Password drawer box electronic lock and lock block thereof

Abstract

The utility model discloses a password drawer box electronic lock which comprises a lock seat and a locked piece, a lock block, a rear supporting swing block, a transmission lever and an electric motor are arranged on the lock seat, the lock block is in shaft connection with the lock seat and provided with a first reset spring, a lock hook, a limiting groove and a rotation stopping step are arranged on the outer edge of the lock block, the lock hook corresponds to the locked piece, and the limiting groove is matched with a limiting rod for limiting. The rear supporting and swinging block is in shaft connection with the lock seat and provided with a second reset spring, one end of the rear supporting and swinging block is a supporting part and can abut against and be separated from the rotation stopping step, one fulcrum of the transmission lever is in shaft connection with the lock seat and provided with a third reset spring, a long arm and a short arm are formed, the short arm supports the inner side of the supporting part, and the electric motor is fixed to the lock seat and makes contact with the long arm through a shifting rod. By the adoption of the structure, the rear supporting swing block, the transmission lever and the locking block are prevented from directly colliding, shaking force and large noise are avoided, meanwhile, the shifting rod and the transmission lever are in non-fixed linkage, the lock structure is not prone to loosening and damage, the service life is prolonged, and the working power of the electric motor can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of electronic locks, in particular to an electronic lock for a password drawer box and a lock block thereof. Background Art

[0002] A password drawer box is a drawer-type box that can be unlocked by various methods such as digital passwords and fingerprint recognition. It can be used to store and protect personal items or important documents. Usually, this type of password drawer box is equipped with an electronic lock at the rear of the drawer to achieve the functions of automatic locking and password unlocking.

[0003] The Chinese utility model patent specification (publication number: CN218419013U) discloses a drawer structure, which, in conjunction with its accompanying drawings, includes: a drawer body 200, a support plate 300 is arranged at the rear end of the drawer body, the support plate has a locking port 310, the locking port corresponds to a connecting column of a connecting member 110, and a rotatable fastener 400 and a limit member 500 are also arranged on the support plate. The fastener is composed of a lock body 410 and a first return spring 420, the first return spring can make the lock body generate a restoring resilience, the lock body is provided with a limit opening 412 corresponding to the lock opening, and a first step 413 and a second step 414, wherein the limit opening has a horizontal protrusion forming a toggle portion 415 for the connecting member 110 to toggle; the limit member 500 is composed of a main body 510 and a second return spring 520, the main body has a swing arm 530, and the toggle arm 530 is toggled to be tightly attached to the lock body 410 by the second return spring 530, the main body 510 is provided with a first tightening protrusion 511 and a second tightening protrusion 512 on the side facing the lock body 410, and corresponding to the first step and the second step of the lock body, in addition, the swing arm is also fixedly connected to the shaft of the motor 800 through the toggle rod 810. When working, in the unlocked state, the first tightening protrusion presses against the first step 413 to limit the reverse rotation of the lock body. When the connecting column hits the toggle part of the lock body, it pushes the lock body to rotate forward, and its limiting mouth locks the connecting column in the lock mouth, and the limiting member is pressed against the lock body under the action of the second return spring, and moves to the second step to tighten, so that the lock body cannot return to its position to achieve locking; on the contrary, when unlocking, the toggle rod is controlled by the motor to rotate and push the limiting member to swing, so that the first tightening protrusion is disengaged from the second step. At the same time, the lock body is reset and rebounded under the action of the first return spring, so that the first step is again pressed against the first tightening protrusion, and the second step is pressed against the second tightening protrusion. However, after understanding and analyzing the structure and working principle of the above drawer lock, it was found that it has the following shortcomings: 1. During the unlocking process, the motor controls the rotation of the toggle rod to drive the limit piece to swing, causing the first tightening protrusion of the limit piece to be tightened against the first step again. At the same time, the lock body will generate a reset rebound impact force, which will collide and vibrate with the first tightening protrusion. The swing arm, toggle rod and motor are connected together in a linkage manner. Long-term use may easily lead to structural looseness, damage to parts, and generate loud noise; 2. Since the motor, toggle rod and limit piece are fixed together, and the limit piece applies a tightening force to the first step or the second step, when the motor drives the toggle rod and the limit piece, the weight of the limit piece and its tightening force will cause resistance to the rotation of the motor output shaft, thereby increasing the load and power consumption of the motor.

[0004] In view of this, the inventor designed the invention based on his relevant experience in the field of password boxes over the years, considered the structural optimization of the product, and made the invention after many tests and improvements. Summary of the invention

[0005] In order to solve the problems existing in the prior art, the present utility model provides a password drawer box electronic lock and its lock block that can increase the structural stability of the electronic lock, reduce working noise, and reduce the power consumption of the motor.

[0006] To achieve the above object, the present utility model provides a password drawer box electronic lock, which includes: a lock base and a locked member. A lock block, a rear support swing block, a transmission lever, and an electric motor are arranged on the lock base. The lock block is axially connected to the lock base, and a first return spring is also provided to enable it to rotate and reset. A lock hook, a limit groove, and a rotation stop step are respectively arranged on the outer edge of the lock block. Among them, the lock hook corresponds to the locked member and can cooperate with each other to hook and separate. A fixed limit rod is arranged in the limit groove to limit the rotation range of the lock block. The rear support swing block is axially connected to the lock base, and a second return spring is also provided to enable it to rotate and reset. One end of the rear support swing block serves as a support portion, which can contact and separate from the rotation stop step in a matching manner. One fulcrum of the transmission lever is axially connected to the lock base, and a third return spring is also provided to form a long arm and a short arm, enabling it to move in a lever manner, and the short arm supports the inner side of the support portion of the rear support swing block. The electric motor is fixed on the lock base, and its output shaft is connected to a dial rod, and the other end of the dial rod contacts the long arm of the transmission lever.

[0007] The present utility model further provides a password drawer box electronic lock, and at least one buffer layer is further covered on the surface of the limit rod.

[0008] The present utility model further provides a password drawer box electronic lock, and the buffer layer is any one of rubber, foam, and sponge materials.

[0009] The present utility model further provides a password drawer box electronic lock, and a raised rubber body is further arranged on the peripheral contour surface of the lock block for buffering and noise reduction.

[0010] The present utility model further provides a password drawer box electronic lock, and the lock block includes: an upper clamping block and a lower clamping block, and a rubber layer is clamped between the two clamping blocks. The outer edge of the rubber layer has a flange, and the flange constitutes the raised rubber body on the peripheral contour surface of the two clamping blocks.

[0011] The present utility model further provides a password drawer box electronic lock, and the long arm of the transmission lever is further connected to a pull rope, and the other end of the pull rope is arranged outside the drawer box for pulling operation.

[0012] The present utility model further provides a password drawer box electronic lock, and the electric motor is fixed on the lock base in a horizontal manner.

[0013] The present utility model also provides a lock block for the electronic lock of the password drawer box described above, which includes: an upper clamping block and a lower clamping block, and a rubber layer is clamped between the two clamping blocks. The outer edge of the rubber layer has a flange, and the flange constitutes a raised rubber body on the peripheral contour surface of the two clamping blocks. In addition, a lock hook, a limiting groove and a rotation stopping step are provided on the outer edge of the lock block.

[0014] Compared with the prior art, the present utility model provides a lock block, a rear support swing block, a transmission lever and an electric motor on the lock base which cooperate with each other. During the cooperation process, the rotation of the lock block is limited by the limiting rod, and its lock hook corresponds to the locked part. When the locked part touches the lock hook part of the lock block, the lock block rotates clockwise, and the hook mouth of its lock hook will hook the locked part accordingly. At this time, the rear support swing block and the transmission lever respectively act under the action of their return springs, so that the support part of the rear support swing block abuts against the rotation stopping step on the periphery of the lock block along the periphery of the lock block, stopping the rotation of the lock block and locking the locked part, thus completing the locking action, and the short arm of the transmission lever supports the support part of the rear support swing block; on the contrary, when unlocking, the electric motor drives the dial rod to swing, applying pressure to the long arm of the transmission lever. Using the lever principle, the short arm of the transmission lever spreads the rear support swing block, so that its support part disengages from the rotation stopping step of the lock block. The lock block will rotate counterclockwise under the action of its return spring, and at the same time, it is limited and stopped by the limiting rod, and the lock hook of the lock block will release the locked part, and the locked part can disengage from the hook mouth of the lock hook, completing the unlocking action. During the above locking and unlocking processes, the rear support swing block gently buckles on the rotation stopping step along the periphery of the lock block by using the action of its return spring. At the same time, the rotation of the lock block is limited by the limiting groove and the limiting rod, realizing the stop of the rotation of the lock block, thus avoiding the direct collision between the rear support swing block, the transmission lever and the lock block, generating vibration force and relatively large noise. Moreover, the connection between the dial rod and the transmission lever is a contact connection rather than a fixed connection. In this way, the influence of the force conduction of the rear support swing block and the transmission lever on the electric motor will be reduced, thus ensuring the stability of the electric motor, making the overall structure of the electronic lock not easy to loosen and damage. This not only improves the service life of the electronic lock, but also can reduce the working power of the electric motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the present utility model.

[0016] Figure 2 It is a locking and unlocking state diagram of the present utility model.

[0017] Figure 3 It is the structure of the rear support swing block and the transmission lever of the present utility model Figure 2 。

[0018] Figure 4 It is a structural diagram of the lock block of the present utility model.

[0019] Figure 5 This is an exploded view of the lock block of the present utility model.

[0020] Reference numerals: 1—lock base; 2—electric motor; 3—lever; 4—rear support swing block; 5—transmission lever; 6—lock block; 7—U-shaped notch; 8—lock rod; 9—pull rope; 10—U-shaped seat; 11—upper clamping block; 12—lower clamping block; 13—rubber layer; 14—flange; 15—fastening screw; 41—support part; 42—triangular body; 43—arc-shaped groove; 44—second return spring; 45—groove; 46—first-stage step; 51—long arm; 52—short arm; 53—third return spring; 54—elliptical body; 55—circular body; 60—pushing part; 61—lock hook; 62—rotation-stop step; 63—limiting groove; 64—first return spring; 65—limiting rod; 101—rear side part; 102—bottom; 103—right side part. Detailed implementation manners

[0021] To make the invention purpose, technical solutions and beneficial effects of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments.

[0022] As Figure 1 、 Figure 2 shown, the present utility model is an electronic lock for a password drawer box, which mainly consists of components such as a lock base 1, a lock block 6, a rear support swing block 4, a transmission lever 5 and an electric motor 2. Among them, the lock base, the lock block, the rear support swing block and the transmission lever are all made of iron and are implemented in the following manner.

[0023] The lock base 6 is an iron right-angled base, including: a rear side part 101, a bottom 102 and a right side part 103. Among them, the rear side part of the lock base is connected to the rear part of the drawer and is fixed with screw parts. At one end edge of the bottom of the lock base far from the rear side part, a U-shaped notch 7 is provided, and this U-shaped notch serves as a lock opening corresponding to a locked part.

[0024] The above-mentioned locked part includes: a horizontally arranged U-shaped seat 10 and a lock rod 8. The U-shaped seat is fixed to the rear part inside the drawer box. The lock rod is made of iron, is perpendicular to the opening of the U-shaped seat, and both ends of the lock rod are fixed. This lock rod corresponds to the U-shaped notch 7 of the lock base and can move in and out on the U-shaped notch.

[0025] The lock block 6 is arranged on the bottom 102 of the lock seat, and the middle part thereof is connected to the bottom of the lock seat through an axis so that it can rotate. At the same time, structures such as a lock hook 61, a limit groove 63 and a stop step 62 are respectively arranged on the outer edge of the lock block. The lock hook is in a "hook" shape, with a hook mouth corresponding to the above-mentioned U-shaped notch 7, and a push portion 60 extends outward at the hook mouth, and the push portion contacts the lock rod 8 accordingly. When the lock rod contacts the push portion, the lock block rotates clockwise, and the lock hook rotates accordingly and hooks the lock rod to achieve locking; conversely, when the lock block rotates counterclockwise, the lock hook also rotates accordingly, and the lock rod is released, and the lock rod can leave the lock hook to complete unlocking. The limit groove 63 is a long arc-shaped notch, and a limit rod 65 is arranged in the long arc-shaped notch, and the limit rod is also fixed on the bottom of the lock seat. When the lock block rotates, the long arc-shaped notch rotates accordingly, and the two ends of the notch will be blocked by the limit rod, so that the lock block can only rotate within the limited range of the long arc-shaped notch, effectively avoiding the problem of inaccurate rotation positioning of the lock block, and preventing damage to parts due to excessive rotation. A first reset spring 64 is also provided on the lock block. The first reset spring is a torsion spring, which is sleeved on the connecting shaft between the lock block and the lock seat. At the same time, one end of the torsion spring is connected to the lock block 6, and the other end is against the limit rod 65, thereby generating a torsion force. The first reset spring can make the lock block produce elastic reset after rotation, that is, after rotation, it can automatically return to the initial position.

[0026] The rear support swing block 4 is located beside the lock block 6, one end of which is connected to the bottom of the lock seat through an axis, and swings with the end as the axis. The other end of the rear support swing block is a support portion 41, which abuts against the outer edge of the lock block 6 and can enter the anti-rotation step 62 of the lock block along the outer edge to conflict with it. In addition, a second reset spring 44 is also provided on the rear support swing block. The second reset spring is also a torsion spring, which is sleeved on the connecting shaft between the rear support swing block and the lock seat. At the same time, one end of the torsion spring is hooked on the surface of the rear support swing block, and the other end is against the right side 103 of the lock seat. In this way, the rear support swing block will produce elastic reset during the swinging process, and will always be close to the outer edge of the lock block 6.

[0027] The transmission lever 5 is located between the locking block 6 and the rear support pendulum block 4. The transmission lever is provided with an elliptical body 54 as a fulcrum, and is axially connected to the bottom of the lock seat through the elliptical body to form a long arm 51 and a short arm 52, thereby realizing the movement of the lever. The outer side of the elliptical body and the short arm of the transmission lever abut against the inner side of the support portion 41 of the rear support pendulum block and play a supporting role. In this embodiment, an arc-shaped groove 43 is provided on the inner side of the support portion of the rear support pendulum block, and a raised triangular body 42 is also provided in the arc-shaped groove. The arc-shaped groove and the triangular body correspond to the outer side of the elliptical body and the short arm of the transmission lever respectively, and the short arm abuts against the inclined surface of the triangular body to form a barrier between them. When the transmission lever operates in a lever manner, the short arm can prop open the support portion of the rear support pendulum block to leave the outer edge of the locking block 6. In addition, the transmission lever is also provided with a third reset spring 53, which is also a torsion spring. The torsion spring is sleeved on the connecting shaft of the elliptical body. At the same time, one end of the torsion spring is connected to the transmission lever, and the other end is against the connecting column fixed to the lock seat, so that the outer side of the elliptical body of the transmission lever and the short arm remain close to the inner side of the supporting part of the rear support pendulum block, and play a supporting and resetting role.

[0028] like Figure 3 As shown, in another embodiment, the transmission lever is provided with a circular body 55 as a fulcrum, and is axially connected to the bottom of the lock seat through the circular body, so that it forms a long arm 51 and a short arm 52, thereby realizing the movement of the lever. A groove 45 is provided on the inner side of the support portion of the rear support swing block, and a first step 46 is provided in the inner groove. The groove and the first step correspond to the outer side of the circular body and the short arm of the transmission lever, respectively, and enable them to be placed therein to form a block between each other. When the transmission lever is operated in a lever manner, the short arm can work with the first step to prop open the support portion of the rear support swing block, so that it leaves the outer edge of the lock block 6.

[0029] The electric motor 2 is vertically mounted on the bottom 102 of the lock seat and fixed by screws and two support columns. The output shaft of the electric motor is connected to a lever 3, and the lower end of the lever contacts the long arm 51 of the transmission lever. By rotating the output shaft of the electric motor, the lever can be controlled to push the long arm of the transmission lever to swing counterclockwise. By using the lever principle, the short arm of the transmission lever also swings counterclockwise, thereby propping up the support portion 41 of the rear support swing block and disengaging it from the anti-rotation step 62 of the lock block.

[0030] Furthermore, since the locking block is constrained by the long arc-shaped notch 63 and the limit rod 65 when rotating, its range of motion is limited. At the same time, under the action of the first reset spring 64, the locking block will generate a reset elastic force. During this reset process, the long arc-shaped notch of the locking block will hit the limit rod, causing vibration and noise problems. In order to solve this problem, a buffer layer is also covered on the surface of the limit rod 65 to reduce vibration and noise and improve the stability of the structure. This buffer layer is formed of rubber material, and can also be formed of any material such as foam or sponge, and can also be replaced by other known buffer materials. By adding a buffer layer to the limit rod, the noise and structural stability problems caused by collision are effectively reduced. In addition, the buffer layer can also be provided with two or three layers.

[0031] More preferably, in order to reduce the noise generated when the lock rod pushes the lock block, a raised rubber body (not shown in the figure) is further provided on the outer contour surface of the lock block 6. When provided, a circle of grooves can be provided on the outer contour surface of the lock block, and the rubber body is embedded and fixed around the circle of grooves, and a slightly raised part is used as a buffer surface to reduce the noise caused by touch.

[0032] like Figure 4 , Figure 5 As shown, in another preferred embodiment, the locking block 6 is composed of an upper clamping block 11 and a lower clamping block 12 of the same shape, a rubber layer 13 is sandwiched between the two clamping blocks, and then fixed together by fastening screws 15, or adhesive / glue can be used for fixing. The outer edge of the rubber layer has a flange 14, which constitutes a raised rubber body on the outer contour surface of the two clamping blocks, and the raised rubber body can also form a buffer surface to reduce the noise caused by touch.

[0033] like Figure 1 As shown, preferably, the long arm 51 of the transmission lever is also connected to a pull rope 9 made of steel wire. The other end of the pull rope is arranged on the outside of the drawer box and is connected by a control device for realizing pulling so as to perform a pulling operation. When the electronic lock control fails or the electric motor is damaged and cannot be unlocked, the pull rope can be used as a backup unlocking device. During operation, the pull rope is pulled by the control device to make the long arm and the short arm of the transmission lever rotate counterclockwise at the same time, open the support part of the rear support swing block, and make the support part disengage from the anti-rotation step 62. At this time, the lock block releases the stop, and at the same time, under the action of the first reset spring, the lock block rotates counterclockwise, so that the lock hook of the lock block releases the lock rod, and the lock rod can leave the lock hook and the lock seat to complete the unlocking.

[0034] like Figure 4 , Figure 5As shown, the utility model also provides an improved lock block for the above-mentioned password drawer box electronic lock, the lock block 6 is composed of an upper clamp block 11 and a lower clamp block 12, and a rubber layer 13 is sandwiched between the two clamp blocks, and then fixed together by fastening screws 15. The rubber layer is a rubber sheet, and its outer edge has a flange 14, which constitutes a raised rubber body on the outer contour surface of the two clamp blocks, thereby forming a buffer surface to reduce the noise generated when touching, and does not lose the strength. In addition, the outer edge of the lock block 6 is also provided with a lock hook 61, a limit groove 63 and a stop step 62. These structures correspond to the locked part, the limit rod and the supporting part of the rear support swing block in the above-mentioned password drawer box electronic lock, and cooperate with each other to work.

[0035] In an improved embodiment, in view of the fact that the lock seat itself and its lock mechanism and electric motor have a certain weight, if the lock seat is arranged at the rear of the drawer, the overall weight of the drawer will undoubtedly increase. Therefore, in order to reduce the influence of the drawer's carrying capacity, under certain working conditions, the installation positions of the lock seat and the locked member are replaced, that is, the lock seat is fixed at the rear of the drawer box, and the locked member is fixed at the rear of the drawer. If this installation layout is adopted, and the electric motor is installed vertically, when there are two or more drawer layers in the drawer box, the lock seat will form a stacked arrangement, and the lower lock seat will be blocked by the upper lock seat, so that when the electric motor in the lower lock seat needs to be repaired or replaced, the disassembly and installation work becomes particularly difficult, which correspondingly increases the complexity of the maintenance work. In order to solve this problem, the electric motor 2 is installed in a horizontal manner on the rear side 101 of the lock seat and fixed by screws and two support columns. The output shaft of the electric motor is connected to a vertically arranged lever, the lower end of which contacts the long arm 51 of the transmission lever. The output shaft of the electric motor rotates to control the lever to push the long arm of the transmission lever to swing counterclockwise, and the short arm of the transmission lever also swings counterclockwise by lever principle, propping up the supporting part 41 of the rear support swing block, thereby disengaging from the anti-rotation step 62 of the lock block. The horizontal installation of the electric motor makes the maintenance of the drawer electronic lock of the multi-layer drawer box more convenient and flexible.

[0036] Reference Figure 2 , the working principle of the utility model is as follows:

[0037] 1. When locking, first push the drawer into the drawer box, and the U-shaped notch of the lock seat at the rear of the drawer will wait for the lock rod of the locked part to enter. At the same time, when the lock rod touches the push part of the lock block, the lock block rotates clockwise, and its lock hook also rotates and hooks the lock rod. At this time, the support part of the rear support swing block buckles into the anti-rotation step along the edge of the lock block and forms a conflict with it, preventing the lock block from rotating, successfully locking the lock rod, and making the drawer unable to be pulled out, thus completing the locking operation;

[0038] 2. When unlocking, start the electric motor to drive the lever to rotate clockwise. The movement of the lever is transmitted to the long arm of the transmission lever, causing it to swing counterclockwise. Due to the lever principle, the short arm of the transmission lever swings counterclockwise at the same time. In this way, the short arm can prop up the support part of the rear support swing block to make it leave the anti-rotation step of the lock block. At this time, the lock block is released from the stop and, under the action of the first reset spring, it rebounds counterclockwise, causing the lock hook of the lock block to release the lock rod, and the lock rod can leave along the U-shaped notch of the lock seat to complete the unlocking, and the drawer can be pulled out of the drawer box. In addition, if the lock seat is combined with a spring, the spring will eject a part of the drawer to facilitate the password operation of the password drawer box.

[0039] Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making any creative work shall fall within the scope of protection of the utility model.

Claims

1. A password drawer box electronic lock, comprising: A lock seat (1) and a locked part, characterized in that a lock block (6), a rear support swing block (4), a transmission lever (5) and an electric motor (2) are arranged on the lock seat, the lock block and the lock seat are connected by an axis, and a first reset spring (64) is also provided to enable the lock block to rotate and reset, a lock hook (61), a limit groove (63) and a stop step (62) are respectively provided on the outer edge of the lock block, wherein the lock hook corresponds to the locked part and can be hooked and separated in cooperation with each other, a fixed limit rod (65) is provided in the limit groove to limit the rotation range of the lock block, the rear support swing block and The lock seat is connected by an axis and is also provided with a second reset spring (44) so ​​that it can rotate and reset. One end of the rear support swing block serves as a support portion (41) and can contact and separate from the anti-rotation step. A fulcrum of the transmission lever is connected to the lock seat by an axis and is also provided with a third reset spring (53) so that it forms a long arm (51) and a short arm (52) so that it can move in a lever manner, and the short arm supports the inner side of the support portion of the rear support swing block. The electric motor is fixed on the lock seat, and its output shaft is connected to the shift rod (3). The other end of the shift rod is in contact with the long arm of the transmission lever.

2. The electronic lock for a password drawer box as claimed in claim 1, characterized in that: The surface of the limiting rod (65) is also covered with at least one buffer layer.

3. The electronic lock for a password drawer box as claimed in claim 2, characterized in that: The buffer layer is made of any material of rubber, foam and sponge.

4. The electronic lock for a password drawer box as claimed in claim 1, characterized in that: The outer contour surface of the locking block (6) is also provided with a raised rubber body for buffering and silencing.

5. The electronic lock for a password drawer box as claimed in claim 1 or 4, characterized in that: The locking block comprises an upper clamping block (11) and a lower clamping block (12), and a rubber layer (13) is sandwiched between the two clamping blocks. The outer edge of the rubber layer has a flange (14), and the flange constitutes a convex rubber body on the outer contour surface of the two clamping blocks.

6. The electronic lock for a password drawer box as claimed in claim 1, characterized in that: The long arm of the transmission lever is also connected to a pull rope, and the other end of the pull rope is arranged outside the drawer box for pulling operation.

7. The electronic lock for a password drawer box as claimed in claim 1, characterized in that: The electric motor is fixed on the lock seat in a transverse manner.

8. A lock block used for the electronic lock of a password drawer box according to claim 1, characterized in that: include: An upper clamping block and a lower clamping block, and a rubber layer is sandwiched between the two clamping blocks. The outer edge of the rubber layer has a flange, which constitutes a raised rubber body on the outer contour surface of the two clamping blocks. A locking hook, a limiting groove and a rotation-stopping step are also arranged on the outer edge of the locking block.

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