A handle-type smart door lock

Abstract

The application provides a handle type intelligent door lock, which comprises a shell, a driving motor, a lock tongue, a square steel connecting seat, a first motor driving piece, a second motor driving piece, a lock tongue driving piece, a handle driving piece and a rocker, wherein the first motor driving piece and the second motor driving piece are arranged, when the square steel connecting seat rotates along the unlocking direction or the locking direction under the driving of the handle, the first motor driving piece moves synchronously with the square steel connecting seat, the first driving foot is pushed by the first motor driving piece to drive the second driving foot to rotate relative to the shell, the second driving foot abuts against the driving motor, and then the driving motor is pushed by the second driving foot to move until the driving motor is separated from the gear set. When the door is unlocked by the handle, the motor self-resistance needs to be overcome to complete the unlocking action, so that the force for unlocking is large, and the use experience of the customer is affected.

Description

Technical Field

[0001] The present invention relates to the technical field of lock bodies, and in particular to a handle-type intelligent door lock. Background Art

[0002] As the population continues to increase, the number of houses is also increasing. Door locks are one of the important structures that control the opening and closing of houses.

[0003] Existing handle-type smart door locks are mainly unlocked by fingerprints, passwords and induction cards. After the internal chip is processed, the control motor drives the follower to realize the unlocking action. However, in the current use process, since the motor used to control the unlocking is mainly transmitted through gears, there is a large resistance between the motor and the transmission gear. When the handle is used to drive the lock, the motor's own resistance needs to be overcome to complete the unlocking action, which makes the unlocking operation force large, affecting the customer's experience. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is that the handle-type smart door lock in the existing technology is mainly unlocked by fingerprints, passwords and induction cards. After the internal chip processing is completed, the control motor drives the follower to realize the unlocking action. However, in the current use process, since the motor used to control the unlocking is mainly transmitted through gears, there is a large resistance between the motor and the transmission gear. When the handle is used to drive the unlocking, the motor's own resistance needs to be overcome to complete the unlocking action, which makes the force required to operate the unlocking large, affecting the customer's usage experience.

[0005] To this end, the present invention provides a handle-type smart door lock, comprising a housing, a drive motor, a lock tongue, and a square steel connecting seat, wherein the drive motor is adapted to drive the lock tongue to extend and retract via a gear set; the square steel connecting seat is adapted to connect a handle to control the extension and retraction of the lock tongue, and further comprising:

[0006] a first motor paddle, which is sleeved on the square steel connecting seat and moves synchronously with the square steel connecting seat, and a paddle block is provided on the first motor paddle;

[0007] a second motor paddle, movably connected to the housing and disposed on one side of the drive motor, the second motor paddle comprising a first paddle pin and a second paddle pin, the first paddle pin abutting against the paddle block, and the second paddle pin abutting against the drive motor;

[0008] Among them, the square steel connecting seat is configured to rotate in the unlocking direction or locking direction under the drive of the handle, so as to drive the first motor paddle to rotate in the same direction, and push the first paddle foot through the paddle block to drive the second paddle foot to rotate relative to the shell, so as to drive the drive motor to move until it is separated from the gear set.

[0009] Optionally, the shift block includes a first shift block and a second shift block;

[0010] The square steel connecting seat is configured so that when the handle drives the square steel connecting seat to rotate in the unlocking direction, the first shifting block pushes the first shifting foot to drive the second shifting foot to rotate relative to the housing.

[0011] The square steel connecting seat is configured so that when the handle drives the square steel connecting seat to rotate in the locking direction, the second shifting block pushes the first shifting foot to drive the second shifting foot to rotate relative to the housing.

[0012] Optionally, the side of the first shifting foot in contact with the first shifting block and the second shifting block is an arc surface, and the first shifting block and the second shifting block slide on the arc surface to push the second motor shifting piece to rotate relative to the housing.

[0013] Optionally, when the square steel connecting seat rotates in the locking direction, the first motor paddle rotates synchronously with the square steel connecting seat to push the lock tongue out of the shell.

[0014] Optionally, it further comprises a lock tongue pick, which is sleeved on the square steel connecting seat, and the lock tongue pick is provided with a third pick block suitable for being slidably arranged in the lock tongue groove;

[0015] When the square steel connecting seat rotates in the unlocking direction, the lock tongue shift piece is driven by the square steel connecting seat to drive the third shift block to move toward the inside of the shell, so as to drive the lock tongue to retract into the shell.

[0016] Optionally, it also includes:

[0017] A handle paddle is sleeved on the square steel connecting seat and moves synchronously with the square steel connecting seat;

[0018] a tilting rod hinged to the housing, one end of the tilting rod abutting against the handle paddle, and the other end of the tilting rod abutting against the fourth paddle block on the lock tongue paddle;

[0019] When the square steel connecting seat rotates in the unlocking direction, the handle paddle is driven by the square steel connecting seat to push the tilting rod to rotate, and the third paddle is driven to move toward the inside of the shell through the fourth paddle and the lock tongue paddle to drive the lock tongue to retract into the shell.

[0020] Optionally, when the square steel connecting seat rotates in the locking direction to push the lock tongue out of the shell, the lock tongue paddle is driven by the tongue to reset, and the lock tongue paddle drives the tilting rod and the handle paddle to reset through the fourth shift block.

[0021] Optionally, the joints between the tilting rod and the handle paddle are bent so as to be buckled with each other.

[0022] Optionally, the third shift block and the fourth shift block are arranged on opposite sides of the lock tongue shift piece, and the third shift block and the fourth shift block can rotate relative to the lock tongue shift piece body.

[0023] Optionally, a circular through hole is provided at the location where the lock tongue pick and the square steel connecting seat are provided, so that the lock tongue pick can rotate independently;

[0024] The handle paddle, the first motor paddle and the square steel connecting seat are provided with square through holes, so that the handle paddle, the first motor paddle and the square steel connecting seat can move synchronously.

[0025] The handle-type smart door lock provided by the present invention has the following advantages:

[0026] 1. The present invention provides a handle-type smart door lock, comprising a shell, a driving motor, a lock tongue and a square steel connecting seat, the driving motor being suitable for driving the lock tongue to extend and retract through a gear set; the square steel connecting seat is suitable for connecting to a handle to control the extension and retraction of the lock tongue; the first motor paddle and a second motor paddle are further provided, the first motor paddle is sleeved on the square steel connecting seat and moves synchronously with the square steel connecting seat, the first motor paddle is provided with a paddle block; the second motor paddle is movably connected to the shell and is arranged on one side of the driving motor, the second motor paddle comprises a first paddle foot and a second paddle foot, the first paddle foot abuts against the paddle block, and the second paddle foot abuts against the driving motor; wherein, the square steel connecting seat is configured to rotate in an unlocking direction or a locking direction under the drive of the handle, and the first paddle foot is driven by the paddle block to drive the second paddle foot to rotate relative to the shell, so as to drive the driving motor to move until it is separated from the gear set.

[0027] This handle-type smart door lock has a first motor paddle and a second motor paddle. When the square steel connecting base rotates in the unlocking or locking direction driven by the handle, the first motor paddle and the square steel connecting base move synchronously. The paddle block on the first motor paddle pushes the first paddle pin, which drives the second paddle pin to rotate relative to the housing. Since the second paddle pin abuts the drive motor, it can push the drive motor until it disengages from the gear set. This avoids the need to overcome the motor's own resistance to complete the unlocking action when the handle is driven, which makes the unlocking operation more forceful and affects the user experience.

[0028] 2. The present invention provides a handle-type intelligent door lock, in which a handle paddle is mounted on a square steel connecting base and moves synchronously with the square steel connecting base. A tilting rod is hinged to the housing, with the left end of the tilting rod abutting the handle paddle, and the other end of the tilting rod abutting the fourth shifting block on the lock tongue paddle. When the square steel connecting base rotates in the unlocking direction, the handle paddle is driven by the square steel connecting base to push the tilting rod clockwise. The right end of the handle paddle pushes the fourth shifting block downward, which in turn pushes the lock tongue paddle clockwise relative to the square steel connecting base through the fourth shifting block. The third shifting block rotates counterclockwise under the drive of the lock tongue paddle, causing the third shifting block to move downward, driving the lock tongue through the groove below the lock tongue and into the interior of the lock body, thereby unlocking the door.

[0029] 3. This invention provides a handle-type intelligent door lock. The square steel connector is configured to rotate in the locking direction when driven by the handle, thereby driving the first motor paddle to rotate in the same direction. The right end of the first motor paddle then abuts against the underside of the lock tongue, pushing the lock tongue upward until it extends out of the housing, completing the locking process. Simultaneously, as the lock tongue moves upward, the lock tongue, through a groove on its underside, drives the third paddle block and the lock tongue paddle upward until they return to their original position. The lock tongue paddle, via the fourth paddle block, then drives the tilting lever and the handle paddle back to their original position.

[0030] 4. The present invention provides a handle-type smart door lock, in which the joints between the tilting rod and the handle paddle are bent so as to be interlocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 This is a schematic structural view of the handle-type smart door lock provided in an embodiment of the present invention when it is in a locked state;

[0033] Figure 2 This is a schematic structural view of a handle-type smart door lock provided in an embodiment of the present invention when it is in the unlocking process;

[0034] Figure 3 This is a schematic structural view of the handle-type smart door lock provided in an embodiment of the present invention when it is in an unlocked state;

[0035] Figure 4 This is a schematic structural view of a handle-type smart door lock provided in an embodiment of the present invention in an unlocked state with the handle returned to its original position;

[0036] Figure 5This is a schematic structural view of a handle-type smart door lock provided in an embodiment of the present invention when it is in the locking process;

[0037] Figure 6 This is a schematic structural view of the handle-type smart door lock provided in an embodiment of the present invention after it is locked;

[0038] Figure 7 This is a schematic diagram of the specific structure of the handle-type smart door lock provided in an embodiment of the present invention;

[0039] Figure 8 for Figure 7 Schematic diagram of the back structure of the middle structure;

[0040] Figure 9 for Figure 7 Exploded view of the structure;

[0041] Description of reference numerals:

[0042] 1- shell;

[0043] 2- drive motor;

[0044] 3-Lock tongue;

[0045] 4-square steel connecting seat;

[0046] 5-first motor paddle; 51-first shift block; 52-second shift block;

[0047] 6-second motor paddle; 61-first paddle pin; 62-second paddle pin;

[0048] 7-lock tongue pick; 71-third shift block; 72-fourth shift block;

[0049] 8-handle paddle;

[0050] 9-Tilt lever. DETAILED DESCRIPTION

[0051] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0052] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do 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, they cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0053] Example

[0054] This embodiment provides a handle-type smart door lock, including a shell 1, a drive motor 2, a lock tongue 3, a square steel connecting seat 4, a first motor paddle 5, a second motor paddle 6, a lock tongue paddle 7, a handle paddle 8 and a tilting rod 9.

[0055] Among them, the driving motor 2 drives the lock tongue 3 to retract and extend through a gear set, and the square steel connecting seat 4 is used to connect the handle to control the retraction and extension of the lock tongue 3. These two structures adopt existing technologies, which are not the content to be protected by the present invention, and their working principles will not be repeated here.

[0056] In this embodiment, the driving motor 2 is hinged to the housing 1, and a reset member such as a torsion spring can be provided between the driving motor 2 and the housing 1 so that the driving motor 2 can always be in a state of being ... Figure 1 Position, in which the drive motor 2 engages with the gear set on its right side.

[0057] In this embodiment, a through hole for placing the lock tongue 3 is provided on the upper side of the shell 1, and a groove is provided on the lower side of the lock tongue 3. During installation, the third shift block 71 on the lock tongue paddle 7 is slidably set inside the groove, so that the lock tongue paddle 7 can drive the lock tongue 3 into the interior of the shell 1, and at the same time, the lock tongue 3 can also move upward to drive the lock tongue paddle 7 to reset.

[0058] In this embodiment, the square steel connecting seat 4 and the housing 1 are movably arranged so that the square steel connecting seat 4 can rotate when driven by the handle.

[0059] In some alternative embodiments, such as Figures 7 to 9As shown, the square steel connecting base 4 is sequentially mounted with the first motor paddle 5, the bolt paddle 7, and the handle paddle 8 from top to bottom. A circular through-hole is provided where the bolt paddle 7 and the square steel connecting base 4 are mounted, allowing the bolt paddle 7 to rotate independently. Square through-holes are provided where the handle paddle 8, the first motor paddle 5, and the square steel connecting base 4 are mounted, allowing the handle paddle 8, the first motor paddle 5, and the square steel connecting base 4 to move synchronously. In other embodiments, the bolt paddle 7 may also be provided with other types of through-holes, as long as the bolt paddle 7 can move independently.

[0060] In this embodiment, the second motor paddle 6 is movably connected to the housing 1 and is disposed on one side of the drive motor 2. The first motor paddle 5 is provided with a paddle block, and the second motor paddle 6 includes a first paddle pin 61 and a second paddle pin 62. The first paddle pin 61 abuts the paddle block, and the second paddle pin 62 abuts the drive motor 2. During use, the first motor paddle 5 can be rotated, and the paddle block can then be used to paddle the first paddle pin 61, causing the second motor paddle 6 to rotate. This in turn causes the second paddle pin 62 to rotate along with the first paddle pin 61, thereby achieving rotation of the drive motor 2 relative to the housing 1 via the second paddle pin 62 until the drive motor 2 is separated from the gear train.

[0061] In the above embodiment, if Figures 7 to 9 As shown, the shift block includes a first shift block 51 and a second shift block 52. When the square steel connecting base 4 is returned to the normal position, the first shift block 51 and the second shift block 52 both abut against the first shift pin 61. In some alternative embodiments, the side of the first shift pin 61 that contacts the first and second shift blocks 51 and 52 is an arcuate surface, and the first and second shift blocks 51 and 52 slide on the arcuate surface to drive the second motor paddle 6 to rotate relative to the housing 1.

[0062] like Figures 1 to 3 As shown, Figure 1 This is a schematic diagram of the structure of the handle-type smart door lock when it is in the locked state. Figure 2 This is a schematic diagram of the structure of the handle-type smart door lock when it is in the unlocking process;

[0063] Figure 3 This is a schematic diagram of the structure of the handle type smart door lock when it is in the unlocked state. Figures 1 to 3 Detailed description is shown below.

[0064] When in use, use the handle to drive the square steel connecting seat 4 along the unlocking direction ( Figure 1 Since the first motor paddle 5 and the square steel connecting seat 4 move synchronously, the first motor paddle 5 will rotate in the unlocking direction at the same time. This process is Figure 2 As shown in Figure 2As shown, during the rotation of the first motor paddle 5 in the unlocking direction, the first paddle block 51 slides upward along the upper arc surface of the first paddle foot 61, thereby squeezing the left end of the second motor paddle 6. It can be understood that since the right end of the second motor paddle 6 is hinged to the housing 1, when the first paddle foot 61 at the left end of the second motor paddle 6 is pressed, the second paddle foot 62 at the left end of the second motor paddle 6 will move in the opposite direction in the unlocking direction ( Figure 1 The second pin 62 pushes the drive motor 2 downward, causing the drive motor 2 to rotate clockwise relative to the housing 1 until the drive motor 2 is separated from the gear set ( Figure 3 shown).

[0065] In this embodiment, if Figure 8 As shown, the handle paddle 8 is sleeved on the square steel connecting seat 4 and moves synchronously with the square steel connecting seat 4. The tilting rod 9 is hinged to the housing 1. The left end of the tilting rod 9 abuts against the handle paddle 8, and the other end of the tilting rod 9 abuts against the fourth dial block 72 on the lock tongue paddle 7. When the square steel connecting seat 4 moves in the unlocking direction ( Figure 8 When the handle is rotated in the counterclockwise direction, the handle paddle 8 is driven by the square steel connecting seat 4 to push the tilting rod 9 to rotate clockwise. The right end of the tilting rod 9 pushes the fourth shift block 72 downward, and then the fourth shift block 72 pushes the lock tongue paddle 7 to rotate clockwise relative to the square steel connecting seat 4. Figure 7 In the process, the third shift block 71 is driven by the lock tongue shift piece 7 along Figure 7 The lock is unlocked by rotating the third shift block 71 in the counterclockwise direction so as to move the third shift block 71 downwards and drive the lock tongue 3 to move downwards into the interior of the housing 1 through the groove below the lock tongue 3.

[0066] In some alternative embodiments, such as Figure 8 As shown, the joints between the tilting rod 9 and the handle paddle 8 are bent to engage with each other. The third and fourth paddle blocks 71 and 72 are disposed on opposite sides of the bolt paddle 7 and can rotate relative to the bolt paddle body.

[0067] Figure 4 This is a schematic diagram of the structure of the handle type smart door lock when the handle is in the unlocked state. When the handle is returned to the center, the square steel connecting seat 4 will be driven to return to the center synchronously, and then the first motor paddle 5 and the handle paddle 8 will be driven to return to the center synchronously. Figure 8 As shown in the abutment, when the handle paddle 8 is returned to the positive position ( Figure 8 (rotate clockwise in the middle), the handle paddle 8 is separated from the tilting rod 9, and the tilting rod 9 and the lock tongue paddle 7 are still in Figure 3 Medium state.

[0068] Figure 5 This is a schematic diagram of the structure of the handle-type smart door lock when it is in the locking process; Figure 6This is a schematic diagram of the structure of the handle type smart door lock after it is locked. Figure 5 As shown, the square steel connecting seat 4 is configured to rotate in the locking direction under the drive of the handle ( Figure 5 The first motor paddle 5 rotates in the same direction, and the right end of the first motor paddle 5 abuts against the lower side of the lock tongue 3 to push the lock tongue 3 up until it extends out of the housing 1, completing the locking (such as Figure 6 At the same time, when the lock tongue 3 moves upward, the lock tongue 3 drives the third shift block 71 and the lock tongue paddle 7 to move upward through the groove on its lower side until they return to their original positions, and the lock tongue paddle 7 drives the tilting rod 9 and the handle paddle 8 to return to their original positions through the fourth shift block 72.

[0069] Further, such as Figure 5 and Figure 6 As shown, in the first motor paddle 5 Figure 5 When the second motor paddle 6 is rotated in the counterclockwise direction, the second paddle block 52 slides downward along the arc surface on the upper side of the first paddle foot 61, thereby squeezing the left end of the second motor paddle 6. It can be understood that since the right end of the second motor paddle 6 is hinged to the housing 1, when the first paddle foot 61 on the left end of the second motor paddle 6 is pressed, the second paddle foot 62 on the left end of the second motor paddle 6 will slide along the arc surface on the upper side of the first paddle foot 61, thereby squeezing the left end of the second motor paddle 6. Figure 5 The second pin 62 is used to push the drive motor 2 downward, so that the drive motor 2 rotates clockwise relative to the housing 1 until the drive motor 2 is separated from the gear set ( Figure 6 shown).

[0070] The unlocking steps of the handle-type smart door lock provided in this embodiment are as follows:

[0071] like Figures 1 to 3 As shown, when in use, use the handle to drive the square steel connecting seat 4 along the unlocking direction ( Figure 1 Since the first motor paddle 5 and the square steel connecting seat 4 move synchronously, the first motor paddle 5 will rotate in the unlocking direction at the same time. This process is Figure 2 As shown in Figure 2 As shown, during the rotation of the first motor paddle 5 in the unlocking direction, the first paddle block 51 slides upward along the upper arc surface of the first paddle foot 61, thereby squeezing the left end of the second motor paddle 6. It can be understood that since the right end of the second motor paddle 6 is hinged to the housing 1, when the first paddle foot 61 at the left end of the second motor paddle 6 is pressed, the second paddle foot 62 at the left end of the second motor paddle 6 will move in the opposite direction in the unlocking direction ( Figure 1 The second pin 62 pushes the drive motor 2 downward, causing the drive motor 2 to rotate clockwise relative to the housing 1 until the drive motor 2 is separated from the gear set ( Figure 3 At the same time, the square steel connecting seat 4 is opened along the unlocking direction ( Figure 8When the handle is rotated in the counterclockwise direction, the handle paddle 8 is driven by the square steel connecting seat 4 to push the tilting rod 9 to rotate clockwise. The right end of the tilting rod 9 pushes the fourth dial block 72 downward, and then pushes the lock tongue paddle relative to the square steel connecting seat 4 to rotate clockwise through the fourth dial block 72. Figure 7 In the process, the third shift block 71 is driven by the lock tongue shift piece along Figure 7 The lock is then rotated counterclockwise, so that the third shift block 71 moves downward to drive the lock tongue 3 through the groove below the lock tongue 3 to move downward into the interior of the lock body, thereby unlocking the lock.

[0072] The locking steps are as follows: Figure 5 and Figure 6 As shown, the square steel connecting seat 4 is configured to rotate in the locking direction under the drive of the handle ( Figure 5 The first motor paddle 5 rotates in the same direction, and the right end of the first motor paddle 5 abuts against the lower side of the lock tongue 3 to push the lock tongue 3 up until it extends out of the housing 1, completing the locking (such as Figure 6 At the same time, when the lock tongue 3 moves upward, the lock tongue 3 drives the third shift block 71 and the lock tongue paddle 7 to move upward through the groove on its lower side until they return to their original position, and the lock tongue paddle drives the tilting rod 9 and the handle paddle 8 to return to their original position through the fourth shift block 72. Figure 5 When the second motor paddle 6 is rotated in the counterclockwise direction, the second paddle block 52 slides downward along the arc surface on the upper side of the first paddle foot 61, thereby squeezing the left end of the second motor paddle 6. It can be understood that since the right end of the second motor paddle 6 is hinged to the housing 1, when the first paddle foot 61 on the left end of the second motor paddle 6 is pressed, the second paddle foot 62 on the left end of the second motor paddle 6 will slide along the arc surface on the upper side of the first paddle foot 61, thereby squeezing the left end of the second motor paddle 6. Figure 5 The second pin 62 is used to push the drive motor 2 downward, so that the drive motor 2 rotates clockwise relative to the housing 1 until the drive motor 2 is separated from the gear set ( Figure 6 shown).

[0073] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A handle-type smart door lock, comprising a housing, a drive motor, a lock tongue, and a square steel connecting seat, wherein the drive motor is adapted to drive the lock tongue to extend and retract via a gear set; the square steel connecting seat is adapted to connect a handle to control the extension and retraction of the lock tongue, characterized in that: Also includes: a first motor paddle, which is sleeved on the square steel connecting seat and moves synchronously with the square steel connecting seat, and a paddle block is provided on the first motor paddle; a second motor paddle, movably connected to the housing and disposed on one side of the drive motor, the second motor paddle comprising a first paddle pin and a second paddle pin, the first paddle pin abutting against the paddle block, and the second paddle pin abutting against the drive motor; The square steel connecting seat is configured to rotate in an unlocking direction or a locking direction driven by the handle, and the first shifting foot is driven by the shifting block to drive the second shifting foot to rotate relative to the housing, thereby driving the drive motor to move until it is separated from the gear set; When the square steel connecting seat rotates in the locking direction, the first motor paddle rotates synchronously with the square steel connecting seat to push the lock tongue out of the housing; It also includes a lock tongue pick, which is sleeved on the square steel connecting seat, and the lock tongue pick is provided with a third pick block suitable for slidingly setting in the lock tongue groove; When the square steel connecting seat rotates in the unlocking direction, the lock tongue shift piece is driven by the square steel connecting seat to drive the third shift block to move toward the inside of the shell, so as to drive the lock tongue to retract into the shell; A handle paddle is sleeved on the square steel connecting seat and moves synchronously with the square steel connecting seat; a tilting rod hinged to the housing, one end of the tilting rod abutting against the handle paddle, and the other end of the tilting rod abutting against the fourth paddle block on the lock tongue paddle; When the square steel connecting seat rotates in the unlocking direction, the handle paddle is driven by the square steel connecting seat to push the tilting rod to rotate, and the third paddle is driven to move toward the inside of the shell through the fourth paddle and the lock tongue paddle to drive the lock tongue to retract into the shell.

2. The handle-type smart door lock according to claim 1, characterized in that: The shift block includes a first shift block and a second shift block; The square steel connecting seat is configured so that when the handle drives the square steel connecting seat to rotate in the unlocking direction, the first shifting block pushes the first shifting foot to drive the second shifting foot to rotate relative to the housing. The square steel connecting seat is configured so that when the handle drives the square steel connecting seat to rotate in the locking direction, the second shifting block pushes the first shifting foot to drive the second shifting foot to rotate relative to the housing.

3. The handle-type smart door lock according to claim 2, characterized in that: The first shifting foot has an arc surface on the side in contact with the first shifting block and the second shifting block. The first shifting block and the second shifting block slide on the arc surface to push the second motor shifting piece to rotate relative to the housing.

4. The handle-type smart door lock according to claim 1, characterized in that: When the square steel connecting seat rotates in the locking direction to push the lock tongue out of the housing, the lock tongue paddle is driven by the lock tongue to reset, and the lock tongue paddle drives the tilting rod and the handle paddle to reset via the fourth shift block.

5. The handle-type smart door lock according to claim 1, characterized in that: The joints between the tilting rod and the handle paddle are bent so as to be buckled with each other.

6. The handle-type smart door lock according to claim 1, characterized in that: The third shift block and the fourth shift block are arranged on opposite sides of the lock tongue shift piece, and the third shift block and the fourth shift block can rotate relative to the lock tongue shift piece body.

7. The handle-type smart door lock according to claim 1, characterized in that: A circular through hole is provided at the connection between the lock bolt pick and the square steel connecting seat, so that the lock bolt pick can rotate independently; The handle paddle, the first motor paddle and the square steel connecting seat are provided with square through holes, so that the handle paddle, the first motor paddle and the square steel connecting seat can move synchronously.

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