CN211201447U - Intelligent lock with idle stroke - Google Patents

Abstract

The utility model discloses an intelligent tool to lock with idle running stroke, include: the lock comprises a driving mechanism, a reduction gear set, a thumb wheel gear, a thumb wheel, a lock tongue transmission mechanism, a lock tongue and a lock shell; the thumb wheel gear comprises a tooth engaging part and a mounting part, the mounting part is positioned at the upper part of the tooth engaging part, the mounting part comprises an annular groove and an idle stroke stop block, and the idle stroke stop block is in an arc shape and is fixedly arranged in the annular groove; the shifting wheel is pivoted in the shifting wheel gear, an idle slide block is arranged on the side part of the shifting wheel, and the idle slide block is movably arranged in the annular groove and is suitable for moving along the annular groove, so that the idle stroke stop block is suitable for abutting and propping against the idle slide block; the outer edge of the poking wheel is provided with a poking tongue which is suitable for abutting and poking the lock tongue transmission mechanism. The utility model has the advantages that the middle shifting wheel completes the unlocking action in the idle stroke, and the reduction gear set can not be pushed in the process, namely, the key can not receive the resistance of the meshing between the gears in the rotating process, so that the unlocking is more labor-saving and convenient; the reduction gear is prevented from being damaged.

Description

Intelligent lock with idle stroke

Technical Field

The utility model relates to a tool to lock field, concretely relates to intelligent tool to lock with idle running stroke.

Background

Adopt small-size motor as driven intelligent tool to lock, a thumb wheel (or call to dial tongue, plectrum) can be installed usually to the inside of lock, and its theory of operation of unblanking is mainly such: during locking, the motor rotates forwards to drive the shifting wheel to rotate through the transmission of a series of reduction gear sets, and the shifting wheel can shift a transmission mechanism (usually a connecting rod mechanism) of the lock tongue in the rotating process, so that the lock tongue extends out to complete the locking action; when the lock is unlocked, the motor rotates reversely, the thumb wheel rotates reversely, the lock tongue retracts through transmission, and the unlocking action is completed.

If only electric unlocking is considered, the lock structure can meet the use requirement. However, in daily use, there are some situations that require manual unlocking: for example, the motor and the speed reducer have faults to cause stalling; the abrasion degree of the reduction gear is high, and smooth transmission cannot be realized; or the habit preference of some users, like to use a key to unlock the lock. In these cases, the lock needs to have a manual unlocking function in a state where the motor is stopped, in addition to the electric unlocking function.

Because the motor drives the dial wheel to rotate through the transmission of the reduction gear set during electric locking, the reduction gear set and the dial wheel are always kept in a tight meshing transmission relationship. Then, under the state that the motor stalls and adopts the staff to unblank, the user need insert the key and reverse rotation thumb wheel, and the thumb wheel will drive the reduction gear group simultaneously certainly and rotate. Since the reduction ratio of the reduction gear set is very large, the unlocking resistance of the key is also very large, which easily results in one of the following situations: 1. the unlocking resistance is too large, and the key cannot be smoothly rotated; 2. breaking off the key; 3. the internal gear of the speed reducer case is damaged, so that the speed reducer case generates large abrasion, and the electric unlocking function in the future is influenced.

SUMMERY OF THE UTILITY MODEL

For overcoming the not enough of prior art, the utility model aims to provide an intelligent tool to lock with idle running stroke, there is the stroke of one section idle running between its thumb wheel and the thumb wheel gear, and the thumb wheel rotates in the idle running stroke when manual unblanking to accomplish the transmission and unblank, the thumb wheel gear can not drive reduction gear group in step and rotate.

The utility model discloses a following technical scheme realizes:

an intelligent lockset with idle stroke, comprising: the lock comprises a driving mechanism, a reduction gear set, a thumb wheel gear, a thumb wheel, a lock tongue transmission mechanism, a lock tongue and a lock shell; the driving mechanism is used for driving the reduction gear set to rotate, and the reduction gear set is meshed with the shifting wheel gear and drives the shifting wheel gear to rotate; the thumb wheel gear comprises a tooth engaging part and an installation part, the installation part is positioned at the upper part of the tooth engaging part, the installation part comprises an annular groove and an idle stroke stop block, and the idle stroke stop block is in an arc shape and is fixedly arranged in the annular groove; the shifting wheel is pivoted in the shifting wheel gear, an idle sliding block is arranged on the side part of the shifting wheel, the idle sliding block is movably arranged in the annular groove and is suitable for moving along the annular groove, and the idle stroke stop block is suitable for abutting and pushing the idle sliding block; the outer edge of the poking wheel is also provided with a poking tongue which is suitable for abutting and poking the lock tongue transmission mechanism; the lock tongue transmission mechanism is in transmission connection with the lock tongue, and the lock tongue transmission mechanism is used for converting the rotary motion of the thumb wheel into the linear motion of the lock tongue.

Further, the driving mechanism comprises a driving motor and a speed reducer, and the speed reducer is in transmission connection with the speed reduction gear set.

Further, the lock tongue comprises a square tongue, the lock tongue transmission mechanism comprises a square tongue transmission mechanism, and the shifting tongue comprises a first shifting tongue; the dead bolt drive mechanism includes: the square tongue shifting piece, the central shaft of the square tongue shifting piece, the square tongue sliding pin and the square tongue supporting piece; the central shaft of the square bolt shifting piece is fixedly arranged in the lock shell, and the square bolt shifting piece is rotatably connected to the central shaft of the square bolt shifting piece; the edge of the square tongue shifting piece is provided with an inverted U-shaped notch; the first shifting tongue is arranged in the opening, and the opening is shifted through rotation, so that the square tongue shifting piece rotates around the central shaft of the square tongue shifting piece; one end of the square tongue shifting piece is also fixedly connected with a square tongue sliding pin, and a sliding pin groove is formed in the square tongue supporting piece; the square tongue sliding pin is movably arranged in the sliding pin groove so as to drive the square tongue supporting piece to move; the square tongue supporting piece is also provided with a central shaft groove which is a horizontal strip-shaped notch, and the central shaft of the square tongue shifting piece is arranged in the central shaft groove so that the square tongue supporting piece can move in the horizontal direction and is fixed in the vertical direction; the square tongue is fixedly connected to the square tongue supporting sheet.

Furthermore, the lock tongue also comprises an oblique tongue, the lock tongue transmission mechanism also comprises an oblique tongue transmission mechanism, and the shifting tongue also comprises a second shifting tongue; the latch bolt transmission mechanism comprises: the device comprises an oblique tongue push rod, a fixed pin, an oblique tongue shifting piece central shaft, an oblique tongue slide rod and an oblique tongue slide rod connecting piece; one end of the latch bolt push rod is provided with a convex pushing part, the second shifting bolt is suitable for abutting and shifting the pushing part, a vertical shaft groove is formed in the latch bolt push rod, a fixing pin is arranged on the square bolt supporting piece, and the vertical shaft groove is movably arranged outside the fixing pin and is suitable for vertically sliding along the fixing pin; the central shaft of the latch bolt shifting piece is fixedly arranged in the lock shell, and the latch bolt shifting piece is rotatably connected to the central shaft of the latch bolt shifting piece; one end of the latch bolt shifting piece is hinged with the latch bolt push rod, and the other end of the latch bolt shifting piece is abutted against the latch bolt sliding rod connecting piece, so that the latch bolt push rod pushes the latch bolt shifting piece to rotate and drives the latch bolt sliding rod connecting piece to move; a horizontal sliding groove is formed in the lock shell, and the latch bolt sliding rod connecting piece is horizontally and movably arranged in the horizontal sliding groove so as to be movable in the horizontal direction and fixed in the vertical direction; one end of the latch bolt sliding rod is fixedly connected to the latch bolt sliding rod connecting piece, and the other end of the latch bolt sliding rod is fixedly connected with the latch bolt.

Further, the intelligent lock with the idle stroke further comprises a latch bolt rebounding mechanism; the inclined tongue rebounding mechanism comprises an inclined tongue spring and a spring blocking piece, and the inclined tongue spring is sleeved outside the inclined tongue sliding rod so as to drive the inclined tongue spring to move horizontally; the spring retaining sheet is fixedly arranged in the lock shell, and one end of the latch spring abuts against the spring retaining sheet.

Compared with the prior art, the utility model discloses the beneficial effect that can reach does: when the electric lock is carried out, the motor rotates forwards, and the thumb wheel gear rotates towards the locking direction through the transmission of the reduction gear set; in the process of rotating the thumb wheel gear, one contact surface of the idle running stop block abuts against the idle slide block, and the thumb wheel is rotated by pushing the idle slide block to realize locking; after the locking is finished, the motor reversely rotates to reset, and the idle running stop block rotates in the opposite direction (namely the unlocking direction), so that the original abutting surface is far away from the idle running slide block and generates an idle running gap; at the moment, the thumb wheel is rotated towards the unlocking direction by a key, and the thumb wheel can be abutted against the idle stroke stop block again after the thumb wheel finishes the idle stroke; in the idle stroke, the shifting bolt drives the lock bolt to complete the unlocking action. In the utility model, the poking wheel completes the unlocking action within the idle stroke, and the poking wheel gear and the reduction gear set can not be jacked in the process, namely, the key can not receive the resistance of meshing between the gears in the rotating process, so that the unlocking is more labor-saving and convenient; meanwhile, the reduction gear cannot be forced to jack, damage to the reduction gear, the speed reducer and the motor is avoided, and the use experience, the product life and the stability of the lockset are improved generally.

Drawings

FIG. 1 is a first perspective view of a thumb wheel;

FIG. 2 is a second perspective view of the thumb wheel;

FIG. 3 is a perspective view of a thumb wheel gear;

FIG. 4a is a schematic view of the lock set in a state where both the latch bolt and the dead bolt are locked;

FIG. 4b is a schematic view of the thumb wheel and thumb wheel gear engaged in the condition of FIG. 4 a;

FIG. 5a is a schematic view of the lock set in a state where both the latch bolt and the dead bolt are locked and the motor is reset;

FIG. 5b is a schematic view of the thumb wheel and thumb wheel gear engaged in the condition of FIG. 5 a;

FIG. 6a is a schematic view showing the lock set in a state of being locked on the latch bolt and unlocked on the dead bolt;

FIG. 6b is a schematic view of the entire lock in a state where both the latch bolt and the dead bolt are unlocked;

FIG. 6c is a schematic view of the thumb wheel and thumb wheel gear engaged in the condition of FIG. 6 b;

FIG. 7a is a schematic view of the dead bolt actuator in a dead bolt lock position;

FIG. 7b is a schematic view of the dead bolt actuator in a dead bolt unlocked state;

FIG. 8 is an exploded view of the dead bolt drive mechanism;

FIG. 9a is a schematic view of the latch bolt actuator in a latched state of the latch bolt;

FIG. 9b is a schematic view of the skew bolt driving mechanism in a skew bolt unlocked state;

FIG. 10 is an exploded view of the latch bolt actuator.

In the figure: 10. a thumb wheel gear; 11. an annular groove; 12. an idle travel stop; 121. a, a contact surface; 122. b, contact surface; 20. a thumb wheel; 21. an idle slide; 211. a contact surface; 212. b, contact surface; 22. a first pulling tongue; 23. a second pulling tongue; 30. a latch bolt; 40. a square tongue; 50. a lock housing; 51. a horizontal chute; 60. a square tongue plectrum; 61. opening the gap; 70. a central shaft of the square tongue shifting piece; 80. a dead bolt sliding pin; 90. a tongue support piece; 91. a sliding pin slot; 92. a central shaft groove; 100. a latch bolt push rod; 101. a pushing part; 102. a vertical shaft groove; 110. a fixing pin; 120. a latch-tongue poking piece; 130. a central shaft of the latch pull piece; 140. a latch slide bar; 150. a connecting sheet of the latch bolt sliding rod; 160. a latch spring; 170. a spring catch; 180. a drive mechanism; 190. a reduction gear set.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

Referring to fig. 1-6, the utility model discloses an intelligent lockset with idle running stroke, including actuating mechanism 180, reduction gear set 190, thumb wheel gear 10, thumb wheel 20, spring bolt drive mechanism, spring bolt and tool to lock shell 50.

The driving mechanism 180 is used for driving the reduction gear set 190 to rotate, and the reduction gear set 190 is meshed with the thumb wheel gear 10; the driving mechanism 180 drives the thumb wheel gear 10 to rotate through the transmission of the reduction gear set 190.

Referring to fig. 1 to 3, the thumb wheel gear 10 includes a meshing portion with a gear and transmitting with the reduction gear set 190, and a mounting portion located above the meshing portion for mounting the thumb wheel 20; the mounting part comprises an annular groove 11 and an idle running stop 12, the idle running stop 12 is arc-shaped and is fixedly arranged in the annular groove 11, and the idle running stop 12 protrudes upwards, so that the groove part of the annular groove 11 is also arc-shaped to form a section of sliding track. The thumb wheel 20 is pivoted in the thumb wheel gear 10, the side part of the thumb wheel 20 is provided with an idle slide block 21, the idle slide block 21 is movably arranged in the annular groove 11 and is suitable for moving along the annular groove 11, therefore, when the thumb wheel gear 10 rotates, the annular groove 11 and the idle slide block 21 can relatively rotate, and the idle stroke stop 12 can be abutted against or far away from the idle slide block 21.

Specifically, when the idle stroke stopper 12 and the idle slider 21 are in a disengaged relationship, the dial wheel 20 is not moved while the dial wheel gear 10 is rotated; when the idle stroke stopper 12 abuts against and pushes the idle slider 21, the dial gear 10 and the dial 20 rotate synchronously. The outer edge of the thumb wheel 20 is also provided with a thumb bolt, the thumb bolt can abut against and poke a lock bolt transmission mechanism along with the rotation of the thumb wheel 20, and the lock bolt transmission mechanism is a mechanism with the rotation motion being the linear motion and is in transmission connection with the lock bolt; therefore, when the thumb wheel 20 rotates, the lock tongue can do telescopic motion through the transmission of the lock tongue transmission mechanism, and the unlocking and locking functions are completed.

For ease of understanding, the following illustrative descriptions are made: in one embodiment of the present invention, the idle stroke stop 12 includes an a contact surface 121 and a B contact surface 122, and the idle slider 21 includes an a contact surface 211 and a B contact surface 212. When locking: referring to fig. 4b, the motor drives the thumb wheel gear 10 to rotate counterclockwise, and the contact surface a 121 of the idle stroke stop 12 gradually approaches the contact surface a 211 of the idle slider 21, and then abuts against and pushes the thumb wheel 20 to rotate counterclockwise, during which the thumb bolt drives the lock bolt to unlock (as for the transmission process between the thumb bolt and the lock bolt, which will be explained in detail later, only the relative motion relationship between the thumb wheel 20 and the thumb wheel gear 10 is explained); after the locking is completed, referring to fig. 5B, the motor is reversely rotated and reset, the contact surface a 121 is far away from the contact surface a 211, an idle stroke is generated between the contact surfaces a and a, and the contact surface B122 abuts against the contact surface B212. When the key is unlocked: the key drives the thumb wheel 20 to rotate clockwise, the thumb wheel 20 starts to run an idle running stroke, the contact surface a 211 gradually approaches the contact surface A121, and meanwhile, the bolt is reversely driven in the whole process of the bolt poking; after the idle stroke is completed, referring to fig. 6c, the contact surface 211 a again abuts against the contact surface 121 a, the toggle bolt also completes driving the lock bolt, and the lock bolt completes unlocking. As for the transmission mode between the key and the thumb wheel 20, it is a common technique in the art, and is not in the improvement of the present invention, and will not be described herein. The utility model discloses if do not adopt the staff unblock after locking, also can with the motor unblock: at this time, the motor continues to rotate reversely, and referring to fig. 4B, as the B contact surface 122 is already abutted on the B contact surface 212, once the motor continues to rotate reversely, the B contact surface 122 will push the B contact surface 212 clockwise, so that the thumb wheel 20 rotates reversely, the latch is driven, and the unlocking is completed.

Therefore, the design of the idle rotation structure can be suitable for manual unlocking by a key and also suitable for continuous unlocking by a motor. It should be noted that, as for the specific lengths of the idle stroke stopper 12 and the idle slider 21, the specific length of the idle stroke needs to be designed according to specific working conditions; because different lock tongue transmission mechanisms are used, the rotation angle of the thumb wheel 20 required for unlocking is different, and the thumb tongue can finish unlocking only by ensuring within an idle running. Therefore, several specific values should not be as right the utility model discloses a restriction, all adopt this idle running structure can accomplish unblanking, all be in the utility model discloses a protection within range.

In a preferred embodiment, the driving mechanism 180 includes a driving motor and a speed reducer, and the speed reducer is in transmission connection with the speed reduction gear set 190.

The following provides preferred embodiments of the deadbolt actuation mechanism: the lock tongue comprises a square tongue 40 and a latch bolt 30; correspondingly, the lock tongue transmission mechanism also comprises a square tongue transmission mechanism and an oblique tongue transmission mechanism respectively; the dial wheel 20 comprises a first dial tongue 22 and a second dial tongue 23, which respectively dial the square tongue transmission mechanism and the oblique tongue transmission mechanism.

Referring to fig. 4a, 5a, 6b, 7a, 7b, and 8, the dead bolt transmission mechanism includes: a square tongue shift piece 60, a square tongue shift piece central shaft 70, a square tongue slide pin 80 and a square tongue support piece 90. Wherein, the dead bolt shifting piece central shaft 70 is fixedly arranged in the lock shell 50, and the dead bolt shifting piece 60 is rotatably connected on the dead bolt shifting piece central shaft 70; the edge of the square tongue shifting piece 60 is provided with an inverted U-shaped notch 61, the first shifting tongue 22 is arranged in the notch 61, and the square tongue shifting piece 60 can rotate around the square tongue shifting piece central shaft 70 by rotating and shifting the notch 61 through the first shifting tongue 22. The shape of the opening 61 is convenient for the first shifting tongue 22 to shift in two opposite directions, so as to respectively unlock and lock the square tongue 40.

One end of the square tongue pulling piece 60 is also fixedly connected with a square tongue sliding pin 80, so that the square tongue sliding pin 80 can rotate along with the rotation of the square tongue pulling piece 60; the square tongue supporting piece 90 is provided with a sliding pin groove 91, the sliding pin groove 91 is an arc groove extending obliquely downwards, and the square tongue sliding pin 80 is movably arranged in the sliding pin groove 91, so that the rotation of the square tongue sliding pin 80 can drive the sliding pin groove 91 to move, and the square tongue supporting piece 90 is driven to move.

The dead bolt supporting sheet 90 is also provided with a central shaft groove 92, the central shaft groove 92 is a horizontal strip-shaped notch, and the dead bolt shifting sheet central shaft 70 is arranged in the central shaft groove 92; therefore, when the support piece 90 moves, the central shaft groove 92 is limited by the central shaft 70 of the support piece, so that the support piece 90 is movable in the horizontal direction and fixed in the vertical direction, and the rotation of the support piece 60 is converted into the linear motion of the support piece 90. The square tongue 40 is fixedly connected to the square tongue supporting piece 90 and is driven by the square tongue supporting piece 90 horizontally to complete the extension and contraction.

The specific working principle of the motion mechanism of the dead bolt 40 is as follows: in one embodiment, referring to fig. 7 a-7 b, when unlocking, the first toggle bolt 22 rotates clockwise, which drives the toggle bolt paddle 60 to rotate clockwise; at this time, the dead bolt slide pin 80 also rotates synchronously and applies a downward force to the slide pin groove 91; since the support piece 90 is movable in the horizontal direction and fixed in the vertical direction, the support piece 90 will move to the right, and the square tongue 40 will retract to unlock. On the contrary, when locking, the first toggle bolt 22 rotates counterclockwise to drive the bolt toggle piece 60 to rotate counterclockwise, the bolt sliding pin 80 applies an upward oblique force to the sliding pin slot 91, the bolt support piece 90 is limited and moves leftward, and the bolt 40 extends outward to realize locking.

Referring to fig. 4a, 5a, 6b, 9a, 9b, 10, the latch bolt transmission mechanism includes: the latch bolt comprises a latch bolt push rod 100, a fixed pin 110, a latch bolt shifting piece 120, a latch bolt shifting piece central shaft 130, a latch bolt slide rod 140 and a latch bolt slide rod connecting piece 150. Wherein, one end of the latch bolt push rod 100 is provided with a convex pushing part 101, the second pulling bolt 23 is suitable for abutting and pulling the pushing part 101, and when the first pulling bolt 22 is separated from the gap 61 of the square bolt pulling sheet 60, the second pulling bolt 23 abuts on the pushing part 101. The latch bolt push rod 100 is provided with a vertical shaft groove 102, the support piece 90 is provided with a fixed pin 110, and the vertical shaft groove 102 is movably arranged outside the fixed pin 110 and is suitable for vertically sliding along the fixed pin 110. Therefore, the rotation of the second pulling tongue 23 will drive the latch pushing rod 100 to move vertically along the fixed pin 110.

The latch bolt shifting piece central shaft 130 is fixedly arranged in the lock shell 50, and the latch bolt shifting piece 120 is rotatably connected to the latch bolt shifting piece central shaft 130 and can rotate around the same; one end of the latch bolt shifting piece 120 is hinged with the latch bolt push rod 100, and the other end is abutted with the latch bolt slide rod connecting piece 150, so that when the latch bolt push rod 100 pushes the latch bolt shifting piece 120 to rotate, the latch bolt shifting piece 120 rotates and pushes the latch bolt slide rod connecting piece 150 to move.

The lock shell 50 is provided with a horizontal sliding groove 51, and the latch bolt sliding rod connecting piece 150 is horizontally and movably arranged in the horizontal sliding groove 51, so that the latch bolt sliding rod connecting piece 150 moves in the horizontal direction and is fixed in the vertical direction, and the rotation of the latch bolt shifting piece 120 can drive the latch bolt sliding rod connecting piece 150 to move horizontally. Meanwhile, one end of the latch bolt slide bar 140 is fixedly connected to the latch bolt slide bar connecting piece 150, and the other end is fixedly connected to the latch bolt 30, so that the latch bolt 30 can also move horizontally to realize extension and retraction.

The specific working principle of the oblique tongue transmission mechanism is as follows: in one embodiment, referring to fig. 9 a-9 b, after the locking of the latch 40 is completed, the latch support 90 and the fixed pin 110 are retracted, and the fixed pin 110 drives the latch slide 140 to rotate to the position abutting against the second shift latch 23 because the latch slide 140 is hinged to the latch paddle 120. Then, the latch bolt 30 is unlocked, the second shifting bolt 23 rotates clockwise and shifts the latch bolt push rod 100, the latch bolt push rod 100 moves upwards along the fixed shaft through the vertical shaft groove 102 to drive the latch bolt shifting piece 120 to rotate clockwise, so that the latch bolt slide rod connecting piece 150 moves rightwards along the horizontal sliding groove 51; therefore, the latch bolt slide bar 140 connected to the latch bolt slide bar connection piece 150 and the latch bolt 30 connected to the latch bolt slide bar 140 also move rightward, and the latch bolt 30 retracts to realize unlocking. The principle of locking the latch 30 is explained below.

In the present embodiment, both the dead bolt transmission mechanism and the dead bolt transmission mechanism employ a crank link mechanism or a combination of changes in the crank link mechanism to convert the rotational motion of the toggle bolt into the linear motion of the dead bolt 40 and the dead bolt 30. It is understood that other transmission mechanisms, such as a rack and pinion mechanism, a thread rolling screw mechanism, etc., which can achieve the same function, are all known and can be implemented by those skilled in the art, and therefore, they are not listed in this embodiment. However, it should be understood that the specific structures of the latch bolt transmission mechanism and the dead bolt transmission mechanism provided in the present embodiment are not the only embodiments, and do not limit the scope of the present invention. In addition, in the embodiment, the thumb wheel 20 with a double-thumb-tongue structure is adopted, and of course, the thumb wheel 20 with a single thumb-tongue can also be adopted, and the square tongue 40 and the oblique tongue 30 are sequentially dialed through one thumb-tongue, so that only the idle stroke needs to be properly increased.

As a preferred embodiment, the present invention further comprises a latch bolt rebounding mechanism for rebounding and locking the latch bolt 30 after being unlocked: the latch tongue rebounding mechanism comprises a latch tongue spring 160 and a spring blocking piece 170, wherein the latch tongue spring 160 is sleeved on the latch tongue sliding rod 140, so that the latch tongue spring 160 can be driven to horizontally move when the latch tongue sliding rod 140 horizontally moves; the spring stop 170 is fixedly disposed within the lock housing 50, and one end of the latch spring 160 abuts against the spring stop 170.

The specific working principle of locking the latch 30 is as follows: in one embodiment, referring to fig. 9 a-9 b, after the latch 30 is unlocked, the latch spring 160 also moves horizontally to the right, and the latch spring 160 is compressed and has elastic potential energy due to the abutting limit of the spring stop 170. When the second toggle tongue 23 stops driving the toggle tongue 30, the toggle tongue spring 160 rebounds and completes the locking.

Through the detailed explanation of the above embodiment, it can be understood that, in the present invention, the dial wheel 20 completes the unlocking action within the idle stroke, and during the unlocking action, the dial wheel gear 10 and the reduction gear set 190 will not be pushed, i.e. the key will not receive the resistance of the meshing between the gears during the rotation process, so that the unlocking is more labor-saving and convenient; meanwhile, the reduction gear cannot be forced to jack, damage to the reduction gear, the speed reducer and the motor is avoided, and the use experience, the product life and the stability of the lockset are improved generally.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims (5)

1. An intelligent lockset with idle stroke, comprising: the lock comprises a driving mechanism, a reduction gear set, a thumb wheel gear, a thumb wheel, a lock tongue transmission mechanism, a lock tongue and a lock shell;

the driving mechanism is used for driving the reduction gear set to rotate, and the reduction gear set is meshed with the shifting wheel gear and drives the shifting wheel gear to rotate;

the thumb wheel gear comprises a tooth engaging part and an installation part, the installation part is positioned at the upper part of the tooth engaging part, the installation part comprises an annular groove and an idle stroke stop block, and the idle stroke stop block is in an arc shape and is fixedly arranged in the annular groove; the shifting wheel is pivoted in the shifting wheel gear, an idle sliding block is arranged on the side part of the shifting wheel, the idle sliding block is movably arranged in the annular groove and is suitable for moving along the annular groove, and the idle stroke stop block is suitable for abutting and pushing the idle sliding block; the outer edge of the poking wheel is also provided with a poking tongue which is suitable for abutting and poking the lock tongue transmission mechanism;

the lock tongue transmission mechanism is in transmission connection with the lock tongue, and the lock tongue transmission mechanism is used for converting the rotary motion of the thumb wheel into the linear motion of the lock tongue.

2. The intelligent lockset having an idle stroke of claim 1 wherein said drive mechanism comprises a drive motor and a speed reducer, said speed reducer being drivingly connected to said speed reduction gear set.

3. The intelligent lockset having lost motion travel of claim 1 wherein said locking bolt comprises a dead bolt, said locking bolt actuator comprises a dead bolt actuator, and said deadbolt comprises a first deadbolt;

the dead bolt drive mechanism includes: the square tongue shifting piece, the central shaft of the square tongue shifting piece, the square tongue sliding pin and the square tongue supporting piece;

the central shaft of the square bolt shifting piece is fixedly arranged in the lock shell, and the square bolt shifting piece is rotatably connected to the central shaft of the square bolt shifting piece; the edge of the square tongue shifting piece is provided with an inverted U-shaped notch; the first shifting tongue is arranged in the opening, and the opening is shifted through rotation, so that the square tongue shifting piece rotates around the central shaft of the square tongue shifting piece;

one end of the square tongue shifting piece is also fixedly connected with a square tongue sliding pin, and a sliding pin groove is formed in the square tongue supporting piece; the square tongue sliding pin is movably arranged in the sliding pin groove so as to drive the square tongue supporting piece to move; the square tongue supporting piece is also provided with a central shaft groove which is a horizontal strip-shaped notch, and the central shaft of the square tongue shifting piece is arranged in the central shaft groove so that the square tongue supporting piece can move in the horizontal direction and is fixed in the vertical direction; the square tongue is fixedly connected to the square tongue supporting sheet.

4. The intelligent lockset having lost motion travel of claim 3 wherein said locking bolt further comprises a latch bolt, said locking bolt actuator further comprises a latch bolt actuator, said deadbolt further comprising a second deadbolt;

the latch bolt transmission mechanism comprises: the device comprises an oblique tongue push rod, a fixed pin, an oblique tongue shifting piece central shaft, an oblique tongue slide rod and an oblique tongue slide rod connecting piece;

one end of the latch bolt push rod is provided with a convex pushing part, the second shifting bolt is suitable for abutting and shifting the pushing part, a vertical shaft groove is formed in the latch bolt push rod, a fixing pin is arranged on the square bolt supporting piece, and the vertical shaft groove is movably arranged outside the fixing pin and is suitable for vertically sliding along the fixing pin;

the central shaft of the latch bolt shifting piece is fixedly arranged in the lock shell, and the latch bolt shifting piece is rotatably connected to the central shaft of the latch bolt shifting piece; one end of the latch bolt shifting piece is hinged with the latch bolt push rod, and the other end of the latch bolt shifting piece is abutted against the latch bolt sliding rod connecting piece, so that the latch bolt push rod pushes the latch bolt shifting piece to rotate and drives the latch bolt sliding rod connecting piece to move;

a horizontal sliding groove is formed in the lock shell, and the latch bolt sliding rod connecting piece is horizontally and movably arranged in the horizontal sliding groove so as to be movable in the horizontal direction and fixed in the vertical direction; one end of the latch bolt sliding rod is fixedly connected to the latch bolt sliding rod connecting piece, and the other end of the latch bolt sliding rod is fixedly connected with the latch bolt.

5. The intelligent lock with lost motion of claim 4, further comprising a latch rebound mechanism; the inclined tongue rebounding mechanism comprises an inclined tongue spring and a spring blocking piece, and the inclined tongue spring is sleeved outside the inclined tongue sliding rod so as to drive the inclined tongue spring to move horizontally; the spring retaining sheet is fixedly arranged in the lock shell, and one end of the latch spring abuts against the spring retaining sheet.

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