CN217778331U - Locking mechanism - Google Patents

Abstract

The utility model relates to a new energy automobile technical field discloses a locking mechanism. This locking mechanism includes first connecting seat, second connecting seat, adds latch fitting and gyro wheel. The first connecting seat is provided with an installation through hole along a first direction, and is provided with at least one sliding hole communicated with the installation through hole along a second direction; the second connecting seat can movably penetrate through the mounting through hole along the first direction, at least one rolling hole is formed in the second connecting seat along the second direction, and the rolling hole can be communicated with the sliding hole; a locking piece is arranged in one sliding hole in a sliding mode, and when the rolling hole is communicated with the sliding hole, the part of the locking piece can extend into the rolling hole to lock the first connecting seat and the second connecting seat; a roller is arranged in a rolling hole in a rolling mode, the locking piece can be abutted to the roller, and the roller can push the locking piece to retract into the sliding hole so as to release the first connecting seat and the second connecting seat. The locking mechanism is simple in structure, convenient to operate, capable of automatically locking and good in locking performance.

Description

Locking mechanism

Technical Field

The utility model relates to a new energy automobile technical field especially relates to a locking mechanism.

Background

From the development of new energy automobiles all over the world, power sources of the new energy automobiles mainly comprise lithium ion batteries, nickel-metal hydride batteries, lead-acid batteries and super capacitors, wherein the super capacitors mostly appear in the form of auxiliary power sources. The main reason is that the battery technology is not completely mature or has obvious defects, and compared with the traditional automobile, the cost, the power and the driving mileage have different differences, which is also an important reason for restricting the development of new energy automobiles. In order to better solve the problem of endurance when the battery of the new energy automobile is replaced, the battery replacement process can be generally completed within several minutes in the battery replacement mode, and the convenience is not inferior to that of the conventional energy automobile. The locking mechanism of the quick-change battery pack is a core component in the battery changing process, and is vital to finish the locking and unlocking process smoothly and quickly. At present, a pin clamping and locking mechanism is one of the common locking mechanism forms of quick-change battery packs of electric automobiles, and the technical difficulty of the pin clamping and locking mechanism lies in how a clamping pin is expanded and contracted outwards to realize the locking of the clamping pin and the separation of the clamping pin, and the pin clamping and locking mechanism is complex in structure and complex in operation.

SUMMERY OF THE UTILITY MODEL

Based on it, an object of the utility model is to provide a locking mechanism, simple structure, convenient operation can automatic locking, is convenient for release, and locking performance is better.

In order to achieve the purpose, the utility model adopts the following technical proposal:

a locking mechanism, comprising:

the connecting device comprises a first connecting seat, a second connecting seat and a connecting piece, wherein the first connecting seat is provided with a mounting through hole along a first direction, and is provided with at least one sliding hole communicated with the mounting through hole along a second direction;

the second connecting seat is movably arranged in the mounting through hole in a penetrating mode along the first direction, at least one rolling hole is formed in the second connecting seat along the second direction, the rolling hole can be communicated with the sliding hole, and an included angle is formed between the first direction and the second direction;

the locking piece is arranged in one sliding hole in a sliding mode, and when the rolling hole is communicated with the sliding hole, part of the locking piece can extend into the rolling hole to lock the first connecting seat and the second connecting seat;

the roller, one roll in the roll hole and be provided with one the gyro wheel, add the locking piece can with the gyro wheel butt, the gyro wheel can promote add the locking piece withdrawal in the slide opening, in order to release first connecting seat with the second connecting seat.

As a preferred scheme of the locking mechanism, a release hole is formed in the lower end of the second connecting seat along the first direction, a driving piece is arranged in the release hole, the driving piece is connected to the roller in a driving manner, and the driving piece can drive the roller to push the locking piece to move.

As a preferred scheme of the locking mechanism, the driving member includes a connecting rod and a moving member, a movable groove is formed in the second connecting seat, the movable groove is communicated with both the rolling hole and the release hole, the moving member is movably disposed in the release hole along the first direction, and two ends of the connecting rod respectively penetrate through the movable groove and are rotatably connected to the moving member and the roller.

As a preferable aspect of the locking mechanism, the driving member further includes:

and the unlocking top pin can penetrate through the release hole and drive the moving piece to move along the first direction.

As a preferable mode of the lock mechanism, a step surface is provided at a lower end of the release hole, and the mover can abut against the step surface.

As a preferred scheme of the locking mechanism, the first connecting seat is provided with two sliding holes which are oppositely arranged along the second direction, the second connecting seat is provided with two rolling holes which are oppositely arranged along the second direction, the connecting rods are provided with two connecting rods, one ends of the two connecting rods are rotatably connected to the moving member, and the other ends of the two connecting rods are rotatably connected to the two rollers respectively.

As a preferable aspect of the locking mechanism, the locking mechanism further includes:

one end of the connecting rod is hinged with the moving piece through one rotating pin, and the other end of the connecting rod is hinged with the roller through one rotating pin.

As a preferable aspect of the locking mechanism, the locking member includes:

the fixed seat is arranged on the first connecting seat and is positioned at one end of the sliding hole;

the locking pin is arranged in the sliding hole in a sliding mode along the second direction, and part of the locking pin can extend into the rolling hole;

and two ends of the elastic piece are respectively connected with the fixed seat and the locking pin.

As a preferable scheme of the locking mechanism, at least one flat-bottom groove is formed in the outer wall of the first connecting seat along the first direction, each flat-bottom groove is correspondingly communicated with one sliding hole, and the fixed seat is arranged in the flat-bottom groove and partially extends into the sliding hole.

As a preferable aspect of the locking mechanism, the locking mechanism further includes:

the elastic resetting piece is sleeved on the second connecting seat, and two ends of the elastic resetting piece are respectively connected to the upper end of the first connecting seat and the second connecting seat.

The utility model has the advantages that:

the utility model provides a locking mechanism, this locking structure includes first connecting seat, the second connecting seat, add latch fitting and gyro wheel, through will adding the slide hole that the latch fitting slided and sets up on first connecting seat, when the second connecting seat removed along the first connecting seat of mounting hole orientation, the roll hole on it can communicate with each other with the slide hole on the first connecting seat, when roll hole and slide hole intercommunication, add the latch fitting and can follow the slide hole and slide to the part and stretch into the roll hole, add the latch fitting promptly and connect first connecting seat and second connecting seat and lock. In the process, the first connecting seat and the second connecting seat are only required to be pushed to be close to each other, the locking piece can automatically lock the first connecting seat and the second connecting seat, extra operation is not required, the structure is simple, and the operation is simple and convenient. When the first connecting seat and the second connecting seat need to be unlocked, the roller in the rolling hole pushes the locking piece to be separated from the rolling hole and retract into the sliding hole, no connecting structure is arranged between the sliding hole and the rolling hole, and the first connecting seat and the second connecting seat are released and unlocked. Under the structure, the unlocking is convenient, and the time is saved. Simultaneously, because sliding hole and roll hole can be provided with a plurality ofly, can realize locking and release through a plurality ofly adding latch fitting and gyro wheel between first connecting seat and the second connecting seat promptly, can effectively improve connection stability to improve the connection reliability through the device that first connecting seat and second connecting seat are connected.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

Fig. 1 is a first assembly view of a locking mechanism provided by an embodiment of the present invention;

fig. 2 is a second assembly view of the locking mechanism provided in the embodiment of the present invention;

fig. 3 is an exploded view of a locking mechanism provided in an embodiment of the present invention;

fig. 4 is a cross-sectional view of a locking mechanism provided by an embodiment of the present invention;

fig. 5 is a cross-sectional view of a first connecting seat provided in an embodiment of the present invention;

fig. 6 is a sectional view of a second connecting seat provided in an embodiment of the present invention;

fig. 7 is a first schematic structural diagram of a second connecting seat according to an embodiment of the present invention;

fig. 8 is a second schematic structural view of the second connecting seat according to the embodiment of the present invention;

fig. 9 is a first partial schematic structural diagram of a locking mechanism according to an embodiment of the present invention;

fig. 10 is a schematic partial structural view (illustrating a sleeve) of a locking mechanism according to an embodiment of the present invention.

In the figure:

10. mounting a through hole; 20. a slide hole; 30. rolling the hole; 40. a release aperture; 50. a movable groove; 60. a flat bottom groove; 70. a groove;

1. a first connecting seat; 2. a second connecting seat; 21. a step surface; 3. a locking piece is added; 31. a fixed seat; 32. a locking pin; 33. an elastic member; 4. a roller; 41. a sleeve; 5. a connecting rod; 6. a moving member; 7. unlocking the knock pin; 8. an elastic reset member; 9. a base; 91. and (4) bolts.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be further noted that, for the convenience of description, only some of the structures associated with the present invention are shown in the drawings, not all of them.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element 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 invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

As shown in fig. 1 to 10, the present embodiment provides a locking mechanism, which includes a first connecting seat 1, a second connecting seat 2, a locking member 3 and a roller 4, wherein the first connecting seat 1 is provided with a mounting through hole 10 along a first direction, and at least one sliding hole 20 communicating with the mounting through hole 10 along a second direction; the second connecting seat 2 is movably arranged in the mounting through hole 10 in a penetrating manner along a first direction, at least one rolling hole 30 is formed in the second connecting seat 2 along a second direction, the rolling hole 30 can be communicated with the sliding hole 20, and the second direction and the first direction form an included angle, preferably are perpendicular to each other; one of the sliding holes 20 is provided with a locking piece 3 in a sliding manner, when the rolling hole 30 is communicated with the sliding hole 20, the part of the locking piece 3 can extend into the rolling hole 30 so as to lock the first connecting seat 1 and the second connecting seat 2; and a roller 4 is arranged in one rolling hole 30 in a rolling manner, the locking piece 3 can be abutted against the roller 4, and the roller 4 can push the locking piece 3 to retract into the sliding hole 20 so as to release the first connecting seat 1 and the second connecting seat 2. Through will add in the sliding hole 20 of locking piece 3 slip setting on first connecting seat 1, when second connecting seat 2 removed towards first connecting seat 1 along mounting through hole 10, roll hole 30 on it can communicate with each other with sliding hole 20 on the first connecting seat 1, when roll hole 30 and sliding hole 20 communicate, add in locking piece 3 can slide to the part along sliding hole 20 and stretch into roll hole 30, add locking piece 3 promptly and connect locking with first connecting seat 1 and second connecting seat 2. In the process, the first connecting seat 1 and the second connecting seat 2 are only required to be pushed to be close to each other, the locking piece 3 can automatically lock the first connecting seat 1 and the second connecting seat 2, extra operation is not required, the structure is simple, and the operation is simple and convenient. When the first connecting seat 1 and the second connecting seat 2 need to be unlocked, the roller 4 in the rolling hole 30 pushes the locking piece 3 to be separated from the rolling hole 30 and retract into the sliding hole 20, so that a connection structure between the sliding hole 20 and the rolling hole 30 is omitted, and the first connecting seat 1 and the second connecting seat 2 are released and unlocked. Under the structure, the unlocking is convenient, and the time is saved. Simultaneously, because sliding hole 20 and roll hole 30 can be provided with a plurality ofly, can realize locking and release through a plurality ofly adding latch fitting 3 and gyro wheel 4 between first connecting seat 1 and the second connecting seat 2 promptly, can effectively improve connection stability to improve the connection reliability through the device that first connecting seat 1 and second connecting seat 2 are connected.

Specifically, as shown in fig. 1 to 3, the locking mechanism further includes a base 9, the base 9 is detachably connected to the bottom end of the first connecting seat 1, and a through hole is formed in the base 9 and is communicated with a mounting through hole 10 in the first connecting seat 1. The base 9 is used for connecting a device to be locked. When the two devices need to be locked, the second connecting seat 2 is arranged on one device, and the first connecting seat 1 is connected with the other device in an adapting mode through the base 9. The second connecting seat 2 can be directly fixed on one device, and when the other device needs to be locked on the device, the first connecting seat 1 is connected through the base 9, so that the two devices are locked. Optionally, a first connecting hole is formed in the base 9, a second connecting hole is formed in the first connecting seat 1, and the base 9 and the first connecting seat 1 are connected by penetrating through the connecting piece. Wherein, the quantity and the distribution position of first connecting hole and second connecting hole can set up according to specific demand. Illustratively, the first connecting hole and the second connecting hole are both threaded holes, and the connection is a bolt 91. Simple structure, easily processing, bolt 91 is convenient easy, and firm in connection. Preferably, the base 9 is further provided with a plurality of mounting holes, and when the locking device is connected with the base 9, the connection is realized through the mounting holes.

The locking mechanism provided by the embodiment can be applied to devices in various fields. Locking or unlocking of the two devices is achieved by mounting one device to be locked on the first connecting seat 1 and the other device to be locked on the second connecting seat 2. Exemplarily, the locking mechanism that this embodiment provided is applied to new energy automobile's trade electric field, and second connecting seat 2 fixed mounting can improve structural strength with the integrative setting of frame on the frame of car promptly, and base 9 can be dismantled with the battery package and be connected, and base 9 also can be dismantled with first connecting seat 1 and be connected. When the battery pack is installed, the first connecting seat 1 is connected to the battery pack through the base 9, and then the first connecting seat 1 and the second connecting seat 2 are locked to realize the installation of the battery pack; when the battery package needs to be changed, the first connecting seat 1 and the second connecting seat 2 are unlocked, so that the second connecting seat 2 is separated from the first connecting seat 1, namely, the battery package is separated from the vehicle body. Convenient to use, the location is accurate, has effectively saved the change time cost of battery package. Meanwhile, the locking mechanism can be applied to energy automobiles or battery packs of various models, and is high in applicability.

Preferably, an elastic reset piece 8 is further disposed between the first connecting seat 1 and the second connecting seat 2, the elastic reset piece 8 is sleeved on the second connecting seat 2, and two ends of the elastic reset piece respectively abut against the upper end of the first connecting seat 1 and the second connecting seat 2. Through setting up elasticity piece 8 that resets, can absorb certain vibrational force when first connecting seat 1 and the locking of second connecting seat 2, avoid in operation process to first connecting seat 1, second connecting seat 2 or inside add latch fitting 3 and cause the damage. More preferably, the upper end of first connecting block 1 is blocked along circumference and is equipped with recess 70, and the one end that elasticity resets 8 sets up in recess 70, and recess 70 resets 8 to elasticity and provides limiting displacement, avoids elasticity to reset 8 offset on first connecting block 1, improves connection stability. Alternatively, the elastic restoring member 8 may be a spring, an elastic rubber, or a composite structure of a spring and a rubber.

Further, as shown in fig. 4 to 6, a release hole 40 is formed in the lower end of the second connecting seat 2 along the first direction, a driving member is arranged in the release hole 40, the driving member is connected to the roller 4 in a driving manner, and the driving member can drive the roller 4 to push the locking member 3 to move. When unlocking is needed, the roller 4 is driven to move by the driving piece and the locking piece 3 is driven to retract into the sliding hole 20. In this embodiment, locking piece 3 includes fixing base 31, latch pin 32 and elastic component 33, and fixing base 31 sets up on first connecting seat 1 and is located the one end of sliding hole 20, and latch pin 32 slides along the second direction and sets up in sliding hole 20, and the part of latch pin 32 can stretch into rolling hole 30, and the both ends of elastic component 33 are connected respectively in fixing base 31 and latch pin 32. In the initial state of the elastic element 33, the locking pin 32 is partially located in the release hole 40, and in the process that the second connecting seat 2 approaches the first connecting seat 1 along the installation through hole 10, the bottom end of the second connecting seat 2 abuts against the front end of the locking pin 32, and as the second connecting seat 2 continues to move, the bottom end of the second connecting seat 2 pushes the locking pin 32 into the sliding hole 20; when the rolling hole 30 to which the second connector holder 2 is moved communicates with the sliding hole 20, the locking pin 32 is inserted into the rolling hole 30 by the elastic restoring force of the elastic member 33, thereby achieving automatic locking. When unlocking is needed, the driving piece drives the roller 4 to roll towards the sliding hole 20, and in the process, the roller 4 pushes the locking pin 32 to retract into the sliding hole 20, so that unlocking is achieved. Optionally, the front end of the locking pin 32 may be a plane or an arc, preferably an arc, so that the locking pin 32 is pushed when the second connecting seat 2 moves, and the smoothness of the locking process is improved. Of course, in other embodiments, the locking member 3 may have other configurations, such as by manually pushing the locking member 3 into the rolling hole 30.

Preferably, the bottom of second connecting seat 2 is the tapered, and the bottom of second connecting seat 2 has the inclined plane that contracts to inside promptly for second connecting seat 2 is being close to the in-process of first connecting seat 1, and the inclined plane contact the front end of fitting pin 32 to can promote fitting pin 32 smoothly and retract, the inclined plane has also played the guide effect for fitting pin 32. The smooth and easy nature of locking process has been improved, avoids leading to inner structure wearing and tearing or damage fitting pin 32 etc. comparatively unsmooth at the removal process of second connecting seat 2, improves the durability and the applicable travelling comfort of this locking mechanism.

Preferably, the elastic member 33 is a compression spring. Of course, in other embodiments, the elastic member 33 may have other structures, such as elastic rubber.

Preferably, as shown in fig. 7 and 8, the outer wall of the first connecting base 1 is provided with at least one flat-bottom groove 60 along the first direction, each flat-bottom groove 60 is correspondingly communicated with one sliding hole 20, and the fixing base 31 is arranged in the flat-bottom groove 60 and partially extends into the sliding hole 20. Through setting up flat bottom groove 60, the installation of the fixing base 31 of being convenient for fixing base 31 levels with 1 junction of first connecting seat, improves stability and joint strength.

Specifically, as shown in fig. 3, 4, 8 and 9, the driving member includes a connecting rod 5 and a moving member 6, a moving groove 50 is formed in the second connecting seat 2, the moving groove 50 is communicated with both the rolling hole 30 and the release hole 40, the moving member 6 is movably disposed in the release hole 40 along a first direction, and both ends of the connecting rod 5 respectively pass through the moving groove 50 and are rotatably connected to the moving member 6 and the roller 4. When the moving member 6 moves up or down along the release hole 40, the connecting rod 5 drives the roller 4 to move left and right along the rolling hole 30, wherein the moving slot 50 provides a moving space for the connecting rod 5. When locking, after the locking pin 32 is inserted into the rolling hole 30 and abuts against the roller 4, the roller 4 is driven to move upwards in the second direction, and in the process, the moving member 6 is driven to move downwards. When unlocking, the moving member 6 moves upwards to drive the roller 4 to move outwards in the second direction, and the roller 4 pushes the locking pin 32 to retract into the sliding hole 20. Illustratively, the locking mechanism can be provided with an unlocking top pin 7, the unlocking top pin 7 can penetrate through the through hole of the base 9 and the installation through hole 10 of the first connecting seat 1 and push the moving member 6 to move, the unlocking top pin 7 can be arranged on the lifting mechanism, and when the battery pack is unlocked, the battery pack is unlocked along with the lifting mechanism. The moving piece 6 is pushed through the unlocking ejector pin 7 to achieve unlocking, and the unlocking device is simple in structure, rapid and convenient. Of course, in other embodiments, the moving member 6 may also be driven to move by a driving element, such as a driving cylinder or the like.

Preferably, as shown in fig. 7, the lower end of the release hole 40 is provided with a stepped surface 21, and the mover 6 can abut against the stepped surface 21. Namely, when locking, the locking pin 32 pushes the roller 4 to roll, and drives the moving member 6 to move down to abut against the step surface 21 to stop, so that the roller 4 is prevented from continuously rolling to cause falling off, and the structural integrity and stability of the locking mechanism are improved.

More specifically, the locking mechanism further includes a rotation pin, one end of the link 5 is hinged to the moving member 6 through the rotation pin, and the other end of the link 5 is hinged to the roller 4 through the rotation pin. The connecting rod 5 is rotatably connected with the roller 4 and the connecting rod 5 is rotatably connected with the moving piece 6 through the rotating pin, so that the structure is simple, the processing is convenient, and the manufacturing cost is low; and the rotation is smooth and the connection is stable. Of course, in other embodiments, the connecting rod 5 and the roller 4 and the connecting rod 5 and the moving member 6 can be connected in rotation by other structures.

In this embodiment, the first connecting seat 1 is provided with two sliding holes 20 disposed oppositely along the second direction, the second connecting seat 2 is provided with two rolling holes 30 disposed oppositely along the second direction, and the two sliding holes 20 and the two rolling holes 30 can be communicated in a one-to-one correspondence manner. Specifically, all be provided with one in every sliding hole 20 and add latch fitting 3, all be provided with a gyro wheel 4 in every rolling hole 30, two sliding hole 20 and two rolling holes 30 are equallyd divide and are do not set up relatively, make two when adding first connecting seat 1 of 3 locking of latch fitting and second connecting seat 2, make the junction atress even, improve the connection stability of first connecting seat 1 and second connecting seat 2, thereby promote bearing capacity and the fastness through first connecting seat 1 and second connecting seat 2. More specifically, every gyro wheel 4 is connected with the transmission of moving member 6 through a connecting rod 5 respectively, and when moving member 6 reciprocated promptly, drives two gyro wheels 4 synchronous motion through two connecting rods 5 simultaneously, realizes two sliding hole 20 on the first connecting seat 1 and two rolling hole 30 on the second connecting seat 2 and lock and unblock simultaneously, saves space, improves compact structure nature. Alternatively, as shown in fig. 10, a sleeve 41 is sleeved on the roller 4, a gap is formed on the sleeve 41, the link 5 passes through the gap to connect with the roller 4, and one end of the sleeve 41 can abut against the locking pin 32. Through setting up sleeve 41, can prolong the length of gyro wheel 4 for behind the locking of fitting pin 32, the outer sleeve 41 of two gyro wheels 4 can the butt of each other, makes it to share the pressure of moving member 6, avoids moving member 6 impaired, improves life. Of course, in other embodiments, the sliding hole 20 and the rolling hole 30 may be respectively provided in plural numbers, and the plural rollers 4 are drivingly connected to one moving member 6 through plural connecting rods 5, wherein the connecting rods 5 may be rotationally connected to the rotating member through a ball hinge. Under above-mentioned structure, can effectively improve this locking mechanical system's locking force to improve two and treat locking device's connection stability and bearing capacity.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (10)

1. A locking mechanism, comprising:

the connecting device comprises a first connecting seat (1), wherein a mounting through hole (10) is formed in the first connecting seat (1) along a first direction, and at least one sliding hole (20) communicated with the mounting through hole (10) is formed in a second direction;

the second connecting seat (2) is movably arranged in the mounting through hole (10) in a penetrating manner along the first direction, at least one rolling hole (30) is formed in the second connecting seat (2) along the second direction, the rolling hole (30) can be communicated with the sliding hole (20), and an included angle is formed between the first direction and the second direction;

the locking piece (3) is arranged in one sliding hole (20) in a sliding mode, when the rolling hole (30) is communicated with the sliding hole (20), the part of the locking piece (3) can extend into the rolling hole (30) to lock the first connecting seat (1) and the second connecting seat (2);

gyro wheel (4), one roll in roll hole (30) and be provided with one gyro wheel (4), add latch fitting (3) can with gyro wheel (4) butt, gyro wheel (4) can promote add latch fitting (3) withdrawal in sliding hole (20), in order to release first connecting seat (1) with second connecting seat (2).

2. The locking mechanism according to claim 1, wherein a release hole (40) is formed in the lower end of the second connecting seat (2) along the first direction, a driving member is disposed in the release hole (40), the driving member is drivingly connected to the roller (4), and the driving member can drive the roller (4) to push the locking member (3) to move.

3. The locking mechanism according to claim 2, wherein the driving member comprises a connecting rod (5) and a moving member (6), a movable groove (50) is formed in the second connecting seat (2), the movable groove (50) is communicated with both the rolling hole (30) and the releasing hole (40), the moving member (6) is movably disposed in the releasing hole (40) along the first direction, and two ends of the connecting rod (5) respectively penetrate through the movable groove (50) and are rotatably connected to the moving member (6) and the roller (4).

4. The latching mechanism of claim 3, wherein said drive member further comprises:

the unlocking top pin (7) can penetrate through the release hole (40) and drive the moving piece (6) to move along the first direction.

5. The locking mechanism according to claim 3, characterized in that the lower end of the release hole (40) is provided with a step surface (21), and the moving member (6) can abut against the step surface (21).

6. The locking mechanism according to claim 3, wherein the first connecting seat (1) has two sliding holes (20) disposed oppositely along the second direction, the second connecting seat (2) has two rolling holes (30) disposed oppositely along the second direction, the two connecting rods (5) have two ends, one end of each of the two connecting rods (5) is rotatably connected to the moving member (6), and the other end of each of the two connecting rods (5) is rotatably connected to the two rollers (4).

7. The locking mechanism of claim 3, further comprising:

one end of the connecting rod (5) is hinged with the moving piece (6) through one rotating pin, and the other end of the connecting rod (5) is hinged with the roller (4) through one rotating pin.

8. Locking mechanism according to claim 1, characterized in that the locking piece (3) comprises:

the fixed seat (31) is arranged on the first connecting seat (1) and is positioned at one end of the sliding hole (20);

a locking pin (32) slidably disposed in the sliding hole (20) along the second direction, a portion of the locking pin (32) being capable of extending into the rolling hole (30);

and two ends of the elastic piece (33) are respectively connected to the fixed seat (31) and the locking pin (32).

9. The locking mechanism according to claim 8, characterized in that the outer wall of the first connecting seat (1) is provided with at least one flat-bottom groove (60) along the first direction, each flat-bottom groove (60) is correspondingly communicated with one of the sliding holes (20), and the fixed seat (31) is arranged in the flat-bottom groove (60) and partially extends into the sliding hole (20).

10. The lock mechanism of any one of claims 1-9, further comprising:

elasticity resets piece (8), and the cover is located on second connecting seat (2), the both ends that elasticity resets piece (8) connect respectively in the upper end of first connecting seat (1) with second connecting seat (2).

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