hole cutting ferrule perspective view among Fig. 6.
(a) is the cutting ferrule master TV structure schematic diagram of band jump ring among Fig. 7.
(b) is the cutting ferrule perspective view of band jump ring among Fig. 7.
The specific embodiment
Referring to Fig. 1-Fig. 4, a kind of anti-theft lock comprises the tapered end shell 1 that links to each other with lock body 13, can be in shell 1 tapered end inner casing 6 in axial sliding, be arranged on lock core cover 7 and lock core 8 in the inner casing 6, lock core 8 one ends extend projection 4, projection 4 is provided with radial groove 5; The antitheft cutting ferrule 2 of socket on the projection 4, cutting ferrule 2 is fixed in the tapered end shell 1, is provided with back-moving spring 3 between cutting ferrule 2 and the lock core cover 7, and radial groove 5 is arranged on the junction of lock core 8 and projection 4, and the length of radial groove 5 is less than projection 4 pairing circumference arc length, and groove 5 can snap in cutting ferrule 2 location.
Referring to Fig. 5, Fig. 6, the cross section of projection 4 is semicircle or crescent, and cutting ferrule 2 central authorities are provided with and the corresponding hole of projection 4 cross sections, so that projection 4 is inserted in slip; Cutting ferrule 2 is the little square table shape of fillet, and outer survey of desktop extended four arc-shaped feets, is fixed on the middle section position of tapered end shell 6 endoporus; The cross section of tapered end shell 1, inner casing 6 and cutting ferrule 2 is corresponding fillet quadrangle, polygon, ellipse or D font, adopts the fillet quadrangle in the present embodiment.Lock core cover 7 be a column, and both sides are provided with convex tendon 9, so that shoot son and fix in lock core inner casing 6.
During concrete the use, after inserting key, screw key drives lock core 8 rotations, after lock core 8 rotates to upper lock position, when promptly projection 4 just can pass through the hole of cutting ferrule 2 central authorities setting, be pressed into lock core 8, make projection 4 insert cutting ferrule 2, the radial groove 5 on the projection 4 produces dislocation with the hole that cutting ferrule 2 central authorities are provided with, and makes lock core 8 be stuck in the cutting ferrule, extract key, finish the action of locking.When unblanking, insert key after, to the side's of locking screw key in the opposite direction, drive lock core 8 rotations, when the radial groove on the projection 45 rotates to can break away from from the holes that cutting ferrule 2 central authorities are provided with the time, lock core 8 can rebound by the elastic force effect of back-moving spring 3, finishes unlocking action.
Referring to Fig. 7, in another embodiment, the cross section of projection 4 is semicircle or crescent, or other shapes functionally similar with it, cutting ferrule 2 end faces are provided with jump ring positioning seat 12 and slippage slotted hole 11, cutting ferrule 2 central authorities are provided with corresponding circular hole, the circular hole surface is provided with U-shaped or C shape jump ring 10, or other shapes corresponding to its spring function are arranged, one end of jump ring 10 is fixed on positioning seat 12, the other end is elastic slip in slotted hole 11, and projection 4 can be inserted in to slide or snap in radial groove 5 locatees.
In this embodiment, because jump ring 10 is flexible, after finishing unlock operation with key, key can drive lock core 8 and be turned back to the position of inserting key, jump ring 10 is pressed on the orientation of radial groove 5, distance between this moment jump ring 10 and the radial groove 5 is the length that moves axially that is pressed into lock core 8 when locking, and extracts key then.When locking once more, lock core 8 is pressed in the lock housing 6, jump ring 10 overlaps once more with radial groove 5, and jump ring 10 bullets are stuck in the radial groove 5, finish and lock.
Claims (8)
1. anti-theft lock, comprise the tapered end shell (1) that links to each other with lock body (13), can be in the enclosure tapered end inner casing (6) in axial sliding, be arranged on lock core cover (7) and lock core (8) in the inner casing, it is characterized in that lock core one end extends projection (4), projection is provided with radial groove (5); The antitheft cutting ferrule of socket (2) on the projection, cutting ferrule is fixed in the tapered end shell, is provided with back-moving spring (3) between cutting ferrule and the lock core cover, and groove can snap in the cutting ferrule location.
2. anti-theft lock according to claim 1, the cross section that it is characterized in that described projection is semicircle or crescent, cutting ferrule central authorities are provided with and the corresponding hole of projection cross section, so that projection is inserted in slip.
3. anti-theft lock according to claim 1 and 2 is characterized in that described radial groove is arranged on the junction of lock core and projection, and the length of radial groove is less than the pairing circumference arc length of projection.
4. anti-theft lock according to claim 1, the cross section that it is characterized in that described tapered end shell, inner casing and cutting ferrule are corresponding fillet quadrangle, polygon, ellipse or D font.
5. anti-theft lock according to claim 4 is characterized in that described cutting ferrule is fixed on the middle section position of tapered end shell endoporus.
6. anti-theft lock according to claim 1 is characterized in that described lock core cover is column, and both sides are provided with convex tendon (9), so that fixing in the lock core inner casing.
7. anti-theft lock according to claim 1, the cross section that it is characterized in that described projection is semicircle or crescent, cutting ferrule central authorities are provided with corresponding circular hole, and the circular hole surface is provided with U-shaped or C shape jump ring (10), locate so that projection is inserted in to slide or snap in radial groove.
8. anti-theft lock according to claim 7 is characterized in that described cutting ferrule end face is provided with jump ring positioning seat (12) and slippage slotted hole (11), and an end of jump ring is fixed on positioning seat, the other end can be in slotted hole elastic slip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520060372 CN2797552Y (en) | 2005-06-20 | 2005-06-20 | Theft-proof lock core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520060372 CN2797552Y (en) | 2005-06-20 | 2005-06-20 | Theft-proof lock core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2797552Y true CN2797552Y (en) | 2006-07-19 |
Family
ID=36868792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520060372 Expired - Fee Related CN2797552Y (en) | 2005-06-20 | 2005-06-20 | Theft-proof lock core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2797552Y (en) |
-
2005
- 2005-06-20 CN CN 200520060372 patent/CN2797552Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |