TWM498232U - Locking device having powered locking function - Google Patents

Description

Locking device with electric locking function 【0001】

The present invention relates to a door lock with an electric locking function, in particular to an electric drive device capable of driving a door lock through a wired or wireless control device to actuate the door lock, thereby further causing the door lock to be mounted on the outside of the door. The handle of the device is incapable of operating the latch of the latching device to retract to the unlocking position.

【0002】

A commercially available door lock is provided with a latching device having a latching head in the middle of the door, and two latching members for driving the latching device are respectively retracted to the unlatched position on both sides of the door The operating device, in addition, the space partitioned by the door is defined as an outdoor side, and a lock core is additionally installed, so that by locking the latch device, the operating device located outside can be prevented from controlling the latch of the latch device. The retraction is displaced to the unlatching position, but the operating device located inside the chamber can still operate the latching device of the latching device to be retracted to the unlatching position, so that the access control can be manually controlled.

[0003]

However, with the advancement of technology, many access control regulations will be combined with electronic anti-theft or access control systems, that is, the door lock needs to be able to cooperate with the anti-theft or access control system and return the status of the door lock to the anti-theft or access control system, traditional mechanical The door lock cannot lock the door through wireless or wired control. For this reason, the manufacturer has developed a door lock that uses a solenoid valve to interlock the mechanism inside the latch device to achieve the locking function, but the door lock problem using the solenoid valve Therefore, when the power supply system is powered off, the door lock may be changed from the locked state to the unlocked state, or from the unlocked state to the locked state. In detail, it is assumed that the door lock is assembled to generate a suction force when the solenoid valve is energized to generate a suction force. In the locked state, the door lock should remain locked. The power supply system must continuously supply power to the solenoid valve, so that the solenoid valve can maintain the suction force to maintain the locked state of the door lock. Therefore, in such a state, if a power failure occurs. , the door lock will change to the unlocked state because the solenoid valve cannot generate suction, or the door lock is assembled into the electromagnetic When the suction force generated by energizing the unlocked state, if a power failure occurs, since the door will not produce a suction solenoid valve changes to a locked state, so the influence on the access control may be undesirable.

[0004]

In order to solve the problem, the present invention provides a latching device with an electric locking function, comprising: a lock housing, comprising a chamber, a latching head slidably received in the housing of the lock housing, the latch head being laterally Displacement between an upper latching position extending beyond the lock housing and an unlatched position retracted into the lock housing, a latching mechanism pivotally disposed within the housing of the lock housing, the unlatching mechanism including the latching mechanism a linkage portion of the linkage mechanism, the linkage portion of the unlatching mechanism pivots between a release position and a pressing position, and is fixed to a body in the housing of the lock case. The base body includes a track and a space communicating with the track a slot slidably received in a track of the base body, the lock block being constrained to be displaced between the forward position of the track in the lateral direction near the unlatching mechanism and a retracted position away from the unlatching mechanism, the axis The rod is fixed in parallel to the groove of the lock block, and is slidably sleeved on a first slider on the shaft. The first slider is limited to the shaft and is located in the center of the pocket along the lateral direction. And a displacement between a non-intermediate position that is not in the center of the pocket, a first a first spring and a second compression spring sleeved on the shaft, the first slider is located between the first and second compression springs, and the first and second compression springs are the first slider An electric drive device is fixed in the intermediate position and fixed in the cavity of the seat body. The electric drive device comprises a drive shaft, and the drive shaft comprises a threaded section at the center thereof, and the drive shaft is controlled to be rotated or reversed, and a second sliding block of the driving shaft, the second sliding block includes a screw hole, the screw hole of the second sliding block is screwed with the threaded portion of the driving shaft, and a linking piece includes a first piece combined with the first sliding block a portion and a second portion combined with the second slider.

[0005]

When the latch is in the upper latch position and the unlatching mechanism is pivoted from the release position to the pivot position, the latch is displaced from the upper latch position to the unlatched position.

[0006]

When the unlatching mechanism is in the pressed position, the latch is in the unlatched position.

【0007】

When the drive shaft rotates forward, the second slider, the linkage piece and the first slider are displaced in a direction close to the locking mechanism.

[0008]

When the drive shaft is reversed, the second slider, the linkage piece and the first slider are displaced in a direction away from the locking mechanism.

【0009】

When the unlatching mechanism is in the release position, the drive shaft is rotated forward causing the lock block to be displaced from the retracted position to the advanced position.

[0010]

When the unlatching mechanism is in the pressed position, the lock block is blocked by the unlatching mechanism, and the drive shaft is rotated forward to cause the first slider to compress the first compression spring from the intermediate position to the non-intermediate position, allowing the lock block to remain in the retracted position.

[0011]

When the lock block is in the retracted position, the lock block is not mated with the unlatching mechanism, allowing the unlatching mechanism to pivot from the release position to the resisted position.

[0012]

When the lock block is in the advanced position, the lock block is engaged with the unlatch mechanism, causing the unlatching mechanism to be displaced from the release position to the pressed position.

[0013]

When the lock block is in the advanced position, the drive shaft is reversed, causing the lock block to be displaced from the advanced position to the reverse position.

[0014]

The locking mechanism of the present invention does not change the original setting state because the power supply system cannot continuously supply power, that is, the locking mechanism is not caused by a sudden power failure regardless of whether the latch device is set to be locked or unlocked. Changing the locked or unlocked state of the latch mechanism is advantageous for access control.

[0015]

In addition, the locking mechanism allows misoperation, that is, when the lock block cannot be displaced, the motor is still allowed to actuate to drive the drive shaft to rotate and the first and second sliders are laterally displaced, thereby preventing the motor from being damaged by the resistance and being damaged. . In addition, when the drive shaft rotates forward but the lock block is blocked and held in the retracted position, since the first compression spring is compressed, after the factor blocking the lock block disappears (for example, after the handle located outside is released), the first compression spring will Immediately, the bias lock block is displaced from the retracted position to the forward position, so that the problem that the door lock is not surely set to the locked state due to an erroneous operation can be avoided.

[0016]

Wherein the lock block comprises a wide portion and a narrow portion, the wide portion comprising two outer surfaces and an end surface between the two outer surfaces, the narrow portion comprising two inner surfaces between the two outer surfaces, the locking groove system Formed on the end face of the wide portion, the lock block further includes a through hole extending from an inner surface to the other inner surface, the wide portion of the lock block is located outside the track of the seat body, the narrow portion is located in the track, and the seat body further includes a first a side surface and a second side surface, the rail and the pocket are formed on the first side, the unlatching mechanism includes a first passive ring and a second passive ring, and a first between the first and second passive rings The first and second passive rings are pivoted together with the first interlocking ring, the first passive ring includes a first convex portion formed on the outer peripheral surface, and the second passive ring includes a first one formed on the outer peripheral surface a convex portion formed on an outer peripheral surface of the first interlocking ring, the lock housing includes a first pivot hole pivotally connected to the first passive ring, and the lock housing further includes a first screw hole aligned with the wide portion of the lock block, Further includes: a cover covering the lock case Closing the chamber, the cover includes a second pivot hole pivotally connected to the second passive ring, the cover further includes a second screw hole aligned with the wide portion of the lock block, and an outer cover fixed on the first side of the base body The distance between the two inner surfaces of the locking block is less than the distance between the bottom surface of the rail and the inner surface of the outer cover, and is slidably received in a guiding block in the perforation of the locking block. Abutting against the bottom surface of the rail and the inner surface of the outer cover respectively, causing the lock block to be displaced between the first position near the side of the lock housing and the second position near the cover along the axial direction of the guide block, and the guiding block Displacement with the lock block in the lateral direction between the forward and reverse positions, a switch screw is selectively screwed to the first screw hole of the lock case or the second screw hole of the cover.

[0017]

When the switching screw is screwed to the first screw hole of the lock case, the switching screw is biased to the second block position, so that the locking groove of the lock block is along the axial direction of the guiding block and the first convex portion of the second passive ring The slit is locked, and the locking groove of the lock block is spaced apart from the first convex portion of the first passive ring in the axial direction of the guide block.

[0018]

When the switching screw is screwed to the second screw hole of the cover, the switching screw is biased to the first position, so that the locking groove of the locking block is cut along the axial direction of the guiding block and the first convex portion of the first passive ring And the locking groove of the locking block is spaced apart from the first convex portion of the second passive ring along the axial direction of the guiding block.

[0019]

When the lock block is in the first position and is displaced from the retracted position to the advanced position, the locking groove of the lock block is engaged with the first convex portion of the second passive ring.

[0020]

When the lock block is in the second position and is displaced from the retracted position to the advanced position, the locking groove of the lock block is engaged with the first convex portion of the first passive ring.

[0021]

The lock block of the locking mechanism can be quickly positioned in the first or second position in conjunction with the indoor and outdoor positions of the installation site of the door lock, and the door lock is extremely convenient when installed.

[0073]

10‧‧‧ Door locks 20‧‧‧Latching devices 22‧‧‧ Locking shells 24‧‧‧ First side 26‧‧‧Second side 28‧‧ Rooms 30‧‧‧ First axis 32‧‧‧ Second axis 34‧‧‧ Third axis 36‧‧‧First positioning post 37‧‧‧Second positioning post 38‧‧‧First pivot hole 39‧‧‧First screw hole 40‧‧‧First joint hole 42‧‧‧Face 44‧‧‧ First hole 46‧‧‧Second hole 48‧‧‧First positioning piece 50‧‧‧Handle 52‧‧‧Connecting piece 54‧‧‧Latch head 55‧‧‧ first Spring 56‧‧‧Second positioning piece 58‧‧‧handle 60‧‧‧Promoting surface 62‧‧‧Safety bolt 63‧‧Return item 64‧‧‧Brocket 65‧‧‧Second spring 66‧‧‧ Link End 68‧‧‧Blocking section 70‧‧‧ Groove 72‧‧‧First torsion spring 74‧‧‧First arm 76‧‧‧Second arm 78‧‧‧ Positioning plate 80‧‧‧First fixing hole 82 ‧‧‧Second fixing hole 84‧‧‧ engaging part 85‧‧‧ shaft barrel 86‧ ‧ Unlatch mechanism 88‧‧‧First passive ring 90‧‧‧First convex part 92‧‧‧Second convex part 94‧‧ Third protruding part 96‧‧‧Drive hole 98‧‧‧First linkage ring 99‧‧‧ First joint hole 113‧‧‧ Spacer 115‧‧‧ Spacer 117‧‧‧Second linkage ring 131‧‧‧ linkage 133‧‧‧second joint hole 135‧‧‧second passive ring 137‧‧‧First convex part 139‧‧‧Second convex part 151‧‧ Third protruding part 155‧‧‧Bridge arm 157‧‧‧First joint end 159‧‧‧Second joint end 171‧‧‧ Blocking member 173‧‧ ‧ pivoting end 175‧‧ ‧ blocking end 177‧‧‧ linkage arm 179‧‧‧ second torsion spring 191‧‧‧ first foot 193‧‧‧ second foot 195‧‧ ‧ unlatch 197‧‧‧ first end 199‧‧ ‧ second end 211‧‧ ‧ pivot 213 ‧ ‧ first sensor 215‧ ‧ second sensor 216‧ ‧ third sensor 217‧ ‧cover 219‧‧‧Second pivot hole 231‧‧‧Second joint hole 233‧‧‧Second screw hole 235‧‧‧Switching screw 237‧‧‧Lock cylinder 239‧‧‧Pass 251‧‧‧Locking mechanism 253 ‧ ‧ ‧ Part 255 ‧ ‧ part 257 ‧ ‧ part 259 ‧ ‧ first side 271 ‧ ‧ second side 273 ‧ ‧ 容 275 ‧ ‧ 277 ‧ ‧ 277 Slot 278‧‧‧Positioning hole 279‧‧‧Positioning groove 291‧‧‧Lock block 293‧‧ Wide part 294‧‧‧Outer surface 295‧‧‧Narrow part 297‧‧‧Inside surface 299‧‧‧Perforation 311‧ ‧ ‧ End face 313‧‧ ‧ Locking groove 315‧‧ ‧ 槽 317‧‧‧ Guide block 319‧‧‧ First slider 331‧‧‧ Ring groove 333‧‧‧ First compression spring 335‧‧‧ second Compression spring 337‧‧‧ shaft 339‧‧‧ electric drive 351‧‧ ‧ motor 353‧‧‧ reducer 355‧‧‧ drive shaft 35 7‧‧‧Threaded section 358‧‧‧End 359‧‧‧Second slider 371‧‧‧ first side 373‧‧‧ second side 375‧‧ ‧ joint 377‧‧‧ first bump 379‧ ‧Second bump 391‧‧ ‧ screw hole 393‧‧ Third compression spring 395‧‧ Fourth compression spring 397‧‧‧ linkage piece 399‧‧‧ first part 411‧‧‧ second part 413‧‧ Bonding hole 415‧‧ joint groove 417‧‧ ‧ pivoting block 419‧‧ ‧ pivot hole 431‧‧ ‧ outer cover 433 ‧ ‧ second chute 435 ‧ ‧ door 437 ‧ ‧ first side 439 ‧ ‧Second side 451‧‧‧End 453‧‧‧Installation space 455‧‧‧First operating device 457‧‧‧First handle 459‧‧‧First unlatching rod 471‧‧‧With rod 473‧‧‧ Second operating device 475‧‧‧ second handle 477‧‧‧ second unlatching lever 479‧‧‧ bolt 491‧‧‧ door frame

[0022]

Figure 1 is an exploded perspective view of the latch device.
Figure 2 is an exploded perspective view of the creation locking mechanism.
Figure 3 is an exploded perspective view of the door lock.
Fig. 4 is a combined plan view of Fig. 3.
Fig. 5 is a cross-sectional view taken along line 5-5 of Fig. 4.
Figure 5A is a cross-sectional view of the door in a closed position.
Figure 6 is a cross-sectional view taken along line 6-6 of Figure 4.
Figure 7 is a cross-sectional view taken along line 7-7 of Figure 4.
Figure 8 is a cross-sectional view taken along line 8-8 of Figure 5.
Fig. 9 is a view showing a state in which the first handle of the first operating device is pivoted to displace the latch from the upper latch position to the unlatched position in the state shown in Fig. 6.
Fig. 10 is a view showing a state in which the second handle of the second operating device is pivoted to disengage the latch from the upper latch position to the unlatched position in the state shown in Fig. 5A.
Fig. 11 is a state diagram in which the lock block is displaced from the retracted position to the advanced position in the state of Fig. 7.
Fig. 12 is a state diagram in which the lock block is displaced from the retracted position to the advanced position in the state of Fig. 6.
Figure 13 is a state diagram in which the switching screw and the first screw hole of the lock case are screwed to the offset lock block in the second position.
Figure 14 is a state diagram after the lock block in the second position is displaced to the advanced position.
Figure 15 is a diagram showing the first handle of the first operating device being pivoted in the state shown in Figure 7 after the latch is displaced from the advanced position to the retracted position, the drive shaft is rotated forward and the lock block is held in the retracted position and the first slider State diagram after displacement to a non-intermediate position.
Fig. 16 is a view showing a state in which the drive shaft is reversed in the state shown in Fig. 7 to cause the first slider to be displaced to a non-intermediate position.

[0023]

All of the following drawings are merely illustrative of the basic teachings of the present invention, and the extension of the number, position, relationship, and size of the components constituting the preferred embodiment will be explained in the drawings. Post-guided changes are implemented in industry skills. In addition, changes in the exact dimensions and size ratios associated with specific strengths, weights, strengths, and similar requirements are also within the skill of the industry after reading and understanding the teachings of this creation.

[0024]

In the different figures, the same reference numerals are used to designate the same or similar elements; in addition, please refer to the text such as "first", "second", "third", "upper", "lower", "before", "after" "," "inside", "outside", "end", "part", "segment", "horizontal", "vertical", "inward", "outward", "twist", "length", " The "area", "around", "side", "radial", "axial" and the like and the like are only convenient for the viewer to refer to the construction in the drawings and only to help describe the creation.

[0025]

According to the drawings, the door lock 10 of the present invention includes a latch device 20 and a first operating device 455 and a second operating device 473 that can operate the latch device 20. The latch device 20 includes a panel 42 and a combination thereof. In a lock case 22 on one side of the panel, the lock case 22 includes a first face 24 and a second face 26 spaced apart. The lock case 22 further includes a chamber 28 formed on the first face 24, and the lock case 22 is further A first shaft 30, a second shaft 32, a third shaft 34, two first positioning posts 36 and a second positioning post 37 are formed on the bottom surface of the chamber 28, and the lock housing 22 further includes The bottom wall of the chamber 28 extends to a first pivot hole 38 of the second surface 26, a first screw hole 39 and a first coupling hole 40, and the first and second shafts 30, 32 are longitudinally perpendicular to the ground. Located between the first coupling hole 40 and the first pivot hole 38, the third shaft 34 is located between the first and second shafts 30, 32 in the longitudinal direction, and the first pivot hole 38 is located in the transverse direction perpendicular to the longitudinal direction. 30 between the first screw shaft 39, first. The panel 42 includes a first aperture 44 in communication with the chamber 28 and a second aperture 46 in communication with the chamber 28.

[0026]

A cover 217, detachably coupled to the first face 24 of the lock housing 22, closes the chamber 28, and the cover 217 includes a second pivot hole 219 aligned with the first pivot hole 38 of the lock housing 22, and the lock The first screw holes 39 of the shell 22 are arranged in a line and a second screw hole 233, and a second joint hole 231 which is aligned with the first joint hole 40 of the lock case 22.

[0027]

According to the drawings, the latch device 20 further includes a latching head 54 slidably received in the housing 28 of the lock housing 22 and a safety latch 62. A handle 50 is fixed to the end of the latching head 54. A first positioning piece 48 is disposed on the outer periphery, and a first spring 55 is disposed between the outer periphery of the handle 50 and between the latching head 54 and the first positioning piece 48. Further, the outer periphery of the handle 50 is located at the first positioning piece 48. A connecting member 52 is fixed to the rear end. The first positioning piece 48 is fixed to the bottom surface of the chamber 28 of the lock housing 22 and the latch 54 is aligned with the first hole 44 of the panel 42, such that the latch 54, the handle 50 and the engaging member 52 are laterally outward of the extending panel 42. The upper latching position (as shown in Figures 5, 6, and 8) and the displacement of the unlatched position (as shown in Fig. 9) that is retracted into the inside of the panel 42 in the first spring 55 are displaced together.

[0028]

A handle 58 is fixed to the end of the safety latch 62. The handle 58 includes a pushing surface 60 which is inclined in the middle. The outer periphery of the handle 58 is sleeved with a second positioning piece 56. The outer periphery of the handle 58 is located at the safety latch 62 and A second spring 65 is sleeved between the second positioning pieces 56. The second locating tab 56 is secured to the bottom surface of the housing 28 of the lock housing 22 and the safety latch 62 is aligned with the second aperture 46 of the panel 42 with the push surface 60 of the shank 58 positioned laterally rearward of the latch 54 such that the latch 54 When in the upper latch position, the safety latch 62 is biased by the second spring 65 to a position outside the extension panel 42 (as shown in Figures 5, 6, and 8), when the latch 54 is unlatched from the upper latch position Upon displacement, the latch 54 is biased against the push surface 60 of the handle 58 causing the safety latch 62 to retract laterally toward the chamber 28 of the lock housing 22.

[0029]

According to the drawings, the latch device 20 further includes a return member 63 pivotally coupled to the first shaft 30 of the lock housing 22, the return member 63 including a tubular portion 64 and a link formed on the outside of the pivot portion 64. The end 66 is spaced apart from the blocking portion 68 by a circumferential direction of a first pivot axis defined by the first shaft 30. A recess 70 is formed on the outer peripheral surface of the return member 63 and is wound around. The circumferential direction of the first pivot axis is between the joint end 66 and the blocking portion 68. The pivot 64 of the return member 63 is pivotally coupled to the first shaft 30 such that the resetter 63 can pivot about the first pivot axis.

[0030]

The outer periphery of the pivot portion 64 of the return member 63 is sleeved with a first torsion spring 72. The first torsion spring 72 includes a first arm 74 and a second arm 76 abutting against the blocking portion 68 of the return member 63.

[0031]

According to the drawings, the latching device 20 includes a positioning plate 78 and a shaft cylinder 85 received in the housing 28 of the lock housing 22. The positioning plate 78 includes a first fixing hole 80 and a second fixing. The hole 82, the positioning plate 78 further includes an engaging portion 84 formed between the first and second fixing holes 80, 82. The first fixing hole 80 of the positioning plate 78 is sleeved on the pivot portion 64 of the returning member 63, and the shaft The sleeve 85 is sleeved on the second fixing hole 82 of the positioning plate 78 and sleeved on the second positioning post 37 of the lock housing 22, so that the positioning plate 78 cannot rotate, and the first torsion spring 72 is located between the returning member 63 and the positioning plate 78. And the first arm 74 of the first torsion spring 72 is engaged with the engaging portion 84 of the positioning plate 78 such that the second arm 76 of the first torsion spring 72 biases the resetter 63.

[0032]

According to the drawings, the latch device 20 further includes a release mechanism 86 pivotally disposed between the lock housing 22 and the cover 217. The release mechanism 86 includes a first passive ring 88 having the same shape as the first passive ring 88. A second passive ring 135, the unlatching mechanism 86 further includes a first interlocking ring 98, a second linking ring 117, a spacer 113 and an interval coupled between the first and second passive rings 88, 135 Ring 115. The first passive ring 88 includes a first convex portion 90 and a second convex portion 92 formed on the outer peripheral surface, and the first passive ring 88 further includes two third convex portions 94 respectively formed on both sides. The second passive ring 135 includes a first convex portion 137 and a second convex portion 139 formed on the outer peripheral surface, and the second passive ring 135 further includes two third convex portions 151 respectively formed on both sides.

[0033]

One of the third protrusions 94 of the first passive ring 88 is pivotally connected to the first pivot hole 38 of the lock case 22, and one of the third protrusions 151 of the second passive ring 135 is pivotally connected to the second pivot hole 219 of the cover 217. Thus, the first and second passive rings 88, 135 are arranged in a line.

[0034]

The first interlocking ring 98 includes a linking portion 99 that is convexly formed on the outer peripheral surface, and a first coupling hole 117 formed on the linking portion 99. The first linking ring 98 and the other third protruding portion of the second passive ring 135 The second linking ring 117 includes a second coupling hole 131 forming an eccentric position, and the second linking ring 117 is pivotally connected to the other third protruding portion 151 of the first passive ring 88, and the first linking ring 98 is connected. The interlocking portion 99 abuts against the inner surface of the engaging member 52. The spacer ring 115 is received between the first and second interlocking rings 98, 117, and the spacer 113 is received in the spacer ring 115. Thus, the first interlocking ring 98 of the unlatching mechanism 86 has a pivot axis defined by the first and second pivot holes 219 as a pivot center in a release position (as shown in FIGS. 5 and 6) and a pressing position ( When pivoting between the first interlocking ring 98 of the unlatching mechanism 86, the interlocking portion 99 of the first linking ring 98 is displaced in the lateral direction by the connecting member 52, further causing The latch 54 is displaced from the upper latch position to the unlatched position.

[0035]

According to the drawings, the latch device 20 further includes a bridge arm 155. The bridge arm 155 includes a first pivot hole 117 of the first interlocking ring 98 and a second coupling hole 131 of the second interlocking ring 119. A joint end 157 and a second joint end 159 pivotally connected to the joint end 66 of the return member 63. Thus, when the first or second passive ring 88, 135 of the unlatching mechanism 86 is operated to pivot, the second convex portion 92 of the first passive ring 88 or the second convex portion 139 of the second passive ring 135 abuts against the bridge arm The first joint end 157 of the 155 pushes the first linkage ring 98 together with the second linkage ring 119 to pivot from the release position to the abutment position, while the bridge arm 155 interlocks with the return member 63 to pivot and twist the second of the first torsion spring 72 The arm 76 produces a resilient force of the reset, thereby allowing the first torsion spring 72 to bias the first linkage ring 98 of the unlatching mechanism 86 in the release position, and when the first linkage ring 98 is in the release position, the blocking portion 68 of the return member 63 The bottom portion abuts the second convex portion 92 of the first passive ring 88 and the second convex portion 151 of the second passive ring 135 (as shown in FIGS. 5 and 6).

[0036]

The latching device 20 further includes a latching member 195 pivotally disposed in the housing 28 of the housing 22, the latching member 195 including a first end 197 and a second end 199, and A pivot portion 211 between the first end and the second end 197, 199. The pivoting portion 211 of the latching member 195 is pivotally connected to the second shaft 32 of the lock housing 22, and the first end 197 of the unlatching member 195 is adjacent to the first coupling hole 40 of the lock housing 22, and the second end 199 abuts the engaging member. The inner surface of 52. The unlatching member 195 is pivotable by a second pivot axis defined by the second shaft 32, and when the unlatching member 195 is pivoted, the resisting engagement member 52 is laterally displaced, and the latching member 54 is further latched by the upper latch. The position is displaced toward the unlatching position.

[0037]

According to the drawings, the latch device 20 further includes a blocking member 171 pivotally disposed in the housing 28 of the lock housing 22. The blocking member 171 includes a pivoting end 173 and a blocking end 175, and the blocking member 171 further includes a forming portion. A linkage arm 177 on the side and at the blocking end 175. The pivoting end 173 of the blocking member 171 is pivotally connected to the third shaft 34 of the lock housing 22 such that the blocking member 171 can pivot about a third pivot axis defined by the third shaft 34. A second torsion spring 179 is sleeved on the outer periphery of the third shaft 34 and abuts against the blocking member 171. The second torsion spring 179 includes a first leg 191 that is engaged with the blocking member 171 and is engaged with the locking case 22 A second leg 193, the second torsion spring 179 biases the blocking end 175 of the blocking member 171 toward the latching head 54.

[0038]

According to the drawings, the latch device 20 further includes a locking mechanism 251 that is received in the housing 28 of the lock housing 22. The locking mechanism 251 includes a body 253 that is arranged in an L-shape. A first portion 255 and a second portion 257, the base 253 includes a first side 259 and a second side 271. The base 253 further includes a recess 273 formed in the first side 259 and located in the first portion 255 and A positioning slot 279 is formed by the receiving slot 273. The base 253 further includes a rail 275 formed on the first side 259 and located in the second portion 257. The receiving slot 273 is in communication with the rail 275. The two positioning holes 278 are formed by the receiving slot 273. The bottom surface extends to the second side surface 271. The base body 253 includes a first sliding slot 277 extending from the bottom surface of the receiving slot 273 to the second side surface 271. The first sliding slot 277 is adjacent to the positioning slot 279. Each of the positioning holes 278 of the base 253 is sleeved with each of the first positioning post 36 and the second positioning post 37. The first portion 255 of the base 253 is located below the unlatching mechanism 86 in the longitudinal direction, and the second portion 257 is located laterally. The latching mechanism 86 is between the end wall of the lock housing 22.

[0039]

The first side 259 of the base 253 is coupled to an outer cover 431. The outer cover 431 includes a second sliding slot 433 which is aligned with the first sliding slot 277 of the base 253.

[0040]

According to the drawings, the locking mechanism 251 includes a locking block 291 slidably received in the rail 275 of the base 253 and a guiding block 317. The locking block 291 is divided into a narrow portion 295 and a wide portion. 293, the wide portion 293 includes two outer surfaces 294 that are spaced apart. The wide portion 293 further includes an end surface 311 extending between the outer surfaces 294 and spaced apart from the narrow portion 295. The wide portion 293 further includes an end surface 311 formed on the end surface 311. A locking groove 313, the narrow portion 295 includes two inner surfaces 297 spaced apart and located between the outer surfaces 294. The locking block 291 further includes a perforation 299 extending from an inner surface 297 to the other inner surface and spaced apart from each other. And a pocket 315 extending from an outer surface 294 to the other outer surface 294, and the pocket 315 spans the wide portion 293 and the narrow portion 295. The narrow portion 295 of the lock block 291 is slidably received in the rail 275 of the seat body 253, and the wide portion 293 is located outside the seat body 253, and the locking groove 313 faces the first convex portions 90, 137 of the unlatch mechanism 86. The lock block 291 is limited to being displaced between the track 275 in a lateral direction (as shown in Figures 11 and 12) and a retracted position (as shown in Figures 5 to 7). Further, the length of the threaded section 357 of the drive shaft 355 in the lateral direction is slightly larger than the distance that the lock block 291 is displaced from the retracted position to the advanced position in the lateral direction.

[0041]

The guiding block 317 is received in the through hole 299 of the locking block 291, and the two ends of the guiding block 317 abut against the bottom surface of the rail 275 of the base 253 and the inner surface of the outer cover 431, respectively. Displaced between the forward and reverse positions together with the lock block 291, and further, the distance between the two inner surfaces 297 of the narrow portion 295 of the lock block 291 is less than the inner surface of the rail 275 of the seat 253 from the inner surface of the outer cover 431. The distance (as shown in Figures 8 and 12) thus allows the lock block 291 to be in a first position near the inner face of the outer cover 431 along an axial direction defined by the guide block 317 (as shown in Fig. 8). Displaced between a second position (as shown in Fig. 13) near the bottom surface of the track 275 of the seat 253.

[0042]

A shaft 337 is fixed in the cavity 315 of the lock block 291. A first slider 319, a first compression spring 333 and a second compression spring 335 identical to the first compression spring 333 are slidably sleeved outside the shaft 337. The first slider 319 includes a ring groove 331 formed on the outer peripheral surface, and the first slider 319 is located between the first and second compression springs 333, 335 such that the first slider 319 is replaced by the first and second compression springs 333. The 335 is biased to an intermediate position in the center of the pocket 315 (as shown in FIG. 7).

[0043]

According to the drawing, the locking mechanism 251 further includes an electric driving device 339 housed in the base 253. The electric driving device 339 includes a motor 351, a speed reducer 353 coupled with the motor 351, and deceleration. A drive shaft 355 is coupled to the drive shaft 355. The drive shaft 355 includes a distal end 358 away from the reducer 353. The drive shaft 355 further includes a threaded section 357 formed on the outer peripheral surface and located at the center, the end 358 of the drive shaft 355 and a The pivoting block 417 has a pivot hole 419 pivotally connected thereto. The electric driving device 339 is accommodated in the receiving groove 273 of the base 253 and the pivoting block 417 is received in the positioning groove 279 of the base 253. The motor 351 is driven to rotate the driving shaft 355 through the speed reducer 353.

[0044]

According to the drawing, the locking mechanism 251 includes a second slider 359, a third compression spring 393, a fourth compression spring 395, and a linkage piece 397, which are received in the cavity 273 of the base 253. The second slider 359 includes a first surface 371 and a second surface 373. The second slider 359 further includes a screw hole 391 extending from the first surface 371 to the second surface 373 and having a thread inside. The second slider 359 Further, a first bump 377 and a second bump 379 formed at both ends, and a joint portion 375 formed on the first surface 371 are further included.

[0045]

The second slider 359, the third and fourth compression springs 393, 395 are sleeved on the outer circumference of the drive shaft 355, and the second slider 359 is located between the third and fourth compression springs 393, 395, and the third compression spring 393 is located between the second slider 359 and the speed reducer 353, the fourth compression spring 395 is located between the second slider 359 and the pivoting block 417, and the first protrusion 377 of the second slider 359 is slidably received. The second protrusion 379 is slidably received in the second sliding slot 433 of the outer cover 431, and the screw hole 391 of the second slider 359 and the threaded section of the driving shaft 355 are included in the first sliding slot 277 of the base 253. The 357 is screwed, so that when the drive shaft 355 is positively moved, the second slider 359 is pushed to laterally compress the third compression spring 393 to be displaced toward the unlatching mechanism 86. When the motor 351 is reversed, the drive shaft 355 is reversed. The second slider 359 is displaced in the lateral direction to compress the fourth compression spring 395 in a direction away from the unlatching mechanism 86.

[0046]

The linking piece 397 includes a first portion 399 and a second portion 411. The linking piece 397 further includes a coupling groove 415 formed in the first portion 399 and a coupling hole 413 formed in the second portion. The coupling groove 415 of the first portion 399 of the linking piece 397 is engaged with the ring groove 331 of the first slider 319, and the coupling hole 413 of the second portion 411 is engaged with the coupling portion 375 of the second slider 359, so that the first and the first The two sliders 319, 359 and the interlocking piece 397 are displaced together in the lateral direction.

[0047]

According to the figure, the latch device 20 further includes a first sensor 213, a second sensor 215 and a third sensing fixed in the chamber 28 of the lock case 22 for detecting the state. The first sensor 213 is located below the latch 54 in the longitudinal direction. When the latch 54 is in the upper latch position, the latch 54 is spaced apart from the first sensor 213 (as shown in FIG. 5). When the latch 54 is in the unlatched position, the latch 54 strikes the first sensor 213 (as shown in Figure 9). The second sensor 215 is located below the resetter 63 in the longitudinal direction. When the unlatching mechanism 86 is in the release position, the recess 70 of the resetter 63 accommodates the plunger of the second sensor 215 (as shown in FIG. 5). When the first interlocking ring 98 of the unlatching mechanism 86 is in the pressing position, the recess 70 of the returning member 63 is disengaged from the pressing lever of the second sensor 215, causing the second sensor 215 to be pressed by the resetting member 63 (eg, Figure 9)). The third sensor 216 is located above the blocking member 171 in the longitudinal direction. When the blocking member 171 is in the non-blocking position, the blocking member 171 touches the third sensor 216 (as shown in FIG. 5) when the blocking member 171 is in the blocking position. In the position, the blocking member 171 does not touch the third sensor 216. The first, second, and third sensors 213, 215, 216 can be electrically coupled to the access control system or the anti-theft system, causing the access control or anti-theft system to monitor the status of the latch device 20.

[0048]

The latch device 20 is mounted in a door 435. The door 435 includes a first side 437 and a second side 439, and an end surface 451 extending between the first and second sides 437, 439. The door 435 further includes a An inner mounting space 453, the panel 42 of the latch device 20 is fixed to the end surface 451 of the door 435, the lock housing 22 is received in the mounting space 453 of the door 435, and the first operating device 455 is coupled to the first door 435. On side 437, second operating device 473 is coupled to second side 439 of door 435.

[0049]

The first operating device 455 includes two through bars 471 passing through the door 435 and the lock housing 22, and the first operating device 455 includes a first unlatching lever 459 pivotally connected to the center and coupled with the first unlatching lever 459. A first handle 457, the first unlatching lever 459 passes through the first side 437 of the door 435 and the lock housing 22 is coupled with the first passive ring 88, thereby driving the first unlatching lever 459 when the first handle 457 is rotated. The first passive ring 88 is pivoted.

[0050]

The second operating device 473 includes two bolts 479 passing through the door 435. The bolts 479 are screwed into the respective piers 471, causing the first and second operating devices 455, 473 to be clamped to the door 435. The second operating device 473 The second unlatching lever 477 is pivotally connected to the center and a second handle 475 is coupled with the second unlatching lever 477. The second unlatching lever 477 passes through the second side 439 of the door 435 and the cover 217 and the second The two passive rings 135 are coupled in combination, so that when the second handle 475 is rotated, the second unlatching lever 477 is driven to pivot the second passive ring 135.

[0051]

According to the drawings, the door lock 10 further includes a lock cylinder 237, and the lock cylinder 237 includes a paddle 239 pivoted at the end. The locking cylinder 237 is slidably coupled to the first coupling hole 40 of the lock housing 22 through the first side 437 of the door 435 or through the second side 439 of the door 435 and the second coupling hole 231 of the cover 217 according to actual use. In detail, the two spaces separated by the door 435 can be divided into indoor and outdoor. Generally, the locking cylinder 237 is installed on the side close to the outdoor. The locking mechanism 251 of the present invention is also based on actual conditions. The adjustment lock block 291 is located in the first position or the second position to cooperate.

[0052]

For convenience of description, the first to twelfth drawings of the present invention each assume that the outer side of the first side 437 of the door 435 is outdoor, and the outer side of the second side 439 of the door 435 is indoor. In this state, the lock cylinder 237 is passed through the door 435. The first side surface 437 is screwed into the first coupling hole 40 of the lock housing 22, and is screwed by the second screw hole 233 of the cover 217 by a switching screw 235, and the switching screw 235 presses against the outer surface 294 of the lock block 291. The lock block 291 is biased to the first position (as shown in FIG. 8), such that the locking groove 313 of the lock block 291 is aligned with the first passive ring 88 along the axial direction defined by the guide block 317 and along the guide block The axial direction defined by 317 is spaced from the second passive ring 135.

[0053]

Referring to Fig. 5, the door 435 is in an unclosed state, the latch 54 is in the upper latch position, the safety latch 62 extends out of the panel 42, and the linkage arm 177 of the blocking member 171 is blocked by the push surface 60 of the handle 58 to remain In the non-blocking position, the latch 54 is allowed to be displaced from the upper latching position to the unlatching position, the locking block 291 is in the retracted position, and the locking slot 313 of the locking block 291 is laterally coupled to the first convex portion 90 and the second of the first passive ring 88. The first protrusions 137 of the passive ring 135 are spaced apart, allowing the first handle 457 of the first operating device 455 and the second handle 475 of the second operating device 473 to operate the first linkage ring 98 of the unlatching mechanism 86 from the release position The position is pivoted such that the door lock 10 is set to the unlocked state, and the third sensor 216 is touched by the access control or the anti-theft system to detect that the door 435 is not closed when the blocking member 171 is in the non-blocking position.

[0054]

Referring to FIG. 5A, assuming that the door 435 is in the closed state, the latch 54 is extended into the starting frame 491, and the safety latch 62 is blocked by a door frame 491 and is located at the position of the chamber 28 retracted into the lock housing 22, thus, the blocking member 171 Being pivoted by the first leg 191 of the second torsion spring 179 and pivoted to the blocking position (as shown in FIG. 5A) by the non-blocking position (as shown in FIG. 5A) causes the blocking end 175 to pivot to the latch 54 The upper latch position is displaced toward the unlatching position, thereby preventing the small force from being displaced by the gap between the door 435 and the door frame 491 through the direct latching head 54 from the upper latching position to the unlatching position, thereby achieving the anti-smashing effect. . When the blocking member 171 is in the blocking position, the third sensor 216 is not touched, and the access or anti-theft system can thereby detect that the door 435 is in the closed state.

[0055]

When the first handle 457 of the first operating device 455 is pivoted in the state shown in FIG. 5A, the first unlatching lever 459 is pivoted in conjunction with the first passive ring 88, and the second convex portion 92 of the first passive ring 88 is pivoted. The abutting bridge arm 155 is displaced, and the further bridging arm 155 is coupled with the first and second interlocking rings 98, 117 to pivot from the release position to the pressing position by the pivot axis defined by the first and second pivot holes 38, 219, At the same time, the bridge arm 155 interlocks with the reset member 63 to rotate the second arm 76 of the first torsion spring 72 to rotate to generate a returning elastic force with the first pivot axis defined by the first shaft 30, and the returning member 63 touches the second sensor. The 215 access control or anti-theft system was detected to have someone open the door 435. When the first interlocking ring 98 of the unlatching mechanism 86 is pivoted from the releasing position to the pressing position, the linking portion 99 of the first linking ring 98 abuts the engaging member 52 and the latching lever 54 is moved from the upper latching position to the unlatching position. Displacement, when the latch 54 is displaced from the upper latch position to the unlatching position, the engagement member 52 abuts against the blocking member 171, causing the blocking member 171 to pivot from the blocking position to the non-blocking position, allowing the latch 54 to be moved from the upper latch position The latching position is displaced, and at the same time, the push surface 60 of the latching lever 58 against the lever 58 interlocks the lateral displacement of the safety latch 62 into the housing 28 of the lock housing 22, and the blocking end 175 of the blocking member 171 is blocked by the latch 54. Stay in an unblocked position. When the first interlocking ring 98 of the unlatching mechanism 86 is pivoted to the pressed position, the latch 54 is in the unlatching position (as shown in FIG. 9), allowing the door 435 to be opened, and further the first sensor 213 is latched The head 54 is pressed, and the access or anti-theft system detects that the latch 54 is displaced to the unlatched position.

[0056]

After the door 435 is opened, the first handle 457 of the first operating device 455 is released, and the first spring 55 biases the latch 54 to the upper latching position by the unlatching position, while the first torsion spring 72 biases the return member 63 to pivot. The bridge arm 155, together with the first and second interlocking rings 98, 119 and the first passive ring 88 of the unlatching mechanism 86, pivots from the pressed position to the release position, causing the first handle 457 of the first operating device 455 to be reset to a horizontal position. In the initial position, since the safety latch 62 is not blocked by the door frame 491, the second spring 56 is allowed to bias the safety latch 62 out of the outer side of the panel 42 and the push surface 60 of the handle 58 abuts against the linkage arm 177 of the blocking member 171, causing a blocking member 171 is pivoted from the blocking position to the non-blocking position.

[0057]

When the second handle 475 of the second operating device 473 is pivoted in the state shown in FIG. 5A, the second unlatching lever 477 is pivoted by the second passive ring 135, and the second convex portion of the second passive ring 135 is pivoted. 139 abuts the first joint end 157 of the bridge arm 155 such that the bridge arm 155 interlocks the first and second linkage rings 98, 117 together with the pivot axis defined by the first and second pivot holes 38, 219 from the release position Pivoting to the abutting position, while the bridge arm 155 interlocks with the resetting member 63 to pivot the second arm 76 of the first torsion spring 72 to pivot with the first pivot axis defined by the first shaft 30 to generate a returning elastic force, and the returning member 63 Touching the second sensor 215 the access control or the anti-theft system detects that someone has to open the door 435, the first linkage ring 98 of the unlatching mechanism 86 pivots from the release position to the abutment position, and the first linkage ring 98 The interlocking portion 99 abuts the engaging member 52, and the latching handle 50 and the latching head 54 are displaced from the upper latching position to the unlatching position, when the latching head 54 is moved from the upper latching position When the latch position is displaced, the engagement member 52 abuts against the blocking member 171, causing the blocking member 171 to pivot from the blocking position to the non-blocking position, allowing the latch 54 to be displaced from the upper latching position to the unlatching position, while the latching member 54 abuts the handle The push surface 60 of the 58 interlocking security latch 62 is retracted into the housing 28 of the lock housing 22 in a lateral displacement, and the blocking end 175 of the blocking member 171 is held in the non-blocking position by the blocking of the latch 54. When the unlatching mechanism 86 is pivoted to the pressed position, the latch 54 is in the unlatching position (as shown in FIG. 10), allowing the door 435 to be opened, and further the first sensor 213 is pressed by the latch 54, the access control Or the anti-theft system detects that the latch 54 is displaced to the unlatching position.

[0058]

After the door 435 is opened, the second handle 475 of the second operating device 473 is released, and the first spring 55 biases the latch 54 to the upper latching position by the unlatching position, while the first torsion spring 72 biases the return member 63 to pivot. The first and second interlocking rings 98, 119 and the second passive ring 135, which cause the bridge arm 155 to interlock with the unlatching mechanism 86, are pivoted from the pressed position to the release position, causing the first handle 457 of the first operating device 455 to be reset to the horizontal position. The initial position, because the safety latch 62 is not blocked by the door frame 491, allows the second spring 56 to bias the safety latch 62 out of the outside of the panel 42 and the push surface 60 of the handle 58 abuts against the linkage arm 177 of the blocking member 171, causing blocking The piece 171 is pivoted from the blocking position to the non-blocking position.

[0059]

Referring to FIG. 5A, in the closed state of the door 435, the motor 351 of the electric driving device 339 can be controlled by a wired or wireless control means to rotate the drive shaft 355 forward. Specifically, when the first linkage ring of the unlatching mechanism 86 is used When the 98 is in the release position, the first convex portion 90 of the first passive ring 88 and the first convex portion 137 of the second passive ring 135 are located at a position aligned with the locking groove 313 of the lock block 291, so that when the drive shaft 355 is rotated forward The drive shaft 355 interlocks the second slider 359 to compress the third compression spring 393 to be displaced laterally toward the unlatching mechanism 86, causing the linkage piece 397 to urge the first slider 319 to be displaced laterally toward the unlatching mechanism 86 because The lock block 291 is not blocked, so the first compression spring 333 is allowed to press against the lock block 291 to be displaced from the retracted position (as shown in FIG. 5A) to the forward position (as shown in FIGS. 11 and 12), since the lock block 291 is also Located in the first position, so the locking slot 313 of the lock block 291 is first passive The first protrusion 90 of the 88 is engaged such that the first passive ring 88 cannot pivot with the pivot axis defined by the first and second pivot holes 38, 219, and is further located at the first handle of the first outdoor operating device 455 The 457 cannot be pivoted, so that the door lock 10 is set to the locked state. At this time, if the door 435 is to be opened by the outdoor, the lock key of the lock cylinder 237 is released by using the correct key, and the paddle 239 is pressed against the unlatch member. The first end 197 of the 195 causes the unlatching member 195 to pivot with a second pivot axis defined by the second shaft 32. Further, the second end 199 of the unlatching member 195 abuts the engaging member 52 to engage the handle 50 and the latch. The door 435 is opened by compressing the first spring 55 from the upper latch position to the unlatched position.

[0060]

In a state where the first operating device 455 cannot be unlatched, since the second passive ring 135 is not engaged by the locking block 291, the second handle 475 that allows the second operating device 473 located in the room to be operated is operated by the latch 54 Displacement of the latch position to the unlatching position opens the door 435.

[0061]

To release the locking of the first passive ring 88 by the locking mechanism 251, the motor 351 of the electric drive device 339 is controlled to reverse the drive shaft 355, and the threaded portion 357 of the drive shaft 355 pushes the second slider 359 to compress the fourth compression spring 395. Displacement in the direction away from the unlatching mechanism 86, while the linking piece 397 is displaced together with the first slider 319 and the second slider 359, causing the second compression spring 335 to press the locking block 291 to be displaced from the advanced position to the retracted position. Thus, the locking groove 313 of the locking block 291 is separated from the first convex portion 90 of the first passive ring 88, allowing the first passive ring 88 to pivot with the first and second pivot holes 38, 219 as pivot axes, which can be further used. The first handle 457 of the first operating device 455 opens the door 435.

[0062]

Assuming that the use environment of the door lock 10 is indoors near the first side 437 of the door 435, and the space near the second side 439 of the door 435 is outdoor, the lock cylinder 237 passes through the second side 439 and the cover 217 of the door 435. The second coupling hole 231 is screwed (as shown in FIG. 13), and the switching screw 235 is locked by the first screw hole 39 of the lock housing 22 against the outer surface 294 of the lock block 291, causing the lock block 291 to be The switching screw 235 is biased to the second position such that the locking block 291 is aligned with the second passive ring 135 along the axial direction of the guiding block 317 and spaced apart from the first passive ring 88 in the axial direction of the guiding block 317.

[0063]

Referring to FIG. 14, when the door 435 is closed and the lock block 291 is in the forward position, the first convex portion 137 of the second passive ring 135 is engaged with the locking groove 313 of the lock block 291, resulting in the second passive ring 135. The pivot axis defined by the first and second pivot holes 38, 219 cannot be pivoted, and the second handle 475 of the second operating device 473 cannot be pivoted, so that the door 435 cannot be opened by operating the second operating device 473 from outside. To open the door 435 from the outside, the door 435 can be opened by using the correct key to rotate the pad 239 to cause the latch 54 to be displaced by the upper latch position to compress the first spring 55 to the unlatched position.

[0064]

In a state where the second operating device 473 cannot be unlatched, since the first passive ring 88 is not fitted by the lock block 291, the first handle 457 that allows the first operating device 455 that is located indoors to be operated is operated by the latch 54 The position is displaced to the unlatching position to open the door 435.

[0065]

The locking mechanism 251 of the present invention further provides a function of allowing misoperation in addition to the locking function. Specifically, for example, the latching head 54 is located at the unlatching position and the locking block 291 is located at the first position, as shown in FIG. The first convex portion 90 of the passive ring 88 is offset from the locking groove 313 of the lock block 291. At this time, the first convex portion 90 of the first passive ring 88 blocks the path in which the lock block 291 is displaced from the backward position to the forward position, so In such a state, the drive shaft 355 is controlled to rotate forward, and the second slider 359 compresses the third compression spring 393 to be displaced in the lateral direction toward the unlatching mechanism 86, but the lock block 291 is received by the first projection of the first passive ring 88. The 90 blocking is maintained in the retracted position (as shown in Fig. 15), so the first slider 319 compresses the first compression spring 333 from the intermediate position to a non-intermediate position in the lateral direction toward the delatching mechanism 86. When the first passive ring 88 is reset to a position where the first convex portion 90 is aligned with the locking groove 313 of the lock block 291 (ie, the first interlocking ring 98 is in the release position), the first compression spring 333 biases the lock block 291 The retracted position is displaced to the forward position. Please note that the function of allowing misoperation is also effective when the lock block 291 is in the second position, and will not be described here.

[0066]

The locking mechanism 251 of the present invention has another function for allowing erroneous operation. In detail, referring to FIG. 7, when the lock block 291 is in the retracted position, if the control motor 351 interlocks the drive shaft 355 to reverse, the second slider 359 is displaced in a direction away from the unlatching mechanism 86 and compresses the fourth compression spring 395, and interlocks the first slider 319 to be displaced laterally by the intermediate position to compress the second compression spring 335 to a non-intermediate position, but the first and second After the sliders 319, 359 are displaced in a direction away from the unlatching mechanism 86 for a short distance, the screw holes 391 of the second slider 359 are separated from the thread segments 357 of the drive shaft 355, and when the second slider 359 is screwed After the hole 391 is separated from the threaded section 357 of the drive shaft 355, the drive shaft 355 cannot continue to interlock the first and second sliders 319, 359 in the lateral direction away from the unlatching mechanism 86 (as shown in Fig. 16). Since the fourth compression spring 395 biases the second slider 359, even if the screw hole 391 of the second slider 359 is disengaged from the threaded section 357 of the drive shaft 355, the end face of the screw hole 391 of the second slider 359 is still abutted against the drive. The end of the threaded section 357 of the shaft 355 thus ensures that the threaded section 357 of the drive shaft 355 is immediately screwed into the threaded bore 391 of the second slider 359 when the drive shaft 355 is rotated forward.

[0067]

The locking mechanism 251 of the present invention does not change the original setting state because the power supply system cannot continuously supply power, that is, the locking mechanism 251 is not suddenly caused by the locking device 20 being set to the locked or unlocked state. The power-off is used to change the locked or unlocked state of the latch mechanism 20, which is advantageous for access control.

[0068]

The locking mechanism 251 of the present invention can operate the electric driving device 339 by means of wired or wireless control means, and further controls the locking block 291 to provide the door lock 10 in the locked position in the forward position or the door lock 10 in the retracted position. The unlocked state is useful for use with, for example, an access control system or an anti-theft system.

[0069]

The locking mechanism 251 of the present invention allows erroneous operation, that is, when the lock block 291 cannot be displaced, the motor 351 is still allowed to act to drive the drive shaft 355 to rotate and the first and second sliders 319 and 359 are laterally displaced, thereby preventing the motor 351 from being displaced. The problem of being damaged by the inability of the resistance. Further, when the drive shaft 355 is rotated forward but the lock block 291 is blocked from being held in the retracted position, since the first compression spring 333 is compressed, when the factor blocking the lock block 291 disappears (for example, after the handle located outside is released), A compression spring 333 immediately biases the lock block 291 from the retracted position to the advanced position, thus avoiding the problem that the door lock 10 is not surely set to the locked state due to an erroneous operation.

[0070]

In addition, the lock block 291 of the locking mechanism 251 can be quickly positioned in the first or second position in cooperation with the indoor and outdoor positions of the door lock 10, and the door lock 10 is extremely convenient when the door lock 10 is installed.

[0071]

The basic teachings of this creation have been described, and many extensions and variations will be apparent to those of ordinary skill in the art. For example, the unlatching mechanism 86 can have other changes. For example, the unlatching mechanism 86 can be formed by an integrally formed pivot block. The outer peripheral surface of the pivot block is formed with a joint portion that is convexly coupled with the engaging member 52 and a convex portion. When the lock block 291 is in the forward position, the locking groove 313 of the lock block 291 is engaged with the convex portion of the block, so that the block cannot be pivoted, and the first handle 457 of the first operating device 455 cannot operate the displacement of the latch 54. To the unlatching position, and the second handle 475 of the second operating device 473 is also unable to operate the latch 54 to be displaced to the unlatching position. Alternatively, the locking mechanism 251 may not include the pivoting block 417, and the seat body 253 may not include the positioning groove 279, so that the driving shaft 355 can still be rotated forward or reversely in conjunction with the second slider 359. Alternatively, the latching device 20 may not include the safety latch 62, the handle 58, the second positioning tab 56, and the second spring 65, in which state the latch 54 may be shrunk to pass the tool through the door 435 and the door frame. The gap between the 491 is directly split, but does not affect the function provided by the locking mechanism 251.

[0072]

The present invention disclosed in the specification is to be considered as illustrative and not restrictive. The scope of the present invention is defined by the scope of the appended claims, and is not intended to be limited by the scope of the invention.

251‧‧‧Locking mechanism

253‧‧‧ body

255‧‧‧Part 1

257‧‧‧Part II

259‧‧‧ first side

271‧‧‧ second side

273‧‧‧ 容容

275‧‧‧ Track

277‧‧‧First chute

278‧‧‧Positioning holes

279‧‧‧ positioning slot

291‧‧‧Lock block

293‧‧ Wide section

294‧‧‧ outer surface

295‧‧‧narrow

297‧‧‧ inner surface

299‧‧‧Perforation

311‧‧‧ end face

313‧‧‧Lock slot

315‧‧‧ 容容

317‧‧‧guide block

319‧‧‧First slider

331‧‧‧ Ring groove

333‧‧‧First compression spring

335‧‧‧Second compression spring

337‧‧‧ shaft

339‧‧‧Electric drive

351‧‧‧Motor

353‧‧‧Reducer

355‧‧‧ drive shaft

357‧‧ Thread segment

End of 358‧‧‧

359‧‧‧Second slider

371‧‧‧ first side

373‧‧‧ second side

375‧‧‧Combination Department

377‧‧‧First bump

379‧‧‧second bump

391‧‧‧ screw holes

393‧‧‧ Third compression spring

395‧‧‧4th compression spring

397‧‧‧ linkage film

399‧‧‧Part 1

411‧‧‧Part II

413‧‧‧Combination hole

415‧‧‧link slot

417‧‧‧ pivot block

419‧‧‧ pivot hole

431‧‧‧ Cover

433‧‧‧second chute

Claims (6)

[Item 1] A latch device with an electric locking function, comprising:
a lock case (22) comprising a chamber (28);
a latching head (54) slidably received in the housing (28) of the lock housing (22), the latching head (54) being laterally extended and retracted outside the locking housing (22) Displacement between an unlatched position in the lock housing (22);
An unlatching mechanism (86) is pivotally disposed in the chamber (28) of the lock case (22), and the unlatching mechanism (86) includes a linkage portion (99) coupled with the latch head (54) for unlatching The linkage (99) of the mechanism (86) pivots between a release position and a pressing position;
a body (253) fixed in the chamber (28) of the lock case (22), the seat body (253) comprising a track (275) and a receiving groove (273) communicating with the track (275);
A lock block (291) slidably received in the rail (275) of the seat body (253), the lock block (291) being limited by the rail (275) being laterally adjacent to the unlatching mechanism (86) Displacement between the forward position and a retracted position away from the unlatching mechanism (86);
a shaft (337) fixed in parallel transversely to the pocket (315) of the lock block (291);
a first slider (319) slidably sleeved on the shaft (337), the first slider (319) being constrained by the shaft (337) and located laterally in the center of the pocket (315) Displacement between a non-intermediate position that is not located in the center of the pocket (315);
a first compression spring (333) is sleeved on the shaft (337);
a second compression spring (335) is sleeved on the shaft (337), the first slider (319) is located between the first and second compression springs (333, 335), and the first and second compression springs ( 333, 335) holding the first slider (319) in an intermediate position;
An electric drive unit (339) is fixed in the pocket (273) of the seat body (253), the electric drive unit (339) includes a drive shaft (355), and the drive shaft (355) includes a threaded section at the center thereof. (357), the drive shaft (355) is controlled to be forward or reverse;
a second slider (359) is screwed to the drive shaft (355), the second slider (359) includes a screw hole (391), and the screw hole (391) of the second slider (359) and the drive shaft ( Threaded section (357) of 355) is screwed;
a linkage piece (397), comprising a first portion (399) coupled to the first slider (319), and a second portion (411) coupled to the second slider (359);
When the latch (54) is in the upper latch position and the unlatching mechanism (86) is pivoted from the release position to the pivoted position, the latch (54) is displaced from the upper latch position to the unlatched position,
When the unlatching mechanism (86) is in the pressed position, the latch (54) is in the unlatching position.
When the drive shaft (355) rotates forward, the second slider (359), the linkage piece (397) and the first slider (319) are displaced in a direction close to the locking mechanism (251),
When the drive shaft (355) is reversed, the second slider (359), the linkage piece (397), and the first slider (319) are displaced away from the locking mechanism.
When the unlatching mechanism (86) is in the release position, the drive shaft (355) is rotated forward to cause the lock block (291) to be displaced from the retracted position to the advanced position.
When the unlatching mechanism (86) is in the pressed position, the lock block (291) is blocked by the unlatching mechanism (86), and the drive shaft (355) is rotated forward to cause the first slider (319) to compress the first compression spring from the intermediate position. (333) Displacement to a non-intermediate position, allowing the lock block (291) to remain in the retracted position,
When the lock block (291) is in the retracted position, the lock block (291) is non-engaged with the unlatching mechanism (86), allowing the unlatching mechanism (86) to pivot from the release position to the resisted position,
When the lock block (291) is in the advanced position, the lock block (291) is engaged with the unlatching mechanism (86), causing the unlatching mechanism (86) to be displaced from the release position to the pressed position.
When the lock block (291) is in the advanced position, the drive shaft (355) is reversed, causing the lock block (291) to be displaced from the advanced position to the retracted position. [Item 2] A latching device with an electric locking function according to claim 1, wherein the length of the threaded section (357) of the drive shaft (355) is slightly larger in the lateral direction than the locking block (291) between the forward and reverse positions. The distance of the displacement further includes:
a third compression spring (393) is sleeved on the outside of the drive shaft (355);
a fourth compression spring (395) is sleeved outside the drive shaft (355), and a second slider (359) is located between the third and fourth compression springs (393, 395);
The second slider (359) compresses the third compression spring (393) when the lock block (291) is displaced from the retracted position to the advanced position.
When the lock block (291) is displaced from the forward position to the retracted position, the second slider (359) compresses the fourth compression spring (395).
When the lock block (291) is in the forward position, if the drive shaft (355) continues to rotate forward, the second slider (359) continues to compress the third compression spring (393) and the second slider (359) has a screw hole. (391) separate from the threaded section (357) of the drive shaft (355), but the third compression spring (393) biases the threaded hole (391) of the second slider (359) against the thread of the drive shaft (355) The end of the segment (357),
When the lock block (291) is in the retracted position, if the drive shaft (355) continues to reverse, the second slider (359) continues to compress the fourth compression spring (395) and the screw hole of the second slider (359) ( 391) separate from the threaded section (357) of the drive shaft (355), but the fourth compression spring (395) biases the screw hole (391) of the second slider (359) against the threaded section of the drive shaft (355) The end of (357). [Item 3] A latch device with an electric locking function according to claim 1, wherein the lock block (291) includes a wide portion (293) and a narrow portion (295), and the wide portion (293) includes two outer portions. a surface (294) and an end surface (311) between the two outer surfaces (294), the narrow portion (295) including two inner surfaces (297) between the two outer surfaces (294), the locking groove ( 313) is formed on the end surface (311) of the wide portion (293), and the lock block (291) further includes a through hole (299) extending from an inner surface (297) to the other inner surface (297), the lock block ( The wide portion (293) of the 291) is located outside the rail (275) of the base (253), the narrow portion (295) is located within the rail (275), and the base (253) further includes a first side (259) and a first Two sides (271), a track (275) and a pocket (273) are formed on the first side (259), and the unlatching mechanism (86) A first passive ring (88) and a second passive ring (135), and a first interlocking ring (98) between the first and second passive rings (88, 135), first and second The passive ring (88, 135) is pivoted together with the first interlocking ring (98), and the first passive ring (88) includes a first convex portion (90) formed on the outer peripheral surface, and the second passive ring (135) The first protruding portion (137) formed on the outer peripheral surface is formed, the linking portion (99) is formed on the outer peripheral surface of the first interlocking ring (98), and the lock housing (22) includes a pivotal connection with the first passive ring (88). a first pivot hole (38), the lock case (22) further comprising a first screw hole (39) aligned with the wide portion (293) of the lock block (291), further comprising:
a cover (217) covering the lock case (22) to close the chamber (28), the cover (217) including a second pivot hole (219) pivotally connected to the second passive ring (135), the cover (217) Also included is a second screw hole (233) aligned with the wide portion (293) of the lock block (291);
An outer cover (431) is fixed on the first side (259) of the seat body (253), and the two inner surfaces (297) of the lock block (291) are separated by a distance smaller than the bottom surface and the outer cover of the rail (275). The distance separating the inner faces of (431);
The guiding block (317) is slidably received in the through hole (299) of the locking block (291), and the two ends of the guiding block (317) respectively abut the bottom surface and the outer cover (431) of the rail (275) The inner surface causes the lock block (291) to be displaced between the first position near the side of the lock case (22) and the second position near the cover (217) along the axial direction of the guide block (317), and The lead block (317) is displaced along the lateral direction between the forward and reverse positions together with the lock block (291);
a switching screw (235), optionally screwed to the first screw hole (39) of the lock case (22) or the second screw hole (233) of the cover (217);
When the switching screw (235) is screwed to the first screw hole (39) of the lock case (22), the switching screw (235) is biased by the lock block (291) in the second position, causing the lock block (291) to be locked. The groove (313) is aligned with the first convex portion (137) of the second passive ring (135) along the axial direction of the guiding block (317), and the locking groove (313) of the locking block (291) is along the guiding block ( The axial direction of 317) is spaced apart from the first convex portion (90) of the first passive ring (88),
When the switching screw (235) is screwed to the second screw hole (233) of the cover (217), the switching screw (235) is biased by the locking block (291) in the first position, causing the locking groove of the locking block (291). (313) is aligned with the first convex portion (90) of the first passive ring (88) along the axial direction of the guiding block (317), and the locking groove (313) of the locking block (291) is along the guiding block (317) The axial direction is spaced apart from the first convex portion (137) of the second passive ring (135),
When the lock block (291) is in the first position and is displaced from the retracted position to the advanced position, the locking groove (313) of the lock block (291) is engaged with the first convex portion (137) of the second passive ring (135).
When the lock block (291) is in the second position and is displaced from the retracted position to the advanced position, the locking groove (313) of the lock block (291) is fitted into the first convex portion (90) of the first passive ring (88). [Item 4] The latching device with an electric locking function according to claim 1, wherein the base body (253) further comprises a rail (275) formed between the rail (275) and the receiving pocket (273) and connected to the receiving pocket (273). a positioning slot (279), the drive shaft (355) including an end (358) away from the threaded section (357), further comprising:
A pivoting block (417) is detachably received in the positioning slot (279) of the base (253), the pivoting block (417) includes a pivot hole (419), and the end of the drive shaft (355) (358) It is pivotally connected to the pivot hole (419) of the pivot block (417). [Item 5] The latching device with an electric locking function according to claim 3, wherein the base body (253) further comprises a second side surface (271) extending toward the first side surface (259) to communicate with the receiving slot (273). a first chute (277), the outer cover (431) further includes a second chute (433) formed on the inner surface and aligned with the first chute (277), the second slider (359) including the formation A first bump (377) and a second bump (379) at both ends, the first bump (377) of the second slider (359) is slidably received in the first slide of the base (253) In the slot (277), the second protrusion (379) of the second slider (359) is slidably received in the second sliding slot (433) of the outer cover (431). [Item 6] A latching device with an electric locking function according to claim 1, wherein the length of the threaded section (357) of the drive shaft (355) is slightly larger in the lateral direction than the locking block (291) is advanced from the retracted position in the lateral direction. The distance of the position displacement.