General double cylinder intelligent door lock

Abstract

The utility model discloses a general type double lock core intelligence door lock, including inside panel and outer panel, the inside panel includes lock shell, control panel, lock tongue, lock tongue lever, inner lock core, inner flat strip, transmission lever, ratchet wheel, motor and transmission assembly, the outer panel includes panel shell, outer lock core and outer flat strip, the outer lock core sets up in the panel shell, through setting up inner lock core and outer lock core simultaneously, can open the lock in the door outside and in the door in the emergency situation no electricity or electronic failure, bring the convenience to use to cooperation setting transmission lever and ratchet wheel and lock tongue lever carry out linkage, and form the first coupling end and the second coupling end of the symmetrical setting of separation, and the tail end of outer flat strip can detachably with first coupling end or second coupling end and is inserted in the coupling, when left open door and right open door switching installation, only need to install inside panel upside down, need not to divide two sets of panel and distinguish left and right open, and the versatility is good, and the installation is very nimble and simple.

Description

Technical Field

[0001] This utility model relates to the field of smart locks, and in particular to a universal double-cylinder smart door lock. Background Technology

[0002] Smart locks are locks that differ from traditional mechanical locks, offering greater intelligence in user identification, security, and management. They combine computer technology, network technology, electronic technology, mechanical technology, modern hardware craftsmanship, and modern cryptography to achieve intelligent lock functionality. Smart locks support multiple unlocking methods, such as fingerprint, password, IC card, remote control via mobile app, Bluetooth key, and facial recognition. These diverse unlocking methods not only improve ease of use but also enhance security. Smart locks typically employ advanced encryption technology and anti-pry and anti-drill mechanical structures, significantly strengthening security. Furthermore, smart locks can record every unlocking operation, allowing users to review the data at any time and increasing the lock's security and controllability.

[0003] Current smart door locks typically consist of an inner panel and an outer panel. The outer panel is located directly in front of the inner panel, with the inner and outer panels positioned on the outside and inside of the door, respectively. In existing technology, most smart door locks use a single emergency lock cylinder, with only one inner lock cylinder located within the inner panel. There is no lock cylinder on the outside of the door, making it impossible to unlock from the outside in case of power failure or electronic malfunction, causing inconvenience. While some smart door locks now incorporate an outer lock cylinder on the outer panel, the left-opening and right-opening configurations cannot be achieved on the same panel. Two separate panels are required to accommodate different opening orientations, resulting in poor versatility and inflexible installation. Therefore, improvements to current smart door locks are necessary. Utility Model Content

[0004] In view of this, the present invention addresses the deficiencies of the existing technology, and its main purpose is to provide a universal dual-lock cylinder smart door lock, which can effectively solve the problems of inconvenience or poor universality of existing smart door locks.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A universal double-lock cylinder smart door lock includes an inner panel and an outer panel; the outer panel is located directly in front of the inner panel, and the outer panel and the inner panel are respectively disposed on the outer side and the inner side of the door body;

[0007] The inner panel includes a lock housing, a control plate, a bolt, a bolt lever, an inner lock cylinder, an inner flat bar, a transmission lever, a dial, a motor, and a transmission assembly. The control plate is located inside the lock housing. The bolt is movably located inside the lock housing and can extend or retract laterally. The bolt lever is movably located inside the lock housing, and its extension and retraction are actuated by the bolt lever. The bolt lever has a first connecting end exposed on the front side of the lock housing. The inner lock cylinder is located inside the lock housing and exposed on the rear side of the lock housing. The inner flat bar is located on the inner lock cylinder and rotates due to the inner lock cylinder. The inner flat bar is connected to the bolt lever. This drives the latch lever to rotate; the transmission lever is movably disposed within the lock housing, one end of which is connected to the latch lever and drives the latch lever to move; the dial is rotatably disposed within the lock housing, connected to the other end of the transmission lever and driving the transmission lever to move, the dial has a second connecting end, which is exposed on the front side of the lock housing, and the second connecting end and the first connecting end are symmetrically arranged vertically separated; the motor is disposed within the lock housing, and the motor is electrically connected to the control board; the transmission assembly is movably disposed within the lock housing, and the transmission assembly is connected between the output shaft of the motor and the latch lever;

[0008] The outer panel includes a panel shell, an outer lock cylinder, and an outer flat strip; the outer lock cylinder is disposed inside the panel shell and exposed on the front side of the panel shell; the outer flat strip is disposed on the outer lock cylinder and is driven to rotate by the outer lock cylinder, and the tail end of the outer flat strip is adapted to the first connecting end and the second connecting end, and the tail end of the outer flat strip can be detachably inserted and connected to the first connecting end or the second connecting end.

[0009] As a preferred embodiment, the lock housing includes a middle frame, a rear cover, and a front cover; the control plate, lock tongue, lock tongue lever, inner lock cylinder, inner flat bar, transmission lever, dial wheel, motor, and transmission assembly are all disposed within the middle frame; the rear cover is disposed on the rear side of the middle frame and covers the rear opening of the middle frame, and the front cover is disposed on the front side of the middle frame and covers the front opening of the middle frame.

[0010] As a preferred embodiment, the transmission assembly includes a drive gear and a transmission gear. The drive gear is fixed to the output shaft of the motor, and the transmission gear is sleeved on the locking tongue lever, and the transmission gear meshes with the drive gear.

[0011] As a preferred embodiment, a cover plate is provided inside the middle frame, which covers the drive gear and the transmission gear.

[0012] As a preferred embodiment, the locking tongue lever has a connecting post, and the transmission lever has an elongated hole, into which the connecting post is inserted and hinged.

[0013] As a preferred embodiment, the rear cover has an inner lock hole, through which the inner lock cylinder is exposed on the rear side of the lock case.

[0014] As a preferred embodiment, the front cover is provided with a first through hole and a second through hole, which are arranged symmetrically at the top and bottom. The first connecting end and the second connecting end extend forward through the first through hole and the second through hole, respectively, to the front side of the lock case.

[0015] As a preferred embodiment, the panel housing has an external locking hole, through which the external locking core is exposed on the front side of the panel housing.

[0016] As a preferred embodiment, the panel housing is provided with a lock cylinder cover, which is slidably disposed back and forth, and the lock cylinder cover opens or closes the outer lock hole by sliding back and forth.

[0017] As a preferred embodiment, the side of the middle frame is provided with a square hole, and the latch is a square latch that is adapted to the square hole and extends outward through the square hole to the lock housing.

[0018] Compared with the prior art, this utility model has obvious advantages and beneficial effects. Specifically, as can be seen from the above technical solution:

[0019] By simultaneously setting both an inner and outer lock cylinder, the door can be unlocked from both the outside and inside in case of power failure or electronic malfunction, providing convenience for users. It is also equipped with a transmission lever and a dial that are linked with the lock tongue lever, forming a first and second connecting end that are symmetrically set up vertically. At the same time, the tail end of the outer flat strip can be detachably plugged into the first or second connecting end. When switching between left-opening and right-opening doors, the inner panel can be installed by simply inverting the top and bottom, without the need for two sets of panels to distinguish between left and right openings. It has good versatility and is very flexible and convenient to install.

[0020] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the installation in the left-opening state of a preferred embodiment of this utility model;

[0022] Figure 2 This is a schematic diagram of the installation in the preferred embodiment of the present invention with the door in the right-opening state;

[0023] Figure 3 This is a front view of the inner panel (back cover open) in a preferred embodiment of the present invention;

[0024] Figure 4 This is a front view of the outer panel (lock cylinder cover open) in a preferred embodiment of this utility model;

[0025] Figure 5 This is an exploded view of the inner panel in a preferred embodiment of the present invention;

[0026] Figure 6 This is a front view of the internal structure of the inner panel in the unlocked state in a preferred embodiment of this utility model;

[0027] Figure 7 This is a front view of the internal structure of the inner panel in the locked state in a preferred embodiment of the present invention.

[0028] Explanation of reference numerals in the attached diagram:

[0029] 10. Inner panel 11. Lock case

[0030] 111. Mid-frame; 112. Back cover

[0031] 113. Front cover 114. Cover plate

[0032] 115. Silicone pad; 12. Control board

[0033] 13. Locking tongue 131. Guide groove

[0034] 132. Bolt; 133. Actuating groove

[0035] 14. Locking tongue lever 141. First connecting end

[0036] 142. Pulling block; 143. Connecting post

[0037] 15. Inner lock cylinder 16. Inner flat bar

[0038] 17. Transmission lever 171. Long slot hole

[0039] 18. Dial 181. Second connecting end

[0040] 19. Motor; 191. Output shaft

[0041] 101. Transmission assembly; 1011. Drive gear

[0042] 1012, transmission gear; 102, square hole

[0043] 103. Inner locking hole; 104. First through hole

[0044] 105. Second through hole; 106. First insertion hole

[0045] 107, Second socket 20, Outer panel

[0046] 21. Panel housing 22. External lock cylinder

[0047] 23. Outer flat strip; 24. Lock cylinder cover

[0048] 201. External lock hole. Detailed Implementation

[0049] Please refer to Figures 1 to 7 As shown, it illustrates the specific structure of a preferred embodiment of the present invention, including an inner panel 10 and an outer panel 20.

[0050] The inner panel 10 includes a lock housing 11, a control panel 12, a lock tongue 13, a lock tongue lever 14, an inner lock cylinder 15, an inner flat bar 16, a transmission lever 17, a dial 18, a motor 19, and a transmission assembly 101; specifically:

[0051] The lock housing 11 includes a middle frame 111, a rear cover 112, and a front cover 113. The rear cover 112 is located on the rear side of the middle frame 111 and covers the rear opening of the middle frame 111. The front cover 113 is located on the front side of the middle frame 111 and covers the front opening of the middle frame 111. A square hole 102 is provided on the side of the middle frame 111. An inner lock hole 103 is provided on the rear cover 112. A first through hole 104 and a second through hole 105 are provided on the front cover 113. The first through hole 104 and the second through hole 105 are symmetrically arranged vertically. In addition, a cover plate 114 is provided inside the middle frame 111, and a silicone pad 115 is covered on the front side of the front cover 113 for a close fit with the door.

[0052] The control panel 12 is disposed within the lock housing 11. In this embodiment, the control panel 12 is disposed within the middle frame 111, and the control panel 12 is secured to the middle frame 111 by a plurality of screws.

[0053] The latch 13 is movably disposed within the lock housing 11, and can extend laterally or retract into the lock housing 11. In this embodiment, the latch 13 is disposed within the middle frame 111. The latch 13 is a square latch, which is adapted to fit through the square hole 102 and extends outward through the square hole 102 into the lock housing 11. Furthermore, a guide groove 131 is formed through the front and rear sides of the inner end of the latch 13, extending laterally. A bolt 132 passes through the guide groove 131 and is fixedly connected to the middle frame 111. In addition, an actuating groove 133 is formed on the lower inner side of the latch 13, and the actuating groove 133 has an inverted Y-shaped structure.

[0054] The latch lever 14 is movably disposed within the lock housing 11. The latch lever 14 actuates the latch 13 to extend and retract. The latch lever 14 has a first connecting end 141, which protrudes from the front side of the lock housing 11. In this embodiment, the latch lever 14 is disposed within the middle frame 111, and the first connecting end 141 extends forward through the first through hole 104 from the front side of the lock housing 11. The latch lever 14 has a lever block 142, which is adapted to and embedded in the lever groove 133. The latch lever 14 also has a connecting post 143. Furthermore, the first connecting end 141 has a first insertion hole 106.

[0055] The inner lock cylinder 15 is disposed inside the lock housing 11 and exposed on the rear side of the lock housing 11. In this embodiment, the inner lock cylinder 15 is disposed inside the middle frame 111, and the inner lock cylinder 15 is exposed on the rear side of the lock housing 11 through the inner lock hole 103.

[0056] The inner flat strip 16 is disposed on the inner lock cylinder 15 and is driven to rotate by the inner lock cylinder 15. The inner flat strip 16 is connected to the lock tongue lever 14 and drives the lock tongue lever 14 to rotate. In this embodiment, the inner flat strip 16 is disposed inside the middle frame 111.

[0057] The transmission lever 17 is movably disposed within the lock housing 11. One end of the transmission lever 17 is connected to the latch lever 14 and drives the latch lever 14 to move. In this embodiment, the transmission lever 14 is disposed within the middle frame 111; one end of the transmission lever 17 has an elongated hole 171, and the connecting post 143 is inserted into the elongated hole 171 and hinged, thereby realizing the connection between one end of the transmission lever 17 and the latch lever 14.

[0058] The dial 18 is rotatably mounted inside the lock housing 11. The dial 18 is connected to the other end of the transmission lever 17 and drives the transmission lever 17 to move. The dial 18 has a second connecting end 181, which is exposed on the front side of the lock housing 11 and is symmetrically arranged vertically and vertically separated from the first connecting end 141. In this embodiment, the dial 18 is mounted inside the middle frame 111; the second connecting end 181 extends forward through the second through hole 105 onto the front side of the lock housing 11, and a second insertion hole 107 is provided on the second connecting end 181.

[0059] The motor 19 is disposed within the lock housing 11 and is electrically connected to the control board 12. In this embodiment, the motor 19 is disposed within the middle frame 111 and is fixedly connected to the middle frame 111.

[0060] The transmission assembly 101 is movably disposed within the lock housing 11 and is connected between the output shaft of the motor 19 and the latch lever 14. In this embodiment, the transmission assembly 101 is disposed within the middle frame 111. Specifically, the transmission assembly 101 includes a drive gear 1011 and a transmission gear 1012. The drive gear 1011 is fixed to the output shaft 191 of the motor 19, and the transmission gear 1012 is sleeved on the latch lever 14, meshing with the drive gear 1011. Furthermore, the cover plate 114 covers the drive gear 1011 and the transmission gear 1012, ensuring stable and reliable operation of the drive gear 1011 and the transmission gear 1012.

[0061] The outer panel 20 is located directly in front of the inner panel 10, and the outer panel 20 and the inner panel 10 are respectively disposed on the outer and inner sides of the door body. Specifically, the outer panel 20 includes a panel shell 21, an outer lock cylinder 22, and an outer flat strip 23. The outer lock cylinder 22 is disposed inside the panel shell 21 and is exposed on the front side of the panel shell 21. The outer flat strip 23 is disposed on the outer lock cylinder 22 and is driven to rotate by the outer lock cylinder 22. The tail end of the outer flat strip 23 is adapted to the first connecting end 141 and the second connecting end 181, and the tail end of the outer flat strip 23 can be detachably inserted into the first connecting end 141 or the second connecting end 181. In this embodiment, the inner end of the outer flat strip 23 is adapted to the first insertion hole 106 and the second insertion hole 107, and can be inserted into the first insertion hole 106 or the second insertion hole 107 for connection according to the external application scenario of left-opening or right-opening door. Furthermore, the panel housing 21 has an external lock hole 201, through which the external lock cylinder 22 is exposed on the front side of the panel housing 21. In addition, the panel housing 21 is provided with a lock cylinder cover 24, which is slidably disposed, and the lock cylinder cover 24 opens or closes the external lock hole 201 by sliding back and forth.

[0062] The usage method of this embodiment is described in detail below:

[0063] When installing left-opening and right-opening doors, the inner panel 10 is reversed vertically and installed on the inner side of the door body, while the outer panel 20 remains in the same position and orientation and is installed on the outer side of the door body. Specifically: as shown in the figure... Figure 1 As shown, when installed on a left-opening door, the inner end of the outer flat strip 23 is inserted into the first insertion hole 106, so that the outer flat strip 23 is connected to the latch lever 14. When installed on a right-opening door, the inner end of the outer flat strip 23 is inserted into the second insertion hole 107, so that the outer flat strip 23 is connected to the dial 18.

[0064] The working principle of this embodiment is described in detail below:

[0065] 1. Electronic switch lock: When the motor 19 is powered on, the motor rotates in both directions, driving the drive gear 1011 to rotate back and forth. Then, the drive gear 1011 drives the transmission gear 1012 to rotate back and forth. Next, the transmission gear 1012 drives the lock tongue lever 14 to rotate back and forth. Then, the lock tongue lever 14 moves the lock tongue 13 back and forth, causing the lock tongue 13 to extend or retract. When the lock tongue 13 extends, it can lock the door; when the lock tongue 13 retracts, it can unlock the door.

[0066] 2. Inner lock cylinder operation: When the key is inserted into the inner lock cylinder 15 and turned back and forth, the key causes the internal components of the inner lock cylinder 15 to rotate, which in turn drives the inner flat bar 16 to rotate back and forth. Then, the inner flat bar 16 drives the bolt lever 14 to rotate back and forth. Then, the bolt lever 14 moves the bolt 13 back and forth, causing the bolt 13 to extend or retract. When the bolt 13 extends, the lock can be closed; when the bolt 13 retracts, the lock can be unlocked.

[0067] 3. External lock cylinder switch lock:

[0068] a. Left-opening door: When the key is inserted into the outer lock cylinder 22 and turned back and forth, the key causes the internal components of the outer lock cylinder 22 to rotate, and drives the outer flat bar 23 to rotate back and forth. Then, the outer flat bar 23 drives the bolt lever 14 to rotate back and forth. Then, the bolt lever 14 moves the bolt 13 back and forth, causing the bolt 13 to extend or retract. When the bolt 13 extends, the lock can be closed; when the bolt 13 retracts, the lock can be opened.

[0069] b. Right-opening door: When the key is inserted into the outer lock cylinder 22 and turned back and forth, the key causes the internal components of the outer lock cylinder 22 to rotate, and drives the outer flat bar 23 to rotate back and forth. Then, the outer flat bar 23 drives the dial wheel 18 to rotate back and forth. Then, the dial wheel 18 drives the transmission lever 17 to swing back and forth. Then, the transmission lever 17 drives the bolt lever 14 to rotate back and forth. Then, the bolt lever 14 moves the bolt 13 back and forth, causing the bolt 13 to extend or retract. When the bolt 13 extends, the lock can be closed; when the bolt 13 retracts, the lock can be opened.

[0070] The key design feature of this utility model is that by simultaneously setting an inner lock cylinder and an outer lock cylinder, the door can be unlocked from both the outside and inside in case of power failure or electronic malfunction in an emergency, bringing convenience to users. It is also equipped with a transmission lever and a dial wheel that are linked with the lock tongue lever to form a first and second connecting end that are symmetrically set up vertically. At the same time, the tail end of the outer flat strip can be detachably plugged into the first or second connecting end. When switching between left-opening and right-opening door installation, only the inner panel needs to be installed by flipping it upside down, without the need for two sets of panels to distinguish between left and right opening. It has good versatility and is very flexible and convenient to install.

[0071] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, any minor modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A universal double-lock cylinder smart door lock, comprising an inner panel and an outer panel; the outer panel is located directly in front of the inner panel, and the outer panel and the inner panel are respectively disposed on the outer and inner sides of the door body; characterized in that: The inner panel includes a lock housing, a control plate, a bolt, a bolt lever, an inner lock cylinder, an inner flat bar, a transmission lever, a dial, a motor, and a transmission assembly. The control plate is located inside the lock housing. The bolt is movably located inside the lock housing and can extend or retract laterally. The bolt lever is movably located inside the lock housing, and its extension and retraction are actuated by the bolt lever. The bolt lever has a first connecting end exposed on the front side of the lock housing. The inner lock cylinder is located inside the lock housing and exposed on the rear side of the lock housing. The inner flat bar is located on the inner lock cylinder and rotates due to the inner lock cylinder. The inner flat bar is connected to the bolt lever. This drives the latch lever to rotate; the transmission lever is movably disposed within the lock housing, one end of which is connected to the latch lever and drives the latch lever to move; the dial is rotatably disposed within the lock housing, connected to the other end of the transmission lever and driving the transmission lever to move, the dial has a second connecting end, which is exposed on the front side of the lock housing, and the second connecting end and the first connecting end are symmetrically arranged vertically separated; the motor is disposed within the lock housing, and the motor is electrically connected to the control board; the transmission assembly is movably disposed within the lock housing, and the transmission assembly is connected between the output shaft of the motor and the latch lever; The outer panel includes a panel shell, an outer lock cylinder, and an outer flat strip; the outer lock cylinder is disposed inside the panel shell and exposed on the front side of the panel shell; the outer flat strip is disposed on the outer lock cylinder and is driven to rotate by the outer lock cylinder, and the tail end of the outer flat strip is adapted to the first connecting end and the second connecting end, and the tail end of the outer flat strip can be detachably inserted and connected to the first connecting end or the second connecting end.

2. The universal double cylinder deadbolt electronic door lock of claim 1, wherein: The lock housing includes a middle frame, a rear cover, and a front cover; the control panel, lock tongue, lock tongue lever, inner lock cylinder, inner flat bar, transmission lever, dial wheel, motor, and transmission components are all located inside the middle frame; the rear cover is located on the rear side of the middle frame and covers the rear opening of the middle frame, and the front cover is located on the front side of the middle frame and covers the front opening of the middle frame.

3. The universal double cylinder deadbolt electronic door lock of claim 2, wherein: The transmission assembly includes a drive gear and a transmission gear. The drive gear is fixed on the output shaft of the motor, and the transmission gear is sleeved on the locking tongue lever. The transmission gear meshes with the drive gear.

4. The universal double cylinder deadbolt electronic door lock of claim 3, wherein: A cover plate is provided inside the middle frame, which covers the drive gear and the transmission gear.

5. The universal, double-cylinder deadbolt electronic door lock of claim 2, wherein: The locking tongue lever has a connecting post, and the transmission lever has an elongated hole, in which the connecting post is inserted and hinged.

6. The universal, double-cylinder deadbolt electronic door lock of claim 2, wherein: The rear cover has an inner lock hole, through which the inner lock cylinder protrudes from the rear side of the lock case.

7. The universal, double-cylinder deadbolt electronic door lock of claim 2, wherein: The front cover has a first through hole and a second through hole, which are symmetrically arranged vertically. The first connecting end and the second connecting end extend forward through the first through hole and the second through hole, respectively, to the front side of the lock case.

8. The universal, double-cylinder deadbolt smart door lock of claim 1, wherein: The panel shell has an external lock hole, through which the external lock core is exposed on the front side of the panel shell.

9. The universal, double-cylinder deadbolt electronic door lock of claim 8, wherein: The panel housing is provided with a lock cylinder cover, which is slidably disposed back and forth, and the lock cylinder cover is slid back and forth to open or close the outer lock hole.

10. The universal, double-cylinder deadbolt electronic door lock of claim 2, wherein: The side surface of the middle frame is provided with a square hole, the lock tongue is a square tongue, the square tongue is matched with the square hole and extends out of the lock shell through the square hole.

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