Intelligent door handle

Abstract

The application discloses a kind of intelligent door handle, comprising: the inside door handle and the outside door handle of being installed in the both sides of door, respectively constitute inside door handle and the rotatable outside door handle of outside door handle part Rotatable inside door latch and rotatable outside door latch further include clutch device, for inside door latch and outside door latch are locked or unlocked in predetermined position clutch device, for detecting the position or state of inside door latch or / and outside door latch door latch detection device, and for according to user instruction and door latch state control clutch device action circuit control unit.The intelligent door handle of the application is equipped with controllable rotating door latch, so that it has door lock function, not only can replace traditional door handle, realize the function of door handle, and also has door lock function, and can realize intelligent control, door opening record, sound and light alarm Intelligent function, such as can replace existing intelligent glass door lock or glass door access control device.The intelligent door handle of the application is simple to install, beautiful and practical, and has strong adaptability, and is especially suitable for commercial office space glass door.

Description

TECHNICAL FIELD

[0001] The present application relates to the mechatronic technology applied to door lock, in particular to a smart door handle device with intelligent electric control lock function for glass door. BACKGROUND

[0002] As the functional auxiliary equipment of glass door, there are generally handle or pull handle, mechanical key lock or electrically controllable access control device, etc.

[0003] However, the door handle can only push / pull the door, and cannot lock the door, and needs to additionally install access control device or mechanical key lock or glass door intelligent lock to lock the door.

[0004] The access control device needs to be connected with 220V circuit, and needs to be installed by professional construction personnel, which is troublesome, and many indoor glass doors may not have reserved positions for 220V circuit wiring, resulting in no installation or many additional costs. In addition, when power failure occurs, the access control system must be in a failure state for safety reasons, at which time the door lock is in an open state, which exists a security risk due to power failure.

[0005] The mechanical key lock is easy to be copied and lost or forgotten to carry without knowing, etc.

[0006] The existing intelligent lock for glass door has the following problems in actual installation and use: whether it is a double door or a single door, most of the existing intelligent glass door locks generally adopt a "concave" structure, which is fixed on the glass door by a back adhesive, and a space for accommodating the bottom structure of the "concave" structure is necessarily left in the door gap, and the lock cylinder is also used to insert the lock tongue into the lock tongue slot structure to lock the door. Such structure has high requirements for the gap distance between the installed door leaves, and the door gap is too narrow to be installed, and the door gap is too wide to be easily forced out of the lock tongue slot under the condition of pushing the door hard, the application range is greatly limited, there is a security risk, and it is not beautiful. SUMMARY

[0007] In view of the above problems existing in the prior art, the present application combines the functions and concepts of door handle and door lock, and provides a new type of smart door handle which replaces the door handle, door lock and access control device.

[0008] The embodiment of the present application solves the above technical problems by constructing an intelligent door handle, which comprises an inner door handle installed on the inner side of a door, an outer door handle installed on the outer side of the door and opposite to the inner door handle, characterized in that it further comprises an inner door latch constituting a part of the inner door handle and pivotable to a certain angle with the inner door handle, an outer door latch constituting a part of the outer door handle and linked with the inner door latch through the same pivot, a clutching device for locking or unlocking the inner door latch and the outer door latch at a predetermined position, a door latch detecting device for detecting the position or state of the inner door latch or the outer door latch, a knob unlocking device installed on the inner door handle for rotating to make the clutching device exit the locking state, and a circuit control unit for receiving user input or / and signals detected by the door latch detecting device to make the clutching device perform corresponding clutching actions or / and inform the user.

[0009] In the intelligent door handle according to the embodiment of the present application, the certain angle comprises a range of 0 degrees to 90 degrees, and the predetermined position comprises positions corresponding to 0 degrees and 90 degrees between the inner door latch, the outer door latch and the inner door handle and the outer door handle.

[0010] In the intelligent door handle according to the embodiment of the present application, the length of the inner door latch or / and the outer door latch is at least greater than the straight line between the door latch pivot and the door edge, and the length of the inner door latch or / and the outer door latch is less than twice the length of the straight line between the door latch pivot and the door edge.

[0011] In the intelligent door handle according to the embodiment of the present application, the pivot comprises a hollow square or circular steel pipe coaxially rotating with the inner door latch and the outer door latch, and the inner / outer door latch is linked through the hollow square or circular steel pipe.

[0012] In the intelligent door handle according to the embodiment of the present application, the clutching device comprises a clutching rotor coaxially linked with the hollow square or circular steel pipe, a clutching slot arranged on the outer edge of the clutching rotor, a clutching bolt for clamping the clutching slot, a clutching bolt spring for applying force to the clutching bolt, and a motor for making the clutching bolt spring release to let the clutching bolt enter the clutching slot in forward rotation and making the clutching bolt spring be compressed to let the clutching bolt exit the clutching slot in reverse rotation.

[0013] In the intelligent door handle according to the embodiment of the present application, the knob unlocking device comprises a mechanical knob installed on the inner door handle, an inner cam coaxially linked with the mechanical knob and capable of pushing the clutching bolt out of the clutching slot after rotation, and a mechanical knob reset torsional spring arranged between the first mechanical knob reset torsional spring fixed column and the second mechanical knob reset torsional spring fixed column and acting on the inner cam to make it return to normal state.

[0014] In the smart door handle according to the embodiment of the present application, the door latch detection device comprises sensors arranged on the outer door latch or the inner door latch and / or sensors arranged on the outer door handle or the inner door handle adjacent to the surface of the corresponding outer door latch or inner door latch, so that when the outer door latch or the inner door latch rotates, at least one of the sensors or a combination thereof generates different signals, thereby feeding back the real-time position of the door latch to the circuit control unit through different signal changes and combination changes.

[0015] In the smart door handle according to the embodiment of the present application, the sensors of the door latch detection device comprise first and second magnets arranged on the outer door latch adjacent to the surface of the outer door handle and on both sides of the pivot, and a third magnet arranged on the other end of the door latch, and first and second Hall elements arranged on the outer door handle adjacent to the surface of the outer door latch and arranged high and low, so that the three magnets rotating with the door latch cause the first and second Hall elements to generate different signals.

[0016] In the smart door handle according to the embodiment of the present application, the circuit control unit comprises a main control circuit mainboard (22), the input end of the main control circuit mainboard (22) is directly or indirectly connected to the sensors in the door latch detection device, and the output end of the main control circuit mainboard is directly or indirectly connected to and drives the motor in the clutch device.

[0017] In the smart door handle according to the embodiment of the present application, the circuit control unit further comprises a touch keypad, a fingerprint / finger vein collector and a USB temporary power supply interface mounted on the outer door handle and connected to the main control circuit mainboard.

[0018] In the smart door handle according to the embodiment of the present application, the circuit control unit further comprises an audible and light prompt module connected to the main control circuit mainboard. When the door latch detection device detects that the outer door latch reaches the preset door closing position, the main control circuit mainboard sends a signal to the motor to make the clutch bolt of the clutch device block the clutch rotor to ensure that the outer door latch is in a locked state and cannot be rotated; when the door latch detection device detects that the outer door latch does not reach the preset door closing position, the main control circuit mainboard sends a signal to the audible and light prompt module to remind that the door latch is not closed.

[0019] In the smart door handle according to the embodiment of the present application, the circuit control unit further comprises a communication module on the main control circuit mainboard for connecting smart devices or smart phones through Bluetooth or WIFI wireless short-range communication.

[0020] In the smart door handle according to the embodiment of the present application, the circuit control unit further comprises circuit lines passing through the hollow square or circular steel pipe for connecting the main control circuit mainboard mounted on the outer door handle and the battery box and the motor mounted on the inner door handle.

[0021] In the intelligent door handle according to the embodiment of the application, the outer door handle or the inner door handle respectively comprises two sets of handle fixing devices for mounting the door handle end face on the outer side or the inner side of the door and being pulled tight through the hollow bolt passing through the door hole, and the pivot hollow square or circular steel pipe passes through the middle of the hollow bolt and passes through the two handle fixing devices.

[0022] In the intelligent door handle according to the embodiment of the application, the outer door handle or the inner door handle is vertically installed in a direction and is divided into three sections of upper, middle and lower sections, wherein the middle section is a hand-holding part, and the upper or lower section is a door latch part, and the door latch part of the outer door handle and the inner door handle is respectively provided with an outer door latch and an inner door latch.

[0023] The intelligent door handle of the application can directly replace or substitute the existing handle on the door, without the need for special construction personnel and external circuit, and only needs simple tools (such as a screwdriver) to complete the installation or replacement.

[0024] The intelligent door handle of the application adopts a brand-new door latching concept, replaces the door locking mode of inserting a lock tongue into a lock tongue slot of the existing door lock, cancels the traditional lock body, and directly rotates the door latch by the user, so that the door is locked in a physical structure mode, effectively solving the problems of the size of the door gap and the misalignment of the lock tongue of the existing intelligent glass door lock.

[0025] The intelligent door handle provided by the application has the functions of Bluetooth or WIFI communication, communication between the hardware of the product and the small program or APP on the smart phone through the communication protocol, identity recognition, unlocking personnel permission management, unlocking time and identity recording, temporary password sending, and unlocking record inquiry.

[0026] The intelligent door handle of the application is provided with a controllable rotating door latch, so that it has the function of a door lock, can replace the traditional door handle, has the function of a door lock while having the function of a door handle, and can be intelligently controlled, record opening, sound and light alarm, and other intelligent functions, and can replace the existing intelligent glass door lock or glass door access control device. The intelligent door handle of the application is simple to install, beautiful and practical, has strong adaptability, and is particularly suitable for glass doors in commercial office spaces. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a schematic view of a glass double door with the intelligent door handle of the first embodiment of the application installed and being normally open;

[0028] Figure 2 is a schematic view of a glass double door with the intelligent door handle of the first embodiment of the application installed and being locked;

[0029] Figure 3 is a schematic view of a glass double door with the intelligent door handle of another embodiment of the application installed and being normally open;

[0030] Figure 4 is a schematic diagram of a glass double door with the smart door handle of another embodiment of the present application when the door is locked;

[0031] Figure 5 is a schematic diagram of the connection of the inner door latch and the outer door latch by a hollow square / circular steel tube in an embodiment of the present application;

[0032] Figure 6 is a schematic diagram of the structure of the clutch device in a locked state of the door in an embodiment of the present application;

[0033] Figure 7 is a schematic diagram of the structure of the clutch device in an open state of the door in an embodiment of the present application;

[0034] Figure 8 is a schematic diagram of the position cooperation of the knob unlocking device and the clutch device in an embodiment of the present application;

[0035] Figure 9 is a schematic diagram of the specific structure of the knob unlocking device in an embodiment of the present application;

[0036] Figure 10 is a schematic diagram of the door latch detection device in an embodiment of the present application;

[0037] Figure 11 is a schematic diagram of the structure of the relevant circuit part in an embodiment of the present application;

[0038] Figure 12 is a logic block diagram of the working of the circuit control unit in an embodiment of the present application;

[0039] Figure 13 is an exploded schematic diagram of the structure of the installation of the inner and outer handles on the door in an embodiment of the present application.

[0040] The following is a uniform explanation of the labels in the figures: 1, outer door handle; 2, fingerprint / finger vein collector; 3, touch keypad; 4, outer door latch; 5, door; 6, hollow square / circular steel tube; 7, inner door handle; 8, inner door latch; 9, clutch rotor; 10, clutch bolt; 11, clutch bolt spring; 12, motor; 13, battery box; 14, clutch slot; 15, mechanical knob; 151, mechanical knob reset torsional spring; 152, mechanical knob inner cam; 153, first mechanical knob reset torsional spring fixing column; 154, second mechanical knob reset torsional spring fixing column; 16, first Hall element; 17, second Hall element; 18, first magnet; 19, second magnet; 20, third magnet; 21, circuit line; 22, main control circuit mainboard; 23, hollow bolt; 24, outer cross tube; 25, outer gasket; 26, inner gasket; 27, nut; 28, screw; 29, USB temporary power supply interface DETAILED DESCRIPTION

[0041] For the purpose of promoting the understanding of the present application, embodiments thereof will be more fully described in the following with reference to the attached drawings.

[0042] The accompanying drawings, which are included to provide a further understanding of the present application, illustrate embodiments of the present application and together with the description given below, serve to explain the principles of the present application.

[0043] On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical solutions of the present application, and are not limitations of the technical solutions of the present application. The technical features in the embodiments of the present application and the embodiments can be combined with each other without conflict.

[0044] Figure 1 and Figure 2 are respectively the scene of a double glass door with an intelligent door handle of an embodiment of the present application installed, and the state schematic diagram when opening and locking the door. From Figure 1 it can be seen that the two sides of the glass door are respectively provided with an inner door handle 7 (upper and lower sections) and an outer door handle 1 (upper and lower sections).

[0045] Figure 1 and Figure 2 show that each inner door handle is divided into upper and lower sections, and each outer door handle is also divided into upper and lower sections, wherein the lower section handle and the upper section handle together serve as the handle of the inner glass door or the outer glass door. Since the handle is divided into two sections, within a certain range, the segmented structure of the door handle of the present embodiment has greater flexibility in the spacing of the handle installation hole.

[0046] In the first embodiment of the present application shown in Figure 1 and Figure 2 , the segmented handle is installed or replaced on the existing glass door, which has better adaptability. Since the improvement of the present application mainly acts on the upper section handle, in the present specification, the outer door handle and the inner door handle both refer to the upper section outer door handle and the upper section inner door handle. However, in special scenarios, it is also applicable to the lower section outer door handle and the lower section inner door handle.

[0047] In the second embodiment of the present application shown in Figure 3 and Figure 4In another embodiment of the application, the inner handle and the outer handle are not segmented structures but are integral structures. In a glass door, the two sides of the glass door each have an integral inner door handle and an integral outer door handle. The integral handle is more similar to a common door handle in appearance and installation method, but the handle in this form has certain size requirements for the hole spacing on the glass door for installation or replacement. Since the improvement of the application mainly acts on the upper handle, the intelligent door handle of the application includes both segmented and non-segmented implementation modes if not otherwise specified in the description.

[0048] As shown in Figure 1 and Figure 3 , the inner door latch 8 and the outer door latch 4 are simultaneously kept at a 0-degree angle with the inner and outer handles, allowing the two glass doors to be freely opened and closed. At this time, the door is in a normally open state, and the intelligent door handle of the present embodiment can be used as a common door handle to operate the sliding door.

[0049] As shown in Figure 2 and Figure 4 , the inner door handle 7 is installed on the inner side of the glass door, and the outer door handle 1 is installed on the outer side of the glass door opposite the inner door handle 7. If it is desired to lock the glass door, the inner door latch 8 or the outer door latch 4 can be rotated to a horizontal position. The inner door latch 8 constitutes part of the inner handle 7 and can be pivoted to a 90-degree position with the inner door handle. Similarly, the outer door latch 4 constitutes part of the outer handle 1 and is pivoted with the inner door latch 8. In the figures, the door latches are all rotated towards the middle of the two doors; because the inner door latch 8 of the inner handle 7 and the outer door latch 4 of the outer handle 1 are rotated 90 degrees, the two doors are clamped by the door latches and cannot be pushed or pulled. Because the inner door latch 8 installed on the inner handle and the outer door latch 4 installed on the outer handle 1 are coaxially rotated with the square steel 6, the length of the door latches is greater than the straight-line distance between the handle and the door gap and exceeds a certain length, that is, the length of the inner / outer door latch is at least greater than the length of the door latch pivot distance from the door edge and less than twice the length of the door latch pivot distance from the door edge, which ensures that the door latches are normally rotated and safely and effectively locked.

[0050] The application uses a manually rotated door latch to replace the electrically retractable lock tongue of the prior art intelligent lock, so the intelligent door handle of the application has lower power consumption and is more environmentally friendly than the prior art intelligent lock, which uses a common alkaline dry battery as a power supply.

[0051] Figure 5is a schematic diagram of the hollow square steel 6 connecting between the inner door latch 8 and the outer door latch 4 in the embodiment of the present application. Among them, the inner door latch 8 on the inner door handle 7 and the outer door latch 4 on the outer door handle 1 are connected by the hollow square steel 6 to realize coaxial synchronous rotation, that is, the square steel 6 passes through the glass door to connect the door latches on both sides. The outer door latch 4 rotates, which can drive the inner door latch 8 to rotate through the square steel 6. Similarly, the inner door latch 8 rotates, which can drive the outer door latch 4 to rotate through the square steel 6, so that the door latches on both sides of the glass door can be rotated to open and close the door from the inside and outside. When the door is in the open state, the door latches and the handle form a 0-degree angle, as shown in Figure 1 and Figure 3 When the door is locked by the door latches, the door latches and the handle form a 90-degree angle, as shown in Figure 2 and Figure 4 .

[0052] As shown in Figure 5 , the outer handle also has a touch keyboard 3 and a fingerprint or finger vein collector 2.

[0053] Figure 6 and Figure 7 respectively show the clutch device in the locked and unlocked states of the door in the embodiment of the present application. In the intelligent door handle according to the embodiment of the present application, the clutch device is used to lock or unlock the inner door latch and the outer door latch at a predetermined position. The clutch device includes: ① a clutch rotor 9 coaxially linked with the door latch pivot, with a square hole in the middle for coupling with the square steel 6, so that the square steel 6 can be rotated by the rotation of the clutch rotor 9 to further rotate the inner and outer door latches, ② two clutch clamping grooves 14 on the outer edge of the clutch rotor 9, ③ a clutch latch 10 that can enter and exit and is clamped in the clutch clamping groove after entering, the clutch latch 10 and the clutch clamping groove 14 cooperate to lock or unlock the clutch rotor 9; ④ a clutch latch spring 11 for applying force to the clutch latch, which functions to insert or withdraw the clutch latch 10 into or out of the clutch clamping groove 14 by the extension and contraction force of the spring itself; ⑤ a motor 12, which, when rotating in one direction, expands the clutch latch spring 11 to push the clutch latch 10 into the clutch clamping groove 14 and engage it, and when rotating in the other direction, compresses the clutch latch spring 11 to pull out the clutch latch 10 engaged in the clutch clamping groove 14.

[0054] In other embodiments of the present application, the motor can also use other electromagnetic devices that can realize the extension and retraction of the clutch latch.

[0055] Figure 6 is a schematic diagram of the clutch device in the locked state, in which the clutch latch 10 is inserted into the clutch clamping groove 14, at this time the clutch rotor 9 cannot rotate, the square steel 6 also cannot rotate, the door latches remain in a 90-degree state with the door handle and cannot rotate, and the door is locked, as shown in Figure 2 and Figure 4 state.

[0056] Figure 7 is a schematic diagram of the clutch device in the unlocked state, in which the clutch bolt 10 is not inserted into the clutch slot 14, and the clutch rotor 9, the square steel 6 and the door latch can rotate, i.e. the door is in an openable state.

[0057] Figure 8 A knob unlocking device for mechanically opening the door from the inside in the embodiment of the present application is shown, which is used to manually unlock the door from the inside and is independent of the circuit control unit. The knob unlocking device comprises a mechanical knob 15 for manual operation by the user, a mechanical knob return torsion spring 151 mounted on the rotating shaft of the mechanical knob, a mechanical knob inner cam 152 driven to rotate by the mechanical knob and acting on the clutch bolt, a first mechanical knob return torsion spring fixing column 153 and a second mechanical knob return torsion spring fixing column 154 for mounting the mechanical knob torsion spring.

[0058] As shown in Figure 9 , the knob unlocking device is mounted on the inside door handle 7 with the inside door latch 8 above the clutch device, and manual rotation of the mechanical knob 15 can make the clutch bolt 10 exit the clutch slot 14, release the locking state of the clutch device and exit the rotation restriction on the door latch.

[0059] The present application locks the door by the door latch, and it is necessary to determine whether the door latch is rotated to the horizontal horizontal position, because if the user does not rotate the door latch to the specified position when locking the door, the clutch bolt 10 cannot be accurately inserted into the clutch slot 14 to lock the clutch device, and an unsafe condition that the door latch is movable but the user does not know will occur.

[0060] In the embodiment of the present application, the specified position is the vertical position with an included angle of 0 degrees between the door latch and the handle and the horizontal horizontal position with an included angle of 90 degrees.

[0061] Therefore, in the embodiment of the present application, the door latch position needs to be detected by the door latch detection device.

[0062] As shown in Figure 10 , the door latch detection device of the embodiment of the present application comprises a first magnet 18 and a second magnet 19 mounted on both sides near the periphery of the pivot of the outside door latch and a third magnet 20 at the other end of the outside door latch, two Hall elements comprise a first Hall element 16 and a second Hall element 17 mounted on the main control circuit board and arranged high and low on the surface adjacent to the outside door latch, and the three magnets make the two Hall elements produce three different signal combinations to represent the door latch position state during rotation with the door latch.

[0063] State 1: locked state, the door latch is perpendicular to the door handle, i.e. in the horizontal horizontal position, denoted as point L.

[0064] State 2: unlocked state, the door latch is on the same axis as the door handle, i.e. in the vertical position, denoted as point U.

[0065] State 3: intermediate state, the door latch is in a state on the non-L point, non-U point.

[0066] (1) When the door latch is in state 3, the main control circuit board 22 will periodically obtain the combined signal of the Hall element, and if it exceeds a preset value (denoted as T1), the main control circuit board 22 will send a signal to the sound and light signal module to issue a sound and light signal to inform the user that the door latch cannot be in state 3 for a long time.

[0067] (2) When the door latch is in state 3, if the user continues to rotate the door latch to the L point, the main control circuit board 22 senses that the door latch is in state 1 through the combined signal of the Hall element, and then the main control circuit board 22 sends a signal to the motor 12 to drive the clutch device to lock. After locking, the main control circuit board 22 periodically obtains the combined signal of the Hall element within a preset value (denoted as T2). If the state of the door latch remains in state 1 without change, the main control circuit board 22 determines that the user has locked the door.

[0068] (3) When the door latch is in state 3, if the user continues to rotate the door latch to the U point, the main control circuit board 22 senses that the door latch is in state 2 through the combined signal of the Hall element, and then the main control circuit board 22 will periodically obtain the combined signal of the Hall element within a preset value (denoted as T3). If the state of the door latch remains in state 2 without change, the main control circuit board 22 determines that the user has set the door to the always-open state.

[0069] Figure 11 is used to illustrate the structure of the circuit part in the embodiment of the application, as shown in Figure 11 The outer door handle 1 is provided with a fingerprint / finger vein collector 2, and a touch keyboard 3 is arranged above the fingerprint / finger vein collector 2. The outer door handle 1 is provided with a rotatable outer door latch 4, and the outer door handle 1 is further provided with a main control circuit board 22. A square steel 6 passes through a glass door 5 and is coupled with an inner door latch 8 on an inner door handle 7 and the outer door latch 4 on the outer door handle 1, so as to realize coaxial and synchronous rotation of the inner and outer door latches and the square steel 6. The circuit line 21 of the main control circuit board 22 in the outer door handle 1 passes through the hollow square steel 6 and is connected to a battery box 13 and a motor 12 on the inner door handle 7.

[0070] Figure 12The working logic block diagram of the circuit control unit of the embodiment of the present application is given. The main control circuit mainboard 22 in the embodiment of the present application is used for receiving the instructions sent by the user through the fingerprint / finger vein collector 2 or the touch type key board 3 or the small program or the APP and / or according to the detection signal of the door latch detection device, to make the clutch device execute corresponding actions. Specifically, the circuit control unit involves: ① the first Hall element 16 and the second Hall element 17 in the door latch detection device, which provide sensing signals to the main control circuit mainboard 22; ② the touch type key board 3 installed on the outer door handle 1, which provides key input signals to the main control circuit mainboard 22; ③ the fingerprint / finger vein collector 2 installed on the outer door handle 1, which provides the collected user biological information to the main control circuit mainboard 22; ④ the indicating lamp for reminding the user, which is controlled by the output end of the main control circuit mainboard 22; ⑤ the loudspeaker for reminding the user, which is controlled by the output end of the main control circuit mainboard 22; ⑥ the motor 12 for controlling the clutch device, which is controlled by the main control circuit mainboard 22; ⑦ the wireless communication module, which is built-in or externally connected to the main control circuit mainboard 22, so that the main control circuit mainboard of the present application has the Bluetooth / WIFI communication function, communicates with the mobile phone through the communication protocol, and the mobile phone has the small program / APP software matched with the present application, which can realize the time setting, the administrator setting, the user setting, the door opening signal giving, the door opening personnel identity recognition, the door opening personnel permission management, the temporary password, the door opening personnel door opening record function of the product of the present application.

[0071] Figure 13 The structure exploded view of the inner handle and the outer handle installed on the door in the embodiment of the present application is given, as shown in the figure, the hollow bolt 23 penetrates the glass door hole, one end is fixed with the outer door handle 1 through the threaded engagement mode of the outer cross pipe 24, the other end is fixed with the inner door handle 7 through the threaded engagement mode of the nut 27 and the inner cross pipe, the outer gasket 25 is padded on the contact surface of the outer cross pipe 24 and the glass door, the inner gasket 26 is padded on the contact surface of the inner cross pipe and the glass door, and the screw 28 fixes the inner cross pipe and the nut 27.

[0072] The user locking and opening process of the intelligent door handle of the present application is described below in combination with the above embodiment.

[0073] 1. In the locked state, open the door from outside: the user is outside the door, and the fingerprint / finger vein collector 2 on the outside handle is used to collect fingerprints, the touch keyboard 3 is used to input the password, or the mobile phone app connected by wireless mode is used to send the unlocking instruction. If the instruction is correct, the main control circuit board 22 receives the unlocking instruction and sends a signal to the motor 12, the motor 12 rotates to drive the clutch pin spring 11 to retract, so that the clutch pin 10 leaves the clutch slot 14, at this time the clutch rotor 9 can rotate 90 degrees left and right, the clutch device is unlocked, and the clutch device and the door latch are fixedly connected, the user manually rotates the outer door latch 4 to the vertical state (the inner and outer door latches are connected through square steel linkage), and the sound and light indication module on the outside handle 1 sends a sound and light signal to prompt the user that the door has been unlocked, and the door can be normally pushed or pulled open.

[0074] If the instruction is correct and the user does not rotate the door latch within a certain time, the indicator light will flash until the set period, for example, 3 seconds, ends, the clutch device restores the clutch pin 10 to the state of being pushed into the clutch slot 14, and the locked state of the door is maintained.

[0075] If the instruction is incorrect, the main control circuit board 22 sends a signal to the sound and light indication module to prompt the user that the input is incorrect.

[0076] 2. In the locked state, open the door from inside: the user rotates the mechanical knob 15 installed on the inside handle 7, the inner cam 152 of the mechanical knob pushes the clutch pin 10 out of the clutch slot 14, at this time the clutch rotor 9 can rotate 90 degrees left and right, and the user rotates the inner door latch to the vertical state (the inner and outer door latches are connected through square steel linkage), and the door can be normally pushed or pulled open.

[0077] The knob unlocking device is installed on the inside handle 7 and cannot be operated from the outside of the door to ensure safety, and the door latch must be rotated after the mechanical knob 15 is rotated without being released, because if the mechanical knob 15 is released, the mechanical knob 15 must be automatically rotated back under the action of the mechanical knob return spring 151, at this time the clutch pin spring 11 will automatically expand and push the clutch pin 10 into the clutch slot 14 to block the clutch rotor 9, so that the clutch device is in the locked state and the door latch cannot be rotated, avoiding the unsafe situation that the clutch device is in the unlocked state and the door latch is movable but the user does not know because the user forgets to manually reset the knob unlocking device.

[0078] 3. In the open state, lock the door from outside or from inside: when the door is in the normally open state, the door latch is in the vertical state. Rotate the door latch to the horizontal position, the clutch pin spring 11 automatically expands and pushes the clutch pin 10 into the clutch slot 14 to block the clutch rotor 9, the clutch device is in the locked state, and the door latch cannot be rotated, the inner and outer door latches block the other door or wall, and the door locking function is realized.

[0079] 4. While the user turns the latch to open and lock the door, the latch detection device starts to detect the latch position. If the user does not turn the latch to the predetermined position, the main control circuit board 22 will prompt the user through the sound and light prompt module based on the signal from the latch detection device.

[0080] 5. When the glass door is normally open, the latch is in a vertical position. The spring-loaded ball bearings installed at the corresponding positions at the bottom of the outer door handle 1 and the outer door latch 4 will fix the latch. When the door is pushed or pulled as a door handle in the normally open state, the latch will not rotate on its own.

[0081] 6. When the battery is dead, the user can use the USB temporary power interface 29 on the outer door handle 1 to provide power, and then replace the battery after opening the door.

[0082] It should be noted that the term "connected" or "linked" as used above includes not only directly connecting two entities, but also indirectly connecting them through other entities that have a beneficial improvement effect. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0083] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0084] The terms "first," "second," and other ordinal numbers used in this specification are used to describe various constituent elements, but these constituent elements are not limited by these terms. The purpose of using these terms is solely to distinguish one constituent element from others. For example, without departing from the scope of the invention, a first constituent element may be named a second constituent element, and similarly, a second constituent element may be named a first constituent element.

[0085] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. An intelligent door handle comprising: The invention relates to a door handle system, comprising: an inner door handle (7) arranged on the inner side of the door; an outer door handle (1) arranged on the outer side of the door opposite to the inner door handle (7); characterized in that it further comprises: an inner door latch (8) which is a part of the inner door handle (7) and can be pivoted to a certain angle with the inner door handle (7); an outer door latch (4) which is a part of the outer door handle (1) and is connected with the inner door latch (8) on the same pivot; a clutch device for locking or unlocking the inner door latch (8) and the outer door latch (4) at a predetermined position; a latch detection device for detecting the position or state of the inner door latch (8) or the outer door latch (4); a knob unlocking device arranged on the inner door handle (7) for rotating to make the clutch device exit the locking state; and a circuit control unit for receiving user input or / and signals detected by the latch detection device, making the clutch device perform corresponding clutch actions or / and informing the user. The clutch device comprises a clutch rotor (9) coaxially connected with the pivot, a clutch slot (14) arranged on the outer edge of the clutch rotor, a clutch latch (10) for clamping the clutch slot (14), a clutch latch spring (11) for applying force to the clutch latch (10), and a motor (12) for rotating to make the clutch latch spring (11) release and let the clutch latch (10) enter the clutch slot (14), and for reversing to make the clutch latch spring (11) compressed and let the clutch latch (10) exit the clutch slot (14). The knob unlocking device comprises a mechanical knob (15) arranged on the inner door handle (7), and an inner cam (152) connected with the mechanical knob (15) and can push the clutch latch (10) out of the clutch slot (14) after rotating.

2. The smart door handle of claim 1, wherein, The pivot comprises a hollow square or circular steel tube (6) which rotates coaxially with the inner door latch (8) and the outer door latch (4), and the inner / outer door latch is connected with the hollow square or circular steel tube (6).

3. The smart door handle of claim 1, wherein, The knob unlocking device further comprises a mechanical knob reset torsional spring (151) arranged between the first mechanical knob reset torsional spring fixing column (153) and the second mechanical knob reset torsional spring fixing column (154) to make the inner cam (152) return to normal.

4. The smart door handle of claim 1, wherein, The latch detection device comprises sensors arranged on the outer door latch or the inner door latch and / or sensors arranged on the outer door handle or the inner door handle adjacent to the corresponding outer door latch or inner door latch, so that when the outer door latch or the inner door latch rotates, at least one or a combination of the sensors generates different signals, thereby feeding back the real-time position of the latch to the circuit control unit through different signal changes and combination changes.

5. The smart door handle of claim 4, wherein, The latch detection device sensors comprise a first magnet (18) and a second magnet (19) arranged on the two sides of the pivot periphery on the surface adjacent to the outer door handle on the outer door latch, and a third magnet (20) arranged on the other end of the outer door latch, and a first Hall element (16) and a second Hall element (17) arranged in high and low on the surface adjacent to the outer door latch on the outer door handle, so that the three magnets (18-20) rotating with the latch make the first and second Hall elements (16, 17) generate different signals.

6. The smart door handle according to claim 3 or 5, characterized in that, The circuit control unit comprises a master control circuit mainboard (22), the input end of the master control circuit mainboard (22) is directly or indirectly connected with a sensor in the latch detection device, and the output end of the master control circuit mainboard (22) is directly or indirectly connected with and drives the motor (12) of the clutch device.

7. The smart door handle of claim 6, wherein, The circuit control unit further comprises a touch type key board (3) installed on the outer door handle (1), a fingerprint / finger vein collector (2), a USB temporary power supply interface (29) and a battery box (13) installed on the inner door handle (7) which are connected with the master control circuit mainboard (22), and a circuit line (21) connecting each component of the circuit control unit; the circuit control unit further comprises an audible and light prompt module integrated on the master control circuit mainboard (22).

8. The smart door handle of claim 7, wherein, The circuit control unit further comprises a communication module integrated on the master control circuit mainboard (22) for wirelessly connecting with a smart processing device or a smart phone in a short distance.

9. The smart door handle of claim 1, wherein, The outer door handle (1) or the inner door handle (7) respectively comprises two handle fixing devices and a hollow bolt (23) penetrating through a door hole and used for tensioning the inner and outer door handles.

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