CN221002326U - Cabinet door electronic lock - Google Patents

Abstract

The utility model relates to a cabinet door electronic lock of a safe, which comprises: the motor, transmission shaft and lock plunger, the output drive transmission shaft rotation of motor, the transmission shaft is arranged in the slide, there is bayonet lock and cover to establish the spring on its surface, and bayonet lock and spring cooperation are relative motion, the outside of slide has sliding structure, simultaneously, still be connected with the fixture block on the slide, the fixture block can stretch out and draw back along with the slip of slide, the upper and lower both ends of lock plunger are used for carrying out the hub connection with the lateral part of cabinet door open end, the length of lock plunger is in the door frame, one of them side is the convex part, after rotatory, this convex part can form the constraint with the fixture block that stretches out, the opposite side is concave locked groove, locked groove forms the motion interference with the dog that is solid on the door frame. Due to the adoption of the structure, the transmission, linkage structure and the number of the lock bolts of the electronic lock are simplified, the power consumption of the motor and the power consumption of the battery are reduced, the service life is prolonged, the compactness between the lock bolts and the door frame is improved, the transmission is smoother, and meanwhile, the transmission precision is improved.

Description

Cabinet door electronic lock

Technical Field

The utility model relates to the field of electronic lock structures, in particular to a cabinet door electronic lock for safe products such as a safe box/box and the like.

Background

The electronic lock is an electronic device which performs switch control by means of electronic passwords, fingerprint identification, card swiping and the like. Currently, electronic locks used in safes or safes typically combine electric and manual controls to accomplish the unlocking and locking tasks. The device consists of a driving motor, a transmission mechanism, a linkage mechanism, a latch, a handle and other parts. Wherein, in order to strengthen the theftproof function and the security of cabinet door, the hasp can be become by a plurality of tongue groups of alternate arrangement, even can add spring bolt or world pole in the upper and lower both sides of cabinet door for the cabinet door is more firm after locking, thereby is difficult to prizing. To ensure that all the bolts work synchronously, the linkage mechanism connects the bolts, which requires a plurality of movable plates sliding transversely and longitudinally to cooperate and link. When the lock is in operation, the driving motor controls the linkage mechanism to carry out electric control locking or unlocking through the transmission mechanism, and then the handle can manually operate the linkage mechanism to work in an unlocking state, so that the extension and retraction of all lock bolts are controlled, and the unlocking purpose is realized.

Another type of electronic lock is fully electrically controlled unlocking and locking tasks, such as: the safe lock structure disclosed in the Chinese specification (bulletin number: CN 112854957A) is characterized in that a first base is symmetrically arranged on the upper side and the lower side of the inner wall of a box door, a first sliding plate and a second sliding plate are respectively connected to the first base in a sliding manner, a second base is symmetrically arranged on the left side and the right side of the inner wall of the box door, a third sliding plate and a fourth sliding plate are respectively connected to the second base in a sliding manner, mounting plates are arranged at the ends of the first sliding plate, the second sliding plate and the fourth sliding plate, and door pins are arranged on the mounting plates. The first sliding plate and the fourth sliding plate are connected in a sliding mode through the first sliding plate, the first sliding plate and the third sliding plate are connected in a sliding mode through the second sliding plate, the third sliding plate and the second sliding plate are connected in a sliding mode through the third sliding plate, and the second sliding plate and the fourth sliding plate are connected in a sliding mode through the fourth sliding plate. In addition, there is a actuating mechanism in slide three next door, and actuating mechanism includes: the device comprises a rack, a gear, a worm wheel, a motor and a worm, wherein the rack is fixed on the side face of the sliding plate III, the gear is meshed with the rack, an output shaft of the motor is connected with the worm through a coupler, and the worm is meshed with the worm wheel. When the safe lock structure works, the motor drives the sliding plate III to move on the base II, the sliding plate III simultaneously drives the sliding plate I and the sliding plate II to move through the pushing plate II and the pushing plate III, and the pushing plate I and the pushing plate IV drive the sliding plate IV to move, so that the door pin on the mounting plate moves simultaneously. However, by analyzing the structure and working principle of the safe lock, it was found that the following defects exist: firstly, the motor needs to drive a plurality of mounting plates and door pins to synchronously work, the mounting plates and the door pins have certain weight, when the number is larger, the weight is heavier, the load and the power consumption of the motor are increased intangibly, the service life is influenced, and a large amount of battery power is consumed; secondly, a quadrilateral connecting rod mechanism formed by a plurality of sliding plates and pushing plates is adopted, so that the transmission and linkage structures are complex, the movable space is occupied, the requirement on the matching precision is high, and the problem of jamming can occur as long as the resistance of any node is increased or is not smooth; finally, the tongues are arranged alternately, so that the combination between the tongue and the door frame is not tight enough after locking, and the risk of prying and damage exists.

The inventor has designed the experience related to the field of safe door locks for many years, considers the structural optimization of products, and makes the invention through multiple experiments and improvement.

Disclosure of Invention

In order to solve the defects and shortcomings of the electronic lock, the utility model provides the cabinet door electronic lock which can reduce the power consumption of a motor, simplify transmission and linkage structures and increase the compactness between a lock tongue and a door frame.

In order to achieve the above object, the present utility model is an electronic lock for a cabinet door, comprising: the motor, transmission shaft and lock plunger, the output drive transmission shaft of motor is rotatory, and the transmission shaft is arranged in a slide, and its surface is equipped with the bayonet lock, is equipped with the spring in the slide, and the spring housing is at the surface of transmission shaft, and when the transmission shaft was rotatory, the bayonet lock can move for the helicoidal of spring, has sliding structure in the outside of slide, makes it can slide to can with transmission shaft relative motion, simultaneously, still connected a fixture block on the slide, this fixture block can stretch out and draw back along with the slip of slide, the upper and lower both ends of lock plunger are used for carrying out the hub connection with the lateral part of cabinet door open end, make it can the rotary motion, and the length of lock plunger is within the door frame, and wherein one side is the convex part, and rotatory back, this convex part can form the constraint with the fixture block that stretches out, and the opposite side is the concave locked groove, and this locked groove still forms the motion interference with the dog that is fixed in the door frame.

As a preferable scheme of the cabinet door electronic lock, the upper end and the lower end of the lock bolt are respectively provided with a torsion spring, so that the lock bolt has reset elasticity when rotating.

As a preferable scheme of the cabinet door electronic lock, the bayonet lock is replaced by external threads, and meanwhile, the spring is replaced by a nut, and the nut is in threaded fit with the external threads.

As a preferred scheme of cabinet door electronic lock, still include closing door detection switch, this closing door detection switch locates the lateral part of cabinet door, can carry out circuit connection through the control mainboard together with the motor.

As a preferable scheme of the cabinet door electronic lock, a gear set is further arranged between the output end of the motor and the transmission shaft to serve as a transmission mechanism.

As a preferable scheme of the cabinet door electronic lock, the locking groove of the cabinet door electronic lock extends along the length direction of the lock bolt, and the length of the locking groove is equivalent to that of the stop block.

As a preferred embodiment of the cabinet door electronic lock, the protruding portion thereof is also provided to extend along the length direction of the lock bolt.

As a preferable scheme of the cabinet door electronic lock, the clamping block is Z-shaped.

As a preferred scheme of the cabinet door electronic lock, further comprising: the support plate is used as a base of the electronic lock and used for being connected with the inner side of a cabinet door, a pair of T-shaped slotted holes are respectively formed in two sides of the surface of the support plate, each T-shaped slotted hole is connected and supported by a T-shaped rod, a clamping groove is formed in the surface, close to the transverse portion, of the upper end of the T-shaped rod, and the clamping groove passes through a transverse hole of the T-shaped slotted hole and is clamped with a vertical hole of the T-shaped slotted hole.

As a preferable scheme of the cabinet door electronic lock, the surface of the bearing plate is further provided with two long sliding grooves, the sliding structure consists of two sliding columns which are respectively matched with the two long sliding grooves of the bearing plate, and the sliding function is realized.

As a preferred scheme of the cabinet door electronic lock, further comprising: the mechanical lock of key and movable support, the afterbody of key mechanical lock is equipped with a driving lever that rotates along with the lock core, and the one end of movable support is equipped with a vertical rectangular groove, has a slide bar of connecting the driving lever in this rectangular groove, and the other end of movable support is used for promoting two sliding column activities.

Compared with the prior art, the utility model drives the transmission shaft to rotate forward or backward through the motor, and the clamping pin of the transmission shaft is utilized to perform coiling and rotating fit around the spiral surface of the spring after the transmission shaft rotates, so that the spring is controlled to advance or retreat, the sliding seat is pushed to slide, and the clamping block is driven to stretch and retract. When the door is locked, the latch bolt rotates in the reverse direction when it hits a stopper mounted on the door frame. In the rotating process, a space difference is generated between the locking groove of the lock plunger and the stop block, so that the stop block smoothly enters the locking groove. Meanwhile, a blocking space is formed between the convex part of the lock plunger and the inner wall of the door panel, the clamping block extends out and is inserted into the blocking space to form a blocking with the convex part, and a limiting structure is formed together with the locking groove to limit the lock plunger to move, so that the locking purpose is realized; on the contrary, after the fixture block is retracted, the limiting structure is invalid, the lock plunger can rotate positively, and the stop block can be separated from the locking groove, so that the unlocking purpose is realized. Therefore, the electronic lock structure simplifies the transmission and linkage structure in the middle, and does not need to directly or indirectly drive a large number of lock tongue assemblies, thereby reducing the power consumption of a motor, reducing the electric quantity consumption of a battery and prolonging the service life. In addition, the lock bolt is connected with the check block of the door frame in a meshed mode, the length of the lock bolt can be equal to that of the door frame, the tightness between the lock bolt and the door frame is improved, and the safety is improved. And the transmission shaft is arranged in the sliding seat, and the rotation fit of the bayonet lock and the spring is utilized, so that the transmission is smoother, and the transmission precision is improved.

Drawings

FIG. 1 is a block diagram of an electronic lock and cabinet door of the present utility model.

Fig. 2 is a front view of the electronic lock of the present utility model.

Fig. 3 is a back structural view of the electronic lock of the present utility model.

Fig. 4 is a cross-sectional view of the latch of the present utility model.

Reference numerals: 1-a door panel; 2-a receiving plate; 3-door frame; 4-a motor; 5-a transmission shaft; 6-clamping blocks; 7, a lock plunger; 8-a locking groove; 9-a convex part; 10-supporting blocks; 11-a torsion spring; 12-a bolt; 13-door closing detection switch; 14-T-shaped slots; 15-T-bar; 16-a clamping groove; 17-a fixed seat; 18-a first mounting groove; 19-a second mounting groove; 20-a gear set; 21-a slide; 22-a third mounting groove; 23-a spring; 24-bayonet lock; 25-a sliding column; 26-a long chute; 27-a blocking space; 28-a stop block; 29-a motherboard box; 30-a deflector rod; 31-a slide bar; 32-an elongated slot; 33-movable support.

Detailed Description

In order to make the objects, technical solutions and advantageous effects of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments of the present utility model.

As shown in fig. 1, 2 and 3, the present embodiment is an electronic lock for a cabinet door, which includes: the motor 4, the transmission shaft 5, the clamping block 6, the lock bolt 7 and the like are arranged on the inner side of the door plate 1 of the cabinet door through a bearing plate 2.

Further, the receiving plate 2 is used as a base of the electronic lock of the cabinet door, and the surface of the receiving plate is provided with 4 hollowed T-shaped slot holes 14, wherein the two T-shaped slot holes are arranged at two sides of the surface of the receiving plate respectively and are arranged up and down. Each of the T-shaped slots is supportingly connected by a T-shaped bar 15 which is fixed to the inner side of the door panel 1. In addition, the upper end of each T-shaped rod is provided with clamping grooves 16 on two sides close to the transverse part. When the bearing plate is connected with the door plate, 4T-shaped groove holes on the bearing plate can be sleeved on the corresponding 4T-shaped rods through the transverse holes of the bearing plate, and meanwhile, the clamping groove 16 of each T-shaped rod is aligned with the vertical hole of the T-shaped groove hole and pushed into the vertical hole to realize clamping connection, namely clamping connection. Through the chucking cooperation structure of T shape slotted hole and T shape pole, realized the convenient dismouting and the maintenance of accept board and electronic lock to ensure that its connection is firm reliable.

The surface of the receiving plate is also provided with two parts, namely a fixed seat 17 and a sliding seat 21. The fixing seat is positioned at the rear part of the sliding seat and is fixedly connected with the bearing plate 2 through a screw. The surface of the fixing seat is provided with a first mounting groove 18 and a second mounting groove 19 which are communicated through a notch groove A. In addition, on the second mounting groove, a notch groove B is further provided at one end corresponding to the notch groove a. The surface of the slide 21 is provided with a third mounting groove 22, and the bottom of the slide is also provided with two sliding columns 25 which are arranged in parallel. Correspondingly, two long sliding grooves 26 corresponding to the sliding columns are arranged on the surface of the bearing plate 2 so that the sliding seat can slide back and forth.

The electric motor 4 is a motor which is fixed in a first mounting groove 18 of the fixing seat, and the output end of the motor is placed in a second mounting groove 19 through a notch groove A, and the motor has a rotatable transmission space.

Further, a set of gears 20 for engagement with the motor is mounted in the direction of the output end of the motor, and is formed of three intermeshing gears and mounted in a second mounting groove 19. The output of the motor is in meshed communication with the first gear of the gear set 20. By the action of the set of gear sets 20, a deceleration effect can be achieved to suit the speed requirements of the electronic lock for actuation.

One end of the transmission shaft 5 is a gear end, the gear end is meshed with the last gear of the gear set 20 for transmission, and the transmission shaft passes through the notch B and then is placed in the third mounting groove 22 of the sliding seat, and a rotary transmission space is formed. The surface of the transmission shaft is sleeved with a spring 23, and meanwhile, the transmission shaft is also provided with a bayonet lock 24, when the transmission shaft rotates, the bayonet lock moves relatively around the spiral surface of the spring, and then the spring is driven to move to push the sliding seat to slide accurately, and in the sliding process, the transmission shaft and the sliding seat form relative movement.

In another embodiment, the bayonet lock may be replaced with an external thread provided on the drive shaft, and the spring replaced with a nut, and the nut is threadedly engaged with the external thread. Through the cooperation of the structure, the transmission structure is more stable, the transmission precision is higher, and the transmission structure has higher tensile strength and wear resistance.

The clamping block 6 adopts a Z-shaped design, wherein one end of the clamping block is connected with the sliding seat through a fastener, and the other end is provided with a clamping tongue C. When the slide seat moves, the clamping tongue of the clamping block can be driven to stretch and retract. In addition, because the electronic lock is arranged on the inner side of the cabinet door and then has the condition of high and low positions, namely is positioned on a platform similar to a step, the Z-shaped clamping block 6 can be better adapted to the working conditions of the high and low positions.

As shown in fig. 1 and 4, the lock bolt 7 is a long-strip shaft body and is vertically arranged on the side surface of the door opening end of the cabinet door. The length of the lock bolt is in the door frame 3 of the cabinet body, and the longer the length of the lock bolt is, the closer the cabinet door is locked with the door frame, so that the safety of the cabinet door is improved. The upper and lower ends of the lock bolt are supported and connected by the support blocks 10, and the bolt 12 is used as a shaft at the time of connection, so that the lock bolt can perform a rotational motion. The latch 7 forms a protrusion 9 toward one side of the latch C, which corresponds to the latch C of the latch, and when the latch is rotated reversely, a blocking space 27 is formed between the protrusion and the inner wall of the door panel, and the blocking space can accommodate the insertion of the latch C of the latch, thereby forming mutual constraint. The latch bolt forms a concave locking groove 8 towards the other side of the door frame, which locking groove also forms a moving interference with a stop 28 fixed to the door opening end of the door frame 3. The length of the stop may be comparable to the length of the latch or different from the length of the latch. When the outside of the locking groove touches the stop block, the lock bolt can reversely rotate, and in the rotating process, the stop block can be placed into the locking groove due to the distance difference generated by rotation and forms a limiting structure together with the clamping block. Otherwise, when the constraint of the clamping tongue of the clamping block disappears, the lock bolt can rotate positively, so that the lock groove is separated from the stop block.

Further, the upper and lower ends of the lock bolt are further provided with torsion springs 11, for example, one end of each torsion spring is fixed on the lock bolt 7 when connected, and the other end of each torsion spring is fixed on the supporting block 10, so that the lock bolt has reset elastic force when rotating. When the constraint of the clamping tongue C of the clamping block disappears, the lock plunger automatically rotates forwards to push the opening end of the door plate away for a certain distance, so that the electronic lock can be perceived to be in an unlocking state.

Further, the locking groove 8 is extended along the length direction of the lock bolt, and the length of the stopper 28 is equivalent to the locking groove 8. The design can increase the contact area and tightness between the lock bolt and the door frame, so that the structure is firmer after the lock, and the safety and stability of the lock are improved.

Further, the protruding portion 9 extends along the length direction of the lock bolt, so that the clamping tongue of the clamping block and the clamping block of the lock bolt are more easily corresponding, the correction process between the clamping tongue and the clamping block is shortened, and the installation efficiency is improved.

Further, the method further comprises the following steps: and a door closing detection switch 13, which is a push type switch, and is installed on the side surface of the bottom of the cabinet door. The door closing detection switch and the motor 4 are connected to the control main board together in a circuit and controlled by the control main board. The control main board is fixed on the inner side of the door board 1 through the main board box 29, and when the door is closed, a door closing detection switch at the bottom of the cabinet door collides with the bottom of the door frame 3 and is pressed. At this time, the door closing detection switch sends a circuit signal to the control main board, and after the control main board detects the switch state, the start-stop operation state of the motor is controlled.

As shown in fig. 1, further, the method further includes: a key mechanical lock and a movable bracket 33. The key mechanical lock consists of a lock shell and a lock core, and the lock core is controlled to rotate in the lock shell through a key. The tail of the lock cylinder is provided with a deflector rod 30 which rotates along with the rotation of the lock cylinder. One end of the movable support is provided with an upright long groove 32, a sliding rod 31 connected with a deflector rod is arranged in the long groove, and the other end of the movable support is used for pushing the two sliding columns 25. Under the condition that the electric control cannot unlock, the sliding seat can be driven to move backwards through the key mechanical lock, so that the clamping tongue C of the clamping block leaves the clamping space of the lock plunger, and the manual unlocking is performed.

The working mode of the cabinet door electronic lock is further described as follows:

1. the cabinet door is opened in the following way: when the motor rotates in the forward direction, the gear set drives the transmission shaft and the bayonet to rotate. In the rotating process, the clamping pin is contacted with the spiral surface of the spring, the spring moves to push the sliding seat to slide back and forth on the surface of the bearing plate, and the clamping block is pulled away from the clamping space of the lock bolt, so that the lock bolt is not limited any more. Then, under the action of the torsion spring, the lock plunger rotates to interfere with the door panel to stop, so that the cabinet door can be rotated to open, and then the door closing detection switch is disconnected;

2. The door body is closed: when the door body starts to be closed, the lock bolt contacts the stop block and rotates. When the door plate contacts with the stop block, the door closing detection switch is switched on, and the motor rotates reversely to drive the gear set to drive the transmission shaft and the bayonet lock to rotate. In the rotating process, the clamping pin is contacted with the spiral surface of the spring, the sliding seat is pushed to linearly slide forwards on the surface of the bearing plate through the movement of the spring, the clamping block is pushed into the clamping space of the lock bolt to clamp the lock bolt, and meanwhile, the lock bolt bites the clamping block through the locking groove to mutually restrict, so that the door body is safely closed.

All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Claims (11)

1. A cabinet door electronic lock, comprising: the door lock is characterized in that the output end of the motor drives the transmission shaft to rotate, the transmission shaft is arranged in a sliding seat (21), a clamping pin (24) is arranged on the surface of the transmission shaft, a spring (23) is arranged in the sliding seat, the spring is sleeved on the surface of the transmission shaft, when the transmission shaft rotates, the clamping pin can move relative to the spiral surface of the spring, a sliding structure is arranged outside the sliding seat, the sliding structure can slide and can move relative to the transmission shaft, meanwhile, a clamping block (6) is further connected to the sliding seat, the clamping block can stretch along with the sliding of the sliding seat, the upper end and the lower end of the locking bolt (7) are used for being connected with the side part of the door opening end of a cabinet door in a shaft mode, so that the door lock can rotate, the length of the locking bolt is within the door frame, after rotation, the protruding part can form constraint with the protruding clamping block, the other side is a concave locking groove (8), and the locking groove also forms movement interference with a stop block (28) fixed on the door frame.

2. The cabinet door electronic lock according to claim 1, wherein the upper and lower ends of the lock bolt (7) are respectively provided with a torsion spring (11) so as to have a reset elastic force when rotating.

3. The cabinet door electronic lock according to claim 1 or 2, wherein the bayonet is replaced with an external thread, and the spring is replaced with a nut, and the nut is screwed with the external thread.

4. The cabinet door electronic lock according to claim 1 or 2, further comprising a door closing detection switch (13) provided at a side portion of the cabinet door, capable of being electrically connected together with the motor through the control main board.

5. The cabinet door electronic lock according to claim 2, wherein a gear set (20) is further provided as a transmission mechanism between the output end of the motor and the transmission shaft.

6. The cabinet door electronic lock according to claim 1 or 2, wherein the locking groove is extended along the length direction of the lock bolt, and the length of the locking groove is equal to the length of the stopper.

7. The cabinet door electronic lock according to claim 6, wherein the protrusion is also extended along a length direction of the latch.

8. Cabinet door electronic lock according to claim 1 or 2, characterized in that the clamping block (6) is in a "Z" shape.

9. The cabinet door electronic lock according to claim 1 or 2, further comprising: the support plate (2) is used as a base of the electronic lock and is used for connecting the inner side of a cabinet door, a pair of T-shaped groove holes (14) are respectively formed in two sides of the surface of the support plate, each T-shaped groove hole is connected and supported by a T-shaped rod (15), a clamping groove (16) is formed in the surface, close to the transverse portion, of the upper end of each T-shaped rod, and the clamping groove passes through the transverse hole of each T-shaped groove hole and is clamped with the vertical hole of each T-shaped groove hole.

10. The cabinet door electronic lock according to claim 9, wherein the surface of the receiving plate is further provided with two long sliding grooves (26), and the sliding structure is composed of two sliding columns (25) respectively matched with the two long sliding grooves of the receiving plate to realize a sliding function.

11. The cabinet door electronic lock of claim 10, further comprising: the lock comprises a key mechanical lock and a movable support (33), wherein a deflector rod (30) rotating along with a lock cylinder is arranged at the tail part of the key mechanical lock, a vertical long groove (32) is arranged at one end of the movable support, a slide rod (31) connected with the deflector rod is arranged in the long groove, and the other end of the movable support is used for pushing two sliding columns to move.