Roller shutter lock structure

Abstract

This invention provides a roller shutter door lock structure, comprising a lock body fixed to the roller shutter door, an electromagnetic unit fixed to the lock body, and an armature disposed on the ground in cooperation with the electromagnetic unit. The roller shutter door can be locked or unlocked by the attraction between the electromagnetic unit and the armature. It also includes a first connecting unit fixed to the door frame of the roller shutter door and a second connecting unit fixed to the roller shutter door. Wiring terminals are respectively provided on the first and second connecting units. The wiring terminals on the first and second connecting units can be connected or separated, so that when the roller shutter door is locked, an external power source can supply power to the electromagnetic unit through the wiring terminals. The roller shutter door structure of this invention allows for convenient power supply to the electromagnetic unit without the need for a ground box, thereby reducing safety hazards.

Description

Technical Field

[0001] This invention relates to the field of roller shutter door technology, and in particular to a roller shutter door lock structure. Background Technology

[0002] Roller shutters are a common type of door on the market. They are fixed to the ground by a roller shutter lock. A roller shutter lock generally includes a lock body fixed to the roller shutter and one or two floor boxes arranged on the ground. Because the floor boxes have grooves that are recessed into the ground, not only are debris easy to fall into the floor boxes and difficult to clean, but the floor boxes also pose certain safety hazards. For example, when wearing high heels, the high heels may accidentally fall into the grooves when passing through the floor boxes, causing an ankle sprain. Summary of the Invention

[0003] In view of this, the present invention aims to propose a roller shutter door lock structure that can eliminate the need for a floor box, thereby reducing safety hazards.

[0004] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0005] A roller shutter door lock structure, the roller shutter door lock structure comprising:

[0006] The lock body is fixedly installed on the roller shutter door;

[0007] The first locking assembly includes an electromagnetic unit fixed on the lock body and an armature disposed on the ground in cooperation with the electromagnetic unit. The roller shutter can be locked due to the attraction between the electromagnetic unit and the armature.

[0008] The connector assembly includes a first connecting unit fixed to the frame of the roller shutter door and a second connecting unit fixed to the roller shutter door; each of the first and second connecting units is provided with a terminal block, wherein the terminal block on the first connecting unit can be connected to an external power source, and the terminal block on the second connecting unit can be connected to the electromagnetic unit for power supply; when the roller shutter door is locked, the terminal blocks on the first and second connecting units can be connected to each other so that the electromagnetic unit can be powered by an external power source; when the roller shutter door is unlocked, the terminal blocks on the first and second connecting units are separated so that the roller shutter door can be raised and lowered.

[0009] Furthermore, it also includes a second locking assembly, which includes a bolt slidably disposed on the lock body, a transmission unit connected to the bolt, and an electric drive unit and a lock cylinder disposed on the lock body and respectively connected to the transmission unit; through the transmission unit, the bolt slides under the drive of the electric drive unit or the lock cylinder, and due to the sliding, it engages or disengages with the latch fixed on the door frame of the roller shutter, thereby locking or unlocking the roller shutter.

[0010] Furthermore, the transmission unit includes a sun gear, a gear ring, multiple planetary gears meshing with the sun gear and the gear ring, a planetary support rotatably supporting the multiple planetary gears, and a connecting rod hinged between the planetary support and the latch; and the sun gear can be driven to rotate by the lock cylinder, the gear ring can be driven to rotate by the electric drive unit, and the planetary support can drive the latch to slide due to rotation.

[0011] Furthermore, the latches are two located on the door frame on both sides of the roller shutter door, and the latches are two located corresponding to the two latches.

[0012] Furthermore, the stellar gear is fixedly sleeved on the lock cylinder; gear teeth are constructed on the outer periphery of the gear ring, the electric drive unit is a motor, and a drive gear that meshes with the gear teeth is fixedly sleeved on the motor shaft of the motor.

[0013] Furthermore, it also includes a control unit and a detection unit capable of detecting the displacement of the latch; the control unit is connected to the detection unit and the electromagnetic unit respectively, and can receive the detection signal from the detection unit to control the opening and closing of the electromagnetic unit.

[0014] Furthermore, a vibration detection unit and an alarm signal generation unit are connected to the control unit; the vibration detection unit can detect the vibration signal of the roller shutter door, and the control unit can compare the vibration signal with a preset vibration threshold and control the alarm signal generation unit to open or close according to the comparison result.

[0015] Furthermore, a slider is provided on the first connecting unit, the wiring terminal of the first connecting unit is provided on the slider, and an attraction unit is provided between the slider and the second connecting unit. When the roller shutter is locked, the slider can slide due to the attraction of the attraction unit, and the sliding can form a connection between the wiring terminal on the slider and the wiring terminal on the second connecting unit.

[0016] Furthermore, the attraction unit includes a first magnet assembly constructed on the slider and a second magnet assembly fixed on the second connecting unit, and the slider can slide due to the attraction between the first magnet assembly and the second magnet assembly.

[0017] Furthermore, the first magnet group includes a first magnet unit and a second magnet unit arranged at an upper and lower interval, and the second magnet group includes a third magnet unit and a fourth magnet unit arranged at an upper and lower interval; and the second magnet unit and the third magnet unit have the same polarity, and the polarity is opposite to that of the first magnet unit and the fourth magnet unit.

[0018] Compared with the prior art, the present invention has the following advantages:

[0019] The roller shutter door lock structure of this invention features an electromagnetic unit mounted on the roller shutter door and an armature mounted on the ground. A first connecting unit is mounted on the roller shutter door, and a second connecting unit is mounted on the door frame. Terminals are mounted on both the first and second connecting units. Since the terminals of the first and second connecting units can be connected when the roller shutter door is closed, the electromagnetic unit can be easily powered by an external power source. The attraction between the electromagnetic unit and the armature forms the locking mechanism of the roller shutter door. Compared to using a ground box, the armature mounted on the ground does not require a groove, thus avoiding the safety hazards associated with such a groove. Attached Figure Description

[0020] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0021] Figure 1 This is a schematic diagram of the installation structure of the roller shutter door lock structure on the roller shutter door according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the connector assembly described in an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the connector assembly described in an embodiment of the present invention in another state;

[0024] Figure 4 This is a left view of the slider described in an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the second locking component according to an embodiment of the present invention;

[0026] Figure 6 This is an exploded structural diagram of the second locking component according to an embodiment of the present invention.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1-Lock body, 2-First locking assembly, 21-Electromagnetic unit, 22-Armature, 3-Connector assembly, 31-First connecting unit, 311-First housing, 312-Slider, 313-First set of terminals, 314-Guide post, 315-Stop, 316-First permanent magnet, 317-Second permanent magnet, 32-Second connecting unit, 321-Second set of terminals, 322-Third permanent magnet, 323-Fourth permanent magnet, 33-Elastic element, 4-Roller shutter door, 41-Door frame, 5-Second locking assembly, 51-Lock tongue, 511-Drive rod, 512-Extension rod, 52-Transmission unit, 521-Stellar gear, 522-Planetary gear, 523-Gear ring, 524-Planetary support, 525-Connecting rod, 53-Electric drive unit, 54-Lock cylinder. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0030] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] This embodiment relates to a roller shutter door lock structure, see reference. Figure 1 As shown, the roller shutter door lock structure includes a lock body 1 fixed on the roller shutter door 4, and a first locking component 2. The first locking component 2 includes an electromagnetic unit 21 fixed on the lock body 1, and an armature 22 disposed on the ground in cooperation with the electromagnetic unit 21. The roller shutter door 4 can be locked due to the attraction between the electromagnetic unit 21 and the armature 22.

[0032] In addition, the roller shutter door lock structure also includes a connector assembly 3; the connector assembly 3 includes a first connecting unit 31 fixed on the door frame 41 of the roller shutter door 4, and a second connecting unit 32 fixed on the roller shutter door 4; and wiring terminals are respectively provided on the first connecting unit 31 and the second connecting unit 32, and the wiring terminals on the first connecting unit 31 can be connected to an external power source, and the wiring terminals on the second connecting unit 32 can be connected to the electromagnetic unit 21 for power supply; when the roller shutter door 4 is locked, the wiring terminals on the first connecting unit 31 and the second connecting unit 32 can be connected to each other so that the electromagnetic unit 21 can be powered by an external power source; when the roller shutter door 4 is unlocked, the wiring terminals on the first connecting unit 31 and the second connecting unit 32 are separated so that the roller shutter door 4 can be raised.

[0033] In terms of specific structure, refer to Figures 1 to 3As shown, the first connecting unit 31 specifically includes a first housing 311 fixed on the door frame 41, and a slider 312 is provided in the first housing 311. The wiring terminals on the first connecting unit 31 are specifically provided on the slider 312. For ease of explanation, the wiring terminals on the first connecting unit 31 are referred to as the first set of wiring terminals 313, and the wiring terminals on the second connecting unit 32 are referred to as the second set of wiring terminals 321.

[0034] The aforementioned second connection unit 32 specifically includes a fixing block fixed on the roller shutter 4, and a second set of terminals 321 fixed on the fixing block; and an attraction unit is provided between the slider 312 and the fixing block. When the roller shutter 4 is locked, due to the action of the attraction unit, the slider 312 can slide to form a contact between the first set of terminals 313 and the second set of terminals 321, so that the first set of terminals 313 and the second set of terminals 321 can be electrically connected; since the position between the slider 312 and the external power supply only changes slightly, a certain margin is required for the connection between the slider 312 and the external power supply. It should be noted that the first set of terminals 313 and the second set of terminals 321 can not only supply power to the electromagnetic unit 21, but also be used to transmit control signals to the control unit described below.

[0035] In this embodiment, reference Figure 2 and Figure 3 As shown, an elastic element 33 is provided between the slider 312 and the door frame 41. This elastic element 33 can store energy when the slider 312 slides towards the fixed block, and can drive the slider 312 to reset due to its own elastic recovery, that is, drive the slider 312 to separate from the fixed block, so that the roller shutter door 4 can rise. A preferred structure of the slider 312 is shown below. Figure 2 and Figure 3 As shown, a guide post 314 is fixedly installed inside the first housing 311; a stepped hole is provided through the slider 312, the stepped hole specifically includes a large diameter section near the fixed block and a small diameter section connected in series with the large diameter section; and specifically, the small diameter section is sleeved on the guide post 314; a stop block 315 is detachably fixedly provided at the end of the large diameter section, and the aforementioned elastic element 33 is specifically a spring sleeved on the large diameter section and abutting between the stop block 315 and the stepped surface of the stepped hole.

[0036] In this embodiment, the aforementioned attraction unit specifically includes a first magnet assembly fixed to the slider 312 and a second magnet assembly fixed to the fixing block; preferably, referring to Figures 2 to 4As shown, the first magnet group includes a first magnet unit and a second magnet unit arranged at intervals above and below; the second magnet group includes a third magnet unit and a fourth magnet unit arranged at intervals above and below; and the first magnet unit preferably includes two first permanent magnets 316 arranged at intervals on the left and right; the second magnet unit preferably includes two second permanent magnets 317 arranged at intervals on the left and right; the third magnet unit preferably includes two third permanent magnets 322 arranged at intervals on the left and right; the fourth magnet unit preferably includes two fourth permanent magnets 323 arranged at intervals on the left and right. Since it does not affect the understanding, only one arrangement structure of the first permanent magnets 316 and the second permanent magnets 317 is shown in the accompanying drawings of this embodiment. The third permanent magnets 322 and the fourth permanent magnets 323 are respectively arranged on the fixed block opposite to the first permanent magnets 316 and the second permanent magnets 317. In this embodiment, the polarity of the first permanent magnet 316 and the fourth permanent magnet 323 is the same, and opposite to that of the second permanent magnet 317 and the third permanent magnet 322. It should be noted that the polarity of each permanent magnet refers to the polarity of its outer side. Specifically, in this embodiment, the polarity of the first permanent magnet 316 and the second permanent magnet 317 refers to the polarity of the side facing the slider 312; while the polarity of the third permanent magnet 322 and the fourth permanent magnet 323 refers to the polarity of the side facing the fixed block.

[0037] When the roller shutter moves downward, the second permanent magnet 317 and the third permanent magnet 322 are initially in opposition. In this embodiment, the polarities of the second permanent magnet 317 and the third permanent magnet 322 are set to be the same. This allows the slider 312 to avoid premature sliding out due to the repulsion between the second permanent magnet 317 and the third permanent magnet 322, thus preventing wear on the slider 312. When the roller shutter moves to the bottom, the first permanent magnet 316 and the third permanent magnet 322 have opposite polarities, and the second permanent magnet 317 and the fourth permanent magnet 323 have opposite polarities. This attracts the slider 312 to move towards the fixed block, thereby establishing electrical conduction between the first set of terminals 313 and the second set of terminals 321.

[0038] Since the external power supply may fail due to unexpected power outages; in this embodiment, reference is made to... Figure 1 and Figure 5 As shown, the roller shutter door lock structure also includes a second locking assembly 5, which includes a latch 51 slidably disposed on the lock body 1, a transmission unit 52 connected to the latch 51, and an electric drive unit 53 and a lock cylinder 54 disposed on the lock body 1 and respectively connected to the transmission unit 52. Through the transmission unit 52, the latch 51 slides under the drive of the electric drive unit 53 or the lock cylinder 54, and engages or disengages with the latch fixed on the door frame 41 due to the sliding, so as to lock or unlock the roller shutter door.

[0039] In this embodiment, reference Figure 5As shown, the transmission unit 52 includes a sun gear 521, a gear ring 523, a plurality of planetary gears 522 meshing with the sun gear 521 and the gear ring 523, a planetary support 524 rotatably supporting the plurality of planetary gears 522, and a connecting rod 525 hinged between the planetary support 524 and the locking tongue 51; and the sun gear 521 can be driven to rotate by the lock cylinder 54, the gear ring 523 can be driven to rotate by the electric drive unit 53, and the planetary support 524 can drive the locking tongue 51 to slide due to rotation.

[0040] In terms of specific structure, refer to Figure 1 , Figure 5 and Figure 6 As shown, the aforementioned stellar gear 521 is fixedly sleeved on the lock cylinder 54. Gear teeth are constructed on the outer circumference of the gear ring 523. The aforementioned electric drive unit 53 is a motor, and a drive gear that meshes with the gear teeth is fixedly sleeved on the motor shaft. It should be noted that, for ease of arrangement, one or more intermediate transmission gears can also be arranged between the drive gear and the gear ring 523. The lock cylinder 54 can rotate by receiving the unlocking action of a matching key, thereby driving the stellar gear 521 to rotate.

[0041] By configuring the above structure, in this embodiment, when the mechanical key is not used, the sun gear 521 remains stationary, while the gear ring 523 can rotate under the drive of the motor, inputting power to the planetary gear system 522 to drive the multiple planetary gears 522 and the planetary support 524 to rotate. When the mechanical key is used, since the motor does not rotate, that is, the gear ring 523 remains stationary, power can be input from the sun gear 521, which can similarly drive the multiple planetary gears 522 and the planetary support 524 to rotate.

[0042] In this embodiment, reference Figure 6 As shown, the connecting rod 525 is arc-shaped, and its two ends are hinged to the latch 51 and the planetary support 524, respectively, so that the rotation of the planetary support 524 can drive the latch 51 to slide. The latch 51, due to its sliding motion, can engage or disengage with the latch fixed to the door frame 41, thereby locking or unlocking the roller shutter door. It should be noted that in this embodiment, the latch 51 specifically includes a drive rod 511 hinged to the connecting rod 525, and an extension rod 512 connected in series with the drive rod 511, specifically, the extension rod 512 can engage or disengage with the latch. (See also...) Figure 1 and Figure 6 As shown, in order to achieve better performance, especially better locking effect, the aforementioned locking tongues 51 are symmetrically arranged on the left and right sides of the lock body 1.

[0043] In this embodiment, the structure of the roller shutter door 4 also includes a control unit and a detection unit that can detect the displacement of the locking tongue 51; and the control unit is connected to the detection unit and the electromagnetic unit 21 respectively, and can receive the detection signal of the detection unit to control the opening and closing of the electromagnetic unit 21, and the control unit is also connected to the aforementioned electric drive unit 53.

[0044] By setting the above-mentioned control unit, the electric gate lock structure of this embodiment has the following functions;

[0045] When closing the door: The control unit first controls the electromagnetic unit 21 to open, and the electromagnetic unit 21 is attracted to the ground armature 22. Then, the control unit controls the electric drive unit 53 to rotate forward according to the detection signal of the detection unit, which drives the latch 51 to extend and engage with the latch on the door frame 41, thus completing the double locking of the roller shutter door 4.

[0046] When the door is opened: The control unit controls the electromagnetic unit 21 to close, causing the electromagnetic unit 21 to separate from the ground armature 22. And according to the detection signal of the detection unit, the electric drive unit 53 is controlled to reverse, causing the latch 51 to retract and disengage from the latch on the door frame 41. At this time, the roller shutter door 4 can be lifted.

[0047] During a power outage, the lock cylinder 54 can be turned with a key to open and close the lock. When the power is restored, the control unit can control the electromagnetic unit 21 to open or close based on the detection signal from the detection unit. For example, if the detection unit detects that the bolt 51 is in the extended state, the control unit can control the electromagnetic unit 21 to open. If the detection unit detects that the bolt 51 is in the retracted state, the electromagnetic unit 21 will remain closed.

[0048] In this embodiment, the detection unit may include, for example, a magnet fixed to the latch 51 and a displacement sensor fixed to the lock body 1 that can sense the displacement of the magnet. This displacement sensor can be an existing product and will not be described in detail here.

[0049] In this embodiment, a power supply that can supply power to the control unit is provided on the lock body 1. The power supply is specifically a rechargeable battery. When the first set of wiring terminals 313 and the second set of wiring terminals 321 are connected, an external power source can supply power to the power supply.

[0050] In addition, in this embodiment, a vibration detection unit and an alarm signal generation unit are also provided connected to the control unit. The vibration detection unit can detect the vibration signal of the roller shutter door 4, and the control unit can compare the vibration detection result with a preset vibration threshold, and control the alarm signal generation unit to open or close according to the comparison result. The vibration signal can be, for example, vibration frequency and / or vibration amplitude, and correspondingly, the vibration threshold is also vibration frequency and / or vibration threshold. The alarm signal generation unit can be, for example, a sound alarm device (i.e., a device that emits an alarm sound), a light alarm device (i.e., a device that emits an alarm light), or a device that emits both an alarm sound and an alarm light simultaneously.

[0051] By setting up the vibration detection unit and alarm signal generation unit, abnormalities in the roller shutter door 4 can be quickly detected for fault repair.

[0052] In summary, the roller shutter door lock structure of this embodiment eliminates the need for a ground box, reducing safety hazards. Furthermore, the connector assembly 3 facilitates the supply of high-current power to the electromagnetic unit 21. In addition, the roller shutter door lock structure of this embodiment combines the functions of an electromagnetic lock and a mechanical lock, providing high security.

Claims

1. A roller shutter door lock structure, characterized in that... include: The lock body (1) is fixed on the roller shutter door (4); The first locking assembly (2) includes an electromagnetic unit (21) fixed on the lock body (1) and an armature (22) disposed on the ground in cooperation with the electromagnetic unit (21). The roller shutter (4) can be locked due to the attraction between the electromagnetic unit (21) and the armature (22). The connector assembly (3) includes a first connecting unit (31) fixed on the door frame (41) of the roller shutter (4) and a second connecting unit (32) fixed on the roller shutter (4); and wiring terminals are respectively provided on the first connecting unit (31) and the second connecting unit (32); and the wiring terminals on the first connecting unit (31) can be connected to an external power source, and the wiring terminals on the second connecting unit (32) can be connected to the electromagnetic unit (21) for power supply; when the roller shutter (4) is locked, the wiring terminals on the first connecting unit (31) and the second connecting unit (32) can be connected to each other so that the electromagnetic unit (21) can be powered by an external power source; When the roller shutter (4) is unlocked, the wiring terminals on the first connecting unit (31) and the second connecting unit (32) are separated, so that the roller shutter (4) can be raised and lowered; A slider (312) is provided on the first connecting unit (31), and the wiring terminal of the first connecting unit (31) is provided on the slider (312). An attraction unit is provided between the slider (312) and the second connecting unit (32). When the roller shutter (4) is locked, the slider (312) can slide due to the attraction of the attraction unit, and the sliding can form a connection between the wiring terminal on the slider (312) and the wiring terminal on the second connecting unit (32). The attraction unit includes a first magnet assembly constructed on the slider (312) and a second magnet assembly fixed on the second connecting unit (32), the slider (312) sliding due to the attraction between the first magnet assembly and the second magnet assembly; The first magnet group includes a first magnet unit and a second magnet unit arranged vertically at intervals; the second magnet group includes a third magnet unit and a fourth magnet unit arranged vertically at intervals; and the second magnet unit and the third magnet unit have the same polarity, which is opposite to the polarity of the first magnet unit and the fourth magnet unit. The roller shutter door lock structure also includes a second locking assembly (5), which includes a latch (51) slidably disposed on the lock body (1), a transmission unit (52) connected to the latch (51), and an electric drive unit (53) and a lock cylinder (54) disposed on the lock body (1) and respectively connected to the transmission unit (52); the latch (51) slides under the drive of the electric drive unit (53) or the lock cylinder (54) through the transmission unit (52), and engages or disengages with the latch fixed on the door frame (41) of the roller shutter door (4) due to the sliding, so as to lock or unlock the roller shutter door (4); The transmission unit (52) includes a star gear (521), a gear ring (523), a plurality of planetary gears (522) meshing with the star gear (521) and the gear ring (523), a planetary support (524) rotatably supporting the plurality of planetary gears (522), and a connecting rod (525) hinged between the planetary support (524) and the latch (51); and the star gear (521) can be driven to rotate by the lock cylinder (54), the gear ring (523) can be driven to rotate by the electric drive unit (53), and the planetary support (524) can drive the latch (51) to slide due to rotation; The roller shutter door lock structure also includes a control unit and a detection unit that can detect the displacement of the latch (51); the control unit is connected to the detection unit and the electromagnetic unit (21) respectively, and can receive the detection signal of the detection unit to control the opening and closing of the electromagnetic unit (21).

2. The roller shutter door lock structure according to claim 1, characterized in that: The latches are two on the door frame (41) on both sides of the roller shutter (4), and the latches (51) are two corresponding to the two latches.

3. The roller shutter door lock structure according to claim 1, characterized in that: The stellar gear (521) is fixedly sleeved on the lock core (54); gear teeth are constructed on the outer periphery of the gear ring (523); the electric drive unit (53) is a motor, and a drive gear that meshes with the gear teeth is fixedly sleeved on the motor shaft of the motor.

4. The roller shutter door lock structure according to claim 1, characterized in that: A vibration detection unit and an alarm signal generation unit are connected to the control unit; the vibration detection unit can detect the vibration signal of the roller shutter (4), and the control unit can compare the vibration signal with a preset vibration threshold and control the opening and closing of the alarm signal generation unit according to the comparison result.

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