Door lock device

Abstract

The utility model discloses a door lock device which comprises a lock shell, a spring bolt mechanism and a first driving mechanism. The lock tongue mechanism comprises a lock pin located in the lock shell and a lock rod penetrating through the lock shell, the lock pin is fixedly connected with the lock rod, the lock rod comprises a guide rod located above the lock pin and a lock tongue located below the lock pin, the guide rod penetrates through the upper end face of the lock shell in the axial direction, and the lock tongue penetrates through the lower end face of the lock shell in the axial direction; the first driving mechanism is connected with the lock pin, and the first driving mechanism is used for driving the lock pin to do reciprocating motion in the axial direction so as to drive the lock rod to do reciprocating motion in the axial direction. The lock tongue is driven by the first driving mechanism to extend out of or retract into the lock shell, so that the elevator landing door is locked, the position of the lock tongue is fed back through the feedback mechanism to obtain the current state of the door lock device, and the use safety of an elevator is guaranteed; and the rubber ring for sound insulation is arranged between the lock tongue and the lock shell, so that noise generated in the locking or unlocking process is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of door locks, and in particular relates to a door lock device. Background Art

[0002] In the field of elevators, especially the floor door devices of home elevators, the door locks currently widely used are conventional civilian electromagnetic door locks. Such civilian electromagnetic door locks have problems such as no locking feedback signal, high failure rate, and high noise. As a key safety component of the elevator, if the floor door lock has the above problems, it will cause hidden dangers leading to serious elevator safety accidents. Therefore, such civilian electromagnetic door locks are not completely suitable for special equipment such as elevators, and there are no other door lock devices in the prior art that can meet the use requirements of home elevators.

[0003] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0004] The utility model aims to provide a door lock device, which can solve the technical problems that the existing door locks cannot give feedback signals and have high noise.

[0005] In order to achieve the above-mentioned object, a specific embodiment of the utility model provides a door lock device, including a lock housing, a bolt mechanism and a first driving mechanism;

[0006] The lock tongue mechanism comprises a lock pin located inside the lock housing and a lock rod penetrating the lock housing, the lock pin is fixedly connected to the lock rod, the lock rod comprises a guide rod located above the lock pin and a lock tongue located below the lock pin, the guide rod axially penetrates the upper end surface of the lock housing, and the lock tongue axially penetrates the lower end surface of the lock housing;

[0007] The first driving mechanism is connected to the locking pin, and is used to drive the locking pin to reciprocate along the axial direction, so as to drive the locking rod to reciprocate along the axial direction.

[0008] In one or more embodiments of the present utility model, the first driving mechanism includes a driving motor, a screw rod and a fixed block, the driving motor is fixedly connected to the lock housing, the first end of the screw rod is fixedly connected to the output end of the driving motor, the screw rod passes through the locking pin and is slidably connected to the locking pin, and a fixed block is installed on the second end of the screw rod.

[0009] In one or more embodiments of the present invention, the screw rod includes a first rod portion fixedly connected to the output end of the driving motor and a second rod portion fixedly connected to the first rod portion, and the diameter of the first rod portion is greater than the diameter of the second rod portion.

[0010] In one or more embodiments of the utility model, the locking pin is provided with a through hole extending axially through the screw rod, the through hole comprising a first through hole facing the drive motor and a second through hole facing away from the drive motor, the diameter of the first through hole is greater than the diameter of the second through hole, the diameter of the first through hole is greater than the diameter of the first rod portion, the diameter of the second through hole is smaller than the diameter of the first rod portion and the fixed block, and the diameter of the second through hole is greater than the diameter of the second rod portion.

[0011] In one or more embodiments of the present invention, a spring is provided on the guide rod, and when the lock tongue is located inside the lock housing, the spring is in a compressed state.

[0012] In one or more embodiments of the present utility model, the door lock device also includes a feedback mechanism, which includes a safety switch, a lever and a switch button. The safety switch is installed in the lock housing, and a lever and a switch button are provided on the same side of the safety switch. One end of the lever is connected to the safety switch, and the other end of the lever is arranged below the upper end surface of the lock pin. When the lock pin moves downward, the lever drives the lever to trigger the switch button.

[0013] In one or more embodiments of the present utility model, the door lock device also includes a second driving mechanism, which includes a lock core, a driving rod and a pull rod. The lock core is arranged on the lock housing and connected to one end of the driving rod, the other end of the driving rod is connected to the pull rod, and the other end of the pull rod is arranged below the upper end surface of the lock pin.

[0014] In one or more embodiments of the present invention, the locking tongue mechanism further comprises a mounting plate, the mounting plate is fixedly connected to the lock housing, a guide hole for guiding the locking tongue is provided on the mounting plate, a rubber ring for noise reduction is provided in the guide hole.

[0015] In one or more embodiments of the present invention, a guiding slope is provided at one end of the locking tongue away from the locking pin.

[0016] In one or more embodiments of the present invention, a control panel is further provided in the lock housing, and the control panel is electrically connected to the safety switch and the first driving mechanism respectively.

[0017] Compared with the prior art, the door lock device in the utility model can drive the lock tongue to extend or retract into the lock shell through the first driving mechanism, thereby realizing the locking of the elevator floor door; it also feeds back the position of the lock tongue through the feedback mechanism to obtain the current state of the door lock device, thereby ensuring the safety of the elevator; and the device also arranges a rubber ring for sound insulation between the lock tongue and the lock shell, thereby reducing the noise generated during the locking or unlocking process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a front structural diagram of a door lock device in a specific embodiment of the utility model;

[0020] Figure 2 It is a side structural diagram of a door lock device in a specific embodiment of the utility model;

[0021] Figure 3 It is a cross-sectional structural diagram of a door lock device in a specific embodiment of the utility model.

[0022] Explanation of main figure marks: 1. lock housing, 2. first driving mechanism, 21. driving motor, 22. screw rod, 221. first rod portion, 222. second rod portion, 23. fixing block, 3. lock tongue mechanism, 31. lock pin, 311. first through hole, 312. second through hole, 32. lock rod, 321. guide rod, 322. lock tongue, 33. spring, 34. rubber ring, 35. mounting plate, 4. feedback mechanism, 41. safety switch, 42. lever, 43 switch button, 5. control panel, 6. second driving mechanism, 61. lock cylinder, 62. driving rod, 63. pull rod. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be understood that the terms "vertical", "horizontal", "top", "bottom", "up", "down", "front", "back", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0025] Ginseng Figure 1As shown, a door lock device in a specific embodiment of the present invention includes a lock housing 1, a first drive mechanism 2 and a lock tongue mechanism 3.

[0026] The lock tongue mechanism 3 includes a lock pin 31 located inside the lock shell 1 and a lock rod 32 passing through the lock shell 1. The lock pin 31 is fixedly connected to the lock rod 32. The lock rod 32 includes a guide rod 321 located above the lock pin 31 and a lock tongue 322 located below the lock pin 31. The guide rod 321 axially passes through the upper end surface of the lock shell 1, and the lock tongue 322 axially passes through the lower end surface of the lock shell 1; the first driving mechanism 2 is connected to the lock pin 31, and the first driving mechanism 2 is used to drive the lock pin 31 to reciprocate axially to drive the lock rod 32 to reciprocate axially; the first driving mechanism 2 realizes the locking of the door lock device by driving the lock tongue 332 to extend out of the lock shell 1, and the first driving mechanism 2 realizes the unlocking of the door lock device by driving the lock tongue 332 to retract into the lock shell 1. In this embodiment, a guide inclined surface is provided on the end of the lock tongue 332 away from the lock pin 32.

[0027] Specifically, the first driving mechanism 2 in this embodiment includes a driving motor 21, a screw rod 22 and a fixing block 23. The driving motor 21 is fixedly connected to the lock housing 1. The first end of the screw rod 22 is fixedly connected to the output end of the driving motor 21. The screw rod 22 passes through the lock pin 31 and is slidably connected to the lock pin 31. The fixing block 23 is installed on the second end of the screw rod 22. In this embodiment, the driving motor 21 extends or retracts the screw rod 22, and the second end of the screw rod 22 locks the position of the lock pin 31 through the fixing block 23, thereby realizing the locking or unlocking of the door lock device. In addition, in this embodiment, the driving motor 21 is a screw motor.

[0028] Ginseng Figure 3 As shown, the screw rod 22 in this embodiment includes a first rod portion 221 fixedly connected to the output end of the drive motor 21 and a second rod portion 222 fixedly connected to the first rod portion 221, and the diameter of the first rod portion 221 is larger than the diameter of the second rod portion 222. The lock pin 31 is provided with a through hole penetrating along the axial direction of the screw rod 22, and the through hole includes a first through hole 311 facing the drive motor 21 and a second through hole 312 away from the drive motor 21, the diameter of the first through hole 311 is larger than the diameter of the second through hole 312, the diameter of the first through hole 311 is larger than the diameter of the first rod portion 221, the diameter of the second through hole 312 is smaller than the diameter of the first rod portion 221 and the fixed block 23, the diameter of the second through hole 312 is larger than the diameter of the second rod portion 222, and the guide rod 321 is provided with a spring 33, and when the lock tongue 322 is located inside the lock housing 1, the spring 33 is in a compressed state.

[0029] Furthermore, the locking tongue mechanism 3 in this embodiment also includes a mounting plate 35, which is fixedly connected to the lock housing 1. The mounting plate 35 is provided with a guide hole for guiding the locking tongue 322, and a rubber ring 34 for noise reduction is provided in the guide hole.

[0030] Ginseng Figure 1 As shown, the door lock device in a specific embodiment of the utility model also includes a feedback mechanism 4, which includes a safety switch 41, a lever 42 and a switch button 43. The safety switch 41 is installed in the lock housing 1, and a lever 42 and a switch button 43 are provided on the same side of the safety switch 41. One end of the lever 42 is connected to the safety switch 41, and the other end of the lever 42 is arranged below the upper end surface of the lock pin 31. When the lock pin 31 moves downward, the lever 42 is driven to trigger the switch button 43.

[0031] Ginseng Figure 1 , 2 As shown, the door lock device in a specific embodiment of the utility model also includes a second driving mechanism 6, which includes a lock core 61, a driving rod 62 and a pull rod 63. The lock core 61 is arranged on the lock housing 1 and is connected to one end of the driving rod 62, and the other end of the driving rod 62 is connected to the pull rod 63, and the other end of the pull rod 63 is arranged below the upper end surface of the lock pin 31.

[0032] Furthermore, in the lock housing 1 of the present embodiment, there is a control board 5 , and the control board 5 is electrically connected to the safety switch 41 and the driving motor 21 , respectively.

[0033] In the above embodiment, when the door lock device needs to be unlocked, the driving motor 21 retracts by driving the screw rod 22, and the second rod portion 222 of the screw rod 22 drives the lock pin 31 to move axially in the direction of the driving motor 21 through the fixing block 23, thereby driving the lock tongue 322 to retract into the lock shell 1. At this time, the spring 33 between the lock pin 31 and the lock shell 1 is in a compressed state, and the lock pin 31 is locked by the fixing block 23 to achieve unlocking of the door lock device; when the door lock device needs to be locked, the driving motor 21 extends through the driving screw rod 22, and the second rod portion 222 of the screw rod 22 unlocks the lock pin 31 through the fixing block 23. The lock pin 31 moves axially away from the driving motor 21 under the drive of its own gravity and the elastic force of the spring 33, thereby driving the lock tongue 322 to extend out of the lock shell 1 to achieve locking of the door lock device.

[0034] In the above embodiment, when the first driving mechanism 2 drives the lock tongue mechanism 3 to lock, the lock pin 31 moves downward and drives the lever 42 to rotate downward through the lower end surface of the lock pin 31, thereby triggering the switch button 43 on the safety switch 41, and the safety switch 41 transmits the information that the door lock device is locked to the control system; when the first driving mechanism 2 drives the lock tongue mechanism 3 to unlock, the lock pin 31 moves upward, causing the lever 42 to rotate away from the switch button 43 of the safety switch 41, and the safety switch 41 transmits the information that the door lock device is unlocked to the control system.

[0035] In the above embodiment, when the first drive mechanism 2 fails, a key is used to rotate the lock core 61 on the second drive mechanism 6. The lock core 61 rotates, thereby driving the drive rod 62 to rotate. The drive rod 62 drives the pull rod 63 to rotate upward. The first end of the pull rod 63 away from the lock pin 31 is arranged below the upper end surface of the lock pin 31. Therefore, when the pull rod 63 rotates, it drives the lock pin 31 to move upward, thereby realizing manual unlocking.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A door lock device, characterized in that: It includes a lock housing, a lock tongue mechanism and a first driving mechanism; The lock tongue mechanism comprises a lock pin located inside the lock housing and a lock rod penetrating the lock housing, the lock pin is fixedly connected to the lock rod, the lock rod comprises a guide rod located above the lock pin and a lock tongue located below the lock pin, the guide rod axially penetrates the upper end surface of the lock housing, and the lock tongue axially penetrates the lower end surface of the lock housing; The first driving mechanism is connected to the locking pin, and is used to drive the locking pin to reciprocate along the axial direction, so as to drive the locking rod to reciprocate along the axial direction.

2. The door lock device according to claim 1, characterized in that: The first driving mechanism includes a driving motor, a screw rod and a fixed block. The driving motor is fixedly connected to the lock housing, the first end of the screw rod is fixedly connected to the output end of the driving motor, the screw rod passes through the lock pin and is slidably connected to the lock pin, and a fixed block is installed on the second end of the screw rod.

3. The door lock device according to claim 2, characterized in that: The screw rod comprises a first rod portion fixedly connected to the output end of the driving motor and a second rod portion fixedly connected to the first rod portion, and the diameter of the first rod portion is greater than the diameter of the second rod portion.

4. The door lock device according to claim 3, characterized in that: The locking pin is provided with a through hole penetrating along the axial direction of the screw rod, and the through hole includes a first through hole facing the drive motor and a second through hole away from the drive motor, the diameter of the first through hole is greater than the diameter of the second through hole, the diameter of the first through hole is greater than the diameter of the first rod portion, the diameter of the second through hole is smaller than the diameter of the first rod portion and the fixed block, and the diameter of the second through hole is greater than the diameter of the second rod portion.

5. The door lock device according to claim 1, characterized in that: The guide rod is provided with a spring, and when the lock tongue is located inside the lock housing, the spring is in a compressed state.

6. The door lock device according to claim 1, characterized in that: The door lock device also includes a feedback mechanism, which includes a safety switch, a lever and a switch button. The safety switch is installed in the lock housing. The lever and the switch button are provided on the same side of the safety switch. One end of the lever is connected to the safety switch, and the other end of the lever is arranged below the upper end surface of the lock pin. When the lock pin moves downward, the lever drives the lever to trigger the switch button.

7. The door lock device according to claim 1, characterized in that: The door lock device also includes a second driving mechanism, which includes a lock core, a driving rod and a pull rod. The lock core is arranged on the lock housing and connected to one end of the driving rod, the other end of the driving rod is connected to the pull rod, and the other end of the pull rod is arranged below the upper end surface of the lock pin.

8. The door lock device according to claim 1, characterized in that: The locking tongue mechanism also includes a mounting plate, which is fixedly connected to the lock housing. A guide hole for guiding the locking tongue is provided on the mounting plate, and a rubber ring for noise reduction is provided in the guide hole.

9. The door lock device according to claim 1, characterized in that: A guiding slope is arranged at one end of the locking tongue away from the locking pin.

10. The door lock device according to claim 6, characterized in that: A control panel is also provided in the lock housing, and the control panel is electrically connected to the safety switch and the first driving mechanism respectively.

Images