CN211008070U - Unlocking mechanism - Google Patents
Unlocking mechanism Download PDFInfo
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- CN211008070U CN211008070U CN201921642445.4U CN201921642445U CN211008070U CN 211008070 U CN211008070 U CN 211008070U CN 201921642445 U CN201921642445 U CN 201921642445U CN 211008070 U CN211008070 U CN 211008070U
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Abstract
The utility model relates to an unlocking mechanism lock field discloses an unlocking mechanism, which comprises a spiral-linear shaft sleeve, a guide shaft, a stirring component and a driving motor fixed on a base, wherein one end of the spiral-linear shaft sleeve is coaxially sleeved or embedded on an output shaft of the driving motor, the other end of the spiral-linear shaft sleeve is coaxially sleeved or embedded on the guide shaft, and the guide shaft is coaxially fixed with a stopper to be locked; the guide shaft, the stopper to be locked, the output shaft of the driving motor and the spiral-linear shaft sleeve are coaxially arranged; the driving motor is used for driving the spiral-linear shaft sleeve to do reciprocating linear or spiral motion along the axis of the spiral-linear shaft sleeve and simultaneously driving the poking assembly to separate a clamping block in the locking mechanism from the stopper to be locked. The unlocking mechanism can effectively prevent the locked locking mechanism from automatically unlocking in bumpy operation.
Description
Technical Field
The utility model relates to a stopper sliding door lock field, in particular to release mechanism.
Background
At present, bus door, subway door or high-speed railway door use the stopper sliding door usually, and stopper sliding door closure is good, and occupation space is few for whole motorcycle type elegant appearance, the security and the closure of stopper sliding door are directly influenced to the goodness of the lock of stopper sliding door, and in order to improve the security of stopper sliding door, the researcher in the field mainly puts the object of research in the structure of stopper sliding door lock.
The currently used sliding plug door lock structure is that when the vehicle door is closed, a guide wheel on the door lock is guided into a guide rail on the vehicle frame, the movement of the door lock is limited through the guide rail, and the door lock is fixed on the vehicle door, so that the movement of the vehicle door is limited, and the purpose of locking the door is achieved. However, the door lock structure has great potential safety hazard, because the vehicle is in a driving process and the road surface is hollow, the guide wheel on the door lock can roll back and forth in the guide rail, so that the door is poor in sealing performance, and airflow can enter the vehicle from the door gap during high-speed running to influence the riding experience of passengers; when the vibration is large, the phenomenon that the guide wheel returns from the original path in the guide rail and slides out can even occur, so that the vehicle door can be automatically opened, and great potential safety hazard exists.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: to the problem that exists among the prior art, the utility model provides an unlocking mechanism can effectively avoid the locking mechanism after the locking to automatic unblock in jolting the operation.
The technical scheme is as follows: the utility model provides an unlocking mechanism, which comprises a spiral-linear shaft sleeve, a guide shaft, a stirring component and a driving motor fixed on a base, wherein one end of the spiral-linear shaft sleeve is coaxially sleeved or embedded on an output shaft of the driving motor, the other end of the spiral-linear shaft sleeve is coaxially sleeved or embedded on the guide shaft, and the guide shaft is coaxially fixed with a stopper to be locked; the guide shaft, the stopper to be locked, the output shaft of the driving motor and the spiral-linear shaft sleeve are coaxially arranged; the driving motor is used for driving the spiral-linear shaft sleeve to do reciprocating linear or spiral motion along the axis of the spiral-linear shaft sleeve and simultaneously driving the poking assembly to separate a clamping block in the locking mechanism from the stopper to be locked.
Furthermore, the spiral-linear shaft sleeve is of a hollow cylindrical structure, the inner wall of one end of the spiral-linear shaft sleeve is provided with spiral teeth A32, and the inner wall of the other end of the spiral-linear shaft sleeve is provided with a plurality of ribs A33 which are distributed circumferentially and are parallel to the central axis of the spiral-linear shaft sleeve; a spiral key A34 or a spline A35 matched with the spiral tooth A32 or the rib A33 is arranged on the outer wall of the output shaft of the driving motor, and a spline B36 or a spiral key B37 matched with the rib A33 or the spiral tooth A32 is arranged on the outer wall of the guide shaft; one end of the spiral-linear shaft sleeve, which is provided with the spiral teeth A32, is sleeved on the spiral key A34 or the spiral key B37, and one end of the rib A33 is sleeved on the spline A35 or the spline B36. When the spiral-linear shaft sleeve is used as a hollow sleeve, the two ends of the spiral-linear shaft sleeve are required to ensure that one end of the spiral-linear shaft sleeve is provided with spiral teeth and the other end of the spiral-linear shaft sleeve is provided with ribs parallel to the central axis of the spiral-linear shaft sleeve, so that when the driving motor drives the spiral-linear shaft sleeve to move through a spiral key or a spline on an output shaft of the driving motor, the spiral-linear shaft sleeve can only be driven to do short-distance spiral linear motion before a guide shaft does not rotate along with a stopper to be locked, and the spiral-linear shaft sleeve drives a shifting rod to move back and forth, thereby realizing the purpose.
Further, the spiral-linear shaft sleeve is of a solid shaft structure, the outer wall of one end of the spiral-linear shaft sleeve is provided with a spiral key A34, and the outer wall of the other end of the spiral-linear shaft sleeve is provided with a plurality of splines A35 which are distributed circumferentially and are parallel to the central axis of the spiral-linear shaft sleeve; the inner wall of the output shaft of the driving motor is provided with spiral teeth A32 or ribs A33 matched with the spiral key A34 or the spline A35, and the inner wall of the guide shaft is provided with ribs B38 or spiral teeth B39 matched with the spline A35 or the spiral key A34; the end of the spiral-straight shaft sleeve with the spiral key A34 is nested in the spiral tooth A32 or the spiral tooth B39, and the end with the spline A35 is nested in the rib A33 or the rib B38. When the spiral-linear shaft sleeve is used as a shaft, two ends of the spiral-linear shaft sleeve are required to ensure that one end of the spiral-linear shaft sleeve is a spiral key and the other end of the spiral-linear shaft sleeve is a spline parallel to the central axis of the spiral-linear shaft sleeve, so that when the driving motor drives the spiral-linear shaft sleeve to move through spiral teeth or ribs on an output shaft of the driving motor, the spiral-linear shaft sleeve can only be driven to do short-distance spiral linear motion before a guide shaft does not rotate along with a stopper to be locked, the spiral-linear shaft sleeve drives a poking rod to move back and forth, and the purpose of separating and unlocking a clamping.
Furthermore, one end of the spiral-linear shaft sleeve is of a hollow cylindrical structure, the other end of the spiral-linear shaft sleeve is of a solid shaft structure, the inner wall of one end with the hollow cylindrical structure is provided with spiral teeth A32 or a plurality of ribs A33 which are distributed circumferentially and are parallel to the central axis of the hollow cylindrical structure, and one end with the solid shaft structure is provided with a spline A35 or a spiral key A34; the outer wall of the output shaft of the driving motor is provided with a spiral key B37 or a spline B36 matched with the spiral tooth A32 or the rib A33, and the inner wall of the guide shaft is provided with a rib B38 or a spiral tooth B39 matched with the spline A35 or the spiral key A34; one end of the spiral-linear shaft sleeve with a hollow structure is sleeved on the output shaft for driving the motor, and the other end with a solid shaft structure is nested in the guide shaft; or the inner wall of the output shaft of the driving motor is provided with ribs C40 or spiral teeth C42 matched with the spline A35 or the spiral key A34; the outer wall of the guide shaft is provided with a spiral key C41 or a spline C43 which is matched with the spiral teeth A32 or the ribs A33; one end of the spiral-linear shaft sleeve with a hollow structure is nested in the output shaft for driving the motor, and one end with a solid shaft structure is nested on the guide shaft. When one end of the spiral-linear shaft sleeve is used as a shaft and the other end of the spiral-linear shaft sleeve is used as a sleeve, the two ends of the spiral-linear shaft sleeve are required to ensure that one end of the spiral-linear shaft sleeve is provided with a spiral tooth or a spiral key structure, and the other end of the spiral-linear shaft sleeve is provided with a linear spline or a rib structure, so that when the driving motor drives the spiral-linear shaft sleeve to move through the spiral tooth or the rib on the output shaft of the driving motor, the spiral-linear shaft sleeve can only be driven to do short-distance spiral linear motion before the guide shaft does not rotate along with the stopper to be locked, and the spiral-linear shaft sleeve drives the poking rod.
Further, a first buffer member is sleeved between the spiral-linear shaft sleeve and the output shaft of the driving motor, and/or a second buffer member is sleeved between the spiral-linear shaft sleeve and the guide shaft. The first buffer piece and/or the second buffer piece are arranged to limit and fix the position of the spiral-linear shaft sleeve, so that the spiral-linear shaft sleeve is prevented from moving left and right between the output shaft and the guide shaft of the driving motor to influence the unlocking effect.
Preferably, the first and/or second dampener is a spring.
Furthermore, the shifting assembly comprises a shifting rod and a third elastic piece, the middle part of the shifting rod is rotatably connected with the base, the front end of the shifting rod is a free end, and the tail end of the shifting rod is rotatably connected with the spiral-linear shaft sleeve; the two ends of the third elastic piece are respectively fixedly connected with the front end of the shifting lever and the base, and the connecting point of the middle part of the shifting lever and the base in rotating connection is located outside the straight line where the third elastic piece is located. When the locked locking mechanism is required to be unlocked, the driving motor reversely rotates to drive the spiral-linear shaft sleeve to move towards the direction close to the locking mechanism, the spiral-linear shaft sleeve can drive the tail end of the shifting rod to rotate, so that the middle part of the shifting rod rotates around the base, the front end of the shifting rod which is not in contact with the clamping block in the locking mechanism gradually rotates towards the direction close to the clamping block, and meanwhile, the third elastic piece is also close to the rotating connection point of the middle part close to the shifting rod and the base; along with the movement of the spiral-linear shaft sleeve, the front end of the shifting rod is in contact with the clamping block and separates and unlocks the clamping block and the stopper to be locked; then the driving motor rotates positively to drive the spiral-linear shaft sleeve to move linearly in the positive direction, so that the shift lever is separated from the clamping block of the locking mechanism, the driving is stopped after the spiral-linear shaft sleeve moves positively to the initial position, the spiral-linear shaft sleeve also stops rotating, and the next unlocking action is waited.
Preferably, the third elastic member is a tension spring.
Preferably, the stopper to be locked is a ratchet wheel, and the clamping block in the locking mechanism is provided with a pawl matched with the ratchet wheel; when the pawl is meshed with the ratchet wheel, the clamping block is clamped with the stopper to be locked, and when the pawl is separated from the ratchet wheel, the clamping block is separated from the stopper to be locked.
Has the advantages that: in the utility model, when the locking block in the locking mechanism is locked with the stopper to be locked and needs to be unlocked (namely, when the closed door plate needs to be opened), the driving motor drives the spiral-linear shaft sleeve to rotate through the output shaft of the driving motor, and because one end of the two ends of the spiral-linear shaft sleeve is of a spiral structure and the other end of the spiral-linear shaft sleeve is of a linear structure, when the stopper to be locked is locked by the locking block in the locking mechanism, the guide shaft coaxially fixed with the stopper to be locked can not rotate, so that the spiral-linear shaft sleeve with one end connected with the guide shaft can not rotate, and can only be forced to do short-range spiral linear movement along the linear structure; when the screw-linear shaft sleeve is separated from the stopper to be locked by the toggle assembly on which the driving screw of the driving motor linearly moves, the stopper to be locked is unlocked; then when the driving motor drives the spiral-linear shaft sleeve to rotate again, the stopper to be locked can freely rotate at the moment, so that the guide shaft can freely rotate, namely the spiral-linear shaft sleeve can freely rotate along with the guide shaft; meanwhile, one end of the spiral-linear shaft sleeve is a spiral structure, and the other end of the spiral-linear shaft sleeve is a linear structure, so that the spiral-linear shaft sleeve can perform linear motion at a certain interval during rotation, the spiral motion is realized by combining the spiral shaft sleeve and the linear shaft sleeve, and the spiral-linear shaft sleeve only performs simple in-situ rotation motion after the stroke of the linear motion is finished.
The purpose of designing the unlocking mechanism is that the to-be-locked stopper can only rotate clockwise and cannot rotate reversely after being clamped by the clamping block, so that when the clamping block is clamped on the to-be-locked stopper, the to-be-locked stopper cannot rotate reversely due to vibration and the like, and when the to-be-locked stopper rotates clockwise due to vibration and bumping and the like, the to-be-locked stopper is clamped by the clamping block in the locking mechanism, so that the clamping block and the to-be-locked stopper are always in a clamping state; in practical application, the unlocking mechanism and the locking mechanism matched with the unlocking mechanism are generally fixed on a bus door, a subway door or a high-speed railway door and the like, and the unlocking mechanism is relatively static with the door, so that the unlocking mechanism can effectively prevent a stopper (namely a car door) to be locked, which is locked, from being automatically unlocked due to vibration in the driving process, and has the advantages of simple structure and reasonable mechanism design.
Drawings
Fig. 1 is an overall structural schematic diagram of an unlocking mechanism;
FIG. 2 is a schematic view of a locking state of the locking mechanism and the stopper to be locked;
FIG. 3 is a schematic diagram illustrating a state in which a stopper to be locked is separated from a locking block of a locking mechanism and unlocked;
FIG. 4 is a schematic perspective view of a spiral-linear bushing;
FIG. 5 is a front view of FIG. 4;
FIG. 6 is a cross-sectional view taken along plane A-A of FIG. 5;
FIG. 7 is a schematic perspective view of a spiral-linear bushing;
FIG. 8 is a front view of FIG. 7;
FIG. 9 is a cross-sectional view taken along plane A-A of FIG. 8;
FIG. 10 is a front view of a spiral-linear bushing;
FIG. 11 is a cross-sectional view taken along plane A-A of FIG. 10;
FIG. 12 is a front view of a spiral-linear bushing;
FIG. 13 is a cross-sectional view taken along plane A-A of FIG. 12;
FIG. 14 is a front view of a spiral-linear bushing;
FIG. 15 is a cross-sectional view taken along plane A-A of FIG. 14;
FIG. 16 is a front view of a spiral-linear bushing;
FIG. 17 is a cross-sectional view taken along plane A-A of FIG. 16;
FIG. 18 is a front view of a spiral-linear bushing;
FIG. 19 is a cross-sectional view taken along plane A-A of FIG. 18;
FIG. 20 is a front view of a spiral-linear bushing;
fig. 21 is a cross-sectional view taken along plane a-a of fig. 20.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
Embodiment 1:
the present embodiment provides a dual unlocking mechanism, as shown in fig. 1, which mainly comprises a spiral-linear shaft sleeve 30, a guide shaft 31, a toggle assembly and a driving motor 3 fixed on a base 11, wherein one end of the spiral-linear shaft sleeve 30 is coaxially sleeved or embedded on an output shaft 61 of the driving motor 3, the other end is coaxially sleeved or embedded on the guide shaft 31, and the guide shaft 31 is coaxially fixed with a stopper 12 to be locked; the guide shaft 31, the stopper 12 to be locked, the output shaft 61 of the driving motor 3, and the spiral-linear shaft sleeve 30 are coaxially arranged; the driving motor 3 is used for driving the spiral-linear shaft sleeve 30 to do reciprocating linear or spiral motion along the axis thereof and simultaneously driving the toggle assembly to separate the clamping block 27 in the locking mechanism from the stopper 12 to be locked.
The shifting assembly consists of a shifting rod 44 and a third elastic piece 45, the middle part of the shifting rod 44 is rotationally connected with the base 11, the front end is a free end, and the tail end is rotationally connected with the spiral-linear shaft sleeve 30; the third elastic element 45 is preferably a tension spring, two ends of the third elastic element 45 are fixedly connected with the front end of the shift lever 44 and the base 11, respectively, and a connection point of the middle part of the shift lever 44 and the base 11 is located outside a straight line where the third elastic element 45 is located.
The above-mentioned stopper 12 to be locked is preferably a ratchet wheel which can rotate only in one direction, the locking block 27 in the locking mechanism has a pawl, and when the locking block 27 is locked to the stopper 12 to be locked (see fig. 2), the pawl is engaged with the ratchet wheel, and when the locking block 27 is unlocked from the stopper 12 to be locked, the pawl is disengaged from the ratchet wheel (see fig. 3).
As shown in fig. 4 to 6, the inner wall of one end of the spiral-linear shaft sleeve 30 has spiral teeth a 32, and the inner wall of the other end has a plurality of ribs a33 distributed circumferentially and parallel to the central axis thereof; the output shaft 61 of the driving motor 3 is a solid shaft, the outer wall of the solid shaft is provided with a spiral key A34 matched with the spiral teeth A32, the guide shaft 31 is a solid guide shaft, the outer wall of the solid shaft is provided with a spline A35 matched with the ribs A33, one end of the spiral-linear shaft sleeve 30, which is provided with the spiral teeth A32, is sleeved on the spiral key A34 of the output shaft 61 of the driving motor 3, and one end, which is provided with the ribs A33, is sleeved on the spline A35 of the guide shaft 31. Or, the output shaft 61 of the driving motor 3 is a solid shaft, the outer wall is provided with a spline B36 matched with the rib a33, the guide shaft 31 is a solid guide shaft, the outer wall is provided with a spiral key B37 matched with the spiral tooth a 32, one end of the spiral-linear shaft sleeve 30 provided with the spiral tooth a 32 is sleeved on the spiral key B37 of the guide shaft 31, and one end provided with the rib a33 is sleeved on the spline B36 of the output shaft 61 of the driving motor 3, as shown in fig. 7 to 9.
Referring to fig. 10 and 11, the spiral-linear shaft sleeve 30 may also be a solid shaft structure, one end of which has a spiral key a34 on its outer wall and the other end of which has a plurality of splines a 35 distributed circumferentially and parallel to its central axis; an output shaft 61 of the driving motor 3 is a hollow shaft, the inner wall of the hollow shaft is provided with spiral teeth A32 matched with the spiral key A34, the guide shaft 31 is a hollow guide shaft, and the inner wall of the hollow shaft is provided with ribs B38 matched with the spline A35; the screw-linear shaft sleeve 30 has one end with a screw key A34 nested in a screw tooth A32 in an output shaft 61 of the drive motor 3 and one end with a spline A35 nested in a rib B38 in the guide shaft 31. Or, the output shaft 61 of the driving motor 3 is a hollow shaft, the inner wall is provided with a rib A33 matched with the spline A35, the guide shaft 31 is a hollow guide shaft, and the inner wall is provided with a spiral tooth B39 matched with the spiral key A34; the screw-linear bushing 30 has one end having a screw key a34 nested in the screw teeth B39 of the guide shaft 31 and one end having a spline a 35 nested in the ribs a33 of the output shaft 61 of the drive motor 3, as shown in fig. 12 and 13.
As shown in fig. 14 and 15, the spiral-linear shaft sleeve 30 may also be a shaft sleeve with one end having a hollow cylindrical structure and the other end having a solid shaft structure, when the inner wall of the end having the hollow cylindrical structure has spiral teeth a 32 and the end having the solid shaft structure has splines a 35, the output shaft 61 of the driving motor 3 is a solid shaft, the outer wall is provided with spiral keys B37 matched with the spiral teeth a 32, the guide shaft 31 is a hollow guide shaft, and the inner wall has a plurality of ribs B38 distributed circumferentially matched with the splines a 35 and parallel to the central axis thereof; one end of the spiral-linear shaft sleeve 30 with a hollow structure is sleeved on the spiral key B37 of the output shaft 61 of the driving motor 3, and one end with a solid shaft structure is nested in the rib B38 of the guide shaft 31. Or, the output shaft 61 of the driving motor 3 is a hollow shaft, the inner wall is provided with a plurality of ribs C40 which are distributed circumferentially and are parallel to the central axis of the spline a 35, the guide shaft 31 is a solid guide shaft, and the outer wall is provided with a spiral key C41 which is matched with the spiral tooth a 32; one end of the screw-linear shaft sleeve 30 having a hollow structure is fitted over the screw key C41 of the guide shaft 31, and the other end having a solid shaft structure is fitted into the rib C40 of the output shaft 61 of the drive motor 3, as shown in fig. 16 and 17.
As shown in fig. 18 and 19, when the inner wall of one end of the spiral-linear shaft sleeve 30 having a hollow cylindrical structure has a plurality of ribs a33 distributed circumferentially and parallel to the central axis thereof, and one end having a solid shaft structure has a spiral key a34, the output shaft 61 of the driving motor 3 is a solid shaft, the outer wall is provided with a spline B36 engaged with the ribs a33, the guide shaft 31 is a hollow guide shaft, and the inner wall has a spiral tooth B39 engaged with the spiral key a 34; one end of the spiral-linear shaft sleeve 30 with a hollow structure is sleeved on the spline B36 of the output shaft 61 of the driving motor 3, and one end with a solid shaft structure is nested in the spiral teeth B39 of the guide shaft 31. Or the output shaft 61 of the driving motor 3 is a hollow shaft, the inner wall of the hollow shaft is provided with a helical tooth C42 matched with the helical key A34, the guide shaft 31 is a solid guide shaft, and the outer wall of the hollow shaft is provided with a spline C43 matched with the rib A33; one end of the screw-linear shaft sleeve 30 having a hollow structure is fitted over the spline C43 of the guide shaft 31, and the other end having a solid shaft structure is fitted into the helical teeth C42 of the output shaft 61 of the drive motor 3, as shown in fig. 20 and 21.
The unlocking principle of the unlocking mechanism is as follows:
when the locking block in the locking mechanism is locked with the stopper to be locked and needs to be unlocked (as shown in fig. 2), the driving motor 3 rotates in the opposite direction through the output shaft 61 of the driving motor to drive the spiral-linear shaft sleeve 30 to rotate in the opposite direction around the axis, because the spiral-linear shaft sleeve 30 has no structure, one end of the spiral-linear shaft sleeve 30 is provided with a spiral tooth or a spiral key, and the other end is provided with a rib or a spline, so that when the driving motor 3 drives the spiral-linear shaft sleeve 30 to rotate in the opposite direction through the spiral key, the spline, the spiral tooth or the rib on the output shaft 61 of the driving motor 3 or the rib or the spline on the guide shaft 31 to move in a spiral straight line (left movement in the figure) before the guide shaft 31 rotates along with the stopper to be locked 12, the spiral-linear shaft sleeve 30 can only be forced to move in a spiral straight line (left movement in the figure), and the forward movement of the spiral-linear, the middle portion of the shift lever 44 is rotatably connected to the base 11, the front end of the shift lever 44 is forced to rotate from a direction away from the clamping block 27, when the front end of the shift lever 44 is rotated to contact the upper part of the upper pawl of the locking block 27, the further advance of the screw-linear shaft sleeve 30 forces the shift lever 44 to shift the locking block 27 to rotate in the opposite direction, which drives the third elastic member 45 to rotate from the side close to the side far from the stopper 12 to be locked, after the third elastic element 45 passes over the rotational connection point of the shift lever 44 and the base 11, the third elastic element 45 can pull the shift lever 44, as shown in fig. 3, the locking block 27 is effectively separated from the to-be-locked stopper 12 for unlocking (in practical applications, an elastic member is disposed on the locking block 27 to pull the locking block 27 to prevent the locking block from being locked again after the lever 44 is separated from the locking block 27).
After one unlocking, the driving motor 3 drives the spiral-linear shaft sleeve 30 to move in a straight line and rightwards, the spiral-linear shaft sleeve 30 moves rightwards to drive the shift lever 44 which is rotatably connected with the spiral-linear shaft sleeve to rotate around a connecting point of the shift lever 44 and the base 11, the front end of the shift lever 44 rotates in a direction far away from the clamping block 27, when the shift lever 44 rotates to the position that the third elastic piece 45 crosses the rotating connecting point of the shift lever 44 and the base 11, the shift lever 44 is completely separated from the clamping block 27, the driving motor stops driving after the spiral-linear shaft sleeve moves rightwards to the initial position, and the spiral-linear shaft sleeve stops rotating to wait for the next unlocking action.
In practical applications, it is preferable that the first buffer 46 is sleeved between the spiral-linear shaft sleeve 30 and the output shaft 61 of the driving motor 3, and the second buffer 47 is sleeved between the guide shaft 31; the first and second dampers 46 and 47 preferably use springs. The first buffer 46 and the second buffer 47 are disposed to limit and fix the position of the spiral-linear shaft sleeve 30 between the driving motor 3 and the guide shaft 31, so as to prevent the spiral-linear shaft sleeve 30 from moving left and right between the output shaft 61 of the driving motor 3 and the guide shaft 31, thereby affecting the unlocking effect, and in addition, the spiral-linear shaft sleeve 30 can also be buffered, so as to prevent the two ends of the spiral-linear shaft sleeve 30 from colliding with the output shaft 61 of the driving motor 3 and the guide shaft 31 to be damaged.
The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.
Claims (9)
1. An unlocking mechanism is characterized by comprising a spiral-linear shaft sleeve, a guide shaft, a shifting assembly and a driving motor fixed on a base, wherein one end of the spiral-linear shaft sleeve is coaxially sleeved or embedded on an output shaft of the driving motor, the other end of the spiral-linear shaft sleeve is coaxially sleeved or embedded on the guide shaft, and the guide shaft is coaxially fixed with a stopper to be locked; the guide shaft, the stopper to be locked, the output shaft of the driving motor and the spiral-linear shaft sleeve are coaxially arranged; the driving motor is used for driving the spiral-linear shaft sleeve to do reciprocating linear or spiral motion along the axis of the spiral-linear shaft sleeve and simultaneously driving the poking assembly to separate a clamping block in the locking mechanism from the stopper to be locked.
2. The unlocking mechanism according to claim 1, wherein the screw-linear shaft sleeve is a hollow cylinder structure, the inner wall of one end of the screw-linear shaft sleeve is provided with screw teeth A32, and the inner wall of the other end of the screw-linear shaft sleeve is provided with a plurality of ribs A33 which are distributed circumferentially and are parallel to the central axis of the screw-linear shaft sleeve; a spiral key A34 or a spline A35 matched with the spiral tooth A32 or the rib A33 is arranged on the outer wall of the output shaft of the driving motor, and a spline B36 or a spiral key B37 matched with the rib A33 or the spiral tooth A32 is arranged on the outer wall of the guide shaft; one end of the spiral-linear shaft sleeve, which is provided with the spiral teeth A32, is sleeved on the spiral key A34 or the spiral key B37, and one end of the rib A33 is sleeved on the spline A35 or the spline B36.
3. The unlocking mechanism according to claim 1, wherein the spiral-linear shaft sleeve is a solid shaft structure, the outer wall of one end of the spiral-linear shaft sleeve is provided with a spiral key A34, and the outer wall of the other end of the spiral-linear shaft sleeve is provided with a plurality of splines A35 which are distributed circumferentially and are parallel to the central axis of the spiral-linear shaft sleeve; the inner wall of the output shaft of the driving motor is provided with spiral teeth A32 or ribs A33 matched with the spiral key A34 or the spline A35, and the inner wall of the guide shaft is provided with ribs B38 or spiral teeth B39 matched with the spline A35 or the spiral key A34; the end of the spiral-straight shaft sleeve with the spiral key A34 is nested in the spiral tooth A32 or the spiral tooth B39, and the end with the spline A35 is nested in the rib A33 or the rib B38.
4. The unlocking mechanism according to claim 1, wherein one end of the spiral-linear shaft sleeve is of a hollow cylindrical structure, the other end of the spiral-linear shaft sleeve is of a solid shaft structure, the inner wall of one end with the hollow cylindrical structure is provided with spiral teeth A32 or a plurality of ribs A33 which are distributed circumferentially and are parallel to the central axis of the hollow cylindrical structure, and one end with the solid shaft structure is provided with a spline A35 or a spiral key A34;
the outer wall of the output shaft of the driving motor is provided with a spiral key B37 or a spline B36 matched with the spiral tooth A32 or the rib A33, and the inner wall of the guide shaft is provided with a rib B38 or a spiral tooth B39 matched with the spline A35 or the spiral key A34; one end of the spiral-linear shaft sleeve with a hollow structure is sleeved on an output shaft of the driving motor, and one end with a solid shaft structure is nested in the guide shaft;
or the inner wall of the output shaft of the driving motor is provided with ribs C40 or spiral teeth C42 matched with the spline A35 or the spiral key A34; the outer wall of the guide shaft is provided with a spiral key C41 or a spline C43 matched with the spiral teeth A32 or the ribs A33; one end of the spiral-linear shaft sleeve with a hollow structure is nested in an output shaft of the driving motor, and one end with a solid shaft structure is nested on the guide shaft.
5. The lock release mechanism according to any one of claims 1 to 4, wherein a first damper is interposed between the screw-linear bushing and the output shaft of the drive motor, and/or a second damper is interposed between the screw-linear bushing and the guide shaft.
6. The delatch mechanism of claim 5 wherein the first and/or second dampener is a spring.
7. The unlocking mechanism according to any one of claims 1 to 4, wherein the toggle assembly comprises a toggle rod and a third elastic member, the middle part of the toggle rod is rotatably connected with the base, the front end of the toggle rod is a free end, and the tail end of the toggle rod is rotatably connected with the spiral-linear shaft sleeve; the two ends of the third elastic piece are respectively fixedly connected with the front end of the shifting lever and the base, and the connecting point of the middle part of the shifting lever and the base in rotating connection is located outside the straight line where the third elastic piece is located.
8. The delatch mechanism of claim 7 wherein the third resilient member is a tension spring.
9. The unlock mechanism of any one of claims 1 to 4, wherein the stopper to be locked is a ratchet wheel, and the chuck block has a pawl cooperating with the ratchet wheel; when the pawl is meshed with the ratchet wheel, the clamping block is clamped with the stopper to be locked, and when the pawl is separated from the ratchet wheel, the clamping block is separated from the stopper to be locked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921642445.4U CN211008070U (en) | 2019-09-29 | 2019-09-29 | Unlocking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921642445.4U CN211008070U (en) | 2019-09-29 | 2019-09-29 | Unlocking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211008070U true CN211008070U (en) | 2020-07-14 |
Family
ID=71481697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921642445.4U Active CN211008070U (en) | 2019-09-29 | 2019-09-29 | Unlocking mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110528976A (en) * | 2019-09-29 | 2019-12-03 | 金湖县微晶控制系统有限公司 | Unlocking mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110528976A (en) * | 2019-09-29 | 2019-12-03 | 金湖县微晶控制系统有限公司 | Unlocking mechanism |
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