CN215255283U - Emergency unlocking structure - Google Patents

Abstract

The utility model relates to an emergency unlocking structure, which comprises a transmission mechanism and a locking piece, wherein the transmission mechanism is linked with a mechanical lock cylinder, the locking piece is used for locking the transmission mechanism, one side of the locking piece is connected with a mechanical password mechanism, the mechanical password mechanism comprises an input assembly for inputting a password from the outside, and an unlocking password is preset in the mechanical password mechanism; under the linkage of the mechanical password mechanism, the locking piece comprises a locking mode and an unlocking mode, when the password input by the input assembly is different from the unlocking password, the locking piece is in the locking mode, and the transmission mechanism is locked by the locking piece; when the password input by the input assembly is consistent with the unlocking password, the locking piece is in the unlocking mode, and the locking effect of the transmission mechanism is relieved by the locking piece. The utility model has the characteristics of the convenience is high, easily installation etc.

Description

Emergency unlocking structure

Technical Field

The utility model relates to a tool to lock structure especially relates to an emergent structure of unblanking.

Background

According to the national standard, the intelligent lock sold in China must be equipped with a mechanical key as an emergency unlocking in special cases. The above-mentioned regulations are mainly from the safety point of view, such as: when the electric quantity of the intelligent lock is exhausted or a circuit fault occurs, the intelligent lock can be unlocked through a mechanical key for emergency; when emergencies such as fire occur, high temperature can cause the intelligent lock to be out of order, and the mechanical key is used for unlocking at the moment to enable people to escape more easily.

Referring to fig. 1 and 2, the common full-automatic intelligent lock includes a lock head mechanism 3 and a motor mechanism 4, the lock head mechanism 3 includes a lock head housing 31, a lock cylinder dial wheel 32 installed in the lock head housing 31, and two lock cylinders respectively located at two sides of the lock cylinder dial wheel 32. For the sake of convenience of distinction, the two lock cylinders are named a mechanical lock cylinder 33 and an electronic lock cylinder 34, respectively, and the motor mechanism 4 is unlocked by rotating the electronic lock cylinder 34. The inner wall of the lock cylinder thumb wheel 32 is provided with a connecting groove 321, the connecting groove 321 penetrates through the lock cylinder thumb wheel 32 along the axial direction of the lock cylinder thumb wheel 32, both the mechanical lock cylinder 33 and the electronic lock cylinder 34 are provided with a limiting clamping sleeve 35 for inserting into the connecting groove 321, and the limiting clamping sleeve 35 only has the freedom degree of sliding along the axial direction relative to the mechanical lock cylinder 33 or the electronic lock cylinder 34; when the mechanical key is used for unlocking, the mechanical key is inserted into the mechanical lock cylinder 33, a user presses the mechanical key, the limiting clamping sleeve 35 of the mechanical lock cylinder 33 is inserted into the connecting groove 321 of the lock cylinder thumb wheel 32, the mechanical lock cylinder 33 and the lock cylinder thumb wheel 32 are limited in the circumferential direction at the moment, the user rotates the mechanical key to drive the lock cylinder thumb wheel 32 to rotate, and therefore the unlocking action is completed.

If the full-automatic intelligent lock breaks down, the user forgets to carry the mechanical key, the user can not open the intelligent lock, and even the intelligent lock can be forced to be unlocked to cause the intelligent lock to be scrapped, so that the mechanical key is adopted for emergency unlocking, and certain inconvenience is realized.

SUMMERY OF THE UTILITY MODEL

The utility model discloses mainly solve the technical problem that the mechanical key that prior art exists is not convenient for emergent unblank, provide an emergent structure of unblanking.

In order to solve the technical problem and achieve the purpose of the utility model, the utility model provides an emergency unlocking structure, which comprises a transmission mechanism and a locking piece, wherein the transmission mechanism is linked with a mechanical lock cylinder, the locking piece is used for locking the transmission mechanism, one side of the locking piece is connected with a mechanical password mechanism, the mechanical password mechanism comprises an input assembly for inputting a password from the outside, and an unlocking password is preset in the mechanical password mechanism; under the linkage of the mechanical password mechanism, the locking piece comprises a locking mode and an unlocking mode, when the password input by the input assembly is different from the unlocking password, the locking piece is in the locking mode, and the transmission mechanism is locked by the locking piece; when the password input by the input assembly is consistent with the unlocking password, the locking piece is in the unlocking mode, and the locking effect of the transmission mechanism is relieved by the locking piece.

In an implementation manner, the mechanical combination mechanism further includes a first limiting member for limiting the locking member, the input assembly includes a combination shaft and at least one combination dial plate sleeved outside the combination shaft, the combination dial plate is provided with a combination identifier, the first limiting member is arranged in cooperation with the input assembly, and under linkage of the input assembly, a position state of the first limiting member includes a first position and a second position; when the first limiting member is located at the first position, the first limiting member limits the locking member to be in the locking mode, and when the first limiting member is located at the second position, the first limiting member relieves the limitation on the locking member.

In an embodiment, the mechanical combination mechanism further includes a first elastic member, and the first elastic member is configured to drive the first limiting member to move from the second position to the first position.

In an implementation mode, the transmission mechanism comprises a transmission wheel and a lock head shifting piece, a first end of the lock head shifting piece is connected to the transmission wheel, a second end of the lock head shifting piece is used for being connected with a mechanical lock cylinder, and a locking groove is formed in the transmission wheel; when the locking piece is in the locking mode, the locking piece is inserted into the locking groove to limit the movement of the transmission wheel, and when the locking piece is in the unlocking mode, the locking piece is separated from the locking groove to release the limitation on the transmission wheel.

In an implementation manner, a second elastic member is disposed on a side of the locking member away from the locking groove, and the second elastic member is used for driving the locking member to abut against the locking groove.

In an implementation mode, each password drive plate is connected with a locking wheel, the locking wheel is sleeved on the outer side of the password shaft, the outer wall of the locking wheel is provided with a limiting groove, the limiting groove corresponds to one password mark on the password drive plate, and a limiting block used for abutting against the limiting groove is arranged on the locking piece; when the password input by the input component is different from the unlocking password, the limiting block abuts against the limiting groove, and the first limiting piece is located at the first position; when the password input by the input component corresponds to the unlocking password, the limiting block is separated from the limiting groove, and the first limiting piece is located at the second position.

In an implementation mode, the outside joint cover of the first end of tapered end plectrum is equipped with the axle sleeve, the drive wheel cover is located the outside of axle sleeve, the drive wheel is fixed for the interval of lock core thumb wheel, drive mechanism still including set up in the drive wheel with the elastic component that resets between the axle sleeve, the elastic component that resets is used for the drive the tapered end plectrum is kept away from the motion of lock core thumb wheel to accomplish drive mechanism's action of resetting.

In an implementation manner, the transmission mechanism further includes a knob for a user to operate and complete an unlocking action, a second limiting member is disposed between the knob and the first end of the lock pick, the second limiting member includes an overload stop pin and an overload spring, the overload spring is circumferentially limited with respect to the shaft sleeve, an accommodating groove for accommodating the overload stop pin is disposed on one side of the knob close to the shaft sleeve, the overload spring is used for pushing the overload stop pin to abut against the accommodating groove, and one side of the overload stop pin close to the accommodating groove is set as an arc surface.

In an implementation manner, the lock dial is connected to the shaft sleeve through a third limiting part, the third limiting part is used for limiting the axial relative displacement between the shaft sleeve and the lock dial, a plurality of first clamping grooves are formed in the lock dial, the first clamping grooves are arranged at intervals along the length direction of the lock dial, a second clamping groove is formed in the shaft sleeve, a first section of the third limiting part is connected to the first clamping groove in a clamped manner, and a second section of the third limiting part is connected to the second clamping groove in a clamped manner.

In an implementation manner, the transmission mechanism further includes a connecting pin, two ends of the connecting pin are connected to the mechanical lock cylinder, a connecting hole penetrating through the lock pick is formed in the lock pick, the connecting pin is inserted into the connecting hole, and the size of the connecting hole along the length direction of the lock pick is larger than the diameter of the connecting pin.

Compared with the prior art, the utility model relates to an emergent structure of unblanking has following beneficial effect:

1. by arranging the mechanical password mechanism, the mechanical password mechanism can replace a traditional mechanical key, a user inputs a password through the input assembly to unlock, when the input password is different from the unlocking password, the locking piece is in a locking mode, and the transmission mechanism cannot complete unlocking action; when the input password is the same as the unlocking password, the locking piece is in an unlocking mode, and the transmission mechanism can complete unlocking action; the emergency unlocking mode of the intelligent lock is replaced by a mechanical password from a traditional mechanical key, so that the situation that unlocking cannot be performed due to forgetting of the key can be avoided, and the convenience of the intelligent lock under the emergency unlocking situation is improved;

2. by arranging the first limiting piece, the first limiting piece is matched with the input assembly, when the input password is different from the unlocking password, the first limiting piece is positioned at the first position, and the transmission mechanism cannot be unlocked; when the input password is the same as the unlocking password, the first limiting piece is positioned at the second position, and the transmission mechanism can be unlocked at the moment; therefore, the position state of the first limiting piece can be adjusted by comparing the password input from the outside with the unlocking password, so that the mode of the locking piece is changed, and whether the transmission mechanism completes the unlocking action or not is controlled;

3. by arranging the first elastic piece, the first limiting piece has a tendency of moving towards the first position, and can be kept at the first position under the condition of no external force interference, and at the moment, the first limiting piece has a limiting effect on the transmission mechanism, so that a user cannot open the intelligent lock;

4. by arranging the transmission wheel and the locking groove, the locking piece abuts against the locking groove in a locking mode, and the locking groove can be set to be different in shape, so that the locking piece can limit the freedom degree of rotation and/or sliding of the transmission wheel along the axial direction, and the transmission mechanism cannot be unlocked; when the locking piece is separated from the locking groove, the limiting effect of the locking piece on the transmission wheel is relieved, so that the transmission mechanism can complete unlocking action;

5. by arranging the second elastic piece, the locking piece is kept in a state of abutting against the locking groove under the action of the second elastic piece, so that the locking piece is in a locking mode under the condition of no external force interference, and the transmission mechanism cannot complete unlocking action, so that the actual use requirement is met;

6. by arranging the locking wheel, the limiting groove and the limiting block, when the password input from the outside is correct, the limiting block of the first limiting piece abuts against the limiting groove, the first limiting piece is located at the second position, the locking piece can be separated from the locking groove, and the transmission mechanism can complete unlocking; when the password input from the outside is wrong, the limiting block is separated from the limiting groove, the first limiting block is positioned at the first position, the locking piece cannot be separated from the locking groove, and the transmission mechanism cannot complete unlocking;

7. by arranging the reset elastic piece, after the unlocking of a user is finished, the lock head plectrum moves away from the lock cylinder plectrum under the action of the reset elastic piece, so that the lock head plectrum is reset to the position before the unlocking;

8. when the input password is wrong, the shaft sleeve cannot rotate due to the limiting effect of the mechanical password mechanism, the knob is pressed, the accommodating groove of the knob is abutted against the overload stop pin, so that the knob and the shaft sleeve are circumferentially limited, at the moment, if the torque force applied to the knob is large, the overload spring is contracted due to the cambered surface in overload, the overload stop pin is separated from the accommodating groove, and the knob idles, so that the overload protection performance of the transmission mechanism is improved, and the service life is prolonged;

9. the shaft sleeve and the lock head shifting piece are axially fixed by arranging the third limiting piece, and the total length of the lock head shifting piece and the shaft sleeve can be changed by replacing the first clamping groove clamped by the third limiting piece in the actual installation process; compared with an assembly mode that the total length of the lock head plectrum and the shaft sleeve is fixed, the mode has lower requirement on the size processing precision of the lock head plectrum, so that the requirement on the installation precision is reduced, and the installation is easy;

10. because the first clamping grooves on the lock head shifting piece are arranged at intervals, the size of the connecting hole is larger than the diameter of the connecting pin, and the connecting pin can be ensured to penetrate into the connecting hole in the actual installation process; if the section size of connecting hole is unanimous with the connecting pin, behind the third locating part card income first draw-in groove of tapered end plectrum, there is the axis deviation in the connecting hole of tapered end plectrum probably and the connecting pin, and the connecting pin can't insert in the connecting hole, and the assembly degree of difficulty grow.

Therefore, the utility model has the characteristics of the convenience is high, easily installation etc.

Drawings

FIG. 1 is a schematic structural diagram of a fully automatic intelligent lock in the prior art;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a schematic structural view of the present invention and a lock mechanism;

FIG. 4 is a schematic view of the assembled structure of the present invention;

FIG. 5 is an exploded view of the present invention;

FIG. 6 is a cross-sectional view of a mechanical code mechanism portion of the present invention;

FIG. 7 is a cross-sectional view of the lock pick and lock mechanism of the present invention;

fig. 8 is a cross-sectional view of a portion of a transmission mechanism according to the present invention.

The reference numbers in the figures illustrate: 1. a transmission mechanism; 11. a knob; 111. an accommodating groove; 12. a driving wheel; 121. a chute; 122. a columnar groove; 123. a locking groove; 13. a shaft sleeve; 131. a slider; 132. a second card slot; 1321. a blind groove section; 1322. a trough section; 14. a lock head plectrum; 141. a first card slot; 142. connecting holes; 15. a restoring elastic member; 16. a second limiting member; 161. an overload stop pin; 162. an overload spring; 17. a third limiting member; 18. a connecting pin; 2. a mechanical code mechanism; 21. an input component; 211. a password axis; 212. a password dial; 22. a password identification; 23. a first limit piece; 231. a limiting block; 24. a password setting rotating shaft; 25. a locking wheel; 251. a limiting groove; 26. a first elastic member; 27. a locking member; 28. a second elastic member; 3. a lock mechanism; 31. a lock head housing; 32. a lock cylinder dial wheel; 321. connecting grooves; 33. a mechanical lock cylinder; 34. an electronic lock cylinder; 341. a coil spring; 35. a limiting clamping sleeve; 4. a motor mechanism; 41. a drive motor; 42. a transmission box; 43. an electronic paddle; 44. a spacing pin; 5. a front panel; 51. a base; 52. a cover plate; 6. a back panel.

Detailed Description

To make the objects, features and advantages of the present invention more obvious and understandable, the embodiments of the present invention are described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.

Example (b):

FIG. 1 is a schematic diagram of a fully automatic intelligent lock in the prior art; FIG. 2 is an exploded view of FIG. 1; fig. 3 is a schematic structural diagram of the present invention and the lock mechanism 3.

Referring to fig. 3, an emergency unlocking structure includes a transmission mechanism 1 and a locking member 27 for locking the transmission mechanism 1, the transmission mechanism 1 is used for being inserted into a mechanical lock cylinder 33 (see fig. 2) of a lock mechanism 3, and the mechanical lock cylinder 33 is pushed to be inserted into a lock cylinder thumb wheel 32 and drives the lock cylinder thumb wheel 32 to rotate, so as to complete an unlocking action. One side of the locking piece 27 is connected with a mechanical code mechanism 2, the mechanical code mechanism 2 comprises an input component 21 for inputting codes from the outside, and an unlocking code is preset in the mechanical code mechanism 2. Under the linkage of the mechanical password mechanism 2, the locking piece 27 comprises a locking mode and an unlocking mode, in the unlocking mode, the password input by the input assembly 21 and the unlocking password are correspondingly set, and the locking piece 27 unlocks the transmission mechanism 1; in the locked mode, the combination input by the input unit 21 is set differently from the unlocking combination, and the lock member 27 locks the transmission mechanism 1.

The embodiment of the utility model provides a aim at replacing traditional mechanical key to emergent unblanking full-automatic intelligent lock through setting up mechanical code mechanism 2, locking piece 27 and drive mechanism 1, the mode of adopting the mechanical code, can in time unblank when the intelligence lock trouble, avoid forgetting mechanical key as far as and lead to the condition that can't unblank or unblank by force, it is more convenient.

Fig. 4 is an assembly schematic diagram after the installation of the present invention.

Referring to fig. 2 and 4, in a practical application scenario, the smart lock generally includes a front panel 5, a rear panel 6, a motor mechanism 4, and a lock mechanism 3, where the front panel 5 is fixedly installed at an outer side of the door, and the rear panel 6 is fixedly installed at an inner side of the door. Motor mechanism 4 installs on back panel 6, and tapered end mechanism 3 installs between front panel 5 and back panel 6, the embodiment of the utility model provides an install on front panel 5. According to different types of the smart lock, the smart lock can be classified into a fingerprint lock, an electronic password lock, a face recognition lock, and the like, and therefore, an input module (not shown in the figure) of the smart lock is correspondingly classified into a fingerprint input, an electronic password input, a face scanning input, and the like. The input module is installed on the front panel 5 and is electrically connected with the motor mechanism 4, so as to control whether the motor mechanism 4 works according to the input data of the user.

The motor mechanism 4 includes a driving motor 41, a transmission box 42, an electronic shifting piece 43, and a transmission structure (not shown in the figure) installed in the transmission box 42, the transmission box 42 is fixedly installed on the rear panel 6, and an output shaft of the driving motor 41 extends into the transmission box 42 and is connected with the transmission structure. The first end of the electronic shifting piece 43 is connected with the transmission structure, the second end is inserted into the electronic lock cylinder 34, the second end of the electronic shifting piece 43 is provided with a limit pin 44, the limit pin 44 penetrates through the electronic shifting piece 43 along the radial direction of the electronic lock cylinder 34, and two ends of the limit pin 44 are embedded into the inner wall of the electronic lock cylinder 34, so that the electronic lock cylinder 34 and the electronic shifting piece 43 cannot slide or rotate relatively. A spiral spring 341 (see fig. 7) is arranged between the electronic lock cylinder 34 and the position limiting sleeve 35 in the electronic lock cylinder 34, and the spiral spring 341 is used for pushing the position limiting sleeve 35 in the electronic lock cylinder 34 into the connecting groove 321 of the lock cylinder thumb wheel 32; the spacing clip 35 is located partially in the cylinder thumb wheel 32 and partially in the electronic cylinder 34 without interference from external forces.

When the intelligent lock is automatically opened through the input module, a user inputs input information through the input module; if the input information is correct, the input module controls the driving motor 41 to work, the driving motor 41 drives the electronic shifting piece 43 to rotate through the transmission structure, the electronic shifting piece 43 drives the electronic lock cylinder 34 to rotate, and the lock cylinder shifting wheel 32 synchronously rotates along with the electronic lock cylinder 34 as the limiting clamping sleeve 35 is partially positioned in the lock cylinder shifting wheel 32, so that the unlocking process is completed; if the input information is wrong, the input module controls the driving motor 41 to be in a stop state, so that the lock cannot be unlocked.

Fig. 5 is an exploded view of the present invention.

Referring to fig. 4 and 5, a base 51 and a cover 52 are provided in the front panel 5, the cover 52 is used for closing the base 51, and the mechanical code mechanism 2 and part of the transmission mechanism 1 are installed between the base 51 and the cover 52. The mechanical combination mechanism 2 further comprises a first limiting member 23 for limiting the locking member 27, the input assembly 21 comprises a combination shaft 211 and at least one combination dial 212 sleeved outside the combination shaft 211, the combination dial 212 is rotatably arranged relative to the combination shaft 211, and a plurality of different combination marks 22 are arranged on the outer peripheral wall of the combination dial 212 at intervals. The mechanical cipher mechanism 2 further comprises a cipher setting rotating shaft 24 installed in the base 51, the first end of the cipher shaft 211 is rotatably connected to the cipher setting rotating shaft 24, the second end of the cipher shaft 211 is rotatably connected to the inner wall of the base 51, and therefore the cipher shaft 211 is rotatably arranged in the base 51. The embodiment of the utility model provides an in, password dial 212 is equipped with six altogether, and the password sign 22 on same password dial 212 is Arabic numeral 0 ~ 9 respectively for mechanical password mechanism 2 has six passwords, thereby has a large amount of password combinations to supply the user to select, and the security is higher. Each code dial 212 is connected with a locking wheel 25, the outer wall of each locking wheel 25 is provided with a limiting groove 251, and the limiting groove 251 penetrates through the locking wheel 25 along the axial direction of the locking wheel 25. The width of the limiting groove 251 is gradually increased in the direction away from the locking wheel 25, the maximum width of the limiting groove 251 is less than or equal to the distance between two adjacent password marks 22, and the edges of the limiting groove 251 are in round angle smooth transition.

The first limiting member 23 is a long bar shape, and the first limiting member 23 is located on one side of the combination shaft 211 close to the cover plate 52 and is parallel to the combination shaft 211. Be equipped with the stopper 231 that a plurality of is used for butt locking wheel 25 outer wall on the first locating part 23, the shape of stopper 231 is identical with the shape of spacing groove 251, and the quantity of stopper 231 is unanimous with the quantity of locking wheel 25, the embodiment of the utility model provides an in, stopper 231 is equipped with six altogether and with locking wheel 25 one-to-one. The mechanical cipher mechanism 2 further includes two first elastic members 26, the two first elastic members 26 are respectively located at two ends of the first limiting member 23, the first elastic member 26 is a commonly used spiral spring, the first elastic member 26 is vertically disposed, and two ends of the first elastic member 26 respectively abut against the cover plate 52 and the first limiting member 23. Under the pushing of the first elastic element 26, the limiting block 231 of the first limiting element 23 abuts against the outer wall of the locking wheel 25. When the combination dials 212 are rotated to unlock, if the password mark 22 on any one of the combination dials 212 is wrongly input, the limiting block 231 of the first limiting member 23 cannot abut against the limiting groove 251, and at this time, the position of the first limiting member 23 is the first position, and the locking member 27 is in the locking mode; if the password marks 22 of all the password dials 212 are correctly input, the limiting block 231 of the first limiting member 23 abuts against the limiting groove 251, and the position of the first limiting member 23 is the second position, and the locking member 27 is in the unlocking mode. It will be appreciated that the second position is closer to the code axis 211 than the first position.

Fig. 6 is a cross-sectional view of a portion of a mechanical combination mechanism of the present invention.

Referring to fig. 5 and 6, the transmission mechanism 1 includes a knob 11, a transmission wheel 12 rotatably disposed in a base 51, a shaft sleeve 13, and a lock pick 14, wherein the transmission wheel 12 is sleeved outside the shaft sleeve 13, a first end of the lock pick 14 is inserted into the shaft sleeve 13, and a second end of the lock pick 14 is inserted into a mechanical lock cylinder 33 (see fig. 2). Two chutes 121 are formed in the inner wall of the driving wheel 12, the two chutes 121 are arranged oppositely, and the chutes 121 penetrate through one end of the driving wheel 12 close to the knob 11. Two sliding blocks 131 are oppositely arranged on the outer wall of the shaft sleeve 13, the sliding blocks 131 correspond to the sliding grooves 121 one by one, and the sliding blocks and the sliding grooves are in sliding fit, so that the transmission wheel 12 and the shaft sleeve 13 cannot rotate relatively. The transmission mechanism 1 further includes two elastic restoring members 15, the elastic restoring members 15 are also helical springs, and the two elastic restoring members 15 are respectively disposed in the two sliding grooves 121. The driving wheel 12 abuts against the inner side of the cover plate 52 due to the elastic force of the return elastic member 15, and the sleeve 13 abuts the knob 11 against the base 51.

The driving wheel 12 is provided with a second limiting member 16, the second limiting member 16 includes an overload stop pin 161 and an overload spring 162, the second limiting members 16 are provided with two groups, one end of the driving wheel 12 close to the knob 11 is provided with two cylindrical grooves 122 for placing the second limiting member 16, and a connecting line of the two cylindrical grooves 122 intersects with an axis of the driving wheel 12. The overload spring 162 is a conventional spiral spring, and the overload spring 162 is disposed in the cylindrical groove 122 and between the overload stop pin 161 and the bottom of the cylindrical groove 122. The overload stopper pin 161 protrudes from the end surface of the transmission wheel 12 under the supporting action of the overload spring 162, and the side of the overload stopper pin 161 away from the overload spring 162 is formed into a curved surface. One side of the knob 11 close to the driving wheel 12 is provided with two accommodating grooves 111 for accommodating the overload stop pin 161, a connecting line of the two accommodating grooves 111 intersects with an axis of the driving wheel 12, and the distances from the accommodating grooves 111 and the overload stop pin 161 to the axis of the driving wheel 12 are the same.

The section of the tapered end pulling piece 14 is approximately rectangular, the inner ring shape of the section of the shaft sleeve 13 is a rectangle slightly larger than the tapered end pulling piece 14, and the tapered end pulling piece 14 cannot rotate relatively after being inserted into the shaft sleeve 13. The lock pick 14 is connected to the shaft sleeve 13 through a third limit member 17, and the third limit member 17 is a common snap spring. Two sets of first slots 141 are formed in the lock pick 14, the two sets of first slots 141 are respectively located on two opposite sides of the lock pick 14, and the plurality of first slots 141 in the same set are arranged at equal intervals along the length direction of the lock pick 14. The outer wall of the shaft sleeve 13 is provided with a second clamping groove 132, the second clamping groove 132 extends along the circumferential direction of the shaft sleeve 13, the second clamping groove 132 comprises a blind groove section 1321 and a through groove section 1322 connected to the blind groove section 1321, and the through groove section 1322 penetrates through the inner wall and the outer wall of the shaft sleeve 13; when the lock pick 14 is connected to the shaft sleeve 13, the first section of the third limiting member 17 passes through the through slot 1322 and is clamped in the first clamping slot 141, and the second section of the third limiting member 17 is clamped in the blind slot 1321, so that the shaft sleeve 13 and the lock pick 14 cannot move relatively in the axial direction.

FIG. 7 is a cross-sectional view of the lock pick and lock mechanism of the present invention; fig. 8 is a cross-sectional view of a portion of the transmission mechanism of the present invention.

Referring to fig. 7 and 8, the transmission mechanism 1 further includes a connecting pin 18 for connecting the lock pick 14 and the mechanical lock cylinder 33, a connecting hole 142 penetrating through the lock pick 14 is formed at an end of the lock pick 14, the connecting pin 18 is inserted into the connecting hole 142, and both ends of the connecting pin 18 are embedded in an inner wall of the mechanical lock cylinder 33. If the connecting hole 142 and the connecting pin 18 have the same cross-sectional dimension, the connecting pin 18 may not be inserted into the connecting hole 142 after the third limiting member 17 is snapped into the first engaging groove 141 of the lock dial 14. Therefore, the dimension of the coupling hole 142 in the length direction of the lock cylinder paddle 14 is larger than the diameter of the coupling pin 18, and the above-mentioned problem is avoided as much as possible. The connecting hole 142 may be a round hole or a waist-shaped hole, in the embodiment of the present invention, the connecting hole 142 is a waist-shaped hole, and the length direction of the connecting hole 142 is consistent with the length direction of the lock pick 14.

Referring to fig. 5, a locking groove 123 is formed in an outer wall of the transmission wheel 12, a second elastic member 28 is disposed between the locking member 27 and the base 51, and the second elastic member 28 is also a spiral spring. The second elastic element 28 is deformed in a direction parallel to the axis of the code shaft 211, and the blocking element 27 has a tendency to move close to the transmission wheel 12 and to abut against the blocking groove 123 under the action of the second elastic element 28. When the first limiting member 23 is located at the first position, the distance between the locking member 27 and the axis of the cipher shaft 211 is the same as the distance between the first limiting member 23 and the axis of the cipher shaft 27, and the first limiting member 23 is located on the motion track of the locking member 27, so that the locking member 27 is prevented from coming out of the locking groove 123 by the first limiting member 23; when the first limiting member 23 is located at the second position, the locking member 27 is further away from the axis of the combination shaft 211 than the first limiting member 23, and at this time, the first limiting member 23 does not block the locking member 27 from coming out of the locking groove 123.

When the locking member 27 is inserted into the locking groove 123, the locking member 27 has a limiting effect on the transmission wheel 12, and the limiting effect is different according to the shape of the locking groove 123; if the transmission wheel 12 and the sleeve 13 have no freedom of relative movement, in an alternative embodiment, when the locking groove 123 is an annular groove provided around the transmission wheel 12, the locking member 27 only restricts the linear movement of the transmission wheel 12 relative to the cylinder dial 32, does not restrict the rotation of the transmission wheel 12, but the user cannot unlock; in an embodiment, when the locking groove 123 is a bar-shaped groove penetrating through two ends of the transmission wheel 12, the locking member 27 abuts against the locking groove 123, the transmission wheel 12 cannot rotate, but the linear motion of the transmission wheel 12 relative to the key cylinder dial 32 is not limited, and the user cannot unlock the lock; in one possible embodiment, when locking groove 123 is neither an annular groove nor a through groove through drive wheel 12, locking member 27 limits both the rotation of drive wheel 12 and the linear movement of drive wheel 12 relative to cylinder paddle 32, and the user cannot unlock the lock.

The embodiment of the present invention provides an embodiment, locking groove 123 is neither the annular nor the both ends of running through drive wheel 12, therefore locking piece 27 has restricted the rotation and the linear motion of drive wheel 12 simultaneously, because the existence of slider 131 and spout 121, can take place relative slip along the axis between axle sleeve 13 and the drive wheel 12 for locking piece 27 has in fact restricted drive mechanism 1's rotation only, thereby mechanical code mechanism 2 plays limiting displacement to drive mechanism 1.

With the above drawings in mind, to facilitate understanding, embodiments of the present invention provide a more specific implementation scenario. When the intelligent lock breaks down and needs emergency unlocking, a user sequentially rotates six password dial plates 212 to input passwords, if the input password identification 22 is correct, the limiting blocks 231 of the first limiting piece 23 are abutted to the limiting grooves 251 of the locking wheel 25, and the first limiting piece 23 is located at the second position so as not to prevent the locking piece 27 from being separated from the locking groove 123; a user presses the knob 11, the shaft sleeve 13 and the lock head poking sheet 14 are close to the lock cylinder poking wheel 32 under the pushing of the knob 11, the limiting clamping sleeve 35 in the mechanical lock cylinder 33 is inserted into the connecting groove 321 of the lock cylinder poking wheel 32, and at the moment, the limiting clamping sleeve 35 of the electronic lock cylinder exits from the connecting groove 321; the user then rotates the knob 11, the two overload stop pins 161 abut against the two accommodating grooves 111 respectively, so that the knob 11 and the transmission wheel 12 are limited to rotate relatively, the locking piece 27 is separated from the locking groove 123 when the transmission wheel 12 rotates, the mechanical lock cylinder 33 rotates synchronously along with the knob 11, and the mechanical lock cylinder 33 drives the lock cylinder dial wheel 32 to rotate synchronously, so that the unlocking action is completed; after unlocking, the user releases the knob 11, the limiting sleeve 35 in the electronic lock cylinder 34 is inserted into the connecting groove 321 under the resilience of the coil spring 341, the limiting sleeve 35 in the mechanical lock cylinder 33 is pushed out of the connecting groove 321, the lock pick 14, the shaft sleeve 13 and the knob 11 complete the reset action under the action of the reset elastic member 15, and the knob 11 is reversed, so that the locking member 27 is inserted into the locking groove 123 of the transmission wheel 12 under the pushing of the second elastic member 28.

When the password mark 22 input by the user is wrong, the limiting block 231 is not abutted to the limiting groove 251, and the first limiting member 23 is located at the first position. Due to the blocking action of the first limiting member 23, the locking member 27 cannot be disengaged from the locking groove 123, and the user cannot rotate the transmission wheel 12 through the knob 11. If the user increases the twisting force on the knob 11, because the side of the overload stop pin 161 close to the knob 11 is an arc surface, the knob 11 applies a pushing force to the overload stop pin 161 away from the knob 11, the overload spring 162 contracts, the overload stop pin 161 returns to the cylindrical groove 122, and at this time, the knob 11 idles under the force applied by the user, so that the overload protection effect is achieved, and the user cannot complete the unlocking action.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. An emergency unlocking structure is characterized by comprising a transmission mechanism (1) and a locking piece (27), wherein the transmission mechanism (1) is in linkage with a mechanical lock cylinder (33), the locking piece (27) is used for locking the transmission mechanism (1), one side of the locking piece (27) is connected with a mechanical password mechanism (2), the mechanical password mechanism (2) comprises an input assembly (21) for inputting a password from the outside, and an unlocking password is preset in the mechanical password mechanism (2); under the linkage of the mechanical code mechanism (2), the locking piece (27) comprises a locking mode and an unlocking mode, when the code input by the input assembly (21) is different from the unlocking code, the locking piece (27) is in the locking mode, and the locking piece (27) locks the transmission mechanism (1); when the password input by the input assembly (21) is consistent with the unlocking password, the locking piece (27) is in the unlocking mode, and the locking piece (27) releases the locking effect on the transmission mechanism (1).

2. The emergency unlocking structure according to claim 1, wherein the mechanical combination mechanism (2) further comprises a first limiting member (23) for limiting the locking member (27), the input component (21) comprises a combination shaft (211) and at least one combination dial (212) sleeved outside the combination shaft (211), a combination identifier (22) is arranged on the combination dial (212), the first limiting member (23) is arranged in cooperation with the input component (21), and under linkage of the input component (21), the position state of the first limiting member (23) comprises a first position and a second position; when the first limiting member (23) is located at the first position, the first limiting member (23) limits the locking member (27) to be in the locking mode, and when the first limiting member (23) is located at the second position, the first limiting member (23) releases the limit on the locking member (27).

3. The emergency unlocking structure according to claim 2, wherein said mechanical combination mechanism (2) further comprises a first elastic member (26), said first elastic member (26) being configured to drive said first retaining member (23) from said second position to said first position.

4. The emergency unlocking structure according to claim 2, wherein the transmission mechanism (1) comprises a transmission wheel (12) and a lock head shifting piece (14), a first end of the lock head shifting piece (14) is connected to the transmission wheel (12), a second end of the lock head shifting piece (14) is used for connecting a mechanical lock cylinder (33), and a locking groove (123) is formed in the transmission wheel (12); when the locking piece (27) is in the locking mode, the locking piece (27) is inserted into the locking groove (123) to limit the movement of the transmission wheel (12), and when the locking piece (27) is in the unlocking mode, the locking piece (27) is separated from the locking groove (123) to release the limitation of the transmission wheel (12).

5. The emergency unlocking structure according to claim 4, wherein a second elastic member (28) is provided on a side of the lock member (27) away from the lock groove (123), and the second elastic member (28) is used for driving the lock member (27) to abut against the lock groove (123).

6. The emergency unlocking structure according to claim 4, wherein each combination dial (212) is connected with a locking wheel (25), the locking wheel (25) is sleeved outside the combination shaft (211), the outer wall of the locking wheel (25) is provided with a limiting groove (251), the limiting groove (251) is arranged corresponding to one of the combination marks (22) on the combination dial (212), and a limiting block (231) for abutting against the limiting groove (251) is arranged on the locking piece (27); when the password input by the input component (21) is different from the unlocking password, the limit block (231) abuts against the limit groove (251), and the first limit part (23) is located at the first position; when the password input by the input assembly (21) corresponds to the unlocking password, the limiting block (231) is separated from the limiting groove (251), and the first limiting piece (23) is located at the second position.

7. The emergency unlocking structure according to claim 4, wherein a shaft sleeve (13) is sleeved on an outer side of the first end of the lock head plectrum (14) in a clamping manner, the transmission wheel (12) is sleeved on the outer side of the shaft sleeve (13), the distance between the transmission wheel (12) and the lock cylinder plectrum (32) is fixed, the transmission mechanism (1) further comprises a reset elastic piece (15) arranged between the transmission wheel (12) and the shaft sleeve (13), and the reset elastic piece (15) is used for driving the lock head plectrum (14) to move away from the lock cylinder plectrum (32) so as to complete the reset action of the transmission mechanism (1).

8. The emergency unlocking structure according to claim 7, wherein the transmission mechanism (1) further includes a knob (11) for a user to operate and complete the unlocking action, a second limiting member (16) is disposed between the knob (11) and the first end of the lock pick (14), the second limiting member (16) includes an overload stop pin (161) and an overload spring (162), the overload spring (162) is circumferentially limited with respect to the bushing (13), an accommodating groove (111) for accommodating the overload stop pin (161) is disposed on one side of the knob (11) close to the bushing (13), the overload spring (162) is configured to push the overload stop pin (161) to abut against the accommodating groove (111), and one side of the overload stop pin (161) close to the accommodating groove (111) is configured as an arc surface.

9. The emergency unlocking structure according to claim 7, wherein the lock pick (14) is connected to the shaft sleeve (13) through a third limiting member (17), the third limiting member (17) is configured to limit the shaft sleeve (13) and the lock pick (14) from axial relative displacement, a plurality of first engaging grooves (141) are formed in the lock pick (14), the first engaging grooves (141) are spaced apart along the length direction of the lock pick (14), the shaft sleeve (13) is provided with a second engaging groove (132), a first section of the third limiting member (17) is engaged with the first engaging groove (141), and a second section of the third limiting member (17) is engaged with the second engaging groove (132).

10. The emergency unlocking structure according to claim 9, wherein the transmission mechanism (1) further includes a connecting pin (18) having two ends connected to the mechanical lock cylinder (33), the lock pick (14) is provided with a connecting hole (142) penetrating through the lock pick (14), the connecting pin (18) is inserted into the connecting hole (142), and the dimension of the connecting hole (142) along the length direction of the lock pick (14) is greater than the diameter of the connecting pin (18).

Images