TWI715243B - Electronic supplementary lock - Google Patents

Abstract

Present invention is related to an electronic supplementary lock having a cover structure, an inner lock head and an electromechanical structure and a latch arranged therebetween. A connecting rod is mounted in the middle of the latch and a ring seat is mounted in the cover structure. The inner lock is combined with the cover structure by a pair of fixed components. The electromechanical structure has a motor controlled by a controller. The ring seat is rotationally mounted with a shaft and also connected with the connecting rod and a driving disc driving by the motor. The controller can be operated by an external wireless or wired connection. When the present invention is installed on a gate, the controller can drive the motor to rotate the driving disc and the connecting rod by means of wireless connection of a mobile device or an input key with an input password. The present invention can cause a locking tongue of the gate to be extended or retracted by a rotation of the connection rod for achieving the effect of electronic control of locking or unlocking status of the gate.

Description

Electronic auxiliary lock

The invention relates to a lock, in particular to an electronic auxiliary lock with a wireless connection control switch.

The existing auxiliary lock includes an inner lock head, an outer lock head and a lock bolt. When the auxiliary lock is installed on the door, the lock bolt is combined with the side hole of the door, and the inner and outer lock heads are arranged behind the door hole communicating with the side hole On the side and the front side, a linkage rod capable of driving the lock tongue to extend or retract is inserted through the lock bolt. The front and rear ends of the linkage rod are respectively connected with the lock core of the outer lock head and the rotary button of the inner lock head.

When the above-mentioned existing auxiliary lock is used, the key can only be inserted into the lock cylinder from the outside, and the lock cylinder is rotated to drive the linkage rod to rotate to open the auxiliary lock in front of the door. This requires the use of a key to open the door mechanically. If you want to open the auxiliary lock, you must carry the key with you, causing inconvenience in opening the door.

Since the existing auxiliary lock is mechanically opened from the outside and can only be opened in front of the door with a key, the need to carry the key causes inconvenience. To this end, the present invention allows the user to electronically control the auxiliary lock to open or close the latch through the electromechanical integration structure of the lock.

In order to achieve the above creative purpose, the present invention provides an electronic auxiliary lock, which includes an outer cover structure and an inner lock head arranged on opposite sides, and an electromechanical structure and a lock provided between the outer cover structure and the inner lock head Bolt, where: The inner surface of the outer cover structure is formed with a toothed disc recess, a ring seat is provided in the outer cover structure, a linkage rod is provided in cooperation with the ring seat, and one end of the linkage rod axially penetrates the ring seat; The electromechanical structure includes a motor, a drive disk and a controller. The motor is fixed between the outer cover structure and the inner lock head and combined with a gear. The drive disk is provided with a sleeve, and the inner end of the sleeve is closed. A non-circular hole is penetrated at the end, the sleeve is slidably sleeved on the ring seat, the linkage rod passes through the hole in a shape-fitting manner, and a tooth disc is formed around the sleeve. The disk is accommodated in the concave portion of the toothed disk, a tooth part is formed on the outer edge of the toothed disk, and the tooth part meshes with the gear. The controller can be operated by external wireless connection or wired connection through the input key. The motor is electrically connected to control the motor; The lock bolt is provided with a lock tongue, a driving hole is provided in the lock bolt in cooperation with the linkage rod, and the middle of the linkage rod passes through the driving hole in a shape-fitting manner; The inner lock head is provided with a panel base, the panel base is combined with the outer cover structure through a fixing component, and a power supply structure is provided on the panel base, and the power supply structure is electrically connected with the controller.

Further, the outer cover structure of the present invention includes an outer lock head and a cover set, the outer lock head is provided with an outer lock head through hole, and a camera lens that is electrically connected to the controller is incorporated in the outer lock head through hole , A doorbell, or a touch button, the ring seat extends inward from the inner edge of the outer lock head through hole; the middle of the cover forms a lock head sleeve hole, and the lock head sleeve hole is sleeved on the outer Around the lock head, the toothed disc recess is formed on the inner surface of the cover; the motor is fixed in the cover, and a rotary button hole penetrates through the panel seat in cooperation with the linkage rod, and a rotary button is provided. The rotary button pivots through the rotary button hole and is combined with the other end of the linkage rod.

Further, the outer cover structure of the present invention includes an outer lock head and a cover, the outer lock head is provided with an outer lock head through hole, a lock cylinder is inserted into the outer lock head through hole, and the ring seat is formed by The inner edge of the through hole of the outer lock head extends inward, and one end of the linkage rod penetrating the ring seat is fixed on the lock cylinder; a lock head sleeve hole is formed in the middle of the cover, and the lock head sleeve hole is sleeved in Around the outer lock head, the toothed disc recess is formed on the inner surface of the cover; the motor is fixed in the cover, and the linkage rod penetrates a button hole in the panel seat, and a button is provided , The rotary button pivots through the rotary button hole and is combined with the other end of the linkage rod.

Further, the outer lock head of the present invention is provided with a lock head body, a panel with a larger diameter is formed at the outer end of the lock head body, and the outer lock head through hole is axially penetrated through the lock head from the panel. The body is formed, corresponding to the two sides of the lock body, the fixing assembly extends inward from the panel. The fixing assembly includes two fixing posts, and a screw hole is penetrated in the two fixing posts respectively; around the lock sleeve hole A motor slot is formed, the toothed disc recess is communicated with the motor slot, and the motor is fixed to the motor slot in combination; the controller is located on the top side or the bottom side of the latch and matches the positions of the two fixing posts Two arc-shaped fixing post holes are pierced in the gear plate, and the two fixing posts respectively pass through each of the fixing post holes; the position of the two fixing posts is matched with the two lock bolts The panel base is perforated, and the panel base is penetrated through the two panel bases. The two fixing members respectively pass through each of the panel base perforations and the latch perforations to be screwed in each of the screw holes.

Furthermore, the controller of the present invention is provided with a circuit board, and the circuit board is provided with a microcontroller, a motor control module, and a wireless module. The wireless module and the motor control module are respectively connected to the microcontroller The controller is electrically connected with the motor through the motor control module; a plurality of input keys are provided on the outside of the cover, and the plurality of input keys are electrically connected with the circuit board to the microcontroller Input the unlocking code, the microcontroller confirms that the inputted unlocking code is correct, and then controls the motor control module to drive the motor to unlock.

Preferably, in the present invention, a power jack is provided on the outside of the cover, and the power jack is electrically connected to the controller through an extension cord.

Preferably, the power supply structure of the present invention is a battery box formed on the panel base.

Preferably, in the present invention, a name plate is connected to the outer peripheral surface of the outer cover structure, and an information display surface is formed on the name plate.

When the present invention is in use, it is installed at the gate, and after wireless or wired connection with the controller by a mobile device or an input key separately provided in the housing structure, the controller is commanded to control the rotation of the gear of the motor, and the gear is driven by the tooth When the driving disc rotates, during the rotation of the driving disc, the locking hole of the sleeve drives the linkage rod with a shape fit to rotate, and the driving hole of the latch is rotated by the linkage rod to make the lock tongue extend outward Or retract to lock or unlock.

The effect of the present invention is that a mobile device, such as a portable item with a wireless connection function or an input key that the user will carry, can be electronically connected to the controller to unlock the present invention, so there is no need to carry it with them. The key is convenient for users to use.

10: Outer lock

11: The lock body

12: Panel

121: buckle edge

13: Outer lock through hole

14: fixed column

141: screw hole

15: Ring seat

16: lock cylinder

161: Keyhole

17: Linkage lever

20: cover

21: Lock sleeve hole

211: Class Department

22: Motor slot

23: Sprocket recess

24: power jack

25: Enter key

30: inner lock

31: Panel seat

311: power supply structure

32: Turn buttonhole

33: Panel base perforation

34: rotary knob

35: fixed parts

40: Electromechanical structure

41: Motor

411: Gear

42: drive disk

421: Sleeve

422: card hole

423: Sprocket

424: Teeth

425: fixed post to let hole

43: Controller

431: Circuit Board

432: Microcontroller

433: Motor Control Module

434: wireless module

44: Extension cord

50: Latch

51: Lock tongue

52: drive hole

53: Latch perforation

A: Gate

B: side hole

C: Doorway

D: Fixed components

100: Cover structure

110: nameplate

120: Information display surface

Fig. 1 is a perspective view of the first preferred embodiment of the present invention installed on a gate.

Figure 2 is an exploded view of the first preferred embodiment of the present invention.

Fig. 3 is a plan view of the first preferred embodiment of the present invention with the exception of the lock head, the cover and the drive plate.

Fig. 4 is a block diagram of the controller of the first preferred embodiment of the present invention.

Fig. 5 is a schematic diagram of the implementation of the rotary knob in the first preferred embodiment of the present invention.

Fig. 6 is a schematic diagram of the first preferred embodiment of the present invention where the driving disc drives the linkage rod to rotate.

Fig. 7 is a schematic diagram of the wireless connection locking of the first preferred embodiment of the present invention.

Fig. 8 is a schematic diagram of the wireless connection locking of the second preferred embodiment of the present invention.

In order to understand the technical features and practical effects of the present invention in detail, and implement it according to the content of the specification, the preferred embodiment shown in the figure is further described in detail as follows.

As shown in the first preferred embodiment of the present invention shown in FIGS. 1 to 4, an electronic auxiliary lock is provided, the structure of which includes an outer cover structure 100 located on the outside, and the outer cover structure includes an outer lock head 10 and a set of In the cover 20 of the outer lock 10, an inner lock 30 located at the inner space of the outer lock 10, and an inner lock 30 located between the outer lock 10 and the inner lock 30 of the outer cover structure 100 The electromechanical structure 40 and a latch 50, of which: The outer lock 10 is provided with a lock body 11. A panel 12 with a larger diameter is formed at the outer end of the lock body 11. The panel 12 is a circular plate body and a buckle edge 121 is formed around it. 12 inwardly penetrates the lock body 11 to form an outer lock through hole 13, corresponding to the two sides of the lock body 11, a fixing assembly D extending inward from the panel 12 is provided, and the fixing assembly includes two fixing posts 14 , A screw hole 141 is respectively penetrated through the inner end surfaces of the two fixing posts 14, and a ring seat 15 extends inwardly from the inner edge of the outer lock through hole 13 along the axial direction of the outer lock through hole 13, and A lock cylinder 16 is inserted into the lock through hole 13, and a key hole 161 is formed on the outer end surface of the lock cylinder 16, and a linkage rod 17 is provided in conjunction with the lock cylinder 16. In the preferred embodiment, the linkage rod 17 is a The straight rod body in the shape of a font is arranged between the outer lock head 10 and the inner lock head 30. One end of the linkage rod 17 axially penetrates the ring seat 15 and is fixed to the lock core 16.

The cover 20 is a circular cover body and a lock cover hole 21 is formed in the middle. The outer diameter of the lock cover hole 21 is smaller than the inner diameter, and the peripheral wall outside the lock cover hole 21 forms an outer wide and inner narrow step Part 211, the lock sleeve hole 21 is sleeved around the lock body 11 of the outer lock head 10, and the buckle edge 121 is buckled on the step portion 211 in a form-fitting manner, around the lock sleeve hole 21 A motor slot 22 is recessed outwards, and a sprocket recess 23 is formed on the inner surface of the cover 20. The sprocket recess 23 is located around the inner end of the lock sleeve hole 21 and communicates with the motor slot 22. A power jack 24 is provided on the outside of the cover 20. In this preferred embodiment, the power jack 24 is a USB TYPE C jack. The power jacks 24 are not arranged on the outside of the cover 20 in a circular arrangement. There are multiple input keys 25, as in the preferred embodiment In the middle, 10 input keys 25 are provided on the outside of the cover 20, and numbers from 0 to 9 are displayed on the outside of the 10 input keys 25, which provide the user with the purpose of inputting the unlock code.

The inner lock head 30 is provided with a panel seat 31. In the preferred embodiment, the panel seat 31 is a circular seat body and is located opposite to the inner side of the outer lock head 10. A power supply structure is provided on the panel seat 31 311. In this preferred embodiment, the power supply structure 311 is a battery box structure. The position of the linkage rod 17 penetrates a button hole 32 in the middle of the panel seat 31, and the position of the two fixing posts 14 is Both sides of the panel seat 31 penetrate through the two panel seat holes 33, and the linkage rod 17 is provided with a rotary button 34. The rotary button 34 pivots through the rotary button hole 32 and is combined with the other end of the linkage rod 17 to cooperate with the two fixing The column 14 is provided with two fixing parts 35. The two fixing parts 35 are respectively bolts and respectively pass through each of the panel base holes 33 and are screwed to each of the screw holes 141, so that the panel base 31 passes through the two fixing parts 35 Combined with the outer lock 10.

The electromechanical structure 40 includes a motor 41, a drive plate 42 and a controller 43. The motor 41 can be a servo motor or a stepping motor. The motor 41 is fixed in the motor slot 22 of the cover 20 and combined with a gear 411 The drive plate 42 is provided with a sleeve 421. The inner end of the sleeve 421 is a closed end and a non-circular hole 422 is inserted therethrough. For example, in the preferred embodiment, the hole 422 is in line Hole. The outer end of the sleeve 421 is an open end, and the open end is slidably sleeved on the ring seat 15, the linkage rod 17 passes through the locking hole 422 in a form-fitting manner, and a circle is formed around the open end of the sleeve 421 Sprocket 423, the sprocket 423 is a circular disk body and is accommodated in the sprocket recess 23, cooperates with the gear 411 to form a tooth 424 on the outer edge of the sprocket 423, and the tooth 424 meshes with the sprocket 423 To fit the positions of the two fixing posts 14, two circular arc-shaped fixing post holes 425 are inserted in the gear plate 423, so that the two fixing posts 14 pass through one end of the fixing post holes 425 respectively.

The controller 43 is provided with a circuit board 431. Please refer to FIG. 2 and FIG. 4. The circuit board 431 is provided with a microcontroller 432 and a motor control module 433 and a motor control module 433 electrically connected to the microcontroller 432. The wireless module 434, the wireless module 434 can be a wireless communication technology module such as Bluetooth, radio frequency, Z wave, or Wifi. In the preferred embodiment, the wireless module 434 is a Bluetooth module. The controller 43 is electrically connected to the motor 41 by the motor control module 433, the power supply structure 311 is electrically connected to the circuit board 431 to provide power for the controller 43 to operate, and a plurality of input keys 25 are electrically connected to the circuit board 431. The micro-controller 432 can input the unlocking code to the microcontroller 432. The microcontroller 432 confirms that the inputted unlocking code is correct, and then controls the motor control module 433 to drive the motor 41 to perform the unlocking action. The power jack 24 is extended by an extension The wire 44 is electrically connected to the circuit board 431 of the controller 43. After the battery of the power supply structure 311 runs out of power, the power jack 24 can be connected to a mobile power source to provide emergency power required for the operation of the controller 43.

The lock bolt 50 is provided with a lock tongue 51, and a cross-shaped driving hole 52 that can drive the lock tongue 51 to extend or retract after rotation is provided in the middle of the lock bolt 50 in cooperation with the linkage rod 17. The intermediate shape of the linkage rod 17 The driving hole 52 is inserted through the driving hole 52, and the positions of the two fixing posts 14 are inserted through the two latch holes 53 on both sides of the middle of the latch 50. The middle of the two fixing parts 35 of the inner lock 30 respectively pass through The latch perforated 53.

When the aforementioned first preferred embodiment of the present invention is used, please refer to FIG. 2 where the latch 50 is inserted into the side hole B of a door A, and the outer lock head 10 and the inner lock head 30 are respectively Abut against the front and back of the door hole C communicating with the side hole B, pass through the panel seat 31 and the latch 50 with two fixing members 35, and then screw it to the outer lock head 10, so that the present invention is arranged in the Gate A is used. When the present invention is to be opened from behind the door of the gate A, as shown in Figs. 2 and 5, the rotary button 34 is rotated by the human hand from behind the door. When the rotary button 34 rotates, the linkage rod 17 is driven to rotate. Rotating the driving hole 52 of the latch 50 allows the latch 51 to extend outward or retract inward, thereby achieving an action of locking or unlocking the latch 50.

When using a mobile device with a wireless connection function, such as a smart phone to control the locking or unlocking of the present invention through a Bluetooth wireless connection, as shown in Figures 4 and 6, the controller of the present invention is executed by the smart phone. 43 is connected with the wireless module 434 Bluetooth wirelessly, and then the smart phone transmits commands through the Bluetooth connection to make the microcontroller 432 control the gear 411 of the motor 41 to rotate through the motor control module 433. The gear 411 of the motor 41 can be locked or unlocked in different directions Actions. For example, the locking action shown in Figures 6 to 7, when the gear 411 of the motor 41 rotates forward and drives the drive plate 42 to rotate through the tooth portion 424, the drive plate 42 rotates with the set of The locking hole 422 of the barrel 421 drives the shape-matched linkage rod 17 to rotate, and the linkage rod 17 rotates the driving hole 52 of the latch 50. As shown in FIG. 2, the rotation of the driving hole 52 enables the lock tongue 51 extends outward to perform the locking action; on the contrary, when controlling the present invention to perform the unlocking action, the microcontroller 432 drives the motor 41 to rotate the gear 411 in the reverse direction.

Please refer to Figures 2 and 7, when the power supply structure 311 of the present invention runs out of power, but the present invention is to be unlocked with a smartphone wireless connection, because the cover 20 is further provided with the emergency power supply The power jack 24 can be connected to the power jack 24 with a mobile power supply to supply the power required for the operation of the electromechanical structure 40, so that the user can still use the emergency means to communicate with the present invention after the power supply structure 311 runs out of power. Connect and unlock. Moreover, in addition to the unlocking method of the present invention by wireless connection, the multiple input keys 25 provided on the front of the cover 20 can provide the user with the function of inputting the unlocking password to the microcontroller 432. When the microcontroller 432 When it is confirmed that the entered unlocking password is correct, it will control the motor control module 433 to drive the motor 41 to unlock, providing users with unlocking means other than a key and wireless connection. In some preferred embodiments, the present invention may only A plurality of input keys 25 are used to input an unlock code to the controller 43 to unlock or close the lock.

In addition to the aforementioned first preferred embodiment of the present invention, the wireless connection between the controller 43 and the smart phone is a Bluetooth wireless connection, and the wireless module 434 can also be changed to another wireless module such as a Wifi module. A smart phone can be connected to the controller 43 through a Wifi wireless connection to control the controller 43; and the power supply structure 311 can be installed in the panel seat in addition to the battery box formed on the panel seat 31 31 battery module or externally connected wire structure. Please refer to the second preferred embodiment of the present invention shown in FIG. 8. A nameplate 110 is connected to the outer peripheral surface of the outer cover structure 100, and an information display surface 120 is formed on the nameplate 110, and information recorded through the information display surface 120 Can provide confirmation settings The nature or other information of the room of the present invention; the rest of the structure and design of the second preferred embodiment are the same as those of the first embodiment.

In addition to the aforementioned first and second preferred embodiments of the present invention, a rotary button hole 32 is penetrated in the middle of the panel base 31, and a rotary button 34 is provided in conjunction with the linkage rod 17 to join the other end of the linkage rod 17. In other preferred embodiments, the structure of the lock core and the knob 34 may not be provided, but the ring seat 15 is still provided in the outer cover structure 100 for the drive plate 42 to be combined, so that the linkage rod 17 The two ends are not connected to the lock core 16 and the knob 34, but only the state of passing through the driving hole 52 of the latch 50 in the middle. At this time, the present invention is a completely electronic auxiliary lock form. In addition to filling the through hole 13 of the outer lock head and the button hole 32 in the aforementioned electronic auxiliary lock form of the present invention, it can also be selectively combined and electrically connected to the control unit where the through hole 13 of the outer lock head is originally provided. The camera lens, doorbell, or touch button of the controller 43 can thereby provide the function of the present invention for camera monitoring outside the door, doorbell warning, or input of a password to trigger the controller 43 to unlock and close the lock.

The foregoing descriptions are only preferred embodiments of the present invention, and are not intended to limit the scope of the rights claimed by the present invention. All other equivalent changes or modifications completed without departing from the spirit disclosed by the present invention shall be included in the present invention. Within the scope of patent application.

10: Outer lock

16: lock cylinder

161: Keyhole

20: cover

24: power jack

25: Enter key

30: inner lock

51: Lock tongue

Claims (8)

An electronic auxiliary lock includes an outer cover structure and an inner lock head arranged on opposite sides, and an electromechanical structure and a latch provided between the outer cover structure and the inner lock head, wherein: the inner cover structure A toothed disc recess is formed on the surface, a ring seat is provided in the outer cover structure, and a fixing assembly is provided on both sides of the ring seat. The fixing assembly includes two fixing posts, and a screw hole is respectively penetrated through the two fixing posts, A linkage rod is provided to match the ring seat, one end of the linkage rod axially penetrates the ring seat, the ring seat and the outer cover are configured with a motor slot; the electromechanical structure includes a motor, a drive plate and a A controller, the motor is fixed in the motor slot and combined with a gear, the drive plate is provided with a sleeve, the inner end of the sleeve is a closed end and a non-circular clamping hole is penetrated, and the sleeve is slidably sleeved Set on the ring seat, the linkage rod passes through the hole in a shape-fitting manner, a toothed disk is formed around the sleeve, the toothed disk is accommodated in the toothed disk recess, and a tooth is formed on the outer edge of the toothed disk Part, the tooth part meshes with the gear, and two arc-shaped fixed post holes are penetrated in the gear plate in accordance with the positions of the two fixed posts, and the two fixed posts pass through each of the fixed posts respectively. The controller can be operated by external wireless connection or wired connection through the input key. The controller is electrically connected to the motor to control the motor; the lock bolt is provided with a lock tongue, and the linkage rod is arranged on the lock bolt There is a driving hole through which the middle of the linkage rod fits through the driving hole, and the position of the two fixing posts is matched with the latch through the two latch perforations; the inner lock head is provided with a panel seat to cooperate with the At the position of the two fixing posts, the panel base penetrates through the two panel bases. A power supply structure is provided on the panel base. The power supply structure is electrically connected to the controller. There are two fixing pieces. The two fixing pieces are bolts and pass through each The panel seat is perforated and screw-locked to each of the screw holes, so that the panel seat is combined with the outer cover structure through the two fixing parts. The electronic auxiliary lock of claim 1, wherein the outer cover structure includes an outer lock and a cover, the outer lock is provided with an outer lock through hole, and the outer lock through hole is combined and electrically connected to the control A camera lens, a doorbell, or a touch button of the device, the ring seat extends inward from the inner edge of the outer lock through hole; the middle of the cover forms a lock cover hole, and the lock cover The hole is sleeved around the outer lock head, the toothed disc recess is formed on the inner surface of the cover; the motor is fixed in the cover, and the linkage rod penetrates a button hole in the panel seat, A rotary button is provided, and the rotary button pivots through the rotary button hole to be combined with the other end of the linkage rod. For example, the electronic auxiliary lock of claim 1, wherein the outer cover structure includes an outer lock head and a cover, the outer lock head is provided with an outer lock head through hole, and a lock cylinder is inserted into the outer lock head through hole, The ring seat extends inward from the inner edge of the through hole of the outer lock head, and one end of the linkage rod penetrating the ring seat is fixed to the lock core; a lock head sleeve hole is formed in the middle of the cover. The lock head sleeve hole is sleeved around the outer lock head, and the toothed disc recess is formed on the inner surface of the cover; the motor is fixed in the cover, and a rotary button penetrates through the panel seat in cooperation with the linkage rod The hole is provided with a rotary button, and the rotary button pivots through the rotary button hole to be combined with the other end of the linkage rod. Such as the electronic auxiliary lock of claim 3, wherein the outer lock is provided with a lock body, a panel with a larger diameter is formed at the outer end of the lock body, and the outer lock through hole is inward from the panel Axially penetrates the lock body and is formed with the fixing assembly extending inward from the panel on both sides of the lock body; the motor groove is formed around the lock sleeve hole, the toothed disc recess and the motor The slots are communicated, and the motor is combined and fixed to the motor slot; the controller is located on the top or bottom side of the latch. Such as the electronic auxiliary lock of claim 3 or 4, wherein the controller is provided with a circuit board, and the circuit board is provided with a microcontroller, a motor control module, and a wireless module, the wireless module and the motor control The modules are respectively electrically connected to the microcontroller, and the controller is electrically connected to the motor through the motor control module; a plurality of input keys are provided on the outside of the cover, and the plurality of input keys are electrically connected to the circuit board. Connect and input the unlocking code to the microcontroller, and the microcontroller confirms that the inputted unlocking code is correct, and then controls the motor control module to drive the motor to unlock. Such as the electronic auxiliary lock of claim 3, wherein a power jack is provided on the outside of the cover, and the power jack is electrically connected to the controller through an extension cord. The electronic auxiliary lock according to any one of claims 1 to 4, wherein the power supply structure is a battery box formed on the panel base. An electronic auxiliary lock according to any one of claims 1 to 4, wherein a name plate is connected to the outer peripheral surface of the outer cover structure, and an information display surface is formed on the name plate.

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