Lock and anti-theft door

Abstract

The utility model discloses a lock and an anti-theft door, and belongs to the technical field of security and protection equipment. The lock comprises a lock body, a latch bolt assembly, a latch bolt extension driving piece and a latch bolt retraction driving piece. The latch bolt assembly is arranged on the lock body in a telescopic mode. The latch bolt extending driving piece is arranged on the lock body, is connected with the latch bolt assembly and is used for driving the latch bolt assembly to extend out of the lock body; the latch bolt retraction driving piece is arranged on the lock body and used for driving the latch bolt assembly to retract into the lock body. The latch bolt retraction driving piece is provided with a first shifting part, the latch bolt assembly is provided with a first abutting part, the first shifting part is located on the side, close to the lock catch plate, of the first abutting part, and the first shifting part can abut against the first abutting part. According to the scheme, the latch bolt retraction driving piece drives the latch bolt assembly to retract so that the latch bolt assembly can stably and slowly move; when the latch bolt assembly extends out, the first shifting part can tension the latch bolt assembly, so that the latch bolt assembly slowly extends out, and noise generated in the moving process of the latch bolt assembly is effectively reduced.

Description

Technical Field

[0001] The present application belongs to the technical field of security equipment, and specifically relates to a lock and an anti-theft door. Background Art

[0002] Locks are widely used in daily life. Locks are generally set on door bodies. Existing locks usually include a lock body with an accommodating cavity and a lock tongue retractably arranged in the accommodating cavity. The lock tongue extends from the tongue hole on the lock body into the tongue hole of the door frame or retracts from the tongue hole of the door frame to lock and unlock the door.

[0003] However, when opening the door, the inclined tongue of the existing lock generates noise when retracting into and extending from the lock body, which affects the user's rest and results in a poor user experience of the lock.

[0004] Therefore, the existing lock has the problem of generating noise during the process of extending and retracting the latch bolt. Utility Model Content

[0005] The purpose of the embodiments of the present application is to provide a lock and an anti-theft door, which can solve the problem of noise generated during the extension and retraction of the inclined tongue of the existing lock in the related art.

[0006] In a first aspect, an embodiment of the present application provides a lock, comprising:

[0007] Lock body;

[0008] A latch bolt assembly is telescopically disposed on the lock body;

[0009] A latch bolt extension driving member is disposed on the lock body, the latch bolt extension driving member is connected to the latch bolt assembly, and the latch bolt extension driving member is used to drive the latch bolt assembly to extend out of the lock body;

[0010] A latch bolt retracting driving member is disposed on the lock body, and is used to drive the latch bolt assembly to retract into the lock body;

[0011] Wherein, the oblique tongue retracting driving member is provided with a first toggle portion, and the oblique tongue assembly is provided with a first abutting portion, the first toggle portion is located on a side of the first abutting portion close to the locking plate, and the first toggle portion can abut against the first abutting portion.

[0012] In a second aspect, the embodiment of the present application further provides an anti-theft door, comprising:

[0013] A door frame, wherein a locking plate is provided on a first side edge of the door frame;

[0014] A door body is located in the door frame, a first side edge of the door body can be opposite to the lock plate, and a second side edge of the door body is rotatably connected to a second side edge of the door frame;

[0015] The above-mentioned lock is installed at the first side of the door body, and is used to lock the door body and the lock plate.

[0016] In an embodiment of the present application, the lock includes a lock body, a tilted bolt assembly, a tilted bolt extension driving member and a tilted bolt retracting driving member. The tilted bolt assembly is telescopically arranged on the lock body, the tilted bolt extension driving member and the tilted bolt retracting driving member are both arranged on the lock body, the tilted bolt extension driving member is connected to the tilted bolt assembly, and the tilted bolt extension driving member is used to drive the tilted bolt assembly to extend out of the lock body; the tilted bolt retracting driving member is used to drive the tilted bolt assembly to retract into the lock body, so that the tilted bolt assembly can be driven to retract by the tilted bolt retracting driving member, so that the tilted bolt assembly can be moved stably and reliably, and the tilted bolt retracting driving member can drive the tilted bolt assembly to move slowly, which can effectively reduce the noise generated by the tilted bolt assembly during the movement.

[0017] In addition, the latch bolt retraction driving member is provided with a first toggle portion, and the latch bolt assembly is provided with a first abutting portion, the first toggle portion is located on a side of the first abutting portion close to the lock plate, and the first toggle portion can abut against the first abutting portion. In this way, when the latch bolt extension driving member drives the latch bolt assembly to extend out of the lock body, the first abutting portion can abut against the first toggle portion, and at this time, the first toggle portion can play a certain tightening role on the latch bolt assembly, so that the latch bolt assembly can be slowly extended, thereby effectively reducing the noise generated by the latch bolt assembly during movement; and because the first toggle portion is provided on the latch bolt retraction driving member, the movement stroke of the first toggle portion is determined by the latch bolt retraction driving member, and the movement stroke of the latch bolt assembly can be limited by adjusting the stroke of the latch bolt retraction driving member, which can effectively avoid the latch bolt assembly from having a large collision with the lock body or the lock plate to generate noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is one of the position relationship diagrams of the lock and the lock plate disclosed in the embodiment of the present application;

[0019] Figure 2 This is the second position relationship diagram of the lock and the lock plate disclosed in the embodiment of the present application;

[0020] Figure 3 This is one of the front views of the lock disclosed in the embodiment of the present application (hiding the inclined tongue assembly and the detection tongue assembly);

[0021] Figure 4 It is one of the three-dimensional views of the lock disclosed in the embodiment of the present application (hiding the square tongue assembly);

[0022] Figure 5 This is the second front view of the lock disclosed in the embodiment of the present application (the inclined tongue assembly and the detection tongue assembly are both in the extended state);

[0023] Figure 6This is the third front view of the lock disclosed in the embodiment of the present application (the inclined tongue assembly and the detection tongue assembly are both in the extended state);

[0024] Figure 7 This is the fourth front view of the lock disclosed in the embodiment of the present application (the inclined tongue assembly and the detection tongue assembly are both in the process of retraction);

[0025] Figure 8 is an exploded view of the lock disclosed in the embodiment of the present application;

[0026] Fig. 9 This is the fifth front view of the lock disclosed in the embodiment of the present application (the inclined tongue assembly and the detection tongue assembly are both retracted in the lock body);

[0027] Fig.10 This is the sixth front view of the lock disclosed in the embodiment of the present application (the square tongue assembly is in the process of retracting);

[0028] Fig.11 It is one of the three-dimensional views of the latch bolt assembly disclosed in the embodiment of the present application;

[0029] Fig.12 This is the second stereoscopic view of the oblique tongue assembly disclosed in the embodiment of the present application;

[0030] Fig.13 is an exploded view of the latch bolt assembly disclosed in the embodiment of the present application;

[0031] Fig.14 is a three-dimensional diagram of a square tongue assembly disclosed in an embodiment of the present application;

[0032] Fig.15 is a stereogram of a detection tongue assembly disclosed in an embodiment of the present application;

[0033] Fig.16 is an exploded view of the detection tongue assembly disclosed in the embodiment of the present application;

[0034] Fig.17 It is one of the three-dimensional diagrams of the anti-theft door disclosed in the embodiment of the present application;

[0035] Fig.18 This is the second stereoscopic diagram of the anti-theft door disclosed in the embodiment of the present application;

[0036] Fig.19 is a connection relationship diagram of a latch bolt assembly and a latch bolt retracting driving member disclosed in an embodiment of the present application;

[0037] Fig. 20 It is a stereoscopic view of the latch tongue retraction drive member disclosed in the embodiment of the present application.

[0038] Description of reference numerals:

[0039] 100-lock; 200-lock body; 210-lock bottom plate; 220-first flange;

[0040] 230 - second flange; 240 - first buffer; 250 - second buffer; 260 - first convex portion;

[0041] 270-second protrusion; 280-limiting plate; 300-oblique tongue assembly; 310-oblique tongue; 311-missing groove;

[0042] 320 - oblique tongue connecting plate; 330 - first abutting portion; 340 - second shifting portion;

[0043] 350-first anti-collision wear-resistant part; 360-connecting shaft; 400-square tongue assembly; 410-square tongue;

[0044] 420-square tongue plate; 500-detection tongue assembly; 510-detection tongue; 520-detection tongue guide plate;

[0045] 530-connecting plate; 531-strip hole; 540-second anti-collision wear-resistant part; 550-connecting part;

[0046] 511-first tongue body; 512-second tongue body; 600-oblique tongue retraction driving member; 610-driving motor;

[0047] 620-transmission wheel; 630-dial plate; 631-first arc-shaped rack; 632-first dial portion;

[0048] 700- oblique tongue extension driving member; 800- detection tongue extension driving member; 900- second transmission assembly;

[0049] 910-first transmission arm; 920-second transmission arm; 911-second arc-shaped rack; 912-first arc-shaped sliding hole;

[0050] 921 - third arc-shaped rack; 922 - second arc-shaped sliding hole; 923 - connecting protrusion; 930 - second abutting portion;

[0051] 940-first rotating shaft; 950-second rotating shaft; 1000-door frame; 1010-locking plate;

[0052] 1020-first mute plate; 1030-second mute plate; 1011-oblique tongue hole; 1012-square tongue lock hole;

[0053] 1013-detect tongue collision position; 1100-door body. DETAILED DESCRIPTION

[0054] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0055] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0056] The lock and anti-theft door provided in the embodiments of the present application are described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0057] refer to Figure 1-Figure 20 A lock 100 provided in an embodiment of the present application may include a lock body 200, a latch bolt assembly 300, a latch bolt extension driving member 700, and a latch bolt retraction driving member 600.

[0058] Among them, the inclined bolt assembly 300 can be telescopically arranged on the lock body 200, the inclined bolt extension driving member 700 can be arranged on the lock body 200, the inclined bolt extension driving member 700 can be connected to the inclined bolt assembly 300, and the inclined bolt extension driving member 700 can be used to drive the inclined bolt assembly 300 to extend out of the lock body 200. Specifically, after opening the door or after closing the door, the inclined bolt extension driving member 700 can drive the inclined bolt assembly 300 to extend out of the lock body 200.

[0059] The latch bolt retraction driving member 600 may be disposed on the lock body 200, and the latch bolt retraction driving member 600 may be used to drive the latch bolt assembly 300 to retract into the lock body 200. Specifically, when unlocking and opening the door, the latch bolt retraction driving member 600 may drive the latch bolt assembly 300 to retract into the lock body 200. Here, by driving the latch bolt assembly 300 to retract through the latch bolt retraction driving member 600, the latch bolt assembly 300 may be moved stably and reliably, and the latch bolt retraction driving member 600 may drive the latch bolt assembly 300 to move slowly, thereby effectively reducing the noise generated by the latch bolt assembly 300 during the movement process.

[0060] In addition, the latch bolt retraction drive member 600 may be provided with a first toggle portion 632, and the latch bolt assembly 300 may be provided with a first abutment portion 330. The first toggle portion 632 may be located on a side of the first abutment portion 330 close to the locking plate 1010, and the first toggle portion 632 may abut against the first abutment portion 330. In this way, the latch bolt extension driving member 700 drives the latch bolt assembly 300 to extend out of the lock body 200, and the first abutting portion 330 can abut against the first toggle portion 632. At this time, the first toggle portion 632 can play a certain tightening role on the latch bolt assembly 300. As the latch bolt retracting driving member 600 is slowly released, the latch bolt assembly 300 can be slowly extended, thereby effectively reducing the noise generated by the movement of the latch bolt assembly 300 after the door is opened; and because the first toggle portion 632 is provided on the latch bolt retracting driving member 600, the moving stroke of the first toggle portion 632 is determined by the latch bolt retracting driving member 600. The moving stroke of the first toggle portion 632 can be adjusted by adjusting the stroke of the latch bolt retracting driving member 600, thereby limiting the moving stroke of the latch bolt assembly 300, and effectively preventing the latch bolt assembly 300 from having a large collision with the lock body 200 or the lock plate 1010 to generate noise.

[0061] Furthermore, when the door is closed, the latch bolt assembly 300 can be retracted into the lock body 200 by the squeezing effect of the door frame 1000, without the need for the latch bolt retraction drive 600 to drive, which is conducive to simplifying the operation procedure of the lock 100; after the door is closed, the latch bolt assembly 300 is extended into the latch bolt hole 1011 of the lock plate 1010. Since the latch bolt hole 1011 is equivalent to a relatively closed space after the door is closed, the noise generated during the process of the latch bolt assembly 300 extending into the latch bolt hole 1011 is reduced by the closed space of the latch bolt hole 1011. Therefore, there is no need to consider the problem of reducing noise in this process, that is, the latch bolt retraction drive 600 does not need to have the function of driving the latch bolt to extend.

[0062] It should be noted that, since the inclined tongue assembly 300 is linked with the detection tongue assembly 500 described later, if the inclined tongue retraction driving member 600 is set to a structure that can drive the inclined tongue assembly 300 to retract and drive the inclined tongue assembly 300 to extend, then after the door is opened, the structure must be controlled to drive the inclined tongue assembly 300 to extend in order to extend the detection tongue assembly 500, and before closing the door, the inclined tongue retraction driving member 600 must first drive the inclined tongue assembly 300 to retract into the lock body 200 to complete the door closing action, and in this way, the detection tongue assembly 500 will retract together with the inclined tongue assembly 300 instead of being retracted by the squeezing action of the lock plate 1010 after the door is closed, which will cause the detection tongue assembly 500 to be unable to detect whether the door body 1100 is in a closed state, and thus it is impossible to determine when to control the square tongue assembly 400 to extend.

[0063] In an optional embodiment, the inclined tongue extension driving member 700 can be an elastic member. When the inclined tongue assembly 300 is contracted by force, the elastic member is deformed. When the force on the inclined tongue assembly 300 disappears, the elastic member recovers the deformation and drives the inclined tongue assembly 300 to extend.

[0064] Specifically, the latch bolt extension driving member 700 may be a torsion spring, one torsion arm of the torsion spring is connected to the lock body 200 , and the other torsion arm is connected to the latch bolt assembly 300 .

[0065] In an optional embodiment of the present application, Figure 1 , Fig.19 and Fig. 20 As shown, the latch bolt retracting driving member 600 may include a driving motor 610 and a first transmission assembly, the first transmission assembly may include a transmission wheel 620 and a dial 630, the dial 630 may be rotatably connected to the lock body 200, the transmission wheel 620 may be transmission-connected to the driving motor 610, and the dial 630 may be provided with a first arc-shaped rack 631, which may mesh with the transmission wheel 620 to achieve transmission connection between the dial 630 and the transmission wheel 620. Here, the first toggle portion 632 may be provided on the toggle disk 630. By driving the transmission wheel 620 to rotate through the driving motor 610, the toggle disk 630 may be driven to rotate, thereby driving the first toggle portion 632 to move, so that the first toggle portion 632 pulls the latch bolt assembly 300 to retract into the lock body 200.

[0066] Compared with the method of using a linear drive, the method of using a drive motor 610 and a first transmission assembly to realize the movement of the first toggle part 632 is conducive to fully utilizing the space of the lock body 200 and can reduce the space occupied by the inclined tongue retraction drive member 600 in the width direction of the lock body 200. In addition, the drive motor 610 here can be a motor possessed by the lock 100 itself, and there is no need to set up an additional drive device.

[0067] In other embodiments, the latch tongue retraction drive 600 may be a linear drive, and the first toggle portion 632 may be disposed on the telescopic end of the linear drive. Specifically, the linear drive may be an electric cylinder or a pneumatic cylinder, and the first toggle portion 632 may be disposed on the piston rod of the electric cylinder or the pneumatic cylinder.

[0068] In an optional embodiment of the present application, the lock 100 may also include a detection tongue assembly 500 and a second transmission assembly 900. The detection tongue assembly 500 may be telescopically arranged on the lock body 200. The second transmission assembly 900 may be connected to the detection tongue assembly 500. A second abutment portion 930 may be arranged on the second transmission assembly 900. A second toggle portion 340 may be arranged on the oblique tongue assembly 300. The second abutment portion 930 may be located on a side of the second toggle portion 340 away from the lock plate 1010, and the second abutment portion 930 may abut against the second toggle portion 340. In this way, when the detection tongue assembly 500 is extended, since the second shifting portion 340 is located on the side of the second abutting portion 930 close to the locking plate 1010, the detection tongue assembly 500 can be slowly extended due to the blocking effect of the second shifting portion 340, thereby reducing the noise generated during the extension of the detection tongue assembly 500, and when the inclined tongue assembly 300 is in the extended state, no matter how the detection tongue assembly 500 is extended or retracted, it will not affect the inclined tongue assembly 300.

[0069] In other embodiments, the lock 100 may not include the second transmission assembly 900 , and the extension and retraction of the detection tongue assembly 500 is not affected by the inclined tongue assembly 300 .

[0070] In an optional embodiment, if Figure 4 and Figure 5 As shown, the second transmission assembly 900 may include a first transmission arm 910 and a second transmission arm 920, and the first transmission arm 910 and the second transmission arm 920 may be rotatably disposed on the lock body 200, and the second abutment portion 930 may be disposed on the first edge of the first transmission arm 910, a second arc-shaped rack 911 may be disposed at the second edge of the first transmission arm 910, a third arc-shaped rack 921 may be disposed at the first edge of the second transmission arm 920, the third arc-shaped rack 921 may be engaged with the second arc-shaped rack 911, and the second edge of the second transmission arm 920 may be connected to the detection tongue assembly 500.

[0071] The movement of the inclined tongue assembly 300 drives the movement of the detection tongue assembly 500 by the rotational cooperation of the first transmission arm 910 and the second transmission arm 920, thereby realizing the linkage between the inclined tongue assembly 300 and the detection tongue assembly 500. Compared with the method in which the inclined tongue assembly 300 drives the movement of the detection tongue assembly 500 only by pushing the transmission rod to move, the transmission is stable and the force is uniform.

[0072] Furthermore, the first transmission arm 910 and the second transmission arm 920 may both be plate-shaped structures, which are less likely to be deformed by force than the transmission rod.

[0073] In other embodiments, the second transmission assembly 900 may be a transmission rod, a first end of the transmission rod may be provided with a second abutment portion 930 , and a second end of the transmission rod may be connected to the detection tongue assembly 500 .

[0074] Optionally, the first transmission arm 910 may be rotatably connected to the lock body 200 via a first rotating shaft 940, and a first convex portion 260 is provided on one of the first transmission arm 910 and the lock body 200, and a first arc-shaped sliding hole 912 is provided on the other, the center of the first arc-shaped sliding hole 912 is located on the axis of the first rotating shaft 940, and the first convex portion 260 is located in the first arc-shaped sliding hole 912 and slidably cooperates with the first arc-shaped sliding hole 912. The rotation path of the first transmission arm 910 can be limited by the way that the first convex portion 260 cooperates with the first arc-shaped sliding hole 912.

[0075] The second transmission arm 920 can be rotatably connected to the lock body 200 through the second rotating shaft 950, and a second convex portion 270 is provided on one of the second transmission arm 920 and the lock body 200, and a second arc-shaped sliding hole 922 is provided on the other, the center of the second arc-shaped sliding hole 922 is located on the axis of the second rotating shaft 950, and the second convex portion 270 is located in the second arc-shaped sliding hole 922 and slidably cooperates with the second arc-shaped sliding hole 922. The rotation path of the second transmission arm 920 can be limited by the way that the second convex portion 270 cooperates with the second arc-shaped sliding hole 922.

[0076] Further optionally, a strip hole 531 extending in the vertical direction may be provided on one of the second edge of the second transmission arm 920 and the detection tongue assembly 500, and a connecting protrusion 923 may be provided on the other, and the connecting protrusion 923 may be located in the strip hole 531 and slidably cooperate with the strip hole 531. In this way, the connection between the detection tongue assembly 500 and the second transmission arm 920 can be achieved, and the detection tongue assembly 500 can be prevented from hindering the rotation of the second transmission arm 920 and making the detection tongue assembly 500 unable to move.

[0077] Here, the detection tongue assembly 500 is provided with a connecting plate 530 , and the strip-shaped holes 531 are provided on the connecting plate 530 .

[0078] In an optional embodiment, the lock 100 may further include a detection tongue extension driving member 800, which may be disposed on the lock body 200. The detection tongue extension driving member 800 is used to drive the detection tongue assembly 500 to extend out of the lock body 200, so that the detection tongue assembly 500 can be extended and retracted independently of the oblique tongue assembly 300.

[0079] In addition, the detection tongue extension driving member 800 can be connected to the second transmission arm 920 , and the detection tongue extension driving member 800 drives the detection tongue assembly 500 to extend out of the lock body 200 by driving the second transmission arm 920 to rotate.

[0080] In other embodiments, the detection tongue assembly 500 may be connected to the inclined tongue assembly 300 , and the detection tongue assembly 500 may be extended and retracted synchronously with the inclined tongue assembly 300 .

[0081] Optionally, the detection tongue extension driving member 800 may be an elastic member, and when the detection tongue assembly 500 is contracted by force, the elastic member is deformed, and when the force on the detection tongue assembly 500 disappears, the elastic member recovers the deformation and drives the detection tongue assembly 500 to extend out of the lock body 200. Here, the detection tongue extension driving member 800 may be a torsion spring or a spring.

[0082] In an optional embodiment of the present application, Figure 11-13 As shown, the oblique tongue assembly 300 may include an oblique tongue 310 and a first anti-collision wear-resistant member 350. The oblique tongue 310 may be provided with a notch 311. The first portion of the first anti-collision wear-resistant member 350 may be provided in the notch 311, and the second portion of the first anti-collision wear-resistant member 350 may protrude from the inclined surface of the oblique tongue 310 in a direction away from the lock body 200. In this way, when the door is opened or closed, the first anti-collision wear-resistant member 350 may collide with the strike plate 1010, which can prevent the oblique tongue 310 from colliding with the strike plate 1010, thereby reducing or eliminating collision noise and preventing the oblique tongue 310 from being worn.

[0083] Here, the first abutting portion 330 may be disposed on the inclined tongue 310 .

[0084] Optionally, the first anti-collision wear-resistant member 350 can be made of plastic, which can reduce costs and reduce noise caused by collision.

[0085] Of course, in other embodiments, the latch tongue assembly 300 may only include the latch tongue 310 .

[0086] In this embodiment, the inclined tongue assembly 300 may further include an inclined tongue connecting plate 320, which may be slidably disposed in the lock body 200, and a portion of the inclined tongue connecting plate 320 close to the locking plate 1010 may be connected to the inclined tongue 310, a first abutment portion 330 may be disposed on a portion of the inclined tongue connecting plate 320 away from the locking plate 1010, and the inclined tongue extending drive member 700 may be connected to the inclined tongue connecting plate 320.

[0087] The latch bolt assembly 300 may include two first anti-collision wear-resistant parts 350, and the latch bolt 310 may be provided with two notches 311, the two first anti-collision wear-resistant parts 350 are respectively located in the two notches 311, and the two notches 311 may be located at the upper and lower sides of the latch bolt 310, and the two first anti-collision wear-resistant parts 350 may be connected to the latch bolt 310 through a connecting shaft 360, and specifically, the connecting shaft 360 may pass through the two first anti-collision wear-resistant parts 350 in sequence along the vertical direction and be connected to the latch bolt 310.

[0088] In an optional embodiment, if Fig.15 and Fig.16 As shown, the detection tongue assembly 500 may include a detection tongue 510 and a second anti-collision wear-resistant member 540, the detection tongue 510 may be transmission-connected to the oblique tongue assembly 300, and the detection tongue 510 may be provided with a receiving space, the first part of the second anti-collision wear-resistant member 540 may be provided in the receiving space, and the second part of the second anti-collision wear-resistant member 540 may protrude from the detection tongue 510 in a direction away from the lock body 200 and in a thickness direction of the lock body 200. In this way, when the door is opened or closed, the second anti-collision wear-resistant member 540 may collide with the strike plate 1010, which can prevent the detection tongue 510 from colliding with the strike plate 1010, which can not only reduce or eliminate the collision noise, but also prevent the detection tongue 510 from being worn.

[0089] Optionally, the second anti-collision wear-resistant member 540 can be made of plastic, which can reduce costs and reduce noise caused by collision.

[0090] In other embodiments, the detection tongue assembly 500 may include only the detection tongue 510 .

[0091] In this embodiment, the detection tongue assembly 500 may also include a detection tongue guide plate 520, which is connected to the detection tongue 510, and a limit plate 280 may be provided on the lock body 200, and a guide groove is provided on the limit plate 280, which may extend along the telescopic direction of the detection tongue assembly 500, and the detection tongue guide plate 520 is slidably matched with the guide groove, and the detection tongue guide plate 520 is in surface contact with the guide groove, and the two are matched at the circumferential upper limit of the detection tongue guide plate 520.

[0092] Here, the connecting plate 530 may be disposed on the detecting tongue guide plate 520 .

[0093] Optionally, the detection tongue 510 may include a first tongue body 511 and a second tongue body 512, a receiving space may be formed between the first tongue body 511 and the second tongue body 512, a through hole may be provided on the second anti-collision wear-resistant part 540, a connecting column may be provided on the first tongue body 511, and the connecting column may pass through the through hole of the second anti-collision wear-resistant part 540 and be connected to the second tongue body 512. In addition, the detection tongue guide plate 520 may be connected to the second tongue body 512 via a connecting member 550, and specifically, the connecting member 550 may be a pin or a bolt.

[0094] In an optional embodiment of the present application, Figure 8As shown, the lock 100 may also include a square tongue assembly 400, which is telescopically arranged on the lock body 200. The square tongue assembly 400 may include a square tongue 410 and a square tongue plate 420. The square tongue plate 420 may be connected to the square tongue 410, and the square tongue plate 420 may be used to connect to the driving motor 610 of the oblique tongue retraction drive member 600, and the driving motor 610 may drive the square tongue assembly 400 to retract and retract.

[0095] The lock body 200 may include a lock base plate 210, a first flange 220 and a second flange 230. The first flange 220 and the second flange 230 may be respectively arranged on opposite sides of the lock base plate 210, and a square tongue hole may be arranged on the first flange 220, and the square tongue 410 may extend out of the lock body 200 through the square tongue hole.

[0096] A first buffer 240 may be provided on one side of the first flange 220 facing the second flange 230. The first buffer 240 may be provided close to the square tongue hole. When the square tongue assembly 400 extends out of the lock body 200, the square tongue plate 420 contacts the first buffer 240. In this way, the first buffer 240 can alleviate the impact between the square tongue assembly 400 and the first flange 220, and reduce the noise caused by the collision between the square tongue assembly 400 and the first flange 220.

[0097] A second buffer 250 may be provided on one side of the second flange 230 facing the first flange 220, and the second buffer 250 may be opposite to the tongue plate 420. When the tongue assembly 400 is retracted in the lock body 200, the tongue plate 420 contacts the second buffer 250. In this way, the second buffer 250 can alleviate the impact between the tongue assembly 400 and the second flange 230, and reduce the noise caused by the collision between the tongue assembly 400 and the second flange 230.

[0098] In other embodiments, no buffer is provided on the first flange 220 and the second flange 230 .

[0099] In an optional embodiment, two first buffer members 240 may be provided on the side of the first flange 220 facing the second flange 230 , and the two first buffer members 240 may be respectively located on the upper and lower sides of the square tongue hole, and the two first buffer members 240 are both arranged close to the square tongue hole.

[0100] In this embodiment, both the first buffer member 240 and the second buffer member 250 may be made of silicone.

[0101] In an optional embodiment, the lock 100 may further include a detection switch, which can be used to detect the state of the detection tongue assembly 500. The detection switch can be communicated with the drive motor 610. When the detection tongue assembly 500 is in an extended state, the detection switch is in a first state. At this time, the drive motor 610 controls the square tongue assembly 400 to extend out of the lock body 200 and into the square tongue lock hole 1012 of the lock plate 1010 to achieve locking.

[0102] The detection switch may be located in the lock body 200 . When the detection tongue assembly 500 is in the retracted state, the detection tongue assembly 500 contacts the detection switch, so that the detection switch is in the second state.

[0103] Here, the detection switch may be a micro switch, the first state may be a normally open state, and the second state may be a normally closed state.

[0104] Optionally, the lock 100 may further include a control circuit board, and the detection switch and the drive motor 610 may be communicatively connected to the control circuit board. When the detection switch is switched to the first state, the control circuit board controls the drive motor 610 to drive the tongue assembly 400 to extend.

[0105] Further optionally, a timer is provided on the control circuit board. When the latch bolt retraction driving member 600 drives the latch bolt assembly 300 to retract into the lock body 200, the timer starts timing. When the value of the timer reaches a preset time, the control circuit board controls the latch bolt retraction driving member 600 to move in the reverse direction. Specifically, the control circuit board controls the driving motor 610 to reverse, so that the latch bolt assembly 300 and the detection tongue assembly 500 can extend out of the lock body 200.

[0106] Here, the preset time may be 3-5 seconds.

[0107] Based on the lock 100 disclosed in the present application, the present application embodiment also provides an anti-theft door, such as Fig.17 and Fig.18 As shown, the anti-theft door may include a door frame 1000, a door body 1100, and the lock 100 described in any of the above embodiments. A strike plate 1010 may be provided on the first side of the door frame 1000, the door body 1100 may be located in the door frame 1000, the first side of the door body 1100 may be opposite to the strike plate 1010, the second side of the door body 1100 may be rotatably connected to the second side of the door frame 1000, the lock 100 may be installed at the first side of the door body 1100, and the lock 100 may be used to lock the door body 1100 and the strike plate 1010.

[0108] The beneficial effects achieved by the anti-theft door provided in the embodiment of the present application are consistent with the beneficial effects achieved by the lock 100 provided in the embodiment of the present application, and will not be repeated here.

[0109] In an optional embodiment of the present application, a latch hole 1011 may be provided on the lock plate 1010, and the latch 310 of the latch assembly 300 of the lock 100 may extend into the latch hole 1011, and a first mute piece 1020 may be provided on the first side of the door frame 1000. The first mute piece 1020 may be provided close to the latch hole 1011, and the first mute piece 1020 may be located on the rotation path of the door body 1100. In this way, when the door body 1100 is closed, the latch 310 preferentially touches the first mute piece 1020, and the first mute piece 1020 may reduce the impact of the latch 310 and reduce the noise generated by the collision of the latch 310.

[0110] Of course, the first sound-proofing sheet 1020 may not be provided on the locking plate 1010 .

[0111] In an optional embodiment, the lock plate 1010 may also be provided with a detection tongue collision position 1013 and a second silent piece 1030, the second silent piece 1030 may be provided close to the detection tongue collision position 1013, and the second silent piece 1030 may be located on the rotation path of the door body 1100. In this way, when the door body 1100 is closed, the detection tongue 510 will preferentially touch the second silent piece 1030, and the second silent piece 1030 may reduce the impact of the detection tongue 510 and reduce the noise generated by the collision of the detection tongue 510.

[0112] In other embodiments, the second sound-proofing sheet 1030 may not be provided on the locking plate 1010 .

[0113] Optionally, the first sound-proof sheet 1020 and the second sound-proof sheet 1030 may both be plastic plates.

[0114] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A lock, characterized in that: include: Lock body (200); A latch bolt assembly (300) is telescopically arranged on the lock body (200); A latch bolt extension driving member (700) is arranged on the lock body (200), the latch bolt extension driving member (700) is connected to the latch bolt assembly (300), and the latch bolt extension driving member (700) is used to drive the latch bolt assembly (300) to extend out of the lock body (200); A latch bolt retracting driving member (600) is disposed on the lock body (200), and the latch bolt retracting driving member (600) is used to drive the latch bolt assembly (300) to retract into the lock body (200); The inclined tongue retracting driving member (600) is provided with a first toggle portion (632), and the inclined tongue assembly (300) is provided with a first abutting portion (330). The first toggle portion (632) is located on a side of the first abutting portion (330) close to the locking plate (1010), and the first toggle portion (632) can abut against the first abutting portion (330).

2. The lock according to claim 1, characterized in that: The latch bolt retracting drive member (600) comprises a driving motor (610) and a first transmission assembly, wherein the first transmission assembly comprises a transmission wheel (620) and a dial (630) rotatably connected to the lock body (200), the transmission wheel (620) is transmission-connected to the driving motor (610), the first dial portion (632) is arranged on the dial (630), and the dial (630) is provided with a first arc-shaped rack (631), and the first arc-shaped rack (631) is meshed with the transmission wheel (620).

3. The lock according to claim 1, characterized in that: Also includes: A detection tongue assembly (500) is telescopically arranged on the lock body (200); A second transmission assembly (900) is connected to the detection tongue assembly (500), and a second abutting portion (930) is provided on the second transmission assembly (900). A second toggle portion (340) is provided on the inclined tongue assembly (300), and the second abutting portion (930) is located on a side of the second toggle portion (340) away from the locking plate (1010), and the second abutting portion (930) can abut against the second toggle portion (340).

4. The lock according to claim 3, characterized in that: The second transmission assembly (900) comprises: A first transmission arm (910) is rotatably disposed on the lock body (200); the second abutment portion (930) is disposed on a first edge of the first transmission arm (910); and a second arc-shaped rack (911) is disposed at a second edge of the first transmission arm (910); The second transmission arm (920) is rotatably arranged on the lock body (200); a first edge of the second transmission arm (920) is provided with a third arc-shaped rack (921); the third arc-shaped rack (921) is meshed with the second arc-shaped rack (911); and a second edge of the second transmission arm (920) is connected to the detection tongue assembly (500).

5. The lock according to claim 4, characterized in that: Also includes: A detection tongue extension driving member (800) is arranged on the lock body (200), and the detection tongue extension driving member (800) is used to drive the detection tongue assembly (500) to extend, and the detection tongue extension driving member (800) is connected to the second transmission arm (920).

6. The lock according to claim 1, characterized in that: The inclined tongue assembly (300) comprises an inclined tongue (310) and a first anti-collision wear-resistant part (350), wherein the first abutting portion (330) is arranged on the inclined tongue (310), and a notch (311) is arranged on the inclined tongue (310), and a first portion of the first anti-collision wear-resistant part (350) is arranged in the notch (311), and a second portion of the first anti-collision wear-resistant part (350) protrudes from the inclined surface of the inclined tongue (310) in a direction away from the lock body (200).

7. The lock according to claim 3, characterized in that: The detection tongue assembly (500) comprises a detection tongue (510) and a second anti-collision wear-resistant part (540); the detection tongue (510) is transmission-connected to the oblique tongue assembly (300); the detection tongue (510) is provided with a receiving space; a first portion of the second anti-collision wear-resistant part (540) is provided in the receiving space; and a second portion of the second anti-collision wear-resistant part (540) protrudes from the detection tongue (510) in a direction away from the lock body (200) and in a thickness direction of the lock body (200).

8. The lock according to claim 1, characterized in that: The lock further comprises a square tongue assembly (400), wherein the square tongue assembly (400) is telescopically arranged on the lock body (200), and the square tongue assembly (400) comprises a square tongue (410) and a square tongue plate (420) connected to the square tongue (410); The lock body (200) comprises a lock bottom plate (210), a first flange (220) and a second flange (230), wherein the first flange (220) and the second flange (230) are respectively arranged on two opposite sides of the lock bottom plate (210), and a square tongue hole is arranged on the first flange (220), and the square tongue (410) can pass through the square tongue hole and extend out of the lock body (200); A first buffer (240) is provided on one side of the first flange (220) facing the second flange (230), and the first buffer (240) is arranged close to the square tongue hole. When the square tongue assembly (400) extends out of the lock body (200), the square tongue plate (420) contacts the first buffer (240); A second buffer (250) is provided on the side of the second flange (230) facing the first flange (220), and the second buffer (250) is opposite to the square tongue plate (420). When the square tongue assembly (400) is retracted in the lock body (200), the square tongue plate (420) is in contact with the second buffer (250).

9. A burglary-proof door, characterized in that: include: A door frame (1000), wherein a locking plate (1010) is provided on a first side edge of the door frame (1000); A door body (1100) is located inside the door frame (1000), a first side edge of the door body (1100) can be opposite to the lock plate (1010), and a second side edge of the door body (1100) is rotatably connected to a second side edge of the door frame (1000); The lock (100) described in any one of claims 1 to 8 is installed at a first side edge of the door body (1100), and is used to lock the door body (1100) and the locking plate (1010).

10. The anti-theft door according to claim 9, characterized in that: The locking plate (1010) is provided with an inclined tongue hole (1011), and the inclined tongue (310) of the inclined tongue assembly (300) of the lock (100) can extend into the inclined tongue hole (1011), and a first silent plate (1020) is also provided on the first side of the door frame (1000), the first silent plate (1020) is arranged close to the inclined tongue hole (1011), and the first silent plate (1020) is located on the rotation path of the door body (1100).

11. The anti-theft door according to claim 9, characterized in that: The lock plate (1010) is also provided with a detection tongue collision position (1013) and a second silent plate (1030), wherein the second silent plate (1030) is arranged close to the detection tongue collision position (1013), and the second silent plate (1030) is located on the rotation path of the door body (1100).

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