GB2411430A - A lock device with replacable cylinder pin - Google Patents
A lock device with replacable cylinder pin Download PDFInfo
- Publication number
- GB2411430A GB2411430A GB0404286A GB0404286A GB2411430A GB 2411430 A GB2411430 A GB 2411430A GB 0404286 A GB0404286 A GB 0404286A GB 0404286 A GB0404286 A GB 0404286A GB 2411430 A GB2411430 A GB 2411430A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cylinder
- plug
- lock device
- cylinder plug
- cylinder housing
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
- E05B9/04—Casings of cylinder locks
- E05B9/041—Double cylinder locks
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
- E05B27/0003—Details
- E05B27/0014—Stators
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
- E05B27/005—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in with changeable combinations
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B9/00—Lock casings or latch-mechanism casings ; Fastening locks or fasteners or parts thereof to the wing
- E05B9/10—Coupling devices for the two halves of double cylinder locks, e.g. devices for coupling the rotor with the locking cam
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lock And Its Accessories (AREA)
Abstract
A lock device with a replaceable cylinder pin, so that users can change pin ciphers. The device comprises a cylinder housing; a cylinder plug located in the cylinder housing; pins and springs located in the cylinder housing and cylinder plug; a pull axle and a cylinder annulus that connects the cylinder housing and cylinder plug; wherein a detachable spring cover for sealing pin holes is located at the outlet of pin holes on the cylinder housing. The lock device in the present invention is simple in structure in that pins can be detached, assembled or replaced conveniently and rapidly, making it more convenient for specialists to detach and rearrange pins. To change ciphers, what one has to do is nothing but remove the detachable spring covers, replace or rearrange pins and seal the pin holes with the spring covers.
Description
241 1 430 A lock device with replaceable cylinder pin
FIELD OF THE INVENTION
This invention is directed to a door lock device, more particularly, the present invention is directed to a lock device with replaceable cylinder pin, so that users can change pin ciphers.
BACKGROUND OF THE INVENTION
Traditional door lock mainly comprises a cylinder housing, cylinder plug, pull axle, cylinder annulus, multiple groups of cylinder pins and springs, wherein the cylinder plug, pull axle, cylinder annulus, pins and springs are installed in the cylinder housing and coordinate with each other. When the key is inserted in, the cipher slots on the key couple with pins and springs to lock or unlock as appropriate. The pins and springs are installed in the pin holes in the cylinder housing, and the pins are tightly sealed with cylindrical lead column to fix them within the cylinder housing. The problem is that this traditional fix method is very inconvenient to change arrange of pin which different arrange form different ciphers. Only after lead columns are drilled off by a drilling machine, it is possible to replace cipher pins and change ciphers. To sum up, it is extremely difficult and inconvenient to replace.
SUMMARY OF THE INVENTION
A main object of the present invention is to solve the above problem by providing a lock device with replaceable cylinder pin which is simple in structure, easy to detach and operate and safe for use, and whose pins can be detached and replaced and ciphers can be changed.
These objectives are achieved in the present invention by provides a lock device of which the pins in the cylinder plug can be replaced. The device comprises a cylinder housing; cylinder plug located in cylinder housing; pins and springs located in cylinder housing and cylinder plug; pull axle and cylinder annulus that connect cylinder housing and cylinder plug; wherein a detachable spring cover for sealing pin holes are located at the outlet of pin holes on the cylinder housing.
The spring cover is long enough to seal all pin holes.
A positioning slot is located at the outlet of pin holes on top of cylinder housing; the spring cover is in lath shape and installed in the said positioning slot.
The spring cover is located in the positioning slot via a positioning member, or directly connected with cylinder housing washer or fastener.
Positioning member is located on the top of one pin hole and has a protruding portion thereon; the spring cover has a corresponding positioning hole; the spring cover is fixed in positioning slot via said protruding portion inserted into the positioning hole.
A lock device with replaceable cylinder pin, comprising a cylinder housing; inner cylinder plug and outer cylinder plug located in cylinder housing; pins and springs located in cylinder housing and cylinder plug; pull axle and cylinder annulus that connect inner cylinder plug and outer cylinder plug; wherein a detachable spring cover for sealing pin holes are located at each outlet of two rows of pin holes in the cylinder housing.
The spring cover is long enough to seal all pin holes.
Positioning slot is located at the outlet of pin holes on top of cylinder housing; spring cover is in lath shape and installed in the positioning slot.
The spring cover is located in positioning slot via positioning member; positioning member is located on the top of a pin hole and its top has a protruding portion; the spring cover has corresponding positioning hole; spring cover is fixed in positioning slot via said protruding portion inserted into the positioning hole; The spring cover is directly connected with cylinder housing washer or fastener.
The inner cylinder plug and outer cylinder plug are connected with cylinder housing by two washer, wherein the portion close to inside diameter is embedded in the washer slot on the cylinder plug and the portion close to outside diameter is pressed against the edge of the cylinder plug hole on the cylinder housing.
Inner cylinder plug and outer cylinder plug are connected with cylinder annulus via lock axle; a lug is located on pull axle; a slot is located in cylinder annulus for embedding the lug; a gap is located on the ends of inner cylinder plug and outer cylinder plug; said lug is clutched with slot and gap such that inner cylinder plug, outer cylinder plug and cylinder annulus are rotationally connected on cylinder housing.
Compared with the fixed sealing mechanism for cylinder pins of lock in prior art, the lock device of the present invention comprises replaceable pins wherein detachable spring covers simultaneously seal multiple groups of pins and pin springs in the cylinder housing and cylinder plug. Unlike traditional lock device that uses cylindrical lead column to seal each pin holes, the lock device in the present invention is simple in structure where pins can be detached, assembled or replaced conveniently and rapidly, making it more convenient for specialists to detach and rearrange pins. To change ciphers, what one has to do is nothing but remove the detachable spring covers, replace or rearrange pins and seal the pin holes with spring covers. Therefore, it is easier for users to change ciphers.
DESCRIPTION OF THE DRAWINGS
Fig. 1 shows a breakdown view of the parts for the lock device of the present invention.
Fig. 2 shows a assembly view for the lock device of the present invention.
Fig. 3 shows a cutaway view for the lock device of the present invention.
DESCRIPTION OF PREFERRED EMBODIMENT
As shown in Fig. 1, this embodiment takes the structure of a dualcylinder plug lock as an example to illustrate the present invention, a lock device of the present invention comprises a cylinder housing 10, cylinder plug 20, pins 30, springs 40, a pair of spring covers 50, positioning member 60, cylinder annulus 70, pull axle 80 and a pair of washers 90. The device is installed in cylinder housing 10 and thus forming cylinder plug for door lock (See Fig. 2).
Also refer to Fig. 3, cylinder housing 10 is hollow and comprises two cylinder plug mounting parts 11; pin mounting chamber 13, and cylinder annulus mounting portion 12 which is located between the two cylinder plug mounting parts 11.
Said Cylinder plug mounting parts 11 are hollow cylinders in which are horizontal cylinder plug holes 110, it correspond to cylinder plugs 20 in dimension and are used to contain cylinder plugs 20.
Pin mounting chamber 13 is vertical located on the outer side of cylinder plug mounting parts 11 and on its outside surface are two symmetrical positioning slots 132 and inward along positioning slots 132 are a row of through pin holes 130. Pin holes 130 are interconnected with cylinder plug holes 110.
Cylinder annulus mounting portion 12 defines a space used to contain cylinder annulus and washer 90.
Cylinder plug 20 comprises inner cylinder plug 21 and outer cylinder plug 22. Inner cylinder plug 21 and outer cylinder plug 22 are cylinders, axially along the direction of whose center is a row of horizontal through key holes 23, which correspond to the key in shape (not shown). Axially along the top of cylinder plug 20 is rows of vertical through pin holes 26 which correspond to pin holes 130 in cylinder housing 10. A passageway 220 (as show in Fig. 3) is located on the rear end of inner cylinder plug 21 and on the front end of outer cylinder plug 22. There is a pair of symmetrical gaps 25 On the said two ends and a pair of ring-shaped slot 24 on the outer surface closed to the said two ends. With different arrangements and different combinations in different pin holes, pins 30 constitute different ciphers.
The pins 30 and springs 40 can be comprised Multiple groups depending the needs of cipher setup. The present embodiment takes six groups as an example. In this embodiment, each group of pins 30 comprises I-shaped top pins 31, middle pins 32 and bottom pins 33. The bottom pins 33 have conic shape at their lower part. These pins are installed in pin holes 130 from top to bottom. Based on the needs of cipher setup, pins of different size may have different arrangements and different combinations in different pin holes. Each group of pins has a spring 40 corresponding to it.
The spring cover 50 is a long lath sheet, on which is a positioning hole 51 and one end of which bends upward to form a hook 52. Positioning member 60 is in cylindrical shape, and on its end there is a small- diameter protruding portion 61 that protrudes upward from cylinder body. The Positioning member is smaller than pin holes 130 in outside diameter but larger than positioning hole 51 in aperture diameter. Protruding portion 61 corresponds to positioning hole 51 in dimension and size. Positioning member 60 may be screws, pins or washers.
Cylinder annulus 70 is removable, it comprises ringed sleeve 73 and bulge 72 formed by the casing of sleeve 73 extending outward. Axially along the inner wall of sleeve 73 is slot 74 which corresponds to lug 84 on pull axle 80 in width and depth. The bottom (not shown) wall of slot 74 is located on the same plane as the inner wall of ringed sleeve 73. Cylinder annulus corresponds to cylinder annulus mounting portion 12 on cylinder housing 10 in shape.
Pull axle 80 comprises two symmetrical rear and front portions which are respectively coupled with inner cylinder plug 21 and outer cylinder plug 22. The front and rear portions are in cylindrical shape whose outside diameter is smaller than the height of passageway 220 on the ends of inner cylinder plug 21 and outer cylinder plug 22, and the symmetrical lug 84 is formed on outer surface of them.
Washer 90 are resilient open rings whose outside diameter is larger than the inside diameter of cylinder plug holes 110 on cylinder plug mounting portion 11 but smaller than the outside diameter of inner cylinder plug 21 and outer cylinder plug 22. Its width is slightly smaller than that of slot 24 and its height is larger than the depth of slot 24.
In assembly, insert pull axle 80 into inner cylinder plug 21 from rear until lug 84 on the front portion of pull axle 80 is embedded into gap 25; and insert the cylindrical portion of pull axle 80 into passageway 220 on the rear section of inner cylinder plug 21. Meanwhile, place cylinder annulus 70 in the cylinder annulus mounting portion 12 on cylinder housing 10 such that ringed sleeve 73 is aligned with cylinder plug mounting portion 11. Then, insert inner cylinder plug 21 into cylinder plug mounting portion 11 from the front end of cylinder housing 10 such that inner cylinder plug 21 is in cylinder plug hole 110 on cylinder plug mounting portion 11, the rear end of inner cylinder plug 21 is inserted into ringed sleeve 73 and located at the front wall of slot 74 in ringed sleeve 73, pull axle 80 is located in ringed sleeve 73 and its lug 84 is embedded in slot 74. Now, insert outer cylinder plug 22 from the rear end of the mounting portion 11 of the other cylinder plug such that outer cylinder plug 22 is placed in cylinder plug mounting hole 110 on cylinder plug mounting portion 11, the front end of outer cylinder plug 22 is inserted into ringed sleeve 73 and sleeved around the rear section of pull axle 80, lugs 84 on the rear end of pull axle 80 are clutched in gap 25 on outer cylinder plug 22, and the front end of outer cylinder plug 22 is located at the rear wall of slot 74 in ringed sleeve 73. Now, inner cylinder plug 21 and outer cylinder plug 22 are interconnected via pull axle 80 and fixed on cylinder annulus 70. Then, clutch the inside diameter section of two washers 90 in slot 24 of inner cylinder plug 21 and outer cylinder plug 22 (as show in Fig. 3), its outside diameter section protrudes beyond slot 24, pressed against the outer edge of the outer wall of cylinder annulus 70 and cylinder plug hole 110 on cylinder housing. Thus keep cylinder plug from axially falling out. The gap of washers 90 are respectively supported at shoulders formed at the joint between the bulge 72 and the ringed sleeve73, thus connecting cylinder plugs 21 and 22, and pull axle 80 and cylinder annulus 70 in cylinder annulus mounting portion 12 on cylinder housing 10, such that inner cylinder plug 21 and outer cylinder plug 22 mounted in cylinder housing 10 may rotate with pull axle 80 and cylinder annulus 70 instead of gliding Axially. Pin holes in inner cylinder plug 21 and outer cylinder plug 22 are aligned with pin holes 130 in cylinder housing 10. Then, load pins 30, i.e., bottom pins 33, middle pins 32 and I-shaped top pins 31, into pin holes 130 and pin holes 22 in cylinder plug 20 from down to top in sequence; load springs 40 into pin holes 130 respectively and their lower free ends press against the external ends of I-shaped top pins.
Then, place positioning member 60 into one pin hole 130 close to the end such that their bottom sides press against the upper free ends of springs 40. Finally, place spring covers 50 into positioning slot 132 on cylinder housing 10 such that spring covers 50 press against the lower side of peripheral wall of positioning slot 132, and its hook 52 presses against the outlet of positioning slot 132 to keep spring covers 50 located in positioning slot 132. Now, by springs 40, the protruding portion 61 of positioning member 60 pass through positioning hole 51 on spring covers 50, the upper side of cylinder body on positioning member 60 presses against the lower surface of spring covers 50 and its lower side presses against the upper free ends of springs 40 (see Figure 3) such that spring covers 50 are further positioned in positioning slot 132. Therefore, spring covers 50 seal the outlet of all pin holes 130 such that pins 30 and springs 40 are sealed in cylinder housing 10 and in pin holes 130 and 26 of inner cylinder plug 21 and outer cylinder plug 22.
To change ciphers, press protruding portion 61 on positioning member 60 downward to detach it from positioning hole 51; hold hook 52 and pull spring covers 50 out of the outlet of positioning slot 132 to detach them from positioning slot 132 and expose the outlet of pin holes 130. After replacing corresponding cipher pins 30, seal the outlet of pin holes 130 as described above.
Positioning member 60 and spring covers 50 can also be connected via thread. It is possible to use more than one positioning member 60 for fixing purpose. In addition, positioning member 60 can also be mounted on other proper positions on cylinder housing 10 instead of in pin holes 130.
In another embodiment, spring covers 50 are designed as seal covers corresponding to cylinder housing 10, which are directly connected via thread, pins or fasteners and detachably fixed on top of cylinder housing 10 without forming positioning slot 132; and seal pins 30 and springs 40 in cylinder housing 10 and in pin holes 130 and 22 of inner cylinder plug 21 and outer cylinder plug 22.
It is understandable that the lock device with replaceable pins in the present invention may also be used in any lock device with single cylinder plug wherein only one corresponding unit as described above is used.
Claims (12)
- CLAIMS: 1. A lock device with a replaceable cylinder pin, the said lockcomprising: a cylinder housing; a cylinder plug located in the cylinder housing; pins and springs located in the cylinder housing and cylinder plug; and a pull axle and cylinder annulus that connect the cylinder housing and cylinder plug; wherein a detachable spring cover for sealing pin holes is located at the outlet of the pin holes on the cylinder housing.
- 2. A lock device according to claim 1, wherein the spring cover is long enough to seal all of the pin holes.
- 3. A lock device according to claim 1, wherein a positioning slot is located at the outlet of the pin holes on top of the cylinder housing, and spring cover is in lath shape and installed in the said positioning slot.
- 4. A lock device according to claim 3, wherein the spring cover is located in the positioning slot via a positioning member, or directly connected with cylinder housing via a washer or fastener.
- 5. A lock device according to claim 4, wherein the positioning member is located on the top of one pin hole and has a protruding portion thereon; the spring cover has a corresponding positioning hole; and the spring cover is fixed in the positioning slot via the said protruding portion inserted into the positioning hole.
- 6. A lock device with a replaceable cylinder pin, comprising: a cylinder housing; an inner cylinder plug and an outer cylinder plug located in the cylinder housing; pins and springs located in the cylinder housing and cylinder plug; and a pull axle and cylinder annulus that connect the inner cylinder plug and outer cylinder plug; wherein a detachable spring cover for sealing pin holes is located at each outlet of two rows of pin holes in the cylinder housing.
- 7. A lock device according to claim 6, wherein the spring cover is long enough to seal all of the pin holes.
- 8. A lock device according to claim 6, wherein a positioning slot is located at the outlet of the pin holes on top of cylinder housing; and the spring cover is in lath shape and installed in the positioning slot.
- 9. A lock device according to claim 8, wherein the spring cover is located in the positioning slot via a positioning member; the positioning member is located on the top of one pin hole and its top has a protruding portion; the spring cover has a corresponding positioning hole; and the spring cover is fixed in the positioning slot via the said protruding portion inserted into the positioning hole.
- 10. A lock device according to claim 6 or claim 8, wherein the spring cover is directly connected with a washer or fastener of the cylinder housing.
- 11. A lock device according to claim 6, wherein the inner cylinder plug and outer cylinder plug are connected with cylinder housing by two washers; such that a portion close to its inside diameter is embedded in the washer slot on the cylinder plug and a portion close to its outside diameter is pressed against the edge of the cylinder plug hole on the cylinder housing.
- 12. A lock device according to claim 6, wherein the inner cylinder plug and the outer cylinder plug are connected with the cylinder annulus via a lock axle; a lug is located on the pull axle; a slot is located in the cylinder annulus for embedding the lug; a gap is located on the ends of the inner cylinder plug and the outer cylinder plug; and the said lug is clutched with the slot and gap such that the inner cylinder plug, the outer cylinder plug and the cylinder annulus are rotationally connected on the cylinder housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0404286A GB2411430B (en) | 2004-02-26 | 2004-02-26 | A lock device with replaceable cylinder pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0404286A GB2411430B (en) | 2004-02-26 | 2004-02-26 | A lock device with replaceable cylinder pin |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB0404286D0 GB0404286D0 (en) | 2004-03-31 |
| GB2411430A true GB2411430A (en) | 2005-08-31 |
| GB2411430B GB2411430B (en) | 2007-04-04 |
Family
ID=32050922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0404286A Expired - Fee Related GB2411430B (en) | 2004-02-26 | 2004-02-26 | A lock device with replaceable cylinder pin |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2411430B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2053184A3 (en) * | 2007-10-25 | 2010-05-12 | DORMA GmbH + Co. KG | Cylinder lock with changeable key combination |
| CN102644414A (en) * | 2012-05-16 | 2012-08-22 | 张与均 | Tri-safety idle lock |
| CN102720398A (en) * | 2012-06-15 | 2012-10-10 | 中山市基信锁芯有限公司 | Burglary-prevention self-locking lock cylinder |
| ITPR20120059A1 (en) * | 2012-09-28 | 2014-03-29 | A C S S R L | METHOD OF CONSTRUCTION OF A LOCK CYLINDER |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971401B (en) * | 2016-07-04 | 2018-08-07 | 万佳安防科技有限公司 | Idle rotation on-off safety lock head |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB385635A (en) * | 1931-06-30 | 1932-12-30 | Charles Birch | Improvements relating to cylinder latches |
| US2007143A (en) * | 1934-06-13 | 1935-07-02 | Keil Francis & Son Inc | Lock construction |
| US2837908A (en) * | 1954-07-26 | 1958-06-10 | Segal Samuel | Cylinder lock |
| US4531389A (en) * | 1982-12-10 | 1985-07-30 | Best Lock Corporation | Cabinet lock |
| US5177466A (en) * | 1991-08-05 | 1993-01-05 | Lai Chung C | Lock structure with a warning device |
-
2004
- 2004-02-26 GB GB0404286A patent/GB2411430B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB385635A (en) * | 1931-06-30 | 1932-12-30 | Charles Birch | Improvements relating to cylinder latches |
| US2007143A (en) * | 1934-06-13 | 1935-07-02 | Keil Francis & Son Inc | Lock construction |
| US2837908A (en) * | 1954-07-26 | 1958-06-10 | Segal Samuel | Cylinder lock |
| US4531389A (en) * | 1982-12-10 | 1985-07-30 | Best Lock Corporation | Cabinet lock |
| US5177466A (en) * | 1991-08-05 | 1993-01-05 | Lai Chung C | Lock structure with a warning device |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2053184A3 (en) * | 2007-10-25 | 2010-05-12 | DORMA GmbH + Co. KG | Cylinder lock with changeable key combination |
| DE102007051427B4 (en) * | 2007-10-25 | 2014-11-06 | Dom Sicherheitstechnik Gmbh & Co. Kg | Cylinder lock with interchangeable specification of closure |
| CN102644414A (en) * | 2012-05-16 | 2012-08-22 | 张与均 | Tri-safety idle lock |
| CN102644414B (en) * | 2012-05-16 | 2015-01-14 | 张与均 | Tri-safety idle lock |
| CN102720398A (en) * | 2012-06-15 | 2012-10-10 | 中山市基信锁芯有限公司 | Burglary-prevention self-locking lock cylinder |
| CN102720398B (en) * | 2012-06-15 | 2014-12-10 | 中山市基信锁芯有限公司 | Burglary-prevention self-locking lock cylinder |
| ITPR20120059A1 (en) * | 2012-09-28 | 2014-03-29 | A C S S R L | METHOD OF CONSTRUCTION OF A LOCK CYLINDER |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2411430B (en) | 2007-04-04 |
| GB0404286D0 (en) | 2004-03-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20100226 |