CN114215423B - Clutch transmission device applied to intelligent lock - Google Patents

Abstract

A clutch transmission device applied to an intelligent lock comprises a mechanical clutch mechanism and a variable-speed transmission mechanism, wherein the mechanical clutch mechanism controls connection and disconnection between a handle and the variable-speed transmission mechanism, the mechanical clutch mechanism is a middle one, two groups of clutch structures are respectively matched with a clutch motor device and a mechanical lock cylinder to form a clutch structure required by pressing the intelligent lock to unlock under the handle, the reliability of the intelligent lock is ensured in an independent double-clutch mode, and the other group of clutch structure is matched with a shell of the handle and the clutch transmission mechanism to form a clutch structure required by closing the lock on the handle of the intelligent lock; the speed-changing transmission mechanism is matched with the mechanical clutch mechanism and the lock body driving lock core, the rotation of the handle is transmitted to the lock body driving lock core in a speed-changing manner according to a certain proportion, and the shifting head of the lock body driving lock core rotates and shifts the extension and retraction of the dead bolt and the latch bolt of the lock body. The invention improves the universal matching of the intelligent lock and realizes the lossless installation of the intelligent lock.

Description

Clutch transmission device applied to intelligent lock

Technical Field

The invention relates to a lockset, in particular to a clutch transmission device applied to an intelligent lock.

Background

The basic principle of the intelligent lock is that the electronic module performs door opening legality authentication to control the disengagement and the engagement of the clutch, so that the mechanical transmission part can open the door when the mechanical transmission part is engaged and cannot open the door when the mechanical transmission part is disengaged. The clutch and the mechanical transmission component are core components of the electronic lock, which are used for cooperation of electronic components and mechanical components, and are key core technologies in the design of the electronic lock.

The current intelligent locks on the market are divided into two categories. One type is that the clutch is arranged on the intelligent lock panel, the electronic lock handle and the square rod are controlled to be disconnected and connected through the clutch, and the mechanical lock body with double-speed function is matched with the clutch, namely, the square bolt and the oblique bolt of the lock body can be driven to extend and retract through the square rod. The other type is to embed a clutch in a lock body, and the lock body has a double-speed function, and a panel of the intelligent lock is only used as a carrier and a decoration of an electronic module. The two types of intelligent locks have a common point, namely, when the mechanical lock is replaced by the intelligent lock, the lock body on the original door needs to be replaced, and the reason is that the lock body of the mechanical lock does not have the double-function in common household equipment, namely, the lock core can drive the dead bolt and the oblique bolt of the lock body, and the dead bolt can only drive the oblique bolt of the lock body. Firstly, mechanical lock bodies on the market are various, and the position and the size of a square rod are not unified; the lock body and the door are mutually matched, hole positions on the door are different according to different lock bodies, so that when the lock body is replaced, most of the requirements are that a hole needs to be newly opened on the door for a new lock body, and great technical requirements and installation risks are brought to the installation of the intelligent lock; the position and the size of the inserted hole of the spring bolt on the door frame also need to be adjusted according to different lock bodies. The original structure of a door and a door frame is damaged by the installation mode of replacing the lock body, the installation mode is called as 'destructive' installation in the industry, the problem that 70% of intelligent locks are not the problem of products of the intelligent locks according to statistics, but the problem that users do not know how to select due to the fact that the door locks are not adaptive, 'destructive' installation and high installation requirements are caused by the fact that the door locks are not matched, the intelligent locks cannot be opened in the replacement market at late time at present, the 'destructive' installation and the high installation requirements further cause the after-sale problem of the intelligent locks, the installation technical requirements are high, the training cost of installers is high, meanwhile, operation errors in the installation process are easy to generate, and unnecessary sales disputes are caused. At present, no intelligent lock manufacturer in China can establish a set of complete and mature installation and after-sale system.

How to realize the non-adaption of the door lock and the non-destruction during the installation is an important subject of the intelligent lock reloading market.

Disclosure of Invention

In order to solve the problems of 'destructive' installation, poor universality and the like when the existing intelligent lock is replaced, the invention provides the clutch transmission device which is effectively applied to the intelligent lock and has good 'nondestructive' installation and universality, so that the universal matching property of the intelligent lock is improved, and the nondestructive installation of the intelligent lock is realized.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a clutch transmission device applied to an intelligent lock comprises a mechanical clutch mechanism, a variable speed transmission mechanism, a device bottom shell and a device upper cover, wherein the mechanical clutch mechanism is directly connected with a handle outside an electronic lock panel, and comprises three clutch structures which are respectively matched with a clutch motor device, a mechanical lock cylinder and the handle to control the connection and disconnection between the mechanical clutch mechanism and the variable speed transmission mechanism; the variable-speed transmission mechanism is matched with the mechanical clutch mechanism and the lock cylinder driving square rod to transmit the rotation of the handle to the lock cylinder driving square rod in a variable speed according to a certain proportion; the clutch transmission is arranged on the device bottom shell and the device upper cover.

Further, the mechanical clutch mechanism comprises three clutch structures and a bolt driving structure, and comprises a clutch base, a transmission part, a reversing screw, three bolts (a first bolt, a second bolt and a third bolt), four reset springs (a first reset spring, a second reset spring, a third reset spring and a fourth reset spring), two bolt cover plates (a first bolt cover plate and a second bolt cover plate), a bolt covering part, steel balls, a push plate, a push rod, a driving spring, two gaskets (a first gasket and a second gasket) and a clutch bearing;

the clutch base is provided with a handle connector, a handle connecting screw through hole, a reversing thread through hole, a first bolt groove, a second bolt groove, a third bolt through hole, a concave ring, a circular raised head and a balance raised head;

the first bolt and the first reset spring are embedded in the first bolt groove, the first bolt cover plate covers the first bolt groove and is fixed by screws, and a first clutch structure is formed by the first bolt cover plate and the first bolt groove; the second bolt and the second reset spring are embedded in a second bolt groove, and the second bolt cover plate covers the second bolt groove and is fixed by screws, so that a second clutch structure is formed; the third reset spring is sleeved on the third bolt, the small steel balls, the third bolt and the third reset spring are sequentially arranged in a third bolt through hole, a bolt telescopic hole is formed in the bolt covering piece, the bolt covering piece is covered on the third bolt through hole and fixed through screws, and the bolt telescopic hole of the bolt covering piece is aligned with the third bolt to form a third clutch structure; the driving spring, the two gaskets and the fourth return spring are sequentially sleeved on the push rod, the push plate is provided with a long hole and a bending foot, the bending foot of the push plate is sleeved on the push rod and embedded between the two gaskets, and the long hole and the bending foot form a bolt driving structure;

the transmission part is a clutch and transmission structural part of the mechanical clutch mechanism, a through hole is formed in the middle of the transmission part, a shifting block is arranged on the front side of the transmission part, resetting feet are arranged on two sides of the transmission part, two semicircular retaining rings are arranged on the bottom surface of the transmission part, the through hole is sleeved on the circular convex head of the clutch base, the two semicircular retaining rings are embedded in the concave ring of the clutch base, and the upper and lower gaps of the two semicircular retaining rings are respectively in separation and combination fit with the first bolt and the second bolt of the first clutch structure and the second clutch structure;

the inner ring of the clutch bearing is sleeved on the circular convex head of the clutch base, and the outer ring of the clutch bearing is matched with the through hole of the transmission part; the reversing screw is screwed on the reversing thread through hole of the clutch base.

Still further, the variable speed transmission mechanism comprises three gears which are respectively a functional toothed sheet, a transition gear and an output gear, wherein the functional gear is provided with a limiting through hole, an arc-shaped through groove and an incomplete circular tooth, two shifting blocks are arranged on the left and right of the functional gear, the transition gear is provided with a complete circular tooth and two limiting pins, the output gear main body is a round rod, the complete circular tooth is arranged outside the output gear main body, and a square through hole is arranged inside the output gear main body;

the limiting through hole of the functional tooth sheet is sleeved on the outer ring of a clutch bearing of the mechanical clutch mechanism, the arc-shaped through groove is matched with a shifting head of a transmission part of the mechanical clutch mechanism, incomplete circular teeth are meshed with complete circular teeth of the transition gear, and the complete circular teeth of the transition gear are meshed with complete circular teeth of the output gear.

And furthermore, a steel column pit is formed in the bottom shell of the device, a third bolt through hole of the third clutch structure is aligned with the steel column pit, and small steel balls of the third clutch structure fall into the corresponding steel column pits.

The bottom shell of the device is also provided with a clutch base position through hole, an output gear position through hole, a conversion gear position hole, a torsion spring convex ring, two torsion spring foot flanges, a push plate limiting screw hole, a push rod limiting frame and a push rod position through hole;

the clutch transmission device also comprises a torsion spring, a first bearing, a second bearing, a third bearing, a first shaft sleeve and a second shaft sleeve, wherein the first bearing is embedded in the through hole at the position of the clutch base, the torsion spring is sleeved on the torsion spring convex ring, two feet of the torsion spring are respectively clamped on the blocking edges of the two torsion spring feet, the second bearing is embedded in the position hole of the conversion gear, the first shaft sleeve is embedded in the through hole at the position of the output gear, a handle connector of the clutch base is embedded in the inner ring of the first bearing, a balance convex head of the clutch base and a reversing screw which is rotatably arranged on the clutch base are respectively matched with the two feet of the torsion spring, two reset feet of the transmission piece are respectively matched with the two feet of the torsion spring, one end of a push rod of the bolt driving structure is sleeved in the through hole at the position of the push rod, the other head of the push rod of the bolt driving structure is arranged on the push rod limiting frame, then, a screw penetrates through the long hole of the push plate and is screwed on the limit screw hole of the push plate, so that the push rod and the push plate of the plug pin driving structure are stacked on the bottom shell of the device;

one limiting pin of the transition gear is embedded in the inner ring of the second bearing, the output gear is embedded in the inner ring of the first shaft sleeve, the inner ring of the third bearing is sleeved on the other limiting pin of the transition gear, and the inner ring of the second shaft sleeve is sleeved on the output gear.

Furthermore, a clutch base position through hole, an output gear position through hole and a conversion gear position hole are formed in the upper cover of the device;

the device upper cover is installed on the device bottom shell, a clutch base position through hole is embedded on an outer ring of a clutch bearing of the mechanical clutch mechanism, an output gear position through hole is embedded on an outer ring of the second shaft sleeve, and a conversion gear position hole cover is embedded on an outer ring of the third bearing.

The handle with the handle connector direct connection of separation and reunion base passes through the screw fixation, makes the handle with the separation and reunion base is direct linkage relation.

In the invention, the clutch transmission device mainly comprises two major parts of a mechanical clutch mechanism and a variable speed transmission mechanism, and is respectively matched with the handle, the clutch motor device, the mechanical lock cylinder and the lock body driving lock cylinder to form a clutch and driving system of an intelligent lock core. The mechanical clutch mechanism is a key mechanism of the intelligent lock in charge of clutching, and controls connection and disconnection between the handle and the variable speed transmission mechanism, the mechanical clutch mechanism is a three-clutch structure originally invented by the invention, two groups of clutch structures of the mechanical clutch mechanism are respectively matched with the clutch motor device and the mechanical lock cylinder to form a clutch structure required by the intelligent lock for pressing the intelligent lock to unlock under the handle, and reliability of the intelligent lock is ensured in an independent double-clutch mode, and the other group of clutch structures of the mechanical clutch mechanism is matched with the handle and a bottom shell of the clutch transmission device to form a clutch structure required by the intelligent lock for closing the lock on the handle; the variable speed transmission mechanism is a driving mechanism of the intelligent lock in charge of variable speed transmission, the variable speed transmission mechanism is matched with the mechanical clutch mechanism and the lock body driving lock cylinder, the rotation of the handle is transmitted to the lock body driving lock cylinder in a variable speed manner according to a certain proportion, and the shifting head of the lock body driving lock cylinder is enabled to rotate and shift the extension and retraction of the dead bolt and the latch bolt of the lock body.

The intelligent lock applying the clutch transmission device provided by the invention can directly reuse the mechanical lock body on the original door when being installed, thereby improving the compatibility of the intelligent lock, realizing the nondestructive installation of the intelligent lock, and solving the industrial pain points of poor compatibility, difficult installation and high after-sale cost of the intelligent lock in the existing market; the original independent three-clutch structure further improves the stability and reliability of the intelligent lock.

The invention has the following beneficial effects: the intelligent lock is effectively mounted in a non-destructive mode, the universality is good, and the reliability of the intelligent lock is effectively improved by the aid of the original independent three-clutch structure.

Drawings

Fig. 1 is a general view of a clutch transmission applied to an intelligent lock.

Fig. 2 is an exploded view of a clutch actuator applied to a smart lock.

Fig. 3 is an exploded view of the mechanical clutch mechanism.

Fig. 4 is a structural view of the clutch base, in which (a) is a front side view and (b) is a rear side view.

FIG. 5 is a structural view of a transmission member, wherein (a) is a front side view and (b) is a rear side view.

Fig. 6 is a structural view of the speed change transmission mechanism.

Fig. 7 is a functional blade.

Fig. 8 is a structural view of a transition gear, in which (a) is a front side view and (b) is a rear side view.

Fig. 9 is an output gear.

Fig. 10 is a bottom case of the device.

Fig. 11 is a device cover.

FIG. 12 is a state diagram of the clutch actuator with the lock closed on the handle.

FIG. 13 is a state diagram of the clutch actuator after the on-handle lock has been closed and when the handle is retracted.

Fig. 14 is a state diagram of the clutch transmission when the lock is unlocked by pressing down the handle.

Fig. 15 is a state diagram of the clutch transmission when the handle is returned after the handle is pressed down to unlock the lock.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

Referring to fig. 1 to 15, a clutch transmission device applied to an intelligent lock includes a mechanical clutch mechanism a, a variable speed transmission mechanism b, a device bottom case c, and a device upper cover d, and further includes some auxiliary components: the device comprises a torsion spring g, three bearings (a first bearing e, a second bearing j and a third bearing k) and two shaft sleeves (a first shaft sleeve h and a second shaft sleeve i); the mechanical clutch mechanism a is directly connected with a handle 2 outside the panel of the electronic lock, and comprises three clutch structures which are respectively matched with a clutch motor device 3, a mechanical lock cylinder 4 and the handle 2 to control the connection and disconnection between the mechanical clutch mechanism a and the variable speed transmission mechanism b; the speed change transmission mechanism b is matched with the mechanical clutch mechanism a and the lock cylinder driving square rod 5 to transmit the rotation of the handle 2 to the lock cylinder driving square rod 5 in a certain proportion of speed change; the bottom shell c of the device is a bearing part of other parts and structures of the clutch transmission device and is also an auxiliary part of the clutch structure; the device upper cover d is also a bearing part of other parts and structures of the clutch transmission device.

Further, the mechanical clutch mechanism a comprises three clutch structures and a bolt driving structure, and the parts of the mechanical clutch mechanism a comprise a clutch base a1, a transmission piece a2, a reversing screw a3, three bolts (a first bolt a4, a second bolt a5 and a third bolt a6), four return springs (a first return spring a7, a second return spring a8, a third return spring a9 and a fourth return spring a10), two bolt cover plates (a first bolt cover plate a11 and a second bolt cover plate a12), a bolt cover piece a13, a steel ball a14, a push plate a15, a push rod a16, a driving spring a17, two gaskets a18 and a clutch bearing a 19;

the clutch base a1 is provided with a handle connector a1-1, a handle connecting screw through hole a1-2, a reversing thread through hole a1-3, a first bolt groove a1-4, a second bolt groove a1-5, a third bolt through hole a1-6, a concave ring a1-7, a circular raised head a1-8 and a balance raised head a 1-9;

the first return spring a7 is sleeved on the bolt a4, the bolt a4 and the first return spring a7 are embedded in the first bolt groove a1-4 together, and the first bolt cover plate a11 covers the first bolt groove a1-4 and is fixed by screws, so that a first clutch structure is formed; the second reset spring a8 is sleeved on the bolt a5, the bolt a5 and the second reset spring a8 are embedded in a second bolt groove a1-5 together, and the second bolt cover plate a12 covers the second bolt groove a1-5 and is fixed by screws, so that a second clutch structure is formed; the third reset spring a9 is sleeved on the bolt a6, the small steel ball a14, the bolt a6 and the third reset spring a9 are sequentially installed in a third bolt through hole a1-6, a bolt covering piece a13 is provided with a bolt telescopic hole, the bolt covering piece a13 is covered on the third bolt through hole a1-6 and fixed by screws, and the bolt telescopic hole of the bolt covering piece a13 is aligned with the bolt a6 to form a third clutch structure; the driving spring a17, the two gaskets a18 and the fourth return spring a10 are sequentially sleeved on the push rod a16, the push plate a15 is provided with a long hole and a bending pin, the bending pin of the push plate a15 is sleeved on the push rod a16 and is embedded between the two gaskets a18, and a bolt driving structure is formed by the two pins;

the transmission piece a2 is a clutch and transmission structure piece of the mechanical clutch mechanism a, a through hole a2-1 is arranged in the middle of the transmission piece a2, a shifting block a2-2 is arranged on the front side, resetting feet a2-3 are arranged on two sides, two semicircular retaining rings a2-4 are arranged on the bottom surface, a2-1 through hole is sleeved on a circular raised head a1-8 of the clutch base a1, two semicircular retaining rings a2-4 are embedded in a concave ring a1-7 of the clutch base a1, and the upper and lower gaps of the two semicircular retaining rings a2-4 are respectively in clutch fit with the pins a4 and a5 of the first clutch structure and the second clutch structure;

the inner ring of the clutch bearing a19 is sleeved on the circular raised head a1-8 of the clutch base a1, and the outer ring of the clutch bearing a19 is matched with the through hole a2-1 of the transmission piece a 2; the reversing screw a3 is screwed on the reversing thread through hole a1-3 of the clutch base a 1.

Still further, the variable transmission mechanism b includes three gears: the functional gear b1, the transition gear b2 and the output gear b3 are arranged, the functional gear b1 is provided with a limiting through hole b1-1, an arc-shaped through groove b1-2 and an incomplete circular tooth b1-3, two shifting heads (b1-4 and b1-5) are arranged on the left and right, the transition gear b2 is provided with a complete circular tooth b2-1 and two limiting feet b2-2, the main body of the output gear b3 is a round rod, the complete circular tooth b3-1 is arranged outside, and a square through hole b3-2 is arranged inside;

the limiting through hole b1-1 of the functional tooth sheet b1 is sleeved on an outer ring of a clutch bearing a19 of the mechanical clutch mechanism a, the arc-shaped through groove b1-2 is matched with a shifting head a2-2 of a transmission piece a2 of the mechanical clutch mechanism a, incomplete circular teeth b1-3 are meshed with complete circular teeth b2-1 of the transition gear b2, and complete circular teeth b2-1 of the transition gear b2 are meshed with complete circular teeth b3-1 of the output gear b 3.

Furthermore, a bottom shell c of the device is provided with a clutch base position through hole c-1, an output gear position through hole c-2, a conversion gear position hole c-3, a torsion spring convex ring c-4, two torsion spring foot flanges c-5, a handle limiting lug c-6, two steel column pits c-7 and a steel column groove c-8, and further provided with a push plate limiting screw hole c-9, a push rod limiting frame c-10 and a push rod position through hole c-11;

the bearing e is embedded in the through hole c-1 at the position of the clutch base, the torsion spring g is sleeved on the convex ring c-4 of the torsion spring, two feet of the torsion spring g are respectively clamped on the flanges c-5 of the two torsion spring feet, the bearing j is embedded in the hole c-3 at the position of the conversion gear, the shaft sleeve h is embedded in the through hole c-2 at the position of the output gear, the handle connector a1-1 of the clutch base a1 is embedded in the inner ring of the bearing e, the balance raised head a1-9 of the clutch base a1 and the reversing screw a3 which is screwed on the clutch base a1 are respectively matched with the two feet of the torsion spring g, the two reset feet a2-3 of the driving piece a2 are respectively matched with the two feet of the torsion spring g, the third bolt through hole a1-6 of the third clutch structure is aligned with a steel column pit c-7, and the small steel ball a14 of the third clutch structure falls into the corresponding steel column pit c-7, one end of a push rod a16 of the plug pin driving structure is sleeved in a push rod position through hole c-11, the other head of the push rod a16 of the plug pin driving structure is arranged on a push rod limiting frame c-10, and then a screw penetrates through an elongated hole a15-1 of a push plate a15 and is screwed in a push plate limiting screw hole c-9, so that the push rod a16, the push plate a15 and the like of the plug pin driving structure are stacked on a bottom shell c of the device;

the hand limiting bump c-6 is used for limiting the downward pressing of the handle, and the steel column groove c-8 is used for reversing the handle.

One limiting pin b2-2 of the transition gear b2 is embedded in the inner ring of the bearing j, the output gear b3 is embedded in the inner ring of the shaft sleeve h, the inner ring of the bearing k is sleeved on the other limiting pin b2-2 of the transition gear b2, and the inner ring of the shaft sleeve i is sleeved on the output gear b 3.

Furthermore, the upper cover d of the device is provided with a clutch base position through hole d-1, an output gear position through hole d-2 and a conversion gear position hole d-3;

the device upper cover is covered on the device bottom shell c, a clutch base position through hole d-1 is covered and embedded on the outer ring of the clutch bearing a19 and is aligned with a handle connecting screw through hole a1-2 of the clutch base a1, an output gear position through hole d-2 is embedded on the outer ring of the shaft sleeve i and is aligned with a square through hole b3-2 of the output gear b3, and a conversion gear position hole d-3 is covered and embedded on the outer ring of the bearing k.

In this embodiment, the handle 2 and the handle connector a1-1 of the clutch base a1 are directly connected and fixed by screws, so that the handle 2 and the clutch base a1 are in a direct linkage relationship.

The mechanical clutch mechanism a comprises three clutch structures and a bolt driving structure, the bolt driving structure is mainly used for enabling the driving of the mechanical lock cylinder 4 to be changed from hard driving to soft driving, the bolt driving structure is composed of a push rod a16, a push plate a15, a driving spring a17, two gaskets a18 and a fourth reset spring a10, the push rod a of the mechanical lock cylinder 4 pushes the push rod a16 to move upwards, the push rod a16 pushes the driving spring a17 and the gaskets a18 to move upwards, and then the push plate a15 is pushed to move upwards, and in the ascending process, two situations occur: 1. the push plate a15 has no strong resistance, so the push plate a15 moves upwards smoothly, 2, the push plate a15 has strong resistance, at this time, the push plate a15 cannot move upwards, and the driving spring a17 is compressed and deformed, so the design has two advantages: 1. when the push plate a15 is subjected to strong resistance, rigid parts of the bolt driving structure cannot be deformed and damaged, and when the push plate a15 is subjected to strong resistance, although the push plate a15 cannot move upwards, the push plate a15 is always ready to be driven to move upwards;

the three clutch structures are essentially three reset bolt structures and are matched with a clutch base a1, a transmission piece a2, a functional toothed sheet b1 and a torsion spring g, the three clutch structures are respectively driven by a handle 2, a clutch motor device 3 and a mechanical lock cylinder 4, when the handle 2 is linked with the clutch base a1 to rotate, a small steel ball a14 of the third clutch structure rolls out of a steel column pit c-7 of a bottom shell c of the device and ejects out a bolt a6, the bolt a6 rotates along with the clutch base a1, a shifting head b1-4 or b1-5 of the functional toothed sheet b1 is shifted in a rotating direction to drive the shifting functional toothed sheet b1 to drive the whole variable-speed transmission mechanism b, and the third clutch structure is mainly applied to the on-handle to switch and lock functions; the other two clutch structures are respectively driven by a clutch motor device 3 and a mechanical lock cylinder 4, the clutch motor device 3 or the mechanical lock cylinder 4 (the mechanical lock cylinder 4 firstly pushes the bolt driving structure) pushes a bolt a4 or a5 assembled in a clutch base a1 to extend out, and then the bolt a4 or the bolt a5 is inserted between the upper gap and the lower gap of two semicircular retaining rings a2-4 of a transmission piece a2, so that the clutch base a1 and the transmission piece a2 are linked, when the handle 2 is linked with the clutch base a1 and linked with the transmission piece a2 to rotate, a shifting head a2-2 of the transmission piece a2 shifts an arc-shaped through groove b1-2 of a functional tooth sheet b1 to drive a shifting functional tooth sheet b1 to drive the whole variable speed transmission mechanism b, and the two clutch structures are mainly applied to the function of pressing down and unlocking the handle;

the function of the torsion spring g in the mechanical clutch mechanism a is not only to ensure that the clutch base a1 and the handle 2 are kept flat, but also to ensure that the clutch function of the clutch structure can be smoothly realized, two feet of the torsion spring g are respectively clamped on the flanges c-5 of the two torsion spring feet, so that the two feet of the torsion spring g are kept horizontal under the condition of no stress, the two feet of the torsion spring g are respectively matched with a balance raised head a1-9 of the clutch base a1 and a reversing screw a3 which is screwed on the clutch base a1, and are respectively matched with two resetting feet a2-3 of the transmission piece a2, so that the clutch base a1, the handle 2 and the transmission piece a2 are kept consistent under the matching of the torsion spring g, and further the upper and lower clearances of a4 or a5 which is assembled in the clutch base a1 and the two semicircular retaining rings a2-4 of the transmission piece a2 are kept right, thereby ensuring that the clutch base a1 and the transmission piece 2 can be smoothly separated from the transmission piece a2, And (6) mixing.

The mechanical clutch mechanism a also has a handle reversing function, a reversing screw a3 is screwed down from a clutch base a1, one side of the clutch base a1 is not limited by a torsion spring g, the clutch base a1 and the handle 2 can rotate 180 degrees in the handle rotating direction, and then the reversing screw a3 is screwed on the clutch base a1, so that the handle reversing function can be completed, wherein the clutch base a1 is symmetrical up and down in structure, and the whole mechanical clutch mechanism a is symmetrical left and right in function.

The speed change transmission mechanism b comprises three gears: the functional tooth sheet b1, the transition gear b2 and the output gear b3 are gear sets with rotation speed change and rotation transmission, the functional tooth sheet b1 is a special-shaped gear with 1/4 left and right teeth and provided with left and right shifting heads (b1-4 and b1-5) and an arc-shaped through groove b1-2, the left and right shifting heads (b1-4 and b1-5) of the functional tooth sheet b1 can be matched with a bolt of the third clutch mechanism to realize the speed change transmission of the gear set in one direction, the arc-shaped through groove b1-2 of the functional tooth sheet b1 can be matched with a shifting head a2-2 of the transmission piece a2, and the speed change transmission of the gear set in the other direction is realized under the condition that the first clutch mechanism or the second clutch mechanism is combined; output gear b3 is for being equipped with complete tooth outward, be equipped with the special-shaped gear of square hole in, and output gear b3 can insert lock core drive square bar 5, lock core drive square bar 5 is connected with the lock core that can drive the lock body, and output gear b3 drives under the drive of gear train the rotation of lock core drive square bar 5 and then the rotation of lock core to realize the flexible of spring bolt on the lock body.

The clutch and rotation process (setting the direction of the handle 2 to be left) of the embodiment is as follows:

when a user lifts the handle 2, the handle 2 drives the clutch base a1 to rotate clockwise, the small steel ball a14 rolls out of a steel column pit c-7 of the bottom shell c of the device and ejects the bolt a6, the bolt a6 rotates clockwise along with the clutch base a1, the bolt a6 stirs the functional tooth sheet b1 to further drive the whole variable-speed transmission mechanism b, and finally the output gear b3 drives the lock cylinder driving square rod 5 to complete the extension of the upper square tongue of the corresponding lock body; the process changes the bolt state of the corresponding lock body from the bolt extending and the bolt retracting into the bolt extending and the bolt extending, so as to realize the complete closing of the door lock; this is a very important functional requirement of the intelligent lock clutch device: the lock on handle function, as shown in fig. 12, is the state of the clutch actuator when the lock is on handle.

When the user releases the handle 2, the clutch base a1 and the transmission piece a2 rotate reversely under the action of the torsion spring g, and finally returns to the same level again under the action of the torsion spring g, the upper and lower gaps of the bolts a4 and a5 of the clutch base a1 and the two semicircular retaining rings a2-4 of the transmission piece a2 of the device are also kept opposite, thereby being ready for the separation and combination of the clutch base a1 and the transmission piece a2, simultaneously the shifting head a2-2 of the transmission piece a2 is abutted against the arc-shaped through groove b1-2 of the function tooth piece b1, being ready for the handle to be pressed down to unlock without clearance, in the process, the functional toothed plate b1 and the whole speed change transmission mechanism b do not rotate, the bolt a6 is in an extended state but no other parts are associated, and as the clutch base a1 returns to the horizontal state, the small steel ball a14 rolls into the steel column pit c-7 of the bottom shell c of the device again, and the bolt a6 retracts under the action of the third return spring a 9; in the process, the corresponding lock bolt state of the lock body is kept as the inclined bolt extends out and the dead bolt extends out; FIG. 13 shows the clutch actuator in the condition after the lock is closed on the handle and the handle is retracted.

When the electronic authentication of the intelligent lock passes, or a mechanical key is used as a standby unlocking mode to rotate the mechanical lock cylinder 4, the clutch motor device 3 or the mechanical lock cylinder 4 (the mechanical lock cylinder 4 pushes the bolt driving structure firstly) pushes the bolt a4 or a5 assembled in the clutch base a1 to extend, the bolt a4 or a5 is further inserted into the upper or lower gap of two semicircular retaining rings a2-4 of the transmission piece a2 to realize the axial linkage of the clutch base a1 and the transmission piece a2, at the moment, a user rotates the handle 2 reversely, the clutch base a1 is linked and the transmission piece a2 rotates reversely, the shifting head a2-2 of the transmission piece a2 reversely shifts the arc-shaped through groove b1-2 of the functional tooth piece b1 to further drive the whole speed change transmission mechanism b, and finally the output gear b3 drives the lock cylinder driving square rod 5 to complete the retraction of the upper tongue and the inclined tongue on the corresponding lock body, and in the process, the small steel ball a14 rolls out of a steel column c-7 of the bottom shell of the device, pin a6 extends but is not associated with other parts; in the process, the bolt state of the corresponding lock body is changed from the bolt extending and the bolt extending into bolt retracting and bolt retracting, so that the door lock is unlocked; fig. 14 shows the clutch transmission when the lock is unlocked by pressing down the handle.

When the user releases the handle 2, the clutch base a1 and the transmission piece a2 rotate smoothly under the action of the torsion spring g, and finally returns to the same level again under the action of the torsion spring g, the device is also kept opposite to the upper and lower clearances of the bolts a4 and a5 of the clutch base a1 and the two semicircular retaining rings a2-4 of the transmission piece a2 respectively, and is ready for the clutch base a1 and the transmission piece a2 to be disengaged and engaged again, in the process, the bolt a6 is in an extending state, the bolt a6 rotates along with the clutch base a1, simultaneously, the functional tooth sheet b1 and the whole speed change transmission mechanism b are stirred to rotate, but the bolt a6 only drives the speed change transmission mechanism b to make half of the stroke, the half stroke will assist the latch bolt of the corresponding lock body to extend, and as the clutch base a1 returns to the horizontal, the small steel ball a14 rolls into the steel column pit c-7 of the bottom case c of the device again, and the bolt a6 retracts under the action of the third return spring a 9; the process changes the bolt state of the corresponding lock body from bolt retraction and dead bolt retraction into bolt extension and dead bolt retraction; fig. 15 shows a state of the clutch transmission when the handle is returned after the handle is pressed down to unlock the lock.

The embodiments described in this specification are merely illustrative of implementations of the inventive concepts, which are intended for purposes of illustration only. The scope of the present invention should not be construed as being limited to the particular forms set forth in the examples, but rather as being defined by the claims and the equivalents thereof which can occur to those skilled in the art upon consideration of the present inventive concept.

Claims (6)

1. A clutch transmission device applied to an intelligent lock is characterized by comprising a mechanical clutch mechanism, a variable speed transmission mechanism, a device bottom shell and a device upper cover, wherein the mechanical clutch mechanism is directly connected with a handle outside an intelligent lock panel, and comprises three clutch structures which are respectively matched with a clutch motor device, a mechanical lock cylinder and the handle to control the connection and disconnection between the mechanical clutch mechanism and the variable speed transmission mechanism; the speed change transmission mechanism is matched with the mechanical clutch mechanism and the lock cylinder driving square rod to transmit the rotation of the handle to the lock cylinder driving square rod in a certain proportion in a speed change manner; the clutch transmission is arranged on the device bottom shell and the device upper cover;

the mechanical clutch mechanism comprises three clutch structures and a bolt driving structure, and comprises a clutch base, a transmission part, a reversing screw, a first bolt, a second bolt, a third bolt, a first reset spring, a second reset spring, a third reset spring, a fourth reset spring, a first bolt cover plate, a second bolt cover plate, a bolt covering part, steel balls, a push plate, a push rod, a driving spring, two gaskets and a clutch bearing;

the clutch base is provided with a handle connector, a handle connecting screw through hole, a reversing thread through hole, a first bolt groove, a second bolt groove, a third bolt through hole, a concave ring, a circular raised head and a balance raised head;

the first bolt and the first reset spring are embedded in the first bolt groove, the first bolt cover plate covers the first bolt groove and is fixed by screws, and a first clutch structure is formed by the first bolt cover plate and the first bolt cover plate; the second bolt and the second reset spring are embedded in a second bolt groove, and the second bolt cover plate covers the second bolt groove and is fixed by screws, so that a second clutch structure is formed; the third reset spring is sleeved on the third bolt, the steel ball, the third bolt and the third reset spring are sequentially arranged in a third bolt through hole, a bolt telescopic hole is formed in the bolt covering piece, the bolt covering piece is covered on the third bolt through hole and fixed through screws, and the bolt telescopic hole of the bolt covering piece is aligned with the third bolt to form a third clutch structure; the driving spring, the two gaskets and the fourth return spring are sequentially sleeved on the push rod, the push plate is provided with a long hole and a bending foot, the bending foot of the push plate is sleeved on the push rod and embedded between the two gaskets, and the long hole and the bending foot form a bolt driving structure;

the transmission part is a clutch and transmission structural part of the mechanical clutch mechanism, a through hole is formed in the middle of the transmission part, a shifting block is arranged on the front side of the transmission part, resetting feet are arranged on two sides of the transmission part, two semicircular retaining rings are arranged on the bottom surface of the transmission part, the through hole is sleeved on the circular convex head of the clutch base, the two semicircular retaining rings are embedded in the concave ring of the clutch base, and the upper and lower gaps of the two semicircular retaining rings are respectively in separation and combination fit with the first bolt and the second bolt of the first clutch structure and the second clutch structure;

the inner ring of the clutch bearing is sleeved on the circular convex head of the clutch base, and the outer ring of the clutch bearing is matched with the through hole of the transmission piece; the reversing screw is screwed on the reversing thread through hole of the clutch base.

2. The clutch transmission device applied to the intelligent lock according to claim 1, wherein the variable speed transmission mechanism comprises three gears which are respectively a function gear, a transition gear and an output gear, the function gear is provided with a limiting through hole, an arc-shaped through groove and an incomplete circular tooth, two shifting blocks are arranged on the left and the right of the function gear, the transition gear is provided with an complete circular tooth and two limiting feet, the output gear is a round rod, the complete circular tooth is arranged outside the output gear, and a square through hole is arranged inside the output gear;

the limiting through hole of the functional gear is sleeved on the outer ring of the clutch bearing of the mechanical clutch mechanism, the arc-shaped through groove is matched with the shifting head of the transmission piece of the mechanical clutch mechanism, incomplete circular teeth are meshed with complete circular teeth of the transition gear, and the complete circular teeth of the transition gear are meshed with the complete circular teeth of the output gear.

3. The clutch transmission device applied to the intelligent lock as claimed in claim 2, wherein a steel column pit is formed in a bottom shell of the device, a third bolt through hole of the third clutch structure is aligned with the steel column pit, and a steel ball of the third clutch structure falls into the corresponding steel column pit.

4. The clutch transmission device applied to the intelligent lock as claimed in claim 3, wherein the device bottom case is further provided with a clutch base position through hole, an output gear position through hole, a conversion gear position hole, a torsion spring convex ring, two torsion spring foot flanges, a push plate limiting screw hole, a push rod limiting frame and a push rod position through hole;

the clutch transmission device also comprises a torsion spring, a first bearing, a second bearing, a third bearing, a first shaft sleeve and a second shaft sleeve, wherein the first bearing is embedded in the through hole at the position of the clutch base, the torsion spring is sleeved on the torsion spring convex ring, two feet of the torsion spring are respectively clamped on the blocking edges of the two torsion spring feet, the second bearing is embedded in the position hole of the conversion gear, the first shaft sleeve is embedded in the through hole at the position of the output gear, a handle connector of the clutch base is embedded in the inner ring of the first bearing, a balance convex head of the clutch base and a reversing screw which is rotatably arranged on the clutch base are respectively matched with the two feet of the torsion spring, two reset feet of the transmission piece are respectively matched with the two feet of the torsion spring, one end of a push rod of the bolt driving structure is sleeved in the through hole at the position of the push rod, the other head of the push rod of the bolt driving structure is arranged on the push rod limiting frame, then, a screw penetrates through the elongated hole of the push plate and is screwed on the limit screw hole of the push plate, so that the push rod and the push plate of the plug pin driving structure are stacked on the bottom shell of the device;

one limiting pin of the transition gear is embedded in the inner ring of the second bearing, the output gear is embedded in the inner ring of the first shaft sleeve, the inner ring of the third bearing is sleeved on the other limiting pin of the transition gear, and the inner ring of the second shaft sleeve is sleeved on the output gear.

5. The clutch transmission device applied to the intelligent lock as claimed in claim 4, wherein the upper cover of the device is provided with a clutch base position through hole, an output gear position through hole and a conversion gear position hole;

the device upper cover is installed on the device bottom shell, a clutch base position through hole is embedded on an outer ring of a clutch bearing of the mechanical clutch mechanism, an output gear position through hole is embedded on an outer ring of the second shaft sleeve, and a conversion gear position hole cover is embedded on an outer ring of the third bearing.

6. The clutch transmission device applied to the intelligent lock as claimed in claim 1, wherein the handle and the handle connector of the clutch base are directly connected and fixed through screws, so that the handle and the clutch base are in a direct linkage relationship.

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