A combined intelligent door lock

Abstract

The utility model discloses a combined intelligent door lock, including electromagnetic door lock and mechanical door lock, electromagnetic door lock includes actuator, switch body and control module, and actuator is equipped with armature, and switch body is equipped with electromagnet, and control module includes main control unit and the door opening switch and time relay of connection in main control unit, and main control unit controls the power supply of electromagnet coil through time relay, mechanical lock includes setting in the mechanical lock seat of movable door and setting in the mechanical lock hole of door frame, and mechanical lock seat is equipped with sliding part and has the lock bolt of card edge, and the lock bolt can be inserted into mechanical lock hole with the closing of movable door, and sliding part is fixedly connected with the lock bolt, and can drive the lock bolt to remove and make its card edge and mechanical lock hole and make the mechanical locking of carding. The utility model can improve the safety and reliability of elevator door lock, when the equipment appears the emergent condition of power failure, can guarantee the normal locking and opening of elevator car door, also can not cause the inconvenience of operation.

Description

Technical Field

[0001] This utility model relates to the field of security door lock technology, specifically to a combination smart door lock. Background Technology

[0002] Currently, wind turbine tower hoist door locks are generally divided into ordinary mechanical door locks and electromagnetic contact type safety door locks. Among them, electromagnetic contact type safety door locks are further divided into two types: electromagnetic locking and mechanical release, and mechanical locking and electromagnetic release.

[0003] Ordinary mechanical door locks have a simple structure but poor reliability, failing to adequately protect operator safety. Electromagnetic contact safety locks may fail to lock or release properly when the elevator is powered off, potentially endangering operator safety. Electromagnetic contact safety locks (with both electromagnetic locking and mechanical release mechanisms) cannot lock properly when the elevator is powered off; and normal release requires unlocking tools, causing inconvenience. Electromagnetic contact safety locks (with both mechanical locking and electromagnetic release mechanisms) cannot release properly when the elevator is powered off, requiring forced unlocking with a specific tool. This forces operators to carry unlocking tools, which may be lost, further complicating operations.

[0004] Existing elevator door locks lack security and reliability. When a power outage occurs, it is difficult to ensure the normal locking and opening of the elevator car door, which will cause operational inconvenience.

[0005] Therefore, a new type of elevator door lock is needed to solve the above problems. Utility Model Content

[0006] To address the common problems in existing technologies, this utility model proposes a combined intelligent door lock, which can improve the safety and reliability of elevator door locks. In the event of a power outage, it can ensure the normal locking and opening of the elevator car door without causing operational inconvenience.

[0007] The technical solution adopted in this utility model is as follows:

[0008] A combination smart door lock includes an electromagnetic door lock and a mechanical door lock;

[0009] The electromagnetic door lock includes an actuator installed on the movable door, a switch body installed on the door frame, and a control module connected to the switch body. The actuator is provided with an armature, and the switch body is provided with an electromagnet. The electromagnet is used to generate magnetic attraction to engage the armature to achieve electromagnetic locking. The control module includes a main controller and an opening switch and a time relay connected to the main controller. The main controller controls the power supply of the electromagnet coil through the time relay.

[0010] The mechanical lock includes a mechanical lock base disposed on the movable door and a mechanical lock hole disposed on the door frame. The mechanical lock base is provided with a sliding component and a lock tongue with a locking edge. The lock tongue can be inserted into the mechanical lock hole as the movable door is closed. The sliding component is fixedly connected to the lock tongue and can drive the lock tongue to move so that its locking edge engages with the mechanical lock hole to achieve mechanical locking.

[0011] Optionally, the main controller is a PLC.

[0012] Optionally, the time-delayed normally open contact of the time relay is connected in series in the power supply circuit of the electromagnet, and the control coil of the time relay is connected in series between the electromagnet control terminal and the power supply negative terminal of the main controller.

[0013] Optionally, the door opening switch is two normally closed contact switches connected in series between the switch signal input terminal and the positive power supply terminal of the main controller.

[0014] Optionally, the switch body is further provided with a status switch for sending an electromagnet engagement signal to the main controller; the status switch is connected in series between the electromagnet status receiving terminal and the power supply positive terminal of the main controller, and the status switch is closed when the electromagnet engages with the armature.

[0015] Optionally, the mechanical lock base includes a lock plate and a lock frame fixed to the lock plate. The lock plate has a first panel, and the lock frame has a second panel. The sliding component includes a first slide button mounted on the first panel and a second slide button mounted on the second panel. The first slide button, the second slide button, and the lock tongue are fixedly connected.

[0016] Optionally, the first slide button has a first slot and a second slot, the second slide button has a protrusion that is inserted into the first slot for fixation, and the root of the latch is inserted into the second slot for fixation.

[0017] Optionally, the mechanical lock seat further includes a guide plate, a guide sealing plate, and a slider. The slider is fixedly connected to the lock tongue and can slide within a groove formed between the guide plate and the guide sealing plate. The guide plate and the guide sealing plate are fixed to the side of the lock frame by bolts.

[0018] Optionally, the actuator includes an armature bracket for fixing the armature to the movable door; the switch body includes an electromagnet bracket for fixing the electromagnet to the door frame.

[0019] Optionally, the mechanical lock hole includes a lock hole plate and a lock hole mounting base, which are fixed to the door frame by bolts.

[0020] The beneficial effects of this utility model are as follows:

[0021] This utility model embodiment combines electromagnetic door locks and mechanical door locks. After the equipment is powered on, the main controller supplies power to the electromagnet coil through a time relay. The electromagnet generates magnetic attraction. When the movable door is closed, the actuator is close to the switch body, and the electromagnet automatically attracts the armature to achieve electromagnetic locking. When the movable door is closed, the lock tongue is inserted into the mechanical lock hole. The operator can also achieve mechanical locking by moving the sliding part and engaging the locking edge of the lock tongue with the mechanical lock hole. This prevents the movable door from being unlocked and opening automatically in the event of a power outage.

[0022] To open the sliding door, the operator triggers the door opening switch to send an opening signal to the main controller. The main controller then controls the time relay to disconnect, cutting off the power supply to the electromagnet coil. The electromagnet loses its magnetic force, and the electromagnetic lock is released. To open the sliding door, the operator also moves the sliding component to disengage the latch from the mechanical lock hole, thus releasing the mechanical lock. The sliding door can then be opened automatically. If the sliding door is not opened after this, the time relay will close after a set delay, and the electromagnetic door lock will lock again.

[0023] When applied to elevator car doors, this combination smart door lock can ensure normal operation whether the elevator is working normally or in the event of a power outage. When the elevator is ascending or descending, the main controller of the combination smart door lock can determine that the equipment is in operation based on other input signals and cannot be released. This avoids the risk of operators accidentally opening the door while the elevator is running. When the door opening switch is triggered, the electromagnetic door lock in the combination smart door lock is released. After a delay, the electromagnetic door lock is locked again. This allows for flexible adjustment of the electromagnetic door lock release time according to actual operating habits. Attached Figure Description

[0024] Figure 1 This is a schematic diagram illustrating the structure and installation location of an embodiment of a combined smart door lock;

[0025] Figure 2 This is a schematic diagram of an electromagnetic door lock structure;

[0026] Figure 3 This is the electrical connection diagram of the electromagnetic door lock;

[0027] Figure 4 This is the electrical schematic diagram of an electromagnetic door lock;

[0028] Figure 5 This is a schematic diagram of a mechanical door lock structure;

[0029] Figure 6 This is a schematic diagram of the AA section of a mechanical door lock;

[0030] Figure 7 This is a schematic diagram of the exploded structure of a mechanical door lock;

[0031] Figure 8 This is a schematic diagram of the structure of some components of a mechanical door lock;

[0032] Figure 9 This is a schematic diagram illustrating the principle of how mechanical and electromagnetic door locks jointly control the elevator car door.

[0033] In the picture:

[0034] 100. Electromagnetic door lock; 110. Actuator; 111. Armature; 112. Armature bracket; 113. Bolt; 114. Bolt; 120. Switch body; 121. Electromagnet; 122. Status switch; 123. Electromagnet bracket; 124. Bolt; 125. Bolt; 130. Control module; 131. Main controller; 132. Door opening switch; 133. Time relay; 200. Mechanical door lock; 210. Mechanical lock base; 211. Lock tongue; 21 2. Lock plate; 2121. First panel; 2122. First slide button; 2123. Bolt; 2124. Bolt; 2125. First slot; 2126. Second slot; 213. Lock frame; 2131. Second panel; 2132. Second slide button; 2133. Protrusion; 214. Guide groove plate; 215. Guide sealing plate; 216. Slider; 217. Bolt; 220. Mechanical lock hole; 221. Lock hole plate; 222. Lock hole mounting base; 223. Bolt. Detailed Implementation

[0035] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0036] The terms "first," "second," and "third" used in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number or order of the indicated technical features. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship or movement of components in a specific posture (as shown in the accompanying drawings). It should be noted that when a component is referred to as "fixed to," "set on," or "connected to" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component, or there may be one or more intermediate components present simultaneously. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0037] like Figures 1-9 As shown, in order to solve the common problems in the prior art, this utility model proposes a combined intelligent door lock embodiment, which can improve the safety and reliability of the elevator door lock. When the equipment experiences a sudden power outage, it can ensure the normal locking and opening of the elevator car door without causing operational inconvenience.

[0038] Specifically, see Figures 1 to 8 A combination smart door lock includes an electromagnetic door lock 100 and a mechanical door lock 200. The electromagnetic door lock 100 includes an actuator 110 disposed on the movable door, a switch body 120 disposed on the door frame, and a control module 130 connected to the switch body 120. The actuator 110 is provided with an armature 111, and the switch body 120 is provided with an electromagnet 121. The electromagnet 121 is used to generate magnetic attraction to engage the armature 111 to achieve electromagnetic locking. The control module 130 includes a main controller 131 and an opening switch 132 and a time relay 133 connected to the main controller 131. The main controller 131 controls the power supply to the coil of the electromagnet 121 through the time relay 133. The mechanical door lock 200 includes a mechanical lock base 210 disposed on the movable door and a mechanical lock hole 220 disposed on the door frame. The mechanical lock base 210 is provided with a sliding component and a lock tongue 211 with a locking edge. The lock tongue 211 can be inserted into the mechanical lock hole 220 when the movable door is closed. The sliding component is fixedly connected to the lock tongue 211 and can drive the lock tongue 211 to move so that its locking edge engages with the mechanical lock hole 220 to achieve mechanical locking.

[0039] The working principle of this utility model embodiment is as follows:

[0040] After the equipment is powered on, the main controller 131 supplies power to the coil of electromagnet 121 through time relay 133. Electromagnet 121 generates magnetic attraction. When the movable door is closed, actuator 110 is close to switch body 120, and electromagnet 121 automatically attracts armature 111 to achieve electromagnetic locking. When the movable door is closed, lock tongue 211 is inserted into mechanical lock hole 220. The operator can also achieve mechanical locking by moving the sliding part and engaging the locking edge of lock tongue 211 with mechanical lock hole 220 to prevent the movable door from being unlocked and opening automatically in the event of a power failure.

[0041] To open the movable door, the operator triggers the door opening switch 132 to send an opening signal to the main controller 131. The main controller 131 then controls the time relay 133 to disconnect, cutting off the power supply to the electromagnet 121 coil. The electromagnet 121 loses its magnetic force, and the electromagnetic lock is released. To further open the movable door, the operator can also move the sliding component to disengage the latch of the bolt 211 from the mechanical lock hole 220, thus releasing the mechanical lock. The movable door can then be opened automatically. If the movable door is not subsequently opened, after a set delay period, the time relay 133 will close, and the electromagnetic door lock 100 will lock again.

[0042] When applied to the car door of an elevator, this utility model embodiment ensures normal operation of the combined smart door lock regardless of whether the elevator is working normally or encounters a power outage. When the elevator is ascending or descending, the main controller of the combined smart door lock can determine that the device is in operation based on other input signals and cannot be released, thus avoiding the risk of operators accidentally opening the door while the elevator is running. When the door opening switch is triggered, the electromagnetic door lock in the combined smart door lock is released, and after a delay, the electromagnetic door lock is locked again. This allows for flexible adjustment of the electromagnetic door lock release time according to actual operating habits.

[0043] In some embodiments, see Figure 3 , Figure 4 The main controller 131 is a PLC. In specific implementations, the PLC can also be connected to other control devices, such as a host computer, the elevator motor, etc., to achieve linkage control. This ensures that when the elevator is rising or falling, the main controller of the combined smart door lock can determine that the device is in operation based on other input signals and cannot be released. This avoids the risk of operators accidentally opening the door while the elevator is running.

[0044] In some embodiments, see Figure 3 , Figure 4 The time-delayed normally open contact D-KT of the time relay 133 is connected in series in the power supply circuit of the coil B-YL of the electromagnet 121, and the control coil C-KT of the time relay 133 is connected in series between the electromagnet control terminal (0.3 terminal) of the PLC and the negative power supply terminal COM.

[0045] Upon power-up, the PLC's electromagnet control terminal (terminal 0.3) provides a high level to the control coil C-KT of time relay 133. Time relay 133's control coil C-KT is energized, and the normally open contact D-KT of time relay 133 remains closed after the delayed closing. Electromagnet 121's coil B-YL is connected to the power supply, generating magnetic attraction. When unlocking is required, the PLC's electromagnet control terminal (terminal 0.3) provides a low level to time relay 133's control coil C-KT. During this period, time relay 133's normally open contact D-KT remains open, electromagnet 121's coil B-YL is disconnected from the power supply, and the electromagnetic lock is released. When electromagnetic locking is subsequently required, the PLC's electromagnet control terminal (terminal 0.3) returns to a high level, and time relay 133's normally open contact D-KT remains open until the set time expires, then closes again. By setting the delay of the time relay 133, the release time of the electromagnetic door lock can be flexibly adjusted according to actual operating habits.

[0046] In practice, the PLC and the electromagnet coil B-YL can be powered by the same power supply (+24V, COM).

[0047] In some embodiments, see Figure 3 , Figure 4 The door switch 132 consists of two normally closed contact switches (SB1, SB2) connected in series between the PLC's switch signal input terminal (0.4 terminal) and the positive power supply terminal +24V. When either normally closed contact switch (SB1 or SB2) is opened due to external force, the PLC's switch signal input terminal (0.4 terminal) will no longer be at a high level, and the PLC will receive the switch signal.

[0048] In practice, the two normally closed contact switches (SB1, SB2) can be set in different locations, such as inside and outside the elevator car, respectively, so that the electromagnetic lock can be released by the door opening switch 132 regardless of whether the staff is outside or inside the elevator car.

[0049] In some embodiments, see Figure 2 and Figure 3 The switch body 120 also includes a status switch 122. When the electromagnet 121 and armature 111 are attracted, the status switch 122 will send an electromagnet attraction signal to the main controller 131 for system logic control. It should be noted that setting a status switch in the electromagnetic lock to output the electromagnet attraction state is prior art and will not be described in detail here.

[0050] In specific implementation, see Figure 4The status switch B-YT is connected in series between the electromagnet status receiver (0.7 terminal) of the PLC and the positive power supply terminal +24V. When electromagnet 121 and armature 111 are attracted, the status switch B-YT is closed.

[0051] In some embodiments, see Figure 1 , Figure 2 The actuator 110 includes an armature bracket 112 for fixing the armature 111 to the movable door; the switch body 120 includes an electromagnet bracket 123 for fixing the electromagnet 121 to the door frame.

[0052] In some embodiments, the armature 111 can be fixed to the armature bracket 112 by a combination of bolts 113 and nuts, and the armature bracket 112 can be fixed to the movable door by bolts 114; the electromagnet 121 can be fixed to the electromagnet bracket 123 by a combination of bolts 124 and nuts, and the electromagnet bracket 123 can be fixed to the door frame by bolts 125.

[0053] In some embodiments, see Figure 1 , Figures 5 to 8 The mechanical lock base 210 includes a lock plate 212 and a lock frame 213 fixed to the lock plate 212. The lock plate 212 is provided with a first panel 2121, and the lock frame 213 is provided with a second panel 2131. The sliding component includes a first slide button 2122 installed on the first panel 2121 and a second slide button 2132 installed on the second panel 2131. The first slide button 2122, the second slide button 2132 and the lock tongue 211 are fixedly connected.

[0054] In practice, the first panel 2121 and the second panel 2131 can be installed on the outside and inside of the elevator car's movable door, respectively. Regardless of whether the staff is outside or inside the elevator car, they can set or release the mechanical lock by operating the sliding parts.

[0055] In some embodiments, see Figure 1 , Figures 5 to 8 The locking plate 212 and the locking frame 213 can be fixed by bolts 2123, and the locking plate 212 can be fixed to the movable door by bolts 2124.

[0056] In some embodiments, see Figure 1 , Figures 5 to 8 The first sliding button 2122 has a first slot 2125 and a second slot 2126, and the second sliding button 2132 has a protrusion 2133, which is inserted into the first slot 2125 for fixation. The root of the locking tongue 211 is inserted into the second slot 2126 for fixation. In a specific implementation, the locking tongue 211 can be moved up and down by sliding the first sliding button 2122 or the second sliding button 2132.

[0057] In some embodiments, see Figure 1 , Figures 5 to 8 The sliding component also includes a guide plate 214, a guide sealing plate 215, and a slider 216. The slider 216 is fixedly connected to the latch 211 and can slide within the groove formed between the guide plate 214 and the guide sealing plate 215. The guide plate 214 and the guide sealing plate 215 are fixed to the side of the lock frame 213 by bolts 217. The guide plate 214, the guide sealing plate 215, and the slider 216 limit the sliding of the latch 211.

[0058] In some embodiments, see Figure 1 , Figures 5 to 8 The mechanical lock hole 220 includes a lock hole plate 221 and a lock hole mounting base 222, which are fixed to the door frame by bolts 223.

[0059] This utility model's combined smart door lock embodiment includes two parts: a mechanical door lock and an electromagnetic door lock. The control principle is described below. Figure 9 As shown, when the elevator is operating normally, both mechanisms work together to lock and release. In the event of a power outage, the mechanical door lock can be used temporarily for locking and releasing. Therefore, this smart door lock system ensures safety and reliability during normal use, and also provides emergency locking and releasing in the event of a power outage, thus better protecting the safety of operators.

[0060] This utility model is not limited to the above-mentioned optional embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in its shape or structure, any technical solution that falls within the scope of the claims of this utility model shall be protected by this utility model.

Claims

1. A combination smart door lock, characterized in that, Including electromagnetic door locks and mechanical door locks; The electromagnetic door lock includes an actuator installed on the movable door, a switch body installed on the door frame, and a control module connected to the switch body. The actuator is provided with an armature, and the switch body is provided with an electromagnet. The electromagnet is used to generate magnetic attraction to engage the armature to achieve electromagnetic locking. The control module includes a main controller and an opening switch and a time relay connected to the main controller. The main controller controls the power supply of the electromagnet coil through the time relay. The mechanical lock includes a mechanical lock base disposed on the movable door and a mechanical lock hole disposed on the door frame. The mechanical lock base is provided with a sliding component and a lock tongue with a locking edge. The lock tongue can be inserted into the mechanical lock hole as the movable door is closed. The sliding component is fixedly connected to the lock tongue and can drive the lock tongue to move so that its locking edge engages with the mechanical lock hole to achieve mechanical locking.

2. The combined smart door lock according to claim 1, characterized in that, The main controller is a PLC.

3. A combined smart door lock according to claim 2, characterized in that, The time relay's delayed-closing normally open contact is connected in series in the electromagnet's power supply circuit, and the time relay's control coil is connected in series between the electromagnet control terminal and the power supply negative terminal of the main controller.

4. A combined smart door lock according to claim 2, characterized in that, The door opening switch consists of two normally closed contact switches connected in series between the switch signal input terminal and the positive power supply terminal of the main controller.

5. A combined smart door lock according to claim 2, characterized in that, The switch body is also provided with a status switch for sending an electromagnet engagement signal to the main controller; the status switch is connected in series between the electromagnet status receiving terminal and the power supply positive terminal of the main controller, and the status switch is closed when the electromagnet engages with the armature.

6. A combined smart door lock according to claim 1, characterized in that, The mechanical lock base includes a lock plate and a lock frame fixed to the lock plate. The lock plate has a first panel and the lock frame has a second panel. The sliding component includes a first slide button installed on the first panel and a second slide button installed on the second panel. The first slide button, the second slide button and the lock tongue are fixedly connected.

7. A combined smart door lock according to claim 6, characterized in that, The first slide button has a first slot and a second slot, the second slide button has a protrusion, the protrusion is inserted into the first slot for fixation, and the root of the latch is inserted into the second slot for fixation.

8. A combined smart door lock according to claim 6, characterized in that, The mechanical lock seat also includes a guide plate, a guide sealing plate, and a slider. The slider is fixedly connected to the lock tongue and can slide in the groove formed between the guide plate and the guide sealing plate. The guide plate and the guide sealing plate are fixed to the side of the lock frame by bolts.

9. A combined smart door lock according to claim 1, characterized in that, The actuator includes an armature bracket for fixing the armature to the movable door; the switch body includes an electromagnet bracket for fixing the electromagnet to the door frame.

10. A combined smart door lock according to claim 1, characterized in that, The mechanical lock hole includes a lock hole plate and a lock hole mounting base, which are fixed to the door frame by bolts.

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