Built-in electronic lock
By incorporating the PCB board and button module into the built-in electronic lock design, and using bolt connections and quick-drying adhesive film wrapping, the problem of insufficient security and explosion-proof performance of existing electronic locks is solved, achieving higher security and functional expansion.
Patent Information
- Application Number
- CN202422721084.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2034-11-08
AI Technical Summary
The external input board of existing electronic locks results in poor security performance, limited functional expansion of the control board, high manufacturing difficulty, cumbersome connection, and insufficient explosion-proof performance.
The design incorporates a built-in electronic lock with a triple structure consisting of a front cover, an internal plate, and a rear cover. The PCB board and button module are built-in and fixed by bolts. The design also includes spikes and quick-drying adhesive film to enhance safety and explosion-proof performance.
It improves the security and functional expansion capabilities of electronic locks, reduces processing difficulty, enhances connection reliability, and prevents damage by criminals through the spread of quick-drying adhesive film, thereby improving explosion-proof performance.
Smart Images
Figure CN223908008U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a safe electronic lock technical field, more specifically, it relates to built-in electronic lock. BACKGROUND
[0002] Electronic lock is the important component part of safe theftproof module, and it controls the closing of mechanical switch through password input to control circuit or chip work, thereby controls the task of opening and locking, and the existing electronic lock is generally composed of lock body, lock tongue, control board, input board, power supply etc., power supply carries out power supply, and the password is keyed in input board and is transmitted to control board to carry out identification, and control board decides lock head to pop up or lock, and lock body is used to accommodate various components.
[0003] The existing electronic lock generally sets up input board and control board at the outer end surface of lock body, or sets up input board at the outer end surface of lock body and sets up control board in the inside of lock body, and both are connected through opening circuit. This leads to the following problems: because input board is external, and the input board adopts film type board piece, the overall safety performance is poor; the existing structure has requirements to the shape, size, thickness and other dimensions of control board, greatly limits the function expansion of control board, and the precision requirements of processing difficulty and circuit laying are higher; the single components of the existing electronic lock need to be glued and bonded, which is more cumbersome. Therefore, an electronic lock with built-in input board needs to be designed, but the problem of decline of explosion-proof performance of the electronic lock caused by the change of structure also needs to be solved. UTILITY MODEL CONTENTS
[0004] In view of the defects in the prior art, the utility model aims at providing built-in electronic lock to solve one or more of the above problems.
[0005] To achieve the above object, the utility model provides the following technical scheme:
[0006] The built-in electronic lock comprises lock front cover, built-in plate and lock rear cover connected in sequence, the front surface of the built-in plate is provided with erecting protrusion, the erecting protrusion is provided with PCB plate, and the PCB plate is tightly pressed in the inside of the lock front cover by the built-in plate;
[0007] At least two through function grooves are formed in the built-in plate;
[0008] The back surface of the built-in plate is provided with quick-drying adhesive film bag, and the quick-drying adhesive film bag is located in the area between the function grooves on the built-in plate;
[0009] The back surface of the PCB plate is provided with at least two parallel fixing seats, and each fixing seat passes through the corresponding function groove;
[0010] Each of the fixed seat is rotatably connected with a rotating member, and different rotating members are fixedly aligned between the built-in plate and the rear cover of the lock through pin holes and pin shafts.
[0011] Each of the rotating members is provided with a lancet, and all the lancets are suspended from the back of the quick-drying adhesive film.
[0012] Further, a window is formed on the front surface of the front cover of the lock, and a button module is integrated on the PCB and aligned with the window.
[0013] Further, a plurality of lock holes are arranged on the inside of the front cover of the lock and face away from the opening in a uniform manner along a ring shape.
[0014] An arc-shaped notch is formed on the circumference of the PCB corresponding to the lock hole;
[0015] Uniformly distributed fixing holes are formed on the front surface of the built-in plate along the edge thereof, and the fixing holes are arranged corresponding to the lock holes.
[0016] The rear end of the front cover of the lock is bolted to the built-in plate.
[0017] Further, the inner ring of the back surface of the built-in plate is provided with uniformly distributed arch bridge protrusions.
[0018] A plurality of clamping groove slots are uniformly distributed and formed on the rear end of the rear cover of the lock along the edge thereof.
[0019] A plurality of clamping seat and clamping strip are arranged on the front surface of the rear cover of the lock corresponding to the clamping groove slots, the clamping seat is an outer package half-open structure, the clamping strip is a tangentially arranged strip-shaped elastic member, and the clamping seat and the clamping strip are integrally formed with the front surface of the rear cover of the lock.
[0020] Further, an adjusting slot is arranged on the rear cover of the lock, and the adjusting slot and all the clamping groove slots are uniformly distributed on the rear cover of the lock along a ring shape.
[0021] Further, the adjusting slot penetrates the front and back surfaces and the end surface of the rear cover of the lock.
[0022] An integrally formed adjusting strip is arranged on the rear cover of the lock, the adjusting strip is arranged corresponding to the adjusting slot, the adjusting strip is a folded segment elastic long condition, and a clamping protrusion is arranged at the folded corner;
[0023] The clamping protrusion, the clamping seat and the clamping strip are all located on the rotating route of the arch bridge protrusion on the inner ring of the built-in plate.
[0024] Further, the adjusting slot is provided with a corresponding clamping seat, and a reinforcing rib platform is arranged between the root of the adjusting strip and the rear cover of the lock.
[0025] The folded segments of the adjusting strip are arranged in an up-down staggered manner.
[0026] The end of the adjusting strip is sunken and provided with an end strip, which extends out of the end gap of the adjusting slot.
[0027] Further, the built-in plate is connected with the lock back cover through the clamp base, the clamp strip, the adjusting strip, the clamp protrusion and the arch bridge protrusion.
[0028] In summary, the utility model has the following beneficial effects:
[0029] 1. By the design of the built-in electronic lock panel, the PCB and the key module are stored in the lock front cover, which is safer. The built-in PCB is no longer constrained by structure and size, and can better expand functions, with lower processing difficulty and circuit laying difficulty, which is conducive to cost reduction and efficiency improvement. The adhesive mode is replaced by the bolt connection mode, and the connection is more reliable;
[0030] 2. By means of the gap and the lock hole, the compression state of the PCB is fixed, and the PCB pressed tightly in the lock front cover is prevented from rotating and deviating;
[0031] 3. The clamp state is released by adjusting the adjusting strip, and the further relative rotation of the lock cover in the clamp state is limited by the clamp base;
[0032] 4. The needle is arranged on the rotatable part penetrating the functional slot of the built-in plate, and the quick-drying adhesive film bag is arranged on the back of the built-in plate. When the front of the PCB is damaged by force, the needle will pierce the quick-drying adhesive film bag, and the quick-drying adhesive will spread in the area between the built-in plate and the lock back cover, preventing the criminal from directly contacting the safe door lock main body. BRIEF DESCRIPTION OF DRAWINGS
[0033] Figure 1 The utility model provides a kind of embodiment of stereoscopic structure schematic view for the utility model;
[0034] Figure 2 The utility model provides a kind of back surface structure schematic view of PCB in an embodiment of the utility model;
[0035] Figure 3 For Figure 2 Enlarged schematic view in A place in the middle;
[0036] Figure 4 The utility model provides a kind of front surface structure schematic view of PCB in an embodiment of the utility model;
[0037] Figure 5 The utility model provides a kind of back surface structure schematic view of lock front cover in an embodiment of the utility model;
[0038] Figure 6A schematic diagram of the front structure of the lock back cover in one embodiment of this utility model;
[0039] Figure 7 A schematic diagram of the front structure of the built-in plate in one embodiment of this utility model;
[0040] Figure 8 This is a schematic diagram of the back structure of the built-in plate in one embodiment of the present invention.
[0041] In the diagram: 1. Lock front cover; 2. Lock back cover; 3. Internal board; 4. PCB board; 5. Button module; 6. Lock hole; 7. Clamp slot; 8. Clamp seat; 9. Clamp strip; 10. Adjustment slot; 11. Adjustment strip; 12. Clamp protrusion; 13. Arch bridge protrusion; 14. Reinforcing rib platform; 15. End lever; 16. Fixing hole; 17. Support protrusion; 18. Functional slot; 19. Quick-drying adhesive film pack; 20. Hook; 21. Fixing seat; 22. Rotating component; 23. Needle. Detailed Implementation
[0042] Example:
[0043] The following is in conjunction with the appendix Figures 1-8 The present invention will be described in further detail below.
[0044] Built-in electronic locks, such as Figure 1 As shown, the main body of the electronic lock features a triple-layered internal structure, consisting of a front cover 1, a PCB board 4, an internal plate 3, and a rear cover 2. After installation, the electronic lock connects to the main lock body of the safe. The PCB board 4 connects to the control circuitry of the main lock body, operating the opening and locking of the safe. The main structure of the electronic lock connects to and accommodates parts of the door lock structure as needed. The front cover 1, PCB board 4, internal plate 3, and rear cover 2 are connected using a non-adhesive method. The PCB board 4 is tightly pressed between the front cover 1 and the internal plate 3, which are fixed by bolts. The internal plate 3 and the rear cover 2 are aligned and rotated together using clamps, ultimately forming a complete front-end structure of the electronic lock. A button module 5 is integrated on the PCB board 4. By embedding the PCB board 4 and the button module 5 entirely within the electronic lock, the overall integrity and security are enhanced.
[0045] like Figure 5 As shown, the front cover 1 is a circular frame structure. Inside the front cover 1 are three evenly distributed lock holes 6 arranged in a ring. The lock holes 6 open towards the back, corresponding to the bolt connection structure between the subsequent built-in plate 3 and the front cover 1. A window is provided on the front of the front cover 1, corresponding to the built-in PCB board 4, facilitating external operation. Therefore, the button module 5 integrated on the PCB board 4 must be aligned with the window. To achieve this, as... Figure 4As shown, the edge of the PCB board 4 is provided with arc-shaped notches corresponding to the three lock holes 6, which plays a role in positioning and installation, and prevents the PCB board 4 from rotating and deviating after being completely installed.
[0046] As shown, Figure 7 As shown, the inner ring of the back of the built-in plate 3 is provided with three evenly distributed arch bridge protrusions 13, and the front surface of the built-in plate 3 is provided with corresponding fixing holes 16 corresponding to the three lock holes 6, which are necessarily evenly distributed along the ring on the front surface of the built-in plate 3. The fixing holes 16 of the built-in plate 3 are in a counterbore structure, and the fixing holes 16 of the built-in plate 3 are aligned with the lock holes 6 of the lock front cover 1, and the butt joint of the two key components is completed by means of bolts. The front surface of the built-in plate 3 is provided with two through functional grooves 18 windows, which are used for reserving circuit connection of the subsequent PCB board 4, and the windows and the edge of the front surface of the built-in plate 3 are provided with different shapes and sizes of erection protrusions 17, and the PCB board 4 abuts against the erection protrusions 17.
[0047] As shown, Figure 6 As shown, the lock rear cover 2 is provided with two through clamp grooves 7 and an adjustment slot 10. The three groove bodies are evenly distributed on the lock rear cover 2. The adjustment slot 10 is different from the clamp groove 7 in that the clamp groove 7 is a fan-shaped groove body, and the adjustment slot 10 is a folded section type end edge through groove. The front surface of the lock rear cover 2 is provided with a clamp seat 8 and a clamp strip 9 corresponding to the two clamp grooves 7, which are integrally formed. The clamp seat 8 and the clamp strip 9 are respectively arranged at both ends of the groove body, the clamp seat 8 is a half open structure, and the clamp strip 9 is a strip-shaped elastic member, which is arranged along the tangential direction of the inner circle of the clamp groove 7 and can be deformed by the arch bridge protrusion 13 of the built-in plate 3. The front surface of the lock rear cover 2 is provided with a special and integrally formed adjustment strip 11 corresponding to the adjustment slot 10, and the root of the adjustment strip 11 is connected to the lock rear cover 2 through a reinforcing rib platform 14. The non-connected end face of the reinforcing rib platform 14 is a slope face, which conforms to the design of structural mechanics. The adjustment slot 10 is also a folded section type structure, and a clamp seat 8 is arranged at the corner position of the adjustment slot 10. The three clamp seats 8 are uniformly arranged in terms of direction and deviation, which are used for clamping the arch bridge protrusion 13 on the built-in plate 3 in the later stage. The adjustment strip 11 is a folded section elastic long condition, and the end face of the corner is provided with a clamp protrusion 12. The two folded sections of the adjustment strip 11 are arranged in an upper and lower staggered manner, and the end of the adjustment strip 11 is sunken and provided with an end tab 15 extending out of the end gap position of the adjustment slot 10, which facilitates the release and reverse rotation of the built-in plate 3. The clamp protrusion 12 of the adjustment strip 11, the three clamp seats 8 and the two clamp strips 9 are all in the rotation movement route of the arch bridge protrusion 13 on the built-in plate 3, that is, it is necessary to ensure that the three arch bridge protrusions 13 can first pass through the clamp protrusion 12 and the clamp strip 9, so that the three arch bridge protrusions 13 can continue to rotate after the elastic deformation of the clamp protrusion 12 and the clamp strip 9, and be clamped into the clamp seat 8.
[0048] Put the three arc-shaped notches of the PCB board 4 into the lock hole 6 of the lock front cover 1, align the key module 5 with the window of the lock front cover 1. Align the functional groove 18 of the built-in board 3 with the corresponding area on the back of the PCB board 4, complete the pressing, and at the same time, align the fixing hole 16 of the built-in board 3 and the lock hole 6 of the lock front cover 1, select the bolt to complete the docking of the built-in board 3 and the lock front cover 1, and the PCB board 4 is tightly pressed between the built-in board 3 and the lock front cover 1 and cannot be rotated. Align the clamp groove 7 and the adjusting slot 10 of the lock rear cover 2 to the vicinity of the arch bridge protrusion 13 of the built-in board 3, ensure that the lock rear cover 2 can be attached to the built-in board 3, and rotate, when the arch bridge protrusion 13 contacts the clamp strip 9 and the adjusting strip 11, continue to rotate, and the clamp strip 9 and the adjusting strip 11 deform and allow the arch bridge protrusion 13 to pass through and reset, the arch bridge protrusion 13 is clamped between the clamp seat 8 and the clamp strip 9 or the adjusting strip 11, and it is difficult to separate, realizing the docking of the built-in board 3 and the lock rear cover 2. The corresponding circuit is not described, and the door lock main body of the safe is docked and powered on, and the electronic lock is normally used.
[0049] When the electronic lock needs to be disassembled, separate the electronic lock and the safe, reverse the adjusting strip 11 and reverse the lock rear cover 2, help the built-in board 3 arch bridge protrusion 13 to be more smoothly separated. After separating the lock rear cover 2, remove the bolt in the fixing hole 16 of the built-in board 3, and separate the lock front cover 1.
[0050] In addition, considering that the three built-in structures of the electronic lock are compared with the existing electronic lock lock head structure, although the PCB board 4 and the key module 5 are built-in, the built-in board 3 is increased for fixation, but also removes the support area of the regular front cover, that is, the part of the lock front cover 1 which is now opened as a window. This part was originally a hole plate, the PCB board 4 was glued to the outer end of the front cover, and the wire harness was put into the electronic lock through the eye, this part of the plate not only supports the PCB board 4, but also plays a certain role in preventing external violence from entering the lock body. The improved PCB board 4 actually replaces this plate area and also plays a corresponding role, but the difference is that the explosion-proof performance of the PCB board 4 is general, which gives the lawbreakers a chance.
[0051] Therefore, as shown in Figure 8 , a corresponding profile of quick-drying adhesive film package 19 is arranged in the area between the two functional grooves 18 on the back of the built-in board 3. At the same time, two hooks 20 are arranged near this area of the built-in board 3, which are used to hook and fix the wire harness, prevent the wire harness and other components from accidentally squeezing the quick-drying adhesive film package 19, and regulate and move the wire harness away from the quick-drying adhesive film package 19. As shown in Figure 2 and Figure 3As shown, two sets of fixing seats 21 are arranged behind the PCB 4 by welding or bonding, two fixing seats 21 are arranged respectively corresponding to two functional grooves 18, and the two fixing seats 21 are parallel, so as to ensure that other components are successfully docked subsequently. The center of the end of the two fixing seats 21 is provided with a groove, and a rotatable rotating piece 22 is arranged in the groove, the two rotating pieces 22 are always parallel and the rotating directions are consistent. Boltholes are horizontally arranged on the two rotating pieces 22, because the two fixing seats 21 are parallel, so the two bolt holes can be aligned and matched, and the insertion of the bolt can realize the fixation of the two rotating pieces 22. The bottom of the rotating piece 22, that is, the side of the setting plate 3 opposite to the side of the quick-drying adhesive film bag 19 is provided with a half-cone-shaped thorn needle 23, after the two rotating pieces 22 are fixed and aligned, the two thorn needles 23 can be attached or substantially form a complete thorn cone structure. The thorn needle 23 is suspended on the quick-drying adhesive film bag 19 on the back of the setting plate 3 after the two rotating pieces 22 are aligned and fixed.
[0052] Firstly, the structure of the fixing seat 21, the rotating piece 22 and the thorn needle 23 can only be removed from the back after the electronic lock is removed, that is, the lock back cover 2 is first unscrewed, and then the two rotating pieces 22 are separated in the reverse direction by removing the bolt. The forced blasting or disassembly mode from the front of the electronic lock is wrong, as long as the PCB 4 is taken out or broken and falls off, an offset amount away from the front of the electronic lock is generated, the thorn needle 23 will inevitably pierce the quick-drying adhesive film bag 19, and the liquid quick-drying adhesive in the quick-drying adhesive film bag 19 will rapidly spread and solidify on the built-in plate 3, the PCB 4 or the lock back cover 2, and even the lock front cover 1, thereby hindering the separation between components, and the electronic lock components are sealed by extreme means, thereby improving the explosion-proof performance. The number of quick-drying adhesive film bags can be appropriately increased and dispersedly arranged near the two functional grooves 18, the number of related thorn needles 23, rotating pieces 22 and fixing seats 21 is correspondingly increased, and a suitable number of hooks 20 are additionally provided, so as to further improve the coverage rate of the spread of the quick-drying adhesive.
[0053] It should be noted that the specific embodiments are only an explanation of the present application, and are not a limitation of the present application, and those skilled in the art can make non-creative modifications to the embodiments according to the needs after reading the specification, but as long as the modifications are within the scope of the claims of the present application, they are protected by the patent law.
Claims
1. A built-in electronic lock, characterized in that: The lock includes a front cover (1), an inner plate (3) and a rear cover (2) connected in sequence. The front of the inner plate (3) is provided with a mounting protrusion (17), and a PCB board (4) is provided on the mounting protrusion (17). The PCB board (4) is pressed tightly inside the front cover (1) by the inner plate (3). The built-in plate (3) has at least two through functional slots (18); The back of the built-in plate (3) is provided with a quick-drying adhesive film pack (19), which is located in the area between the functional slots (18) on the built-in plate (3); The PCB board (4) has at least two parallel mounting bases (21) on its back side, and each mounting base (21) passes through the corresponding functional slot (18); Each of the fixed bases (21) is rotatably connected to a rotating component (22), and the different rotating components (22) are fixedly aligned between the built-in plate (3) and the lock back cover (2) by means of pin holes and pin shafts; Each of the rotating parts (22) is provided with a needle (23), and all the needles (23) are suspended on the back of the quick-drying adhesive film pack (19).
2. The built-in electronic lock according to claim 1, characterized in that: The front of the lock cover (1) has a window, and the button module (5) is integrated on the PCB board (4) and aligned with the window.
3. The built-in electronic lock according to claim 1, characterized in that: The lock front cover (1) has several lock holes (6) that are evenly distributed in a ring and open in opposite directions inside; An arc-shaped notch is provided on the circumference of the PCB board (4) corresponding to the lock hole (6); The built-in plate (3) has evenly distributed fixing holes (16) along its edge on the front side, and the fixing holes (16) are provided corresponding to the lock holes (6); The rear end of the lock front cover (1) is bolted to the built-in plate (3).
4. The built-in electronic lock according to claim 1, characterized in that: The inner ring on the reverse side of the built-in plate (3) is provided with evenly distributed arch bridge protrusions (13); The rear end of the lock cover (2) is provided with several through-groove clamp grooves (7) evenly distributed along its edge; The front of the lock back cover (2) is provided with several matching clamp seats (8) and clamp strips (9) corresponding to the clamp grooves (7). The clamp seat (8) is an externally enclosed semi-open structure, and the clamp strip (9) is a tangentially arranged strip-shaped elastic element. The clamp seat (8) and the clamp strip (9) are integrally formed with the front of the lock back cover (2).
5. The built-in electronic lock according to claim 4, characterized in that: The lock back cover (2) is also provided with an adjustment groove (10), and the adjustment groove (10) and all of the clamp grooves (7) are evenly distributed in a ring on the lock back cover (2).
6. The built-in electronic lock according to claim 5, characterized in that: The adjustment groove (10) passes through the front, back and end faces of the lock cover (2); The lock back cover (2) is provided with an integrally formed adjustment bar (11), the adjustment bar (11) is provided corresponding to the adjustment groove (10), the adjustment bar (11) is a folded elastic length condition and a clamp protrusion (12) is provided at the fold. The clamp protrusion (12), the clamp seat (8), and the clamp strip (9) are all located on the rotation path of the arch bridge protrusion (13) on the inner ring of the built-in plate (3).
7. The built-in electronic lock according to claim 6, characterized in that: The adjusting groove (10) is provided with a corresponding clamp seat (8), and a reinforcing rib platform (14) is provided between the root of the adjusting bar (11) and the lock cover (2); The folds of the adjusting lever (11) are staggered vertically; The end of the adjusting bar (11) is recessed and has an end paddle (15), which extends out of the end notch of the adjusting groove (10).
8. The built-in electronic lock according to claim 7, characterized in that: The built-in plate (3) and the lock back cover (2) are connected by clamps through the clamp seat (8), the clamp strip (9), the adjusting lever (11), the clamp protrusion (12) and the arch bridge protrusion (13).