CN207568341U

CN207568341U - Spiral antitheft lock core and its hollow key of internal and external screw

Info

Publication number: CN207568341U
Application number: CN201721658936.9U
Authority: CN
Inventors: 孙占全
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-12-04
Filing date: 2017-12-04
Publication date: 2018-07-03
Anticipated expiration: 2027-12-04

Abstract

A kind of spiral antitheft lock core and its hollow key of internal and external screw, lock core uses external core internal thread, inner core extracorporeal thread, and the external screw thread of inner core-body is deep into the lockhole that spiral-shaped gap is formed in the internal thread of external core, in this way from lockhole outer end towards lockhole in when filling in the article of technology unlocking, it cannot fill in, because the longitudinal cross-section of lockhole helically shaped form, the iron wire filled in can be blocked and take the tool and material of the technology unlockings such as paper, thus thoroughly solve the problems, such as antitheft.Only lock core could be opened using the hollow key of internal and external screw of this patent.

Description

Spiral antitheft lock core and its hollow key of internal and external screw

Technical field

The utility model is related to the technical field of lockset, more particularly to a kind of spiral antitheft lock core and its internal and external screw Hollow key.

Background technology

Lock is the utensil of common protection property in people's life, and with being constantly progressive for science and technology, the type of lock is not Disconnected to increase, the safety requirements of lock is also continuously improved in people.Traditional lock, lock core are typically the knot using linear insertion groove Structure, the lock of this structure are easily low using unlatchings, safety coefficients such as iron wire, tinfoil by illegal molecule.In recent years, occur various each The antitheft lock core of sample, but its root problem, as long as key can be inserted into, is just opened still there are the lockhole of perforation to technology The operation leeway left is locked, can not fundamentally solve the problems, such as antitheft.

Utility model content

To solve the above problems, the utility model proposes a kind of spiral antitheft lock core and its hollow keys of internal and external screw.

The technical solution of the utility model is：A kind of spiral antitheft lock core, the shell including lock core, mounted in lock core shell The mandrel of inside, the outer tube of the pellet component being interspersed between lock core shell and mandrel and suit on the shell, feature It is：The mandrel includes external cylindrical shape external core and internal screw shaped inner core-body, the lateral surface of external core be with it is outer The matched cylinder plane of rotation of shell, the medial surface of external core are equipped with internal thread, which is equal pitch thread；The inner core The lateral surface of body is external screw thread, and the external screw thread is waits the high equal pitch thread of teeth, the externally threaded screw pitch and the external core The screw pitch of internal thread is identical, and externally threaded crest extend into the inside of the internal thread of the external core, inner core-body on inner core-body Spiral helicine gap is formed between upper external screw thread and the internal thread of external core；The inner core-body inner end and the inner end of external core are consolidated Surely it links together.

Preferably, between the shell and external core be equipped with axially vertical and mutual corresponding marble hole, outside Marble hole is outer marble hole on shell, and the marble hole on external core is interior marble hole, and the pellet component is in above-mentioned two bullet In sub-aperture, pellet component includes spring, interspersed pellet, key trim pellet successively from outside to inside, and the spring is located at outer bullet In sub-aperture, the trim pellet is located in interior marble hole, and when lock core is in locking states, interspersed pellet both ends are located at respectively In outer marble hole and interior marble hole, run through at interior marble hole inner end and the crest of the internal thread of the external core, in interior pellet End is located at the crest；Outer spring end is contacted with the outer sleeve inner wall.

Preferably, the lateral surface of the inner end of external core is equipped with the sliding slot of annular, on the shell equipped with radially arranged positioning Pin, which is inserted into the sliding slot.

Preferably, the outer end face of the external core is equipped with uses jack with radial parallel locking.

It is a kind of that the hollow key of internal and external screw used is matched with foregoing lock core, it is characterized in that：The key includes The key body of key handle part and hollow tubular, the outer surface of the key body is key external screw thread, which is key tooth, The externally threaded tooth height is continually changing with the spiral of screw thread；The inner surface of key body is key internal thread, spiral shell in key The shape of line is matched with the external screw thread shape of the inner core-body of lock core.

Preferably, the key handle part is equipped with uses bolt with locking of being axially arranged in parallel.

The technique effect of the utility model

The spiral antitheft lock core and its hollow key of internal and external screw, lock core use external core internal thread, the outer spiral shell of inner core-body Line, and the external screw thread of inner core-body is deep into the lockhole that spiral-shaped gap is formed in the internal thread of external core, in this way from lock Outer end of hole towards fill in lockhole technology unlocking article and material, cannot fill in, because of the longitudinal cross-section of lockhole Helically shaped form can block the iron wire filled in and take the tool and material of the technology unlockings such as paper, thus thoroughly solve The problem of antitheft.Only lock core could be opened using the hollow key of internal and external screw of this patent.

Description of the drawings

Fig. 1 is the longitudinal profile structure schematic of spiral antitheft lock core；

Fig. 2 is the hollow key longitudinal profile structure schematic of internal and external screw；

Fig. 3 is that key is inserted into the longitudinal profile structure schematic that lock core is unlocked；

1. lock core shells, 2. external cores, 3. inner core-bodies, 4. outer tubes, 5. springs, 6. interspersed pellets, 7. in figure Key trim pellet, 8. positioning pins, 9. are locked with jack, the internal thread of 10. external cores, the external screw thread of 11. inner core-bodies, 12. Interior marble hole, 13. outer marble holes, 14. sliding slots, 15. external cores and inner core-body fixed pin,

21. key handle part, 22. key bodies, 23. key external screw threads, 24. key internal threads.

Specific embodiment

Embodiment one：Referring to Fig. 1, a kind of spiral antitheft lock core in figure, the shell including lock core, in lock core shell The mandrel in portion, the outer tube of the pellet component being interspersed between lock core shell and mandrel and suit on the shell, feature It is：The mandrel includes external cylindrical shape external core and internal screw shaped inner core-body, the lateral surface of external core be with it is outer The matched cylinder plane of rotation of shell, the medial surface of external core are equipped with internal thread, which is equal pitch thread, the inner core The lateral surface of body is external screw thread, and the external screw thread is waits the high equal pitch thread of teeth, the externally threaded screw pitch and the external core The screw pitch of internal thread is identical, and externally threaded crest extend into the inside of the internal thread of the external core, inner core-body on inner core-body Spiral helicine gap is formed between upper external screw thread and the internal thread of external core；In this way from lockhole outer end towards lockhole in fill in unlocking It during article, cannot fill in, because of the longitudinal cross-section of lockhole helically shaped form, the iron wire filled in can be blocked and take paper The tool and material of technology unlockings are waited, thus thoroughly solves the problems, such as antitheft.Only use the internal and external screw of this patent Hollow key could open lock core.The inner core-body inner end and the inner end of external core are fixed together.Ensure two together Step rotation.

It is equipped between the shell and external core and axially vertical and mutual corresponding marble hole, on the shell pellet Hole is outer marble hole, and the marble hole on external core is interior marble hole, and the pellet component is in above-mentioned two marble hole, bullet Sub-component includes spring, interspersed pellet, key trim pellet successively from outside to inside, and the spring is located in outer marble hole, institute The trim pellet stated is located in interior marble hole, when lock core is in locking states, interts pellet both ends and is located at outer marble hole respectively In interior marble hole, run through at interior marble hole inner end and the crest of the internal thread of the external core, interior pellet inner end is located at should At crest；Outer spring end is contacted with the outer sleeve inner wall.

The lateral surface of the inner end of external core is equipped with the sliding slot of annular, and on the shell equipped with radially arranged positioning pin, this is fixed Position pin inner end is inserted into the sliding slot.As the position limiting structure of radial direction and the guiding knot of circumferencial direction during central axis during unlocking Structure.

The outer end face of the external core is equipped with uses jack with radial parallel locking.The hole be used for and on the key insert The operation locked is realized in pin cooperation.

Embodiment two：Referring to Fig. 2, a kind of lock core with described in embodiment one matches the hollow key of internal and external screw used Spoon, it is characterized in that：The key includes the key body of key handle part and hollow tubular, and the outer surface of the key body is outside key Screw thread, the external screw thread are key tooth；The externally threaded tooth height is continually changing with the spiral of screw thread；The inner surface of key body For key internal thread, the shape of key internal thread is matched with the external screw thread shape of the inner core-body of lock core.

Referring to Fig. 3, the process which enters the keyhole of one lock core of embodiment rotates into, when the key is screwed into When in place, both key trim pellet jack-up can be carried out trim to the externally threaded crest of key by key tooth, so as to eject interspersed bullet In the lower half to outer marble hole of son, the contact surface of the pellet of key trim at this time and interspersed pellet just with lock core shell and outer core The cooperation cylindrical surface of body is concordant, and such mandrel can just rotate under the drive of key, so as to open lock.

The key handle part is equipped with uses bolt with locking of being axially arranged in parallel.This is locked is inserted into reality with bolt It applies locking in example one and locks operation with realization in jack.

Claims

1. a kind of spiral antitheft lock core, the shell including lock core, are interspersed in lock core shell at the mandrel inside lock core shell The outer tube of pellet component and suit on the shell between mandrel, it is characterized in that：The mandrel includes external circle Tubular external core and internal screw shaped inner core-body, the lateral surface of external core are and the matched cylinder plane of rotation of shell, external core Medial surface be equipped with internal thread, the internal thread be equal pitch thread；The lateral surface of the inner core-body be external screw thread, the outer spiral shell Line is to wait the high equal pitch thread of teeth, and the externally threaded screw pitch is identical with the screw pitch of the internal thread of the external core, on inner core-body Externally threaded crest extend into the inside of the internal thread of the external core, on inner core-body the internal thread of external screw thread and external core it Between form spiral helicine gap；The inner core-body inner end and the inner end of external core are fixed together.

2. a kind of spiral antitheft lock core according to claim 1, it is characterised in that：The shell and external core it Between be equipped with axially vertical and mutual corresponding marble hole, on the shell marble hole be outer marble hole, the bullet on external core Sub-aperture be interior marble hole, the pellet component in above-mentioned two marble hole, pellet component from outside to inside successively include spring, Interspersed pellet, key trim pellet, the spring are located in outer marble hole, and the trim pellet is located in interior marble hole, When lock core is in locking states, intert pellet both ends respectively be located at outer marble hole and interior marble hole in, interior marble hole inner end with Run through at the crest of the internal thread of the external core, interior pellet inner end is located at the crest；Outer spring end and the housing Inside pipe wall contacts.

3. a kind of spiral antitheft lock core according to claim 1, it is characterised in that：The lateral surface of the inner end of external core Sliding slot equipped with annular, on the shell equipped with radially arranged positioning pin, which is inserted into the sliding slot.

4. a kind of spiral antitheft lock core according to claim 1, it is characterised in that：The outer end face of the external core It is equipped with and uses jack with radial parallel locking.

5. a kind of match the hollow key of internal and external screw used with the lock core of claim 1, it is characterized in that：The key includes key The key body of shank and hollow tubular, the outer surface of the key body is key external screw thread, which is key tooth, this is outer The tooth height of screw thread is continually changing with the spiral of screw thread；The inner surface of key body is key internal thread, key internal thread Shape is matched with the external screw thread shape of the inner core-body of lock core.

6. the hollow key of internal and external screw according to claim 5, it is characterized in that：The key handle part is equipped with puts down with axial Bolt is used in locking for row arrangement.