Lock mounting structure with high safety
By introducing structures such as connecting pins, locking gears, and synchronization grooves into the lock, the problem of existing locks requiring two people to hold the key has been solved, achieving a high-security lock design that cannot be opened by a single person.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-01
- Publication Date
- 2026-04-03
AI Technical Summary
Existing high-security locks require two people to hold the key to open, posing a security risk of single-person unlocking.
A lock installation structure was designed, including components such as connecting pins, locking gears, fixed teeth, and synchronizing grooves, to ensure that the lock can only be unlocked when three keys are inserted simultaneously, and to prevent single-person opening through the engagement and disengagement mechanism of the locking gears.
It effectively eliminates the possibility of a single person unlocking the lock, improves the security of the lock, and ensures that it can only be unlocked when all three keys are present.
Smart Images
Figure CN224078876U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lock technology, specifically to a high-security lock installation structure. Background Technology
[0002] Locks are devices used to lock doors, boxes, and other items. In modern life, locks are important security devices, and the security of their installation structure is crucial. They can effectively resist various illegal opening and vandalism, providing users with reliable security protection.
[0003] However, some existing high-security locks, in order to prevent them from being opened, usually have two keyholes and two keys. This means that the lock can only be unlocked when both keys are inserted and turned simultaneously. Although this method improves security to some extent, it cannot completely eliminate the problem of one person unlocking the lock if they have both keys. When two people need to share two keys or a combination for a door, there are security risks, and the security is relatively low. In view of this, we propose a high-security lock installation structure to solve the above problems. Utility Model Content
[0004] In view of the shortcomings of the prior art, this utility model provides a lock installation structure with high security to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-security lock installation structure, including an installation box, the installation box having an internal cavity, three connecting posts movably fitted inside the installation box, each of the three connecting posts having a lock hole on its surface, three unlocking rods rotatably connected inside the cavity, the rear ends of the three unlocking rods rotatably extending through the interior of the installation box, each of the three connecting posts having a sliding chamber inside, the three unlocking rods respectively slidingly extending into the interior of the sliding chamber, the sliding chamber being connected to the lock hole, locking gears fixedly fitted outside each of the three connecting posts, the three locking gears meshing with each other, fixed teeth fixedly connected to the top wall of the cavity, the fixed teeth meshing with the locking gears, a support shaft rotatably connected between two adjacent locking gears, transmission gear sleeves fixedly fitted outside each of the two support shafts, the transmission gear sleeves meshing with the locking gears on both sides.
[0006] Preferably, each of the three unlocking rods has a synchronization groove on its surface, and each of the three sliding chambers has a synchronization block fixedly connected to its inner wall. The three synchronization blocks are slidably connected inside the three synchronization grooves.
[0007] Preferably, three fixing rings are fixedly connected to the rear inner wall of the cavity, and the three fixing rings are respectively wrapped around the outside of the three unlocking rods.
[0008] Preferably, each of the three fixing rings is fixedly connected to a first spring, and the three first springs are in contact with the rear end faces of the three connecting posts respectively.
[0009] Preferably, a spring is fixedly connected inside each of the three fixing rings, and the end of the spring away from the fixing ring is fixedly connected to the unlocking rod.
[0010] Preferably, a fixed rod is fixedly connected to the top wall of the cavity, and a telescopic groove is provided inside the fixed rod. A telescopic rod is slidably connected inside the telescopic groove, and a second spring is fixedly connected between the telescopic rod and the inner wall of the telescopic groove.
[0011] Preferably, the surface of the connecting column is provided with a locking groove, the locking groove is adapted to the telescopic rod, and the locking groove is connected to the sliding chamber.
[0012] Preferably, the width of the locking gear is twice that of the fixed teeth.
[0013] Compared with the prior art, this utility model provides a lock installation structure with high security, which has the following advantages:
[0014] 1. This highly secure lock installation structure, through the cooperation of connecting posts, locking gears, and fixing teeth, effectively eliminates the security risk of one person opening the door after possessing all the keys. It ensures that the lock cannot be opened by inserting less than three keys, thereby greatly improving the security of the device.
[0015] 2. This highly secure lock installation structure, through the cooperation of a fixed rod, a telescopic rod, and a second spring, further enhances the safety of the device. When the telescopic rod is not disengaged from the locking groove, it cannot drive the connecting column to rotate, thereby further reducing safety hazards. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of a high-security lock installation structure according to the present invention;
[0017] Figure 2 This is a first schematic cross-sectional view of the cavity structure of this utility model;
[0018] Figure 3 This is a cross-sectional structural diagram of the connecting column of this utility model;
[0019] Figure 4 This is a second schematic cross-sectional view of the cavity structure of this utility model;
[0020] Figure 5 This is a cross-sectional view of the fixing rod of this utility model.
[0021] In the diagram: 1. Mounting box; 2. Cavity; 3. Connecting post; 4. Lock hole; 5. Unlocking rod; 6. Sliding chamber; 7. Locking gear; 8. Fixed teeth; 9. Synchronizing groove; 10. Synchronizing block;
[0022] 11. Retaining ring; 12. First spring; 13. Clock spring; 14. Engaging groove; 15. Fixing rod; 16. Telescopic groove; 17. Telescopic rod; 18. Second spring; 19. Support shaft; 20. Transmission gear sleeve. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] Please see Figures 1-5 This utility model provides a technical solution: a high-security lock installation structure, including an installation box 1, an internal cavity 2, and three connecting posts 3 movably fitted inside the installation box 1. Each of the three connecting posts 3 has a keyhole 4 for inserting a key. Three unlocking rods 5 for unlocking the lock are rotatably connected inside the cavity 2. The rear ends of the three unlocking rods 5 rotatably extend through the interior of the installation box 1. Each of the three connecting posts 3 has a sliding chamber 6. The three unlocking rods 5 slide into the sliding chamber 6 respectively. After the key is inserted, pushing the key backward causes the connecting post 3 to slide outside the unlocking rod 5. The sliding chamber 6 and the keyhole 4 are connected.
[0025] Each of the three connecting posts 3 is fixedly fitted with a locking gear 7 for locking the connecting post 3. The three locking gears 7 are meshed together. The top wall of the cavity 2 is fixedly connected with a fixed tooth 8 for restricting the locking gear 7. The fixed tooth 8 and the locking gear 7 are meshed together. The movement of the connecting post 3 can drive the movement of the locking gear 7. At this time, the corresponding locking gear 7 will separate from the fixed tooth 8. After inserting three keys at the same time, the three locking gears 7 are all separated from the fixed tooth 8 and the three locking gears 7 mesh with each other. Therefore, the lock can be unlocked by manually turning the three keys at the same time. A support shaft 19 is rotatably connected between two adjacent locking gears 7. A transmission gear sleeve 20 is fixedly fitted on the outside of the two support shafts 19. The transmission gear sleeve 20 is meshed with the locking gears 7 on both sides.
[0026] The width of the locking gear 7 is twice that of the fixed teeth 8, so that after the locking gear 7 is separated from the fixed teeth 8, the two adjacent locking gears 7 will not separate.
[0027] The surfaces of the three unlocking rods 5 are all provided with synchronization grooves 9 for limiting the movement trajectory of the structure. The inner walls of the three sliding chambers 6 are all fixedly connected with synchronization blocks 10 that serve as connections. The three synchronization blocks 10 are slidably connected inside the three synchronization grooves 9. When the key drives the connecting post 3 to rotate, the unlocking rods 5 will rotate under the cooperation of the synchronization blocks 10 and the synchronization grooves 9.
[0028] Three fixing rings 11 are fixedly connected to the rear inner wall of cavity 2, and the three fixing rings 11 are respectively wrapped around the outside of the three unlocking rods 5.
[0029] Each of the three fixed rings 11 has a first spring 12 fixedly connected to its surface to facilitate the reset of the connecting post 3. The three first springs 12 are in contact with the rear end faces of the three connecting posts 3 respectively. When the connecting post 3 moves, the first spring 12 will deform, so that the connecting post 3 can be reset after the key is removed.
[0030] The three fixed rings 11 are all fixedly connected to a spring 13 to facilitate the reset of the unlocking rod 5. The end of the spring 13 away from the fixed ring 11 is fixedly connected to the unlocking rod 5. When the connecting post 3 drives the unlocking rod 5 to rotate, it will cause the spring 13 to deform, so that the unlocking rod 5 can be reset after the key is pulled out.
[0031] The top wall of cavity 2 is fixedly connected to a fixing rod 15, which plays a fixing role. The inside of the fixing rod 15 is provided with a telescopic groove 16. The inside of the telescopic groove 16 is slidably connected to a telescopic rod 17, which is also used to lock the connecting column 3. A second spring 18 for resetting the telescopic rod 17 is fixedly connected between the telescopic rod 17 and the inner wall of the telescopic groove 16.
[0032] The surface of the connecting column 3 is provided with a locking groove 14, which is adapted to the telescopic rod 17. The locking groove 14 is connected to the sliding chamber 6. The telescopic rod 17 is lifted by a key, thereby pushing the telescopic rod 17 into the interior of the telescopic groove 16, and making the arc surface at the bottom of the telescopic rod 17 flush with the bottom end of the locking groove 14.
[0033] In the above embodiment, the distance between the three connecting posts 3 is at least 30 centimeters, thereby further improving the overall security of the device and effectively preventing single-person unlocking.
[0034] Working principle:
[0035] When this highly secure lock installation structure is in use, if one of the keys is inserted into the sliding chamber 6 through the keyhole 4, the key will first push the telescopic rod 17 up, thereby pushing the telescopic rod 17 into the telescopic groove 16, and making the arc surface at the bottom of the telescopic rod 17 flush with the bottom end of the locking groove 14, thus finally canceling the locking of the connecting post 3.
[0036] After the key is inserted, pushing the key backward causes the connecting pin 3 to slide outside the unlocking rod 5. The movement of the connecting pin 3 drives the locking gear 7 to move. At this time, the corresponding locking gear 7 will separate from the fixed teeth 8. Since the width of the locking gear 7 is twice the width of the fixed teeth 8, the locking gear 7 and the side locking gear 7 are still in a meshing state. The side locking gear 7 is still restricted by the fixed teeth 8. Therefore, when less than three keys are inserted, the connecting pin 3 cannot rotate, and thus the unlocking rod 5 cannot be driven to unlock the lock.
[0037] When the key causes the connecting post 3 to rotate, the unlocking rod 5 will rotate in conjunction with the synchronization block 10 and the synchronization groove 9.
[0038] Subsequently, after inserting three keys simultaneously, the three locking gears 7 are separated from the fixed teeth 8 and the three locking gears 7 mesh with each other. Therefore, the lock can be unlocked by manually turning the three keys simultaneously and relying on the cooperation of the transmission gear sleeve 20.
[0039] At the same time, when the connecting post 3 moves, the first spring 12 will deform, so that the connecting post 3 can be reset after the key is removed.
[0040] When the connecting post 3 drives the unlocking lever 5 to rotate, it will cause the spring 13 to deform, so that the unlocking lever 5 can be reset after the key is pulled out.
[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A lock installation structure with high security, comprising an installation box (1), characterized in that: The inside of the installation box (1) is provided with a cavity (2), the inside of the installation box (1) is movably sleeved with three connecting columns (3), the surfaces of the three connecting columns (3) are provided with lock holes (4), the inside of the cavity (2) is rotatably connected with three unlocking rods (5), the rear ends of the three unlocking rods (5) are rotatably connected out of the inside of the installation box (1), the insides of the three connecting columns (3) are provided with sliding cavities (6), the three unlocking rods (5) are slidably extended into the insides of the sliding cavities (6), the sliding cavities (6) and the lock holes (4) are connected, the outsides of the three connecting columns (3) are fixedly sleeved with locking gears (7), the three locking gears (7) are meshedly connected, the top wall of the cavity (2) is fixedly connected with fixed teeth (8), the fixed teeth (8) and the locking gears (7) are meshedly connected, adjacent two locking gears (7) are rotatably connected with support shafts (19), the outsides of the two support shafts (19) are fixedly sleeved with transmission gear sleeves (20), the transmission gear sleeves (20) and the locking gears (7) on the two sides are meshedly connected.
2. The lockset mounting structure according to claim 1, wherein: The surfaces of the three unlocking rods (5) are provided with synchronous grooves (9), the inner walls of the three sliding cavities (6) are fixedly connected with synchronous blocks (10), the three synchronous blocks (10) are slidably connected in the three synchronous grooves (9) respectively.
3. The lockset mounting structure according to claim 2, wherein: The rear inner walls of the cavity (2) are fixedly connected with three fixed rings (11), the three fixed rings (11) surround the outsides of the three unlocking rods (5) respectively.
4. The lock installation structure according to claim 3, wherein: The surfaces of the three fixed rings (11) are fixedly connected with first springs (12), the three first springs (12) contact the rear end faces of the three connecting columns (3) respectively.
5. The lockset mounting structure according to claim 4, wherein: The insides of the three fixed rings (11) are fixedly connected with clockwork springs (13), the ends, away from the fixed rings (11), of the clockwork springs (13) are fixedly connected with the unlocking rods (5).
6. The lock installation structure according to claim 1, wherein: The top wall of the cavity (2) is fixedly connected with a fixed rod (15), the inside of the fixed rod (15) is provided with an expansion groove (16), the inside of the expansion groove (16) is slidably connected with an expansion rod (17), the second spring (18) is fixedly connected between the expansion rod (17) and the inner wall of the expansion groove (16).
7. The lock installation structure according to claim 6, wherein: The surface of the connecting column (3) is provided with a clamping groove (14), the clamping groove (14) is matched with the expansion rod (17), and the clamping groove (14) is connected with the sliding cavity (6).
8. The lock installation structure according to claim 1, wherein: The width of the locking gear (7) is twice the width of the fixed teeth (8).