CN212078976U - Novel double-key linked safe deposit box lock - Google Patents
Novel double-key linked safe deposit box lock Download PDFInfo
- Publication number
- CN212078976U CN212078976U CN202020438153.5U CN202020438153U CN212078976U CN 212078976 U CN212078976 U CN 212078976U CN 202020438153 U CN202020438153 U CN 202020438153U CN 212078976 U CN212078976 U CN 212078976U
- Authority
- CN
- China
- Prior art keywords
- lock
- key
- pulling sleeve
- linkage block
- lock cylinder
- 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.)
- Active
Links
Images
Landscapes
- Lock And Its Accessories (AREA)
Abstract
A novel double-key linkage safe deposit box lock comprises an upper lock shell, a lower lock shell, a first key and a second key, wherein a spring bolt and a linkage block are installed in the lower lock shell, the rear end of the spring bolt is positioned at the front end of the linkage block, the spring bolt retreats to unlock and is controlled by the linkage block, a first lock cylinder pulling sleeve and a second lock cylinder pulling sleeve are installed in the upper lock shell, the first lock cylinder pulling sleeve is positioned above the spring bolt, an eccentric cylindrical table at the bottom end of the first lock cylinder pulling sleeve is in linkage with the spring bolt in a matching way, the second lock cylinder pulling sleeve is positioned above the linkage block, and an eccentric cylindrical table at the bottom end of the second lock cylinder pulling sleeve is in; the lock core pulling sleeve I is internally provided with a top spring, a lock core piece small round pad and a plurality of lock core pieces I matched with the key I which are sequentially connected, and the lock core pulling sleeve II is internally provided with a top spring, a lock core piece small round pad and a plurality of lock core pieces II matched with the key II which are sequentially connected. The utility model discloses a pure mechanical structure of two key double lock cores and restriction linkage of each other through spring bolt and linkage piece, reliable performance is good, satisfies user's dual fail-safe needs, has further improved theftproof secret performance.
Description
The technical field is as follows:
the utility model relates to a tool to lock, concretely relates to safe deposit box lock of novel double key linkage.
Background art:
the lock core structure of the existing double-key linkage lock of the safe deposit box is complex, and iron lock chips with various structures need to be manufactured in the lock due to the complex structure of the lock core, so that the parts are large in size and poor in rigidity and strength, but the lock core of the lock is very complex in processing, assembling, debugging and using, so that the firmness, confidentiality and reliability of the existing double-key linkage lock of the bank safe deposit box are not ideal, and the existing lock is difficult to meet the use requirement of the high-quality bank safe deposit box.
The utility model has the following contents:
the utility model discloses the technical problem that will solve is: the novel double-key linkage safe box lock solves the problems in the prior art, adopts a pure mechanical structure, has good reliability, meets the requirement of double insurance of a user, and further improves the anti-theft security performance.
The utility model adopts the technical proposal that: a double-key linkage safe deposit box lock comprises an upper lock shell, a lower lock shell, a first key and a second key, wherein a spring bolt and a linkage block are installed in the lower lock shell, the rear end of the spring bolt is positioned at the front end of the linkage block, the spring bolt retreats to unlock and is controlled by the linkage block, a first lock cylinder pulling sleeve and a second lock cylinder pulling sleeve are installed in the upper lock shell, the first lock cylinder pulling sleeve is positioned above the spring bolt, an eccentric cylindrical table at the bottom end of the first lock cylinder pulling sleeve is matched and linked with the spring bolt, the second lock cylinder pulling sleeve is positioned above the linkage block, and an eccentric cylindrical table at the bottom end of the second lock cylinder pulling sleeve is matched and linked with; the lock core pulling sleeve I is internally provided with a top spring, a lock core piece small round pad and a plurality of lock core pieces I matched with the key I which are sequentially connected, and the lock core pulling sleeve II is internally provided with a top spring, a lock core piece small round pad and a plurality of lock core pieces II matched with the key II which are sequentially connected.
In the technical scheme, an eccentric cylindrical table is formed at the bottom end of the lock cylinder pulling sleeve, a waist-shaped hole is formed in the lock tongue correspondingly, and the eccentric cylindrical table at the bottom end of the lock cylinder pulling sleeve is sleeved in the waist-shaped hole of the lock tongue to be matched and linked.
In the technical scheme, one end of the linkage block is provided with a rotating hole, a shaft post is formed on the lower lock shell, the rotating hole of the linkage block is sleeved on the shaft post of the lower lock shell, a linkage block pressure spring is additionally arranged between one end of the linkage block and the shaft post of the lower lock shell, the linkage block pressure spring applies counterclockwise pressure to the linkage block, and a limiting block is formed on the lower lock shell close to the other end of the linkage block; and an eccentric cylindrical table is formed at the bottom end of the second lock cylinder pulling sleeve, and the eccentric cylindrical table at the bottom end of the second lock cylinder pulling sleeve is tightly close to the inner side of the linkage block, so that the linkage block is in linkage with the eccentric cylindrical table at the bottom end of the second lock cylinder pulling sleeve in a matching way.
In the technical scheme, the bottoms of the first lock cylinder pulling sleeve and the second lock cylinder pulling sleeve are disc-shaped bases, the upper parts of the first lock cylinder pulling sleeve and the second lock cylinder pulling sleeve are cylinders with notches formed in the left side and the right side, and the disc-shaped bases are assembled in the upper lock shell through large round pads and clamping rings.
In the technical scheme, a first lock cylinder hole sleeved with a first lock cylinder pulling sleeve and a second lock cylinder hole sleeved with a second lock cylinder pulling sleeve are respectively formed in the upper lock shell, a left groove and a right groove corresponding to the left gap and the right gap of the first lock cylinder pulling sleeve are formed in the inner wall of the first lock cylinder hole, and a left groove and a right groove corresponding to the left gap and the right gap of the second lock cylinder pulling sleeve are formed in the inner wall of the second lock cylinder hole.
In the technical scheme, the middle part of the first lock chip is provided with a special-shaped lock hole with a central symmetry point, two ends of the first lock chip are concentric circular arcs, and the diameter of the concentric circular arcs is equal to the outer diameter of the upper part of the first lock cylinder pulling sleeve; two ends of the lock core piece can move in the notches on the left side and the right side of the lock core pulling sleeve I and the left groove and the right groove of the inner wall of the lock core hole I; the middle part of the second lock chip is also provided with a special-shaped lock hole with a central symmetry point, two ends of the second lock chip are concentric circular arcs, and the diameter of the concentric circular arcs is equal to the outer diameter of the upper part of the second lock core pull sleeve; two ends of the lock core piece II can move in the notches on the left side and the right side of the lock core pulling sleeve II and the left groove and the right groove of the inner wall of the lock core hole II.
In the technical scheme, the front end of the lower lock shell is provided with a bolt outlet hole, the front end of the bolt extends out of or retracts back from the bolt outlet hole, the linkage block is of an arch structure, and the eccentric cylinder at the two bottom ends of the lock cylinder pulling sleeve is positioned and tightly leaned against the inner side of the arch structure of the linkage block.
In the technical scheme, the first lock chip or the second lock chip is designed into a special-shaped long strip, and the thickness of the middle part is smaller than that of the two end parts; the lock chip is provided with a special-shaped lock hole with a central symmetry point in the middle, the left side and the right side of the special-shaped lock hole are provided with a section of mutually parallel sides, an eccentric distance is reserved between the central symmetry point of the special-shaped lock hole and the circle center of the circular arcs at the two ends of the lock chip, and different eccentric values correspond to different lock chips.
In the technical scheme, the cross section of the key blank of the key I or the key II is a special-shaped strip section with two flat ends and a convex circular arc in the middle; the different depth positions of the key I or the key II correspond to different lock chips, two sides of the cross section of the key I or the key II at the different depth positions are processed into two parallel sides which are parallel to each other, an eccentric distance is arranged between the central line of the two parallel sides and the rotating central point of the key, and the eccentric distances at the different depth positions of the key are different.
The utility model discloses a theory of operation and advantage effect:
the upper lock shell is provided with two lock core holes, wherein a first lock core pulling sleeve is assembled in the first lock core hole, a second lock core pulling sleeve is assembled in the second lock core hole, a plurality of lock chips, small lock chip round pads and top springs which are sequentially connected from top to bottom are arranged in the first lock core pulling sleeve and the second lock core pulling sleeve, the lower part of the lock core pulling sleeve is assembled in the upper lock shell through a large round pad and a snap ring to prevent falling off, a lock tongue and a linkage block are arranged in the lower lock shell, the linkage block is positioned behind the lock tongue, an eccentric cylindrical table for pulling the lock tongue is integrally formed at the bottom end of the first lock core pulling sleeve, and the eccentric cylindrical table at the bottom end of the first lock core pulling sleeve is sleeved in a kidney-shaped hole; the bottom end of the second lock cylinder pulling sleeve is also integrally formed with an eccentric cylindrical table for pulling the linkage block, the eccentric cylindrical table of the second lock cylinder pulling sleeve abuts against the inner side of the linkage block, one end of the linkage block is provided with a rotating shaft hole, the rotating shaft hole of the linkage block is sleeved on a shaft post of the lower lock shell and is additionally provided with a linkage block pressure spring, and the linkage block rotates anticlockwise under the pressure of the linkage block pressure spring to abut against a limiting block. The plurality of lock chips in the first lock core pulling sleeve are pulled by the first key, and the plurality of lock chips in the second lock core pulling sleeve are pulled by the second key.
When the lock is unlocked, the second key is firstly inserted into the second lock chip, the second key rotates in the forward direction to drive the second lock cylinder pulling sleeve to rotate, the eccentric cylindrical table at the bottom end of the second lock cylinder pulling sleeve rotates to pull the linkage block clockwise, the front end of the linkage block leaves the position behind the lock tongue, and the lock tongue moves backwards without blocking. Then, a first key is inserted into a first lock chip, the first key rotates in the forward direction, the first lock core pulling sleeve is driven to rotate by the first lock chip, an eccentric cylindrical table at the bottom end of the first lock core pulling sleeve is sleeved into a kidney-shaped hole in the lock tongue, and the eccentric cylindrical table pulls the lock tongue to retreat so as to realize unlocking.
When the door is locked, a key I is used for reversely driving a lock chip I and a lock cylinder pulling sleeve I to reversely rotate, and an eccentric cylindrical table at the bottom end of the lock cylinder pulling sleeve I drives a lock tongue to move forward to lock the door; and then a second key is used for reversely rotating a second lock chip to drive a second lock cylinder pulling sleeve to rotate, an eccentric cylindrical table at the bottom end of the second lock cylinder pulling sleeve rotates anticlockwise and leaves a linkage block, the linkage block resets under the action of a pressure spring of the linkage block and is limited by a limiting block on a lower lock shell, at the moment, the front end of the linkage block reaches the position of the rear end of the lock tongue and props against the rear end of the lock tongue, so that the lock tongue cannot retreat to be unlocked, the complete locking of the door is realized, and then the first key and the second key are pulled out.
The transmission principle of the key and the lock chip is as follows:
because the lock core pulling sleeve I and the lock core pulling sleeve II are both provided with a plurality of lock core pieces, when the key is used for unlocking, in order to ensure that the key can smoothly enter the special-shaped lock holes of the lock core pieces, the special-shaped lock holes in the middle of the lock core pieces in the lock core pulling sleeve must be aligned with the lock holes of the upper lock shell, and the symmetrical center point of the special-shaped lock hole is coincided with the circle center of the lock cylinder pull sleeve, and an eccentric distance is reserved between the symmetrical center point of the special-shaped lock hole in the middle of the lock chip and the circle centers of the circular arcs at the two ends of the lock chip, so that the circle centers of the circular arcs at the two ends of each lock core piece and the circle center of the outer cylinder of the lock core pull sleeve are not concentric, although the diameter of the circular arcs at the two ends of each lock core piece is the same as that of the outer cylinder of the lock core pull sleeve, because of the non-concentricity, at the moment, one end of the lock core piece can extend out of the notch of the lock core pulling sleeve and enter the groove on the left side or the right side of the lock core hole of the upper lock shell, so that the lock core pulling sleeve cannot rotate in the upper lock shell. When the lock is unlocked, after the key is inserted and rotated by a certain angle, the cross sections of different depth positions of the key drive the lock chip to move different distances to the left or to the right by utilizing different eccentricities of the key, so that the circle centers of arcs at two ends of the lock chip at different depth positions are ensured to coincide with the center of a cylinder of the lock cylinder pulling sleeve, the lock chip can not extend out of a gap of the lock cylinder pulling sleeve at the moment, and the key can drive the lock cylinder pulling sleeve to rotate so as to realize unlocking.
To sum up, the utility model discloses a double key, two lock cores and through the spring bolt and the linkage block restrict mutually, link mutually, lack the not enough double insurance structure of one, greatly improved the theftproof performance and the secret performance of safe lock. Especially, the requirement that some users need two persons to be on the spot simultaneously to unlock, supervise and balance each other for important documents, precious articles and financial securities can be met. And the utility model discloses a pure mechanical structure, the good reliability, especially the lock core in the tool to lock is pulled out set one, the lock core is pulled out set two its structures equally, and lock core piece one all has ten with lock core piece two, but its structure only has a small number three, four kinds, and the size is little, simple structure, and the material is brass or bronze, and processing production is convenient, and the assembly is simple, but the permutation and combination of the difference of a few kinds of simple structure lock core pieces is very much, greatly improves the not heaviness of tool to lock, safe and reliable.
Description of the drawings:
FIG. 1 is a sectional view of the present invention;
FIG. 2 is a top view of the lock case and key shown in FIG. 1 with the lock case and key removed;
FIG. 3 is a schematic sectional view taken along line A-A of FIG. 1;
FIG. 4 is a top view of the device of FIG. 1, after being rekeyed;
FIG. 5 is a schematic plan view of an embodiment 1 of a locking chip;
FIG. 6 is a cross-sectional view taken along line B-B of FIG. 5;
FIG. 7 is a schematic plan view of an embodiment 2 of a chip lock;
FIG. 8 is a cross-sectional view C-C of FIG. 7;
FIG. 9 is a schematic plan view of an embodiment 3 of a locking chip;
FIG. 10 is a cross-sectional view D-D of FIG. 9;
FIG. 11 is a schematic cross-sectional view of the key blank of the key;
FIGS. 12-14 are schematic cross-sectional views of the key after machining at three different depth positions;
fig. 15 is a perspective view of the key.
Description of the reference numerals
1-a key I, 2-a key II, 3-a lower lock shell, 4-a upper lock shell, 5-a lock head cover, 6-a bolt, 7-a lock cylinder pull sleeve I, 8-a linkage block, 9-a lock chip I, 10-a lock chip small round pad, 11-a large round pad, 12-a snap ring, 13-a top spring, 14-a linkage block pressure spring, 15-a lock cylinder pull sleeve II, 16-a lock chip II, 17-a special-shaped lock hole, 18-an eccentric cylindrical table, 19-a limiting block, 20-a kidney-shaped hole, 21-a groove, 22-an upper and lower lock shell fastening screw, 23-a shaft column, 24-a lock core hole I, 25-a lock core hole II, 26-a central symmetry point of the special-shaped lock hole, 27-two end arcs of the lock chip, 28-centers of the arcs at the two ends of the lock chip, and 29-a key rotation.
The specific implementation mode is as follows:
referring to fig. 1 to 15, the utility model discloses a safe deposit box lock of two key linkages, including upper lock shell, lower lock shell, key one and key two, install spring bolt and linkage block in the lower lock shell, the spring bolt rear end is located linkage block front end, and the interval is coordinated, installs lock core in the upper lock shell and pulls out cover one and lock core and pulls out cover two, and lock core pulls out cover one and is located the spring bolt top and lock core pulls out cover one bottom and spring bolt cooperation linkage, and lock core pulls out cover two and is located linkage block top and lock core pulls out cover two bottoms and linkage block cooperation linkage; the lock core pulling sleeve I is internally provided with a top spring, a lock core piece small round pad and a plurality of lock core pieces I matched with the key I which are sequentially connected, and the lock core pulling sleeve II is internally provided with a top spring, a lock core piece small round pad and a plurality of lock core pieces II matched with the key II which are sequentially connected.
The bottom end of the lock cylinder pulling sleeve is provided with an eccentric cylindrical table, the eccentric cylindrical table corresponds to the lock cylinder pulling sleeve, the lock tongue is provided with a kidney-shaped hole, and the eccentric cylindrical table at the bottom end of the lock cylinder pulling sleeve is sleeved into the kidney-shaped hole of the lock tongue to be matched and linked.
One end of the linkage block is provided with a rotating hole, a shaft post is formed on the lower lock shell, the rotating hole of the linkage block is sleeved on the shaft post of the lower lock shell, a linkage block pressure spring is additionally arranged between one end of the linkage block and the shaft post of the lower lock shell, the linkage block pressure spring applies counterclockwise pressure to the linkage block, and a limiting block is formed on the lower lock shell close to the other end of the linkage block; and an eccentric cylindrical table is formed at the bottom end of the second lock cylinder pulling sleeve, and the eccentric cylindrical table at the bottom end of the second lock cylinder pulling sleeve is tightly close to the inner side of the linkage block, so that the linkage block is in linkage with the eccentric cylindrical table at the bottom end of the second lock cylinder pulling sleeve in a matching way.
The bottom of the first lock cylinder pulling sleeve and the bottom of the second lock cylinder pulling sleeve are both disc-shaped bases, the upper portions of the first lock cylinder pulling sleeve and the second lock cylinder pulling sleeve are cylinders with notches formed in the left side and the right side, and the disc-shaped bases are assembled in the upper lock shell through large round pads and clamping rings.
The upper lock shell is respectively provided with a first lock cylinder hole sleeved with a first lock cylinder pulling sleeve and a second lock cylinder hole sleeved with a second lock cylinder pulling sleeve, the inner wall of the first lock cylinder hole is provided with a left groove and a right groove corresponding to the left gap and the right gap of the first lock cylinder pulling sleeve, and the inner wall of the second lock cylinder hole is provided with a left groove and a right groove corresponding to the left gap and the right gap of the second lock cylinder pulling sleeve.
The middle part of the first lock chip is provided with a centrosymmetric special-shaped lock hole, two ends of the first lock chip are concentric circular arcs, and the diameter of the concentric circular arcs is equal to the outer diameter of the upper part of the first lock core pull sleeve; two ends of the lock core piece can move in the notches on the left side and the right side of the lock core pulling sleeve I and the left groove and the right groove of the inner wall of the lock core hole I; the middle part of the second lock chip is also provided with a centrosymmetric special-shaped lock hole, two ends of the second lock chip are concentric circular arcs, and the diameter of the concentric circular arcs is equal to the outer diameter of the upper part of the second lock core pull sleeve; two ends of the lock core piece II can move in the notches on the left side and the right side of the lock core pulling sleeve II and the left groove and the right groove of the inner wall of the lock core hole II.
The front end of the lower lock shell is provided with a spring bolt outlet, the front end of the spring bolt extends out of or retracts back from the spring bolt outlet, the linkage block is of an arch structure, and the eccentric cylinder at the bottom end of the two lock cylinder pulling sleeves is positioned at the inner side of the arch structure which is close to the linkage block.
The first lock chip or the second lock chip is designed into a special-shaped long strip, and the thickness of the middle part is smaller than that of the two end parts; the lock chip is provided with a special-shaped lock hole with a symmetrical center, the left side and the right side of the special-shaped lock hole are provided with a section of parallel sides, the distance between the sections of parallel sides is L, and an eccentric distance d is arranged between the central symmetry point of the special-shaped lock hole and the circle centers of arcs at the two ends of the lock chip.
The cross section of the first key or the second key is a special-shaped strip section with two flat ends and a convex circular arc in the middle; the different depth positions of the key I or the key II correspond to different lock chips, two sides of the cross section of the key I or the key II at the different depth positions are processed into two parallel sides which are parallel to each other, the distance between the two parallel sides is L, and a certain distance between the central line of the two parallel sides and the central point of the key is e.
The top of the lock cylinder hole I and the top of the lock cylinder hole II of the upper lock shell are also covered with a lock head cover, and the lock head cover is provided with a key hole.
Claims (9)
1. A double-key linkage safe deposit box lock is characterized in that: the lock comprises an upper lock shell, a lower lock shell, a first key and a second key, wherein a lock tongue and a linkage block are installed in the lower lock shell, the rear end of the lock tongue is positioned at the front end of the linkage block, the lock tongue retreats to unlock and is controlled by the linkage block, a first lock cylinder pulling sleeve and a second lock cylinder pulling sleeve are installed in the upper lock shell, the first lock cylinder pulling sleeve is positioned above the lock tongue, an eccentric cylindrical table at the bottom end of the first lock cylinder pulling sleeve is matched and linked with the lock tongue, the second lock cylinder pulling sleeve is positioned above the linkage block, and an eccentric cylindrical table at the bottom end of the second lock cylinder pulling sleeve is matched; the lock core pulling sleeve I is internally provided with a top spring, a lock core piece small round pad and a plurality of lock core pieces I matched with the key I which are sequentially connected, and the lock core pulling sleeve II is internally provided with a top spring, a lock core piece small round pad and a plurality of lock core pieces II matched with the key II which are sequentially connected.
2. The double-key linked safe deposit box lock according to claim 1, wherein: the bottom end of the lock cylinder pulling sleeve is provided with an eccentric cylindrical table, the eccentric cylindrical table corresponds to the lock cylinder pulling sleeve, the lock tongue is provided with a kidney-shaped hole, and the eccentric cylindrical table at the bottom end of the lock cylinder pulling sleeve is sleeved into the kidney-shaped hole of the lock tongue to be matched and linked.
3. The double-key linked safe deposit box lock according to claim 1, wherein: one end of the linkage block is provided with a rotating hole, a shaft post is formed on the lower lock shell, the rotating hole of the linkage block is sleeved on the shaft post of the lower lock shell, a linkage block pressure spring is additionally arranged between one end of the linkage block and the shaft post of the lower lock shell, the linkage block pressure spring applies counterclockwise pressure to the linkage block, and a limiting block is formed on the lower lock shell close to the other end of the linkage block; and an eccentric cylindrical table is formed at the bottom end of the second lock cylinder pulling sleeve, and the eccentric cylindrical table at the bottom end of the second lock cylinder pulling sleeve is tightly close to the inner side of the linkage block, so that the linkage block is in linkage with the eccentric cylindrical table at the bottom end of the second lock cylinder pulling sleeve in a matching way.
4. The double-key linked safe deposit box lock according to claim 1, wherein: the bottom of the first lock cylinder pulling sleeve and the bottom of the second lock cylinder pulling sleeve are both disc-shaped bases, the upper portions of the first lock cylinder pulling sleeve and the second lock cylinder pulling sleeve are cylinders with notches formed in the left side and the right side, and the disc-shaped bases are assembled in the upper lock shell through large round pads and clamping rings.
5. The double-key linked safe deposit box lock according to claim 1, wherein: the upper lock shell is respectively provided with a first lock cylinder hole sleeved with a first lock cylinder pulling sleeve and a second lock cylinder hole sleeved with a second lock cylinder pulling sleeve, the inner wall of the first lock cylinder hole is provided with a left groove and a right groove corresponding to the left gap and the right gap of the first lock cylinder pulling sleeve, and the inner wall of the second lock cylinder hole is provided with a left groove and a right groove corresponding to the left gap and the right gap of the second lock cylinder pulling sleeve.
6. The double-key linked safe deposit box lock according to claim 1, wherein: the middle part of the first lock chip is provided with a special-shaped lock hole with a central symmetry point, two ends of the first lock chip are concentric circular arcs, and the diameter of the concentric circular arcs is equal to the outer diameter of the upper part of the first lock cylinder pull sleeve; two ends of the lock core piece can move in the notches on the left side and the right side of the lock core pulling sleeve I and the left groove and the right groove of the inner wall of the lock core hole I; the middle part of the second lock chip is also provided with a special-shaped lock hole with a central symmetry point, two ends of the second lock chip are concentric circular arcs, and the diameter of the concentric circular arcs is equal to the outer diameter of the upper part of the second lock core pull sleeve; two ends of the lock core piece II can move in the notches on the left side and the right side of the lock core pulling sleeve II and the left groove and the right groove of the inner wall of the lock core hole II.
7. The double-key linked safe deposit box lock according to claim 1, wherein: the front end of the lower lock shell is provided with a bolt outlet hole, the front end of the bolt extends out of or retracts back from the bolt outlet hole, the linkage block is of an arch structure, and the eccentric cylinder at the bottom end of the lock cylinder pulling sleeve is positioned at and tightly leans against the inner side of the arch structure of the linkage block.
8. The double-key linked safe deposit box lock according to claim 1, wherein: the first lock chip or the second lock chip is designed into a special-shaped long strip, and the thickness of the middle part is smaller than that of the two end parts; the lock chip is provided with a special-shaped lock hole with a central symmetry point in the middle, the left side and the right side of the special-shaped lock hole are provided with a section of mutually parallel sides, an eccentric distance is reserved between the central symmetry point of the special-shaped lock hole and the circle center of the circular arcs at the two ends of the lock chip, and different eccentric values correspond to different lock chips.
9. The double-key linked safe deposit box lock according to claim 1, wherein: the cross section of the key blank of the key I or the key II is a special-shaped strip section with two flat ends and a convex circular arc in the middle; the different depth positions of the key I or the key II correspond to different lock chips, two sides of the cross section of the key I or the key II at the different depth positions are processed into two parallel sides which are parallel to each other, an eccentric distance is arranged between the central line of the two parallel sides and the rotation central point of the key, and the eccentric distances of the key at the different depth positions are different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020438153.5U CN212078976U (en) | 2020-03-31 | 2020-03-31 | Novel double-key linked safe deposit box lock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020438153.5U CN212078976U (en) | 2020-03-31 | 2020-03-31 | Novel double-key linked safe deposit box lock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212078976U true CN212078976U (en) | 2020-12-04 |
Family
ID=73563209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020438153.5U Active CN212078976U (en) | 2020-03-31 | 2020-03-31 | Novel double-key linked safe deposit box lock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212078976U (en) |
-
2020
- 2020-03-31 CN CN202020438153.5U patent/CN212078976U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FI108308B (en) | A cylinder lock-key-combination | |
| US20180171662A1 (en) | Disc tumbler lock assembly | |
| CN203559648U (en) | Multidimensional anti-burglary lock cylinder and dedicated key | |
| CN104912393A (en) | Lock with two-way secret key fully conforming to structure and key | |
| CN212078976U (en) | Novel double-key linked safe deposit box lock | |
| CN201843398U (en) | Lock cylinder and key thereof | |
| CN104912386B (en) | Disengaging type tapered end and key | |
| CN111287584A (en) | Novel double-key linkage safe deposit box lock and lock chip design method | |
| CN102787752B (en) | Integral turning angle pin tumbler lock | |
| CN207406140U (en) | Blade lockset | |
| CN202850642U (en) | Upper and lower flat tumbler two-sided lock cylinder and dedicated key thereof | |
| US1998900A (en) | Lock | |
| CN103233617A (en) | Anti-theft rotary spring lock body and key | |
| CN201891300U (en) | Linked double-insurance lock core | |
| US20130319057A1 (en) | Novel anti-theft lockset | |
| CN203201279U (en) | Blade curved groove lockset | |
| CN202990598U (en) | High security anti-theft lock cylinder with sealing function | |
| CN206971959U (en) | A kind of theftproof lock | |
| CN205422199U (en) | Plum blossom lock | |
| CN206158366U (en) | Safety key and lock core subassembly with curve spoon groove | |
| CN202937069U (en) | Drilling-resistant idle blade lock cylinder | |
| CN108331455A (en) | Bilayer is locked without spring blade angle | |
| CN210798527U (en) | Multi-rail blade lock cylinder | |
| CN102704753B (en) | Technical unlocking resisting lockset | |
| TWI579450B (en) | Replace the lock of the lock |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |