CN213774891U - Driving mechanism, locking device and lock cylinder - Google Patents

Abstract

The application relates to an electronic lock technical field particularly, relates to a actuating mechanism, locking means and lock core, locking means install in the lock core, the actuating mechanism who sets up among the locking means includes: a motor; the rotating shaft is connected with the output end of the motor, and a sliding part is formed on the rotating shaft; the telescopic piece is sleeved on the rotating shaft and provided with an inclined rail, and the inclined rail is matched with the sliding piece to drive the telescopic piece to move along the axial direction; the two ends of the oblique track respectively extend towards opposite directions along the circumferential direction to form a first buffer track and a second buffer track. The application provides a drive mechanism stretches out power through the extensible member, and its epaxial slider that rotates can get into first buffering track or second buffering track when removing to the orbital end of slant to reserve certain rotation allowance for the motor, allow the motor to continue to rotate and stop after a while, can solve the motor because unable accurate stall and stifled problem of burning machine of changeing.

Description

Driving mechanism, locking device and lock cylinder

Technical Field

The application relates to the technical field of electronic locks, in particular to a driving mechanism, a locking device and a lock cylinder.

Background

The electronic lock is generally driven by a motor at present, and when the electronic lock is unlocked or locked in place, the motor cannot be accurately stopped sometimes, the electronic lock may continue to rotate for a while and then stop, and the situation that the motor is blocked and the machine is burnt is easy to occur.

SUMMERY OF THE UTILITY MODEL

The application aims at providing a driving mechanism, a locking device and a lock cylinder to solve the problem that a motor in the prior art is easy to block and burn.

The embodiment of the application is realized as follows:

in a first aspect, an embodiment of the present application provides a driving mechanism, which includes:

a motor;

the rotating shaft is connected to the output end of the motor, and a sliding part is formed on the rotating shaft;

the telescopic piece is sleeved on the rotating shaft and provided with an inclined rail, and the inclined rail is matched with the sliding piece to drive the telescopic piece to move along the axial direction; and two ends of the oblique track respectively extend in opposite directions along the circumferential direction to form a first buffer track and a second buffer track.

The driving mechanism provided by the application outputs power through the telescopic piece, and when the motor drives the rotating shaft to rotate, the sliding piece on the rotating shaft moves along the inclined rail, so that the force is applied through the inner wall of the inclined rail to drive the telescopic piece to axially extend or retract; when the telescopic piece is limited due to extension in place, the first buffer rail reserves a certain movement allowance for the sliding piece so as to allow the rotating shaft to continue to rotate for a while along with the motor and then stop; when the telescopic piece is limited due to being folded in place, the second buffer rail reserves a certain movement allowance for the sliding piece so as to allow the rotating shaft to continue to rotate for a while along with the motor and then stop.

At present electronic lock field, for preventing motor stall burning machine, can only use the motor that the rotational accuracy is high generally, and the actuating mechanism that this application provided need not to use the motor that the rotational accuracy is high, and the motor accomplishes the drive task and rotates the back that targets in place, still has certain movable allowance, can solve the motor because unable accurate stall and the problem of stall burning machine.

In an embodiment of the present application, optionally, the sliding member is made of an elastic material.

In above-mentioned technical scheme, because the slider is elasticity, if the slider has walked first buffering track or second buffering track after, the motor still does not stop, the slider can break away from first buffering track or second buffering track by the pressurized to skid in the extensible member, thereby the problem of stifled commentaries on classics burning machine is solved to one step.

In an embodiment of the present application, optionally, two sliding parts are symmetrically formed on two sides of the rotating shaft, and two sets of inclined rails, a first buffer rail and a second buffer rail are correspondingly formed on the telescopic part.

In the technical scheme, the telescopic piece is subjected to the lifting force or the downward pressure which are symmetrical, and the telescopic piece is not easy to laterally deviate and interfere the rotating shaft when moving along the axial direction, so that the telescopic piece can move more stably.

In an embodiment of the present application, optionally, one end of each of the buffer rails, which is far away from the inclined rail, is formed with a guiding inclined plane, and the guiding inclined plane is smoothly connected with the corresponding buffer rail and the inner wall of the telescopic member.

In above-mentioned technical scheme, the direction inclined plane can compress the slider gradually and make its warp the shrink, and the direction inclined plane forms the steady excessive area, and the slider can deviate from its buffering track that is located steadily to can get back to the buffering track again under motor drive, thereby realize steadily skidding, the slider is blocked and is kept away from orbital one end of slant at the buffering track when effectively avoiding the drive power of motor less. Under the effect of the guide inclined plane, when the sliding part is separated from the buffer track, the clamping resistance is small, the vibration is small, the whole operation of the driving mechanism is more stable, and the sliding part is not easy to wear.

In a second aspect, an embodiment of the present application provides a locking device, which includes:

a locking member;

in the driving mechanism, the telescopic part of the driving mechanism is connected with the locking part to drive the locking part to move along the axial direction.

The application provides a locking device, owing to have aforementioned actuating mechanism, its locking piece is when removing locking position or unblock position, and the motor can also continue to rotate the certain distance, is difficult to appear the problem of stifled commentaries on classics burning machine.

In an embodiment of the present application, optionally, the locking device further includes:

the elastic piece is abutted between the telescopic piece and the locking piece, and the driving mechanism drives the locking piece to move along the axial direction through the elastic piece.

In above-mentioned technical scheme, because the extensible member passes through the drive of lock piece, when the lock piece is obstructed, the extensible member can remove compression elastic component energy storage, when preventing stifled commentaries on classics burning machine, ensures that the lock piece normally works.

In an embodiment of the present application, optionally, the elastic member includes a spring, the spring is sleeved on the rotating shaft, one leg of the spring is connected to the telescopic member, and the other leg of the spring is connected to the locking member.

In an embodiment of the present application, optionally, the telescopic member is formed with a guide post protruding in an axial direction, and the guide post is formed with a first caulking groove;

one end of the spring is sleeved on the guide post, and one supporting leg of the spring is embedded in the first embedding groove.

In an embodiment of the present application, optionally, the locking member is formed with a receiving cavity and a second caulking groove, and the receiving cavity is communicated with the second caulking groove;

the other end of the spring extends into the accommodating cavity, and the other supporting leg of the spring is embedded in the second embedding groove.

In a third aspect, a lock cylinder includes:

a lock case;

the bolt can be arranged in the lock shell in an extending or retracting way;

the locking device is arranged in the lock shell, and a locking piece of the locking device can extend out to prevent the bolt from retracting.

The application provides a lock core has the aforementioned locking means who is difficult to stifled commentaries on classics burning machine, is difficult to damage, and the performance is more stable, and the durability is good.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic structural diagram of a locking device provided in an embodiment of the present application in a locked state;

fig. 2 is a schematic structural diagram of a locking device provided in an embodiment of the present application in an unlocked state;

fig. 3 is a schematic internal structural diagram of a locking device provided in an embodiment of the present application at a first viewing angle;

fig. 4 is a schematic internal structural diagram of a locking device provided in an embodiment of the present application at a second viewing angle;

FIG. 5 is a cross-sectional view of a locking device provided in accordance with an embodiment of the present application;

fig. 6 is a schematic structural diagram of a motor provided in an embodiment of the present application;

fig. 7 is a schematic cross-sectional view of a telescoping member taken from a first bumper track location according to an embodiment of the present application.

Icon: 100-a motor; 200-a lock; 210-a housing chamber; 220-a second caulking groove; 300-a protective shell; 400-a rotating shaft; 410-a slide; 410 a-a slide; 410 b-a slide; 500-a telescoping member; 510-oblique orbit; 520-a first buffer track; 520 a-a first buffer track; 520 b-a first buffer track; 530-a second buffer track; 540-guide post; 541-a first caulking groove; 550-a guide slope; 550 a-guide ramp; 550 b-a guide ramp; 600-elastic member.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Examples

The present embodiments provide a lock cylinder including a housing, and a locking bolt and a locking device disposed in the housing.

Wherein, the spring bolt can stretch out the lock shell to realize the locking with the cooperation such as lock box or lock beam of outside, when the spring bolt withdraws in the lock shell, then break away from the cooperation and relieve the locking state.

When the bolt extends out, the locking device can limit the bolt to retract so that the bolt keeps a locking state matched with the lock box or the lock beam.

Referring to fig. 1 and 2, the locking device includes a driving mechanism and a locking member 200.

The lock member 200 is provided with a protective shell 300 on the outside, the protective shell 300 is fixed in the lock case, and the lock member 200 is movably installed in the protective shell 300. In some embodiments, the protective shell 300 may be eliminated such that the lockout member 200 is directly removably mounted within the lock housing.

The driving mechanism is used for driving the locking piece 200 to move, and when the locking piece 200 extends out of the protective shell 300, the locking piece can block on the retraction path of the locking bolt, so that the locking bolt is prevented from retracting, and the locking piece is kept in a locking state matched with the lock box or the lock beam.

Fig. 1 shows a schematic view of the locking device in a locked state, in which the lock member 200 is in a locked position preventing retraction of the bolt; fig. 2 shows a schematic structural diagram of the locking device in a locked state, in which the locking member 200 is retracted into the protective shell 300 and located in an unlocked position, and the locking member is out of the retraction path of the locking tongue, so that the locking member can be unlocked.

The driving mechanism of the locking device adopts the motor 100 to provide driving force, in the prior art, due to the inertia of the motor 100 itself or the characteristic that it is difficult to precisely control the number of revolutions for some motors 100 with lower cost, after the locking member 200 reaches the locking position or the unlocking position, the motor 100 may continue to rotate in the same direction, at this time, if the motor 100 is limited to rotate (i.e. locked rotation in the field), the current inside the motor 100 may increase rapidly, which easily causes the motor 100 to burn out and damage.

In the present embodiment, the locking device and the driving mechanism thereof are configured as follows, so that when the locking member 200 is extended to the locking position and retracted to the unlocking position, the motor 100 is not easily locked, and the burn-out situation does not occur.

The internal structure of the locking device with the protective housing 300 removed is shown in fig. 3, 4 and 5, in which the driving mechanism of the locking device is visible.

The driving mechanism comprises a motor 100, a rotating shaft 400 and a telescopic member 500, wherein the motor 100 drives the telescopic member 500 to move along the axial direction through the rotating shaft 400, and the telescopic member 500 drives the locking member 200 to move between the locking position and the unlocking position.

As shown in fig. 6, a rotation shaft 400 is connected to an output end of the motor 100, and a slider 410 is formed on the rotation shaft 400. The slider 410 is a protrusion structure formed on the rotation shaft 400.

The telescopic member 500 is sleeved on the rotating shaft 400, and an inclined track 510, a first buffer track 520 and a second buffer track 530 are formed on the telescopic member 500.

Both ends of the first buffer rail 520 and the second buffer rail 530 are respectively connected to both ends of the inclined rail 510. The first buffer rail 520 extends from one end of the oblique rail 510 to a direction away from the oblique rail 510, and the extending direction is along the circumferential direction of the telescopic member 500; the second buffer rail 530 extends from the other end of the slant rail 510 in a direction away from the slant rail 510, and the extending direction is along the circumferential direction of the telescopic member 500. That is, the first buffer rail 520 and the second buffer rail 530 respectively extend in opposite directions at both ends of the slant rail 510, and the extending direction is along the circumferential direction of the telescopic member 500.

The sliding member 410 protruded from the rotating shaft 400 is engaged with the inclined rail 510, the first buffer rail 520 and the second buffer rail 530.

When the motor 100 rotates and the sliding member 410 on the rotating shaft 400 is engaged with the inclined track 510, the telescopic member 500 can be driven to axially extend or retract.

When the motor 100 drives the rotating shaft 400 to rotate forward, the sliding member 410 moves downward along the inclined rail 510, so that the telescopic member 500 moves upward along the shaft. When the slider 410 moves to the lowest end of the inclined rail 510, the locking member 200 is extended to the locking position, and the telescopic member 500 is moved up to the position.

When the motor 100 drives the rotating shaft 400 to rotate reversely, the sliding member 410 moves upward along the inclined rail 510, so that the telescopic member 500 moves downward in the axial direction. When the slider 410 moves to the uppermost end of the inclined rail 510, the locking member 200 is retracted to the unlocking position, and the telescopic member 500 moves down to the position.

It should be noted that the references to "moving up" and "moving down" are only based on the orientation or positional relationship shown in the drawings of the present application or the orientation or positional relationship which the product of the present application is usually placed in when used, and are only for convenience of describing the present application and simplifying the description, but do not indicate or imply that the device or element to be referred to must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present application.

When the telescopic member 500 moves up or down to the proper position, if the motor 100 cannot stop rotating exactly but has a tendency to continue rotating in the current direction, the sliding member 410 can move along the first buffer rail 520 or the second buffer rail 530, so as not to limit the rotation of the motor 100, which may cause a jam in the burn-out machine.

For example, after the telescopic member 500 drives the locking member 200 to extend to a position where it cannot move upwards, if the motor 100 continues to rotate, the slider 410 enters the first buffering rail 520 from the lowest end of the inclined rail 510 and moves along the first buffering rail 520.

After the retractable member 500 drives the locking member 200 to retract to the proper position and cannot move downward, if the motor 100 continues to rotate, the slider 410 enters the second buffering rail 530 from the top end of the inclined rail 510 and moves along the second buffering rail 530.

Therefore, in the driving mechanism of the locking device provided in this embodiment, the first buffer rail 520 and the second buffer rail 530 are disposed at two ends of the inclined rail 510 of the telescopic member 500, and a certain movement margin is reserved at two ends of the inclined rail 510 for the slider 410 by the first buffer rail 520 and the second buffer rail 530, so as to allow the rotating shaft 400 to continue to rotate with the motor 100 for a while and then stop, thereby effectively preventing the problem of machine burning caused by the fact that the motor 100 cannot accurately stop.

In order to balance the stress on the telescopic member 500 and avoid the interference of the rotating shaft 400 caused by the lateral deviation of the telescopic member 500 due to the lifting force or the downward force applied to one side when the telescopic member 500 moves in the axial direction, two inclined rails 510 are symmetrically disposed on the telescopic member 500, and a first buffer rail 520 and a second buffer rail 530 are disposed at two ends of each inclined rail 510 respectively.

Accordingly, two symmetrically protruding sliding members 410 are formed on the rotating shaft 400.

In one embodiment, the two sliding members 410 are respectively fixed on the rotating shaft 400.

In the present embodiment, the two sliders 410 are integrally molded. Referring to fig. 5 again, the two sliding members 410 are integrally formed as a rod-shaped structure, a radial through hole is formed on the rotating shaft 400, the rod-shaped structure is inserted and fixed in the radial through hole, and two ends of the rod-shaped structure respectively extend out from two ends of the radial through hole to form the sliding member 410 protruding from the surface of the rotating shaft 400.

When the motor 100 rotates, each of the two sliders 410 moves in the corresponding inclined rail 510, applying a symmetrical lifting force or a pressing force to the telescopic member 500, thereby synchronously lifting the telescopic member 500 from both sides or synchronously pressing the telescopic member 500. The telescoping member 500 is stressed evenly and is not prone to lateral deflection.

In practical use, there may be a case where the motor 100 is rotating uncontrollably, and at this time, after the sliding member 410 has moved the first buffer rail 520 or the second buffer rail 530, the motor 100 may not be stopped, and at this time, the motor 100 may be burned due to a locked-up. To further prevent stalling the burn-in, the sliding member 410 is made of an elastic material.

The elastic material may be rubber, a spring wire, or the like, as long as it allows the slider 410 to be deformed by being pressed and to be restored after the pressing is released.

After the sliding member 410 finishes walking the first buffering track 520 or the second buffering track 530, the motor 100 still does not stop rotating, and the sliding member 410 is extruded and deformed at the end of the corresponding buffering track (i.e., the end far away from the inclined track 510) to separate from the first buffering track 520 and the second buffering track 530, enters the inside of the telescopic member 500 after separation, and collides with the inner wall of the telescopic member 500 to rotate circumferentially; when the slider 410 rotates to the first buffering rail 520 or the second buffering rail 530 again, the pressure applied to the slider 410 by the inner wall of the telescopic member 500 disappears, and the slider 410 bounces to be engaged with the buffering rail into which it enters again. Therefore, if the motor 100 is out of control, the sliding member 410 can be continuously separated from the buffer rail and return to the buffer rail, so as to realize slipping and avoid the motor 100 from being burnt due to limited rotation.

In order to enable the sliding of the slider 410 to be more effectively performed, the ends of the first and second buffer rails 520 and 530, which are far from the diagonal rail 510, are respectively provided with a guide slope 550, as shown in fig. 3, the guide slope 550 is formed on the inner wall of the telescopic member 500, the position and shape structure of the guide slope 550 are expressed in the form of a dotted line in fig. 3, and the guide slope 550 extends from the first buffer rail 520 or the second buffer rail 530 along the inner wall of the telescopic member 500 so as to smoothly connect the first buffer rail 520, the second buffer rail 530 and the diagonal rail 510. Optionally, a guiding ramp 550 extends from first buffer rail 520 or second buffer rail 530 to diagonal rail 510 along the inner wall of telescopic member 500.

Referring to fig. 7 again, fig. 7 is a schematic cross-sectional view of the telescopic member 500 cut from the position of the first buffer rail 520, when the sliding member 410 moves to the end of the first buffer rail 520, the guide slope 550 reduces the limit of the end of the first buffer rail 520 on the sliding member 410, so as to prevent the sliding member 410 from being jammed at the end of the first buffer rail 520 when the driving force provided by the motor 100 is small, and thus the sliding member cannot slip. The guide slope 550 can guide the slider 410 to escape from the end of the first buffer rail 520 and gradually compress the slider 410. After the slider 410 passes the guide slope 550, the elastic force is released to extend into the first damping rail 520 again.

The principle of the sliding of the slider 410 at the second buffer rail 530 is the same as that of the sliding of the slider 410 at the first buffer rail 520 described above, and it should be understood by those skilled in the art that the description thereof is omitted.

In this embodiment, two sets of inclined rails 510, a first buffer rail 520 and a second buffer rail 530 are formed on the telescopic member 500. For further explanation, taking fig. 7 as an example, two first buffer tracks 520 can be seen in fig. 7, and for the sake of convenience of distinction, the two first buffer tracks 520a and 520b are respectively shown. Accordingly, the slider 410 includes a slider 410a and a slider 410 b.

The head end of the first buffer track 520a is connected to an inclined track 510, the tail end of the first buffer track 520a is connected to a guide slope 550a, and the guide slope 550a extends to the head end of the first buffer track 520 b. Meanwhile, the head end of the first buffer track 520b is connected to another slant track 510b, the tail end of the first buffer track 520b is connected to a guide slope 550b, and the guide slope 550b extends to the head end of the first buffer track 520 a.

Specifically, the sliding member 410a is engaged with one of the inclined rails 510, and the sliding member 410b is engaged with the other inclined rail 510, so as to drive the telescopic member 500 to ascend and descend. Taking the telescopic member 500 elevated as an example, when the telescopic member 500 is extended to the position without stopping the motor 100, the sliding members 410a and 410b respectively slip.

At this time, the slider 410a moves to the end thereof along the first buffer rail 520a and is separated from the first buffer rail 520a along the guide slope 550 a; if the motor 100 continues to rotate, the slider 410a passes the guide slope 550a into the first buffer rail 520 b. The slider 410b moves to the end along the first buffering rail 520b and disengages from the first buffering rail 520b along the guide slope 550 b; if the motor 100 continues to rotate, the slider 410b passes the guide slope 550b into the first buffer rail 520 a. If motor 100 is now stalled, slides 410a and 410b exchange the mating tracks.

If the motor 100 continues to rotate, the sliding member 410a is separated from the first buffer rail 520b along the guiding inclined plane b, and even returns to the first buffer rail 520a through the guiding inclined plane 550 b; the slider 410b is separated from the first buffer rail 520a along the guide slope 550a and returns to the first buffer rail 520b through the guide slope 550 a. If the motor 100 is stopped at this time, the sliders 410a and 410b are again engaged with the respective original rails.

If the motor 100 is not stopped, the sliders 410a and 410b repeatedly slip.

The above slipping process is a process of slipping the sliding members 410a and 410b on the circumference where the first buffer rail 520 is located after the telescopic member 500 is extended to the proper position, and it should be understood by those skilled in the art that the process of slipping the sliding members 410a and 410b on the circumference where the second buffer rail 530 is located after the telescopic member 500 is retracted to the proper position is the same as above, and will not be described herein again.

In addition, in other embodiments, the telescopic element 500 may also have a set of the inclined rails 510, the first buffer rails 520, and the second buffer rails 530, or may have three, four, or other sets of the inclined rails 510, the first buffer rails 520, and the second buffer rails 530. The number of the sliding members 410 may be one or more.

When only one set of the slant rail 510, the first buffer rail 520 and the second buffer rail 530 is provided on the telescopic member 500, the head end of the first buffer rail 520 is connected to the slant rail 510, and the tail end of the first buffer rail 520 is connected to the guide slope 550, wherein the guide slope 550 extends to the head end of the first buffer rail 520. The slider 410 can be disengaged from the end of the first buffer rail 520 and returned to the head end of the first buffer rail 520 via the guide slope 550, thereby achieving a slip.

From the above, the locking device provided by the present embodiment does not cause the stalling of the machine in the case that the motor 100 of the driving device cannot be stopped accurately or is out of control.

During the slipping process, the sliders 410 are again engaged with the first and second buffer rails 520 and 530 at a very short interval so that the telescopic member 500 is not moved down by gravity and thus can be maintained at the current height.

Further, guide walls for guiding the slider 410 to move on the guide slopes 550 are formed above and below the guide slopes 550 to ensure that the slider 410 smoothly returns to the track. The two guide walls referred to herein mean: two strip-shaped protrusions are formed on the guide slope 550, and two opposite side walls of the two strip-shaped protrusions are used as guide walls, as shown in fig. 3, where two dotted marks are located. The end of the first buffer rail 520 or the end of the second buffer rail 530 is formed with two bar-shaped protrusions, respectively, which are engaged with the end of the corresponding buffer rail for guiding the slider 410 to move on the guide slope 550.

In the drawings of the specification of the present application, the driving mechanism is vertically disposed, the telescopic member 500 moves up and down, and the sliding member 410 is engaged with the guide wall, so as to further prevent the telescopic member 500 from falling under the action of gravity, and ensure that the telescopic member 500 is kept extending or retracting.

However, in some cases, the locking member 200 may not be normally extended or retracted due to obstruction, for example, the exit of the protective casing 300 is blocked, the lock box with which the locking tongue is matched is blocked, and the like, and although the driving mechanism in this embodiment may not cause burn-out damage, an unlocking failure or a locking failure may occur.

For example, the locking member 200 is blocked, the motor 100 stops after rotating according to a predetermined number of revolutions, at this time, the telescopic member 500 cannot normally move due to the sliding of the slider 410, and after the blockage is released, the locking member 200 cannot normally extend or retract, and thus cannot be unlocked or locked. Therefore, an elastic member 600 is disposed between the telescopic member 500 and the locking member 200, and the telescopic member 500 drives the locking member 200 to move through the elastic member 600.

Normally, the motor 100 drives the telescopic member 500 to move up or down, and the telescopic member 500 drives the locking member 200 to extend or retract through the elastic member 600.

When the latch member 200 cannot be extended normally, the motor 100 rotates to drive the telescopic member 500 to move upward, and the elastic member 600 is compressed. When the obstacle is released, the elastic member 600 releases the elastic force to drive the locking member 200 to extend to the locking position.

When the locking member 200 cannot be retracted normally, the motor 100 rotates to drive the telescopic member 500 to move downwards, and the elastic member 600 is stretched. When the obstacle is removed, the elastic member 600 releases the elastic force to drive the locking member 200 to be retracted to the unlocking position.

The driving device is disposed at the position shown in this embodiment, and both ends of the elastic member 600 may or may not be connected to the telescopic member 500 and the locking member 200. When the motor 100 is not connected, the telescopic member 500 is driven to move downwards, and the elastic member 600 and the locking member 200 fall under the action of gravity. When the driving device is disposed in other orientations, such as when the shaft 400 is in a horizontal direction, the two ends of the elastic member 600 are connected to the telescopic member 500 and the locking member 200.

The elastic member 600 may be any structure that can be compressed and stretched to deform, and in this embodiment, the elastic member 600 is a spring.

To facilitate connection of the telescopic member 500, referring to fig. 5 again, the telescopic member 500 is formed with a guide post 540 protruding in the axial direction, and the lower end of the spring is sleeved on the guide post 540.

Because the guide post 540 is in the periphery of the rotating shaft 400, the guide post 540 is spaced between the rotating shaft 400 and the lower end of the spring, so that the inner diameter of the spring is larger than the outer diameter of the rotating shaft 400, the spring is not in contact with the rotating shaft 400, the interference between the spring and the rotating shaft 400 can be effectively avoided, the spring can effectively store energy, and the spring is not easy to wear.

In order to improve the connection stability, a first insertion groove 541 is formed on the guide post 540, and a lower end leg of the spring is inserted into the first insertion groove 541.

To facilitate connection of the locking member 200, referring to fig. 5 again, the locking member 200 is formed with a receiving cavity 210, and the upper end of the spring extends into the receiving cavity 210.

The receiving cavity 210 and the guiding post 540 have guiding functions. The guide post 540 axially compresses or stretches the lower end of the spring to prevent lateral bending, ensuring stable operation of the spring. The accommodating chamber 210 restricts the upper end of the spring from being bent outward, thereby guiding the upper end of the spring to be compressed or stretched in the axial direction, playing a guiding effect, and ensuring the stable operation of the spring.

Meanwhile, referring to fig. 4, a second caulking groove 220 is formed on the locking member 200, the second caulking groove 220 is located on a side wall of the telescopic member 500, and the accommodating cavity 210 is communicated with the second caulking groove 220. The upper leg of the spring passes through the accommodating cavity 210 and is embedded in the second embedding groove 220.

In other embodiments, the second caulking groove 220 may be formed on the sidewall of the accommodating cavity 210 or hidden inside the telescopic member 500.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. A drive mechanism, comprising:

a motor;

the rotating shaft is connected to the output end of the motor, and a sliding part is formed on the rotating shaft;

the telescopic piece is sleeved on the rotating shaft and provided with an inclined rail, and the inclined rail is matched with the sliding piece to drive the telescopic piece to move along the axial direction; and two ends of the oblique track respectively extend in opposite directions along the circumferential direction to form a first buffer track and a second buffer track.

2. The drive mechanism as recited in claim 1, wherein the slider is formed of an elastic material.

3. The driving mechanism as claimed in claim 1 or 2, wherein two sliding members are symmetrically formed on both sides of the rotating shaft, and two sets of inclined rails, a first buffer rail and a second buffer rail are correspondingly formed on the telescopic member.

4. The drive mechanism as claimed in claim 1, wherein each of said buffer rails is formed with a guide slope at an end thereof remote from said diagonal rail, said guide slope smoothly connecting the corresponding buffer rail and an inner wall of the telescopic member.

5. A locking device, comprising:

a locking member;

the drive mechanism of any one of claims 1 to 4, wherein the telescoping member of the drive mechanism is coupled to the locking member to drive the locking member in an axial direction.

6. The locking device of claim 5, further comprising:

the elastic piece is abutted between the telescopic piece and the locking piece, and the driving mechanism drives the locking piece to move along the axial direction through the elastic piece.

7. The locking device of claim 6, wherein the resilient member comprises a spring, the spring is sleeved on the shaft, and one leg of the spring is connected to the extendable member and the other leg of the spring is connected to the locking member.

8. The lock-out mechanism of claim 7, wherein the telescoping member is formed with an axially projecting guide post, the guide post having a first keyway formed therein;

one end of the spring is sleeved on the guide post, and one supporting leg of the spring is embedded in the first embedding groove.

9. The lock-out mechanism of claim 7, wherein the lock-out member is formed with a receiving cavity and a second keyway, the receiving cavity communicating with the second keyway;

the other end of the spring extends into the accommodating cavity, and the other supporting leg of the spring is embedded in the second embedding groove.

10. A lock cylinder, comprising:

a lock case;

the bolt can be arranged in the lock shell in an extending or retracting way;

the lock mechanism of any one of claims 5 to 9, disposed within the housing, the locking member of the lock mechanism being extendable to prevent retraction of the bolt.

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