A gear-driven door lock automatic unlocking structure

Abstract

The present invention relates to the field of door locks, and provides a gear-driven door lock automatic unlocking structure. The technical scheme adopted is: a gear-driven door lock automatic unlocking structure, comprising a panel (1), a lock tongue (2) and a motor (3) are installed inside the panel (1), and a driving wheel (31) is installed on the rotating shaft of the motor (3); a toggle block (5) is provided inside the panel (1) for toggle the lock tongue (2) to extend or retract, a driven wheel (6) driven to rotate by the driving wheel (31) is provided on the axis of the toggle block (5), the driven wheel (6) is movably sleeved on the panel (1) and rotates independently relative to the toggle block (5); a driven wheel clutch tooth (63) for rotating the toggle block (5) is provided on the back of the gear of the driven wheel (6), and a toggle block clutch tooth (53) cooperating with the driven wheel clutch tooth (63) is provided on the toggle block (5).

Description

Technical Field

[0001] The invention relates to the field of door locks, and in particular to an automatic unlocking structure of a door lock driven by a gear. Background Art

[0002] At present, the structural design widely used in the market is that the motor drives the driving gear, which is then transmitted to the driven gear. The driven gear drives the toggle block through the clutch structure, which drives the lock tongue to slide, thereby locking and unlocking the door. At the same time, the door can be locked manually by turning the knob mechanically.

[0003] Existing structure: The fixed fulcrum of the driven gear is set on the toggle block, and the toggle block is fastened together with the manual knob with screws. This structure can easily cause the gear transmission to be not smooth and the motor to be stuck. Moreover, even if a clutch structure is provided between the driven gear and the toggle block, the fixed fulcrum of the driven gear still rests on the toggle block. When the clutch structure is separated, the driven gear can easily drive the toggle block to rotate by inertia, causing malfunction. Summary of the invention

[0004] The present invention provides a gear-driven door lock automatic unlocking structure, the purpose of which is to install a driven gear on a panel so that the fulcrum or limit position of the driven gear is separated from a toggle block, thereby avoiding friction between the driven gear and the toggle block, thereby avoiding the toggle block from rotating erroneously due to friction. The present invention is applicable to the field of door locks.

[0005] The technical solution adopted by the present invention is:

[0006] A gear-driven automatic unlocking structure for a door lock comprises a panel, a lock tongue and a motor are installed inside the panel, a driving wheel is installed on the rotating shaft of the motor; a toggle block for toggle the lock tongue to extend or retract is provided inside the panel, a driven wheel driven by the driving wheel to rotate is provided on the axial center of the toggle block, and the characteristic is that: the driven wheel is movably sleeved on the panel and rotates independently relative to the toggle block; a driven wheel clutch tooth for rotating the toggle block is provided on the back of the gear of the driven wheel, and a toggle block clutch tooth cooperating with the driven wheel clutch tooth is provided on the toggle block.

[0007] More preferably, a gear-driven door lock automatic unlocking structure is characterized in that: the shift block is provided with a transmission groove for accommodating the driven wheel, the driven wheel is sleeved in the transmission groove and the gear is exposed, and the shift block clutch tooth is located on the inner side of the groove wall of the transmission groove; the driven wheel clutch tooth is located in the transmission groove and rotates close to the inner side of the groove wall, and the driven wheel clutch tooth idles or rides on the shift block clutch tooth and pushes the shift block clutch tooth to rotate.

[0008] More preferably, a gear-driven automatic unlocking structure for a door lock is characterized in that: a manual knob is installed on the outer surface of the panel, the toggle block is fixedly connected to the inner side of the manual knob, and the toggle block rotates synchronously with the manual knob; the toggle block is provided with a knob connecting hole fixedly connected to the manual knob, and the manual knob is provided with a toggle block connecting hole fixedly connected to the toggle block, and the knob connecting hole corresponds to the hole position of the toggle block connecting hole; a screw passes through the knob connecting hole and is screwed into the toggle block connecting hole, and the toggle block and the manual knob are connected in series to form a tight whole.

[0009] More preferably, a gear-driven automatic unlocking structure for a door lock is characterized in that: a knob position for installing the manual knob is provided on the panel, and the knob position is a circular hole; a plate surface spanning the hole is provided on the knob position, and a driven wheel positioning pile is provided in the center of the plate surface; a driven wheel hollow shaft movably sleeved on the driven wheel positioning pile is provided in the center of the back side of the driven wheel gear; a driven wheel positioning fixing plate is mounted above the gear surface of the driven wheel, and the driven wheel positioning fixing plate is fixedly connected to the panel; a driven wheel positioning hole is provided on the driven wheel positioning fixing plate, and a positioning shaft movably inserted into the driven wheel positioning hole is provided in the center of the driven wheel gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0011] Figure 1 It is an overall view of the present invention;

[0012] Figure 2 It is a transmission structure diagram of the present invention;

[0013] Figure 3 It is a schematic diagram of the components of the present invention;

[0014] Figure 4 is a cross-sectional view of the present invention;

[0015] Figure 5 It is an exploded view of the present invention.

[0016] The numbers in the figure are as follows:

[0017] 1- panel, 11- lock tongue positioning slot, 12- tongue hole, 13- motor fixing slot, 14- knob position, 141- driven wheel positioning column;

[0018] 2-lock tongue, 21-tongue body, 22-lock tongue slider, 221-limiting hole, 222-retraction block, 223-pull-out block 223;

[0019] 3-motor, 31-driving wheel;

[0020] 4-manual knob, 41-block connection hole;

[0021] 5-shift block, 51-shift handle, 52-transmission slot, 53-shift block clutch tooth, 54-knob connection hole;

[0022] 6-driven wheel, 61-positioning shaft;

[0023] 7-driven wheel positioning fixing plate, 71-driven wheel positioning hole. DETAILED DESCRIPTION

[0024] The present invention provides a gear-driven door lock automatic unlocking structure, which is applicable to the door lock field. The present invention can be implemented in the following ways:

[0025] like Figure 1-5 As shown: a gear-driven door lock automatic unlocking structure, including a panel 1, wherein a motor fixing groove 13 and a lock tongue positioning groove 11 are provided inside the panel 1, a lock tongue 2 is installed on the lock tongue positioning groove 11, and a vertical wall for controlling the displacement direction of the lock tongue 2 is provided on the lock tongue positioning groove 11; a tongue hole 12 for the lock tongue 2 to extend or retract is provided on the side of the lock tongue positioning groove 11; the lock tongue 2 consists of a tongue body 21 and a lock tongue slider 22, the lock tongue slider 22 always moves inside the panel 1, and the tongue body 21 extends outward through the tongue hole 12; a strip-shaped limiting hole 221 is provided in the middle of the lock tongue slider 22, the limiting hole 221 is sleeved on the vertical wall of the lock tongue positioning groove 11 and moves parallel to each other under the limiting action of the vertical wall; a push-out block 223 and a retraction block 222 are provided at intervals on the side of the lock tongue slider 22.

[0026] A motor 3 is installed on the motor fixing groove 13, and the motor 3 is fixed in the motor fixing groove 13 by a motor pressing block 32; a driving wheel 31 is installed on the rotating shaft of the motor 3; a toggle block 5 for extending or retracting the toggle lock tongue 2 is provided inside the panel 1, and a driven wheel 6 driven by the driving wheel 31 to rotate is provided on the axial position of the toggle block 5; the driven wheel 6 is movably sleeved on the panel 1 and rotates independently relative to the toggle block 5; a driven wheel clutch tooth 63 for rotating the toggle block 5 is provided on the back of the gear of the driven wheel 6, and a toggle block clutch tooth 53 cooperating with the driven wheel clutch tooth 63 is provided on the toggle block 5.

[0027] The toggle block 5 is provided with a transmission groove 52 for accommodating the driven wheel 6, the driven wheel 6 is sleeved in the transmission groove 52 with the gear exposed, the toggle block clutch tooth 53 is located on the inner side of the groove wall of the transmission groove 52; the driven wheel clutch tooth 63 is located in the transmission groove 52 and rotates and moves close to the inner side of the groove wall, the driven wheel clutch tooth 63 idles or rides on the toggle block clutch tooth 53 and pushes the toggle block clutch tooth 53 to rotate; a toggle hand 51 extends from the outer side of the surface of the toggle block 5, and the toggle hand 51 toggle the lock tongue 2 to extend or retract.

[0028] Specifically, the dial hand 51 rotates inward to push the retraction block 222, so that the lock tongue slider 22 slides inward, driving the tongue body 21 to retract; the dial hand 51 rotates outward to push the extension block 223, so that the lock tongue slider 22 slides outward, driving the lock tongue 2 to extend outward.

[0029] A manual knob 4 is installed on the outer surface of the panel 1, and the toggle block 5 is fixedly connected to the inner side of the manual knob 4, and the toggle block 5 rotates synchronously with the manual knob 4; the toggle block 5 is provided with a knob connecting hole 54 fixedly connected to the manual knob 4, and the manual knob 4 is provided with a toggle block connecting hole 41 fixedly connected to the toggle block 5, and the knob connecting hole 54 corresponds to the hole position of the toggle block connecting hole 41; a screw passes through the knob connecting hole 54 and is screwed into the toggle block connecting hole 41, and the toggle block 5 and the manual knob 4 are connected in series to form a tight whole.

[0030] The panel 1 is provided with a knob position 14 for installing the manual knob 4, and the knob position 14 is a circular hole; a plate surface spanning the hole is provided on the knob position 14, and a driven wheel positioning pile 141 is provided at the center of the plate surface; a driven wheel hollow shaft 62 movably sleeved on the driven wheel positioning pile 141 is provided at the center of the back side of the gear of the driven wheel 6; a driven wheel positioning fixing plate 7 is mounted above the gear surface of the driven wheel 6, and the driven wheel positioning fixing plate 7 is fixedly connected to the panel 1; a driven wheel positioning hole 71 is provided on the driven wheel positioning fixing plate 7, and a positioning shaft 61 movably inserted into the driven wheel positioning hole 71 is provided at the center of the gear of the driven wheel 6.

[0031] In summary, through this solution, the upper and lower connecting ends of the driven wheel 6, namely the positioning shaft 61 and the driven wheel hollow shaft 62, are both connected to the panel 1, the driven wheel 6 is separated from the shift block 5, and only the driven wheel clutch teeth 63 and the shift block clutch teeth 53 are in contact and subjected to force, while excess friction in other parts is avoided or reduced, thereby greatly reducing the risk of the inertial movement of the driven wheel 6 bringing friction to the shift block 5, thereby reducing the possibility of malfunction of the shift block 5.

Claims

1. A gear-driven door lock automatic unlocking structure, comprising a panel (1), a lock tongue (2) and a motor (3) being mounted inside the panel (1), a driving wheel (31) being mounted on the rotating shaft of the motor (3); a toggle block (5) for toggle the lock tongue (2) being disposed inside the panel (1), Its characteristics are: A driven wheel (6) driven to rotate by the driving wheel (31) is provided at the axis center of the toggle block (5); the driven wheel (6) is movably sleeved on the panel (1) and rotates independently relative to the toggle block (5); a driven wheel clutch tooth (63) for latching the toggle block (5) is provided on the back of the gear of the driven wheel (6); a toggle block clutch tooth (53) cooperating with the driven wheel clutch tooth (63) is provided on the toggle block (5); the toggle block (5) is provided with a transmission groove (52) for accommodating the driven wheel (6); the driven wheel (6) is sleeved in the transmission groove (52) with the gear exposed, and the toggle block clutch tooth (53) is located on the inner side of the groove wall of the transmission groove (52); the driven wheel clutch tooth (63) is located in the transmission groove (52) and rotates close to the inner side of the groove wall, and the driven wheel clutch tooth (63) rotates idly or latches on the toggle block. The manual knob (4) is mounted on the clutch tooth (53) and drives the shifting block clutch tooth (53) to rotate; the panel (1) is provided with a knob position (14) for mounting a manual knob (4), the knob position (14) being a circular hole; a plate surface spanning the hole is provided on the knob position (14), and a driven wheel positioning pile (141) is provided at the center of the plate surface; a driven wheel hollow shaft (62) movably sleeved on the driven wheel positioning pile (141) is provided at the center of the back side of the gear of the driven wheel (6); a driven wheel positioning fixing plate (7) is mounted above the gear surface of the driven wheel (6), and the driven wheel positioning fixing plate (7) is fixedly connected to the panel (1); a driven wheel positioning hole (71) is provided on the driven wheel positioning fixing plate (7), and a positioning shaft (61) movably inserted into the driven wheel positioning hole (71) is provided at the center of the gear of the driven wheel (6).

2. The gear-driven door lock automatic unlocking structure as claimed in claim 1, Its characteristics are: A manual knob (4) is mounted on the outer surface of the panel (1); the toggle block (5) is fixedly connected to the inner side of the manual knob (4); the toggle block (5) rotates synchronously with the manual knob (4); the toggle block (5) is provided with a knob connection hole (54) fixedly connected to the manual knob (4); the manual knob (4) is provided with a toggle block connection hole (41) fixedly connected to the toggle block (5); the knob connection hole (54) corresponds to the hole position of the toggle block connection hole (41); a screw passes through the knob connection hole (54) and is screwed into the toggle block connection hole (41); the toggle block (5) and the manual knob (4) are connected in series to form a tight whole.

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