Coded lock bottom plate

Abstract

The utility model discloses a coded lock bottom plate which comprises a groove, a guide, a clamping jaw and a bottom plate flanging structure, the groove is arranged between the clamping jaw and the bottom plate flanging structure, and the guide is connected with a motor support and a lock head support in a clamping mode. According to the utility model, the circuit board is placed in the clamping jaws, and the installation can be completed by gluing the three clamping jaws without riveting or welding installation, so that the circuit board is safer and more reliable and is not easy to loosen; meanwhile, due to the design of the flanging structure, a thief is prevented from hooking a line by using a hook tool to damage the line when damaging the lock, and the safety is higher.

Description

Technical Field

[0001] The utility model belongs to the field of safe combination locks, and in particular relates to a combination lock bottom plate. Background Art

[0002] In locks used in safes, entering the correct password or fingerprint from outside the safe to open the safe is a very common way to unlock the safe. Therefore, the safety performance design of the lock base is particularly important. It should not only have higher safety performance to protect customers' personal belongings, but also optimize the production process to improve production efficiency and reduce production costs.

[0003] In the prior art, the base plate of the lock generally uses welded rivets as a guide. The installation of the circuit board requires reserved threaded holes, and the circuit board is fixed by installing two or four screws. The display screen is installed by opening a hole of the same area on the door leaf and then fixing it with screws. There are no safety protection measures for the threading holes and the fingerprint sensor installation area. A lock plate needs to go through multiple different processes. Secondly, the guide of the riveting process will be loose during installation, and the installation process is time-consuming; the welding of the installation column of the circuit board and the subsequent installation are also time-consuming. At the same time, because there is not enough space for the installation of the display screen, a large hole is opened on the door leaf to leave space, resulting in no guarantee of safety and reduced aesthetics. In addition, some important threading installation holes have no protection, which provides thieves with the possibility of hooking the wires and damaging the lines, thereby reducing the safety performance of the lock. Summary of the invention

[0004] Purpose of the invention: In order to solve the above technical problems, the utility model aims to provide a combination lock base plate, which can improve the safety performance of the lock while reducing the installation time and production time.

[0005] Technical solution: In order to achieve the above-mentioned purpose, the combination lock base plate described in the utility model includes a groove, a guide, a claw, and a base plate flange structure. The groove is arranged between the claw and the base plate flange structure, and the guide is clamped with the motor bracket and the lock bracket.

[0006] Furthermore, the groove (1) is a display screen fixing frame that is stretched downward and has a length of 60-65 mm and a width of 17-21 mm.

[0007] Preferably, the groove (1) is a display screen fixing frame stretched upwards with a length of about 65 mm and a width of 21 mm.

[0008] Furthermore, the number of guides (2) is 4 to 5.

[0009] Preferably, the number of guides (2) is 4.

[0010] Furthermore, the guide (2) is a T-shaped fixed guide formed by 90° punching and bending and a special-shaped fixed guide formed by 90° punching and bending.

[0011] Preferably, the guides (2) are three T-shaped fixed guides formed by 90° punching and bending and one special-shaped fixed guide formed by 90° punching and bending.

[0012] Furthermore, the clamping claws (3) are three square fixed clamping claws formed by 90° punching and bending and having notches.

[0013] Furthermore, the bottom plate flange structures (4) are provided with 5 to 7 structures.

[0014] Furthermore, the bottom plate flange structure (4) is a fixed square flange formed by 90° punching and bending, which plays a role in preventing the wire from being snagged.

[0015] Furthermore, the combination lock bottom plate is integrally formed by stamping and stretching.

[0016] Beneficial effects: Compared with the prior art, the utility model has the following significant advantages:

[0017] The utility model puts the circuit board into the claws, and the installation can be completed by applying glue on the three claws. There is no need for riveting or welding installation, which is safer, more reliable and not easy to loosen. Moreover, the guide is directly formed by stretching and bending the sheet metal to form a fixed guide. The one-time stamping molding technology is adopted, which has high strength and high efficiency. The ingenious sheet metal stretching process solves the installation space of the display screen while taking into account the safety. At the same time, the design of the bottom plate flange structure prevents thieves from using hook-like tools to hook the wire and damage the circuit when destroying the lock, which is more secure.

[0018] The lock bottom plate of the utility model is applied to the safe combination lock, so that the safety is improved by 40%, and the production efficiency is improved by 10 times. The production efficiency was 500 sets per day before, and now it is 5000 sets per day. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 A schematic diagram of the groove structure of the display screen fixing frame that is stretched upward and has a length of 65 mm and a width of 21 mm;

[0021] Figure 3 Schematic diagrams of the structures of three T-shaped fixed guides formed by 90° punching and bending and one special-shaped fixed guide formed by 90° punching and bending;

[0022] Figure 4 It is a schematic diagram of the structure of three square fixed claws formed by 90° punching and bending and having notches;

[0023] Figure 5 It is a fixed square flange structure formed by 90° punching and bending; DETAILED DESCRIPTION

[0024] The technical solution of the utility model is further described below in conjunction with the accompanying drawings.

[0025] like Figure 1-4 As shown, the lock bottom plate of the utility model is composed of a groove 1, a guide 2, a claw 3, and a bottom plate flanging structure 4. Through the stretching and extension technology of the steel plate, a groove 1 with a length of 65mm and a width of 21mm is stretched out on the bottom plate of the lock. The groove 1 can safely and firmly fix the display screen of the safe combination lock without using any screws. The motor bracket 5 and the lock bracket 6 are respectively clamped on the fixed guide 2 of the lock bottom plate. When the motor receives a signal, the rotation of the motor will drive the lock structure to slide smoothly left and right to achieve the unlocking or locking function. The guide 2 is a T-shaped fixed guide design formed by three 90° punching and bending and one 90° punching and bending. This design enables the guide 2 to be effectively and firmly clamped in the slide grooves of the motor bracket 5 and the lock bracket 6, so that the motor and the lock structure can slide more smoothly and firmly. The circuit board is directly stuck in the groove of the claw 3. The claw 3 is a square fixed structure with three 90° bends and notches. The circuit board is fixed on the groove of the claw 3 by dripping hot melt glue. The motor line and the door panel button are connected to the circuit board respectively. After the user enters the correct password or fingerprint on the button, the button will send a signal to the circuit board, and then the circuit board will send a signal to the motor to rotate the motor, thereby driving the lock structure to retract inward, and then the lock is in the unlocked state. On the contrary, the lock will extend outward and the lock is in the locked state. The circuit board is directly stuck in the groove of the claw 3, and the circuit board can be installed and fixed by applying glue on the three claws. Therefore, this design does not require riveting or welding technology to install and fix the circuit board, which is safer, more reliable and not easy to loosen. The safe connection of the circuits between the components in the safe electronic fingerprint lock is particularly important, so the bottom plate of the lock specifically stamps out the bottom plate flange structure 4, so that each line has a flange plate protection at the opening position, which can ensure that the line will not be damaged from the outside of the lock. In order to prevent the lock from being unable to be unlocked by a password or fingerprint, the lock is provided with an emergency key. By inserting and turning the mechanical key from the outside, the connecting rod structure 7 is driven to pull the motor structure to drive the lock structure to extend and retract to achieve the unlocking and locking functions.

Claims

1. A combination lock base plate, characterized in that: The combination lock bottom plate comprises a groove (1), a guide (2), a clamping claw (3), and a bottom plate flange structure (4); the groove (1) is arranged between the clamping claw (3) and the bottom plate flange structure (4); and the guide (2) is clamped with a motor bracket (5) and a lock bracket (6).

2. The combination lock base plate according to claim 1, characterized in that: The groove (1) is a display screen fixing frame that is stretched downward and has a length of 60-65 mm and a width of 17-21 mm.

3. The combination lock base plate according to claim 1, characterized in that: There are 4 to 5 guides (2).

4. The combination lock base plate according to claim 3, characterized in that: The guide (2) is a T-shaped fixed guide formed by 90° punching and bending and a special-shaped fixed guide formed by 90° punching and bending.

5. The combination lock base plate according to claim 1, characterized in that: The clamping claws (3) are three square fixed clamping claws with notches formed by 90° punching and bending.

6. The combination lock base plate according to claim 1, characterized in that: The bottom plate flange structures (4) are provided with 5 to 7 structures.

7. The combination lock base plate according to claim 6, characterized in that: The bottom plate flange structure (4) is a fixed square flange formed by 90° punching and bending.

8. The combination lock base plate according to claim 1, characterized in that: The combination lock bottom plate is integrally formed.

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