Door lock device and elevator door machine

Abstract

The application discloses a door lock device and an elevator door machine. The door lock device is installed on the elevator door machine and electrically connected with a control system of the elevator door machine. The door lock device comprises a lock body assembly, a telescopic driving part, a lock bolt assembly, a trigger assembly and a sensing mechanism. The lock body assembly is provided with a lock hole. The lock bolt assembly is connected to an output end of the telescopic driving part and provided with at least one lock bolt. The lock bolt is movably inserted into the lock hole. The trigger assembly comprises the sensing mechanism and a movable mechanism fixed to the lock bolt assembly. The sensing mechanism and the telescopic driving part are electrically connected with the control system respectively. The movable mechanism moves with the lock bolt assembly. The telescopic driving part is installed on the lock body assembly and drives the lock bolt assembly to move linearly. The installation space is small. The telescopic driving part can be controlled in linkage with the control system. The overall linkage performance is strong. The electrical control performance is good.

Description

TECHNICAL FIELD

[0001] The present application relates to the elevator technical field, especially to a door lock device and elevator door machine. BACKGROUND

[0002] A door lock device is arranged in the elevator to lock the door machine system and the door panel, so as to ensure that the door panel will not be opened accidentally during the operation of the elevator. The door lock device is connected with the control of the door machine system to cooperate with the operation of the door machine system and form a linkage structure. The door lock device outputs an electrical signal under the normal operation of the elevator, so that the elevator door can be normally opened and closed. When the elevator fails, it can be manually opened by using a hex wrench or the like to meet the maintenance requirements.

[0003] In the related art, the door machine door lock is provided with a lock tongue structure which is driven by a gear and rack mechanism to realize the extension and retraction movement of the lock tongue. However, the lock tongue structure driven by the gear and rack mechanism is complex, the transmission mechanism layout requires a large space, and a large number of components are required, which causes the problem of extremely high processing cost. Moreover, the existing door machine door lock is bulky, and in order to meet the safety requirements of the lifting of the car and other components, the appearance size of the door machine is limited, and there is a technical problem of reducing the utilization rate of the shaft space. SUMMARY

[0004] In view of the above problems existing in the prior art, the purpose of the present application is to provide a door lock device and an elevator door machine.

[0005] In order to achieve the above-mentioned purpose, the technical scheme adopted by the present application is as follows: a door lock device is installed on an elevator door machine and electrically connected with a control system of the elevator door machine, and the door lock device comprises:

[0006] a lock body assembly and a telescopic driving member installed on the lock body assembly, the lock body assembly being provided with a lock opening;

[0007] a lock tongue assembly slidingly connected to the lock body assembly, the lock tongue assembly being connected to an output shaft of the telescopic driving member, the lock tongue assembly being provided with at least one lock tongue, and the lock tongue being movably inserted into the lock opening;

[0008] a trigger assembly comprising a movable mechanism fixed to the lock tongue assembly and a sensing mechanism installed on the elevator door machine, the sensing mechanism and the telescopic driving member being electrically connected with the control system, the movable mechanism moving with the lock tongue assembly, and the sensing mechanism being located on the moving path of the movable mechanism.

[0009] In an embodiment, the lock tongue assembly is movably connected to the output end of the telescopic driving member, and the lock tongue assembly is elastically pre-tightened by a return structure in the telescopic movement direction of the telescopic driving member, wherein the direction of the elastic pre-tightening force is towards the direction in which the lock tongue penetrates out of the lock opening.

[0010] In an embodiment, the lock body assembly comprises a door lock body, the reset structure comprises two or more guide posts arranged at intervals on the door lock body, a guide sleeve slidingly connected to the guide posts, and an elastic member elastically abutting against the guide sleeve, and the latch assembly is mounted on the guide sleeve.

[0011] In an embodiment, the telescopic drive is configured to be mounted on an electric push rod of the lock body assembly.

[0012] In an embodiment, the latch assembly comprises a fixed plate located in the lock body assembly and an adapter plate protruding from the lock body assembly, the adapter plate and the fixed plate are fixedly connected, the movable mechanism is provided with an adjusting hole in the shape of a long hole, the movable mechanism is detachably connected to the adapter plate through a fastener passing through the adjusting hole, and the sensing mechanism is located in the length direction of the adjusting hole.

[0013] In an embodiment, the sensing mechanism comprises a mechanical contact switch mounted on the elevator door machine, the movable mechanism is provided with a pin assembly matched with the mechanical contact switch, and the mechanical contact switch is located in the moving direction of the pin assembly.

[0014] In an embodiment, the sensing mechanism further comprises a proximity switch mounted on the elevator door machine, the movable mechanism is provided with a trigger lever matched with the proximity switch, the proximity switch is located on the side of the lock body assembly, the trigger lever extends towards the side of the lock body assembly, and the sensing area of the proximity switch is located within the activity range of the trigger lever.

[0015] In an embodiment, a manual unlocking assembly rotatably connected to the lock body assembly is further included, one end of the manual unlocking assembly elastically abuts against the latch assembly, and the elastic pre-tightening force of the manual unlocking assembly acting on the latch assembly is directed towards the telescopic drive.

[0016] In an embodiment, the manual unlocking assembly comprises an unlocking frame, a spring member connecting the unlocking frame and the lock body assembly, the unlocking frame comprises a hinged portion, an unlocking arm extending from the hinged portion towards the latch assembly, a connecting arm protruding from the hinged portion towards the lock body assembly, and a driving arm protruding in a direction opposite to the protruding direction of the unlocking arm, and the spring member connects the lock body assembly and the connecting arm, wherein the driving arm drives the unlocking arm to move to unlock the latch assembly under the action of an external force.

[0017] The second aspect of the present application discloses an elevator door machine, comprising a door machine assembly, a control system mounted on the door machine assembly, and a door lock device as described above, the lock body assembly is fixedly connected and attached to the door machine assembly, and the latch is inserted out of the door machine assembly when the telescopic drive is elongated.

[0018] The telescopic driving member is installed on the lock body assembly and drives the bolt assembly to move linearly, the installation space is small, the telescopic driving member can be controlled in linkage with the control system, the overall linkage performance is strong, and the electrical control performance is good. The movable mechanism triggers the sensing mechanism along with the movement of the bolt assembly, so that the control system can determine the opening and closing state of the door plate based on the signal triggered by the sensing mechanism, and the control effect is good. The door lock device has few parts and a compact overall structure, and the overall cost is obviously reduced. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0020] Figure 1 is a structural schematic view of the door lock device of the present application;

[0021] Figure 2 is a structural schematic view of the bolt assembly in the extended position in the door lock device of the present application;

[0022] Figure 3 is a structural schematic view of the bolt assembly in the retracted position in the door lock device of the present application;

[0023] Figure 4 is a structural schematic view of the trigger assembly in the extended position in the present application;

[0024] Figure 5 is a structural schematic view of the manual unlocking of the present application.

[0025] In the drawings: 10, lock body assembly; 11, door lock main body; 111, mounting groove; 12, guide column; 13, elastic member; 14, guide sleeve; 15, height increasing frame; 16, fixed boss; 20, telescopic driving member; 21, electric push rod; 30, bolt assembly; 31, bolt; 32, fixed plate; 33, adapter plate; 34, adjusting plate; 40, trigger assembly; 41, movable mechanism; 411, adjusting hole; 412, first mounting plate; 413, side plate; 414, second mounting plate; 42, pin assembly; 43, sensing mechanism; 44, proximity switch; 45, trigger lever; 46, mechanical contact switch; 50, manual unlocking assembly; 51, unlocking frame; 511, hinged part; 512, unlocking arm; 513, driving arm; 514, connecting arm; 52, spring member; 60, key assembly; 61, swinging member. DETAILED DESCRIPTION

[0026] For the purpose of facilitating the understanding of the present application, the present application will be described in more detail below. However, it should be understood that the present application can be realized in many different forms and is not limited to the embodiments or examples described herein. On the contrary, the purpose of providing these embodiments or examples is to make the disclosure of the present application more thorough and comprehensive.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein is for the purpose of describing particular embodiments or examples only and is not intended to be limiting of the present application.

[0028] See Figures 1 to 5 As shown: the present application discloses a door lock device, which is installed in an elevator door machine and electrically connected with the control system of the elevator door machine. The door lock device is used to control the locking and opening between the elevator door machine and the door panel, thereby improving the safety of the elevator operation.

[0029] The door lock device comprises a lock body assembly 10, a trigger assembly 40, a telescopic driving member 20 installed on the lock body assembly 10, and a lock tongue assembly 30 connected to the output end of the telescopic driving member 20. The lock body assembly 10 is used to be fixedly installed on the elevator door machine, so that the main body of the door lock device is assembled on the elevator door machine, which is convenient to assemble and has a small overall structure size.

[0030] The lock body assembly 10 is a rigid structural member, and a lock opening is arranged on the lock body assembly 10, which is used to define the telescopic direction and telescopic area of the lock tongue assembly 30. Specifically, the lock tongue assembly 30 is provided with at least one lock tongue 31, and the lock opening is located in the telescopic direction of the lock tongue 31, i.e. the lock opening is directed towards the door panel, and the door panel has a matching part corresponding to the lock tongue. The lock tongue 31 is a rod-shaped structure and is slidably connected with the lock opening, wherein the radial movement range of the lock tongue 31 is limited to the position of the lock opening, so as to realize the directional telescopic movement. As a preferred, the lock tongue 31 is provided with two and is spaced apart, so as to be connected with the door panel through the two lock tongues 31, thereby locking the elevator door machine and the door panel. As a preferred, the outer contour size of the lock tongue 31 is slightly smaller than the hole contour size of the lock opening, so as to reduce the movement size of the lock tongue 31 in the radial direction of the lock opening, and when the lock tongue 31 is subjected to a radial force, it can directly abut against the hole wall of the lock opening, thereby reducing the influence on the telescopic driving member 20. Optionally, the outer peripheral wall of the lock tongue 31 is provided with a guide plane, so as to form a non-cylindrical lock tongue 31 structure.

[0031] The telescopic drive 20 can realize linear telescopic movement to simplify the overall drive structure. The lock tongue assembly 30 is connected with the output shaft of the telescopic drive 20 in linkage, and in the telescopic action of the telescopic drive 20, the lock tongue assembly 30 realizes linear telescopic movement, and the movement effect is good. As preferred, the telescopic drive 20 is configured as an electric push rod 21 mounted to the lock body assembly 10 to reduce the occupied space of the telescopic drive 20. As preferred, the telescopic drive 20 is fixed to the outer peripheral wall of the lock body assembly 10, the output shaft penetrates into the lock body assembly 10 and is connected with the lock tongue assembly 30 in linkage, the installation is firm, the thickness dimension of the door lock device is reduced, and the space influence on the shaft is reduced.

[0032] Further, the trigger assembly 40 includes a sensing mechanism 43 and a movable mechanism 41 fixed to the lock tongue assembly 30, and the sensing mechanism 43 and the telescopic drive 20 are respectively electrically connected with the control system. The movable mechanism 41 moves with the lock tongue assembly 30, and the sensing mechanism 43 is located on the movement path of the movable mechanism 41. The lock tongue assembly 30 moves linearly and reciprocally under the drive of the telescopic drive 20, and correspondingly, the movable mechanism 41 moves synchronously with the lock tongue assembly 30 to synchronously react the activity state and the activity position of the lock tongue assembly 30. Further, the sensing mechanism 43 is installed at a fixed position of the elevator door machine, and the sensing mechanism 43 is triggered in the movement of the movable mechanism 41, and correspondingly, the sensing mechanism 43 outputs a corresponding electrical signal, and the control system determines the state of the door plate locking based on the electrical signal, and the linkage and feedback consistency are good.

[0033] Therefore, the telescopic drive 20 is installed to the lock body assembly 10 and drives the lock tongue assembly 30 to move linearly and telescopically, the installation space is small, and the telescopic drive 20 can be controlled in linkage with the control system, the overall linkage performance is strong, and the electrical control performance is good. The movable mechanism 41 triggers the sensing mechanism 43 when moving with the lock tongue assembly 30, so that the control system can determine the opening and closing condition of the door plate based on the signal triggered by the sensing mechanism 43, and the control effect is good. The door lock device has few part numbers and a compact overall structure, and the overall cost is obviously reduced.

[0034] In an embodiment, the lock body assembly 10 includes a door lock body 11, which is a thin-walled frame structure fixed to the elevator door machine by screws or other fasteners. As preferred, the door lock body 11 is provided with protruding fixing bosses 16 on both sides, and the screws penetrate through the fixing bosses 16 and are locked to the elevator door machine to fix the door lock body 11 to the elevator door machine.

[0035] Two or more guide posts 12 are arranged at intervals in the door lock body 11, and the elastic member 13 is arranged in a spring structure sleeved on the guide post 12. One end of the elastic member 13 abuts against the door lock body 11, and the other end abuts against the guide sleeve 14, so that the guide sleeve 14 is always subjected to the elastic force of the elastic member 13, which pushes the guide sleeve 14 to move in the direction of the door plate. The guide sleeve 14 has a central hole, one end of the guide post 12 is connected to the upper wall of the door lock body 11, and the other end of the guide post 12 passes through the central hole of the guide sleeve 14 and abuts against the lower wall of the door lock body. The guide sleeve 14 is arranged on the latch bolt assembly 30, so that the moving direction of the latch bolt assembly 30 is parallel to the axis direction of the guide post 12. Specifically, two guide posts 12 are arranged, and the two guide posts 12 are located in the region between the two latch bolts 31 and on both sides of the output shaft of the telescopic drive 20, so that the moving range and the force of the latch bolt assembly 30 are stable.

[0036] Further, the door lock body 11 includes a mounting groove 111. Optionally, the door lock body 11 includes a back plate and an annular wall arranged around the back plate, the annular wall including an upper wall, a lower wall, and left and right side walls. The fixing boss 16 protrudes from the surface of the annular wall, and the annular wall and the back plate surround an internal cavity to form the mounting groove 111. The guide post 12 is connected to the upper and lower walls opposite to each other in the mounting groove 111, and the guide sleeve 14, the elastic member 13, and part of the latch bolt assembly 30 are located in the mounting groove 111, thereby reducing the volume of the lock body assembly 10 and improving the space utilization. In this embodiment, the door lock body 11 is an integrally formed thin-walled structural member. Part of the latch bolt assembly 30 protrudes from the opening end of the mounting groove 111 and is connected to the movable mechanism 41 to constitute a moving sensing function. As a preferred embodiment, the door lock body 11 is a rectangular frame structure which is integrally cast, has high structural strength, and is convenient to assemble.

[0037] The lock hole penetrates one of the side groove walls, and the telescopic drive 20 is mounted on the other side groove wall to improve the compactness of the overall structure. As a preferred embodiment, the motor part of the telescopic drive 20 is mounted outside the door lock body 11, the output shaft penetrates the upper wall of the annular wall and extends into the mounting groove 111, and the end of the output shaft is connected to the latch bolt assembly 30. The radial cross section of the telescopic drive 20 connected to the annular wall is less than or equal to the width of the annular wall, thereby reducing the thickness dimension of the door lock device.

[0038] See Figures 1 to 5As shown: in an embodiment, the bolt assembly 30 includes a fixed plate 32 located in the lock body assembly 10 and an adapter plate 33 protruding from the open end of the mounting groove 111, the adapter plate 33 and the fixed plate 32 are fixedly connected, and the bolt 31 is fixed to the fixed plate 32. Optionally, the adapter plate 33 and the fixed plate 32 are an integral structure to form an overall sheet metal bending piece, which has high structural strength and high dimensional accuracy. Optionally, the adapter plate 33 and the fixed plate 32 are adjustably connected to adjust the relative position of the two, improving the convenience of size space adjustment. The fixed plate 32 is fixedly connected to the guide sleeve 14 and drives the adapter plate 33 to move up and down during the sliding of the guide sleeve 14 along the guide column 12. As a preferred, the fixed plate 32 is provided as a bending plate structure, wherein the fixed plate 32 is bent towards the back plate side away from the door lock main body 11 to improve the structural strength of the fixed plate 32. Optionally, the bent end of the fixed plate 32 protrudes towards the side of the bolt 31 to constitute a limiting structure of the maximum extension length of the telescopic drive 20. Optionally, the fixed plate 32 and the adapter plate 33 are connected through an adjusting plate 34, the fixed plate 32 and the adapter plate 33 are parallel to each other, and the adjusting plate 34 is used to adjust the spacing distance between the fixed plate 32 and the adapter plate 33 to adjust the installation height of the movable mechanism 41. As a preferred, the fixed plate 32, the adjusting plate 34 and the adapter plate 33 are an integral bending structure.

[0039] As a preferred, the output end of the telescopic drive 20 penetrates the fixed plate 32, a limiting block is installed at the end of the output end of the telescopic drive 20, the limiting block lifts the lower surface of the fixed plate 32, and the elastic piece 13 abuts against the upper surface of the fixed plate 32 to constitute a balance structure.

[0040] The adapter plate 33 protrudes from the mounting groove 111 of the door lock main body 11 to connect the movable mechanism 41. Among them, the movable mechanism 41 is provided with an adjusting hole 411 in the shape of a long hole, and the movable mechanism 41 is detachably connected to the adapter plate 33 through a fastener penetrating the adjusting hole 411. The sensing mechanism 43 is located in the length direction of the adjusting hole 411. The sensing mechanism 43 is located outside the door lock main body 11, and the movable mechanism 41 extends from the adapter plate 33 to the sensing mechanism 43 to reduce the overall size of the door lock main body 11. The sensing mechanism 43 is located on one side of the door lock main body 11, and the movable mechanism 41 moves along the adjusting hole 411 and fine tunes to realize accurate cooperation between the sensing mechanism 43 and the movable mechanism 41 and sensitive sensing area and convenient adjustment. As a preferred, the adjusting hole 411 is provided with two to make the sliding direction of the movable mechanism 41 straight, and the fine tuning is convenient.

[0041] As preferred, the moving mechanism 41 comprises a first mounting plate 412, a side plate 413 bent from the first mounting plate 412, and a second mounting plate 414 bent from the side plate 413, the first mounting plate 412 is parallel to the second mounting plate 414, and there is a height difference between the first mounting plate 412 and the second mounting plate 414. The adjusting hole 411 penetrates the first mounting plate 412, and the first mounting plate 412 is attached to the adapter plate 33. The sensing mechanism 43 is mounted on the second mounting plate 414, and the height difference between the second mounting plate 414 and the first mounting plate 412 expands the installation sensing range of the sensing mechanism 43.

[0042] In an embodiment, the sensing mechanism 43 comprises a mechanical contact switch 46 mounted on the elevator door machine, and the moving mechanism 41 is provided with a pin assembly 42 matched with the mechanical contact switch 46, and the mechanical contact switch 46 is located in the moving direction of the pin assembly 42. The pin assembly 42 is mounted on the second mounting plate 414, and realizes the plugging and separation with the mechanical contact switch 46 in the lifting movement of the moving mechanism 41, thereby enabling the mechanical contact switch 46 to output corresponding electrical signals. Wherein, the plugging and matching direction of the pin assembly 42 and the mechanical contact switch 46 is parallel to the axial direction of the guide column 12, and the plugging and matching position of the pin assembly 42 and the mechanical contact switch 46 is adjusted conveniently through the height difference of the second mounting plate 414 relative to the first mounting plate 412 and the fine adjustment direction of the adjusting hole 411. Further, the mechanical contact switch 46 is located on one side of the door lock body 11 and close to the elevator door machine installed on the door lock body 11, thereby reducing the thickness of the whole door lock device, and accordingly, the second mounting plate 414 protrudes towards the side of the elevator door machine installed on the door lock body 11.

[0043] Further, the sensing mechanism 43 further comprises a proximity switch 44 mounted on the elevator door machine, and the moving mechanism 41 is provided with a trigger rod 45 matched with the proximity switch 44, and the proximity switch 44 is located on the side of the lock body assembly 10. The proximity switch 44 can be set as a non-contact trigger element for sensing corresponding medium, for example, the proximity switch 44 is configured as a ferrous material sensing switch, when the ferrous material moves to the sensing area of the proximity switch 44, the proximity switch 44 outputs an electrical signal. The proximity switch 44 and the mechanical contact switch 46 jointly detect the moving distance of the bolt assembly 30, thereby feeding back the lifting moving range of the bolt assembly 30.

[0044] The trigger lever 45 is a trigger member made of iron material, and is bent and extends towards the lock body assembly 10. The sensing area of the proximity switch 44 is located within the moving range of the trigger lever 45. The proximity switch 44 is spaced apart from the mechanical contact switch 46, and is located above the mechanical contact switch 46 to detect the upper limit position of the movement of the bolt assembly 30. The mechanical contact switch 46 detects the lower limit position of the bolt assembly 30. Preferably, the proximity switch 44 is mounted on the mechanical contact switch 46 to form an integrated mounting structure. Alternatively, the proximity switch 44 and the mechanical contact switch 46 are jointly mounted on a mounting bracket, and are then uniformly mounted on the door machine through the mounting bracket to realize uniform assembly.

[0045] The trigger lever 45 is mounted on the side plate 413 and is spaced apart from the second mounting plate 414. The end of the trigger lever 45 is provided with a sensing portion made of iron material that can be recognized by the sensing area. Alternatively, the trigger lever 45 is entirely made of iron material that can be recognized by the sensing area. When the trigger lever 45 moves with the bolt assembly 30 to the sensing area, the proximity switch 44 sends an electrical signal to the control system to determine that the bolt is retracted to the position.

[0046] In addition to controlling the extension and retraction of the bolt assembly 30 by the telescopic drive 20, the door lock assembly is also provided with a manual drive structure to manually unlock in case of failure of the telescopic drive 20 or power failure.

[0047] In an embodiment, the door lock device further comprises a manual unlocking assembly 50 rotatably connected to the lock body assembly 10. One end of the manual unlocking assembly 50 elastically abuts against the bolt assembly 30. The elastic pre-tightening force of the manual unlocking assembly 50 acting on the bolt assembly 30 is directed towards the telescopic drive 20. The manual unlocking assembly 50 is rotatably connected to the door lock main body 11 through a pin shaft. The manual unlocking assembly 50 extends towards the bolt assembly 30 and elastically abuts against the lower side of the adapter plate 33. When the manual unlocking assembly 50 is rotated about the hinge point under the action of external force, the manual unlocking assembly 50 can drive the bolt assembly 30 to move towards the telescopic drive 20 to release the locking of the door plate by the bolt 31. The external force acting on the manual unlocking assembly 50 comes from the driving tool of the operator pressing the manual unlocking assembly 50. Alternatively, the operator drives the adapter to transmit force to the manual unlocking assembly 50.

[0048] In an alternative embodiment, the manual unlocking assembly 50 comprises an unlocking bracket 51 and a spring member 52 connecting the unlocking bracket 51 and the lock body assembly 10. The unlocking bracket 51 elastically abuts against the lower side of the adapter plate 33 under the elastic force of the spring member 52, so that the two always maintain an abutting state without a moving gap. The stroke amount of the operator acting on the unlocking bracket 51 can be directly reflected in the movement amount of the bolt assembly 30, thereby improving the accuracy of the movement amount calculation.

[0049] Further, the unlocking frame 51 comprises a hinge part 511, an unlocking arm 512 extending from the hinge part 511 to the direction of the bolt assembly 30, a connecting arm 514 protruding from the hinge part 511 to the direction of the lock assembly 10, and a driving arm 513 protruding from the hinge part 511 to the direction away from the unlocking arm 512, and the spring member 52 is connected to the lock assembly 10 and the connecting arm 514, wherein the driving arm 513 drives the unlocking arm 512 to move the bolt assembly 30 to unlock under the action of external force. The hinge part 511 is connected to the door lock body 11 by a pin shaft hinge, so that the unlocking frame 51 rotates as a whole around the pin shaft. The driving arm 513 and the unlocking arm 512 protrude from the two sides of the hinge part 511 respectively to form a lever driving structure. The length of the driving arm 513 is less than the length of the unlocking arm 512, and correspondingly, the rotation stroke of the driving arm 513 is enlarged in proportion to the rotation stroke of the unlocking arm 512. The unlocking arm 512 abuts against the lower side of the bolt assembly 30, so that the bolt assembly 30 is retracted into the door lock body 11 under the driving force of the driving arm 513, and the unlocking effect is good.

[0050] The connecting arm 514 is used to connect the spring member 52, so that the spring member 52 transmits elastic force to the unlocking frame 51. The connecting arm 514 protrudes towards the upper wall of the door lock body 11, and correspondingly, the spring member 52 is located on the outer side of the door lock body 11, so as to reduce the height of the door lock device beyond the elevator door machine and avoid increasing the installation space required by the door lock device. As a preferred embodiment, the lock assembly 10 comprises a height increasing frame 15 installed on the door lock body 11, and the height increasing frame 15 is spaced apart from the telescopic driving member 20 and installed on the same plane of the door lock body 11. The two ends of the spring member 52 are connected to the height increasing frame 15 and the connecting arm 514 respectively, so as to increase the elastic extension amount of the spring member 52 and improve the elastic deformation performance. As a preferred embodiment, the side surface of the connecting arm 514 abuts against the side wall of the door lock body 11, so that the unlocking arm 512 is kept at one angle and is away from the adapter plate 33 when the bolt assembly 30 is retracted, so as to reduce the resistance required by the bolt assembly 30 when it is extended or retracted.

[0051] The door lock device disclosed in the above embodiments is applied to the elevator door machine to reduce the volume of the elevator door machine when it is running and to reduce the cost of the door lock device. The elevator door machine comprises a door machine assembly, a control system installed on the door machine assembly, and the door lock device, the lock assembly 10 is fixedly connected to and attached to the door machine assembly, and the bolt 31 penetrates out of the door machine assembly when the telescopic driving member 20 is elongated.

[0052] The door machine assembly comprises a door machine frame, and the door lock device is installed on the door machine frame. The door machine frame is processed by bending a plate material, and the driving motor and other door machine accessories are installed on the door machine frame. The door lock body 11 is installed on the door machine frame, so as to reduce the installation space of the door lock device on the elevator door machine and improve the utilization rate of the shaft.

[0053] As a preference, the door machine assembly is provided with a key assembly 60, which is provided with a swing member 61, and the driving arm 513 is located in the rotation direction of the swing member 61, so that the operator drives the key assembly 60 to rotate through a tool. The swing member 61 drives the unlocking frame 51 to rotate, and the locking of the door plate by the bolt assembly 30 is released.

[0054] The technical features of the above embodiments can be combined in any manner. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, but as long as the combinations of the technical features do not contradict, they should be considered as falling within the scope of the present disclosure.

[0055] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the patent. Those skilled in the art can make several modifications and improvements without departing from the concept of the present application, and these all fall within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A door lock device, installed on an elevator door operator and electrically connected to the control system of the elevator door operator, characterized in that, The door lock device includes: A lock body assembly and a telescopic drive component mounted on the lock body assembly, wherein the lock body assembly is provided with a lock opening; A locking tongue assembly is connected to the output end of the telescopic drive member. The locking tongue assembly is provided with at least one locking tongue, which is movably inserted into the lock opening. During the telescopic movement of the telescopic drive member, the locking tongue assembly achieves linear telescopic movement. The triggering component includes a sensing mechanism and a movable mechanism fixed to the latch assembly. The sensing mechanism and the telescopic drive are electrically connected to the control system. The movable mechanism moves with the latch assembly, and the sensing mechanism is located on the movement path of the movable mechanism. The lock body assembly includes a door lock body, and the sensing mechanism is located on the outside of the door lock body; The latch assembly is movably connected to the output end of the telescopic drive member. The latch assembly is subjected to the elastic preload of the reset structure in the telescopic movement direction of the telescopic drive member, wherein the direction of the elastic preload is toward the direction in which the latch protrudes from the lock opening. The reset structure includes two or more guide posts spaced apart from the door lock body, a guide sleeve slidably connected to the guide posts, and an elastic member elastically abutting against the guide sleeve; the lock tongue assembly is installed on the guide sleeve. The door lock body includes a mounting groove, a back plate, and an annular wall surrounding the back plate. The annular wall includes an upper wall, a lower wall, and left and right side walls. The internal cavity formed by the annular wall and the back plate constitutes the mounting groove. The guide post connects the upper and lower walls of the mounting groove. The guide sleeve, the elastic element, and part of the latch assembly are all located in the mounting groove. Part of the latch assembly protrudes from the opening end of the mounting groove and is connected to the movable mechanism. The lock opening passes through one side of the groove wall. The telescopic drive is installed on the other side of the groove wall. The motor part of the telescopic drive is installed outside the door lock body. The latch assembly is linked to the output shaft of the telescopic drive. The end of the output shaft is connected to the latch assembly. The output shaft passes through the upper wall of the annular wall and extends into the mounting groove. The door lock device further includes a manual unlocking component rotatably connected to the lock body assembly. One end of the manual unlocking component elastically abuts against the bolt assembly, and the elastic preload of the manual unlocking component acting on the bolt assembly is directed toward the telescopic drive member. The manual unlocking assembly includes an unlocking bracket and a spring connecting the unlocking bracket and the lock body assembly. The unlocking bracket includes a hinge portion, an unlocking arm extending from the hinge portion toward the bolt assembly, a connecting arm protruding from the hinge portion toward the lock body assembly, and a driving arm opposite to the protruding direction of the unlocking arm. The spring connects the lock body assembly and the connecting arm. Under the action of an external force, the driving arm drives the unlocking arm to unlock and move the bolt assembly. The connecting arm protrudes toward the upper wall of the lock body, and the spring is located on the outer side of the lock body.

2. The door lock device according to claim 1, characterized in that, The telescopic drive is configured as an electric push rod mounted on the lock body assembly.

3. The door lock device according to claim 1, characterized in that, The latch assembly includes a fixed plate located within the lock body assembly and an adapter plate protruding from the lock body assembly. The adapter plate and the fixed plate are fixedly connected. The movable mechanism is provided with an elongated adjustment hole. The movable mechanism is detachably connected to the adapter plate by a fastener passing through the adjustment hole. The sensing mechanism is located in the length direction of the adjustment hole.

4. The door lock device according to claim 3, characterized in that, The sensing mechanism includes a mechanical contact switch installed on the elevator door operator, and the movable mechanism is provided with a pin assembly that cooperates with the mechanical contact switch. The mechanical contact switch is located in the moving direction of the pin assembly.

5. The door lock device according to claim 3, characterized in that, The sensing mechanism also includes a proximity switch installed on the elevator door operator. The movable mechanism is provided with a trigger rod that cooperates with the proximity switch. The proximity switch is located on the side of the lock body assembly, and the trigger rod extends toward one side of the lock body assembly. The sensing area of ​​the proximity switch is located within the range of motion of the trigger rod.

6. An elevator door operator, characterized in that, The device includes a door operator assembly, a control system installed on the door operator assembly, and a door lock device as described in any one of claims 1 to 5, wherein the lock body assembly is fixedly connected to and fitted to the door operator assembly, and the bolt extends out of the door operator assembly when the telescopic drive member extends.

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