Door lock with good safety

Abstract

The utility model discloses a door lock with good safety. The door lock comprises a lock seat, an inclined tongue assembly, a locking piece, a locking tongue piece and a manual driving mechanism. When two-way door opening is needed in the door locking state, the manual driving mechanism is used for directly driving the locking tongue piece to retract into the lock base and be separated from the locking tongue groove of the door frame, the locking tongue piece is linked with the locking piece to unlock swing of the latch bolt body in the retracting process, and a user applies force to rotate the door body in any direction. The latch bolt body can be propped by the groove wall of the latch bolt groove to swing to the first position or the second position and is directly propped and compressed into the lock seat, so that bidirectional door opening can be quickly realized, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the field of door locks, in particular to a door lock with good safety. Background Art

[0002] There is a door lock applicable to a two-way door, which includes a lock seat, a latch bolt assembly, a locking member, a locking tongue member, an electric drive assembly and an electric control module. The latch bolt assembly and the locking tongue member can be telescopically arranged on the lock seat, the latch bolt assembly has a swingable latch bolt body, the latch bolt body has a first abutting top surface and a second abutting top surface arranged at an acute angle, and the electric drive assembly can drive the locking tongue member to extend and retract and control the locking member to lock or unlock the swing of the latch bolt body. The above door lock is installed on the two-way door. When the two-way door is closed in the forward direction, the door frame abuts against the first abutting top surface, so that the latch bolt body swings to the first position. At this time, the first abutting top surface is inclined relative to the telescopic direction of the latch bolt assembly, and the door frame can press the latch bolt body to retract into the lock seat, and then the latch bolt body is reset and extended to be inserted into the latch bolt groove of the door frame. Similarly, when the two-way door is closed in the reverse direction, the door frame abuts against the second abutting top surface, so that the latch bolt body swings to the second position and is pressed into the lock seat, and then the latch bolt body is reset and extended to be inserted into the latch bolt groove of the door frame.

[0003] The electric control module detects the extension and retraction of the latch bolt assembly, controls the electric drive assembly to drive the locking tongue to extend out of the lock seat and insert into the locking tongue groove of the door frame. During the door locking process, the locking member locks the swing of the latch bolt body to achieve safe door locking. When the door needs to be opened, the electric control module drives the latch bolt body to retract into the lock seat and unlock the locking member through the electric drive assembly, so that the door can be opened in both directions.

[0004] However, in an emergency situation of power outage, the electronic control module and the electric drive assembly cannot operate. At this time, the door lock may not be able to achieve two-way door opening. The user may be affected in escape efficiency in a panic, and there is still room for improvement in safety. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a door lock with good safety, which can quickly realize two-way door opening in the case of power failure when installed on a two-way door, thereby improving safety.

[0006] The door lock with good safety according to the embodiment of the utility model comprises a lock seat, a latch bolt assembly, a locking member, a locking tongue member and a manual drive mechanism. The latch bolt assembly comprises a connecting member and a latch bolt body, the latch bolt body is movably arranged on the connecting member and can swing relative to the connecting member, the latch bolt assembly is telescopically arranged on the lock seat and can make the latch bolt body extend or retract into the lock seat, the latch bolt body has a first abutting surface and a second abutting surface arranged at an acute angle; when the first abutting surface is pressed, the latch bolt body can swing to a first position, in which the first abutting surface is inclined relative to the telescopic axis of the latch bolt assembly; when the second abutting surface is pressed, the latch bolt body can swing to a second position, in which the second abutting surface is inclined relative to the telescopic axis of the latch bolt assembly; The two abutting surfaces are inclined relative to the telescopic axis of the oblique tongue assembly; the locking member is movably arranged on the lock seat and can move to a locking position and an unlocking position, in which the locking member locks the position of the oblique tongue body relative to the connecting member, and in the unlocking position, the locking member unlocks the position of the oblique tongue body relative to the connecting member; the locking tongue member is telescopically arranged on the lock seat and can extend or retract into the lock seat, and when the locking tongue member is retracted, it can link the locking member to move from the locking position to the unlocking position; a manual driving mechanism is arranged on the lock seat and can drive the locking tongue member to retract.

[0007] The door lock with good safety according to the embodiment of the utility model has at least the following beneficial effects: when the door needs to be opened in two directions when the door is locked, a manual drive mechanism is used to directly drive the locking tongue piece to retract into the lock seat and disengage from the locking tongue groove of the door frame, and during the retraction process of the locking tongue piece, the locking piece is simultaneously linked to unlock the swing of the inclined tongue body, and the user applies force to rotate the door body in any direction, and the inclined tongue body can be pushed by the groove wall of the inclined tongue groove to swing to the first position or the second position and be directly pushed and compressed into the lock seat, thereby enabling rapid two-way door opening and improving safety.

[0008] According to some embodiments of the utility model, the locking tongue is provided with a linkage portion, and the locking member is provided with a linkage matching portion. When the locking tongue is retracted, the linkage portion can abut against the linkage matching portion to drive the locking member to switch from a locked position to an unlocked position.

[0009] According to some embodiments of the utility model, the locking member is pivotally connected to the lock seat, the linkage part is a linkage block, the linkage matching part is a linkage rod, the linkage block and one end of the linkage rod are opposite to each other along the extension and retraction direction of the locking tongue piece, and one end of the linkage rod is located on one side of the linkage block along the retraction direction of the locking tongue piece.

[0010] According to some embodiments of the utility model, the locking member is provided with a limiting portion, and the inclined tongue body is provided with a limiting matching portion, and in the locking position, the limiting portion is connected to the limiting matching portion; in the unlocking position, the limiting portion is separated from the limiting matching portion; the limiting portion is a limiting rod, and the limiting matching portion is a limiting groove.

[0011] According to some embodiments of the present invention, a locking reset member is further included, wherein the locking reset member is disposed between the locking member and the lock seat and can drive the locking member to move from the unlocking position to the locking position.

[0012] According to some embodiments of the utility model, it also includes a transmission mechanism, which is arranged on the lock seat, and the manual drive mechanism can drive the locking tongue member to retract and retract through the transmission mechanism; the transmission mechanism includes a main transmission member and a locking tongue pull wheel, the locking tongue pull wheel is pivotally connected to the lock seat, the locking tongue pull wheel has a locking tongue pull rod, the locking tongue member is provided with a pull groove, one end of the locking tongue pull rod is inserted into the pull groove, the main transmission member is pivotally connected to the lock seat and is used to drive the locking tongue pull wheel to rotate, and the manual drive mechanism can drive the main transmission member to swing.

[0013] According to some embodiments of the utility model, the manual drive mechanism includes a lock core assembly, the lock core assembly is rotatably provided with a lock core shifting piece, the main transmission member is provided with a lock core matching portion along the radial side of the rotation axis, and the lock core shifting piece and the lock core matching portion are circumferentially opposite to each other along the rotation axis of the lock core shifting piece.

[0014] According to some embodiments of the utility model, the manual drive mechanism includes a handle dial wheel, the transmission mechanism also includes a handle transmission structure, the handle dial wheel is pivotally connected to the lock seat, the handle dial wheel is provided with a handle mounting portion, and the handle dial wheel drives the main transmission component to rotate through the handle transmission structure.

[0015] According to some embodiments of the present invention, the handle transmission structure includes a first handle transmission member and a second handle transmission member, the first handle transmission member is connected to a handle dial wheel, the handle dial wheel can drive the first handle transmission member to rotate, the middle part of the second handle transmission member is pivotally connected to the lock seat, one end of the first handle transmission member is provided with a first tooth portion, one end of the second handle transmission member is provided with a second tooth portion, the first tooth portion is meshed with the second tooth portion, and the other end of the second handle transmission member is provided with a transmission toggle block, the main transmission member is provided with a transmission matching portion along the radial side of the rotation axis, and the transmission toggle block and the transmission matching portion are opposite to each other along the circumferential direction of the rotation axis of the second handle transmission member.

[0016] According to some embodiments of the present utility model, the manual drive mechanism further comprises a lock dial reset component, which is disposed between the lock seat and the locking tongue dial wheel and is used to drive the locking tongue dial wheel to reset and rotate.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 It is a three-dimensional schematic diagram of a door lock according to an embodiment of the utility model;

[0020] Figure 2 This is a three-dimensional schematic diagram of a door lock according to an embodiment of the utility model with part of the lock seat removed;

[0021] Figure 3 It is a front view schematic diagram of the door lock of the embodiment of the utility model after removing part of the lock seat and the handle transmission structure;

[0022] Figure 4 This is a three-dimensional schematic diagram of a door lock according to an embodiment of the utility model with part of the lock seat removed;

[0023] Figure 5 It is an exploded schematic diagram of a partial structure of a door lock according to an embodiment of the utility model;

[0024] Figure 6 It is a three-dimensional schematic diagram of the inclined tongue assembly and the inclined tongue resetting member according to the embodiment of the utility model.

[0025] Reference numerals:

[0026] Lock seat 100;

[0027] The inclined tongue assembly 200, the connecting member 210, the inclined tongue body 220, the first abutting top surface 221, the second abutting top surface 222, and the limiting groove 223;

[0028] Locking member 300, linkage matching portion 310, limiting rod 320;

[0029] Locking tongue 400, linkage portion 410, and pull groove 420;

[0030] Manual drive mechanism 500, lock core assembly 510, lock core toggle member 511, handle dial wheel 520, handle mounting portion 521, lock toggle reset member 530, main transmission reset member 540;

[0031] Locking reset member 610, latch tongue reset member 620;

[0032] Transmission mechanism 700, main transmission member 710, lock core matching part 711, transmission matching part 712, locking tongue push wheel 720, locking tongue push rod 721, handle transmission structure 730, first handle transmission member 731, second handle transmission member 732;

[0033] Electronic control module 800, main control board 810, lock sensor 820, gear sensor 830, latch sensor 840, lock dial sensor 850, insurance sensor 860;

[0034] Electric drive assembly 900, motor 910, electric drive gear set 920;

[0035] Insurance tongue 1000. DETAILED DESCRIPTION

[0036] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0037] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the 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 cannot be understood as a limitation on the present invention.

[0038] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0039] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0040] Reference Figures 1 to 6, which is a door lock with good safety according to an embodiment of the utility model, comprises a lock base 100, a latch bolt assembly 200, a locking member 300, a locking tongue member 400 and a manual drive mechanism 500. The latch bolt assembly 200 comprises a connecting member 210 and a latch bolt body 220. The latch bolt body 220 is movably arranged on the connecting member 210 and can swing relative to the connecting member 210. The latch bolt assembly 200 is telescopically arranged on the lock base 100 and can make the latch bolt body 220 extend or retract into the lock base 100. The latch bolt body 220 has a first abutting top surface 221 and a second abutting top surface 222 arranged at an acute angle. When the first abutting top surface 221 is pressed, the latch bolt body 220 can swing to a first position. In the first position, the first abutting top surface 221 is inclined relative to the telescopic axis of the latch bolt assembly 200. When the second abutting top surface 222 is pressed, the latch bolt body 220 can swing to a second position. In the second position The second abutting top surface 222 is inclined relative to the telescopic axis of the oblique tongue assembly 200; the locking member 300 is movably arranged on the lock base 100 and can move to a locked position and an unlocked position. In the locked position, the locking member 300 locks the position of the oblique tongue body 220 relative to the connecting member 210, and in the unlocked position, the locking member 300 unlocks the position of the oblique tongue body 220 relative to the connecting member 210; the locking tongue member 400 is telescopically arranged on the lock base 100 and can extend or retract into the lock base 100. When the locking tongue member 400 retracts, it can link the locking member 300 to move from the locked position to the unlocked position; the manual driving mechanism 500 is arranged on the lock base 100 and can drive the locking tongue member 400 to retract.

[0041] When the door needs to be opened in both directions when it is locked, the manual drive mechanism 500 is used to directly drive the locking tongue 400 to retract into the lock seat 100 and disengage from the locking tongue groove of the door frame. During the retraction process of the locking tongue 400, the locking member 300 is simultaneously linked to unlock the swing of the inclined tongue body 220. The user applies force to rotate the door body in any direction, and the inclined tongue body 220 can be pushed by the groove wall of the inclined tongue groove to swing to the first position or the second position and be directly pushed and compressed into the lock seat 100, thereby realizing rapid two-way door opening and improving safety.

[0042] Specifically, the oblique tongue assembly 200 can be telescopically moved relative to the lock base 100 through a slider slot structure, and can also be telescopically moved relative to the lock base 100 through a guide column guide sleeve and guide hole structure. The locking tongue member 400 can be telescopically moved relative to the lock base 100 through a slider slot structure, and can also be telescopically moved relative to the lock base 100 through a guide column guide sleeve and guide hole structure.

[0043] In the embodiment, the locking tongue 400 is provided with a linkage part 410, and the locking member 300 is provided with a linkage matching part 310. When the locking tongue 400 is retracted, the linkage part 410 can abut against the linkage matching part 310 to drive the locking member 300 to switch from the locked position to the unlocked position. In the above structure, when the locking tongue 400 is retracted, the linkage part 410 abuts against the linkage matching part 310 to drive the locking member 300 to move from the locked position to the unlocked position to lock the swing of the oblique tongue body 220. The structure is simple, responsive and efficient, and the transmission function is realized through the mechanical structure. Specifically, the telescopic direction of the locking tongue 400 is the same as the telescopic direction of the oblique tongue assembly 200.

[0044] In the embodiment, the locking member 300 is pivotally connected to the lock base 100, the linkage portion 410 is a linkage block, the linkage matching portion 310 is a linkage rod, the linkage block and one end of the linkage rod are opposite to each other along the extension direction of the locking tongue member 400, and one end of the linkage rod is located on one side of the linkage block along the retraction direction of the locking tongue member 400. When the locking tongue member 400 is retracted, the linkage block can abut against one end of the linkage rod, and the locking member 300 is pushed to rotate through the linkage rod, so that the locking member 300 rotates from the locked position to the unlocked position. The linkage structure is simple and labor-saving, and the linear motion of the locking tongue member 400 drives the locking member 300 to rotate.

[0045] It is conceivable that the linkage portion 410 and the linkage matching portion 310 can also be other structures. For example, the linkage portion 410 is a rack extending along the extension and retraction direction of the locking tongue 400, and the linkage matching portion 310 is a gear arranged on the locking member 300. The rack is meshed with the gear, so that when the locking tongue 400 is extended or retracted, it can directly drive the locking member 300 to rotate to switch from the locked position to the unlocked position.

[0046] In the embodiment, the locking member 300 is provided with a limiting portion, and the oblique tongue body 220 is provided with a limiting matching portion. In the locked position, the limiting portion is connected to the limiting matching portion; in the unlocked position, the limiting portion is separated from the limiting matching portion. The above structure is simple in structure and can realize that the locking member 300 can lock or unlock the position of the oblique tongue body 220 relative to the connecting member 210. The structure is simple and easy to implement.

[0047] Specifically, the limiting part is a limiting rod 320, and the limiting matching part is a limiting groove 223. When the inclined tongue body 220 is in the locked position, the limiting rod 320 is accommodated in the limiting groove 223, and the inclined tongue body 220 can be extended and retracted along the limiting rod 320 but cannot swing relative to the connecting member 210; when the locking member 300 rotates until the limiting rod 320 is separated from the limiting groove 223, the inclined tongue body 220 can swing and switch between the first position and the second position.

[0048] It is conceivable that when the locking member 300 is switched between the locked position and the unlocked position by moving, for example, the locking member 300 realizes the connection and separation of the limiting part and the limiting matching part through the slider groove structure. At this time, the linkage part 410 can be a bevel block, and the linkage matching part 310 is a part of the locking member 300. When the locking tongue member 400 moves, the locking member 300 is pushed by the bevel block to move and switch from the locked position to the unlocked position.

[0049] It is conceivable that the limiting part and the limiting matching part can also be other structures, for example, the limiting part can also be the limiting groove 223, in which case the limiting matching part can be the limiting rod 320; or the limiting part is a bar-shaped hole, and the limiting matching part is a slider, when the locking member 300 is in the locking position, the slider is slidably inserted in the bar-shaped hole and can move along the bar-shaped hole, at which time the oblique tongue body 220 can be normally extended and retracted but cannot swing. When the locking member 300 is in the unlocking position, the slider is separated from the bar-shaped hole, so that the oblique tongue body 220 can swing.

[0050] Specifically, the connecting member 210 is provided with an arcuate groove, and the oblique tongue body 220 is provided with an arcuate portion, so that the oblique tongue body 220 can swing relative to the connecting member 210. It is conceivable that the oblique tongue body 220 can also be pivotally connected to the connecting member 210, so that the oblique tongue body 220 can swing relative to the connecting member 210.

[0051] In the embodiment, a locking reset member 610 is further included, which is arranged between the locking member 300 and the lock seat 100 and can drive the locking member 300 to move from the unlocked position to the locked position. The locking reset member 610 is arranged to facilitate the locking member 300 to automatically switch from the unlocked position to the locked position, and the structure is simple and easy to implement. Specifically, the locking reset member 610 is a torsion spring, which drives the locking member 300 to rotate and reset. It is conceivable that the locking reset member 610 can also be a spring, one end of which abuts against the lock seat 100, and the other end abuts against the limit rod 320 of the locking member 300, and can also push the limit rod 320 to make the locking member 300 rotate and reset.

[0052] In the embodiment, a transmission mechanism 700 is further included, and the transmission mechanism 700 is disposed on the lock seat 100. The manual driving mechanism 500 can drive the locking tongue 400 to extend and retract through the transmission mechanism 700. The manual driving mechanism 500 drives the locking tongue 400 to extend and retract through the transmission mechanism 700, which facilitates the layout of the internal accessories of the door lock and adjusts the motion relationship between the locking tongue 400 and the manual driving mechanism 500.

[0053] In the embodiment, the transmission mechanism 700 includes a main transmission member 710 and a locking tongue dial wheel 720, the locking tongue dial wheel 720 is pivotally connected to the lock base 100, the locking tongue dial wheel 720 has a locking tongue lever 721, the locking tongue member 400 is provided with a lever slot 420, one end of the locking tongue lever 721 is inserted into the lever slot 420, the main transmission member 710 is pivotally connected to the lock base 100 and is used to drive the locking tongue dial wheel 720 to rotate, and the manual driving mechanism 500 can drive the main transmission member 710 to rotate. By inserting the lever into the lever slot 420, the rotation of the locking tongue dial wheel 720 can be converted into the telescopic movement of the locking tongue member 400, and the wide range telescopic movement of the locking tongue member 400 can be achieved without the locking tongue dial wheel 720 rotating at a large angle.

[0054] Specifically, the rotation axis of the main transmission member 710 is spaced from the rotation axis of the locking tongue dial wheel 720, a hook is provided at one end of the main transmission member 710, and a booster block is convexly provided on the outer periphery of the locking tongue dial wheel 720. The main transmission member 710 rotates until the hook pushes the booster block, thereby rotating the locking tongue dial wheel 720, and further retracting the locking tongue member 400. The above-mentioned main transmission member 710 and the locking tongue dial wheel 720 enable the main transmission member 710 to rotate at a small angle, and then the locking tongue dial wheel 720 can be pushed to rotate at a large angle, so that the user can manually unlock the door lock relatively easily.

[0055] It is conceivable that the main transmission member 710 can also drive the locking tongue pulley 720 to rotate in other ways. For example, the outer periphery of the main transmission member 710 is provided with gears, and the outer periphery of the locking tongue pulley 720 is provided with gears, and the two gears are meshed, so that the rotation of the main transmission member 710 drives the locking tongue pulley 720 to rotate.

[0056] In the embodiment, the manual drive mechanism 500 includes a lock core assembly 510, and the lock core assembly 510 is rotatably provided with a lock core toggle member 511, and the main transmission member 710 is provided with a lock core matching portion 711 along the radial side of the rotation axis, and the lock core toggle member 511 and the lock core matching portion 711 are circumferentially opposite to each other along the rotation axis of the lock core toggle member 511. Specifically, when the lock core toggle member 511 rotates, it will abut against the lock core matching portion 711 of the main transmission member 710, thereby pushing the main transmission member 710 to rotate, and finally driving the locking tongue member 400 to retract, so that the user can use a physical key to open the door in both directions. Specifically, the lock core assembly 510 is an existing lock core assembly 510 on the market, which can be a key type, a fingerprint type, or a voice control type, etc., which will not be repeated here, and the lock core matching portion 711 is a part of the main transmission member 710.

[0057] In an embodiment, the manual drive mechanism 500 includes a handle dial 520, and the transmission mechanism 700 also includes a handle transmission structure 730. The handle dial 520 is pivotally connected to the lock seat 100, and the handle dial 520 is provided with a handle mounting portion 521. The handle dial 520 drives the main transmission member 710 to rotate through the handle transmission structure 730. When the door lock is installed on the door body, the handle of the door body is connected to the handle mounting portion 521 of the handle dial 520, so that the handle and the handle dial 520 can rotate synchronously. When the handle is rotated, the handle dial 520 drives the main transmission member 710 to rotate through the handle transmission structure 730, and then drives the locking tongue member 400 to retract. The above structure facilitates the use of the handle and can also unlock the function of two-way door opening, thereby improving the user experience and emergency avoidance capabilities.

[0058] Specifically, the handle can be provided with a fingerprint lock cylinder, a key lock cylinder or other common lock cylinders on the market.

[0059] In the embodiment, the handle transmission structure 730 includes a first handle transmission component 731 and a second handle transmission component 732. The first handle transmission component 731 is connected to the handle dial 520, and the handle dial 520 can drive the first handle transmission component 731 to rotate. The middle part of the second handle transmission component 732 is pivotally connected to the lock seat 100. One end of the first handle transmission component 731 is provided with a first tooth portion, and one end of the second handle transmission component 732 is provided with a second tooth portion, and the first tooth portion is meshed with the second tooth portion. The other end of the second handle transmission component 732 is provided with a transmission toggle block, and the main transmission component 710 is provided with a transmission matching portion 712 along the radial side of the rotation axis, and the transmission toggle block and the transmission matching portion 712 are opposite to each other along the circumferential direction of the rotation axis of the second handle transmission component 732. When the handle drives the handle dial wheel 520 to rotate, the handle dial wheel 520 drives the first handle transmission member 731 to rotate, and the first handle transmission member 731 engages with the first tooth portion and the second tooth portion to drive the second handle transmission member 732 to rotate. At this time, the transmission dial block of the second handle transmission member 732 can dial the transmission matching portion 712 on the main transmission member 710, so that the main transmission member 710 can rotate, and finally the locking tongue member 400 is retracted, realizing the function of using the handle to unlock the door lock and open the door in both directions. It has good safety, relatively simple structure, and is easy to use. In addition, the two-way door opening function of the door lock is not affected when the lock core assembly 510 is used to unlock the door lock.

[0060] Specifically, a key block is convexly provided on the outer periphery of the handle dial wheel 520, and the first handle transmission member 731 is provided with an inner hole, the handle dial wheel 520 is penetrated through the inner hole, and a key slot is provided at the inner hole, and the key block is accommodated in the key slot, so that the handle dial wheel 520 can drive the first handle transmission member 731 to rotate. Specifically, the width of the key slot is much larger than the width of the key block, which is convenient for the handle to have a small amount of idle rotation angle. It is conceivable that a key slot can also be provided on the outer periphery of the handle dial wheel 520, and a key block can be provided in the inner hole of the first handle transmission member 731, so that the handle dial wheel 520 can drive the first handle transmission member 731 to rotate.

[0061] It is conceivable that the handle transmission structure 730 can also be other structures. For example, the handle transmission structure 730 is a gear set, and the handle dial 520 drives one of the gears of the gear set to rotate, and one of the gears of the gear set rotates synchronously with the main transmission member 710. Through gear transmission, the handle dial 520 drives the main transmission member 710 to rotate.

[0062] In the embodiment, the manual drive mechanism 500 further includes a lock dial reset member 530, which is disposed between the lock seat 100 and the lock tongue dial wheel 720 and is used to drive the lock tongue dial wheel 720 to reset and rotate. The lock dial reset member 530 is provided to drive the lock tongue dial wheel 720 to reset and to assist in driving the lock tongue member 400 to extend out of the lock seat 100. Specifically, the lock dial reset member 530 is a torsion spring, which drives the lock tongue dial wheel 720 to reset and rotate, and has a simple structure and is easy to implement. It is conceivable that the lock dial reset member 530 can also be a spring, one end of which abuts against the lock seat 100, and the other end of which abuts against the lock tongue dial rod 721, and can drive the lock tongue dial wheel 720 to reset and rotate.

[0063] In an embodiment, the manual drive mechanism 500 further includes a main transmission reset member 540, which is disposed between the lock seat 100 and the main transmission member 710 and is used to drive the main transmission member 710 to reset and rotate. The main transmission reset member 540 is provided to facilitate automatic rotation and reset of the main transmission member 710. Specifically, the main transmission reset member 540 is a torsion spring. It is conceivable that the main transmission reset member 540 may also be a spring.

[0064] It is conceivable that the manual drive mechanism 500 can also directly drive the locking tongue 400 to extend and retract. For example, the manual drive mechanism 500 is provided with a gear, and the locking tongue 400 is provided with a rack. The gear and rack are meshed. When the manual drive mechanism 500 rotates, the gear directly drives the locking tongue 400 to extend and retract.

[0065] In the embodiment, a latch bolt reset member 620 is provided between the lock base 100 and the latch bolt assembly 200, and the latch bolt reset member 620 can drive the latch bolt assembly 200 to extend. The latch bolt reset member 620 is provided to facilitate the latch bolt assembly 200 to automatically reset and extend when locking the door, and insert into the latch bolt groove. Specifically, the latch bolt reset member 620 is a spring. It is conceivable that the latch bolt reset member 620 can also be an elastic pick.

[0066] Specifically, the lock base 100 is provided with a first clearance hole and a second clearance hole, the oblique tongue assembly 200 is inserted into the first clearance hole, and the locking tongue member 400 is inserted into the second clearance hole. The oblique tongue body 220 is provided with a reset surface, and the reset surface is perpendicular to the second top surface 222. When the oblique tongue reset member 620 drives the oblique tongue body 220 to extend, the reset surface abuts against the periphery of the opening of the first clearance hole, so that the oblique tongue body 220 automatically swings and resets to the first position. When the oblique tongue body 220 is in the first position, the limiting rod 320 can enter the limiting groove 223. When the oblique tongue body 220 is in the second position, the limiting rod 320 cannot enter the limiting groove 223. Reduce the risk of opening the door by illegal means outside the door.

[0067] It is conceivable that two limiting grooves 223 may be provided, and when the latch bolt body 220 is in the first position, the limiting rod 320 may enter one of the limiting grooves 223 to lock the latch bolt body 220 from swinging; when the latch bolt body 220 is in the second position, the limiting rod 320 may enter the other limiting groove 223 to lock the latch bolt body 220 from swinging. That is, the locking mechanism may lock or unlock the first position or the second position of the latch bolt body 220.

[0068] Specifically, the door lock is further provided with a safety tongue 1000 and a safety dial wheel. The safety dial wheel is pivotally connected to the door lock and is used to dial the safety tongue 1000 to extend or retract, thereby improving the safety of the door lock.

[0069] Furthermore, the door lock is also provided with an electric control module 800 and an electric drive assembly 900. The electric drive assembly 900 includes a motor 910 and an electric drive gear set 920. The motor 910 can drive the electric drive gear set 920 to rotate, and one of the gears of the electric drive gear set 920 can drive the locking tongue thumbwheel 720 to rotate, and can push the locking member 300 to move from the locked position to the unlocked position, thereby improving the intelligence of the door lock.

[0070] Specifically, the electric control module 800 is provided with a main control board 810, a locking sensor 820, a gear sensor 830, a latch bolt sensor 840, a locking dial sensor 850 and a safety sensor 860. The locking sensor 820 is used to detect the position of the locking member 300, the gear sensor 830 is used to detect the rotation angle of the electric drive gear set 920, the latch bolt sensor 840 is used to detect the telescopic movement of the latch bolt, and the locking dial sensor 850 is used to detect the position of the locking bolt dial wheel 720. The locking sensor 820, the gear sensor 830, the latch bolt sensor 840 and the locking dial sensor 850 are all electrically connected to the main control board 810, and the motor 910 is also electrically connected to the main control board 810.

[0071] Specifically, the gear sensor 830, the oblique tongue sensor 840 and the locking dial sensor 850 are swing detection switches, and the locking sensor 820 is a press switch. The locking tongue dial wheel 720 is provided with an arc-shaped swing block, which can contact the swing arm of the swing detection switch, thereby detecting the position of the locking tongue dial wheel 720. In addition, the arc-shaped swing block is relatively long, which can facilitate the handle to rotate to a vertical state under the action of its own weight.

[0072] Specifically, the door lock of the utility model is used as follows: the door lock is installed on a door body that can be opened and closed in both directions. When the door body is opened, the locking member 300 is in an unlocked state. During the door closing process, the door frame abuts against the first abutting surface 221 or the second abutting surface 222 of the inclined tongue body 220, so that the inclined tongue body 220 swings to the first position or the second position, and is then pressed into the lock seat 100, and then the locking tongue assembly is reset and extended under the drive of the inclined tongue reset member 620, and inserted into the inclined tongue groove of the door frame. At this time, the inclined tongue sensor 840 senses the telescopic movement of the inclined tongue assembly 200, the main control board 810 controls the electric drive assembly 900 to drive the locking tongue dial wheel 720 to rotate, and the locking dial reset member 530 assists the locking tongue member 400 to move, thereby causing the locking tongue member 400 to extend, during which the electric drive gear set 920 releases the locking member 300, and the locking reset member 610 drives the locking member 300 to reset to the locked position, so that the inclined tongue body 220 cannot swing.

[0073] When the door needs to be opened, the electric mode can control the electric drive assembly 900 to retract the locking tongue 400, and at the same time the electric drive gear set 920 pushes the locking member 300 to move from the locked position to the unlocked position, or the locking tongue 400 directly pushes the locking member 300 to rotate to the unlocked position. At this time, when the door body is subjected to positive or reverse force, the oblique tongue body 220 can be pushed and compressed into the lock seat 100 to achieve two-way door opening. When the electric drive assembly 900 is used, the manual drive mechanism 500 can be not interfered.

[0074] One way to manually open the door is to rotate the handle, and the handle dial wheel 520 drives the main transmission member 710 to rotate at a small angle through the first handle transmission member 731 and the second handle transmission member 732, and the main transmission member 710 drives the locking tongue dial wheel 720 to rotate. At this time, the locking tongue member 400 retracts, and the locking member 300 is pushed to rotate to the unlocking position during the retraction of the locking tongue member 400. At this time, when the door body is subjected to positive or reverse force, the oblique tongue body 220 can be pushed and compressed into the lock seat 100 to achieve two-way door opening. After releasing the handle, the main transmission reset member 540 drives the main transmission member 710 to reset. When using the manual drive mechanism 500, it is not necessary to interfere with the electric drive assembly 900.

[0075] Another way to manually open the door is to use the lock core assembly 510. When the lock core toggle member 511 rotates, it pushes the main transmission member 710 to rotate at a small angle. The main transmission member 710 drives the locking tongue toggle wheel 720 to rotate. At this time, the locking tongue member 400 retracts. During the retraction of the locking tongue member 400, it pushes the locking member 300 to rotate to the unlocking position. At this time, when the door body is subjected to positive or reverse force, the oblique tongue body 220 can be pushed and compressed into the lock seat 100 to achieve two-way door opening. After the lock core is released, the main transmission reset member 540 drives the main transmission member 710 to reset. When the manual drive mechanism 500 is used, the electric drive assembly 900 can be not interfered.

[0076] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0077] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A door lock with good safety, characterized in that: include: Lock seat (100); The oblique tongue assembly (200) comprises a connecting member (210) and an oblique tongue body (220), wherein the oblique tongue body (220) is movably arranged on the connecting member (210) and can swing relative to the connecting member (210), the oblique tongue assembly (200) is telescopically arranged on the lock seat (100) and can make the oblique tongue body (220) extend out of or retract into the lock seat (100), and the oblique tongue body (220) has a first abutting top surface (221) and a second abutting top surface (221) arranged at an acute angle. When the first top-affecting surface (221) is pressed, the inclined tongue body (220) can swing to a first position, and in the first position, the first top-affecting surface (221) is inclined relative to the telescopic axis of the inclined tongue assembly (200); when the second top-affecting surface (222) is pressed, the inclined tongue body (220) can swing to a second position, and in the second position, the second top-affecting surface (222) is inclined relative to the telescopic axis of the inclined tongue assembly (200); a locking member (300) movably disposed on the lock seat (100) and capable of moving to a locking position and an unlocking position, wherein in the locking position, the locking member (300) locks the position of the oblique tongue body (220) relative to the connecting member (210), and in the unlocking position, the locking member (300) unlocks the position of the oblique tongue body (220) relative to the connecting member (210); A locking tongue (400) is telescopically arranged on the lock seat (100) and can extend or retract into the lock seat (100); when the locking tongue (400) is retracted, it can link with the locking member (300) to move from the locking position to the unlocking position; A manual drive mechanism (500) is arranged on the lock seat (100) and can drive the locking tongue member (400) to retract.

2. The door lock with good safety according to claim 1, characterized in that: The locking tongue (400) is provided with a linkage portion (410), and the locking member (300) is provided with a linkage matching portion (310). When the locking tongue (400) is retracted, the linkage portion (410) can abut against the linkage matching portion (310) to drive the locking member (300) to switch from a locked position to an unlocked position.

3. The door lock with good safety according to claim 2, characterized in that: The locking member (300) is pivotally connected to the lock seat (100), the linkage portion (410) is a linkage block, the linkage matching portion (310) is a linkage rod, the linkage block and one end of the linkage rod are opposite to each other along the extension direction of the locking tongue member (400), and one end of the linkage rod is located on one side of the linkage block along the retraction direction of the locking tongue member (400).

4. The door lock with good safety according to claim 1, characterized in that: The locking member (300) is provided with a limiting portion, and the oblique tongue body (220) is provided with a limiting matching portion. In the locking position, the limiting portion is connected to the limiting matching portion; in the unlocking position, the limiting portion is separated from the limiting matching portion; the limiting portion is a limiting rod (320), and the limiting matching portion is a limiting groove (223).

5. The door lock with good safety according to claim 1, characterized in that: The invention also comprises a locking reset member (610), wherein the locking reset member (610) is arranged between the locking member (300) and the lock seat (100) and can drive the locking member (300) to move from the unlocking position to the locking position.

6. The door lock with good safety according to claim 1, characterized in that: The invention also comprises a transmission mechanism (700), wherein the transmission mechanism (700) is arranged on the lock seat (100), and the manual driving mechanism (500) can drive the locking tongue member (400) to extend and retract through the transmission mechanism (700); the transmission mechanism (700) comprises a main transmission member (710) and a locking tongue thumbwheel (720), wherein the locking tongue thumbwheel (720) is pivotally connected to the lock seat (100), the locking tongue thumbwheel (720) has a locking tongue thumbwheel (721), the locking tongue member (400) is provided with a thumb slot (420), one end of the locking tongue thumbwheel (721) is inserted into the thumb slot (420), the main transmission member (710) is pivotally connected to the lock seat (100) and is used to drive the locking tongue thumbwheel (720) to rotate, and the manual driving mechanism (500) can drive the main transmission member (710) to swing.

7. The door lock with good safety according to claim 6, characterized in that: The manual drive mechanism (500) comprises a lock core assembly (510), the lock core assembly (510) is rotatably provided with a lock core shifting member (511), the main transmission member (710) is provided with a lock core matching portion (711) along one radial side of the rotation axis, and the lock core shifting member (511) and the lock core matching portion (711) are circumferentially opposite to each other along the rotation axis of the lock core shifting member (511).

8. The door lock with good safety according to claim 6, characterized in that: The manual drive mechanism (500) comprises a handle dial wheel (520), and the transmission mechanism (700) further comprises a handle transmission structure (730). The handle dial wheel (520) is pivotally connected to the lock seat (100), and the handle dial wheel (520) is provided with a handle mounting portion (521). The handle dial wheel (520) drives the main transmission member (710) to rotate through the handle transmission structure (730).

9. The door lock with good safety according to claim 8, characterized in that: The handle transmission structure (730) includes a first handle transmission member (731) and a second handle transmission member (732), wherein the first handle transmission member (731) is connected to the handle dial wheel (520), and the handle dial wheel (520) can drive the first handle transmission member (731) to rotate, and the middle part of the second handle transmission member (732) is pivotally connected to the lock seat (100), and one end of the first handle transmission member (731) is provided with a first tooth portion, and one end of the second handle transmission member (732) is provided with a second tooth portion, and the first tooth portion is meshed with the second tooth portion, and the other end of the second handle transmission member (732) is provided with a transmission toggle block, and the main transmission member (710) is provided with a transmission matching portion (712) along the radial side of the rotation axis, and the transmission toggle block and the transmission matching portion (712) are opposite to each other along the circumferential direction of the rotation axis of the second handle transmission member (732).

10. The door lock with good safety according to claim 6, characterized in that: The manual drive mechanism (500) further comprises a lock reset member (530), wherein the lock reset member (530) is arranged between the lock seat (100) and the lock tongue push wheel (720) and is used to drive the lock tongue push wheel (720) to reset and rotate.

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