Smart palm vein refrigerator lock

Abstract

This utility model provides an intelligent palm vein refrigerator lock, belonging to the field of refrigerator lock technology. It includes a steel cable, a main lock, and a secondary lock. Both ends of the steel cable are connected to the main lock and the secondary lock, respectively. The main lock contains palm vein recognition components and a control component. These components work together to collect and recognize palm vein information. After the recognition signal is transmitted to the control component, it drives the bolt to unlock. One end of the steel cable is a locking rod that engages with the main lock bolt, while the other end is a fixed latch that engages with the secondary lock's limit switch, thus locking the lock. The main lock is equipped with a sliding cover and a lens to improve protection and assembly stability. A card-swipe antenna is added to expand the unlocking method, and a USB charging port ensures power supply. Through reasonable assembly and coordination, the overall structure enables keyless unlocking, improving ease of use and security, and ensuring stable operation of the lock.

Description

Technical Field

[0001] This utility model belongs to the field of refrigerator lock technology, specifically relating to an intelligent palm vein refrigerator lock. Background Technology

[0002] Currently, most refrigerator locks still use mechanical locks that can only be opened with a key. This has drawbacks such as keys being easily lost, forgotten, or the lock cylinder becoming rusty and unable to open, making them vulnerable to theft. Furthermore, the need for a key to unlock each time a refrigerator is used, coupled with the inconvenience of frequent use and carrying a key, causes considerable inconvenience in people's lives. Locks, as part of smart homes, are welcomed for their convenience and technological appeal. Fingerprint locks are a common example, but in recent years, many users have reported issues with fingerprint locks, such as false recognition. Factors like worn fingerprints in the elderly, shallow fingerprints in children, sweaty, wet, oily, or peeling hands can all reduce the success rate of recognition. Moreover, fingerprint information is easily stolen by criminals, resulting in a lack of both convenience and security. Utility Model Content

[0003] To at least partially overcome the problems existing in related technologies, this utility model provides an intelligent palm vein refrigerator lock.

[0004] According to embodiments of the present invention, the present invention provides: The intelligent palm vein refrigerator lock includes a steel cable, a main lock, and a secondary lock. The two ends of the steel cable are respectively connected to the main lock and the secondary lock. The main lock includes a front shell, a palm vein module, an infrared lamp, an infrared lens, a control component, a bolt, and a first spring. The front shell has holes for the infrared lens, infrared lamp, transmitting and receiving lamps, a USB charging port, and a locking bar. The infrared lens, infrared lamp, and transmitting and receiving lamps are respectively embedded in their corresponding holes. The palm vein module and the control component are fixed inside the front shell by a bracket and are provided with… The lock has a latch groove, and the latch is located in the latch groove. The palm vein module is connected to the infrared lens and the infrared lamp. The control component is connected to the latch. One side of the latch abuts against the first spring, and the other end of the first spring is fixed to the inner wall of the front shell. The locking rod at one end of the steel cable passes through the locking rod hole and cooperates with the latch. The bottom shell of the secondary lock has a latch hole and a limiting groove. The fixing latch at the other end of the steel cable is engaged in the latch hole and limited by the limiting groove. The bottom cover is closed and fixed to the bottom of the bottom shell.

[0005] In the above, the front shell is also provided with a lens, which is fixedly mounted on the front end face of the front shell. The lens is provided with a palm vein transparent recognition hole that corresponds to and matches the infrared lens hole and the infrared lamp hole. The lens is pressed and fixed by the front cover. The front cover is closed and fixed to the front end of the front shell and is provided with a clearance hole to avoid the lens.

[0006] In the above, a sliding cover is slidably mounted on the outer side of the front shell, and slide rails that cooperate with the sliding cover are provided on both sides of the front shell. The slide groove on the inner side of the sliding cover is slidably engaged with the slide rail. A spring arm is provided on the sliding cover, which engages with the locking groove of the front shell. Several male and female buckles are provided on the opposite sides of the sliding cover and the front cover of the front shell, and the male buckles engage with the female buckles.

[0007] As described above, the sliding cover has a through hole, which corresponds to the fixing hole on the front shell, and is used to cooperate with fasteners to reinforce and fix the front shell and the sliding cover.

[0008] In the above, the locking rod has a locking rod groove, and one end of the locking tongue has a locking platform that matches the locking rod groove. The locking tongue is locked and limited by the locking platform and the locking rod groove. A pusher is fixedly connected to one side of the locking tongue, and the locking tongue is driven by the drive end of the control component.

[0009] In the above, a second spring is provided between the latch and the front shell. The second spring is sleeved on the guide shaft of the latch, and the two ends of the second spring abut against the latch and the inner wall of the front shell, respectively, to assist the latch in resetting.

[0010] In the above, a semi-transparent identification hole is also provided on the lens, which is correspondingly provided with the transmitting and receiving lamp hole, and a semi-transparent film is attached to the semi-transparent identification hole to optimize the signal transmission of the transmitting and receiving lamp.

[0011] As described above, the front shell is provided with a card swiping area, and a card swiping antenna is embedded in the card swiping area. The card swiping antenna is electrically connected to the control component.

[0012] In the above, the bracket is fixed to the inside of the front shell by bolts, and the bracket has multiple assembly holes. The palm vein module and the control component are respectively fixed to the corresponding assembly holes by screws.

[0013] In the above, the steel cable, the locking rod, and the fixing buckle are all fixed by crimping. The locking rod and the fixing buckle are provided with anti-detachment protrusions. The anti-detachment protrusions are pressed tightly with the inner core of the steel cable to prevent the steel cable from falling off.

[0014] As can be seen from the above specific embodiments of this utility model, it has at least the following beneficial effects: 1. By using a palm vein module, infrared camera, and infrared lights, palm vein recognition unlocking is achieved. Combined with card swiping and Bluetooth APP unlocking methods, unlocking can be completed without a key, avoiding unlocking obstacles caused by lost or forgotten keys or rusted lock cylinders. Palm vein information is not easily stolen, and the transmitting and receiving lights achieve non-contact wake-up recognition, reducing the risk of information leakage and cross-infection of bacteria. It solves the problems of key dependence, poor recognition stability, and lack of information security in unlocking operations, improving the reliability and security of unlocking operations, and ensuring information security and smooth operation for users.

[0015] 2. The two ends of the steel cable are connected to the main lock and the auxiliary lock respectively via locking rods and fixed latches. The locking rods are engaged with the lock tongue for limiting the movement, and the fixed latches are engaged with the latch holes and limiting grooves of the auxiliary lock's bottom shell for limiting the movement, thus connecting the lock to the refrigerator. The front shell and the sliding cover are slidably connected via slide rails and slide grooves. The elastic arm is engaged with the lock groove, and the male and female latches are engaged and fixed. Through holes are used with fasteners to reinforce the assembly and improve the overall structural stability of the lock. The bracket is fixed to the inside of the front shell with bolts, and the palm vein module and control components are fixed to the mounting holes of the bracket with screws. The assembly positions of each component ensure the structural integrity of the lock during long-term use and reduce the probability of components loosening or falling off.

[0016] 3. The bolt, in conjunction with the first and second springs, automatically extends and retracts to ensure the locking and unlocking actions are performed. The steel cable is pressed together with the lock bar and the fixed buckle, and the anti-detachment boss is pressed tightly against the inner core of the steel cable to prevent the steel cable from falling off. The lens has a transparent palm vein recognition hole and a semi-transparent recognition hole to optimize the transmission of infrared signals and transmitting and receiving light signals, ensuring the normal operation of the recognition components. The structure of each component takes into account both functionality and assembly stability, so as to achieve continuous and stable operation of the lock, extend the service life of the lock, and ensure that all functions are performed during use. Attached Figure Description

[0017] The accompanying drawings, which are part of the specification of this utility model, illustrate embodiments of the utility model and are used together with the description of the specification to illustrate the principles of the utility model.

[0018] Figure 1 This is a schematic diagram of the assembly structure of the steel cable, main lock, and auxiliary lock of this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the steel cable and main lock after the present invention is separated.

[0020] Figure 3 This is a schematic diagram of the first cross-sectional structure after the present invention is assembled.

[0021] Figure 4 This is a schematic diagram of the second cross-sectional structure after the present invention is assembled.

[0022] Figure 5 This is a cross-sectional view of the front shell of this utility model after assembly.

[0023] Figure 6 This is a schematic diagram of the first structure of the front shell of this utility model.

[0024] Figure 7 This is a schematic diagram of the second structure of the front shell of this utility model.

[0025] Figure 8 This is the assembly structure of the sliding cover of this utility model.

[0026] Figure 9 This is a schematic diagram of the front cover structure of this utility model.

[0027] Figure 10 This is a schematic diagram of the assembly structure of the bracket and the product of this utility model.

[0028] Figure 11 This is a schematic diagram of the assembly structure of the bracket of this utility model.

[0029] Figure 12 This is a schematic diagram of the installation structure of the palm vein module of this utility model.

[0030] Figure 13 This is a schematic diagram of the structure of the lens of this utility model.

[0031] Figure 14 This is a schematic diagram of the contact structure at both ends of the steel cable of this utility model.

[0032] Figure 15 This is a schematic diagram of the installation structure of the steel cable and the bottom shell of this utility model.

[0033] Figure 16 This is a schematic diagram of the assembly structure of the bottom cover of this utility model.

[0034] Explanation of reference numerals in the attached figures: 1. Steel cable; 2. Main lock; 3. Secondary lock; 4. Lens; 5. Front shell; 6. Infrared lens hole; 7. Infrared lamp hole; 8. USB charging port; 9. Locking bar hole; 10. Palm vein module; 11. Infrared lamp; 12. Infrared lens; 13. Control component; 14. Bracket; 15. Push-pull; 16. Locking bar; 17. Locking tongue; 18. First spring; 19. Second spring; 20. Fixed latch; 21. Locking bar groove; 22. Locking tongue groove; 23. Front cover; 24. Male latch; 25. Sliding cover; 26. Female latch; 27. Locking groove; 28. Through hole; 29. ​​Slide rail; 30. Slide groove; 31. Bottom shell; 32. Locking hole; 33. Limiting groove; 34. Bottom cover; 35. Elastic arm; 36. Transmitter / receiver lamp hole; 37. Transmitter / receiver lamp; 38. Palm vein transparent recognition hole; 39. Semi-transparent recognition hole. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the spirit of the contents disclosed in this utility model will be clearly explained below with reference to the accompanying drawings and detailed description. Any person skilled in the art who understands the embodiments of this utility model can make changes and modifications based on the technology taught in this utility model without departing from the scope of this utility model.

[0036] Example:

[0037] like Figures 1 to 16 As shown, this utility model provides an intelligent palm vein refrigerator lock, including a steel cable 1, a main lock 2, and a secondary lock 3. The two ends of the steel cable 1 are respectively connected to the main lock 2 and the secondary lock 3. The main lock 2 includes a front shell 5, a palm vein module 10, an infrared lamp 11, an infrared lens 12, a control component 13, a locking tongue 17, and a first spring 18. The front shell 5 has an infrared lens hole 6, an infrared lamp hole 7, a transmitter / receiver lamp hole 36, a USB charging port 8, and a locking bar hole 9. The infrared lens 12, infrared lamp 11, and transmitter / receiver lamp 37 are respectively embedded in the corresponding holes. The palm vein module 10 and the control component 13 are fixed by a bracket 14. Inside the front housing 5, a locking tongue groove 22 is provided, and a locking tongue 17 is located within the locking tongue groove 22. The palm vein module 10 is connected to the infrared lens 12 and the infrared lamp 11, and the control component 13 is connected to the locking tongue 17. One side of the locking tongue 17 abuts against the first spring 18, and the other end of the first spring 18 is fixed to the inner wall of the front housing 5. The locking rod 16 at one end of the steel cable 1 passes through the locking rod hole 9 and cooperates with the locking tongue 17. The bottom housing 31 of the auxiliary lock 3 has a latch hole 32 and a limiting groove 33. The fixing latch 20 at the other end of the steel cable 1 is engaged in the latch hole 32 and is limited by the limiting groove 33. The bottom cover 34 is closed and fixed to the bottom of the bottom housing 31. The two ends of the steel cable 1 are respectively connected to the main lock 2 and the auxiliary lock 3 to form a complete locking structure. One end of the steel cable 1, the locking rod 16, passes through the locking rod hole 9 of the front housing 5 and cooperates with the locking tongue 17 to lock the main lock 2 at both ends; the other end, the fixed latch 20, is engaged with the latch hole 32 of the bottom housing 31 of the auxiliary lock 3, and cooperates with the limiting groove 33 to ensure that the two ends of the steel cable 1 are connected, ensuring the overall locking effect of the lock. The bottom cover 34 is closed and fixed to the bottom of the bottom housing 31 to protect the internal structure of the auxiliary lock 3 and prevent external impurities from entering and affecting the normal operation of the auxiliary lock 3.

[0038] The front housing 5 has an infrared lens hole 6, an infrared lamp hole 7, and a transmitter / receiver lamp hole 36, providing mounting positions for the infrared lens 12, infrared lamp 11, and transmitter / receiver lamp 37, ensuring that the positions of each component correspond after installation and guaranteeing smooth signal transmission. The palm vein module 10 and the control component 13 are fixed inside the front housing 5 by a bracket 14 for assembly and positioning, preventing component displacement from affecting the fitting accuracy. The locking tongue 17 is located in the locking tongue groove 22 for movement guidance. One side of the locking tongue 17 abuts against the first spring 18, and the other end of the first spring 18 is fixed to the inner wall of the front housing 5, providing a reset force for the locking tongue 17 and ensuring that the locking tongue 17 and the locking rod 16 cooperate to achieve reliable locking and unlocking.

[0039] The palm vein module 10 is connected to the infrared camera 12 and infrared lamp 11, enabling palm vein information collection and recognition. After the recognition signal is transmitted to the control component 13, the control component 13 drives the locking tongue 17 to complete the unlocking process, achieving keyless unlocking. The front cover 5 is equipped with a USB charging port 8, which provides additional power to the lock, ensuring continuous operation of all electrical components. Through assembly layout and connection coordination, the components achieve synergy between structural load-bearing and functional implementation, ensuring smooth lock operation, improving stability, and extending service life.

[0040] like Figure 5 , Figure 12 as well as Figure 13 As shown, the front housing 5 is also provided with a lens 4, which is fixedly mounted on the front end face of the front housing 5. The lens 4 has a palm vein transparent recognition hole 38 that corresponds to and matches the infrared lens hole 6 and the infrared lamp hole 7. The lens 4 is pressed and fixed by the front cover 23, which is closed and fixed to the front end of the front housing 5 and has a clearance hole to avoid the lens 4. The lens 4 is fixedly mounted on the front end face of the front housing 5, covering the area of ​​the infrared lens hole 6 and the infrared lamp hole 7 on the front housing 5, forming a protective barrier to prevent external dust and water stains from entering the holes and contacting the infrared lens 12 and the infrared lamp 11, ensuring the normal working environment of the infrared lens 12 and the infrared lamp 11, and reducing the probability of component failure.

[0041] The lens 4 has a transparent palm vein recognition hole 38, which corresponds to and is adapted to the infrared lens hole 6 and the infrared lamp hole 7. This ensures that when the infrared lens 12 collects palm vein information and the infrared lamp 11 emits infrared light, the signal can penetrate the lens 4 and be transmitted smoothly without affecting the recognition accuracy of the palm vein module 10, thus ensuring the stable implementation of the unlocking function.

[0042] The front cover 23 is fixed to the front end of the front housing 5 and the lens 4 is secured by pressing, thus assembling the lens 4 with the front housing 5 and preventing the lens 4 from shifting or falling off. The front cover 23 has clearance holes to avoid the functional area of ​​the lens 4, so as not to interfere with the light transmission and protection function of the lens 4, while enhancing the structural integrity of the front end of the front housing 5 and improving the overall assembly stability of the main lock 2.

[0043] like Figure 2 , Figure 5 as well as Figure 8 As shown, a sliding cover 25 is slidably mounted on the outer side of the front shell 5. Slide rails 29 are provided on both sides of the front shell 5 to cooperate with the sliding cover 25. The inner groove 30 of the sliding cover 25 slides in cooperation with the slide rails 29. A spring arm 35 is provided on the sliding cover 25, which engages with the locking groove 27 of the front shell 5. Several male and female buckles 24 and 26 are correspondingly provided on opposite sides of the sliding cover 25 and the front cover 23 of the front shell 5, and these buckles engage in a locking mechanism. The slide rails 29 on both sides of the front shell 5 slide in cooperation with the inner groove 30 of the sliding cover 25, providing guidance for the movement of the sliding cover 25 and ensuring that the sliding cover 25 opens and closes along a fixed trajectory, preventing deviation or jamming during sliding. The sliding cover 25 can cover the front functional area of ​​the front shell 5, forming physical protection and preventing dust and water stains from contacting components such as the lens 4 and the USB charging port 8, ensuring the normal working environment of each component.

[0044] The spring arm 35 on the sliding cover 25 engages with the locking groove 27 of the front cover 5 to fix the sliding cover 25 in the closed state, preventing the sliding cover 25 from sliding accidentally when not in operation. The male buckle 24 and female buckle 26 on the opposite side of the sliding cover 25 and the front cover 23 engage with each other to further enhance the assembly stability of the sliding cover 25 after it is closed and improve the overall compactness of the lock structure.

[0045] The sliding fit and multiple locking structure work together to make the sliding cover 25 easy to open and close, and securely fixed. When the sliding cover 25 is closed, it is positioned by the spring arm 35 and the male buckle 24 to ensure the effectiveness of protection; when opening, simply release the locking mechanism to slide smoothly without affecting the normal use of the lock, thus achieving a balance between protection and ease of operation.

[0046] The sliding cover 25 has a through hole 28, which corresponds to the fixing hole on the front shell 5. This through hole 28 is used to secure the front shell 5 and the sliding cover 25 together with fasteners. The through hole 28, corresponding to the fixing hole on the front shell 5, provides an assembly channel for the fasteners, thus strengthening the connection between the front shell 5 and the sliding cover 25 and preventing loosening due to sliding friction during long-term use. The reinforced structure keeps the relative position of the sliding cover 25 and the front shell 5 stable, ensuring the effectiveness of the sliding cover 25 in protecting the front end of the front shell 5, while also improving the overall structural rigidity of the lock and reducing the probability of component wobbling.

[0047] like Figure 2 , Figure 3 as well as Figure 14As shown, the locking rod 16 has a locking rod groove 21, and one end of the locking tongue 17 has a locking platform that matches the locking rod groove 21. The locking tongue 17 is locked and limited by engaging with the locking rod groove 21 through the locking platform. A pusher 15 is fixedly connected to one side of the locking tongue 17, and the locking tongue 17 is driven by the drive end of the control component 13. The locking rod groove 21 of the locking rod 16 and the locking platform of the locking tongue 17 are matched and engaged to realize the positioning and limiting of the locking rod 16 and the locking tongue 17, restrict the axial movement of the locking rod 16, ensure the stability of the connection between the steel cable 1 and the main lock 2, and ensure the reliable locking state of the lock.

[0048] The locking tongue 17 is connected to the drive end of the control component 13 via the pusher 15, so that the driving force of the control component 13 can be transmitted to the locking tongue 17, realizing the directional movement of the locking tongue 17, ensuring smooth engagement and disengagement between the locking tongue 17 and the locking bar groove 21, and ensuring the execution of the unlocking and locking process; the engagement limit and the transmission structure work together to make the cooperation between the locking bar 16 and the locking tongue 17 controllable, avoiding misalignment or disengagement during the locking process, while ensuring the execution of control commands and improving the stability of the core locking function of the lock.

[0049] like Figure 2 and Figure 14 As shown, a second spring 19 is provided between the latch 17 and the front housing 5. The second spring 19 is sleeved on the guide shaft of the latch 17, and its two ends abut against the latch 17 and the inner wall of the front housing 5, respectively, to assist the latch 17 in resetting. The second spring 19 is sleeved on the guide shaft of the latch 17 to achieve spring assembly positioning, ensuring that the force of the second spring 19 acts on the latch 17, providing a stable resetting driving force for the latch 17, and ensuring that the latch 17 quickly returns to its initial position after unlocking.

[0050] The two ends of the second spring 19 abut against the latch 17 and the inner wall of the front housing 5, respectively, forming a stable force-bearing structure. This prevents the latch 17 from shifting or jamming during reset, ensuring the locking action is reliable by guaranteeing the engagement between the latch 17 and the locking rod 16. The reset structure creates a closed loop for the latch 17's movement, automatically resetting after unlocking without additional operation, thus improving the continuity of the lock's operation. Simultaneously, it balances the forces acting on the latch 17, reducing frictional wear between the latch 17 and the guide shaft and front housing 5, extending the service life of the components.

[0051] like Figure 2 , Figure 6 as well as Figure 13As shown, a semi-transparent identification hole 39 is also provided on the lens 4. The semi-transparent identification hole 39 is correspondingly set with the transmitting and receiving light hole 36, and a semi-transparent film is attached to the semi-transparent identification hole 39 to optimize the signal transmission of the transmitting and receiving light 37. The semi-transparent identification hole 39 corresponds to the transmitting and receiving light hole 36, providing a directional channel for the signal transmission of the transmitting and receiving light 37, avoiding signal diffusion, ensuring the direction of signal transmission, and improving signal transmission efficiency. The semi-transparent film attached to the semi-transparent identification hole 39 can filter external stray light interference, reduce the influence of ambient light on the signal of the transmitting and receiving light 37, ensure the accuracy of signal recognition, and at the same time prevent dust and moisture from contacting the transmitting and receiving light 37, forming component protection. The semi-transparent identification hole 39 and the semi-transparent film work together to achieve the dual functions of protection and signal optimization without hindering signal transmission, ensuring the stable operation of the transmitting and receiving light 37, ensuring its smooth cooperation with the palm vein module 10 and the control component 13, and improving the overall functional reliability of the lock.

[0052] like Figures 6 to 7 As shown, the front shell 5 has a card-swiping area, within which a card-swiping antenna is embedded. The card-swiping antenna is electrically connected to the control component 13. The embedded mounting of the card-swiping antenna in the card-swiping area of ​​the front shell 5 achieves a concealed component layout, reducing damage to the antenna from external collisions and friction. It also makes the surface of the front shell 5 neat and improves the compactness of the assembly structure. The electrical connection between the card-swiping antenna and the control component 13 allows the transmission of the collected card-swiping signal to the control component 13, triggering the execution of the unlocking command and realizing the card-swiping unlocking function. This expands the unlocking methods of the lock and adapts to different usage needs. The embedded mounting and electrical connection structure work together to ensure stable signal transmission from the card-swiping antenna and timely unlocking response. The assembly structure enhances component protection, while the electrical connection ensures functional implementation; together, they improve the ease of use and operational reliability of the lock.

[0053] like Figures 7 to 12 As shown, the bracket 14 is fixed to the inside of the front shell 5 by bolts, and the bracket 14 has multiple assembly holes. The palm vein module 10 and the control component 13 are respectively fixed to the corresponding assembly holes by screws. The bracket 14 is fixed to the inside of the front shell 5 by bolts, realizing the connection between the bracket 14 and the front shell 5, ensuring the assembly position of the bracket 14, avoiding displacement during long-term use, and providing a stable foundation for the assembly of subsequent components. The assembly holes of the bracket 14 provide assembly stations for the palm vein module 10 and the control component 13. The screw fixing realizes the positioning and installation of the two components, ensuring that the relative positions of the two components are fixed, and ensuring the accuracy of signal transmission and command execution. The layered fixing structure makes the internal component layout of the front shell 5 neat, reduces interference between components, and improves the overall structural stability, ensuring smooth cooperation between the palm vein module 10, the control component 13 and other components, and ensuring the stable operation of the lock function.

[0054] The steel cable 1, locking rod 16, and fixed lock buckle 20 are all fixed by crimping. Both the locking rod 16 and the fixed lock buckle 20 are equipped with anti-detachment protrusions, which are pressed tightly against the inner core of the steel cable 1 to prevent it from falling off. The crimping fixation forms an integrated connection between the steel cable 1, the locking rod 16, and the fixed lock buckle 20, improving the structural strength of the connection and ensuring even load distribution under stress, avoiding localized stress concentration that could lead to connection failure. The anti-detachment protrusions, pressed tightly against the inner core of the steel cable 1, increase contact friction, forming a double anti-detachment guarantee, restricting the axial movement of the steel cable 1, and preventing it from falling off the locking rod 16 and the fixed lock buckle 20. The connection structure ensures reliable engagement between the two ends of the steel cable 1 and the main lock 2 and auxiliary lock 3, ensuring a stable locking state and preventing the normal functioning of the lock from being affected by loosening or falling off the steel cable 1.

[0055] The above description is merely an illustrative embodiment of this utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of this utility model shall fall within the scope of protection of this utility model.

Claims

1. A smart palm vein refrigerator lock, comprising a steel cable (1), a main lock (2) and a secondary lock (3), wherein both ends of the steel cable (1) are respectively connected to the main lock (2) and the secondary lock (3), characterized in that: The main lock (2) includes a front shell (5), a palm vein module (10), an infrared lamp (11), an infrared lens (12), a control component (13), a latch (17), and a first spring (18). The front shell (5) has an infrared lens hole (6), an infrared lamp hole (7), a transmitter / receiver lamp hole (36), a USB charging port (8), and a lock bar hole (9). The infrared lens (12), the infrared lamp (11), and the transmitter / receiver lamp (37) are respectively embedded in the corresponding holes. The palm vein module (10) and the control component (13) are fixed inside the front shell (5) by a bracket (14) and have a latch groove (22). The latch (17) is located in the latch groove (22). (10) is connected to the infrared lens (12) and the infrared lamp (11), and the control component (13) is connected to the latch (17); one side of the latch (17) abuts against the first spring (18), and the other end of the first spring (18) is fixed to the inner wall of the front shell (5); the locking rod (16) at one end of the steel cable (1) passes through the locking rod hole (9) and cooperates with the latch (17); the bottom shell (31) of the auxiliary lock (3) is provided with a buckle hole (32) and a limiting groove (33), the fixing buckle (20) at the other end of the steel cable (1) is fitted into the buckle hole (32) and cooperates with the limiting groove (33) for limiting, and the bottom cover (34) is closed and fixed to the bottom of the bottom shell (31).

2. The intelligent palm vein refrigerator lock according to claim 1, characterized in that: The front shell (5) is also provided with a lens (4). The lens (4) is fixedly mounted on the front end face of the front shell (5). The lens (4) is provided with a palm vein transparent recognition hole (38) that corresponds to and matches the infrared lens hole (6) and the infrared lamp hole (7). The lens (4) is pressed and fixed by the front cover (23). The front cover (23) is closed and fixed to the front end of the front shell (5) and is provided with a clearance hole to avoid the lens (4).

3. The intelligent palm vein refrigerator lock according to claim 2, characterized in that: The front shell (5) is slidably fitted with a sliding cover (25) on the outside. The front shell (5) has slide rails (29) on both sides that cooperate with the sliding cover (25). The slide groove (30) on the inner side of the sliding cover (25) is slidably engaged with the slide rail (29). The sliding cover (25) is provided with a spring arm (35) that engages with the locking groove (27) of the front shell (5). The sliding cover (25) and the front cover (23) of the front shell (5) are provided with a number of male buckles (24) and female buckles (26) on opposite sides. The male buckles (24) and the female buckles (26) engage with each other.

4. The intelligent palm vein refrigerator lock according to claim 3, characterized in that: The sliding cover (25) has a through hole (28), which is corresponding to the fixing hole on the front shell (5) and is used to cooperate with fasteners to reinforce and fix the front shell (5) and the sliding cover (25).

5. The intelligent palm vein refrigerator lock according to claim 1, characterized in that: The locking rod (16) has a locking rod groove (21), and one end of the locking tongue (17) has a locking platform that is adapted to the locking rod groove (21). The locking tongue (17) is locked and limited by the locking platform and the locking rod groove (21). A pusher (15) is fixedly connected to one side of the locking tongue (17), and the locking tongue (17) is connected to the drive end of the control component (13).

6. The intelligent palm vein refrigerator lock according to claim 5, characterized in that: A second spring (19) is provided between the latch (17) and the front shell (5). The second spring (19) is sleeved on the guide shaft of the latch (17), and the two ends of the second spring (19) abut against the latch (17) and the inner wall of the front shell (5) respectively, to assist the latch (17) in resetting.

7. The intelligent palm vein refrigerator lock according to claim 2, characterized in that: The lens (4) is also provided with a semi-transparent identification hole (39), which is correspondingly provided with the transmitting and receiving lamp hole (36), and a semi-transparent film is attached to the semi-transparent identification hole (39) to optimize the signal transmission of the transmitting and receiving lamp (37).

8. The intelligent palm vein refrigerator lock according to claim 1, characterized in that: The front shell (5) is provided with a card swiping area, and a card swiping antenna is embedded in the card swiping area. The card swiping antenna is electrically connected to the control component (13).

9. The intelligent palm vein refrigerator lock according to claim 1, characterized in that: The bracket (14) is fixed inside the front shell (5) by bolts, and the bracket (14) has multiple assembly holes. The palm vein module (10) and the control component (13) are respectively fixed in the corresponding assembly holes by screws.

10. The intelligent palm vein refrigerator lock according to claim 9, characterized in that: The steel cable (1), the locking rod (16) and the fixing buckle (20) are all fixed by crimping. The locking rod (16) and the fixing buckle (20) are provided with anti-detachment protrusions. The anti-detachment protrusions are pressed and engaged with the inner core of the steel cable (1) to prevent the steel cable (1) from falling off.

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