Smart door lock sliding cover structure

Abstract

The present invention discloses a sliding cover structure for an intelligent door lock, which includes a door lock cover plate, a sliding cover, a handle and a handle reset elastic member. The sliding cover is slidably installed on the surface of the door lock cover plate by a set distance. The sliding cover can cover the unlocking input part on the lock body. The sliding cover can be detachably connected to the door lock when the unlocking input part is completely exposed. The handle is rotatably installed on the lock body by a set angle. The handle reset elastic member can provide an elastic holding force for the handle in the locked state. A pull rod is movably arranged inside the door lock. When the handle located at one end inside the door lock rotates, it can drive the pull rod to move. The movement of the pull rod can drive the sliding cover to disengage from the door lock and slide towards the direction of covering the unlocking input part. When the handle is rotated to open the door in the present invention, the sliding cover slides down and resets, avoiding manual operation. The whole mechanical structure will not affect the power consumption and electronic life of the whole machine.

Description

Technical Field

[0001] The present invention relates to a door lock, in particular to a sliding cover structure of an intelligent door lock. Background Art

[0002] When unlocking an intelligent door lock, it is necessary to first slide up the sliding cover to expose the unlocking input part, and then input a password, fingerprint, etc. to unlock. After unlocking, press the door handle to open the lock tongue of the door lock to open the door. After opening the door, it is necessary to slide down the sliding cover to reset it and cover the unlocking input part. Currently, the common reset of the sliding cover mainly adopts manual sliding reset. This method causes users to often forget to pull down the sliding cover to reset after opening the door, resulting in the unlocking input part always being exposed; there is also a structure for automatic sliding down reset of the sliding cover. Generally, the automatic sliding down of the sliding cover on the market is either electric or mechanical instantaneous sliding down! Motor drive will increase the power consumption and faults of the entire lock. For the mechanical instantaneous sliding down structure, when the sliding cover reaches the position instantly during automatic sliding down, the impact sound is very loud, generating noise, and the surface is easily damaged. Summary of the Invention

[0003] In order to overcome the above defects, the present invention provides a sliding cover structure of an intelligent door lock, which can realize automatic reset of the sliding cover when opening the door.

[0004] The technical solution adopted by the present invention to solve its technical problems: A sliding cover structure of an intelligent door lock includes a door lock cover plate, a sliding cover, a door handle, and a door handle reset elastic member. The sliding cover is slidably installed on the surface of the door lock cover plate by a set distance. The sliding cover can cover the unlocking input part on the lock body. The sliding cover can be detachably connected to the door lock when the unlocking input part is completely exposed. The door handle is rotatably installed on the lock body by a set angle. The door handle reset elastic member can provide an elastic holding force for the door handle in the locked state. A pull rod is also movably provided inside the door lock. One end of the door handle located inside the door lock can drive the pull rod to move when rotated. The movement of the pull rod can drive the sliding cover to disengage from the door lock and slide towards the direction of covering the unlocking input part.

[0005] As a further improvement of the present invention, the pull rod and the sliding cover are respectively slidably installed on the surface of the door lock cover plate and inside the door lock along the longitudinal direction. The sliding cover is provided with a convex blocking part extending towards the inside of the lock body. One end of the pull rod is provided with a hook part. The cover plate of the lock body is provided with a long strip-shaped hollow structure extending along the longitudinal direction. The hook part at one end of the pull rod passes through the long strip-shaped hollow structure on the cover plate of the lock body and just stops at the upper side of the convex blocking part of the sliding cover.

[0006] As a further improvement of the present invention, the pull rod is a U-shaped structure, and the hook part is located at the ends of the two side walls of its U-shaped structure. The sliding cover is provided with two convex blocking parts with matching positions. At least one pin is eccentrically fixed on the reversing baffle inside the lock body where the door handle is located. The pin can toggle the bottom surface of the U-shaped structure of the pull rod.

[0007] As a further improvement of the present invention, two latch pins are eccentrically provided at one end of the handle inside the door lock, and the two latch pins are symmetrically distributed on both sides of the axis of the handle. When the handle is in a free state, the connection line of the two latch pins is parallel to the bottom surface of the U-shaped structure of the pull rod.

[0008] As a further improvement of the present invention, a pull rod return elastic member is also provided, and the pull rod return elastic member provides an elastic holding force for the pull rod in a direction away from the sliding cover convex blocking portion.

[0009] As a further improvement of the present invention, a rack extending longitudinally is further provided on the sliding cover, and a damping gear is rotatably installed on the door lock, and the damping gear is in meshing transmission with the rack.

[0010] As a further improvement of the present invention, a magnet is fixedly installed on the sliding cover, and a Hall switch is provided on the door lock, and the Hall switch is connected to the power supply circuit of the unlocking input portion of the door lock.

[0011] As a further improvement of the present invention, an inner groove portion is provided on the inner side wall of the sliding cover, a slideway is provided on the door lock cover plate, and a ball is slidably provided in the slideway, and a ball elastic member is further provided in the slideway. The ball elastic member provides an elastic holding force for the ball to keep sliding in the direction of the opening of the slideway. The opening portion of the slideway forms a constricted structure with a diameter smaller than the diameter of the ball, and a part of the outer circumferential surface of the ball extends out of the door lock cover plate through the opening portion of the slideway and is caught in the inner groove portion on the sliding cover.

[0012] As a further improvement of the present invention, a convex platform structure is provided on the inner side wall of the sliding cover. One end of the convex platform structure facing the opening direction of the sliding cover is transitionally connected to the inner side wall of the sliding cover through an inclined surface. The inner groove portion is located on the surface of the convex platform structure, and a set gap exists between the inner surface of the sliding cover and the outer circumferential surface of the ball.

[0013] As a further improvement of the present invention, a raised step is formed on one side of the surface of the door lock cover plate along the sliding direction of the sliding cover, a raised stopper is provided on the other side of the door lock cover surface along the sliding direction of the sliding cover, and a sliding cover positioning protrusion is further provided on the inner side wall of the sliding cover. One side wall of the sliding cover along its sliding direction and the sliding cover positioning protrusion are respectively stopped on the opposite side walls of the raised step and the raised stopper.

[0014] The beneficial effects of the present invention are as follows: By arranging a pull rod inside the lock body, and the pull rod is linked with the handle. When the handle is rotated to open the door, the pull rod is driven to slide, thereby realizing the release and downward reset of the sliding cover from the cover plate of the lock body, avoiding manual reset of the sliding cover. Moreover, this structure is a fully mechanical structure, which will not affect the power consumption and electronic lifespan of the whole machine. In addition, the present invention also arranges a rack on the sliding cover and a damping gear on the door lock cover plate. Through the meshing transmission of the damping gear and the rack, when the sliding cover slides down, the sliding speed is gentle, and there is no obvious impact sound when it reaches the stopping position, forming a silent effect and also avoiding impact damage to the surface of the lock body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is an exploded perspective view of the present invention;

[0016] Figure 2 is a front view of the present invention in the using state;

[0017] Figure 3 is Figure 2 a sectional view taken along the line A-A in

[0018] Figure 4 is Figure 3 an enlarged view of part C in

[0019] Figure 5 is Figure 2 a sectional view taken along the line B-B in

[0020] Figure 6 is Figure 5 an enlarged view of part D in

[0021] Figure 7 is a schematic diagram of the meshing connection structure of the gear and the damping gear of the present invention;

[0022] Figure 8 is a rear view of the present invention after the sliding cover is closed;

[0023] Figure 9 is Figure 8 a sectional view taken along the line E-E in

[0024] Figure 10 is Figure 8 a sectional view taken along the line F-F in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] Embodiment: An intelligent door lock sliding cover structure includes a door lock cover plate 1, a sliding cover 2, a handle 3, and a handle reset elastic member. The sliding cover 2 is slidably installed on the surface of the door lock cover plate 1 by a set distance. The sliding cover 2 can cover the unlocking input part 4 on the lock body. The sliding cover 2 can be detachably connected to the door lock when the unlocking input part 4 is completely exposed. The handle 3 is rotatably installed on the lock body by a set angle. The handle reset elastic member can provide an elastic holding force for the handle 3 in the locked state. It is characterized in that a pull rod 5 is movably provided inside the door lock. One end of the handle 3 located inside the door lock can drive the pull rod 5 to move when rotated. The movement of the pull rod 5 can drive the sliding cover 2 to be detached from the door lock and slide towards the direction of covering the unlocking input part 4.

[0026] When unlocking the intelligent door lock, it is necessary to first slide the sliding cover 2 to expose the unlocking input part 4 on the surface of the lock body cover plate 1. At this time, the sliding cover 2 is detachably connected and positioned with the door lock cover plate 1. At this time, the user can perform an electric unlocking operation (such as entering a password, inserting a key, pressing a fingerprint, connecting Bluetooth, APP... etc.). After the electric unlocking is completed, rotate the handle 3 to open the lock tongue of the lock body to achieve complete unlocking and entry into the house. During the process of rotating the handle 3, by driving the movement of the pull rod 5, the sliding cover 2 is automatically detached from the door lock cover plate 1, and the sliding cover 2 slides in the reverse direction to cover the unlocking input part 4. At the same time as opening the door, the handle 3 returns to its original position. After each unlocking, the sliding cover 2 will be mechanically driven by the pull rod 5 and automatically closed. This avoids the situation where the sliding cover 2 is forgotten to be closed after unlocking. This structure realizes automatic closing of the sliding cover 2 when opening the door, avoiding the action of closing the sliding cover 2 after opening the door, improving the convenience of using the intelligent door lock, and this mechanism is a fully mechanical structure, which will not affect the power consumption and electronic life of the whole machine.

[0027] The pull rod 5 and the sliding cover 2 are respectively installed on the surface of the door lock cover plate 1 and inside the door lock so as to be slidable longitudinally. The sliding cover 2 is provided with a convex blocking portion 6 extending towards the inside of the lock body. One end of the pull rod 5 is provided with a hook portion 7. The cover plate 1 of the lock body is provided with a long strip-shaped hollow structure 8 extending longitudinally. The hook portion 7 at one end of the pull rod 5 passes through the long strip-shaped hollow structure 8 on the lock body cover plate 1 and just stops against the upper side of the convex blocking portion 6 of the sliding cover 2. When opening the door, the sliding cover 2 is pulled upwards. After the sliding cover 2 is pulled in place, the unlocking input portion 4 is completely exposed. At this time, operations such as entering a password can be performed for electronic unlocking. At this time, the hook portion 7 at one end of the pull rod 5 just approaches the upper side surface of the convex blocking portion 6 inside the sliding cover 2. After the electronic unlocking is completed, when turning the door handle 3 to open the door, the pull rod 5 slides down under the linkage action of the door handle 3, and the hook portion 7 thereon moves downward against the convex blocking portion 6 on the sliding cover 2, realizing the disengagement of the sliding cover 2 from the door lock. The sliding cover 2 slides downward under the action of the downward pressure given by the hook portion 7 and its own weight to achieve closing. The surface of the convex blocking portion 6 on the sliding cover 2 is preferably formed with a groove matching the shape of the hook portion 7 at one end of the pull rod 5. The hook portion 7 at one end of the pull rod 5 can just be accommodated in the groove, avoiding the dislocation of the hook portion 7 on the pull rod 5 and the convex blocking portion 6 inside the sliding cover 2 when the pull rod 5 slides down, and ensuring the smooth automatic closing of the sliding cover 2.

[0028] The pull rod 5 is of a U-shaped structure, and the hook portion 7 is located at the ends of the two side walls of its U-shaped structure. The sliding cover 2 is provided with two convex blocking portions 6 matching its position. At least one pin 9 is fixedly provided eccentrically on the reversing baffle inside the lock body where the door handle 3 is located. The pin 9 can move the bottom surface of the U-shaped structure of the pull rod 5. When the door handle 3 rotates, it drives the pin 9 thereon to rotate around the axis of the door handle 3, forming a longitudinal displacement, and then pulling the pull rod 5 to slide down. The pull rod 5 makes its bottom surface cooperate with the pin 9 through its U-shaped structure, and its two side walls symmetrically press against the sliding cover 2, so that the sliding cover 2 is in balanced force and stably slides down to close, avoiding tilting and jamming.

[0029] One end of the door handle 3 located inside the door lock is eccentrically provided with two pins 9, and the two pins 9 are symmetrically distributed on both sides of the axis of the door handle 3. The connection line of the two pins 9 is parallel to the bottom surface of the U-shaped structure of the pull rod 5 when the door handle 3 is in the free state. The two pins 9 are symmetrically arranged on both sides of the axis of the door handle 3, so that the door handle 3 pulls the pull rod 5 both when opening the door and when closing and locking the door, ensuring that the sliding cover 2 is in the closed state.

[0030] A pull rod return elastic member 10 is further provided. The pull rod return elastic member 10 provides an elastic holding force for the pull rod 5 towards the direction away from the convex blocking portion 6 of the sliding cover. When opening the door, the door handle 3 returns to its original position at the same time. At this time, the pull rod 5 will return under the pulling force of the pull rod return elastic member 10. The pull rod return elastic member 10 is preferably a tension spring, and can also be a compression spring or a torsion spring, etc.

[0031] A rack 11 extending longitudinally is further provided on the sliding cover 2, and a damping gear 12 is rotatably mounted on the door lock. The damping gear 12 is in meshing transmission with the rack 11. When opening the door, pressing down the handle 3 will drive the pull rod 5 to pull the sliding cover 2 downward. The sliding cover 2 is disengaged. At this time, the rack 11 on the sliding cover 2 slides downward gently and evenly under the dual action of the gravity of the sliding cover 2 and the damping force of the damping gear 12. The sliding speed is gentle. When it slides to the stopping position, there is no obvious impact sound, forming a silent effect and also avoiding impact damage to the surface of the door lock.

[0032] A magnet 13 is fixedly mounted on the sliding cover 2, and a Hall switch is provided on the door lock. The Hall switch is electrically connected to the power supply circuit of the unlocking input part 4 of the door lock. When opening the door, sliding the sliding cover 2 exposes the unlocking input part 4. At this time, the magnet 13 on the sliding cover 2 will trigger the Hall switch to wake up the touch screen of the unlocking input part 4, facilitating the input of passwords and fingerprints for unlocking.

[0033] An inner groove part 14 is provided on the inner side wall of the sliding cover 2. A slideway is provided on the door lock cover plate 1, and a ball 15 is slidably provided in the slideway. A ball elastic member 16 is further provided in the slideway. The ball elastic member 16 provides an elastic holding force for the ball 15 to keep sliding towards the opening direction of the slideway. The opening part of the slideway forms a constriction structure with a diameter smaller than the diameter of the ball 15. A part of the outer circumferential surface of the ball 15 extends out of the door lock cover plate 1 through the opening part of the slideway and falls into the inner groove part 14 on the sliding cover 2. When the sliding cover 2 slides to the fully opened position, the ball 15 is exactly opposite to the inner groove part 14 on the sliding cover 2, and the ball 15 slides into the inner groove part 14 to realize the snap connection between the door lock cover plate 1 and the sliding cover 2. In addition to this snap connection structure, other snap connection structures can also be used, such as clamping and snap connection positioning through an interference fit between a conical channel and a conical slider, positioning through a bump and a groove, positioning through a C-shaped groove and a ball head, etc. These are equivalent replacement structures that can be easily thought of by those skilled in the art according to this patent.

[0034] A boss structure 17 is provided on the inner side wall of the sliding cover 2. One end of the boss structure 17 facing the opening direction of the sliding cover 2 is transitionally connected to the inner side wall of the sliding cover 2 through an inclined surface. The inner groove part 14 is located on the surface of the boss structure 17. A set gap exists between the inner surface of the sliding cover 2 and the outer circumferential surface of the ball 15. When the sliding cover 2 is pulled up, the front end of the boss structure 17 on the inner side of the sliding cover 2 is designed with an inclination, and there will be no jamming feeling when pulled up, and the transition is gentle. When the sliding cover 2 slides downward and disengages from the positioning, the gap between the steel ball and the inner side wall of the sliding cover 2 makes the steel ball in a suspended state, and the sliding cover 2 is not affected by the elastic force, ensuring the smooth up and down sliding of the sliding cover 2.

[0035] On one side of the surface of the door lock cover plate 1 along the sliding direction of the sliding cover 2, a raised step 18 is formed. On the other side of the surface of the door lock cover along the sliding direction of the sliding cover 2, a raised stopper 19 is provided. On the inner side wall of the sliding cover 2, a sliding cover positioning protrusion 20 is further provided. One side wall of the sliding cover 2 along its sliding direction and the sliding cover positioning protrusion 20 respectively abut against the opposite side walls of the raised step 18 and the raised stopper 19. When the sliding cover 2 is pulled upward to a specific designed position, the sliding cover 2 is snap - connected to the door lock cover plate 1. At this time, the raised stopper 19 on the door lock cover plate 1 blocks the positioning protrusion on the sliding cover 2 to prevent the further upward pulling of the sliding cover 2 and keep it in a stopped state. When the sliding cover 2 slides down to the in - place position, its lower side plate abuts against the raised step 18 of the lock body cover plate 1 and stops sliding further. Among them, the raised stopper 19 on the door lock cover plate 1 can be a stud screwed to the lock body cover plate 1 and can be provided on both sides in the width direction of the door lock cover plate 1 to keep the blocking force on the sliding cover 2 uniform.

[0036] A guiding slideway can also be arranged inside the door lock to limit the sliding track of the pull rod 5. The guiding slideway can be composed of a number of screws located on both sides of the pull rod 5, and the side walls of the screws block and guide the pull rod 5. A groove - shaped slideway can be arranged on the outer side wall of the door lock cover plate 1, and a bent edge extending inward can be arranged at the edge of the sliding cover 2. The sliding direction of the sliding cover 2 is limited by the sliding of the bent edge in the groove - shaped slideway on the side wall of the door lock cover plate 1, and the connection between the sliding cover 2 and the door lock cover plate 1 is realized.

Claims

1. An intelligent door lock sliding cover structure, comprising a door lock cover plate, a sliding cover (2), a handle (3) and a handle return elastic member. The sliding cover is slidably installed on the surface of the cover plate (1) of the door lock by a set distance. The sliding cover can cover the unlocking input part (4) on the lock body. The sliding cover can be detachably connected to the door lock when the unlocking input part is completely exposed. The handle is rotatably installed on the lock body by a set angle. The handle return elastic member can provide an elastic holding force for the handle in the locked state. It is characterized in that, A pull rod (5) is also provided in the door lock and can move. The handle is located at one end of the door lock and can rotate to drive the pull rod to move. The movement of the pull rod can drive the sliding cover to disengage from the door lock and slide in the direction of covering the unlocking input part. The sliding cover is also provided with a rack (11) extending in the longitudinal direction. A damping gear (12) is rotatably installed on the door lock. The damping gear and the rack are meshed for transmission. An inner groove portion (14) is provided on the inner side wall of the sliding cover. A slideway is provided on the door lock cover plate. A ball (15) is slidably provided in the slideway. A ball elastic member (16) is also provided in the slideway. The ball elastic member provides an elastic retaining force for the ball to keep sliding in the direction of the slideway opening. The slideway opening forms a constriction structure with a diameter smaller than the ball diameter. The outer circumferential surface of the ball portion extends out through the slideway opening to the outside of the door lock cover plate and sinks into the inner groove portion on the sliding cover.

2. The smart door lock sliding cover structure according to claim 1, characterized in that: The pull rod and the sliding cover are respectively slidably installed on the surface of the door lock cover plate and the inside of the door lock in the longitudinal direction. The sliding cover is provided with a convex stop portion (6) extending toward the inside of the lock body, and a hook portion (7) is provided at one end of the pull rod. The cover plate of the lock body is provided with a long hollow structure (8) extending in the longitudinal direction. The hook portion at one end of the pull rod passes through the long hollow structure on the lock body cover plate and stops at the upper side of the convex stop portion of the sliding cover.

3. The sliding cover structure of the intelligent door lock according to claim 2, characterized in that: The pull rod is a U-shaped structure, the pull hook part is located at the end of the two side walls of the U-shaped structure, the sliding cover is provided with two convex stop parts that match the position, and the handle is located on the reversing baffle inside the lock body and is eccentrically fixed with at least one push pin (9), and the push pin can push the bottom surface of the U-shaped structure of the pull rod.

4. The smart door lock sliding cover structure according to claim 3, wherein: The handle is located at one end inside the door lock and is eccentrically provided with two pins, and the two pins are symmetrically distributed on both sides of the handle axis. The connection line of the two pins is parallel to the bottom surface of the U-shaped structure of the pull rod when the handle is in a free state.

5. The smart door lock sliding cover structure according to claim 1 or 3, characterized in that: A pull rod reset elastic member (10) is also provided, and the pull rod reset elastic member provides the pull rod with an elastic retaining force in a direction away from the convex stop portion of the sliding cover.

6. The sliding cover structure of the intelligent door lock according to claim 1, wherein: A magnet (13) is fixedly mounted on the sliding cover, and a Hall switch is provided on the door lock. The Hall switch is connected to a power supply circuit of an unlocking input portion of the door lock.

7. The sliding cover structure of the intelligent door lock according to claim 1, characterized in that: A boss structure (17) is provided on the inner wall of the sliding cover, and one end of the boss structure facing the opening direction of the sliding cover is connected to the inner wall of the sliding cover through an inclined transition. The inner groove portion is located on the surface of the boss structure, and a set gap exists between the inner surface of the sliding cover and the outer surface of the ball circumference.

8. The sliding cover structure of the intelligent door lock according to claim 1, wherein: A raised step (18) is formed on one side of the door lock cover surface along the sliding direction of the sliding cover, a raised stopper (19) is provided on the other side of the door lock cover surface along the sliding direction of the sliding cover, and a sliding cover positioning protrusion (20) is also provided on the inner side wall of the sliding cover, and a side wall of the sliding cover along its sliding direction and the sliding cover positioning protrusion are respectively stopped on the raised step and the side wall opposite to the raised stopper.

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