CN212621393U - Locking state detection mechanism and electronic door lock - Google Patents

Abstract

The utility model discloses a shutting state detection mechanism and electronic lock, include: the locking device comprises a locking detection mechanism, a locking rod detection mechanism and a locking detection mechanism. The lock catch detection mechanism is used for detecting whether the lock catch is inserted into the lock groove of the lock body. The locking rod detection mechanism is used for detecting whether the locking rod of the lock body is inserted into the lock slot or not. The lock detection mechanism is used for detecting the locking and unlocking state of the electronic locking mechanism in the lock body. According to the electronic door lock of the technical scheme, the information fed back by the electronic door lock can be ensured to be consistent with the actual condition of the door. The locking state detection mechanism can confirm the locking state of the electronic door lock from three aspects of detection of the position of the lock catch, detection of the position of the locking rod and detection of the working state of the electronic locking mechanism, and the electronic door lock is determined to be locked or unlocked only when the detection states of the three detection mechanisms are consistent, so that the locking state information fed back by the electronic door lock with the mechanism is ensured to be consistent with the states of the door lock and the door.

Description

Locking state detection mechanism and electronic door lock

Technical Field

The utility model relates to a tool to lock field, in particular to shutting state detection mechanism and electronic lock.

Background

The electric power system comprises a plurality of equipment rooms and power distribution rooms which are widely distributed, doors of the equipment rooms and the power distribution rooms have high locking safety requirements, the environment is severe, the traditional mechanical lock is not applicable, and an electronic door lock is often adopted to replace the mechanical lock.

The existing electronic door lock can be connected to a network in a wireless or wired mode, and the state of the door lock is fed back in real time. However, the existing electronic door lock only detects the position of the locking rod to feed back the state of the door lock, the position of the locking rod is often manually controllable, and the situation that the feedback state is not consistent with the actual state, the locking rod is locked and the door is not locked may occur.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a shutting state detection mechanism can detect the operating condition of locking lever, electronic locking mechanism and door respectively, guarantees electronic lock feedback information's accuracy.

The utility model discloses still provide an electronic lock with this shutting state detection mechanism.

In a first aspect, according to the utility model discloses a shutting state detection mechanism of embodiment includes: the lock catch detection mechanism is used for detecting whether the lock catch is inserted into the lock groove; the locking rod detection mechanism is used for detecting whether the locking rod is inserted into the locking groove or not; and the locking detection mechanism is used for detecting the locking and unlocking state of the electronic locking mechanism.

According to the utility model discloses shutting state detection mechanism has following beneficial effect at least: the lock catch detection mechanism, the locking rod detection mechanism and the locking detection mechanism can respectively detect whether the lock catch is inserted into the lock groove or not, and whether the locking rod is inserted into the lock groove or not, namely whether the electronic locking mechanism is in a locking position or not, so that the conditions that the locking rod is locked and the lock catch is not in the lock groove to cause empty locking and the like can be effectively prevented.

In a second aspect, according to the utility model discloses an electronic door lock includes: locking; the lock body is provided with a lock groove for inserting the lock catch on one side, and comprises a locking rod, a first elastic piece and an electronic locking mechanism, wherein the locking rod can reciprocate in the lock body along the axial direction of the locking rod, one end of the locking rod is exposed out of the outer surface of the lock body, the other end of the locking rod can be inserted into the lock groove, one end of the first elastic piece is connected with the locking rod, the other end of the first elastic piece is connected with the lock body main body, the electronic locking mechanism is arranged on one side of the locking rod, and the electronic locking mechanism can lock the locking rod in the lock groove; according to the utility model discloses shutting state detection mechanism of first aspect embodiment; the communication module is arranged in the lock body and used for interacting with a terminal to realize remote monitoring; and the controller is electrically connected with the electronic locking mechanism, the lock detection mechanism, the locking rod detection mechanism, the locking detection mechanism and the communication module respectively, controls the electronic locking mechanism and the communication module to work, and receives information sent by the lock detection mechanism, the locking rod detection mechanism, the locking detection mechanism and the communication module.

According to the utility model discloses electronic lock has following beneficial effect at least: have the basis the utility model discloses the actual state of the information AND gate that the first aspect embodiment was answered to the shutting state detection mechanism, guaranteed the electronic lock feedback matches, can effectively prevent to appear false opening or false closed phenomenon and take place.

According to some embodiments of the utility model, hasp detection mechanism includes first hall sensor and first magnet steel, first hall sensor set up in on the locked groove, first magnet steel set up in on the hasp, the hasp inserts during the locked groove, first magnet steel with first hall sensor aligns.

According to some embodiments of the utility model, be equipped with a concave part along its circumference on the locking lever, be equipped with on the lock body and be used for the installation the mounting hole of locking lever, electronic locking mechanism include one end with ball passageway, locking motor and the shutting dog of mounting hole intercommunication, be equipped with a plurality of balls in the ball passageway, the shutting dog set up in on the output shaft of locking motor, be equipped with ball stirring portion on the shutting dog, the locking lever inserts during the locked groove, the ball passageway with the intercommunication department of mounting hole with the concave part aligns, ball stirring portion turns to the ball passageway dorsad during locking lever one end, can with the ball crowds to the locking lever direction or does the ball to the motion of shutting dog direction provides the space.

According to some embodiments of the invention, the recess is an annular cambered surface groove.

According to some embodiments of the utility model, the shutting dog is the cylinder, ball stirring portion is for following the V-arrangement recess that the cylinder axial set up.

According to some embodiments of the utility model, locking lever detection mechanism includes second hall sensor and second magnet steel, second hall sensor set up in on the mounting hole, the second magnet steel set up in on the locking lever, the locking lever inserts during the locked groove, the second magnet steel with second hall sensor aligns.

According to the utility model discloses a some embodiments, shutting detection mechanism includes two micro-gap switches, be equipped with on the output shaft of shutting motor at least two respectively with the boss that micro-gap switch corresponds.

According to some embodiments of the utility model, still including set up in urgent release mechanism in the lock body, urgent release mechanism is including lock core, pivot and the locking lever dog that connects in order, be equipped with along its axial on the locking lever with the draw-in groove of concave part intercommunication, the draw-in groove degree of depth equals the deepest in concave part, concave part length is not less than locking lever stroke length, the draw-in groove orientation during the locking lever dog, locking lever dog part can be followed the rotation of lock core is advanced in the draw-in groove, the key hole of lock core expose in outside the lock body.

According to some embodiments of the present invention, a protective cover is disposed at the key hole of the lock cylinder, one end of the protective cover is rotatably connected to the lock body, and a handle is disposed at one end of the locking rod exposed from the lock body.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic external structural view of an embodiment of the present invention;

fig. 2 is an exploded view of the internal structure of the embodiment of the present invention;

fig. 3 is a schematic diagram of the internal structure of the embodiment of the present invention;

fig. 4 is a schematic structural view of an electronic locking mechanism according to an embodiment of the present invention;

fig. 5 is a schematic view illustrating a configuration of a latch detection mechanism according to an embodiment of the present invention;

fig. 6 is a schematic side view of an embodiment of the present invention;

fig. 7 is a schematic structural diagram of an emergency unlocking mechanism according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a locking lever according to an embodiment of the present invention;

fig. 9 is a schematic perspective view of an emergency unlocking mechanism according to an embodiment of the present invention.

Reference numerals:

the locking device 100 is provided with a locking buckle 100,

the lock body 200, the locking groove 210, the locking lever 220, the recess 221, the first elastic member 222, the card slot 223, the electronic locking mechanism 230, the ball channel 231, the ball 232, the locking motor 233, the locking stopper 234, the latch detection mechanism 240, the first hall sensor 241, the first magnetic steel 242, the locking lever detection mechanism 250, the second magnetic steel 251, the second hall sensor 252, the locking detection mechanism 260, the emergency release mechanism 270, the lock cylinder 271, the rotating shaft 272, the protective cover 273, the locking lever stopper 274, and the second elastic member 275.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1, 3, 4 and 5, the latching state detection mechanism according to the embodiment of the present invention includes a latch detection mechanism 240, a latching lever detection mechanism 250 and a latching detection mechanism 260. The electronic door lock comprises a lock catch, a lock body and an electronic locking mechanism, wherein the lock body is provided with a lock groove and a locking rod, and the electronic locking mechanism is arranged in the lock body. The latch detection mechanism 240 is used to detect whether the latch 100 is inserted into the lock slot 210, the locking lever detection mechanism 250 is used to detect whether the locking lever 220 is inserted into the lock slot 210, and the locking detection mechanism 260 is used to detect the locking/unlocking state of the electronic locking mechanism 230. It is understood that the latch detection mechanism 240, the latch lever detection mechanism 250, and the latch detection mechanism 260 may employ one or more of a photoelectric sensor, a hall sensor, or a microswitch. According to the locking state detection mechanism of the above technical scheme, the locking state of the electronic door lock can be confirmed from three aspects of detection of the position of the lock catch 100, detection of the position of the locking rod 220 and detection of the working state of the electronic locking mechanism 230, and the electronic door lock is determined to be locked or unlocked only when the detection states of the three detection mechanisms are consistent, so that the accuracy of the locking state fed back by the electronic door lock with the locking state detection mechanism is ensured.

Referring to fig. 1, fig. 3, fig. 4 and fig. 5, the electronic door lock according to the embodiment of the present invention includes a lock catch 100, a lock body 200, a lock catch detection mechanism 240, a locking lever detection mechanism 250, a locking detection mechanism 260, a communication module and a controller. Wherein the shackle 100 is disposed on a doorframe or a door, and the lock body 200 is correspondingly disposed on the door or the doorframe, when the door is closed, the shackle 100 may be inserted into the locking groove 210 of the lock body 200. The lock body 200 further includes a locking lever 220, a first resilient member 222, and an electronic locking mechanism 230. The locking rod 220 may reciprocate in the lock body 200 in the axial direction of the locking rod 220, one end of the locking rod 220 is exposed outside the lock body 200, and the other end of the locking rod 220 may be inserted into the lock groove 210. One end of the first elastic member 222 is connected to the locking lever 220, the other end is connected to the lock body 200, the locking lever 220 deforms the first elastic member 222 under the action of external force, and the end of the locking lever 220 located in the lock body 200 extends into the lock slot 210, and after the external force is lost, the end of the locking lever 220 located in the lock body 200 leaves the lock slot 210 under the action of the first elastic member 222. The electronic locking mechanism 230 is provided at one side of the locking lever 220, and the electronic locking mechanism 230 can lock the locking lever 220 in a state where one end is inserted into the inside of the locking groove 210. The communication module is used for interacting with a terminal, so that the electronic door lock has the functions of remote control and information feedback. The controller is electrically connected to the latch detection mechanism 240, the locking lever detection mechanism 250, the locking detection mechanism 260, the electronic locking mechanism 230, and the communication module, respectively, receives information of the latch detection mechanism 240, the locking lever detection mechanism 250, the locking detection mechanism 260, and the communication module, and controls the electronic locking mechanism 230 and the communication module to operate. It is understood that the electronic locking mechanism 230 may employ an electromagnet or a motor as a source of motive power.

According to the electronic door lock of the above technical solution, when the door is closed, only when the latch detection mechanism 240 and the locking lever detection mechanism 250 respectively detect that the latch 100 is inserted into the lock slot 210 and the locking lever 220 is inserted into the lock slot 210, and then the terminal sends a locking instruction to the communication module, the controller will drive the electronic locking mechanism 230 to operate, so as to lock the locking lever 220 in the state of being inserted into the lock slot 210, and thus the latch 100 cannot be disengaged from the lock slot 210. And only when the latch detection mechanism 240 and the locking lever detection mechanism 250 detect that the latch 100 is inserted into the lock slot 210 and the locking lever 220 is inserted into the lock slot 210, respectively, and the locking detection mechanism 260 detects that the electronic locking mechanism 230 is in the working state, the controller controls the communication module to send the information of locking the electronic door lock to the terminal. Through the technical scheme, the accuracy of the information fed back by the electronic door lock can be ensured, and the situation that the state information fed back is inconsistent with the actual situation and potential safety hazards are caused because the electronic door lock is locked but the lock catch 100 is not locked in the lock groove 210 is prevented.

Referring to fig. 3 and 4, in some embodiments, the locking lever 220 is provided with a recess 221 along its circumference, and the locking lever 220 is mounted in a mounting hole in the lock body 200. The electronic locking mechanism 230 includes a ball passage 231 having one end communicating with the mounting hole, a plurality of balls 232 rolling in the ball passage 231, a locking motor 233, and a locking stopper 234. When the latching lever 220 is inserted into the latching groove 210, the recess 221 of the latching lever 220 is flush with the connecting portion between the mounting hole and the ball passage 231, and the ball 232 in the ball passage 231 can roll into the recess 221. The locking stopper 234 is provided on an output shaft of the locking motor 233 and is rotatable by the locking motor 233. The locking stopper 234 is provided with a ball striking part which can push the ball 232 in the ball channel 231 into the recess 221 of the locking lever 220 or provide a certain movement space for the ball 232 so that the ball 232 can leave the recess 221. It will be appreciated that the ball detent may be a boss or a recess provided on the locking dog 234. When the locking rod 220 is inserted into the locking slot 210, the controller can drive the locking motor 233 to rotate a certain angle, so that the ball 232 is pressed into the recess 221 under the action of the locking stopper 234, and the locking rod 220 is prevented from being ejected, so that the locking rod 220 is locked in the state of being inserted into the locking slot 210; when the lock is unlocked, the controller drives the locking motor 233 to rotate for a certain angle, the locking stopper 234 provides a certain space for the ball 232 to move in the ball channel 231, and the locking rod 220 is ejected by the first elastic member 222 and presses the ball 232 back into the ball channel 231.

Referring to fig. 7 and 8, in some embodiments, the electronic door lock further includes an emergency unlocking mechanism 270, and the emergency unlocking mechanism 270 includes a key cylinder 271, a rotating shaft 272, and a latch lever stopper 274, which are connected in sequence. A locking groove 223 is formed on the locking rod 220 along the axial direction, one end of the locking groove 223 is communicated with the concave part 221, the depth of the locking groove 223 is the same as the deepest part of the concave part 221, and the length of the locking groove 223 is not less than the stroke length of the locking rod 220. When the catch 223 is facing the latch stop 234, the latch lever stop 274 can move into and out of the catch 223 upon rotation of the lock cylinder 271. The key hole of the key cylinder 271 is exposed to the outside of the lock body 200. In normal operation, the locking lever stop 274 extends into the catch 223 and prevents the locking lever 220 from rotating. When the emergency unlocking is carried out, the emergency key is inserted into the lock cylinder 271, the lock cylinder 271 is rotated, the locking rod stopper 274 is separated from the clamping groove 223, the locking rod 220 is rotated for a certain angle, the communication position of the clamping groove 223 and the concave part 221 is communicated with the ball channel 231, the ball 232 cannot obstruct the locking rod 220 to pop out due to a gap formed at the communication position of the clamping groove 223 and the concave part 221, the locking rod 220 pops out under the action of the first elastic piece 222, and the ball 232 partially extending into the mounting hole moves to the lower part of the clamping groove 223 along the clamping groove 223. It can be understood that the lock cylinder 271 is the lock cylinder 271 of the conventional mechanical lock, and the rotation of the lock cylinder 271 can be unlocked after the corresponding teeth are recognized, and the specific implementation manner thereof is common knowledge that should be known or can be known by those skilled in the art, and the detailed description thereof is omitted here.

The locking state detection mechanism and the electronic door lock according to the embodiment of the present invention will be described in detail with reference to fig. 1 to 9 as a specific embodiment. It is to be understood that the following description is illustrative only and is not intended as a specific limitation on the invention.

Referring to fig. 3 to 5, in the present embodiment, the latch detection mechanism 240 includes a first magnetic steel 242 and a hall sensor, the first magnetic steel 242 is disposed on the latch 100, the first hall sensor 241 is disposed on the lock slot 210, and when the latch 100 is inserted into the lock slot 210, the first magnetic steel 242 is aligned with the first hall sensor 241. In this embodiment, the latching lever detecting mechanism 250 includes a second magnetic steel 251 and a second hall sensor 252, the second magnetic steel 251 is disposed on the latching lever 220, the second hall sensor 252 is disposed on the mounting hole, and when the latching lever 220 is inserted into the locking slot 210, the second magnetic steel 251 is aligned with the second hall sensor 252. In this embodiment, the latching detection mechanism 260 includes two micro switches arranged side by side, and a boss for triggering the two micro switches is correspondingly arranged on the output shaft of the latching motor 233.

Referring to fig. 3 and 4, in the present embodiment, the locking stopper 234 is a cylinder, and the ball striking portion is a V-shaped groove disposed on a side surface of the cylinder along an axial direction of the cylinder. A locking stop 234 is provided at the end of the ball channel 231 facing away from the mounting hole. When the locking stopper 234 rotates to connect the V-shaped groove with the ball channel 231, the balls 232 adjacent to the V-shaped groove can roll into the V-shaped groove, so that all the balls 232 are located in the ball channel 231 and do not prevent the locking rod 220 from being ejected. When the locking stopper 234 rotates such that the V-shaped groove does not communicate with the ball passage 231, the side surface of the locking stopper 234 pushes the ball 232 into the recess 221 of the locking lever 220, thereby locking the locking lever 220.

Referring to fig. 3 and 8, in the present embodiment, a grip is disposed at an end of the locking rod 220 exposed from the lock body 200, and the concave portion 221 of the locking rod 220 is an annular arc groove for pushing the ball 232 back into the ball channel 231 during unlocking. In this embodiment, the first elastic member 222 is a compression spring sleeved on the locking lever 220.

Referring to fig. 7 and 9, in the present embodiment, a second elastic member 275 is provided at one end of the locking lever stopper 274, one end of the second elastic member 275 is connected to the locking lever stopper 274, and the other end of the lock body 200 is connected. The locking rod stopper 274 is provided with a groove, the end of the rotating shaft 272 is provided with a half cylindrical boss, the half cylindrical boss is inserted into the groove on the locking rod stopper 274, the half cylindrical boss can be opened to the effect of a cam, and the locking rod stopper 274 is driven to extend into or extend out of the clamping groove 223 of the locking rod 220 along with the rotation of the lock core 271. In this embodiment, the locking rod 220 is provided with a limiting groove for limiting the rotation angle of the locking rod 220, and the lock body 200 is provided with a limiting pin matched with the limiting groove. Referring to fig. 6, in the present embodiment, a protective cover 273 is provided at a keyhole of the key cylinder 271.

In this embodiment, the communication module is an NB-IOT module with low power consumption.

According to the utility model discloses electronic door tool to lock has good grounds the utility model discloses a shutting state detection mechanism can detect the position of hasp, the position of locking pole and electronic locking mechanism's operating condition respectively through hasp detection mechanism, locking pole detection mechanism and shutting detection mechanism, can guarantee that the information AND gate of electronic lock feedback is unanimous with the actual situation.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (10)

1. The utility model provides a shutting state detection mechanism for detect the shutting state of electronic door lock, electronic door lock includes the hasp, be equipped with the lock body of locked groove and locking lever and set up in electronic blocking mechanism in the lock body, its characterized in that includes:

the lock catch detection mechanism is used for detecting whether the lock catch is inserted into the lock groove;

the locking rod detection mechanism is used for detecting whether the locking rod is inserted into the locking groove or not;

and the locking detection mechanism is used for detecting the locking and unlocking state of the electronic locking mechanism.

2. An electronic door lock, comprising:

locking;

the lock body is provided with a lock groove for inserting the lock catch on one side, and comprises a locking rod, a first elastic piece and an electronic locking mechanism, wherein the locking rod can reciprocate in the lock body along the axial direction of the locking rod, one end of the locking rod is exposed out of the outer surface of the lock body, the other end of the locking rod can be inserted into the lock groove, one end of the first elastic piece is connected with the locking rod, the other end of the first elastic piece is connected with the lock body main body, the electronic locking mechanism is arranged on one side of the locking rod, and the electronic locking mechanism can lock the locking rod in the lock groove;

the latching state detecting mechanism according to claim 1;

the communication module is arranged in the lock body and used for interacting with a terminal to realize remote monitoring;

and the controller is electrically connected with the electronic locking mechanism, the lock detection mechanism, the locking rod detection mechanism, the locking detection mechanism and the communication module respectively, controls the electronic locking mechanism and the communication module to work, and receives information sent by the lock detection mechanism, the locking rod detection mechanism, the locking detection mechanism and the communication module.

3. The electronic door lock of claim 2, wherein the latch detection mechanism includes a first hall sensor and a first magnetic steel, the first hall sensor is disposed on the lock slot, the first magnetic steel is disposed on the latch, and when the latch is inserted into the lock slot, the first magnetic steel is aligned with the first hall sensor.

4. The electronic door lock of claim 2, wherein the locking rod has a recess along a circumference thereof, the lock body has a mounting hole for mounting the locking rod, the electronic locking mechanism includes a ball passage having an end communicating with the mounting hole, a locking motor and a locking stopper, the ball passage has a plurality of balls therein, the locking stopper is disposed on an output shaft of the locking motor, the locking stopper has a ball striking portion, when the locking rod is inserted into the locking groove, a communicating portion of the ball passage and the mounting hole is aligned with the recess, and when the ball striking portion turns toward the end of the ball passage opposite to the locking rod, the ball striking portion can push the balls toward the locking rod or provide a space for the balls to move toward the locking stopper.

5. The electronic door lock of claim 4, wherein the recess is an annular cambered groove.

6. The electronic door lock of claim 4, wherein the locking stop is a cylinder and the ball striking portion is a V-shaped groove axially disposed along the cylinder.

7. The electronic door lock of claim 4, wherein the locking bar detection mechanism includes a second Hall sensor and a second magnetic steel, the second Hall sensor is disposed on the mounting hole, the second magnetic steel is disposed on the locking bar, and the second magnetic steel is aligned with the second Hall sensor when the locking bar is inserted into the lock slot.

8. The electronic door lock of claim 4, wherein the locking detection mechanism comprises two microswitches, and at least two bosses respectively corresponding to the microswitches are provided on an output shaft of the locking motor.

9. The electronic door lock of claim 4, further comprising an emergency release mechanism disposed in the lock body, wherein the emergency release mechanism includes a lock cylinder, a rotating shaft, and a locking rod stopper, the locking rod is provided with a slot along its axial direction, the slot is in communication with the recess, the slot has a depth equal to the deepest portion of the recess, the length of the recess is not less than the stroke length of the locking rod, the locking rod stopper can partially enter the slot with the rotation of the lock cylinder when the slot faces the locking rod stopper, and the keyhole of the lock cylinder is exposed outside the lock body.

10. The electronic door lock of claim 9, wherein a protective cover is disposed at the key hole of the lock cylinder, one end of the protective cover is rotatably connected to the lock body, and a handle is disposed at an end of the locking rod exposed from the lock body.

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