Multi-lock linkage structure of garage door

Abstract

The utility model discloses a multi-lock linkage structure of a warehouse door. The multi-lock linkage structure comprises a lock bolt, an electronic lock set, a lock seat, a middle connecting rod, a first primary cross rod, a second primary cross rod, a secondary cross rod, a linkage frame, a retaining rod and a telescopic sliding seat. The electronic lock set is reasonable in structural design, the electronic lock set comprises four electronic locks, only when any three electronic locks stretch out and draw back synchronously, the first primary cross rod and the second primary cross rod are matched to drive the secondary cross rod to move horizontally, then the middle connecting rod drives the retaining rod to stretch out and draw back, and the locking or unlocking purpose is achieved correspondingly; when the linkage frame is unlocked, the linkage frame can be pushed to move backwards so as to drive the lock bolt to retreat from the lock hole, and the unlocking purpose is achieved; according to the utility model, the integral linkage effect is good, the problems that the traditional steel wire rope linkage is easy to wear and break are effectively solved, the stability and the reliability of the structure are improved, the service life is long, the anti-theft effect is better, and the safety is high.

Description

Technical Field

[0001] The utility model relates to a lock technology, in particular to a multi-lock linkage structure for a warehouse door. Background Art

[0002] The doors of important equipment such as safes and vaults are typically equipped with multiple locks, including cassette locks, electronic locks, fingerprint locks, and electric locks. Under normal circumstances, only one lock can be locked as a backup; the others must be engaged to unlock the door. If one lock malfunctions, the backup lock must be activated, a concept known as "multiple locks with one backup." If four locks are installed, any three must be engaged under normal circumstances, also known as "four-choose-three." There are many such devices with existing mechanical structures, such as the invention patent application with publication number "CN115726637A" and titled "Multi-functional Multi-lock Linkage Intelligent Door", which discloses a multi-functional multi-lock linkage intelligent door, including a door body and a multi-lock linkage device installed in the door body, the multi-lock linkage device including a mounting plate, a first lock, a second lock, a first movable pulley, a second movable pulley, a fixed pulley, a steel wire rope, and a self-resetting lock bolt, the first movable pulley being fixedly mounted on the front end of the lock tongue of the second lock, a plurality of fixed pulleys being dispersedly mounted on the mounting plate, the self-resetting lock bolt including a lock bolt guide plate, a lock bolt, a lock bolt connecting seat, and a compression spring, the lock bolt passes through two through holes on the lock bolt guide plate and is connected to the lock bolt connecting seat, the compression spring is sleeved on the lock bolt between the two side plates, the lock bolt connecting seat is equipped with a second movable pulley, the steel wire rope alternately passes around the first movable pulley, the second movable pulley, and the fixed pulley, one end of the steel wire rope is fixed on the mounting plate, and the other end is fixed on the first lock. By opening two or more locks simultaneously, the wire rope is pulled and the lock bolt is driven to complete the unlocking process. Although it can achieve the purpose of multi-lock linkage opening, due to the use of wire rope linkage, after long-term operation, the wire rope is easily stretched or broken due to stress, affecting the linkage unlocking effect. Utility Model Content

[0003] In view of the above-mentioned shortcomings, the purpose of the present invention is to provide a multi-lock linkage structure for a warehouse door with reasonable structural design and linked unlocking effect.

[0004] In order to achieve the above-mentioned purpose, the technical solution provided by the present utility model is:

[0005] A multi-lock linkage structure for a warehouse door, comprising a lock bolt, an electronic lock group, a lock seat, an intermediate connecting rod, a first primary cross bar, a second primary cross bar, a secondary cross bar, a linkage frame, a backstop rod and a telescopic slide, wherein the lock bolt is arranged on the front side of the linkage frame, the telescopic slide is located at the rear side of the linkage frame, the backstop rod is movably arranged on the telescopic slide and can prevent the linkage frame from moving backward when it is extended; the electronic lock group comprises a first electronic lock, a second electronic lock, a third electronic lock and a fourth electronic lock, and the first electronic lock, the second electronic lock, the third electronic lock and the fourth electronic lock are arranged side by side in sequence on the lock bolt. On the seat, the two ends of the first primary cross bar are correspondingly hinged on the lock tongues of the first and second electronic locks, and the two ends of the second primary cross bar are correspondingly hinged on the lock tongues of the third and fourth electronic locks. The two ends of the secondary cross bar are bent to one side and correspondingly hinged on the middle parts of the first and second primary cross bars. The intermediate connecting rod is arranged on the lock seat through a linear guide component corresponding to the middle position of the secondary cross bar. The intermediate connecting rod is hinged to the secondary cross bar and is perpendicular to it. The end of the intermediate connecting rod is connected to the stop rod and can drive the stop rod to perform telescopic action on the telescopic slide.

[0006] As a preferred embodiment of the present invention, the linear guide component includes two guide posts, with guide holes adapted for the two posts located on the front and rear portions of the intermediate link. The cooperation between the two guide posts and the guide holes in the intermediate link ensures stability and precision during movement, reducing the risk of linkage failure due to wobbling or misalignment and enhancing the reliability of the linkage structure.

[0007] As a preferred embodiment of the present invention, the end of the intermediate connecting rod is provided with an inclined long hole, and the backstop rod is provided with a sliding post that matches the inclined long hole. This has a simple structure, and the cooperation between the sliding post and the inclined long hole enables precise control of the backstop rod, and has good structural stability.

[0008] As a preferred embodiment of the present invention, the telescopic slide is provided with a guide post, and the linkage frame is provided with a guide groove adapted to the guide post. The cooperation between the guide post and the guide groove of the linkage frame provides stable guidance for the movement of the linkage frame, ensuring the smoothness and reliability of the linkage process. It also provides auxiliary position limiting for the telescopic slide, improving its structural stability.

[0009] As a preferred solution of the present invention, a matching seat is provided on the linkage frame corresponding to the position of the backstop rod. The backstop rod and the matching seat cooperate with each other to stably prevent the linkage frame from moving backward, thereby improving the overall stability and safety of the linkage structure.

[0010] As a preferred solution of the present invention, there are multiple locking bolts, which are arranged side by side at intervals on the front side of the linkage frame, thereby increasing the safety of the door lock.

[0011] As a preferred solution of the present invention, the first electronic lock includes a lock housing, a driving motor, a driving gear, a driven gear, a pulling rod and a lock tongue, the lock housing is provided with an opening for the lock tongue to perform a telescopic movement, the lock tongue is movably arranged on the opening, the lower end of the lock tongue is provided with a pulling hole, the driven gear is arranged in the lock housing through a mounting shaft corresponding to the position of the lock tongue, one end of the pulling rod is fixed to the mounting shaft, and the other end extends into the pulling hole, the driving motor is arranged in the lock housing, the driving gear is arranged on the driving shaft of the driving motor and meshes with the driven gear; the upper edge position of the pulling hole is provided with a stopping inclined surface that can match the end face of the pulling rod when the lock tongue is raised to a desired position, so as to achieve the purpose of positioning locking, and the lower edge position of the pulling hole is provided with a stopping inclined surface that matches the end face of the pulling rod when the lock tongue is lowered to a desired position, so as to achieve the purpose of positioning opening, with high security.

[0012] As a preferred solution of the present invention, the structures of the first, second, third and fourth electronic locks are consistent, which simplifies the production and maintenance process, ensures the consistency and interchangeability of the performance of each lock, and facilitates system upgrades and maintenance.

[0013] The beneficial effects of the present invention are as follows: the structural design of the present invention is reasonable, the electronic lock group includes four electronic locks, and only when any three of the electronic locks perform telescopic movements at the same time can the first and second primary cross bars cooperate to drive the secondary cross bar to move horizontally, and then the middle connecting rod drives the backstop bar to perform telescopic movements, thereby achieving the purpose of locking or unlocking accordingly; when the locking of the linkage frame is released, the linkage frame can be pushed to move backward and then drive the lock bolt to exit the lock hole, thereby achieving the purpose of unlocking; the overall linkage effect of the present invention is good, which effectively solves the problems of easy wear and easy breakage of traditional wire rope linkage, improves the stability and reliability of the structure, has a long service life, has a good anti-theft effect, and is highly safe.

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 .

[0016] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 .

[0017] Figure 3 It is a structural diagram of the electronic lock group in the utility model.

[0018] Figure 4 It is a structural diagram of the first electronic lock in the utility model.

[0019] Figure 5 It is a schematic diagram of the extended structure of the first electronic lock in the utility model.

[0020] Figure 6 It is a schematic diagram of the retracted structure of the first electronic lock in the present utility model.

[0021] Figure 7 It is a structural schematic diagram of the utility model applied to a warehouse door. DETAILED DESCRIPTION

[0022] For example, see Figures 1 to 6 The present embodiment provides a multi-lock linkage structure for a warehouse door, which includes a lock bolt 1, an electronic lock group 2, a lock seat 3, an intermediate connecting rod 4, a first primary cross bar 5, a second primary cross bar 6, a secondary cross bar 7, a linkage frame 8, a stop rod 9 and a telescopic slide 10.

[0023] The lock bolts 1 are arranged on the front side of the linkage frame 8. In this embodiment, there are five lock bolts 1, which are arranged side by side at intervals on the front side of the linkage frame 8 to increase the safety of the door lock. In other embodiments, the number of the lock bolts 1 can be set as needed.

[0024] The telescopic slide 10 is located at the rear of the linkage frame 8. The stop rod 9 is movably mounted on the telescopic slide 10 and prevents the linkage frame 8 from moving backward during extension. Preferably, a guide post 101 is provided on the telescopic slide 10, and a guide groove is provided on the linkage frame 8 to mate with the guide post 101. The cooperation between the guide post 101 and the guide groove on the linkage frame 8 provides stable guidance for the movement of the linkage frame 8, ensuring the smoothness and reliability of the linkage process. It also provides auxiliary positioning for the telescopic slide 10, enhancing its structural stability.

[0025] The electronic lock group 2 includes a first electronic lock 21, a second electronic lock 22, a third electronic lock 23 and a fourth electronic lock 24. The first electronic lock 21, the second electronic lock 22, the third electronic lock 23 and the fourth electronic lock 24 are sequentially arranged side by side on the lock seat 3. Figure 4The first electronic lock 21 includes a lock housing 211, a drive motor 212, a drive gear 213, a driven gear 214, a pull rod 215 and a lock tongue 216. The lock housing 211 is provided with an opening for the lock tongue 216 to retract and retract. The lock tongue 216 is movably arranged on the opening. The lower end of the lock tongue 216 is provided with a pull-out opening 2161. The position of the driven gear 214 corresponding to the lock tongue 216 is arranged in the lock housing 211 through a mounting shaft 217. One end of the pull rod 215 is fixed on the mounting shaft 217, and the other end extends into the pull-out opening 2161. The drive motor 212 is disposed in the lock housing 211, and the drive gear 213 is disposed on the drive shaft of the drive motor 212 and meshes with the driven gear 214. The upper edge of the pull-out opening 2161 is provided with a stop bevel 2162 that can mate with the end face of the pull rod 215 when the lock tongue 216 is raised to the desired position, thereby achieving the purpose of positioning and locking. The lower edge of the pull-out opening 2161 is provided with a stop bevel 2163 that mates with the end face of the pull rod 215 when the lock tongue 216 is lowered to the desired position, thereby achieving the purpose of positioning and opening, with high security. The structures of the first electronic lock 21, the second electronic lock 22, the third electronic lock 23, and the fourth electronic lock 24 are consistent. This simplifies the production and maintenance processes, while ensuring the consistency and interchangeability of the performance of each lock, facilitating system upgrades and maintenance.

[0026] The two ends of the first primary crossbar 5 are respectively hinged to the lock tongues of the first and second electronic locks 21 and 22. The two ends of the second primary crossbar 6 are respectively hinged to the lock tongues of the third and fourth electronic locks 23 and 24. The two ends of the secondary crossbar 7 are bent to one side and respectively hinged to the middle portions of the first and second primary crossbars 5 and 6. The intermediate link 4 is disposed on the lock base 3 via a linear guide component corresponding to the middle position of the secondary crossbar 7. Specifically, the linear guide component includes two guide posts 42. The front and rear portions of the intermediate link 4 are respectively provided with guide holes 43 that match the two guide posts 42. The cooperation between the two guide posts 42 and the guide holes 43 on the intermediate link 4 ensures the stability and precision of the intermediate link 4 during movement, reduces the risk of linkage failure due to shaking or offset, and enhances the reliability of the linkage structure.

[0027] The intermediate connecting rod 4 is hingedly connected to the secondary crossbar 7 and is perpendicular to it. The end of the intermediate connecting rod 4 is connected to the anti-retraction rod 9 and can drive the anti-retraction rod 9 to perform a telescopic movement on the telescopic slide 10. Specifically, an inclined long hole 41 is provided at the end of the intermediate connecting rod 4, and a sliding column 91 is provided on the anti-retraction rod 9 to match the inclined long hole 41. The structure is simple, and the sliding column 91 and the inclined long hole 41 cooperate to achieve precise control of the anti-retraction rod 9, and the structure has good stability. Preferably, a matching seat is provided on the linkage frame 8 at a position corresponding to the anti-retraction rod 9. The matching of the anti-retraction rod 9 and the matching seat can stably prevent the linkage frame 8 from moving backward, thereby improving the overall stability and safety of the linkage structure.

[0028] See also Figure 7 The utility model is a multi-lock linkage structure for a warehouse door. Specifically, a linkage frame 8 is mounted on the warehouse door 11 via a pulley assembly 12, and a lock seat 3 and a telescopic slide 10 are fixed to the warehouse door 11. A rack 13 is provided on the linkage frame 8, and a handle is mounted on the front of the warehouse door 11. The handle's shaft extends into the back of the warehouse door 11 and is provided with a gear 14 that meshes with the rack 13. During use, only when any three of the first electronic lock 21, the second electronic lock 22, the third electronic lock 23, and the fourth electronic lock 24 are synchronously extended and retracted can the first primary crossbar 5 and the second primary crossbar 6 cooperate to drive the secondary crossbar 7 to translate, and then the intermediate connecting rod 4 drives the backstop rod 9 to retract and retract, thereby achieving the purpose of locking or unlocking. To release the linkage frame 8, the handle is rotated, and the gear 14 and the rack 13 cooperate to push the linkage frame 8 backward, thereby driving the lock bolt 1 out of the keyhole, achieving the purpose of unlocking. The operation is simple and convenient.

[0029] Based on the disclosure and teachings of the above description, those skilled in the art may also make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the scope of protection of the claims of the present invention. In addition, although some specific terms are used in this description, these terms are only for convenience of description and do not constitute any limitation to the present invention. Structures that are the same or similar to the above structures are all within the scope of protection of the present invention.

Claims

1. A multi-lock linkage structure for a garage door, comprising a lock bolt and an electronic lock assembly, characterized in that: It also includes a lock seat, an intermediate connecting rod, a first primary cross bar, a second primary cross bar, a secondary cross bar, a linkage frame, a backstop rod and a telescopic slide, the lock bolt is arranged on the front side of the linkage frame, the telescopic slide is located at the rear side of the linkage frame, the backstop rod is movably arranged on the telescopic slide, and can prevent the linkage frame from moving backward when it is extended; the electronic lock group includes a first electronic lock, a second electronic lock, a third electronic lock and a fourth electronic lock, the first electronic lock, the second electronic lock, the third electronic lock and the fourth electronic lock are arranged side by side on the lock seat in sequence, the first electronic lock The two ends of the primary cross bar are correspondingly hinged on the lock tongues of the first and second electronic locks, the two ends of the second primary cross bar are correspondingly hinged on the lock tongues of the third and fourth electronic locks, the two ends of the secondary cross bar are bent to one side and correspondingly hinged on the middle parts of the first and second primary cross bars, the intermediate connecting rod is arranged on the lock seat through a linear guide component corresponding to the middle position of the secondary cross bar, the intermediate connecting rod is hinged to the secondary cross bar and is perpendicular to it, the end of the intermediate connecting rod is connected to the stop rod, and can drive the stop rod to perform telescopic action on the telescopic slide.

2. The multi-lock linkage structure for a garage door according to claim 1, characterized in that: The linear guide component includes two guide pillars, and the front and rear parts of the intermediate connecting rod are respectively provided with guide holes that are adapted to the two guide pillars.

3. The multi-lock linkage structure for a garage door according to claim 1, characterized in that: An inclined long hole is provided on the end of the intermediate connecting rod, and a sliding column adapted to the inclined long hole is provided on the anti-retraction rod.

4. The multi-lock linkage structure for a garage door according to claim 1, characterized in that: A guide column is provided on the telescopic slide, and a guide groove adapted to the guide column is provided on the linkage frame.

5. The multi-lock linkage structure for a garage door according to claim 1, characterized in that: A matching seat is provided on the linkage frame at a position corresponding to the anti-retraction rod.

6. The multi-lock linkage structure for a garage door according to any one of claims 1 to 5, characterized in that: There are multiple locking bolts, which are arranged side by side at intervals on the front side of the linkage frame.

7. The multi-lock linkage structure for a garage door according to any one of claims 1 to 5, characterized in that: The first electronic lock includes a lock housing, a driving motor, a driving gear, a driven gear, a pulling rod and a lock tongue, the lock housing is provided with an opening for the lock tongue to perform a telescopic movement, the lock tongue is movably arranged on the opening, the lower end of the lock tongue is provided with a pulling port, the driven gear is arranged in the lock housing through a mounting shaft corresponding to the position of the lock tongue, one end of the pulling rod is fixed on the mounting shaft, and the other end extends into the pulling port, the driving motor is arranged in the lock housing, the driving gear is arranged on the driving shaft of the driving motor and meshes with the driven gear; the upper edge position of the pulling port is provided with a stopping inclined surface that can adapt to the end face of the pulling rod when the lock tongue is raised to a desired position, and the lower edge position of the pulling port is provided with a stopping inclined surface that adapts to the end face of the pulling rod when the lock tongue is lowered to a desired position.

8. The multi-lock linkage structure for a garage door according to claim 7, characterized in that: The structures of the first electronic lock, the second electronic lock, the third electronic lock and the fourth electronic lock are consistent.

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