Automatic tongue lock

Abstract

A flap automatic lock. It solves the problem that the existing internal door lock has a complex structure and is troublesome to open the door. It includes a shell and a flap. The flap has a first position in which it slides relative to the shell when closed and a second position in which it rotates relative to the shell when opened. A mechanical operating mechanism and a limiter are provided in the shell. The limiter has a first position in which the flap is limited to flip and a second position in which the flap is unlocked to facilitate free movement of the flap. The mechanical operating mechanism is connected to the limiter to drive the limiter to move. A first elastic member is provided on the shell. The first elastic member is connected to the limiter and has a movement tendency to drive the limiter to the first position. The existing lock of the present invention has a complex structure and unreliable transmission. Through the setting of the flap, the flap can rotate freely after the limiter is unlocked, which is convenient for opening and closing the door. The flap can realize the door locking function by locking by the limiter, and has a wide range of adaptability.

Description

Technical Field

[0001] The invention relates to a full-automatic lock, in particular to a tongue-turning automatic lock. Background Art

[0002] At present, the door locks used for interior rooms mainly include straight handle door locks and round handle door locks, which are usually used on wooden doors and usually set up in the room for use. The product size is small. After these two door locks are locked, they can only be opened from the inside and can only be opened from the outside with a key. Therefore, this type of door lock is very inconvenient to use, and its structure is also relatively complex, and the cost is relatively high. In addition, the mechanical key unlocking method has a low safety factor and is easy to unlock with technology. At the same time, it is necessary to carry a key to unlock. Once the key is lost, it is necessary to pry the lock, which causes the user to carry multiple keys, which is inconvenient to carry and use. In addition, the existing interior door locks usually adopt a single oblique tongue method (including an oblique tongue with a forked tongue or a square tongue), and the oblique tongue is pushed out by a transmission member to lock the door with the door frame. The flip tongue is usually used on the exterior door lock. Due to the flipping characteristics of its lock tongue, it cannot play the role of locking the door by itself. It is usually used in conjunction with the main lock tongue, oblique tongue, etc. on the exterior door. At present, the traditional interior door lock structure is relatively complex, the transmission is unreliable, the door is difficult to open, and the function is relatively single. Summary of the invention

[0003] In order to solve the problems in the prior art that the existing inner door lock has a complicated structure and is troublesome to open the door, the present invention provides an automatic tongue-twisting lock.

[0004] The technical solution of the present invention is: a flap automatic lock, including a shell and a flap, the flap having a first position of sliding fit relative to the shell when closed and a second position of relative rotation when opened, a mechanical operating mechanism and a limit member are arranged in the shell, the limit member having a first position of limiting the flipping of the flap and a second position of unlocking to facilitate the free movement of the flap, the mechanical operating mechanism is connected to the limit member for driving the limit member to move, a first elastic member is arranged on the shell, the first elastic member is connected to the limit member and has a movement tendency of driving the limit member toward the first position.

[0005] As a further improvement of the present invention, a limiting groove is provided on the flap, and a limiting portion is provided on the limiting member. When the limiting member is in the first position, the limiting portion is inserted into the limiting groove for limiting the flipping of the flap, and when the limiting member is in the first position, the flap slides and cooperates with the limiting portion.

[0006] As a further improvement of the present invention, the mechanical operating mechanism includes an operating member, an operating block is provided on the operating member, a first transmission part adapted to the operating block is provided on the limiting member, and the operating block drives the limiting member to move to unlock the flap by rotating.

[0007] As a further improvement of the present invention, a second elastic member for resetting the operating member is provided on the shell, a retaining block is provided on the first transmission part, and after the operating member passes over the retaining block, the retaining block limits the limiting member so that the limiting member is maintained in the second position.

[0008] As a further improvement of the present invention, the operating member is provided with a reset portion for facilitating the second elastic member to provide elastic force and a retaining portion for rendering the second elastic member ineffective. There are two second elastic members, and the elastic feet of the two second elastic members are arranged on the outside of the reset portion.

[0009] As a further improvement of the present invention, an electric operating mechanism is provided in the shell, and the electric operating mechanism is connected to the limit member for driving the limit member to move. The electric operating mechanism includes a power source, a transmission assembly and a paddle. The power source is connected to the paddle through the transmission assembly and is used to drive the paddle to rotate. The limit member is provided with a second transmission part that is compatible with the paddle.

[0010] As a further improvement of the present invention, the transmission assembly includes a driving wheel and a transmission wheel, the driving wheel and the transmission wheel are meshed with each other, the transmission wheel cooperates with the paddle to drive the paddle to rotate, and the paddle is provided with a driving member for driving the limit member to move.

[0011] As a further improvement of the present invention, the transmission wheel and the paddle cooperate with each other through a clamping block and a clamping slot to form a linkage connection, a notch for accommodating the driving member is provided on the paddle, and the second transmission part is arranged in an arc shape.

[0012] As a further improvement of the present invention, a fork tongue is provided on the flap tongue, the fork tongue is hinged on the flap tongue, a limit block is provided on the fork tongue, an inclined surface and an arc-shaped flipping portion are provided on the flap tongue, a guide block and a third elastic member are provided on the shell, and the third elastic member is against the fork tongue and / or the flap tongue through the guide block and is used to drive the flap tongue to extend out of the shell.

[0013] As a further improvement of the present invention, the limit member is hinged on the shell, and a push rod and a fourth elastic member are provided on the shell. The fourth elastic member is abutted against the limit member through the push rod and cooperates with the mechanical operating mechanism to keep the limit member in the second position.

[0014] The beneficial effects of the present invention are that the existing locks have complex structures and unreliable transmission. Through the setting of the flap, the flap can rotate freely after unlocking the limiter, which is convenient for opening and closing the door, and the flap can achieve the door locking function through locking the limiter. The structure is simple, the opening force is small, and the adaptation range is wide. The present invention also has the advantages of simple structure, convenient assembly, reliable action, long service life, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] AttachedFigure 1 It is a schematic structural diagram of an embodiment of the present invention.

[0016] Attached Figure 2 The figure is a schematic diagram of the explosion structure of an embodiment of the present invention.

[0017] Attached Figure 3 It is a structural schematic diagram of the mechanical operating mechanism according to an embodiment of the present invention.

[0018] Attached Figure 4 For attachment Figure 3 Schematic diagram of the explosion structure.

[0019] Attached Figure 5 For attachment Figure 4 Schematic diagram of the structure of the operating slide.

[0020] Attached Figure 6 The figure is a schematic diagram of the exploded structure of the electric operating mechanism according to the embodiment of the present invention.

[0021] Attached Figure 7 Schematic diagram of the structure of the tongue flap in an embodiment of the present invention.

[0022] Attached Figure 8 Schematic diagram of the structure of the limiter in the embodiment of the present invention.

[0023] Attached Fig. 9 It is a schematic diagram of the structure when the limiting member is retained according to an embodiment of the present invention.

[0024] In the figure, 1, shell; 11, first elastic member; 12, second elastic member; 13, guide block; 14, third elastic member; 15, push rod; 16, fourth elastic member; 2, flap; 21, limit groove; 22, inclined surface; 23, arc-shaped flip part; 3, electric operating mechanism; 31, power source; 32, transmission assembly; 321, driving wheel; 322, transmission wheel; 33, paddle; 34, driving member; 35, block; 36, slot; 37, notch; 4, mechanical operating mechanism; 41, operating member; 411, operating block; 412, reset part; 413, holding part; 5, limit member; 51, limit part; 52, first transmission part; 53, holding block; 54, second transmission part; 6, fork tongue; 61, limit block. DETAILED DESCRIPTION

[0025] The embodiments of the present invention are further described below in conjunction with the accompanying drawings:

[0026] Depend on Figure 1 Combination Figure 2-9As shown, a flap automatic lock includes a housing 1 and a flap 2, wherein the flap 2 has a first position of sliding relative to the housing 1 when closed and a second position of relative rotation when opened, wherein a mechanical operating mechanism 4 and a limiting member 5 are arranged in the housing 1, wherein the limiting member 5 has a first position of limiting the flap 2 to flip and a second position of unlocking to facilitate the free movement of the flap 2, wherein the mechanical operating mechanism 4 is connected to the limiting member 5 to drive the limiting member 5 to move, wherein a first elastic member 11 is arranged on the housing 1, wherein the first elastic member 11 is connected to the limiting member 5 and has a movement tendency of driving the limiting member 5 to move toward the first position. The beneficial effect of the present invention is that the existing lock has a complex structure and unreliable transmission, and through the setting of the flap, the flap can rotate freely after unlocking the limiting member, which is convenient for opening and closing the door, and the flap can realize the door locking function through locking by the limiting member, and the structure is simple, the opening force is small, and the adaptability range is wide. The present invention also has the advantages of simple structure, convenient assembly, reliable action, and long service life. Specifically, the limiter also has a third position to be maintained, that is, when the limiter is maintained, the first elastic member cannot reset the limiter. Specifically, it can be realized by a mechanical operating mechanism or an electric operating mechanism, and the electric operating mechanism can be realized by controlling the action of the power source through a button (control member) through a circuit board. The mechanical operating mechanism can be realized by the cooperation of the operating member and the holding part, or an additional limiter for the holding member is set, such as a button or a latch. When the limiter needs to be kept in the normally open (third position), the button latch is pressed (or rotated) to reset the limiter by mechanical interlocking. More specifically, the limiter 5 is hinged on the housing 1, and the housing 1 is provided with a push rod 15 and a fourth elastic member 16. The fourth elastic member 16 is abutted against the limiter 5 through the push rod 15 and cooperates with the mechanical operating mechanism 4 to keep the limiter 5 in the second position. The present invention also provides a way for the push rod to cooperate with the limiter, and the fourth elastic member can provide an additional restoring force when the limiter is in the second position, so that the limiter tends to the first position, so that the tongue interlock is reliable. When the operating member rotates beyond the retaining portion, the push rod pushes the limit member at the fourth elastic position, and the operating block of the operating member pushes against the other side of the limit member. The limit member is hinged to the shell at the end. Therefore, the push rod and the operating block cooperate with each other to make the limit member stuck and prevent the limit member from resetting. At this time, the fourth elastic member provides a push force through the push rod, which is mainly used to generate a large friction between the limit member and the operating block, so as to avoid the unlocking of the operating member due to the shaking of the operating member or the door during the use of the limit member in the third position, so that the product interlocking is convenient and reliable, and the reset of the operating member and the limit member is avoided. When the limit member is in the first position, the flip tongue is limited by the limit member and cannot be opened. It can only be operated by the mechanical operating mechanism or the electric operating mechanism. At this time, it is similar to the oblique tongue locking door. When the mechanical operating mechanism or the electric operating mechanism is activated, the limit member is unlocked, and the door can be opened at this time. Compared with the oblique tongue, its opening force is smaller and the stroke is shorter. It is more suitable for motor-driven opening and is less affected by the friction of the door or the lock body.When the limiter is in the third position, the door opening and closing is not controlled by the flap, the door only blocks the left and right, and can be pushed open without any operation, which is convenient for opening and closing the door at will, and the door can be opened without operating the handle or operating part, saving time and effort and being simple to operate.

[0027] The flap 2 is provided with a limit groove 21, and the limit member 5 is provided with a limit portion 51. When the limit member 5 is in the first position, the limit portion 51 is inserted into the limit groove 21 for the flap 2 to be turned and limited. When the limit member 5 is in the first position, the flap 2 is slidably matched with the limit portion 51. Such a structure can reliably interlock the flap to turn when the limit member is in the first position. When the limit member is in the second position, the flap can turn freely, which is convenient for opening the door with less effort (especially when the motor opens the door). When the limit member is in the third position, the door can be opened without operating the operating member. Compared with the method of using a slanted tongue, when the door is heavy, the sealing strip is tightly sealed, the house or the door is shifted, etc., the motor cannot drive the slanted tongue to open well, and it is more laborious to open and close. The flap opening stroke is small and the required power is small. Therefore, when used in the inner door, the structure is simple, the transmission is convenient, the operation is reliable, and the energy consumption is small.

[0028] The mechanical operating mechanism 4 includes an operating member 41, an operating block 411 is provided on the operating member 41, and a first transmission part 52 adapted to the operating block 411 is provided on the limiting member 5. The operating block 411 drives the limiting member 5 to move and unlock the flap 2 by rotating. Specifically, the housing 1 is provided with a second elastic member 12 for resetting the operating member 41, and the first transmission part 52 is provided with a retaining block 53. After the operating member 41 passes over the retaining block 53, the retaining block 53 is retained by the retaining block 53 so that the limiting member 5 is retained in the second position. More specifically, the operating member 41 is provided with a resetting part 412 for facilitating the second elastic member 12 to provide elastic force and a retaining part 413 for making the second elastic member 12 ineffective. There are two second elastic members 12, and the elastic feet of the two second elastic members 12 are arranged on the outside of the resetting part 412. Specifically, the operating member can be connected to the handle or be an integrated structure with the handle. The operating handle or the operating member can cause the operating block to move, thereby controlling the movement of the limiting member. Of course, in the actual production process, a key unlocking mechanism can also be set on the operating part, and the rotation of the key drives the operating part to rotate so as to control the position of the limit part. When the operating block is in the holding block, the operating part can be prevented from resetting, and the operating block can also prevent the limit part from resetting, so that the limit part is in the third position. Of course, in the present invention, the operating block cooperates with the push rod to make the limit part pressed tighter and tighter, and the position of the limit part can still be well maintained even when it shakes, shifts or moves multiple times, so as to facilitate the flipping of the flap.

[0029] The housing 1 is provided with an electric operating mechanism 3, which is connected to the limiter 5 for driving the limiter 5 to move. The electric operating mechanism 3 includes a power source 31, a transmission assembly 32 and a paddle 33. The power source 31 is connected to the paddle 33 through the transmission assembly 32 and is used to drive the paddle 33 to rotate. The limiter 5 is provided with a second transmission part 54 adapted to the paddle 33. Such a structure can reliably drive the limiter to rotate, thereby unlocking the flap. Specifically, in order to facilitate operation and adapt to user operating habits, there are two first transmission parts adapted to the operating part and they are symmetrically arranged, while only one second transmission part is arranged to reduce costs.

[0030] The transmission assembly 32 includes a driving wheel 321 and a transmission wheel 322, the driving wheel 321 and the transmission wheel 322 are meshed with each other, the transmission wheel 322 cooperates with the paddle 33 to drive the paddle 33 to rotate, and the paddle 33 is provided with a driving member 34 for driving the limiter 5 to move. Specifically, the transmission wheel 322 and the paddle 33 cooperate with each other through the clamping block 35 and the clamping groove 36 to form a linkage connection, the paddle 33 is provided with a notch 37 for accommodating the driving member 34, and the second transmission part 54 is arranged in an arc shape. Such a structure is simple, easy to operate, and reliable in transmission.

[0031] The flap 2 is provided with a fork tongue 6, the fork tongue 6 is hinged on the flap 2, the fork tongue 6 is provided with a limit block 61, the flap 2 is provided with an inclined surface 22 and an arc-shaped flip portion 23, the housing 1 is provided with a guide block 13 and a third elastic member 14, the third elastic member 14 is against the fork tongue 6 and / or the flap 2 through the guide block 13 and is used to drive the flap 2 to extend out of the housing 1. When closing the door, the fork tongue first hits the door frame, and flips. At this time, the limit block makes the fork tongue and the flap retract (toward the inside of the housing), and when the fork tongue is matched with the inclined surface of the flap, it is synchronously retreated to the position, and then controlled by the third elastic member to pop out of the housing to lock the door body. Generally speaking, the limit member is in the first position at this time, and the door cannot be opened; the operating member is rotated or the motor is controlled to make the limit member in the second position (the same is true when the limit member is in the third position), and the limit member is unlocked at this time, and the flap can be flipped freely. At this time, the door is pushed and the flap is flipped, and the door is opened.

[0032] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0034] Technical personnel should note that although the present invention has been described according to the above specific implementation methods, the inventive concept of the present invention is not limited to this invention, and any modification using the inventive concept will be included in the scope of protection of this patent.

Claims

1. A tongue-turning automatic lock, comprising a housing (1) and a tongue-turning lock (2), Features The flap (2) has a first position in which it slides relative to the housing (1) when closed and a second position in which it rotates relative to the housing (1) when opened. A mechanical operating mechanism (4) and a limiting member (5) are provided in the housing (1). The limiting member (5) has a first position in which the flap (2) is limited to flip and a second position in which the flap (2) is unlocked to facilitate free movement. The mechanical operating mechanism (4) is connected to the limiting member (5) and is used to drive the limiting member (5) to move. A first elastic member (11) is provided on the housing (1). The first elastic member (11) is connected to the limiting member (5) and has a movement tendency to drive the limiting member (5) toward the first position. The mechanical operating mechanism (4) includes an operating member (41). An operating block (411) is provided on the operating member (41). The limiting member (5) ) is provided with a first transmission part (52) adapted to the operating block (411), the operating block (411) driving the limiting member (5) to move and unlock the flap (2) by rotating; the housing (1) is provided with a second elastic member (12) for resetting the operating member (41); the first transmission part (52) is provided with a retaining block (53); after the operating member (41) passes over the retaining block (53), the retaining block (53) limits the limiting member (5) so that the limiting member (5) is maintained in the second position; the limiting member (5) is hinged to the housing (1); the housing (1) is provided with a push rod (15) and a fourth elastic member (16); the fourth elastic member (16) abuts against the limiting member (5) through the push rod (15) and cooperates with the mechanical operating mechanism (4) so ​​that the limiting member (5) is maintained in the second position.

2. The automatic tongue lock according to claim 1, Features The flap (2) is provided with a limiting groove (21), and the limiting member (5) is provided with a limiting portion (51). When the limiting member (5) is in the first position, the limiting portion (51) is inserted into the limiting groove (21) to limit the flap (2) when the limiting member (5) is in the first position. When the limiting member (5) is in the first position, the flap (2) slides and cooperates with the limiting portion (51).

3. The automatic tongue lock according to claim 1, Features The operating member (41) is provided with a reset portion (412) for facilitating the second elastic member (12) to provide elastic force, and a retaining portion (413) for rendering the second elastic member (12) ineffective. There are two second elastic members (12), and the elastic feet of the two second elastic members (12) are arranged outside the reset portion (412).

4. The automatic tongue lock according to claim 1, Features An electric operating mechanism (3) is provided in the housing (1); the electric operating mechanism (3) is connected to the limiting member (5) for driving the limiting member (5) to move; the electric operating mechanism (3) comprises a power source (31), a transmission assembly (32) and a paddle (33); the power source (31) is connected to the paddle (33) via the transmission assembly (32) and is used to drive the paddle (33) to rotate; and the limiting member (5) is provided with a second transmission portion (54) adapted to the paddle (33).

5. The automatic tongue lock according to claim 4, Features The transmission assembly (32) comprises a driving wheel (321) and a transmission wheel (322), wherein the driving wheel (321) and the transmission wheel (322) are meshed with each other, and the transmission wheel (322) cooperates with the paddle (33) to drive the paddle (33) to rotate, and a driving member (34) is provided on the paddle (33) to drive the limiting member (5) to move.

6. The automatic tongue lock according to claim 5, Features The transmission wheel (322) and the paddle (33) cooperate with each other through a clamping block (35) and a clamping slot (36) to form a linkage connection; a notch (37) for accommodating a driving member (34) is provided on the paddle (33); and the second transmission portion (54) is arranged in an arc shape.

7. The automatic tongue lock according to claim 1, Features The flap (2) is provided with a fork tongue (6), the fork tongue (6) is hinged on the flap (2), the fork tongue (6) is provided with a limit block (61), the flap (2) is provided with an inclined surface (22) and an arc-shaped flip portion (23), the housing (1) is provided with a guide block (13) and a third elastic member (14), the third elastic member (14) is abutted against the fork tongue (6) and / or the flap (2) through the guide block (13) and is used to drive the flap (2) to extend out of the housing (1).

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