Door lock

Abstract

The utility model relates to the technical field of locks, and provides a door lock which comprises a lock shell, an inclined tongue locking piece and a closed tongue locking piece, the inclined tongue locking piece and the closed tongue locking piece are movably arranged in the lock shell, and the door lock comprises a clutch mechanism rotationally arranged on the lock shell; the latch bolt locking piece can move between a latch bolt locking position and a latch bolt unlocking position in a reciprocating mode, and the closed bolt locking piece can move between a closed bolt locking position and a closed bolt unlocking position in a reciprocating mode. When the clutch mechanism rotates by a first angle in the first direction, the tongue closing locking piece can be driven to move from the tongue closing unlocking position to the tongue closing locking position. When the clutch mechanism rotates by a second angle in the second direction opposite to the first direction, the clutch mechanism can drive the tongue closing locking piece to move from the tongue closing locking position to the tongue closing unlocking position and drive the inclined tongue locking piece to move from the inclined tongue locking position to the inclined tongue unlocking position, the first angle is smaller than the second angle, and the second angle is smaller than 360 degrees. According to the door lock, the rotation angle of a key or other non-key driving components is reduced when the lock door is opened.

Description

Technical Field

[0001] The present application relates to the technical field of locks, and more specifically, to a door lock. Background Art

[0002] Existing iron door locks are widely used on metal doors such as stainless steel doors or iron doors at the entrances of buildings, courtyards, and warehouses, as well as wooden doors at home entrances. The current pain point is that when people go out, although the inclined tongue closes automatically, it can be poked open with a card, and the closed tongue must be locked with a key. In order to solve the problem that the closed tongue can be locked mechanically without a key when going out, the prior art has designed a keyless closed tongue mechanical door locking technology (refer to the Chinese patent documents with application numbers 201811261412.5 and 202380009211.9, the PCT patent application document with application number PCT / CN2023 / 095388, the US patent document with application number US18 / 233336, and the US patent document with publication number US11781340 B2). However, in the prior art door locks with a locking tongue, the key needs to be rotated two circles (720°) when locking the door, and the key needs to be rotated three circles (1080°) when opening the door. The rotation angle of the key for locking and opening the door is too large, and the inclined tongue cannot be opened synchronously when operating the locking tongue, which is inconvenient to operate. Utility Model Content

[0003] In view of this, the present application provides a door lock that is easy to operate.

[0004] The present application provides a door lock, comprising a lock housing, a latch bolt locking member and a latch bolt locking member movably disposed in the lock housing, wherein the door lock comprises a clutch mechanism rotatably disposed in the lock housing;

[0005] The oblique tongue locking member can reciprocate between an oblique tongue locking position and an oblique tongue unlocking position, and the closed tongue locking member can reciprocate between a closed tongue locking position and a closed tongue unlocking position;

[0006] When the clutch mechanism rotates a first angle along a first direction, it can drive the closed tongue locking member to move from the closed tongue unlocking position to the closed tongue locking position. When the clutch mechanism rotates a second angle along a second direction opposite to the first direction, it can drive the closed tongue locking member to move from the closed tongue locking position to the closed tongue unlocking position and drive the oblique tongue locking member to move from the oblique tongue locking position to the oblique tongue unlocking position. The first angle is smaller than the second angle, and the second angle is smaller than 360°.

[0007] In some embodiments, the first angle and the second angle are both less than 180°.

[0008] In some embodiments, the clutch mechanism includes a latch bolt transmission member, and when the clutch mechanism rotates along the second direction by a second angle, it can drive the latch bolt transmission member to drive the latch bolt locking member to move from the latch bolt locking position to the latch bolt unlocking position.

[0009] In some embodiments, the clutch mechanism includes a closed tongue clutch rotatably disposed on the lock housing and a slanted tongue clutch disposed on the closed tongue clutch, the closed tongue clutch being used to drive the closed tongue locking member to reciprocate between a closed tongue locking position and a closed tongue unlocking position, and the slanted tongue clutch rotates with the closed tongue clutch to drive the slanted tongue locking member to move from the slanted tongue locking position to the slanted tongue unlocking position.

[0010] In some embodiments, the oblique tongue clutch is detachably disposed on the closed tongue clutch.

[0011] In some embodiments, the locking tongue clutch member includes a clutch sleeve rotatably disposed on the lock housing and a driving arm disposed on the outer peripheral side of the clutch sleeve, and the driving arm rotates with the clutch sleeve to drive the locking tongue locking member to reciprocate between a locking tongue locking position and a locking tongue unlocking position.

[0012] In some embodiments, the oblique tongue clutch comprises a drive ring detachably arranged on the outer peripheral side of the clutch sleeve and a dial head arranged on the outer peripheral side of the drive ring, wherein the dial head is used to drive the oblique tongue transmission member to drive the oblique tongue locking member to move from the oblique tongue locking position to the oblique tongue unlocking position.

[0013] In some embodiments, the oblique tongue transmission member includes a swing arm hinged to the closed tongue locking member, the oblique tongue locking member is provided with a swing arm limiting groove, the first end of the swing arm extends into the swing arm limiting groove, the second end of the swing arm is provided with a protrusion, and the dial head is used to contact and push the protrusion to rotate the swing arm.

[0014] In some embodiments, the door lock includes an indoor operating member arranged on the lock housing, the indoor operating member includes an indoor lock core and a driving head connected to the indoor lock core and extending toward the clutch mechanism, the driving head cooperates with the side of the clutch mechanism facing the room to drive the clutch mechanism to rotate along the first direction and the second direction.

[0015] In some embodiments, the clutch mechanism has a receiving groove on the side facing the interior of the chamber, a boss is provided at the bottom of the receiving groove, the drive head is located between the first end face and the second end face of the boss, and the spacing angle between the first end face and the second end face is greater than the second angle.

[0016] Compared with the prior art, in the door lock of the present application, the clutch mechanism only needs to rotate a second angle at most when operating the locking and unlocking of the closed tongue locking member and the inclined tongue locking member by rotating, which is less than 360° and can even be less than 180°. When the clutch mechanism is operated to rotate by turning the corresponding lock core or other non-key driven components with the key, compared with the traditional door lock that requires the key to be rotated two or three times when locking and opening the door, the rotation angle of the key or other non-key driven components when locking and opening the door is greatly reduced, making locking and opening the door more convenient. In addition, since the clutch mechanism can drive the closed tongue locking member to move from the closed tongue locked position to the closed tongue unlocked position and drive the inclined tongue locking member to move from the inclined tongue locked position to the inclined tongue unlocked position when rotating a second angle in a second direction opposite to the first direction, the unlocking of the closed tongue locking member and the inclined tongue locking member can be synchronously operated, thereby increasing the convenience of door opening. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A three-dimensional schematic diagram of the main components of the door lock of the present application;

[0019] Figure 2 It is a front view of the main components of the door lock of the present application, wherein the locking tongue locking member is in the locking tongue unlocking position;

[0020] Figure 3 Another front view of the main components of the door lock of the present application, wherein the tongue locking member is in the tongue locking position;

[0021] Figure 4 A rear view of the main components of the door lock of the present application, wherein the locking tongue locking member is in the locking tongue unlocking position;

[0022] Figure 5 Another rear view of the main components of the door lock of the present application, wherein the tongue locking member is in the tongue locking position;

[0023] Figure 6 A three-dimensional schematic diagram of a clutch mechanism in a door lock of the present application from one viewing angle;

[0024] Figure 7 A three-dimensional schematic diagram of the clutch mechanism in the door lock of the present application from another perspective;

[0025] Figure 8This is a three-dimensional exploded view of the door lock of the present application;

[0026] Fig. 9 This is a three-dimensional assembly diagram of the door lock of this application.

[0027] Description of Figure Numbers:

[0028] 1-door lock; 100-lock housing; 101-main housing; 102-covering plate; 200-oblique tongue locking member; 201-oblique tongue locking member body; 202-oblique tongue; 203-handle; 204-swing arm limiting groove; 300-closed tongue locking member; 301-closed tongue locking member body; 302-closed tongue; 303-first abutting surface; 304-second abutting surface; 305-limiting hook; 400-clutch mechanism; 500-closed tongue clutch member; 501-clutch sleeve; 502-drive Movable arm; 503-push post; 504-clamp head; 505-insertion hole; 506-accommodation groove; 507-boss; 508-first end face; 509-second end face; 600-oblique tongue clutch; 601-driving ring; 602-push head; 700-oblique tongue transmission member; 701-swing arm; 702-protrusion; 800-outdoor operating member; 801-jacket; 802-outdoor lock cylinder; 803-lock ruler; 900-indoor operating member; 901-indoor lock cylinder; 902-driving head. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present application, the present application will be described more comprehensively below with reference to the relevant drawings. One or more embodiments of the present application are exemplarily given in the drawings to make the understanding of the technical solution disclosed in the present application more accurate and thorough. However, it should be understood that the present application can be implemented in a variety of different forms and is not limited to the embodiments described below.

[0030] The same or similar numbers in the drawings of the present application correspond to the same or similar parts; in the description of the present application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings. This is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on the present application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B.

[0032] In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0033] See also Figure 1 , Figure 8 and Fig. 9 The present application provides a door lock 1, which includes a lock housing 100, a latch bolt locking member 200 movably disposed in the lock housing 100, a latch bolt locking member 300, and a clutch mechanism 400 rotatably disposed in the lock housing 100;

[0034] The oblique tongue locking member 200 can reciprocate between the oblique tongue locking position and the oblique tongue unlocking position, and the closed tongue locking member 300 can reciprocate between the closed tongue locking position and the closed tongue unlocking position. It can be understood that when the door lock 1 is installed on the door, when the oblique tongue locking member 200 is in the oblique tongue locking position and the closed tongue locking member 300 is in the closed tongue locking position, the door lock 1 can be locked with the lock groove component on the door frame to achieve door locking. When the oblique tongue locking member 200 is in the oblique tongue unlocking position and the closed tongue locking member 300 is in the closed tongue unlocking position, the door lock 1 is separated from the lock groove component on the door frame to achieve door opening.

[0035] When the clutch mechanism 400 rotates a first angle along a first direction, it can drive the closed tongue locking member 300 to move from the closed tongue unlocking position to the closed tongue locking position. When the clutch mechanism 400 rotates a second angle along a second direction opposite to the first direction, it can drive the closed tongue locking member 300 to move from the closed tongue locking position to the closed tongue unlocking position and drive the oblique tongue locking member 200 to move from the oblique tongue locking position to the oblique tongue unlocking position. The first angle is smaller than the second angle, and the second angle is smaller than 360°.

[0036] In the door lock 1 of the present application, the clutch mechanism 400 only needs to rotate a second angle, which is less than 360°, when operating the locking and unlocking of the closed tongue locking member 300 and the inclined tongue locking member 200 respectively by rotating. When the clutch mechanism 400 is operated to rotate by turning the corresponding lock core or other non-key driven components with the key, compared with the traditional door lock 1 which requires the key to be rotated two or three times when locking and opening the door, the rotation angle of the key or other non-key driven components when locking and opening the door is greatly reduced, making locking and opening the door more convenient. In addition, since the clutch mechanism 400 can drive the closed tongue locking member 300 to move from the closed tongue locked position to the closed tongue unlocked position and drive the inclined tongue locking member 200 to move from the inclined tongue locked position to the inclined tongue unlocked position when rotating the second angle in the second direction opposite to the first direction, the closed tongue locking member 300 and the inclined tongue locking member 200 can be synchronously unlocked, thereby increasing the convenience of door opening.

[0037] According to a preferred embodiment of the present application, the first angle and the second angle are both less than 180°, so as to further reduce the rotation angle of the key or other non-key driven components when the door lock 1 is used to lock and open the door.

[0038] In the present application, the first direction is a clockwise direction, and the second direction is a counterclockwise direction; or, the first direction is a counterclockwise direction, and the second direction is a clockwise direction.

[0039] See also Figure 1 According to an embodiment of the present application, the oblique bolt locking member 200 includes an oblique bolt locking member body 201 movably disposed in the lock housing 100 and an oblique tongue 202 connected to the oblique bolt locking member body 201. A handle 203 can be provided on the oblique bolt locking member body 201 to facilitate manual operation of the oblique bolt locking member 200 indoors. It can be understood that the oblique tongue 202 is in the shape of a wedge or an oblique block. In the oblique bolt locking position, the oblique tongue 202 extends out of the lock housing 100. In the oblique bolt unlocking position, the oblique tongue 202 extends out of the lock housing 100. In the locked position, the oblique tongue 202 retracts into the lock housing 100; the closed tongue locking member 300 includes a closed tongue locking member body 301 movably arranged in the lock housing 100 and a closed tongue 302 connected to the closed tongue locking member body 301, in the closed tongue locked position, the closed tongue 302 extends out of the lock housing 100, and in the closed tongue unlocked position, the closed tongue 302 retracts into the lock housing 100, wherein the oblique tongue locking member body 201 is preferably a rod-shaped body, and the closed tongue locking member body 301 is preferably a block-shaped body.

[0040] In this embodiment, the cross section of the closing tongue 302 is circular or rectangular, but is not limited to circular or rectangular.

[0041] See also Figure 1 , Figure 6 and Figure 7According to one embodiment of the present application, the clutch mechanism 400 includes a locking tongue clutch 500 rotatably disposed on the lock housing 100 and a tilted tongue clutch 600 disposed on the locking tongue clutch 500. The locking tongue clutch 500 is used to drive the locking tongue locking member 300 to reciprocate between the locking tongue locking position and the locking tongue unlocking position. The tilted tongue clutch 600 rotates with the locking tongue clutch 500 to drive the tilted tongue locking member 200 to move from the tilted tongue locking position to the tilted tongue unlocking position.

[0042] See also Figure 6 According to one embodiment of the present application, the oblique tongue clutch component 600 is detachably disposed on the closed tongue clutch component 500 .

[0043] As another embodiment, the oblique tongue clutch component 600 and the closed tongue clutch component 500 may also be an integrally formed component.

[0044] See also Figure 1 , Figure 6 and Figure 7 Specifically, the locking tongue clutch 500 includes a clutch sleeve 501 rotatably disposed on the lock housing 100 and a driving arm 502 disposed on the outer peripheral side of the clutch sleeve 501. The driving arm 502 rotates with the clutch sleeve 501 to drive the locking tongue locking member 300 to reciprocate between the locking tongue locking position and the locking tongue unlocking position. It can be understood that because the driving arm 502 rotates to drive the locking tongue locking member 300 to reciprocate between the locking tongue locking position and the locking tongue unlocking position, the initial inclination angle design of the driving arm 502 is an important factor in determining the first angle and the second angle. For example, by designing the initial inclination angle of the driving arm 502 so that the driving arm 502 is as close to the locking tongue locking member 300 as possible when the locking tongue unlocking position corresponds, it can be ensured that the first angle and the second angle are reduced, so that the first angle and the second angle are less than 180° or less.

[0045] See also Figures 1 to 5 According to one embodiment of the present application, a lever 503 is provided on one side of the driving arm 502, and the tongue locking member 300 includes a first abutting surface 303 and a second abutting surface 304 spaced apart from each other, and a recess is formed between the first abutting surface 303 and the second abutting surface 304. When the lever 503 is rotated by a first angle in a first direction, it can contact the first abutting surface 303 to push the tongue locking member 300 to move from the tongue unlocking position to the tongue locking position. When the lever 503 is rotated by a first angle in a second direction, it can contact the second abutting surface 304 to push the tongue locking member 300 to move from the tongue locking position to the tongue unlocking position.

[0046] As other embodiments, the driving arm 502 may not be provided with the lever 503, and the driving arm 502 may directly contact and drive the tongue locking member 300. In this case, there is no need to set the first abutting surface 303 and the second abutting surface 304 on the tongue locking member 300. The tongue locking member 300 may be provided with a lateral abutting column with reference to the positions of the first abutting surface 303 and the second abutting surface 304, so that the tongue locking member 300 can be pushed by the driving arm 502 contacting the lateral abutting column.

[0047] See also Figure 2 and Figure 3 Preferably, a limiting hook 305 is provided at the upper end of the first abutting surface 303 to prevent the lever 503 from detaching from the first abutting surface 303 when the lever 503 rotates along the first direction and contacts the first abutting surface 303 .

[0048] See also Figure 1 According to an embodiment of the present application, the clutch mechanism 400 includes a latch bolt transmission member 700. When the clutch mechanism 400 rotates along the second direction by a second angle, it can drive the latch bolt transmission member 700 to drive the latch bolt locking member 200 to move from the latch bolt locking position to the latch bolt unlocking position. Specifically, the latch bolt clutch member 600 that rotates with the closed tongue clutch member 500 can drive the latch bolt transmission member 700. Due to the design of the latch bolt transmission member 700, the division of labor of the various functional components of the door lock 1 of the present application is clearer, and it is also convenient to independently maintain these various functional components.

[0049] Still see Figure 1 Specifically, the oblique tongue transmission member 700 is hinged on the closed tongue locking member 300, but can also be movably connected to the closed tongue locking member 300 through other connection methods. In addition, the oblique tongue transmission member 700 is not limited to being connected to the closed tongue locking member 300. Through reasonable design, on the premise of ensuring that the clutch mechanism 400 can drive the oblique tongue transmission member 700 to drive the oblique tongue locking member 200 to move from the oblique tongue locking position to the oblique tongue unlocking position, the oblique tongue transmission member 700 can also be connected to the oblique tongue locking member 200 or the lock housing 100.

[0050] See also Figure 1 and Figure 6 According to one embodiment of the present application, the inclined tongue clutch member 600 includes a drive ring 601 detachably arranged on the outer peripheral side of the clutch sleeve 501 and a dial head 602 arranged on the outer peripheral side of the drive ring 601, and the dial head 602 is used to drive the inclined tongue transmission member 700 to drive the inclined tongue locking member 200 to move from the inclined tongue locking position to the inclined tongue unlocking position.

[0051] See also Figure 6According to a preferred embodiment of the present application, a clamping head 504 is provided on the clutch sleeve 501. Specifically, two clamping heads 504 that are symmetrically arranged and deviate from each other can be provided. A clamping groove that engages with the clamping head 504 is provided on the inner ring side of the driving ring 601. Through the engagement of the driving ring 601 and the clamping head 504, the driving ring 601 can be detachably connected to the outer peripheral side of the clutch sleeve 501, which is also convenient for disassembly.

[0052] In other embodiments, the drive ring 601 may also be detachably connected to the clutch sleeve 501 by plug-in, snap-on, threaded fastener connection, etc.

[0053] Still see Figure 1 According to one embodiment of the present application, the oblique tongue transmission member 700 includes a swing arm 701 hinged to the closed tongue locking member 300, and a swing arm limiting groove 204 is provided on the oblique tongue locking member 200, and the swing arm limiting groove 204 is specifically provided on the oblique tongue locking member body 201, and the first end of the swing arm 701 extends into the swing arm limiting groove 204, and the second end of the swing arm 701 is provided with a protrusion 702, and the dial head 602 is used to contact and push the protrusion 702 to rotate the swing arm 701.

[0054] See also Figure 8 and Fig. 9 In addition, the door lock 1 includes an outdoor operating member 800 arranged on the lock shell 100, and the outdoor operating member 800 includes a cover 801, an outdoor lock core 802 and a lock ruler 803 connected to the outdoor lock core 802. The outdoor lock core 802 can be installed in the cover 801, and the lock ruler 803 cooperates with the side of the clutch mechanism 400 facing the outdoors to drive the clutch mechanism 400 to rotate along the first direction and the second direction. Specifically, the key can be inserted into the outdoor lock core 802 and the outdoor lock core 802 can be turned along the first direction and the second direction.

[0055] See also Figures 1 to 3 According to an embodiment of the present application, the clutch mechanism 400 has a socket 505 on the side facing outdoors, and the lock ruler 803 is inserted into the socket 505. Specifically, the socket 505 is arranged on the side of the clutch sleeve 501 facing outdoors, so the lock ruler 803 specifically cooperates with the side of the clutch sleeve 501 facing outdoors.

[0056] In other embodiments, an insert piece may be provided on the side of the clutch mechanism 400 facing the outdoors, and a slot matching the insert piece may be provided on the locking ruler 803 .

[0057] See also Figure 8In addition, the door lock 1 includes an indoor operating member 900 arranged on the lock shell 100, and the indoor operating member 900 includes an indoor lock cylinder 901 and a drive head 902 connected to the indoor lock cylinder 901 and extending toward the clutch mechanism 400. The drive head 902 cooperates with the side of the clutch mechanism 400 facing the room to drive the clutch mechanism 400 to rotate along the first direction and the second direction. Specifically, the indoor lock cylinder 901 can be inserted with a key and the indoor lock cylinder 901 can be twisted along the first direction and the second direction.

[0058] See also Figure 4 , Figure 5 and Figure 7 According to an embodiment of the present application, the clutch mechanism 400 has a receiving groove 506 on the side facing the indoor room, and a boss 507 is provided at the bottom of the receiving groove 506. The boss 507 is preferably arc-shaped, and the drive head 902 is located between the first end face 508 and the second end face 509 of the boss 507. Specifically, the receiving groove 506 is provided on the side of the clutch sleeve 501 facing the indoor room, so the drive head 902 specifically cooperates with the side of the clutch sleeve 501 facing the indoor room. When the indoor lock cylinder 901 rotates along the first direction and the second direction When the drive head 902 contacts the first end face 508 or the second end face 509 of the boss 507, it can further rotate to push the clutch sleeve 501 to rotate, wherein the interval angle between the first end face 508 and the second end face 509 is greater than the second angle, so the outdoor lock cylinder 802 is twisted along the first direction and the second direction to drive the clutch sleeve 501 to rotate the second angle in time, and it can also ensure that the drive head 902 does not contact the two end faces of the boss 507, so that the rotation actions of the clutch sleeve 501 operated outdoors and indoors do not interfere with each other.

[0059] See also Figure 8 and Fig. 9 According to one embodiment of the present application, the lock housing 100 includes a main housing 101 and a cover plate 102 connected to each other. The main housing 101 and the cover plate 102 form a receiving cavity for receiving components such as a slanted tongue locking member 200, a closed tongue locking member 300, a clutch mechanism 400 and a slanted tongue transmission member 700. The indoor operating member 900 can be installed on the main housing 101, and the outdoor operating member 800 can be installed on the cover plate 102.

[0060] Combine the following Figures 2 to 6 , explaining the detailed working principle of the door lock 1 of the present application, wherein the so-called "counterclockwise direction" and "clockwise direction" are based on the perspectives in the corresponding drawings:

[0061] See also Figure 2 and Figure 3, the outdoor driven locking tongue lock 300 is locked. When the locking tongue lock 300 is in the locking tongue unlocking position, the key is inserted into the outdoor lock cylinder 802 and the outdoor lock cylinder 802 is turned in the clockwise direction. Then the lock ruler 803 drives the clutch sleeve 501 to rotate synchronously in the first direction in the clockwise direction. The driving arm 502 drives the lever 503 to gradually move close to the first abutting surface 303. After contacting the first abutting surface 303, the locking tongue lock 300 is pushed so that the locking tongue lock 300 moves from the locking tongue unlocking position to the locking tongue locking position. The locking tongue 302 extends out of the lock shell 100 and is inserted into the corresponding lock slot component on the door frame, thereby completing the locking of the locking tongue lock 300. It can be understood that when realizing the keyless operation of the locking tongue lock 300, the outdoor operating component 800 can be used as the non-key driving component mentioned in this application, but the non-key driving component mentioned in this application is not limited to the outdoor operating component 800.

[0062] See also Figure 2 and Figure 3 , the outdoor drive lock tongue lock member 300 is unlocked and the oblique tongue lock member 200 is unlocked. When the lock tongue lock member 300 is in the lock tongue locking position and the oblique tongue lock member 200 is in the oblique tongue locking position, the key is inserted into the outdoor lock cylinder 802 and the outdoor lock cylinder 802 is turned counterclockwise, and then the lock ruler 803 drives the clutch sleeve 501 to rotate synchronously in the counterclockwise direction, and the driving arm 502 drives the lever 503 to move from the original position against the first abutment surface 303 to gradually approach the second abutment surface 304. After the lever 503 contacts the second abutment surface 304, it pushes the lock tongue lock member 300 so that the lock tongue lock member 300 moves from the lock tongue locking position to the lock tongue unlocking position. The locking tongue 302 is separated from the corresponding lock groove component on the door frame and retracted into the lock shell 100, thereby completing the unlocking of the locking tongue locking member 300, and the lock ruler 803 drives the clutch sleeve 501 to continue to rotate in the counterclockwise direction synchronously until the driving ring 601 rotates to make the dial head 602 toggle the protrusion 702 at the second end of the swing arm 701, and after the swing arm 701 rotates, its first end moves in the swing arm limiting groove 204 until it pushes the oblique tongue locking member 200 to move to the oblique tongue unlocking position, and finally the oblique tongue locking member 200 moves to the oblique tongue unlocking position, and the oblique tongue 202 is separated from the corresponding lock groove component on the door frame and retracted into the lock shell 100, thereby completing the unlocking of the oblique tongue locking member 200.

[0063] See also Figure 4 and Figure 5, the indoor driven locking tongue lock 300 is locked. When the locking tongue lock 300 is in the locking tongue unlocking position, the key is inserted into the indoor lock cylinder 901 and the indoor lock cylinder 901 is turned counterclockwise, and then the driving head 902 contacts the first end surface 508 of the boss 507 and pushes the clutch sleeve 501 to rotate counterclockwise, and then, similar to the outdoor driven locking tongue lock 300, the driving arm 502 drives the dial column 503 to push the locking tongue lock 300 so that the locking tongue lock 300 moves from the locking tongue unlocking position to the locking tongue locking position, and the locking tongue 302 extends out of the lock shell 100 and is inserted into the corresponding lock slot component on the door frame, thereby completing the locking of the locking tongue lock 300.

[0064] See also Figure 4 and Figure 5 , the indoor driven locking tongue lock 300 is unlocked. When the locking tongue lock 300 is in the locking tongue locked position, the key is inserted into the indoor lock cylinder 901 and the indoor lock cylinder 901 is turned clockwise, and then the driving head 902 contacts the second end surface 509 of the boss 507 and pushes the clutch sleeve 501 to rotate clockwise, and then, similar to the outdoor driven locking tongue lock 300, the driving arm 502 drives the dial column 503 to push the locking tongue lock 300 so that the locking tongue lock 300 moves from the locking tongue locked position to the locking tongue unlocked position, and the locking tongue 302 is separated from the corresponding lock groove component on the door frame and retracted into the lock shell 100, thereby completing the unlocking of the locking tongue lock 300, and further clockwise rotation of the indoor lock cylinder 901 can also further unlock the oblique tongue lock 200.

[0065] In addition, it should be noted that, generally speaking, there is no need to use a key to unlock the latch bolt locking member 200 indoors. Instead, the handle 203 provided on the latch bolt locking member 200 is manually operated to pull the latch bolt locking member 200 to move toward the latch bolt unlocking position. Without the intervention of external force, the latch bolt locking member 200 keeps the latch bolt 202 extended under the action of a spring (not shown).

[0066] The above description is only a preferred specific implementation manner of the present invention, and the protection scope of the present invention is not limited to the embodiments listed above. Any simple change or equivalent replacement of the technical solution that can be obviously obtained by any technician familiar with the technical field within the technical scope disclosed in the present invention falls within the protection scope of the present invention.

Claims

1. A door lock, comprising a lock housing, a latch bolt locking member and a latch bolt locking member movably arranged in the lock housing, characterized in that: The door lock comprises a clutch mechanism rotatably arranged on the lock housing; The oblique tongue locking member can reciprocate between an oblique tongue locking position and an oblique tongue unlocking position, and the closed tongue locking member can reciprocate between a closed tongue locking position and a closed tongue unlocking position; When the clutch mechanism rotates a first angle along a first direction, it can drive the closed tongue locking member to move from the closed tongue unlocking position to the closed tongue locking position. When the clutch mechanism rotates a second angle along a second direction opposite to the first direction, it can drive the closed tongue locking member to move from the closed tongue locking position to the closed tongue unlocking position and drive the oblique tongue locking member to move from the oblique tongue locking position to the oblique tongue unlocking position. The first angle is smaller than the second angle, and the second angle is smaller than 360°.

2. The door lock according to claim 1, characterized in that: The first angle and the second angle are both smaller than 180°.

3. The door lock according to claim 1, characterized in that: The clutch mechanism comprises an oblique tongue transmission member, and when the clutch mechanism rotates by a second angle along the second direction, it can drive the oblique tongue transmission member to drive the oblique tongue locking member to move from the oblique tongue locking position to the oblique tongue unlocking position.

4. The door lock according to claim 3, characterized in that: The clutch mechanism includes a locking tongue clutch rotatably arranged on the lock housing and a tilted tongue clutch arranged on the locking tongue clutch, the locking tongue clutch is used to drive the locking tongue locking member to reciprocate between a locking tongue locking position and a locking tongue unlocking position, and the tilted tongue clutch rotates with the locking tongue clutch to drive the tilted tongue locking member to move from the tilted tongue locking position to the tilted tongue unlocking position.

5. The door lock according to claim 4, characterized in that: The oblique tongue clutch component is detachably arranged on the closed tongue clutch component.

6. The door lock according to claim 4, characterized in that: The locking tongue clutch member includes a clutch sleeve rotatably arranged on the lock housing and a driving arm arranged on the outer peripheral side of the clutch sleeve, and the driving arm rotates with the clutch sleeve to drive the locking tongue locking member to reciprocate between a locking tongue locking position and a locking tongue unlocking position.

7. The door lock according to claim 6, characterized in that: The oblique tongue clutch comprises a drive ring detachably arranged on the outer peripheral side of the clutch sleeve and a dial head arranged on the outer peripheral side of the drive ring, wherein the dial head is used to drive the oblique tongue transmission member to drive the oblique tongue locking member to move from the oblique tongue locking position to the oblique tongue unlocking position.

8. The door lock according to claim 7, characterized in that: The oblique tongue transmission member includes a swing arm hinged to the closed tongue locking member, a swing arm limiting groove is provided on the oblique tongue locking member, the first end of the swing arm extends into the swing arm limiting groove, the second end of the swing arm is provided with a protrusion, and the dial head is used to contact and push the protrusion to rotate the swing arm.

9. The door lock according to any one of claims 1 to 8, characterized in that: The door lock includes an indoor operating member arranged on the lock housing, and the indoor operating member includes an indoor lock core and a driving head connected to the indoor lock core and extending toward the clutch mechanism, and the driving head cooperates with the side of the clutch mechanism facing the room to drive the clutch mechanism to rotate along the first direction and the second direction.

10. The door lock according to claim 9, characterized in that: The clutch mechanism has a receiving groove on one side facing the interior of the chamber, a boss is provided at the bottom of the receiving groove, the drive head is located between a first end face and a second end face of the boss, and the spacing angle between the first end face and the second end face is greater than the second angle.

Images