CN113879191B

CN113879191B - Buckle and vehicle

Info

Publication number: CN113879191B
Application number: CN202111116723.4A
Authority: CN
Inventors: 甘玲; 成治富; 侯李娜; 卜祥健; 刘沈华
Original assignee: Dongfeng Motor Corp
Current assignee: Dongfeng Motor Corp
Priority date: 2021-09-23
Filing date: 2021-09-23
Publication date: 2023-03-31
Anticipated expiration: 2041-09-23
Also published as: CN113879191A

Abstract

The invention relates to a buckle and a vehicle, comprising: the lock catch comprises a body, a lock catch and a locking piece, wherein the body is provided with a through groove penetrating through the surface of the body, the through groove is used for a lock catch to penetrate through, the body is also provided with a groove penetrating through at least one side surface of the body, the extending direction of the groove is vertical to the extending direction of the through groove, and the groove is communicated with the through groove; the locking piece is accommodated in the groove and provided with a stopping part for stopping the lock catch; when the locking piece moves to the first side along the extending direction of the groove, the stopping part can stop the lock catch in the through groove, and when the locking piece moves to the second side along the extending direction of the groove, the lock catch can move out of the through groove. According to the buckle and the vehicle, the locking piece and the stopping part cannot deform in the process of moving to lock or unlock the lock catch, so that the buckle cannot be damaged, and the problems of abnormal sound, cushion looseness and the like cannot be caused.

Description

Buckle and vehicle

Technical Field

The invention relates to the technical field of automobile manufacturing, in particular to a buckle and a vehicle.

Background

With the rapid development of social economy, automobiles in China are more and more popular, and the automobiles play an increasingly important role in daily life of people. Generally install the back row seat pad on the car, the user need dismantle the back row seat pad when installation seat safety cover and vehicle maintenance, takes off the seatpad from the car for being convenient for, and the seatpad needs be fixed through detachable mode and car.

Among the correlation technique, generally be at back row seatpad installation cutting ferrule, wherein, the cutting ferrule sets up the buckle and carries out spacing joint with the car, this structure simple to operate, but the seatpad dismouting several back, the buckle will warp the damage, untimely change the buckle can cause abnormal sound, seatpad not hard up scheduling problem.

Therefore, a new buckle and vehicle are needed to overcome the above problems.

Disclosure of Invention

The embodiment of the invention provides a buckle and a vehicle, and aims to solve the problems that after a seat cushion is disassembled and assembled for several times in the related art, the buckle is deformed and damaged, abnormal sound is generated, and the seat cushion is loosened.

In a first aspect, a buckle is provided, which includes: the lock catch comprises a body, a lock catch and a locking piece, wherein the body is provided with a through groove penetrating through the surface of the body, the through groove is used for a lock catch to penetrate through, the body is also provided with a groove penetrating through at least one side surface of the body, the extending direction of the groove is vertical to the extending direction of the through groove, and the groove is communicated with the through groove; the locking piece is accommodated in the groove and provided with a stopping part for stopping the lock catch; when the locking piece moves to the first side along the extending direction of the groove, the stopping part can stop the lock catch in the through groove, and when the locking piece moves to the second side along the extending direction of the groove, the lock catch can move out of the through groove.

In some embodiments, an elastic member is disposed between the locking piece and the inner wall of the groove, and compresses when the locking piece is pressed toward the second side along the extending direction of the groove, and restores the locking piece when the locking piece is released.

In some embodiments, the locking piece is provided with a locking groove penetrating through the plate surface of the locking piece, the stopping part is formed by protruding from the inner wall of the locking groove to the inside of the locking groove, and the locking groove is used for the lock catch to pass through.

In some embodiments, the stopper divides the locking groove into at least two first grooves and at least one second groove, the two first grooves are respectively located at two opposite sides of the stopper, the second groove is located between the two first grooves, and the second groove communicates the two first grooves; when the stopping part stops the lock catch, the lock catch penetrates through the two first grooves; when the locking piece is pressed towards the second side along the extending direction of the groove, the lock catch can move out of the second groove.

In some embodiments, the body has a stop surface in the groove, the locking plate further includes a protrusion located between the locking groove and the stop surface, and when the locking plate moves to the second side until the protrusion contacts with the stop surface, the stop surface stops the locking plate, and the second groove moves into the through groove.

In some embodiments, the body is further provided with a limiting groove, the limiting groove is formed by recessing from the inner wall of the groove to the bottom of the body, one end of the limiting groove is communicated with the through groove, and the other end of the limiting groove is provided with a blocking wall; the bottom of the locking piece is provided with a limiting convex rib corresponding to the limiting groove, the limiting convex rib is inserted into the limiting groove, and the blocking wall abuts against the outer side of the limiting convex rib.

In some embodiments, the body further includes at least two ribs protruding from an inner wall of the groove into the groove, the two ribs are symmetrically distributed on two opposite sides of the limiting groove, and the two ribs respectively contact two opposite sides of the locking piece.

In some embodiments, a fixing part for fixing with a metal plate of a vehicle body is arranged at the bottom of the body, and the cross section size of the fixing part is smaller than that of the body; the buckle is further provided with a sealing gasket sleeved outside the fixing part, and the sealing gasket is arranged at the bottom of the body.

In a second aspect, a vehicle is provided, comprising: the frame is provided with the buckle; the seat cushion is provided with a lock catch positioned at the bottom of the seat cushion, the lock catch penetrates through the through groove, the stop part stops the lock catch, and when the locking piece moves to the second side along the extending direction of the groove, the stop part is separated from the lock catch.

In some embodiments, the lock catch is U-shaped, and the stop portion is inserted into the lock catch.

The technical scheme provided by the invention has the beneficial effects that:

the embodiment of the invention provides a buckle and a vehicle, wherein the groove of the body is provided with a locking sheet, the locking sheet can move in the groove, the body is also provided with a through groove perpendicular to the groove, the buckle of a seat cushion can enter the through groove, when the buckle is positioned in the through groove, the locking sheet is moved to a first side, the stop part of the locking sheet can be moved to the first side, the buckle is further stopped in the through groove, the locking sheet is moved to a second side opposite to the first side, the stop part can be removed from the buckle, and therefore the buckle can be taken out from the through groove, the locking sheet and the stop part cannot deform in the moving process, the buckle cannot be damaged, and the problems of abnormal sound, cushion looseness and the like cannot be caused.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic perspective exploded view of a buckle according to an embodiment of the present invention;

fig. 2 is a schematic perspective view of a three-dimensional assembly structure of a buckle according to an embodiment of the present invention;

FIG. 3 is a schematic front view of a buckle according to an embodiment of the present invention;

fig. 4 is a schematic top view of a buckle according to an embodiment of the present invention.

In the figure:

1. a body; 11. penetrating a groove; 12. a groove; 14. a limiting groove; 15. a retaining wall; 16. a convex strip; 17. a rib is protruded;

2. locking;

3. a locking piece; 31. a stopper portion; 32. a locking groove; 321. a first groove; 322. a second groove; 33. a projection; 34. limiting convex ribs;

4. an elastic member; 5. a fixed part; 6. and a gasket.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

The embodiment of the invention provides a buckle and a vehicle, which can solve the problems of deformation and damage of the buckle, abnormal sound generation and looseness of a seat cushion after the seat cushion is disassembled and assembled for several times in the related technology.

Referring to fig. 1 and 2, a clip according to an embodiment of the present invention may be used to fix a seat cushion on a sheet metal of a vehicle floor, and the clip may include: the body 1, the body 1 has a through groove 11 penetrating through a plate surface thereof, in this embodiment, the body 1 is preferably rectangular, in other embodiments, the body 1 may also be cylindrical or in other shapes, an upper surface and a lower surface of the body 1 are plate surfaces of the body 1, a periphery of the body 1 is a side surface of the body 1, the through groove 11 penetrates through the two plate surfaces of the body 1 up and down, the through groove 11 is used for allowing a latch 2 to pass through, that is, the latch 2 may be fixed on a seat cushion, and the latch 2 may pass through the through groove 11 and be locked in the through groove 11, in this embodiment, the latch 2 may be in a U shape or an L shape, and the body 1 further has a groove 12 penetrating through at least one side surface thereof, in this embodiment, taking a rear side surface of the body 1 through which the groove 12 passes through as an example, the groove 12 forms an opening on the rear side surface of the body 1, an extending direction of the groove 12 may be perpendicular to an extending direction of the through groove 11, the groove 12 extends in a front-back direction, the groove 11 extends in the up-down direction, and the groove 12 communicates with the through groove 11, so that a part of the through groove 11 overlaps the through groove 11; the locking piece 3 can be contained in the groove 12, the locking piece 3 can move back and forth in the groove 12, and the locking piece 3 is provided with a stopping part 31 for stopping the lock catch 2; when the locking piece 3 moves to the first side (in this embodiment, the rearward side is taken as an example, and in other embodiments, the forward side, the left side or the right side is also taken as an example), and the lock catch 2 is located in the through groove 11, the stop portion 31 can stop the lock catch 2 in the through groove 11, that is, the stop portion 31 can stop above the lock catch 2, and prevent the lock catch 2 from moving out of the through groove 11 upwards, so as to lock the lock catch 2 and the lock catch, when the locking piece 3 moves to the second side (in this embodiment, the forward side is taken as an example, and in other embodiments, the rearward side, the left side or the right side is also taken as an example) along the extending direction of the groove 12, the lock catch 2 can move out of the through groove 11, that is, the stop portion 31 can be separated from the lock catch 2, so that the lock catch 2 is not stopped by the lock catch 31, the lock catch 2 can move out of the through groove 11 smoothly, so as to unlock the seat cushion of the vehicle, the lock catch 3 can be removed from the vehicle seat cushion, and the lock catch 3 can not easily move back and forth, and back and forth, so that the lock catch 3 and back can not easily move, and back and forth, and forth movement of the seat cushion can not easily occur, and back of the vehicle body can not easily occur, and forth, and back of the lock catch 3.

Referring to fig. 1, in some embodiments, an elastic member 4 may be disposed between the locking plate 3 and the inner wall of the groove 12, that is, a gap may be disposed between the locking plate 3 and the inner wall of the groove 12, and the elastic member 4 may be disposed in the gap, where the elastic member 4 may be a spring or another component with elasticity, in this embodiment, two springs are preferably disposed on two opposite sides of the locking plate 3, where one end of each spring may contact with a side wall of the locking plate 3 or may be fixed to a side wall of the locking plate 3, and the other end of each spring may contact with the inner wall of the groove 12 or may be fixed to the inner wall of the groove 12; when the locking piece 3 is pressed towards the second side (i.e. the front side) along the extending direction of the groove 12, the elastic member 4 is compressed, the length is reduced, and when the locking piece 3 is released, the elastic member 4 can restore the locking piece 3 under the action of elastic force, that is, the elastic member 4 can rebound the locking piece 3 to the original locking position. In this embodiment, through setting up elastic component 4, at the in-process of locking or unblock, need not manually with locking piece 3 moves to first side, under the effect of elasticity, locking piece 3 can recover automatically, has increased the convenience of operation.

Referring to fig. 1 and 2, in some alternative embodiments, the locking plate 3 is provided with a locking groove 32 penetrating through the plate surface thereof, in this embodiment, the upper and lower surfaces of the locking plate 3 are two plate surfaces of the locking plate 3, the locking groove 32 penetrates through the two plate surfaces of the locking plate 3 up and down, the stop portion 31 is formed by protruding from the inner wall of the locking groove 32 into the locking groove 32, the locking groove 32 is used for the lock catch 2 to pass through, by providing the locking groove 32, during the locking process of the lock catch 2, the lock catch 2 can be inserted into the through groove 11 and simultaneously passes through the locking groove 32, the stop portion 31 stops the lock catch 2 in the locking groove 32, and the stop portion 31 is not easily damaged and is disposed inside the locking groove 32, the stop portion 31 is not easily collided with other components around the locking plate 3, that is, the stop portion 31 is not easily damaged, and at the same time, the locking plate 3 forms the stop portion 31 by using a part of its own plate material, which also saves the use of plate.

Referring to fig. 1 and 4, in some embodiments, the stop portion 31 may divide the locking groove 32 into at least two first grooves 321 and at least one second groove 322, where the two first grooves 321 are located on opposite sides of the stop portion 31, in this embodiment, the stop portion 31 is located at a middle position in the left-right direction of the locking piece 3, the two first grooves 321 are located on left and right sides of the stop portion 31, the second groove 322 is located between the two first grooves 321, and the second groove 322 communicates with the two first grooves 321, in this embodiment, the second groove 322 is perpendicular to the first grooves 321, in other embodiments, the second groove 322 and the first groove 321 may be set to be an acute angle, an obtuse angle, or other angles according to the shape of the lock catch 2, and meanwhile, the stop portion 31 may divide the locking groove 32 into three or four first grooves 321, two or three second grooves 322, and the like according to the number of the stop portion 31 and the shape of the lock catch 2; when the lock catch 2 is stopped by the stop portion 31, the lock catch 2 penetrates through the two first grooves 321, in this embodiment, taking the lock catch 2 as a U shape as an example, that is, the lock catch 2 may include two vertical rods and a cross rod connecting the two vertical rods, when the lock catch 2 is inserted into the through groove 11, the stop portion 31 can be stopped above the cross rod, and meanwhile, the two vertical rods respectively penetrate through the two first grooves 321 on two sides of the stop portion 31; when the locking piece 3 is pressed to the second side (i.e. forward) along the extending direction of the groove 12, the locking piece 3 and the stop portion 31 move forward together, so that the second groove 322 moves to correspond to the cross bar up and down, and since the second groove 322 is communicated with the first groove 321 and is not blocked by the stop portion 31, the cross bar can be moved out of the second groove 322, so that the latch 2 is unlocked from the latch.

Referring to fig. 1, in some embodiments, the body 1 is provided with a stop surface in the groove 12, in this embodiment, the stop surface is located at the front side of the groove 12, the locking plate 3 further includes a protrusion 33, in this embodiment, the protrusion 33 is formed by protruding forward from the front end surface of the locking plate 3, and the locking groove 32 is located behind the protrusion 33, so that the protrusion 33 is located between the locking groove 32 and the stop surface, when the locking plate 3 moves to the second side (i.e., forward) until the protrusion 33 contacts with the stop surface, the stop surface stops the locking plate 3, and the second groove 322 moves into the through groove 11, i.e., the stop surface can limit the displacement of the locking plate 3 moving forward, and by reasonably setting a gap between the protrusion 33 and the stop surface, when the front end of the protrusion 33 moves to contact with the stop surface, the second groove 322 can just move into the through groove 11, i.e., in the up-down direction, the second through groove 322 can be unlocked, and the crossbar 322 can pass through the through groove; the arrangement of the stop surface and the protruding portion 33 enables an operator to directly press the locking piece 3 forward to a proper position when operating the locking piece 3 to unlock, and whether the second groove 322 enters the through groove 11 or not is not considered too much, and whether the cross bar can be released or not is satisfied.

Referring to fig. 1, in some optional embodiments, the body 1 may further include a limiting groove 14, the limiting groove 14 is formed by recessing from an inner wall of the groove 12 to a bottom of the body 1, in this embodiment, the limiting groove 14 is disposed at a position of the body 1 near a rear portion thereof, one end of the limiting groove 14 is communicated with the through groove 11, and the other end of the limiting groove 14 is provided with a blocking wall 15, in this embodiment, the limiting groove 14 extends in a front-rear direction, a front end of the limiting groove 14 is communicated with the through groove 11, and a rear end of the limiting groove 14 is provided with a blocking wall 15, in other embodiments, the limiting groove 14 may be disposed to extend in a left-right direction or an up-down direction according to a moving direction of the locking piece 3; in this embodiment, the cross-sectional shape of the limiting convex rib 34 may be matched with the cross-sectional shape of the limiting groove 14, so that after the limiting convex rib 34 is installed in the limiting groove 14, the limiting groove 14 may limit the limiting convex rib 34 in the left-right direction, and the locking plate 3 can move along a set track; and the blocking wall 15 positioned outside the limiting groove 14 can prevent the locking piece 3 from moving out of the groove 12. In this embodiment, the limiting groove 14 is preferably disposed at a middle position in the left-right direction of the body 1, in other embodiments, the limiting groove 14 may be disposed at the left side or the right side of the center line of the body 1, in this embodiment, the body 1 is further provided with two convex strips 16 on the inner wall surface of the groove 12, the two convex strips 16 are both disposed side by side with the limiting groove 14, the two convex strips 16 are respectively located at two pairs of two sides of the limiting groove 14, the convex strips 16 are supported at the bottom of the locking piece 3, so as to reduce the contact area between the locking piece 3 and the body 1, and reduce the wear speed of the locking piece 3.

Referring to fig. 1 and 3, in some embodiments, the body 1 may further include at least two ribs 17 disposed in the groove 12, the ribs 17 are formed by protruding from an inner wall of the groove 12 into the groove 12, that is, the ribs 17 protrude from the inner wall of the groove 12, the two ribs 17 are symmetrically disposed on two opposite sides of the limiting groove 14, and the two ribs 17 respectively contact two opposite sides of the locking plate 3, that is, the ribs 17 are located on a side surface of the locking plate 3, a thickness of the ribs 17 in the up-down direction is smaller than a thickness of the locking plate 3 in the up-down direction, compared with a case where the locking plate 3 directly contacts the inner wall of the groove 12, by disposing the ribs 17, a contact area between the locking plate 3 and the body 1 is also reduced on the side surface of the locking plate 3, so that the locking bias wear rate is further reduced, and the ribs 17 located on two sides may also limit the locking plate 3 in the transverse direction.

Referring to fig. 1 to 3, in some optional embodiments, a fixing portion 5 for fixing with a sheet metal of an automobile body may be disposed at the bottom of the body 1, specifically, a fixing hole for fixing the buckle may be disposed on the sheet metal, and the fixing portion 5 may be disposed through the fixing hole and fixed with the fixing hole in a buckle manner, in this embodiment, a cavity is disposed in the fixing portion 5, the through groove 11 communicates with the cavity, and a cross-sectional size of the fixing portion 5 may be smaller than a cross-sectional size of the body 1, so that after the fixing portion 5 passes through the fixing hole, the body 1 may cover the fixing hole at one side of the fixing hole; the buckle can also be located including the cover the outer sealed pad 6 of fixed part 5, sealed 6 pads of filling up locate the bottom of body 1, also, work as after the buckle is installed on the panel beating, sealed pad 6 clamp locate the panel beating with between the body 1, sealed pad 6 can cover and establish around the fixed orifices, and sealed pad 6 generally chooses for use materials such as rubber, and through setting up sealed pad 6, sealed pad 6 can warp, can strengthen the sealing performance of panel beating and body 1 contact department.

An embodiment of the present invention further provides a vehicle, which may include: the frame is provided with the buckle, namely the frame is provided with a metal plate, a fixing hole is formed in the metal plate, and the buckle is arranged in the fixing hole; and a seat cushion, in this embodiment, taking a common rear seat cushion as an example, in other embodiments, the seat cushion may also be a front seat cushion or a seat cushion located at other positions, the seat cushion may have a lock catch 2 located at the bottom of the seat cushion, the lock catch 2 is inserted into the through groove 11, the stop portion 31 stops the lock catch 2, and when the lock plate 3 moves to the second side along the extending direction of the groove 12, the stop portion 31 is separated from the lock catch 2. The buckle in this embodiment may adopt the buckle described in any of the above embodiments, and details are not described herein.

Referring to fig. 1, preferably, the lock catch 2 is U-shaped, and the stop portion 31 is inserted into the lock catch 2; that is, the lock catch 2 may include two vertical rods and a cross rod connecting the two vertical rods, when the lock catch 2 is inserted into the through slot 11, the stopping portion 31 may be stopped above the cross rod, and meanwhile, the two vertical rods are respectively located at two opposite sides of the stopping portion 31; when the locking piece 3 is pressed to the second side (i.e. forward) along the extending direction of the groove 12, the locking piece 3 and the stop portion 31 move forward together, so that the stop portion 31 is separated from the cross bar, and the cross bar can move out of the through groove 11 without being blocked by the stop portion 31, thereby unlocking the lock catch 2 and the buckle.

The principle of a buckle and a vehicle provided by the embodiment of the invention is as follows:

because the locking piece 3 is arranged in the groove 12 of the body 1, the locking piece 3 can move in the groove 12, for example, move in the front-back direction, and the body 1 is further provided with the through groove 11 perpendicular to the groove 12, the lock catch 2 of the seat cushion can enter the through groove 11 along the extending direction of the through groove 11, and when the lock catch 2 is located in the through groove 11, the locking piece 3 can be moved to the first side, so that the stop portion 31 of the locking piece 3 moves to the first side, and then the stop portion 31 can stop the lock catch 2, so that the lock catch 2 is locked in the through groove 11, and after the locking piece 3 is moved to the second side opposite to the first side, the stop portion 31 can be removed from the lock catch 2, so that the limit of the stop portion 31 on the lock catch 2 is released, the lock catch 2 can be taken out of the through groove 11, the lock and unlock of the lock catch 2 can be realized by the back-and forth movement of the locking piece 3, the lock catch 3 and the stop portion 31 cannot deform in the moving process, so that the buckle after being forcibly detached can be prevented from being deformed, and the damage to the lock catch, and the problem of the vehicle, such as looseness can be reduced, and the problem of the vehicle can be solved.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

It is noted that, in the present invention, relational terms such as "first" and "second", and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present invention, which enable those skilled in the art to understand or practice the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A buckle, characterized in that it comprises:

the lock catch comprises a body (1), wherein the body (1) is provided with a through groove (11) penetrating through the plate surface of the body, the through groove (11) is used for a lock catch (2) to penetrate through, the body (1) is further provided with a groove (12) penetrating through at least one side surface of the body, the extending direction of the groove (12) is perpendicular to the extending direction of the through groove (11), and the groove (12) is communicated with the through groove (11);

the locking piece (3) is accommodated in the groove (12), and the locking piece (3) is provided with a stopping part (31) for stopping the lock catch (2);

when the locking piece (3) moves to the first side along the extending direction of the groove (12), the stopping part (31) can stop the lock catch (2) in the through groove (11), and when the locking piece (3) moves to the second side along the extending direction of the groove (12), the lock catch (2) can move out of the through groove (11);

the locking piece (3) is provided with a locking groove (32) penetrating through the plate surface of the locking piece, and the locking groove (32) comprises a second groove (322);

the body (1) is provided with stop surfaces in the groove (12), the locking sheet (3) further comprises a protruding part (33), the protruding part (33) is located between the locking groove (32) and the stop surfaces, when the locking sheet (3) moves to the second side and the protruding part (33) contacts with the stop surfaces, the stop surfaces stop the locking sheet (3), and the second groove (322) moves into the through groove (11);

the body (1) is further provided with a limiting groove (14), the limiting groove (14) is formed by being concavely arranged from the inner wall of the groove (12) to the bottom of the body (1), one end of the limiting groove (14) is communicated with the through groove (11), and the other end of the limiting groove (14) is provided with a blocking wall (15);

the bottom of the locking sheet (3) is provided with a limiting convex rib (34) corresponding to the limiting groove (14), the limiting convex rib (34) is inserted into the limiting groove (14), and the blocking wall (15) abuts against the outer side of the limiting convex rib (34);

the body (1) is further provided with two convex strips (16) on the inner wall surface of the groove (12), the two convex strips (16) are arranged side by side with the limiting groove 14, the two convex strips (16) are respectively positioned on two opposite sides of the limiting groove 14, and the convex strips (16) are supported at the bottom of the locking sheet (3);

the locking piece (3) with be equipped with elastic component (4) between the inner wall of recess (12), when following the extending direction of recess (12) is pressed to the second side when locking piece (3), elastic component (4) compress, when loosening locking piece (3), elastic component (4) will locking piece (3) recover.

2. The buckle of claim 1, wherein:

the stop part (31) is formed by protruding from the inner wall of the locking groove (32) to the inside of the locking groove (32), and the locking groove (32) is used for the lock catch (2) to penetrate through.

3. The buckle of claim 2, wherein:

the locking groove (32) is divided into at least two first grooves (321) and at least one second groove (322) by the stop part (31), the two first grooves (321) are respectively positioned at two opposite sides of the stop part (31), the second groove (322) is positioned between the two first grooves (321), and the second groove (322) is communicated with the two first grooves (321);

when the lock catch (2) is stopped by the stopping part (31), the lock catch (2) penetrates through the two first grooves (321);

when the locking piece (3) is pressed towards the second side along the extending direction of the groove (12), the lock catch (2) can be removed from the second groove (322).

4. The buckle of claim 1, wherein:

the body (1) is further provided with at least two convex ribs (17) in the groove (12), the convex ribs (17) are formed by protruding the inner wall of the groove (12) towards the inner side of the groove (12), the two convex ribs (17) are symmetrically distributed on two opposite sides of the limiting groove (14), and the two convex ribs (17) are respectively contacted with two opposite sides of the locking piece (3).

5. The buckle of claim 1, wherein:

the bottom of the body (1) is provided with a fixing part (5) for fixing with a metal plate of an automobile body, and the cross section size of the fixing part (5) is smaller than that of the body (1);

the buckle is further provided with a sealing gasket (6) sleeved outside the fixing part (5), and the sealing gasket (6) is arranged at the bottom of the body (1).

6. A vehicle, characterized in that it comprises:

a frame fitted with the clasp of claim 1;

the seat cushion is provided with a lock catch (2) located at the bottom of the seat cushion, the lock catch (2) penetrates through the through groove (11), the stop part (31) stops the lock catch (2), and when the locking piece (3) moves to the second side along the extending direction of the groove (12), the stop part (31) is separated from the lock catch (2).

7. The vehicle of claim 6, characterized in that: the lock catch (2) is U-shaped, and the stop part (31) is inserted into the lock catch (2).