CN213015845U - Driving mechanism of intelligent door lock cover and intelligent door lock - Google Patents

Abstract

The utility model discloses a drive mechanism and intelligent lock of intelligence door locking closure, drive mechanism include base, sliding mounting seat and be used for driving the sliding mounting seat relative to the base gliding drive assembly, drive assembly includes the motor that has output gear, reduction gears and rack, the rack is fixed on the base; the reduction mechanism includes a first coaxial gear set, a second coaxial gear set, a third coaxial gear set, and a fourth coaxial gear set. According to the utility model discloses an actuating mechanism of intelligence door locking closure, it has can return the starting point and the convenient manually operation's in outage rear actuating mechanism with the help of slidable mounting seat and move subassembly self gravity.

Description

Driving mechanism of intelligent door lock cover and intelligent door lock

Technical Field

The utility model belongs to intelligence lock lid field particularly, the utility model relates to an actuating mechanism of intelligence lock lid.

Background

At present, in an intelligent door lock system, a fingerprint area or a touch area can be protected by a sliding cover, so that the use of the intelligent door lock is prevented from being influenced by dust falling. At present, the sliding cover in the intelligent door lock cover is required to be arranged on a driving mechanism so as to realize the function of the intelligent door lock cover. The driving mechanism is limited by the space requirement of the door lock cover, cannot be driven by a large motor, and needs a gear to reduce the output rotating speed of the motor and increase the output torque.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a technical problem be: provided is a driving mechanism of an intelligent door lock cover, which facilitates a manual operation after an abnormal power failure.

Technical scheme for solving technical problem

In view of the technical problem, the utility model provides a driving mechanism of intelligent door lock cover, wherein, including base, sliding installation seat and be used for driving the sliding installation seat relative to the drive assembly of base slip, drive assembly includes the motor that has output gear, reduction gears and rack, the rack is fixed on the base; the reduction mechanism comprises a first coaxial gear set, a second coaxial gear set, a third coaxial gear set and a fourth coaxial gear set, the first coaxial gear set comprises a first gear and a second gear, the second coaxial gear set comprises a third gear and a fourth gear, the third coaxial gear set comprises a fifth gear and a sixth gear, the fourth coaxial gear set comprises a seventh gear and an eighth gear, the output gear is meshed with the first gear, the second gear is meshed with the third gear, the fourth gear is meshed with the fifth gear, the sixth gear is meshed with the seventh gear, and the eighth gear is meshed with the rack.

As a further improvement of the above technical solution, the motor is a brushless motor.

As a further improvement of the technical scheme, a left slide rail and a right slide rail are respectively arranged on two sides of the base, and a left slide groove matched with the left slide rail and a right slide groove matched with the right slide rail are respectively arranged on the sliding installation seat.

As a further improvement of the above technical solution, a reduction ratio of the meshing of the output gear and the first gear is 1 to 3, a reduction ratio of the meshing of the second gear and the third gear is 2 to 4, a reduction ratio of the meshing of the fourth gear and the fifth gear is 2 to 4, and a reduction ratio of the meshing of the sixth gear and the seventh gear is 3 to 5.

As a further improvement of the technical scheme, the top of the base is provided with a limiting groove, a limiting component and a compression spring which always applies acting force to the limiting component in a locking reverse direction, and the inner side of the sliding installation seat is provided with a protruding part matched with the limiting groove.

As a further improvement of the above technical solution, the first gear mesh is located inside the second gear, the third gear is located outside the fourth gear, the fifth gear is located inside the sixth gear, and the seventh gear is located outside the eighth gear.

Technical effects

Implement the utility model discloses an effect that obtains includes: according to the utility model discloses an actuating mechanism of intelligence door locking closure, it has the convenient manual operation after the outage, and can with the help of slidable mounting seat and move subassembly self gravity and fall back the starting point.

Drawings

FIG. 1 is a front view of a drive mechanism for an intelligent door latch cover according to an embodiment of the present invention;

FIG. 2 is a three-dimensional schematic view of the drive mechanism of the smart door latch cover of FIG. 1;

FIG. 3 is a schematic left side view of the drive mechanism of the smart door latch cover of FIG. 1;

FIG. 4 is a schematic top view of the drive mechanism of the smart door latch cover of FIG. 1;

FIG. 5 is an exploded schematic view of the drive mechanism of the smart door latch cover of FIG. 1;

FIG. 6 is a schematic cross-sectional view of the drive mechanism of the smart door latch cover of FIG. 1;

FIG. 7 is an enlarged view of section A of the drive mechanism of the smart door latch cover of FIG. 1;

FIG. 8 is a schematic view of a stop member of the drive mechanism of the smart door latch cover of FIG. 1;

FIG. 9 is a schematic view of a speed reduction mechanism of the drive mechanism of the smart door latch cover of FIG. 1;

fig. 10 is another schematic view of the speed reduction mechanism of the drive mechanism of the smart door latch cover of fig. 1.

The designations in the figures have the following meanings: 100-a base; 101-left sliding rail; 102-right slide rail; 103-a limiting groove; 104-a stop member; 105-a compression spring; 200-a sliding mount; 201-left chute; 202-right chute; 203-a projection; 300-a drive assembly; 310-a motor; 312 — output gear; 320-a speed reducing mechanism; 320 a-a first coaxial gear set; 320 b-a second coaxial gear set; 320 c-third coaxial gear set; 320 d-fourth coaxial gear set; 321-a first gear; 322-a second gear; 323-third gear; 324-a fourth gear; 325-fifth gear; 326-sixth gear; 327-seventh gear; 328-eighth gear; 330-rack.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Is formed integrally

As shown in fig. 1-10, the present embodiment provides an intelligent door latch cover drive mechanism 1000.

As shown in fig. 1, 3, 5, 9 and 10, the driving mechanism 1000 of the intelligent door lock cover includes a base 100, a sliding mount 200 and a driving assembly 300 for driving the sliding mount 200 to slide relative to the base 100.

The drive assembly 300 includes a motor 310 having an output gear 312, a reduction mechanism 320, and a rack 330. The rack gear 330 is fixed on the base 100.

The reduction mechanism 320 includes a first coaxial gear set 320a, a second coaxial gear set 320b, a third coaxial gear set 320c, and a fourth coaxial gear set 320 d.

The first coaxial gear set 320a includes a first gear 321 and a second gear 322, the second coaxial gear set 320b includes a third gear 323 and a fourth gear 324, the third coaxial gear set 320c includes a fifth gear 325 and a sixth gear 326, and the fourth coaxial gear set 320d includes a seventh gear 327 and an eighth gear 328.

The output gear 312 is engaged with the first gear 321, the second gear 322 is engaged with the third gear 323, the fourth gear 324 is engaged with the fifth gear 325, the sixth gear 326 is engaged with the seventh gear 327, and the eighth gear 328 is engaged with the rack 330.

Wherein, the base 100 and the sliding installation seat 200 form a sliding connection through the cooperation of the sliding rail and the sliding groove, and the sliding installation seat 200 is limited to slide in the up-and-down direction.

A motor 310 having an output gear 312 and a reduction mechanism 320 are mounted on the slide mount 200 to follow the movement of the slide mount 200.

The eighth gear 328 is engaged with the rack 330, and the eighth gear 328 rolls on the rack 330, so as to drive the sliding mount 200 to slide on the base 100.

Since the resistance for obstructing the movement of the sliding mount 200 comes from the magnetic resistance of the motor 310, the frictional resistance between the sliding rail and the sliding groove, and the resistance generated by the gear engagement, when the self gravity of the sliding cover of the intelligent door lock and the driving assembly 300 is greater than the resistance borne by the sliding mount 200, the sliding cover of the intelligent door lock and the driving assembly 300 can slide down by the self gravity.

Further, as shown in fig. 9, the motor 310 is a brushless motor. The brush core motor has magnetic resistance. The brushless motor is more beneficial to the self gravity falling back to the starting point after the power failure

The magnetic resistance of the brushless motor is almost zero, so that the resistance generated when the brushless motor is driven by external force is almost zero.

Further, as shown in fig. 2, 4, and 7, a left slide rail 101 and a right slide rail 102 are respectively disposed on two sides of the base 100, and the sliding mount 200 is respectively provided with a left slide groove 201 matching the left slide rail 101 and a right slide groove 202 matching the right slide rail 102.

Wherein, the left runner 201 and the right runner 202 are embedded with plastic, so as to reduce the friction resistance during sliding and increase the silencing effect.

Further, in the present embodiment, the reduction ratio of the meshing of the output gear 312 and the first gear 321 is 2, the reduction ratio of the meshing of the second gear 322 and the third gear 323 is 3, the reduction ratio of the meshing of the fourth gear 324 and the fifth gear 325 is 3, and the reduction ratio of the meshing of the sixth gear 326 and the seventh gear 327 is 4. The total reduction ratio of the available reduction mechanism 320 is 72.

Because the reduction ratio is increased step by step and each reduction ratio is set within 5, the stress among the gears is balanced, thereby protecting the gears. Because the stressed gears are balanced, when the sliding cover of the intelligent door lock is manually slid, the operation is smooth, and the gears are not easy to break.

In other embodiments, the reduction ratio of the reduction mechanism 320 can range from 20-100, depending on the particular needs.

Further, as shown in fig. 8, the top of the base 100 is provided with a limiting groove 103, a limiting member 104 and a compression spring 105 which always applies an acting force to the limiting member 104 in a locking direction, and the inner side of the sliding installation seat 200 is provided with a protrusion 203 which is matched with the limiting groove 103.

Wherein, the limiting groove 103 is arranged on the rack 330 fixedly connected with the base 100 and used for limiting the moving position of the convex part 203. Meanwhile, the limiting member 104 and the compression spring 105 play a role of the locking protrusion 203, and prevent the intelligent door lock cover from automatically sliding downwards after losing the driving force.

As shown in fig. 6, 9 and 10, the first gear 321 in the speed reducing mechanism 320 is engaged with and located inside the second gear 322, the third gear 323 is located outside the fourth gear 324, the fifth gear 325 is located inside the sixth gear 326, and the seventh gear 327 is located outside the eighth gear 328.

The reduction mechanism 320 is mounted in the slide mount 200, thereby forming a compact gear box.

Working principle and typical operation stepsMethod for preparing a Chinese medicinal composition

In a specific embodiment, the smart door lock cover (not shown) is fixed to the sliding mount 200, the base 100 is fixed to the smart door lock body, and the smart door lock body is fixed to the door.

In the energized state, the motor 310 is energized to start operation. The power is transmitted to the rack 330 step by step through the speed reducing mechanism 320, and the intelligent door lock cover, the sliding mounting seat 200 and the speed reducing mechanism 320 slide up and down along the base 100 under the reverse thrust of the rack 330.

When the projection 203 provided inside the slide mount 200 moves to the stopper member 104, the projection 203 applies a pushing force to the stopper member 104.

Under the urging force, the stopper member 104 moves rightward, compressing the spring 105, until the projection 203 passes over the stopper member 104, reaching the stopper groove 103.

At this time, the smart door lock cover, the slide mount 200, and the speed reduction mechanism 320 slide upward to the maximum position.

Meanwhile, the stopper member 104 is moved leftward to the locking position by the elastic force of the spring 105 to lock the projection 203, and the projection 203 is temporarily caught in the stopper groove 103.

At this time, the intelligent door lock cover, the sliding mounting seat 200 and the speed reducing mechanism 320 cannot slide up and down at will, and the opening operation is completed.

When the cover is closed, the motor 310 is powered on and rotates reversely.

Power is transmitted through the speed reducing mechanism 320 to cause the slide mount 200 to slide downward.

Under the assistance of the self-weight of the smart door lock cover, the sliding mount 200 and the speed reduction mechanism 320, the protrusion 203 applies a pushing force to the stop member 104, so that the stop member 104 moves rightwards, compressing the spring 105 until the protrusion 203 passes over the stop member 104.

Subsequently, the stopper member 104 is moved leftward to the original position by the elastic force of the spring 105.

At this time, the motor 310 may not be powered on, and the smart door lock cover, the sliding mount 200, and the speed reduction mechanism 320 slide down by their own gravity and return to the position when the smart door lock cover is closed, and the cover closing operation is completed.

In case of power outage:

when the door is opened, an upward pushing force needs to be manually applied to the intelligent door lock cover, so that the intelligent door lock cover, the sliding mounting seat 200 and the speed reducing mechanism 320 slide to the highest point along the base 100.

At this time, the protruding portion 203 is locked by the stopper member 104, and the smart door lock cover and the slide mount 200 cannot slide up and down, and the opening operation is completed.

Throughout the uncapping process, the movement of the stop member 104 is consistent with the uncapping process described above when energized.

When closing the door, a downward pushing force is applied to the intelligent door lock cover to make the protrusion 203 pass over the limiting member 104.

At this time, the pushing force does not need to be manually applied to the intelligent door lock cover. The intelligent door lock cover and the sliding installation seat 200 slide downwards by means of self gravity and return to the position of the intelligent door lock cover when the intelligent door lock cover is closed, and the cover closing action is completed.

The movement of the stop member 104 is consistent with the closing process described above when powered on throughout the closing process.

Meaning of terms herein

1. With regard to the term "reduction ratio" herein,

the reduction ratio is the input speed divided by the output speed, which is the ratio of the connected input speed and output speed. Such as: the input rotating speed is 1500r/min, the output rotating speed is 25r/min, and then the reduction ratio is as follows: i is 60: 1. The method for calculating the gear train reduction ratio comprises the following steps: the reduction ratio is driven gear tooth number divided by the driving gear tooth number (if the reduction ratio is multi-stage gear reduction, the driven gear tooth number divided by the driving gear tooth number of each pair of engaged gear sets, and the multiplication results are the reduction ratio of the multi-stage gear reduction).

2. With respect to the term "detent force" herein "

The magnetic resistance means that two ends of a rotor core of the permanent magnet synchronous linear motor are disconnected, and obvious end effect stress exists even under the condition that a motor winding is not electrified. Meanwhile, the linear motor iron core is grooved, so that the tooth space effect stress is generated, and the resultant force of the end effect stress and the tooth space effect stress is called magnetic resistance. The existence of the magnetic resistance force causes the thrust fluctuation of the permanent magnet synchronous linear motor. The linear motor adopts a direct driving mode, various disturbances of the system are not buffered and damped by an intermediate mechanical transmission link, and the direct reaction on the motor also forms thrust fluctuation.

In the description of the present invention, moreover, the terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of indicated technical features. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the embodiments of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "height", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the embodiments of the present invention.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise direct contact between the first and second features through another feature not in direct contact. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

In the description of the present specification, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (7)

1. A driving mechanism of an intelligent door lock cover is characterized by comprising a base (100), a sliding installation seat (200) and a driving assembly (300) for driving the sliding installation seat (200) to slide relative to the base (100), wherein the driving assembly (300) comprises a motor (310) with an output gear (312), a speed reducing mechanism (320) and a rack (330), and the rack (330) is fixed on the base (100);

the reduction mechanism (320) includes a first coaxial gear set (320a), a second coaxial gear set (320b), a third coaxial gear set (320c), and a fourth coaxial gear set (320d), the first coaxial gear set (320a) includes a first gear (321) and a second gear (322), the second coaxial gear set (320b) includes a third gear (323) and a fourth gear (324), the third coaxial gear set (320c) includes a fifth gear (325) and a sixth gear (326), the fourth coaxial gear set (320d) includes a seventh gear (327) and an eighth gear (328), the output gear (312) meshes with the first gear (321), the second gear (322) meshes with the third gear (323), the fourth gear (324) meshes with the fifth gear (325), and the sixth gear (326) meshes with the seventh gear (327), the eighth gear (328) is engaged with the rack (330).

2. The intelligent door-lock cover drive mechanism according to claim 1, wherein the motor (310) is a brushless motor.

3. The driving mechanism of the intelligent door lock cover according to claim 1, wherein a left sliding rail (101) and a right sliding rail (102) are respectively disposed on two sides of the base (100), and the sliding mounting seat (200) is respectively provided with a left sliding slot (201) matched with the left sliding rail (101) and a right sliding slot (202) matched with the right sliding rail (102).

4. The driving mechanism of the intelligent door lock cover according to claim 1, wherein the reduction ratio of the meshing of the output gear (312) and the first gear (321) is 1-3, the reduction ratio of the meshing of the second gear (322) and the third gear (323) is 2-4, the reduction ratio of the meshing of the fourth gear (324) and the fifth gear (325) is 2-4, and the reduction ratio of the meshing of the sixth gear (326) and the seventh gear (327) is 3-5.

5. The driving mechanism of the intelligent door lock cover according to claim 1, wherein the top of the base (100) is provided with a limiting groove (103), a limiting member (104) and a compression spring (105) which always applies force to the limiting member (104) in the locking direction, and the inner side of the sliding installation seat (200) is provided with a protruding part (203) which is matched with the limiting groove (103).

6. The intelligent door-lock cover driving mechanism according to claim 1, wherein the first gear (321) is meshed inside the second gear (322), the third gear (323) is meshed outside the fourth gear (324), the fifth gear (325) is meshed inside the sixth gear (326), and the seventh gear (327) is meshed outside the eighth gear (328).

7. An intelligent door lock, characterized by comprising a driving mechanism of the intelligent door lock cover according to any one of claims 1 to 6.

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