阅读说明：本技术 一种智能门锁 (Intelligent door lock ) 是由 樊志阳 吴姗姗 刘欢 于 2021-01-22 设计创作，主要内容包括：本发明公开了一种智能门锁,包括壳体和旋钮,所述壳体包括前壳体和后壳体,在壳体内设置有传动机构,所述传动机构包括电动传动装置和离合机构；其中电机通过齿轮组件带动离合齿轮旋转过程中,会使得离合齿轮带动离合顶板旋转,从而带动转动方轴旋转来实现锁体的开关锁,从而实现电动开关锁,而在手动开关锁时,所述旋钮是直接带动转动方轴旋转实现锁体的开关锁,并且离合顶板能与离合齿轮相对转动一定角度,因此手动开关锁并不会带动电动传动装置运行,从而保护电动传动装置的电机,也不会阻碍旋钮旋转,从而影响手动开关锁时旋钮旋转手感。(The invention discloses an intelligent door lock, which comprises a shell and a knob, wherein the shell comprises a front shell and a rear shell, a transmission mechanism is arranged in the shell, and the transmission mechanism comprises an electric transmission device and a clutch mechanism; wherein the motor passes through the gear assembly and drives the rotatory in-process of clutch gear, can make clutch gear drive the separation and reunion roof rotatory to the drive rotates the switch lock that the square shaft is rotatory to realize the lock body, thereby realizes the electric switch lock, and when manual switch lock, the knob directly drives the switch lock that the square shaft is rotatory to realize the lock body, and the separation and reunion roof can rotate certain angle with clutch gear relatively, therefore the manual switch lock can not drive the electric transmission operation, thereby protection electric transmission's motor can not hinder the knob rotatory yet, thereby the knob is rotatory to be felt when influencing the manual switch lock.)

1. The utility model provides an intelligence lock, includes casing and knob, the casing includes procapsid and back casing, characterized by: a transmission mechanism is arranged in the shell and comprises an electric transmission device and a clutch mechanism;

the knob is provided with a rotating square shaft connected with the lock body, and the rotating square shaft can drive the lock body to open and close the lock through rotation;

the clutch mechanism comprises a clutch top plate, a clutch gear and a clutch spring, the clutch spring drives the clutch top plate to be matched with the clutch gear, the clutch top plate is provided with a square hole matched with a rotating square shaft, and the knob can drive the clutch top plate to rotate relative to the clutch gear through the rotating square shaft;

the electric transmission device comprises a motor, a gear assembly and a battery for driving the motor to operate; the motor passes through the gear assembly and drives the rotatory in-process of clutch gear, can make clutch gear drive separation and reunion roof rotatory to it is rotatory to drive the square shaft that rotates.

2. The intelligent door lock of claim 1, wherein: the clutch gear is provided with a first clutch bulge towards the matching end surface of the clutch top plate; the clutch top plate is provided with a second clutch bulge facing the matching end face of the clutch gear;

in the rotating process of the clutch gear, the first clutch protrusion can be abutted against the second clutch protrusion to push the clutch top plate to rotate, and when the resistance borne by the clutch top plate is greater than the driving force of the clutch gear borne by the clutch top plate, the first clutch protrusion can pass through the second clutch protrusion, so that the clutch top plate and the clutch gear rotate relatively.

3. The intelligent door lock of claim 2, wherein: the first clutch bulges are symmetrically distributed on the matching end surface of the clutch gear, and the second clutch bulges are symmetrically distributed on the matching end surface of the clutch top plate;

the first clutch bulges and the second clutch bulges are in one-to-one correspondence and are arranged in a staggered mode.

4. An intelligent door lock according to claim 1, 2 or 3, wherein: the clutch gear is provided with a clutch rotating groove matched with the clutch top plate, and the clutch top plate is arranged in the clutch rotating groove under the action of the clutch spring.

5. An intelligent door lock according to claim 1, 2 or 3, wherein: the clutch spring is a conical spring, and the large end face of the clutch spring is matched with the annular mounting groove of the clutch top plate.

6. An intelligent door lock according to claim 1, 2 or 3, wherein: the knob is provided with a limiting protrusion, the front shell is provided with a limiting arc-shaped groove, and when the knob rotates, the limiting protrusion can move in the limiting arc-shaped groove.

7. An intelligent door lock according to claim 1, 2 or 3, wherein: one end part of the rotating square shaft facing the knob is a rotating shaft part, and the clutch gear is rotatably arranged on the rotating shaft part.

8. An intelligent door lock according to claim 1, 2 or 3, wherein: the gear assembly comprises a worm and a deceleration transition gear, and the deceleration transition gear comprises a transmission helical gear meshed with the worm and a deceleration straight gear meshed with the clutch gear.

Technical Field

The invention relates to the field of door locks, in particular to an intelligent door lock.

Background

The intelligent lock has two modes of manual lock opening and closing and electric lock opening and closing, and respectively corresponds to the lock opening and closing scenes inside and outside the door. When the door is opened and closed, the door can be opened and closed in an external mode through fingerprints, an ic card, keys and the like, when the door is opened and closed, only the knob is turned in a twisting mode, the electric switch can drive the manual knob to rotate, and when the manual switch is locked, if the transmission element which drives the electric lock to be opened is rotated, the motor can be easily damaged, and the service life of the intelligent door lock is influenced.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide an intelligent door lock.

In order to achieve the purpose, the invention provides the following technical scheme:

an intelligent door lock comprises a shell and a knob, wherein the shell comprises a front shell and a rear shell, a transmission mechanism is arranged in the shell, and the transmission mechanism comprises an electric transmission device and a clutch mechanism;

the knob is provided with a rotating square shaft connected with the lock body, and the rotating square shaft can drive the lock body to open and close the lock through rotation;

the clutch mechanism comprises a clutch top plate, a clutch gear and a clutch spring, the clutch spring drives the clutch top plate to be matched with the clutch gear, the clutch top plate is provided with a square hole matched with a rotating square shaft, and the knob can drive the clutch top plate to rotate relative to the clutch gear through the rotating square shaft;

the electric transmission device comprises a motor, a gear assembly and a battery for driving the motor to operate; the motor passes through the gear assembly and drives the rotatory in-process of clutch gear, can make clutch gear drive separation and reunion roof rotatory to it is rotatory to drive the square shaft that rotates.

The invention further provides that: the clutch gear is provided with a first clutch bulge towards the matching end surface of the clutch top plate; the clutch top plate is provided with a second clutch bulge facing the matching end face of the clutch gear;

in the rotating process of the clutch gear, the first clutch protrusion can be abutted against the second clutch protrusion to push the clutch top plate to rotate, and when the resistance borne by the clutch top plate is greater than the driving force of the clutch gear borne by the clutch top plate, the first clutch protrusion can pass through the second clutch protrusion, so that the clutch top plate and the clutch gear rotate relatively.

The invention further provides that: the first clutch bulges are symmetrically distributed on the matching end surface of the clutch gear, and the second clutch bulges are symmetrically distributed on the matching end surface of the clutch top plate;

the first clutch bulges and the second clutch bulges are in one-to-one correspondence and are arranged in a staggered mode.

The invention further provides that: the clutch gear is provided with a clutch rotating groove matched with the clutch top plate, and the clutch top plate is arranged in the clutch rotating groove under the action of the clutch spring.

The invention further provides that: the clutch spring is a conical spring, and the large end face of the clutch spring is matched with the annular mounting groove of the clutch top plate.

The invention further provides that: the knob is provided with a limiting protrusion, the front shell is provided with a limiting arc-shaped groove, and when the knob rotates, the limiting protrusion can move in the limiting arc-shaped groove.

The invention further provides that: one end part of the rotating square shaft facing the knob is a rotating shaft part, and the clutch gear is rotatably arranged on the rotating shaft part.

The invention further provides that: the gear assembly comprises a worm and a deceleration transition gear, and the deceleration transition gear comprises a transmission helical gear meshed with the worm and a deceleration straight gear meshed with the clutch gear.

The invention has the beneficial effects that: when the electric lock is opened and closed, the motor drives the clutch gear to rotate through the gear assembly, so that the clutch gear drives the clutch top plate to rotate, the rotating square shaft is driven to rotate to realize the opening and closing of the lock body, and the electric lock is realized.

Drawings

FIG. 1 is a schematic structural diagram of an intelligent door lock according to the present invention;

FIG. 2 is a schematic structural view of the housing;

FIG. 3 is a schematic view of a knob;

FIG. 4 is a first schematic structural diagram of a transmission mechanism;

FIG. 5 is a second schematic structural view of the transmission mechanism;

FIG. 6 is an exploded view of the clutch mechanism;

FIG. 7 is a schematic structural view of a clutch gear;

FIG. 8 is a first structural view of the clutch top plate;

fig. 9 is a second schematic structural view of the clutch top plate.

Description of reference numerals: 1. a housing; 11. a front housing; 111. limiting the arc-shaped groove; 12. a rear housing; 2. a knob; 21. rotating the square shaft; 22. a limiting protrusion; 23. a rotation shaft portion; 3. a transmission mechanism; 31. an electric transmission; 311. a motor; 312. a gear assembly; 314. a worm; 315. a reduction transition gear; 316. a transmission bevel gear; 317. a deceleration spur gear; 32. a clutch mechanism; 321. a clutch top plate; 3211. a square hole; 3212. an annular mounting groove; 3213. a second clutch projection; 322. a clutch gear; 3221. a first clutch projection; 3222. a clutch rotating groove; 323. a clutch spring.

Detailed Description

An intelligent door lock according to the present invention will be described in further detail with reference to fig. 1 to 9.

As can be seen from fig. 1 to 3, an intelligent door lock comprises a housing 1 and a knob 2, wherein the housing 1 comprises a front housing 11 and a rear housing 12, wherein the knob 2 is rotatably arranged on the front shell 11, the knob 2 is also provided with a rotating square shaft 21 connected with the lock body, the rotating square shaft 21 can drive the lock body to open and close the lock, the prior art in which the square rotating shaft 21 is inserted into the lock body to perform the locking and unlocking is adopted, and will not be described in detail herein, the knob 2 is provided with a stopper protrusion 22, the front case 11 is provided with a stopper arc-shaped groove 111, when the knob 2 is rotated, the limit protrusion 22 can move in the limit arc-shaped groove 111, the rotary knob 2 is guided to rotate, and the rotating angle of the rotary knob 2 is limited, so that the rotating angle of the rotary knob 2 is prevented from being too large, the radian of the limiting arc-shaped groove 111 is 180 degrees, so that the knob 2 can rotate forwards by 90 degrees or reversely by 90 degrees to be locked and unlocked.

As can be seen from fig. 4, 5 and 6, a transmission mechanism 3 is arranged in the housing 1, wherein the transmission mechanism 3 comprises an electric transmission 31 and a clutch mechanism 32; the clutch mechanism 32 comprises a clutch top plate 321, a clutch gear 322 and a clutch spring 323, wherein the clutch top plate 321 is provided with a square hole 3211 matched with the rotating square shaft 21, so that the clutch top plate 321 and the rotating square shaft 21 cannot rotate relatively, but the clutch top plate 321 can move back and forth along the rotating square shaft 21; wherein one end of the rotating square shaft 21 facing the knob 2 is a rotating shaft 23, the clutch gear 322 is rotatably disposed on the rotating shaft 23, the clutch gear 322 rotates relative to the rotating square shaft 21, and the installation of the clutch gear 322 is facilitated.

The clutch spring 323 drives the clutch top plate 321 to be matched with the clutch gear 322, wherein the clutch spring 323 can be a conical spring, and the large end surface of the clutch spring 323 is matched with the annular mounting groove 3212 of the clutch top plate 321, so that the clutch spring 323 can be conveniently mounted, and the clutch spring 323 is prevented from being deflected due to stress deformation.

As can be seen from fig. 7, the clutch gear 322 is provided with a first clutch protrusion 3221 toward the mating end surface of the clutch top plate 321; as can be seen from fig. 8, the clutch top plate 321 is provided with a second clutch projection 3213 facing the mating end surface of the clutch gear 322; the number of the first engaging and disengaging protrusions 3221 is two, and the first engaging and disengaging protrusions are symmetrically distributed on the mating end surface of the engaging and disengaging gear 322, and the number of the second engaging and disengaging protrusions 3213 is two, and the second engaging and disengaging protrusions are symmetrically distributed on the mating end surface of the engaging and disengaging top plate 321; the first clutch protrusions 3221 and the second clutch protrusions 3213 are in one-to-one correspondence and are arranged in a staggered manner, so that the second clutch protrusions rotate from one first clutch protrusion 3221 to the other first clutch protrusion 3221, and the idle rotation angle of the second clutch protrusions can be 180 degrees, therefore, when the knob 2 is turned clockwise 90 degrees or counterclockwise 90 degrees to perform switching and locking, the knob 2 can drive the clutch top plate 321 to rotate relative to the clutch gear 322 by rotating the square shaft 21, and therefore, the manual switching and locking cannot drive the electric transmission device 31 to operate, a motor of the electric transmission device 31 is protected, the rotation of the knob 2 cannot be hindered, and the rotation hand feeling of the knob 2 during the manual switching and locking cannot be influenced.

The electric transmission device 31 comprises a motor 311, a gear assembly 312 and a battery for driving the motor 311 to operate; the gear assembly 312 includes a worm 314 and a deceleration transition gear 315, and the deceleration transition gear 315 includes a transmission helical gear 316 engaged with the worm 314 and a deceleration spur gear 317 engaged with the clutch gear 322, so that the motor 311 rotates the clutch gear 322 through the gear assembly 312, so that the motor 311 can rapidly and stably rotate the clutch gear 322.

In the process of rotating the clutch gear 322, first the first clutch protrusion 3221 idles to the second clutch protrusion 3213, at this time, the first clutch protrusion 3221 abuts against the second clutch protrusion 3213 to push the clutch top plate 321 to rotate, so as to drive the rotating square shaft 21 to rotate to complete the switch lock, and the rotating square shaft 21 will not rotate after completing the switch lock, at this time, the rotating square shaft 21 will obstruct the rotation of the clutch top plate 321, when the resistance applied to the clutch top plate 321 is greater than the pushing force applied to the clutch top plate 321 by the clutch gear 322, the first clutch protrusion 3221 will pass over the second clutch protrusion 3213, so that the clutch top plate 321 and the clutch gear 322 rotate relatively, thereby preparing for the next switch lock, and simultaneously avoiding the overload of the motor 311, and playing a role of protecting the motor 311.

The clutch gear 322 is provided with a clutch rotating groove 3222 matched with the clutch top plate 321, and the clutch top plate 321 is arranged in the clutch rotating groove 3222 under the action of the clutch spring 323, so that the clutch top plate 321 is convenient to mount, and the rotation of the clutch top plate 321 is guided.

To further explain how the clutch mechanism 32 of the door lock can be used to combine and separate the manual switch lock and the electric switch lock, the door lock is switched to the starting position, and the switch lock is performed in different ways.

One, manual unlocking → manual locking

When the knob 2 is rotated forward and backward to drive the rotating square shaft 21 to unlock or lock, the second clutch projection 3213 can rotate the two first clutch projections 3221 back and forth, and at the moment, the second clutch projection 3213 can not abut against the first clutch projections 3221, so when the knob 2 is rotated to drive the clutch top plate 321, the clutch gear 322 can not be driven to rotate together, and therefore, the manual switch lock can not drive the electric transmission device 31 to operate, thereby protecting the motor 311 of the electric transmission device 31, and the knob 2 can not be blocked from rotating, thereby the rotating hand feeling of the knob 2 when the manual switch lock is not influenced.

Second, electric unlocking → electric locking

The electric switch lock is powered by the motor 311, the initial state is the lock closing state, when the fingerprint or password is unlocked, the motor 311 drives the worm 314 to rotate, the power is transmitted to the clutch gear 322 by the speed reduction transition gear 315, the first clutch bulge 3221 of the clutch gear 322 pushes the second clutch bulge 3213 of the clutch top plate 321 to rotate 90 degrees, the unlocking is completed, and after the unlocking, the first clutch bulge 3221 will continue to rotate for an angle to pass the second clutch bulge 3213 to prepare for the next lock closing. When the lock is closed by a fingerprint or a password, the motor 311 drives the clutch gear 322 to rotate reversely, the clutch gear 322 pushes the clutch top plate 321 to rotate by 90 degrees, the lock closing is completed, the first clutch bulge 3221 of the clutch gear 322 can continuously rotate to pass through the bulge of the clutch top plate 321 after the lock is closed to prepare for unlocking next time, the motor 311 is prevented from being overloaded, and the function of protecting the motor 311 is achieved.

Third, electric unlocking → manual locking → electric unlocking

When the fingerprint or password is unlocked, the motor 311 drives the worm 314 to rotate, the power is transmitted to the clutch gear 322 by the reduction transition gear 315, the first clutch projection 3221 of the clutch gear 322 pushes the second clutch projection 3213 of the clutch top plate 321 to rotate by 90 degrees, and the unlocking is completed, and after the unlocking, the first clutch projection 3221 of the clutch gear 322 continues to rotate by an angle to pass over the second clutch projection 3213 of the clutch top plate 321 to prepare for the next locking. When the manual locking is switched, the knob 2 is turned to complete locking, and then the electric unlocking is performed, at this time, the clutch gear 322 idles 90 degrees at first, so that the first clutch protrusion 3221 abuts against the second clutch protrusion 3213 of the clutch top plate 321 and then drives the clutch top plate 321 to rotate to complete unlocking, and after the unlocking is completed, the first clutch protrusion 3221 of the clutch gear 322 continuously rotates to pass through the protrusion of the clutch top plate 321 to prepare for next unlocking.

Consequently, combine two kinds of manual switch locks and electric switch lock mode together through separation and reunion roof 321 and separation and reunion gear 322 cooperation, avoid two kinds of modes to take place mutual interference for the structure is more reasonable, also protects motor 311 simultaneously, improves intelligent lock life.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.