CN216097425U - Locking mechanism - Google Patents

Abstract

The application discloses lock attaches mechanism belongs to screw lock and attaches technical field. The application discloses lock attaches mechanism includes: a base; the sliding seat assembly comprises a first sliding seat and a second sliding seat, the first sliding seat is arranged on the base in a sliding mode along a first direction, the second sliding seat is arranged on the base or the first sliding seat in a sliding mode along the first direction, and a first buffer piece is connected between the first sliding seat and the second sliding seat; the locking electric screwdriver is arranged on the second sliding seat and comprises a screwdriver rod; the screw sucker is arranged on the second sliding seat in a sliding mode along the first direction, a through hole for the batch rod to penetrate through is formed in the screw sucker, and a second buffer piece is arranged between the screw sucker and the second sliding seat; the linear driving device is arranged on the base, connected with the first sliding seat and used for driving the sliding seat assembly to slide in the first direction. The utility model provides a lock attaches mechanism, it is at the in-process to work piece lock screw, can reduce the impact force to the work piece in the twinkling of an eye that the screw contacted the work piece, is favorable to ensureing the operation safety, improves the yields.

Description

Locking mechanism

Technical Field

The application relates to the technical field of screw locking, in particular to a locking mechanism.

Background

In the technical field of screw locking, the locking mechanism generally comprises a linear driving mechanism and a locking electric screwdriver, wherein the locking electric screwdriver is arranged on the linear driving mechanism, and is driven by the linear driving mechanism to be close to a workpiece of a screw to be locked. In the process of locking the screw, because the linear driving mechanism drives the lock-attached screwdriver more directly, at the moment that the lock-attached screwdriver inserts the screw into the screw hole on the workpiece to be processed, the linear driving mechanism cannot control the driving force more softly, so that the thrust when the lock-attached screwdriver inserts the screw into the workpiece is larger, and further the workpiece is possibly damaged due to larger impact, and the processing yield is finally influenced.

SUMMERY OF THE UTILITY MODEL

The present application is directed to solving one of the technical problems in the prior art. Therefore, the application provides a locking mechanism, and it is at the in-process to work piece lock screw, can reduce the impact force to the work piece in the twinkling of an eye that the screw contacted the work piece, is favorable to ensureing the operation safety, improves the yields.

The locking mechanism according to the application comprises:

a base;

the sliding seat assembly comprises a first sliding seat and a second sliding seat, the first sliding seat is arranged on the base in a sliding mode along a first direction, the second sliding seat is arranged on the base or the first sliding seat in a sliding mode along the first direction, and a first buffering piece is connected between the first sliding seat and the second sliding seat;

the locking electric batch is arranged on the second sliding seat and comprises a batch rod;

the screw suction head is arranged on the second sliding seat in a sliding mode along the first direction, a through hole for the batch rod to penetrate through is formed in the screw suction head, and a second buffer piece is arranged between the screw suction head and the second sliding seat;

the linear driving device is arranged on the base and connected with the first sliding seat and used for driving the sliding seat assembly to slide in the first direction.

According to the locking mechanism of the embodiment of the application, at least the following beneficial effects are achieved:

through setting up first slide and second slide to set up first bolster between first slide and second slide, first bolster can alleviate linear drive device's drive power, makes the second slide can drive the screw suction head gently and insert the screw in locating the screw hole of work piece. In addition, a second buffer piece is arranged between the screw suction head and the second sliding seat, and the second buffer piece can further buffer the driving force of the second sliding seat to the screw suction head so as to reduce the damage to the surface of the workpiece; meanwhile, the lock attaching screwdriver is fixedly arranged on the second sliding seat, when the screw is locked, the second sliding seat drives the lock attaching screwdriver to continuously press down, the screw sucker can stably press down the screw under the action of the second buffer piece, and the screw is prevented from deflecting in the locking process to influence the locking effect.

Through such setting for the lock attaches the mechanism when locking the screw, can reduce the damage to the work piece, simultaneously, can ensure the locking precision of screw, is favorable to improving the processing yield.

According to some embodiments of the application, the second slide is provided with the mount pad on the slip, the screw suction head set up in the mount pad, the second bolster set up in the second slide with between the mount pad.

According to some embodiments of the present application, a first barrier is provided on the second carriage for limiting an extreme position of the mount sliding in the first direction.

According to some embodiments of the present application, a second barrier is provided on the base for limiting an extreme position of the second carriage sliding in the first direction.

According to some embodiments of the present application, the lock attachment power batch further comprises a rotating head, the rotating head and the batch rod being detachably connected.

According to some embodiments of the present application, an installation cavity is formed in the rotating head, the batch rod is inserted into the installation cavity, an installation hole capable of accommodating the steel ball is formed in the circumferential surface of the rotating head, the wall thickness of the upper side wall of the rotating head is smaller than the diameter of the steel ball, an annular groove is formed in the circumferential surface of one end of the batch rod inserted into the installation cavity, the wall of the annular groove is arc-shaped, and the steel ball is arranged in the installation hole and matched with the annular groove; and a limiting piece is arranged on the rotating head and used for limiting the steel ball in the mounting hole.

According to some embodiments of the application, the rotating head is stepped, the limiting part comprises a limiting ring sleeved on the outer side of the circumferential surface of the rotating head, a spring is connected between the rotating head and the limiting ring, and an avoiding groove for containing the steel balls is formed in the inner side wall of the limiting ring; when the spring is in an initial state, the avoiding groove and the mounting hole are mutually staggered; when the spring is in a compressed state, the avoiding groove is opposite to the mounting hole, and the steel ball can leave the annular groove and enter the avoiding groove.

According to some embodiments of the application, the linear drive comprises a drive motor and a belt drive, the belt drive connecting the drive motor and the first carriage.

According to some embodiments of the present application, a reset device is disposed between the carriage assembly and the base, the reset device being disposed along the first direction.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a perspective view of a locking mechanism according to an embodiment of the present application.

FIG. 2 is a perspective view of a locking mechanism according to an embodiment of the present application.

FIG. 3 is a perspective view of a locking mechanism in one embodiment of the present application.

Fig. 4 is a cross-sectional view of a rotating head according to an embodiment of the present application.

FIG. 5 is a schematic view of an assembly of the batch rod, the rotary head and the retainer ring according to an embodiment of the present disclosure.

Detailed Description

Reference will now be made in detail to the embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the positional descriptions, such as the directions of up, down, left, right, front, rear, and the like, referred to as positional or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.

In the description of the present application, unless otherwise expressly limited, terms such as set, mounted, connected and the like should be construed broadly, and those skilled in the art can reasonably determine the specific meaning of the terms in the present application by combining the detailed contents of the technical solutions.

The locking mechanism of the present application is described below with reference to fig. 1 to 5.

Referring to fig. 1 to 3, the locking mechanism of the present application includes:

a base 100;

the sliding base assembly comprises a first sliding base 210 and a second sliding base 220, the first sliding base is arranged on the base 100 in a sliding mode along a first direction, the second sliding base 220 is arranged on the base 100 or the first sliding base 210 in a sliding mode along the first direction, and a first buffer 230 is connected between the first sliding base 210 and the second sliding base 220;

the locking electric screwdriver 300 is arranged on the second sliding seat 220, and the locking electric screwdriver 300 comprises a screwdriver rod 310;

the screw suction head 400 is arranged on the second sliding seat 220 in a sliding manner along the first direction, a through hole for the batch rod 310 to pass through is formed in the screw suction head 400, and a second buffer piece 240 is arranged between the screw suction head 400 and the second sliding seat 220;

the linear driving device 500 is disposed on the base 100, and the linear driving device 500 is connected to the first carriage 210 for driving the carriage assembly to slide in the first direction.

It can be understood that the base 100 is used to connect with a driving mechanism on the machine platform, so that the driving mechanism on the machine platform can drive the locking mechanism to move on the machine platform, and the operation range of the locking mechanism is increased.

It can be understood that a negative pressure generating device is connected to the screw suction head 400, and the negative pressure generating device is used for generating negative pressure on the screw suction head 400, so that the screw suction head 400 can suck screws; in addition, the screw suction head 400 is provided with a through hole along the first direction, the through hole can accommodate the batch rod 310 to pass through, and the batch rod 310 can be matched with a screw adsorbed at one end of the screw suction head 400 after passing through the through hole and drive the screw to rotate.

It can be understood that the first carriage 210 is connected to the linear driving device 500, the locking block 300 is disposed on the second carriage 220, and the first buffer 230 is disposed between the first carriage 210 and the second carriage 220. The linear driving device 500 does not directly drive the locking electric batch 300, but drives the locking electric batch 300 and the screw suction head 400 to approach or depart from the workpiece in a first direction by driving the first carriage 210, transmitting the driving force to the second carriage 220 by the first buffer 230, and driving the locking electric batch 300 and the screw suction head 400 by the second carriage 220; with this arrangement, the first buffer member 230 can absorb the instantaneous driving force of the linear driving device 500, so that the movement of the locking screwdriver 300 and the screw sucker 400 is more relaxed, the damage to the workpiece during the screw locking process is reduced, and the product yield is improved. Further, the first buffer 230 may be a first spring, and further, a guide post may be disposed inside the first spring.

It can be understood that the locking electric batch 300 is fixedly arranged on the second slide carriage 220, the screw suction head 400 is slidably arranged on the second slide carriage 220, a second buffer member 240 is arranged between the screw suction head 400 and the second slide carriage 220, the second buffer member 240 can be a second spring, and the elastic coefficient of the second spring is smaller than that of the first spring, so that the screw suction head 400 can move synchronously or relatively with the locking electric batch 300.

Specifically, before the second buffer 240 is compressed, the second slide 220 slides, and the screw suction head 400 moves in the first direction synchronously with the locking screwdriver 300 to approach to the workpiece to be locked; when the screw suction head 400 abuts against a workpiece to be screwed, because the elastic coefficient of the first spring is greater than that of the second spring, when the second buffer member 240 is compressed, the second sliding seat 220 can continue to slide, so as to drive the locking screwdriver 300 to continue to approach the screw suction head 400, and enable the screwdriver rod 310 to penetrate through the through hole on the screw suction head 400 until contacting with the screw.

Specifically, before locking the screw, adsorb the screw on it by screw suction head 400, then drive screw suction head 400 by the slide subassembly and move in order to inject the screw into the screw hole on the work piece along first direction, because screw suction head 400 activity sets up in second slide 220, in the moment of screw and the contact of screw hole on the work piece, second bolster 240 can absorb the kinetic energy in the moment of striking to reduce the damage to the work piece. After the screw suction head 400 inserts the screw into the screw hole of the workpiece, the slide carriage assembly continues to move along the first direction under the driving of the linear driving device 500, the lock attaching screwdriver 300 continues to approach the screw and lock the screw in the screw hole of the workpiece under the driving of the second slide carriage 220, and in the process, due to the second buffer member 240, when the lock attaching screwdriver 300 continues to move along the first direction, the screw suction head 400 stably presses the screw in the screw hole of the workpiece under the action of the second buffer member 240, so that the screw can be prevented from deflecting or displacing in the locking process, and the precision of locking the screw can be guaranteed.

Through such setting for the lock attaches the mechanism when locking the screw, can reduce to the damage of work piece ground, simultaneously, can ensure the locking precision of screw, is favorable to improving the processing yield.

Referring to fig. 1 to 3, in some embodiments of the present application, a mounting seat 250 is slidably disposed on the second carriage 220, a screw suction head 400 is disposed on the mounting seat 250, and a second buffer 240 is disposed between the second carriage 220 and the mounting seat 250.

It can be understood that the first slide rail is disposed on the second slide 220, the mounting seat 250 is slidably disposed on the first slide rail, meanwhile, the second buffer 240 may be a second spring, the second spring connects the mounting seat 250 and the slide assembly, and further, a guide pillar is disposed inside the second spring, so that the second spring is not greatly deformed when being compressed. By providing the mounting seat 250 and the screw suction head 400 on the mounting seat 250, the connection structure between the screw suction head 400 and the slider assembly can be simplified, and the assembly is convenient.

Referring to fig. 1 to 3, in some embodiments of the present application, a first barrier 611 is disposed on the second slider 220, and the first barrier 611 is used to limit an extreme position of the sliding of the mount 250 in the first direction.

It can be understood that the first barrier member 611 is disposed at the end of the sliding stroke of the mounting seat 250, and in particular, the first barrier member 611 is disposed on the side of the second slide 220 close to the screw suction head 400, and the first barrier member 611 can limit the sliding stroke of the mounting seat 250 on the second slide 220, so as to prevent the mounting seat 250 from colliding with the slide assembly when sliding on the second slide 220, and causing damage to the second slide 220 or the mounting seat 250. The first barrier member may be made of a soft material, such as rubber or silicone.

Before the screw suction head 400 inserts the screw into the screw hole of the workpiece, the mount 250 contacts the first barrier 611 by the elastic force of the second buffer 240; after the screw driver 300 is completely locked into the screw hole of the workpiece, the linear driving device 500 drives the slider assembly to slide along the first direction, so that the screw driver 300 and the screw head 400 leave the surface of the workpiece, and during the process, at the moment the screw head 400 leaves the surface of the workpiece, the elastic force of the second buffer member 240 makes the mounting seat 250 abut against the first barrier member 611.

Further, be provided with the screw hole along the first direction on the slide subassembly, wear to be equipped with first screw rod in the screw hole, first keeping off piece 611 sets up on first screw rod, through rotatory first screw rod, can realize keeping off the piece 611 with first keeping off and assemble in predetermined position to, first keeping off piece 611 can realize the position fine setting.

Referring to fig. 1 to 3, in some embodiments of the present application, a second barrier 621 is disposed on the base 100, and the second barrier 621 is used to limit an extreme position of the second slide carriage 220 sliding in the first direction.

It can be understood that, a second barrier 621 is disposed at the end of the sliding stroke of the slide carriage assembly, the second barrier 621 is disposed on one side of the base 100 close to the screw head 400, meanwhile, an abutting portion is disposed on the second slide carriage 220, and the second barrier 621 can limit the sliding stroke of the second slide carriage 220 on the base 100, specifically, when the second slide carriage 220 abuts against the second abutting portion, the screw head 400 and the locking screwdriver 300 both stop moving, thereby preventing the locking screwdriver 300 from continuously moving in the first direction under the driving of the second slide carriage 220 and pressing the screw locked on the workpiece, which may result in the screw being broken or the workpiece being damaged. The first barrier member may be made of a soft material, such as rubber or silicone.

Further, a threaded hole is formed in the base 100 along the first direction, a second screw rod penetrates through the threaded hole, the second barrier piece 621 is arranged on the second screw rod, the second barrier piece 621 can be conveniently assembled at a preset position by rotating the second screw rod, and fine adjustment of the position of the second barrier piece 621 can be conveniently performed.

Referring to fig. 3, in some embodiments of the present application, the lock attachment power batch 300 further includes a swivel head 320, the swivel head 320 and the batch rod 310 being detachably connected.

It can be understood that, in order to cope with different screw models, the batch rod 310 is arranged in a detachable connection mode, so that the batch rod 310 can be quickly replaced, and the processing cost is saved. The batch rod 310 and the rotary head 320 may be connected by a snap-fit connection, a latch connection, or the like, and are not limited thereto.

Referring to fig. 4, in some embodiments of the present application, a mounting cavity 321 is formed in a rotary head 320, a batch rod 310 is inserted into the mounting cavity 321, a mounting hole capable of accommodating a steel ball 322 is formed on a circumferential surface of the rotary head 320, a wall thickness of an upper side wall of the rotary head 320 is smaller than a diameter of the steel ball 322, an annular groove 311 is formed on a circumferential surface of one end of the batch rod 310 inserted into the mounting cavity 321, a wall of the annular groove 311 is arc-shaped, and the steel ball 322 is disposed in the mounting hole and is matched with the annular groove 311; a stopper is disposed on the rotary head 320, and the stopper is used for limiting the steel ball 322 in the mounting hole.

It will be appreciated that the batch bar 310 and the connecting head are connected in this manner, and the batch bar 310 is easy to assemble. In the case that the batch rod 310 is fixed to the rotary head 320, the stopper abuts against the circumferential side wall of the rotary head 320, so as to restrict the steel ball 322 in the mounting hole, so that the steel ball 322 can be partially caught in the annular groove 311 of the batch rod 310, thereby fixing the batch rod 310. The limiting member may be a limiting ring 330 or other members capable of limiting the steel ball 322 in the mounting hole.

Specifically, before the batch rod 310 is assembled on the rotary head 320, the retaining members are staggered with respect to the mounting holes, so that the steel balls 322 can freely roll in the mounting holes, then one end of the batch rod 310 is inserted into the mounting cavity 321, after the batch rod 310 is inserted, the retaining members cover the mounting holes, and the steel balls 322 are pressed by the retaining members to move in the mounting holes toward the batch rod 310 and to be matched with the annular grooves 311 on the batch rod 310, so that the batch rod 310 is fixed on the rotary head 320.

It should be understood that, because the batch rod 310 is provided with the annular groove 311, and the side wall of the annular groove 311 is arc-shaped, when the batch rod 310 is subjected to a force along the first direction, the arc-shaped side wall of the annular groove 311 on the batch rod 310 presses the steel ball 322, so that the steel ball 322 rolls in the mounting hole towards the opening direction of the mounting hole, and the steel ball 322 can be separated from the annular groove 311 on the batch rod 310, the fixing and limiting effect on the batch rod 310 is removed, and the batch rod 310 can be smoothly detached. Therefore, when the batch rod 310 is disassembled, the limiting members are staggered from the mounting holes, and then the batch rod 310 is pulled out of the mounting cavity 321.

Referring to fig. 4 and 5, in some embodiments of the present application, the spin head 320 is stepped, the position limiter includes a position limiting ring 330 sleeved outside the circumferential surface of the spin head 320, a spring 340 is connected between the spin head 320 and the position limiting ring 330, and an avoiding groove 331 for accommodating steel balls is formed on the inner sidewall of the position limiting ring 330; when the spring 340 is in an initial state, the avoiding groove 331 and the mounting hole are staggered with each other; when the spring 340 is in a compressed state, the escape groove 331 is located opposite the mounting hole, and the steel ball 322 can leave the annular groove 311 and enter the escape groove 331.

It can be understood that the rotating head 320 is stepped, the rotating head 320 includes a fixing portion and a connecting portion, an inclined end surface is connected between the fixing portion and the connecting portion, the mounting cavity 321 is formed in the connecting portion, the limiting ring 330 is sleeved outside the connecting portion, the inner diameter of the limiting ring 330 is matched with the outer diameter of the connecting portion, and the limiting ring 330 is connected with the spring 340 between the inclined end surfaces, so as to be disposed, when the spring 340 is in a natural state, the limiting ring 330 can cover the opening of the mounting hole, so that the inner side wall of the limiting ring 330 is abutted to the steel ball 322, because the wall thickness of the connecting portion is smaller than the diameter of the steel ball 322, when the inner side wall of the limiting ring 330 is abutted to the steel ball 322, the steel ball 322 can be clamped into the annular groove 311 of the batch rod 310, thereby fixing the batch rod 310 is realized.

Furthermore, an avoiding groove 331 is formed in the inner side wall of the limiting ring 330, and the sum of the depth of the avoiding groove 331 and the depth of the mounting hole is greater than or equal to the diameter of the steel ball 322, so that when the steel ball 322 abuts against the avoiding groove 331, the steel ball 322 completely leaves the annular groove 311, and the batch rod 310 can smoothly move in the mounting cavity 321.

Specifically, when the spring 340 is in a natural state, the avoiding groove 331 and the mounting hole are staggered, in this case, the steel ball 322 enters the annular groove 311 of the batch rod 310, and thus the batch rod 310 is fixed; by compressing the spring 340, when the escape groove 331 is located opposite to the mounting hole, the steel ball 322 is rolled in the mounting hole to be away from the annular groove 311 by pulling the batch lever 310, so that the batch lever 310 can be smoothly pulled out.

Through so setting up, criticize pole 310 easy dismounting, and stable in structure when locking the screw.

Referring to fig. 1 to 3, in some embodiments of the present application, the linear driving device 500 includes a driving motor 510 and a belt transmission 520, and the belt transmission 520 connects the driving motor 510 and the first carriage 210.

It can be understood that, by doing so, the linear driving device 500 is simple in structure and low in cost.

Referring to fig. 1 to 3, in some embodiments of the present application, a reset device 700 is disposed between the first carriage 210 and the base 100, and the reset device 700 is disposed in a first direction.

It can be understood that, after the screw on one screw hole on the workpiece is locked, the linear driving device 500 drives the first sliding seat 210 to move back and reset, and since the first buffer 230 is arranged between the first sliding seat 210 and the second sliding seat 220, the first buffer 230 can absorb a certain driving force, so that the second sliding seat 220 cannot move back quickly along with the first sliding seat 210, and thus the locking mechanism cannot reset quickly, and the operation speed of the locking mechanism is affected.

For this reason, by providing the reset device 700 between the first slide base 210 and the base 100, after the screw locking mechanism locks the screw on the workpiece, in the process that the belt transmission mechanism 520 drives the first slide base 210 to move back, the reset device 700 can rapidly pull back the first slide base 210, thereby reducing the driving load of the linear driving mechanism, thereby being beneficial to improving the reset speed, enabling the lock electric screwdriver 300 and the screw suction head 400 to rapidly reset, and performing the preparation of the next process, thereby improving the processing speed.

The embodiments of the present application have been described in detail with reference to the drawings, but the present application is not limited to the embodiments, and various changes can be made without departing from the spirit of the present application within the knowledge of those skilled in the art.

Claims (9)

1. A locking mechanism, comprising:

a base;

the sliding seat assembly comprises a first sliding seat and a second sliding seat, the first sliding seat is arranged on the base in a sliding mode along a first direction, the second sliding seat is arranged on the base or the first sliding seat in a sliding mode along the first direction, and a first buffering piece is connected between the first sliding seat and the second sliding seat;

the locking electric batch is arranged on the second sliding seat and comprises a batch rod;

the screw suction head is arranged on the second sliding seat in a sliding mode along the first direction, a through hole for the batch rod to penetrate through is formed in the screw suction head, and a second buffer piece is arranged between the screw suction head and the second sliding seat;

the linear driving device is arranged on the base and connected with the first sliding seat and used for driving the sliding seat assembly to slide in the first direction.

2. The locking mechanism of claim 1, wherein: the second slide is gone up to slide and is provided with the mount pad, the screw suction head set up in the mount pad, the second bolster set up in the second slide with between the mount pad.

3. The locking mechanism of claim 2, wherein: and a first barrier piece is arranged on the second sliding seat and used for limiting the limit position of the mounting seat sliding in the first direction.

4. The locking mechanism of claim 1, wherein: and a second barrier piece is arranged on the base and used for limiting the limit position of the second sliding seat sliding in the first direction.

5. The locking mechanism of claim 1, wherein: the lock attaches the electric batch and still includes the rotating head, the rotating head with criticize the pole and can dismantle the connection.

6. The locking mechanism of claim 5, wherein: the rotary head is provided with a mounting cavity, the batch rod is inserted into the mounting cavity, a mounting hole capable of containing steel balls is formed in the circumferential surface of the rotary head, the wall thickness of the upper side wall of the rotary head is smaller than the diameter of the steel balls, an annular groove is formed in the circumferential surface of one end of the batch rod inserted into the mounting cavity, the wall of the annular groove is arc-shaped, and the steel balls are arranged in the mounting hole and matched with the annular groove; and a limiting piece is arranged on the rotating head and used for limiting the steel ball in the mounting hole.

7. The locking mechanism of claim 6, wherein: the rotating head is in a step shape, the limiting part comprises a limiting ring sleeved on the outer side of the circumferential surface of the rotating head, a spring is connected between the rotating head and the limiting ring, and an avoiding groove for containing the steel balls is formed in the inner side wall of the limiting ring; when the spring is in an initial state, the avoiding groove and the mounting hole are mutually staggered; when the spring is in a compressed state, the avoiding groove is opposite to the mounting hole, and the steel ball can leave the annular groove and enter the avoiding groove.

8. The locking mechanism of claim 1, wherein: the linear driving device comprises a driving motor and a belt transmission mechanism, and the belt transmission mechanism is connected with the driving motor and the first sliding seat.

9. The locking mechanism of claim 8, wherein: and a reset device is arranged between the sliding seat assembly and the base and is arranged along the first direction.

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