An electronic lock body

Abstract

The present invention relates to an electronic lock body, which comprises a square tongue assembly, a square tongue transmission device, a motor assembly and a lock core. The lock core is connected to the square tongue assembly. The square tongue transmission device comprises a pull rod and a motor gear, and the motor gear is provided with an arc-shaped groove; the pull rod has a pull rod protrusion; the motor gear is driven by the motor assembly, and two end portions of the arc-shaped groove respectively act on the pull rod protrusion to make the square tongue extend out of the lock body or retract into the lock body; after the square tongue extends out of the lock body or retracts into the lock body, the motor gear rotates to the reset position. During the process that the pick of the lock core moves the square tongue assembly to make the square tongue extend out of the lock body or retract into the lock body, the pull rod protrusion slides along the arc-shaped groove. The advantage of the present invention is that the pull rod protrusion slides along the arc-shaped groove without touching the two end portions of the arc-shaped groove, so that during the process of mechanical unlocking through the lock core, the pull rod will not drive the motor gear but idles relative to the motor gear, and the unlocking or locking is very labor-saving.

Description

Technical Field

[0001] The present invention relates to an electronic lock body. Background Art

[0002] An electronic lock includes a square tongue assembly, a square tongue transmission device, a motor assembly, a PCB board and a lock body control module. The PCB board is connected to the lock body control module, and the square tongue transmission device is connected to the square tongue assembly and the motor assembly. The user drives the motor assembly to act on the square tongue transmission device by sending a signal to the lock body control module, so that the square tongue of the square tongue assembly extends or retracts into the lock body to achieve the purpose of locking or unlocking. In order to achieve the purpose of mechanical unlocking, the electronic lock is generally also equipped with a mechanical unlocking device to achieve the purpose of mechanical unlocking through a key. However, after the existing electronic lock is unlocked, the square tongue transmission device is still in a linked state with the square tongue assembly. At this time, if a key is used for mechanical unlocking, the rotation of the key needs to drive the square tongue transmission device to rotate to achieve the extension of the square tongue and locking. The entire locking process requires a lot of force. Therefore, there is a need for improvement in the existing structure. Summary of the Invention

[0003] The purpose of the present invention is to provide a lock body that can save effort when mechanically unlocking or locking.

[0004] To achieve the above purpose, the present invention adopts the following technical solutions:

[0005] An electronic lock body includes a square tongue assembly, a square tongue transmission device, a motor assembly and a lock core. The lock core is connected to the square tongue assembly. The square tongue transmission device includes a pull rod and a motor gear rotatably mounted on the same first pivot shaft. The motor gear has an arc-shaped groove extending in an arc with the first pivot shaft as the central axis; the pull rod has a pull rod protrusion that falls into the arc-shaped groove and can slide along the arc-shaped groove when rotating; the motor gear is driven by the motor assembly to rotate forward or backward. The forward or backward rotation of the motor gear causes the two end portions of the arc-shaped groove to act on the pull rod protrusion respectively, so that the pull rod rotates forward or backward correspondingly. The forward or backward rotation of the pull rod drives the square tongue assembly to make the square tongue extend out of the lock body or retract into the lock body; after the square tongue extends out of the lock body or retracts into the lock body, the motor gear rotates to a reset position under the drive of the motor assembly. During the process that the pick of the lock core drives the square tongue assembly to make the square tongue extend out of the lock body or retract into the lock body, the pull rod protrusion slides along the arc-shaped groove.

[0006] The advantage of the present invention is that after the square tongue extends out of the lock body or retracts into the lock body, the motor gear rotates to a reset position under the drive of the motor assembly. During the process that the pick of the lock core drives the square tongue assembly to make the square tongue extend out of the lock body or retract into the lock body, the pull rod protrusion slides along the arc-shaped groove, and the pull rod protrusion slides along the arc-shaped groove without touching the two end portions of the arc-shaped groove. Therefore, during the process of mechanical unlocking through the lock core, the pull rod does not drive the motor gear but idles relative to the motor gear, and unlocking or locking is very labor-saving. Brief Description of the Drawings

[0007] Figure 1 is a three - dimensional state structure diagram of an electronic lock body in an embodiment;

[0008] Figure 2 is an exploded three - dimensional state structure diagram of an electronic lock body in an embodiment;

[0009] Figure 3 is an exploded three - dimensional state structure diagram of an electronic lock body in an embodiment;

[0010] Figure 4 is an exploded three - dimensional state structure diagram of an electronic lock body from another perspective in an embodiment;

[0011] Figure 5 is a three - dimensional state structure diagram of the assembly of the square tongue component, square tongue transmission device and motor component in an embodiment;

[0012] Figure 6 is an exploded three - dimensional state structure diagram of the square tongue component, square tongue transmission device and motor component in an embodiment;

[0013] Figure 7 is a three - dimensional state structure diagram of the assembly of the square tongue component, square tongue transmission device and motor component from another perspective in an embodiment;

[0014] Figure 8 is an exploded three - dimensional state structure diagram of the square tongue component, square tongue transmission device and motor component from another perspective in an embodiment;

[0015] Figure 9 is a three - dimensional state structure diagram of the pull rod in an embodiment;

[0016] Figure 10 is a three - dimensional state structure diagram of the pull rod from another perspective in an embodiment;

[0017] Figure 11 is a three - dimensional state structure diagram of the oblique tongue limiting piece in an embodiment;

[0018] Figure 12 is a three - dimensional state structure diagram of the oblique tongue limiting piece from another perspective in an embodiment;

[0019] Figure 13 is a three - dimensional state structure diagram of the assembly of the square tongue transmission device and the handle component in an embodiment;

[0020] Figure 14 is an exploded three - dimensional state structure diagram of the square tongue transmission device and the handle component in an embodiment;

[0021] Figure 15It is a front view of an electronic lock body in the embodiment (the upper cover of the lock housing is omitted, and the motor gear is in the reset position);

[0022] Figures 16 to 20 1. Each cross-sectional view of an electronic lock body in the embodiment (when the lock body is locked);

[0023] Figures 21 to 26 1 is a cross-sectional view of an electronic lock body in the embodiment (when the lock body is unlocked);

[0024] Figure 27 It is a cross-sectional view of an electronic lock body in the embodiment (the motor gear is in the reset position).

[0025] Figure Number:

[0026] 101, lock housing; 102, lock core; 103, first pivot axis; 104, second pivot axis;

[0027] 1. PCB board; 11. First micro switch; 12. Second micro switch; 13. Third micro switch; 14. Fourth micro switch; 15. Fifth micro switch;

[0028] 2. tongue assembly; 21. first contact portion; 22. trigger portion;

[0029] 3. Motor components;

[0030] 4. Oblique tongue assembly; 41. Fifth contact portion;

[0031] 5. triangular tongue assembly; 51. second contact portion;

[0032] 61, pull rod; 611, pull rod protrusion; 612, upper pull rod tooth; 613, lower pull rod tooth;

[0033] 62, motor gear; 621, arc groove; 622, third contact portion; 623, pull block;

[0034] 7. Oblique tongue limiter; 71. Fourth contact portion;

[0035] 81, mechanical gear; 811, trigger head; 82, reversing gear; 83, contact piece; 831, contact column;

[0036] 91. Base; 911. Protruding rib; 92. Forward pull piece; 921. Forward groove; 922. Forward tooth; 93. Reverse pull piece; 931. Reverse groove; 932. Reverse tooth; 94. Follower piece; 941. Follower tooth; 942. Follower protrusion; 95. Upper cover piece; 96. Lower cover piece; 97. Torsion spring. DETAILED DESCRIPTION

[0037] As attached Figure 1 To AttachmentFigure 4 As shown, an electronic lock body includes a lock shell 101, a PCB board 1, a lock body control module, a square tongue assembly 2, a square tongue transmission device, a motor assembly 3, a lock core 102, an oblique tongue assembly 4 and a triangular tongue assembly 5. The square tongue transmission device acts on the square tongue assembly 2 to make the square tongue extend or retract into the lock body (or the lock shell 101) to achieve the locking and unlocking functions of the lock body. The lock core 102 is connected to the square tongue assembly 2.

[0038] As attached Figure 5 To Attachment Figure 8 As shown, the tongue transmission device includes a pull rod 61 and a motor gear 62 rotatably mounted on the same first pivot shaft 103, and the motor gear 62 has an arc groove 621 extending in an arc shape with the first pivot shaft 103 as the central axis; Figure 9 and attached Figure 10 As shown, the pull rod 61 has a pull rod protrusion 611 that falls into the arc groove 621 and can slide along the arc groove 621 when rotating; the motor gear 62 is driven by the motor assembly 3 and can rotate forward (as shown in the attached Figure 15 To Attachment Figure 25 Clockwise direction as shown, the same below) or reverse direction (as shown in the attached Figure 15 To Attachment Figure 25 The forward or reverse rotation of the motor gear 62 causes the two ends of the arc groove 621 to act on the lever protrusion 611 respectively, and the lever 61 is correspondingly rotated forward or reversed. The forward or reverse rotation of the lever 61 pulls the square tongue component 2 to extend the square tongue out of the lock body or retract it into the lock body; after the square tongue is extended out of the lock body or retracted into the lock body, the motor gear 62 is driven by the motor component 3 to rotate to a reset position (as shown in the figure). Figure 15 or attached Figure 27 As shown in the figure, when the lock cylinder 102 pulls out the square tongue assembly 2 to make the square tongue extend out of the lock body or retract into the lock body, the pull rod protrusion 611 slides along the arc groove 621 without touching the two ends of the arc groove 621. Therefore, in the process of mechanical unlocking by the lock cylinder 102, the pull rod 61 will not drive the motor gear 62 but only idle relative to the motor gear 62, which saves a lot of effort to unlock or lock.

[0039] The lock body also includes a first micro switch 11 and a second micro switch 12 mounted on the PCB board 1. When the square tongue extends out of the lock body or retracts into the lock body, the first micro switch 11 and the second micro switch 12 are respectively triggered to generate signals. The lock body control module receives the generated signals and sends instructions to the motor assembly 3 according to the signal content. The motor assembly 3 drives to make a forward or reverse action, thereby realizing electronic unlocking (such as the attached Figure 21 To Attachment Figure 26 as shown) and locked (as shown Figure 16 To Attachment Figure 20 shown).

[0040] It should be noted that the first micro switch 11 and the second micro switch 12 may be other inductive switches, such as photoelectric switches, etc., the purpose of which is to detect whether the relevant components are in place.

[0041] Specifically, the square tongue assembly 2 is provided with a first contact portion 21, and when the square tongue is extended out of the lock body, the first contact portion 21 touches the first micro switch 11. The triangular tongue assembly 5 is provided with a second contact portion 51, and when the triangular tongue of the triangular tongue assembly 5 is retracted into the lock body, the second contact portion 51 touches the second micro switch 12.

[0042] A third contact portion 622 is provided on the motor gear 62, and the lock body also includes a third micro switch 13 installed on the PCB board 1. When the motor gear 62 rotates to the reset position, the third contact portion 622 touches the third micro switch 13 to generate a signal. The lock body control module receives the signal and sends an instruction to the motor assembly 3 according to the signal content, and the motor assembly 3 stops moving.

[0043] The lock body also includes a latch stopper 7, as shown in the attached Figure 11 and attached Figure 12 As shown, the latch bolt stopper 7 is kept in a state of preventing the latch bolt of the latch bolt assembly 4 from being retracted into the lock body under the action of a reset spring; a pulling block 623 is provided on the motor gear 62, and when the motor gear 62 acts on the pull rod 61 to reversely pull the square bolt assembly 2 to retract the square bolt into the lock body, the pulling block 623 acts on the latch bolt stopper 7 to overcome the action of the reset spring and allow the latch bolt of the latch bolt assembly 4 to be retracted into the lock body.

[0044] The lock body also includes a fourth micro switch 14 installed on the PCB board 1 and connected to the lock body control module. The fourth contact portion 71 is provided on the oblique tongue limiter 7. The pull block 623 acts on the oblique tongue limiter 7 (as shown in the attached Figure 18 When the fourth contact portion 71 touches the fourth micro switch 14, the fourth contact portion 71 moves to the position indicated by the label 73 in the figure to overcome the effect of the reset spring.

[0045] The lock body also includes a fifth micro switch 15 installed on the PCB board 1 and connected to the lock body control module. A fifth contact is provided on the latch bolt assembly 4. When the latch bolt of the latch bolt assembly 4 is retracted into the lock body, the fifth contact touches the fifth micro switch 15.

[0046] The lock body also includes a square tongue trigger device, which includes a mechanical gear 81 installed on the second pivot shaft 104, a straight tooth 72 meshing with the mechanical gear 81 is provided on the oblique tongue limiting plate 7, the mechanical gear 81 is provided with a trigger head 811, and a trigger part 22 is provided on the square tongue assembly 2. When the lock core 102 pulls out the square tongue assembly 2 to retract the square tongue into the lock body, the trigger part 22 acts on the trigger head 811 to rotate the mechanical gear 81, and the mechanical gear 81 and the straight tooth 72 on the oblique tongue limiting plate 7 are meshed for transmission. The oblique tongue limiting plate 7 overcomes the action of the reset spring and allows the oblique tongue of the oblique tongue assembly 4 to retract into the lock body.

[0047] The lock body can also realize the function of unlocking by lifting or pressing the handle, and the specific structure is as follows.

[0048] The lock body that can be lifted up and pressed down to unlock comprises a handle assembly, which comprises a handle, a square steel and a base 91 rotatably mounted on a lock housing 101, wherein the base 91 and the handle are connected via the square steel.

[0049] As attached Figure 13 and attached Figure 14 As shown, the outer wall of the base 91 is provided with a convex rib 911 extending along the axial direction of the base 91; the lock body also includes a corresponding forward pull piece 92 and a reverse pull piece 93, the forward pull piece 92 and the reverse pull piece 93 are correspondingly provided with a forward groove 921 and a reverse groove 931 extending in an arc shape with the rotation axis of the base 91 as the central axis, the forward pull piece 92 and the reverse pull piece 93 are correspondingly provided with a forward tooth 922 and a reverse tooth 932, the forward pull piece 92 and the reverse pull piece 93 are rotatably sleeved on the base 91 and the convex rib 911 passes through the forward groove 921 and the reverse groove 931 at the same time; the pull rod 61 rotatably mounted on the first pivot shaft 103 has an upper pull rod tooth 6 12 and the lower pull rod teeth 613; the forward teeth 922 of the forward pull piece 92 are meshed and connected with the lower pull rod teeth 613, and the reverse teeth 932 of the reverse pull piece 93 are meshed and connected with the upper pull rod teeth 612 through a reversing gear 82; when the base 91 rotates forward, the convex rib 911 contacts one end of the forward groove 921 and causes the forward pull piece 92 to rotate forwardly while the reverse pull piece 93 is stationary, the pull rod 61 is reversed, and the square tongue is retracted into the lock body; when the base 91 rotates reversely, the convex rib 911 contacts one end of the reverse groove 931 and causes the reverse pull piece 93 to rotate reversely while the forward pull piece 92 is stationary, the reversing gear 82 rotates forward, the pull rod 61 is reversed, and the square tongue is retracted into the lock body. Therefore, no matter whether the handle is lifted or pressed down, the square tongue is retracted into the lock body, thereby achieving the purpose of unlocking the lock by lifting or pressing the handle.

[0050] The lock body further includes an oblique tongue assembly 4 and an oblique tongue limiting piece 7. Under the action of a return spring, the oblique tongue limiting piece 7 maintains a state of preventing the oblique tongue of the oblique tongue assembly 4 from retracting into the lock body; a driven piece 94 that follows the base 91 is sleeved on the base 91, and the driven piece 94 is provided with a driven tooth 941; a contact piece 83 that meshes with the driven tooth 941 is further installed on the lock shell 101, and the contact piece 83 is provided with a contact post 831; when the base 91 rotates forward, the driven piece 94 rotates forward, and the contact post 831 acts on the oblique tongue limiting piece 7 (such as the position indicated by the reference numeral 75 in the attachment Figure 18 ) to overcome the action of the return spring and allow the oblique tongue of the oblique tongue assembly 4 to retract into the lock body.

[0051] The driven piece 94 is provided with a driven convex block 942; when the base 91 rotates in the reverse direction, the driven piece 94 rotates in the reverse direction, and the driven convex block 942 acts on the oblique tongue limiting piece 7 (such as the position indicated by the reference numeral 74 in the attachment Figure 18 ) to overcome the action of the return spring and allow the oblique tongue of the oblique tongue assembly 4 to retract into the lock body.

[0052] The handle assembly further has a base 91 reset device. The base 91 reset device includes an upper cover piece 95, a lower cover piece 96 and a torsion spring 97. The upper cover piece 95 and the lower cover piece 96 are sleeved on the base 91 and follow the base 91. The lower cover piece 96 has a first torsion post, and a second torsion post is provided on the lock shell 101. The torsion spring 97 is sleeved on the base 91 and is located between the upper cover piece 95 and the lower cover piece 96. One torsion leg of the torsion spring 97 abuts against the first torsion post and the other torsion leg abuts against the second torsion post, thereby ensuring that the handle can be reset after being lifted or pressed down.

Claims

1. An electronic lock body, comprising a square tongue assembly, a square tongue transmission device, a motor assembly and a lock core, the lock core is connected to the square tongue assembly, Characterized in that, The square tongue transmission device includes a pull rod and a motor gear rotatably mounted on the same first pivot shaft. The motor gear has an arc-shaped groove extending in an arc with the first pivot shaft as the central axis; the pull rod has a pull rod protrusion that falls into the arc-shaped groove and can slide along the arc-shaped groove during rotation; the motor gear is driven by the motor assembly to rotate forward or backward. The forward or backward rotation of the motor gear causes the two end portions of the arc-shaped groove to act on the pull rod protrusion respectively, so as to correspondingly make the pull rod rotate forward or backward. The forward or backward rotation of the pull rod drives the square tongue assembly to make the square tongue extend out of the lock body or retract into the lock body; after the square tongue extends out of the lock body or retracts into the lock body, the motor gear rotates to a reset position under the drive of the motor assembly. During the process that the pick of the lock core drives the square tongue assembly to make the square tongue extend out of the lock body or retract into the lock body, the pull rod protrusion slides along the arc-shaped groove. The electronic lock body further includes a square tongue trigger device. The square tongue trigger device includes a mechanical gear mounted on a second pivot shaft. A straight tooth meshingly connected to the mechanical gear is provided on the oblique tongue limiting piece. The mechanical gear is provided with a trigger head. A trigger portion is provided on the square tongue assembly. When the pick of the lock core drives the square tongue assembly to make the square tongue retract into the lock body, the trigger portion acts on the trigger head to make the mechanical gear rotate. The mechanical gear and the straight tooth on the oblique tongue limiting piece are meshingly driven, and the oblique tongue limiting piece allows the oblique tongue of the oblique tongue assembly to retract into the lock body under the action of overcoming the reset spring.

2. The electronic lock body according to claim 1, Characterized in that, The electronic lock body further includes a first microswitch, a second microswitch and a lock body control module mounted on the PCB board. When the square tongue extends out of the lock body or retracts into the lock body, the first microswitch and the second microswitch are respectively touched to generate signals. The lock body control module receives the generated signals and sends instructions to the motor assembly according to the signal content, and the motor assembly drives to make a forward or backward rotation action.

3. The electronic lock body according to claim 2, Characterized in that, A first contact portion is provided on the square tongue assembly. When the square tongue extends out of the lock body, the first contact portion touches the first microswitch.

4. The electronic lock body according to claim 2, Characterized in that, The lock body further includes a triangular tongue assembly. A second contact portion is provided on the triangular tongue assembly. When the triangular tongue of the triangular tongue assembly retracts into the lock body, the second contact portion touches the second microswitch.

5. The electronic lock body according to claim 2, Characterized in that, A third contact portion is provided on the motor gear. The lock body further includes a third microswitch mounted on the PCB board. When the motor gear rotates to the reset position, the third contact portion touches the third microswitch to generate a signal. The lock body control module receives the signal and sends instructions to the motor assembly according to the signal content, and the motor assembly stops operating.

6. The electronic lock body according to claim 2, Characterized in that, The electronic lock body also includes an inclined tongue assembly and an inclined tongue limiting plate. Under the action of a reset spring, the inclined tongue limiting plate keeps the inclined tongue of the inclined tongue assembly from being retracted into the lock body. A pulling block is arranged on the motor gear. When the motor gear acts on the pull rod to reversely pull the square tongue assembly to retract the square tongue into the lock body, the pulling block acts on the inclined tongue limiting plate to overcome the action of the reset spring and allow the inclined tongue of the inclined tongue assembly to be retracted into the lock body.

7. An electronic lock body according to claim 6, It is characterized in that The electronic lock body also includes a fourth micro switch installed on the PCB board and connected to the lock body control module. A fourth contact portion is provided on the oblique tongue limit plate. When the pull block acts on the oblique tongue limit plate to overcome the action of the reset spring, the fourth contact portion touches the fourth micro switch.

8. An electronic lock body according to claim 7, It is characterized in that The electronic lock body also includes a fifth micro switch installed on the PCB board and connected to the lock body control module. A fifth contact is provided on the oblique tongue assembly. When the oblique tongue of the oblique tongue assembly is retracted into the lock body, the fifth contact touches the fifth micro switch.

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