CN111942321B

CN111942321B - Safety belt spring bolt, safety belt and vehicle

Info

Publication number: CN111942321B
Application number: CN201910399777.2A
Authority: CN
Inventors: 涂俊
Original assignee: BYD Co Ltd
Current assignee: BYD Co Ltd
Priority date: 2019-05-14
Filing date: 2019-05-14
Publication date: 2022-03-18
Anticipated expiration: 2039-05-14
Also published as: CN111942321A

Abstract

The application discloses safety belt spring bolt, safety belt and vehicle, the safety belt spring bolt includes: the bolt comprises a bolt body, a first bolt body and a second bolt body, wherein the bolt body is provided with a braid channel, and a first stop surface is arranged at a first port of the braid channel; a deflector movably mounted to the bolt body between a first position and a second position by a pivot axis; the elastic piece is arranged on the bolt body and elastically abuts against the deflection piece so that the deflection piece is always kept at the first position, and when the deflection piece is located at the second position, the elastic piece is driven to elastically deform so that the elastic piece and the first stop surface clamp the mesh belt. The utility model provides a safety belt spring bolt, the locking portion of elastic component supports presses the meshbelt, and the piece that deflects need not undertake the load of meshbelt and to the extruded effect of meshbelt locking simultaneously, reduces the degree of difficulty of the design of the piece that deflects.

Description

Safety belt spring bolt, safety belt and vehicle

Technical Field

The application relates to the technical field of vehicle manufacturing, in particular to a safety belt lock tongue, a safety belt with the safety belt lock tongue and a vehicle with the safety belt.

Background

The safety belt is used for playing the effect of safety restraint to driver and crew, and present safety belt is mostly the bikini safety belt, falls into shoulder strap and waistband with continuous meshbelt through the spring bolt, and when the vehicle bumps, the spring bolt locks the meshbelt to the waistband part extension of restriction meshbelt. In the related art, the acting force applied to the cam is large, so that the process requirement in the production of the cam is large, the overall cost is overhigh, and an improved space exists.

Disclosure of Invention

The present application is directed to solving at least one of the problems in the prior art. To this end, it is an object of the present application to provide a belt latch in which the deflection element does not simultaneously carry the load of the webbing and act on the webbing locking press, and the performance requirements for the deflection element are low.

According to the safety belt spring bolt of this application embodiment includes: the bolt comprises a bolt body, a first bolt body and a second bolt body, wherein the bolt body is provided with a braid channel, and a first stop surface is arranged at a first port of the braid channel; a deflector movably mounted to the bolt body between a first position and a second position by a pivot axis; the elastic piece is arranged on the bolt body and elastically abuts against the deflection piece so that the deflection piece is always kept at the first position, and when the deflection piece is located at the second position, the elastic piece is driven to elastically deform so that the elastic piece and the first stop surface clamp the mesh belt.

According to the safety belt spring bolt of this application embodiment, when the meshbelt locking, the locking part of elastic component supports and presses the meshbelt, and the piece that deflects need not undertake the load of meshbelt simultaneously and to the extruded effect of meshbelt locking, reduces the degree of difficulty of the design of the piece that deflects to realize the low cost of safety belt spring bolt.

The application also provides a safety belt.

The safety belt according to the embodiment of the application comprises the safety belt lock tongue in any one of the embodiments.

The present application further provides a vehicle.

According to the vehicle of the embodiment of the application, the safety belt of the embodiment is arranged.

The advantages of the vehicle, the seat belt and the seat belt latch described above with respect to the prior art are the same and are not described in detail here.

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 an assembly view of a seat belt tongue, webbing, and buckle according to one embodiment of the present application;

fig. 2 is an exploded view of a seat belt latch according to one embodiment of the present application;

fig. 3 is a schematic structural view (including a cross section) of a seat belt buckle according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a seat belt tongue according to an embodiment of the present application

FIG. 5 is a cross-sectional view taken at A-A in FIG. 4;

FIG. 6 is a cross-sectional view taken at B-B of FIG. 4 (with the latch member unlatched);

FIG. 7 is a cross-sectional view taken at B-B of FIG. 4 (with the latch member latched);

FIG. 8 is a cross-sectional view taken at C-C of FIG. 6;

fig. 9 is an exploded view of a seat belt latch according to another embodiment of the present application;

fig. 10 is a schematic diagram of a structure of a seat belt latch according to another embodiment of the present application;

FIG. 11 is a cross-sectional view taken at D-D of FIG. 10;

FIG. 12 is a cross-sectional view taken at E-E of FIG. 10 (with the latch member unlatched);

FIG. 13 is a cross-sectional view taken at E-E of FIG. 10 (with the latch member latched);

fig. 14 is a schematic structural view (side view) of a seat belt tongue according to another embodiment of the present application;

fig. 15 is a cross-sectional view at F-F in fig. 14.

Reference numerals:

the seat belt buckle 100 is provided with a seat belt buckle,

the bolt body 1, the webbing channel 10, the first port 11, the first stop surface 111, the second port 12, the metal framework 13, the plastic layer 14, the first sliding surface 141, the sliding groove 142, the rib plate 15, the mounting hole 151, the mounting post 152, the lock hole 16, the limit boss 17, the limit post 18,

the deflector 2, the through hole 21, the lug 22, the locking groove 23, the second sliding surface 241, the spool 25, the retaining groove 26,

the elastic piece 3, the locking part 31, the connecting part 32, the connecting section 321, the winding section 322, the pressing section 323, the arc-shaped surface 33,

a cover plate 4, a pivot shaft 5, a connecting column 6,

a webbing 101, a shoulder strap 102, a waist belt 103, and a buckle 104.

Detailed Description

Reference will now be made in detail to 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.

Unless otherwise specified, the front-rear direction in the present application is the longitudinal direction of the vehicle, i.e., the X direction; the left and right directions are the transverse direction of the vehicle, namely the Y direction; the up-down direction is the vertical direction of the vehicle, i.e., the Z direction.

Referring to fig. 1 to 15, in a seat belt latch 100 according to an embodiment of the present invention, when a vehicle encounters an emergency collision, a webbing 101 presses a deflector 2, and the deflector 2 rotates and drives an elastic member 3 to press the webbing 101, so that the deflector 2 does not simultaneously bear the load of the webbing 101 and act on locking and pressing of the webbing 101, and the difficulty in designing the deflector 2 is reduced, thereby achieving cost reduction of the seat belt latch 100.

As shown in fig. 1 to 15, a seatbelt lock tongue 100 according to an embodiment of the present application includes: the bolt body 1, pivot axle 5, deflection piece 2 and elastic component 3.

As shown in fig. 6 and 7, the tongue body 1 has a webbing passage 10, the webbing passage 10 penetrates through the tongue body 1, the webbing 101 can pass through the webbing passage 10, and the webbing 101 can be slidably engaged with the tongue body 1, so that the tongue body 1 can slide to different positions of the webbing 101, and thus, the distance between the tongue body 1 and the fixed end (the end connected to the vehicle body) of the webbing 101 can be adjusted.

As shown in fig. 2, 3 and 4, the tongue body 1 has a locking hole 16 for engaging with a buckle 104 of a seat belt, and when a portion of the tongue body 1 where the locking hole 16 is provided extends into the buckle 104, as shown in fig. 3, the tongue body 1 is adapted to be inserted into the buckle 104 in a direction a, the tongue body 1 is locked with the buckle 104, and the longest distance between a fixed end (an end connected to a vehicle body) of the buckle 104 and the tongue body 1 is stable. Thus, when the safety belt is used, as shown in fig. 1, the bolt body 1 is locked with the buckle 104, the driver and passengers are limited in the safety space by the mesh belt 101, the bolt body 1, the buckle 104 and the seat, and the matching position of the bolt body 1 and the mesh belt 101 is adjustable, so that the size of the safety space is adjustable, and the safety belt is convenient to adapt to drivers and passengers with different body types. As shown in fig. 3, the direction b is toward the user.

As shown in fig. 6 and 7, the webbing channel 10 has a first port 11 and a second port 12, the first port 11 and the second port 12 are arranged at an interval, and the first port 11 and the second port 12 are respectively used for the webbing 101 to penetrate or penetrate out, and when the first port 11 or the second port 12 is closed, the webbing 101 is locked in the corresponding port, so that the relative sliding between the webbing 101 and the tongue body 1 can be limited, and the effective protection of the driver and passengers can be ensured. The belt 101 is divided into a shoulder belt 102 and a waist belt 103 by the bolt body 1, the shoulder belt 102 and the waist belt 103 are respectively used for restraining the shoulder and the waist of a driver, and when the body of the driver leans forward rapidly, the shoulder belt 102 and the waist belt 103 are tightened simultaneously to prevent the driver from accidents.

As shown in fig. 6 and 7, a first stopping surface 111 is disposed at the first port 11 of the webbing channel 10, when the first port 11 is not closed, an included angle exists between the first stopping surface 111 and the extending direction of the webbing 101, and the first stopping surface 111 is spaced from the webbing 101, so that a driver and an occupant can adjust the use length of the webbing 101 normally to adapt to different body types.

The deflecting piece 2 is movably mounted on the bolt body 1 between a first position and a second position, and the deflecting piece 2 is located in the webbing passage 10, and the deflecting piece 2 can rotate relative to the bolt body 1.

The elastic element 3 is installed on the bolt body 1, and the elastic element 3 elastically presses against the deflecting element 2, so that the deflecting element 2 is always kept at the first position, that is, when the deflecting element 3 is not acted by the webbing, the elastic element 3 pre-tensions the deflecting element 2 at the first position. When the deflecting member 2 is located at the second position, the elastic member 3 is driven to be elastically deformed so that the elastic member 3 and the first stopper surface 111 serve to clamp the webbing 101.

As shown in fig. 6 and 12, when the deflecting member 2 is at the first position, the elastic member 3 and the webbing belt 101 are not in complete contact and have no pressing force therebetween, the webbing belt 101 can slide freely, when the deflecting member 2 is at the second position, the elastic member 3 faces the first stopping surface 111, and the webbing belt 101 is locked between the first stopping surface 111 and the elastic member 3.

It should be noted that when the webbing 101 is length adjusted, as shown in fig. 6 and 12, the deflector 2 is in the first position, in which the webbing passage 10 is open and the webbing 101 is length adjustable. From this, the piece 2 that deflects does not receive the effort of meshbelt 101, and the elastic force of elastic component 3 acts on the piece 2 that deflects, and will deflect that piece 2 keeps steadily in the first position so that the first port 11 of meshbelt passageway 10 is in open state, like this, is convenient for adjust the relative position of tongue body 1 and meshbelt 101, and then makes the length of meshbelt 101 can adapt to driver and passenger's size well, can not cause the constraint effect of meshbelt 101 to be too tight or too loose.

When the vehicle encounters an emergency collision, the tension of the shoulder belt 102 and the waist belt 103 acts on the deflector 2, and drives the deflector 2 to rotate from the first position to the second position, as shown in fig. 7 and 13, the deflector 2 pushes the elastic member 3 to gradually press against the webbing 101, and when the deflector 2 moves to the limit position, the first stop surface 111 and the elastic member 3 lock the webbing 101, so that the relative position of the tongue body 1 and the webbing 101 is fixed, and the safety restraint of the driver and the passenger is facilitated.

The pressure of meshbelt 101 acts on deflector 2, because locking portion 31 supports and presses deflector 2, consequently, deflector 2 can be with deflecting load on adding the locking portion 31 of elastic component 3, locking portion 31 is cylindricly, the face of cylinder structure of rethread locking portion 31, face of cylinder surface smoothness is high, compress tightly meshbelt 101 between locking portion 31 and first backstop face, and can not cause the meshbelt wearing and tearing, this makes the elastic component 3 and the spring bolt body 1 of pressing from both sides tight meshbelt 101 contact with meshbelt 101 with more economic form, and with meshbelt 101 locking, the manufacturing requirement of deflector 2 has been reduced.

In this way, when the webbing 101 is locked, the webbing 101 has a pushing action on the deflector 2, and the elastic member 3 locks the webbing 101 at a position facing the first stopper surface 111, so that the deflector 2 does not simultaneously bear the load of the webbing 101 and acts to lock and squeeze the webbing 101, and the difficulty in designing the deflector 2 is reduced, thereby achieving cost reduction of the seatbelt lock tongue 100.

Wherein, the position that deflects piece 2 and elastic component 3 offset does not contact with meshbelt 101, like this, deflects piece 2 and can not cause wearing and tearing to meshbelt 101, reduces the requirement to the roughness of the surface of deflecting piece 2 simultaneously, need not do the processing of refining to the surface of deflecting piece 2, reduces to deflect piece 2 and does wear-resisting the cost of handling, reduces the technology degree of difficulty that deflects piece 2. For example, the deflector 2 can be manufactured by a stamping process, and the processing cost is low.

Of course, the first stopping surface 111 and the elastic member 3 may be provided with anti-slip threads to increase the friction force between the first stopping surface 111, the elastic member 3 and the webbing 101, so as to prevent the webbing 101 from sliding relative to the tongue body 1, or the first stopping surface 111 and the elastic member 3 may be provided with concave-convex teeth which are engaged with each other, so as to increase the friction force.

According to the seatbelt lock tongue 100 of the embodiment of the present application, when the webbing 101 is locked, the elastic member 3 is pressed against the webbing 101, and the deflecting member 2 does not simultaneously bear the load of the webbing 101 and the effect of locking and squeezing the webbing 101, thereby reducing the difficulty of designing the deflecting member 2, and achieving cost reduction of the seatbelt lock tongue 100.

In some embodiments, as shown in fig. 7 and 12, the elastic member 3 has an arc surface 33, the arc surface 33 protrudes toward the first stop surface 111, when the deflector 2 is located at the second position, the arc surface 33 and the first stop surface 111 face each other, the arc surface 33 faces the first stop surface 111, and the arc surface 33 and the first stop surface 111 clamp the webbing 101, wherein the arc surface 33 and the first stop surface 111 both protrude toward each other, so that when the deflector 2 is located at the second position, the gap between the arc surface 33 and the first stop surface 111 is small, which ensures that the webbing 101 can be stably locked between the arc surface 33 and the first stop surface 111, thereby achieving the safety protection effect of the seat belt on the driver and passenger.

The seat belt tongue of one embodiment of the present application is described below with reference to fig. 2-8.

As shown in fig. 2 to 8, a seat belt tongue 100 according to an embodiment of the present application includes: the bolt body 1, pivot axle 5, deflection piece 2 and elastic component 3.

As shown in fig. 6-7, the deflecting piece 2 is rotatably mounted to the bolt body 1 between a first position and a second position, and the deflecting piece 2 is located in the webbing passage 10, and the deflecting piece 2 can rotate relative to the bolt body 1, and as shown in fig. 7, the deflecting piece 2 and the bolt body 1 rotate relative to each other in the direction c. As shown in fig. 6, when the deflecting member 2 is located at the first position, the first port 11 and the second port 12 of the webbing channel 10 are both open, the webbing 101 can slide freely in the webbing channel 10, so as to adjust the relative position of the webbing 101 and the tongue body 1, and at the second position, the first port 11 and/or the second port 12 of the webbing channel 10 are/is closed, so that the webbing 101 is locked, so that the relative position of the webbing 101 and the tongue body 1 is fixed, and the occupant can be restrained in the safety area by the safety belt. As shown in fig. 7, the deflector 2 is in the second position, and the deflector 2 and the elastic member 3 close the first port 11, and the webbing 101 is locked between the elastic member 3 and the first stop surface 111, whereby the position of the webbing 101 can be fixed.

Wherein the deflector 2 is rotatably mounted to the bolt body 1 by means of a pivot shaft 5. As shown in fig. 2, the tongue body 1 is provided with a rib plate 15, the tongue body 1 is provided with a mounting hole 151, the mounting hole 151 is provided in the rib plate 15, that is, the two rib plates 15 which are oppositely arranged are both provided with the mounting hole 151, as shown in fig. 2, the deflecting member 2 is provided with a through hole 21, the mounting hole 151 is right opposite to the through hole 21, and the pivot shaft 5 penetrates through the mounting hole 151 and the through hole 21, therefore, the deflecting member 2 can be rotatably mounted on the tongue body 1, the structure is simple, and in the process of dismounting the seat belt tongue 100, the pivot shaft 5 can be drawn out from the mounting hole 151 and the through hole 21, the deflecting member 2 can be detached from the tongue body 1, the dismounting is convenient, and the assembly of the seat belt tongue 100 is easy to realize.

Certainly, the deflecting piece 2 can also be rotatably installed on the bolt body 1 in other manners, for example, the two side faces of the two rib plates 15 of the bolt body 1 facing each other are provided with cylinders, the two cylinders are arranged just opposite to each other, the deflecting piece 2 is provided with two through holes 21, and the cylinders penetrate through the through holes 21 so that the deflecting piece 2 is installed on the cylinders, so that the deflecting piece 2 and the bolt body 1 can rotate relatively.

As shown in fig. 2, the elastic member 3 includes a locking portion 31 and a connecting portion 32, the connecting portion 32 is connected to two ends of the locking portion 31, that is, the two ends of the locking portion 31 are both connected to the connecting portion 32, the locking portion 31 presses against the deflecting member 2, the locking portion 31 is connected to the connecting portion 32, and the connecting portion 32 is rotatably connected to the tongue body 1, so that the deflecting member 2 is rotatably mounted to the tongue body 1 between the first position and the second position, and the locking portion 31 and the first stop surface 111 are used for clamping the webbing 101. As shown in fig. 2, the lock portion 31 is rod-shaped, at least a part of the wall surface of the outer peripheral wall of the lock portion 31 is formed as an arc surface 33, and when the lock portion 31 presses the webbing 101, the arc surface 33 comes into contact with the webbing 101.

When the deflecting member 2 is at the first position, the locking portion 31 and the webbing 101 are not in complete contact and have no pressing force therebetween, the webbing 101 can slide freely, when the deflecting member 2 is at the second position, the locking portion 31 faces the first stopping surface 111, and the webbing 101 is locked between the first stopping surface 111 and the locking portion 31.

It should be noted that when the webbing 101 is length adjusted, as shown in fig. 6, the deflector 2 is in the first position, in which the webbing passage 10 is open and the webbing 101 is length adjustable. From this, the piece 2 that deflects does not receive the effort of meshbelt 101, and the elastic force of elastic component 3 acts on the piece 2 that deflects, and will deflect that piece 2 keeps steadily in the first position so that the first port 11 of meshbelt passageway 10 is in open state, like this, is convenient for adjust the relative position of tongue body 1 and meshbelt 101, and then makes the length of meshbelt 101 can adapt to driver and passenger's size well, can not cause the constraint effect of meshbelt 101 to be too tight or too loose.

When the vehicle encounters an emergency collision, the tension of the shoulder belt 102 and the waist belt 103 acts on the deflector 2, and drives the deflector 2 to rotate from the first position to the second position, as shown in fig. 7, the locking portion 31 gradually presses against the webbing 101, and when the deflector 2 moves to the extreme position, the first stop surface 111 and the locking portion 31 lock the webbing 101, so that the relative position between the tongue body 1 and the webbing 101 is fixed, and the safety restraint of the driver and passengers is facilitated.

In other words, the pressure of the webbing 101 acts on the deflector 2, the deflector 2 applies the deflecting load to the locking portion 31 of the elastic member 3, the locking portion 31 is cylindrical, and the webbing 101 is pressed between the locking portion 31 and the first stop surface through the cylindrical surface structure of the locking portion 31, so that the elastic member 3 clamping the webbing 101 and the tongue body 1 are in contact with the webbing 101 in a more economical manner, the webbing 101 is locked, and the manufacturing requirement of the deflector 2 is reduced.

Wherein, the position that deflects piece 2 and locking portion 31 offset does not contact with meshbelt 101, and like this, the piece 2 that deflects can not lead to the fact wearing and tearing to meshbelt 101, reduces the requirement to the roughness of the surface of the piece 2 that deflects simultaneously, need not do the processing that becomes more meticulous to the surface of the piece 2 that deflects, reduces to the cost that the wear-resisting processing was done to the piece 2 that deflects, reduces the technology degree of difficulty that deflects piece 2. For example, the deflector 2 can be manufactured by a stamping process, and the processing cost is low.

The included angle between the first stop surface 111 and the axis of the first port 11 is α, which satisfies: 0 degrees < alpha is less than or equal to 90 degrees, if alpha is 30 degrees, or alpha is 45 degrees, or alpha is 65 degrees, in this way, when the included angle between the setting angle of the first stopping surface 111 and the axis of the first port 11 satisfies the range, the acting force of the first stopping surface 111 and the locking part 31 of the elastic part 3 on the webbing 101 can be made to be larger than the supporting force of the deflection part 2, therefore, the webbing 101 can be stably locked between the first stopping surface 111 and the locking part 31, the free sliding of the webbing 101 is guaranteed, the relative sliding of the webbing 101 and the bolt body 1 during the emergency collision of the vehicle is avoided, the driving safety is improved, and the life safety of a user is guaranteed.

Of course, the first stopping surface 111 and the locking portion 31 may be provided with anti-slip threads to increase the friction between the first stopping surface 111, the locking portion 31 and the webbing 101, so as to prevent the webbing 101 from sliding relative to the tongue body 1, or the first stopping surface 111 and the locking portion 31 may be provided with concave and convex teeth which are engaged with each other, so as to increase the friction.

In some embodiments, as shown in fig. 2, 6 and 7, the deflector 2 is provided with a locking groove provided at the end of the deflector 2 near the webbing channel 10, which locking groove is open towards the webbing channel 10 and, when the deflector 2 is in the second position, faces the first stop surface 111, wherein the locking portion 31 abuts against the wall surface of the locking groove. As shown in fig. 2, the locking portion 31 is in the shape of a circular rod, and the wall surface of the locking groove is an arc surface, so that in the process that the deflector 2 and the locking portion 31 are pressed against each other, the locking portion 31 and the wall surface of the locking groove can be stably contacted, and when the deflector 2 is at the second position, the position of the locking portion 31 does not shift, and the webbing 101 can be stably and reliably locked between the locking portion 31 and the first stopping surface 111. At the same time, the locking portion 31 makes good contact with the deflector 2, so that the locking portion 31 is always held in the first position against the deflector 2 when the deflector 2 is not acted upon by the webbing 101.

As shown in fig. 2, both ends of the deflecting member 2 are provided with lugs 22, the two lugs 22 are arranged oppositely, the lugs 22 are provided with through holes 21, the through holes 21 of the two lugs 22 are arranged oppositely, the pivot shaft 5 penetrates through the through holes 21 to connect the deflecting member 2 and the bolt body 1 in a pivoting manner, the structure is simple, in the process of disassembling the safety belt bolt 100, the pivot shaft 5 can be drawn out from the through holes 21, the deflecting member 2 and the bolt body 1 can be disassembled, the disassembly and the assembly are convenient, and the assembly of the safety belt bolt 100 is easy to realize.

As shown in fig. 2, the locking groove 23 and the lug 22 are both located on the same side of the deflecting member 2, and the locking groove 23 is located on one side of the lug 22 close to the first port 11, and the locking groove 23 is spaced from the axis of the through hole 21, so that in the rotating process of the deflecting member 2, the inner wall of the locking groove 23 drives the locking portion 31 to wind around the pivot shaft 5, and further the locking portion 31 is opposite to the first stop surface 111, and it is ensured that the webbing 101 can be stably locked between the locking portion 31 and the first stop surface 11, and the effect of locking the webbing 101 is realized, and the deflecting member 2 has a simple structure, is convenient to install, and is easy to realize matching with the elastic member 3.

In some embodiments, as shown in fig. 2, the bolt body 1 has two ribs 15, the two ribs 15 are disposed opposite to each other, and the deflecting member 2 is located between the two ribs 15, wherein, as shown in fig. 2, the bolt body 1 is provided with a mounting post 152, the mounting post 152 is disposed on a side of the rib 15 close to the deflecting member 2, that is, the side faces of the two ribs 15 facing each other are both provided with the mounting post 152, wherein at least a portion of the connecting portion 32 is wound on the mounting post 152, one end of the connecting portion 32 is connected to the locking portion 31, and the other end of the connecting portion 32 is connected to the bolt body 1.

In the process that the deflecting piece 2 rotates from the first position to the second position, the first end of the connecting portion 32 moves along with the deflecting piece 2 and simultaneously rotates around the mounting post 152, the second end of the connecting portion 32 abuts against the bolt body 1, and the connecting portion 32 is integrally tightened, that is, the elastic potential energy of the elastic piece 3 is increased, after the acting force of the webbing 101 on the deflecting piece 2 is eliminated, the elastic potential energy of the elastic piece 3 does work, the connecting portion 32 gradually opens, meanwhile, the locking portion 31 of the elastic piece 3 drives the deflecting piece 2 to rotate from the second position to the first position, the locking portion 31 is gradually separated from the webbing 101, and then the webbing channel 10 is opened.

In this way, through the special structural design of elastic component 3, can make deflection piece 2 can restore to the first position automatically when not receiving the effort of meshbelt 101, guarantee that meshbelt 101 can be adjusted in a flexible way, improve the rationality of the overall structure design of safety belt spring bolt 100.

As shown in fig. 2, the connection portion 32 includes: a connecting section 321, a winding section 322 and a pressing section 323.

As shown in fig. 2, the connection section 321, the winding section 322, and the pressing section 323 are sequentially connected, that is, two ends of the winding end are respectively connected to the connection section 321 and the pressing section 323, one end of the connection section 321, which is away from the winding section 322, is connected to the locking portion 31, the winding section 322 is wound around the mounting post 152, and the pressing section 323 is pressed against the inner wall of the bolt body 1.

Thus, the two ends connected to the winding section 322 respectively press against the bolt body 1 and the deflecting member 2, and as shown in fig. 2, the winding section 322 is wound around the mounting post 152, and the winding section 322 is U-shaped (or V-shaped) as a whole. In the process that the deflection piece 2 is rotated to the second position from the first position by the acting force of the mesh belt 101, the locking part 31 rotates around the mounting post 152, the winding section 322 is tightened up and the elastic potential energy is increased, when the deflection piece 2 is not rotated by the acting force of the mesh belt 101, the elastic potential energy of the winding section 322 does work, one end of the winding section 322 connected with the locking part 31 drives the locking part 31 to rotate, and meanwhile, the deflection piece 2 is driven to rotate to the first position from the second position, therefore, the deflection piece 2 can be automatically restored to the first position when not being rotated by the acting force of the mesh belt 101, the mesh belt 101 can be flexibly adjusted, and the reasonability of the overall structure design of the safety belt lock tongue 100 is improved.

In some embodiments, one side of the abutting section 323 away from the connecting section 321 has an abutting surface, the abutting surface contacts with the inner side surface of the lock tongue body 1, and the radius of curvature of the abutting surface is the same as that of the inner side surface, so that, in the process of rotating the deflecting member 2, the abutting surface always keeps a good contact state with the inner side surface of the lock tongue body 1, so as to ensure that both ends of the connecting portion 32 are effectively stressed in the process of rotating the deflecting member 2 from the first position to the second position, so that the elastic potential energy of the elastic member is increased, and further, the elastic member 3 can be ensured to be always kept at the first position when the deflecting member 2 is not subjected to the acting force of the webbing 101, thereby facilitating the effect of adjusting the length of the safety belt.

As shown in fig. 2, the first end of the connection section 321 is connected to the locking portion 31, the second end of the connection section 321 is connected to the winding section 322, and the connection section 321 extends obliquely from the second end to the first end in the direction away from the abutting section 323, so that the connection portion 32 is in an open state as a whole, and thus, the locking portion 31 is conveniently extended to the position abutting against the deflecting member 2, and meanwhile, in the process that the deflecting member 2 abuts against the locking portion 31, the connection portion 32 can be effectively deformed, and then the deflecting member 2 is driven to move to the first position through the conversion of elastic potential energy, so that the effect of adjusting the length of the safety belt is conveniently realized.

Be equipped with spacing boss 17 in the spring bolt body 1, the deflection piece 2 supports and presses spacing boss 17 when the primary importance, as shown in fig. 2, the inside wall of spring bolt body 1 is located to spacing boss 17, and spacing boss 17 is located the one side that the deflection piece 2 deviates from locking portion 31, as shown in fig. 6, when the deflection piece 2 is located the primary importance, the side that deviates from locking portion 31 of deflection piece 2 supports and presses spacing boss 17. Therefore, the deflection piece 2 can rotate in a reasonable stroke through the limiting boss 17, the situation that the woven belt 101 cannot drive the deflection piece 2 to rotate due to the fact that the deflection piece 2 rotates in an overlarge amplitude is avoided, and reasonable installation and use of the deflection piece 2 are guaranteed.

In some embodiments, the bolt body 1 has a metal framework 13, at least a partial region of the metal framework 13 is covered with a plastic layer 14, the first stop surface 111 is formed on the plastic layer 14, and the limit boss 17 is disposed on the plastic layer 14. As shown in fig. 6 and 7, the plastic layer 14 is coated outside the metal framework 13, and the metal framework 13 can improve the structural strength and rigidity of the lock tongue body 1, so as to ensure the structural stability of the lock tongue body 1, and thus, when the first stopping surface 111 and the webbing 101 are extruded with each other, the lock tongue body 1 cannot be deformed due to too large stress, so as to ensure the reliability of clamping the webbing 101 by the lock tongue body 1, and improve the safety of using the safety belt. Wherein, the plastic layer 14 has two ribs 15 disposed oppositely, and the deflecting member 2 is rotatably mounted between the two ribs 15.

The plastic layer 14 wraps the metal framework 13, can form a stable protective layer outside the metal framework 13, avoids the direct contact of the mesh belt 101 and the metal framework 13, prevents the metal framework 13 from causing too much abrasion to the structure of the mesh belt 101, improves the safety of the use of the mesh belt 101, and improves the rationality of the structural design of the safety belt lock tongue 100.

As shown in fig. 2, the latch bolt body 1 includes a metal frame 13 and a plastic layer 14 outside the metal frame 13, the plastic layer 14 is adapted to the metal frame 13 in shape, and the metal frame 13 is provided with a locking hole 16 matched with the buckle 104, so that the latch bolt body 1 has a stable overall structure, and cannot cause cutting or damage to other devices, and is simple in structure and reasonable in design.

In some embodiments, the seat belt buckle 100 further comprises: a cover plate 4.

Wherein, as shown in fig. 2, the meshbelt passageway 10 has the end of opening (upper end in fig. 2), the piece 2 that deflects is installed to meshbelt passageway 10 from the end of opening in, apron 4 seals the end of opening, apron 4 can guarantee that the piece 2 that deflects can rotate steadily in meshbelt passageway 10, prevent to deflect the piece 2 and deviate from in meshbelt passageway 10, simultaneously, when needing to change or maintain other spare parts to the piece 2 that deflects and meshbelt passageway 10, can open apron 4, operate, moreover, the steam generator is simple in structure, high durability and convenient installation, and do benefit to later maintenance, change.

Of course, the specific structure of the seatbelt buckle tongue 100 of the present application is not limited thereto, and includes a structure as another embodiment in fig. 9 to 15.

Another embodiment of the seatbelt buckle tongue 100 is described below with reference to fig. 9-15.

As shown in fig. 9 to 15, a seatbelt lock tongue 100 according to an embodiment of the present application includes: the bolt comprises a bolt body 1, a connecting column 6, a deflection piece 2 and an elastic piece 3.

As shown in fig. 10 and 12, the elastic member 3 is fixedly mounted on the bolt body 1 through the connecting column 6 to be connected with the bolt body 1 into a whole, as shown in fig. 12 and 13, the elastic member 3 is sheet-shaped, a first end of the elastic member 3 is connected with the bolt body 1, and a second end of the elastic member 3 extends out of the bolt body 1 and elastically presses the deflecting member 2. As shown in fig. 12 and 13, the upper end of the elastic element 3 extends into the first port 11 of the bolt body 1, the upper end of the elastic element 3 is fixedly connected to the bolt body 1, and the lower end of the elastic element 3 extends out of the bolt body 1 and abuts against the deflecting element 2.

Wherein, the deflection piece 2 is in sliding fit with the tongue body 1, the deflection piece 2 is slidably mounted on the tongue body 1 between the first position and the second position, and the deflection piece 2 is located in the webbing channel 10, and the deflection piece 2 can slide relative to the tongue body 1, as shown in fig. 12, when the deflection piece 2 is located at the first position, the first port 11 of the webbing channel 10 is open, and the webbing 101 can slide freely in the webbing channel 10, so as to adjust the relative position of the webbing 101 and the tongue body 1.

After the deflector 2 slides from the first position to the second position, the first port 11 of the webbing passage 10 is closed to lock the webbing 101, so that the relative position of the webbing 101 and the tongue body 1 is fixed and the occupant can be restrained by the seat belt in a safe area. As shown in fig. 13, the deflector 2 is in the second position, and the deflector 2 and the elastic member 3 close the first port 11, and the webbing 101 is locked between the elastic member 3 and the first stop surface 111, whereby the position of the webbing 101 can be fixed.

As shown in fig. 14, the bolt body 1 has a first sliding surface 141, the deflecting member 2 has a second sliding surface 142, and the first sliding surface 141 and the second sliding surface 142 are slidably engaged, so that the deflecting member 2 is slidably mounted to the bolt body 1 between a first position and a second position. As shown in fig. 14, the curvature radius of the first sliding surface 141 and the curvature radius of the second sliding surface 142 are the same, and when the deflection member 2 slides relative to the tongue body 1, the first sliding surface 141 and the second sliding surface 142 are attached, the deflection member 2 slides between the first position and the second position along the first sliding surface 141, the first sliding surface 141 and the second sliding surface 142 play a role of sliding guide, the sliding resistance of the deflection member 2 is small, so that when a vehicle is impacted, the webbing 101 pushes the deflection member 2 to slide and close the first port 11, and further play a role of safety protection.

In some embodiments, the latch bolt body has two first sliding fit portions, the two first sliding fit portions are disposed opposite to each other, the two ends of the deflecting member are provided with second sliding fit portions, and the first sliding fit portions are slidably connected with the second sliding fit portions, so that the deflecting member 2 is slidably mounted on the latch bolt body between the first position and the second position.

As shown in fig. 11, the lock tongue body 1 has a metal framework 13, at least a partial region of the metal framework 13 is coated with a plastic layer 14, the first stopping surface 111 is formed on the plastic layer 14, as shown in fig. 12 and 13, the plastic layer 14 is coated outside the metal framework 13, the metal framework 13 can improve the structural strength and rigidity of the lock tongue body 1, and ensure the structural stability of the lock tongue body 1, so that when the first stopping surface 111 and the webbing 101 are mutually extruded, the lock tongue body 1 cannot be deformed due to too large stress, and further ensure the reliability of the lock tongue body 1 for clamping the webbing 101, and the safety of the use of the safety belt is improved.

As shown in fig. 15, the first sliding fit portion is a sliding groove 142 disposed on the plastic layer 14, the second sliding fit portion is a sliding pillar 25 disposed on the end of the deflection member 2, that is, the plastic layer 14 has two sliding grooves 142 disposed opposite to each other, the deflection member 2 is installed between the two sliding grooves 142, and the two ends of the deflection member 2 are both provided with the sliding pillars 25, and the sliding pillars 25 extend into the sliding grooves 142, so that when the deflection member 2 slides relative to the lock tongue body 1, the sliding pillars 25 slide along the extending direction of the sliding grooves 142, and the sliding grooves 142 can guide and limit the sliding pillars 25 and the deflection member 2, thereby preventing the deflection member 2 from deviating from the sliding direction, and improving the accuracy and reliability of the use of the seat belt lock tongue 100.

Of course, the sliding column 25 may be disposed on the bolt body 1, and the sliding groove 142 may be disposed on the deflecting member 2, so that the deflecting member 2 and the bolt body 1 may be in sliding fit with each other.

As shown in fig. 9 and 11, the deflecting member 2 has a limiting groove 26, as shown in fig. 11, the lock tongue body 1 has a limiting post 18, the limiting post 18 extends into the limiting groove 26, and the limiting post 18 presses against the inner side wall of the limiting groove 26 close to the elastic member 3 when the deflecting member 2 is located at the first position, so that the deflecting member 2 can be limited to be disengaged from the elastic member 3 by the cooperation of the limiting post 18 and the limiting groove 26, so as to restrain the deflecting member 2 in a safety stroke, so that when a vehicle collides, the webbing 101 can effectively push the deflecting member 2 to drive the elastic member 3 to move, and further the webbing 101 is stably locked, thereby improving the rationality of the structural design of the seat belt lock tongue 100, and ensuring that the seat belt can be safely used.

The application also provides a safety belt.

According to the safety belt of the embodiment of the application, including the safety belt lock tongue 100 of the above embodiment, the first stop surface 111 and the second stop surface 21 are both angled to the direction in which the webbing belt 101 extends and retracts, so that when the webbing belt 101 is locked between the first stop surface 111 and the second stop surface 21, the friction force generated by the deflector 2 and the safety belt lock tongue 100 on the webbing belt 101 is enough to limit the extension of the webbing belt 101. Therefore, when the vehicle encounters an emergency collision, the safety belt can play a role of safety restraint on the driver and passengers, so that the driving safety of the driver and passengers is ensured.

The present application further provides a vehicle.

According to the vehicle of this application, be provided with the safety belt of above-mentioned embodiment, when the vehicle takes place emergency collision, the spring bolt of safety belt can be in time with meshbelt 101 locking to carry out safety constraint effectively to driver and crew, improve the security that driver and crew took a bus, promote the practicality of whole car.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. A seat belt latch bolt (100), comprising:

the bolt comprises a bolt body (1), wherein the bolt body (1) is provided with a braid channel (10), and a first stop surface (111) is arranged at a first port (11) of the braid channel (10);

a deflector (2), the deflector (2) being movably mounted to the bolt body (1) between a first position and a second position by means of a pivot shaft (5);

the elastic piece (3) is mounted on the bolt body (1) and elastically abuts against the deflection piece (2) so that the deflection piece (2) is always kept at the first position, and when the deflection piece (2) is located at the second position, the elastic piece (3) is driven to elastically deform so that the elastic piece (3) and the first stop surface (111) clamp the mesh belt (101).

2. The belt latch according to claim 1, characterized in that the end of the deflector (2) close to the webbing channel (10) is provided with a locking groove (23) opening towards the webbing channel (10), the spring (3) bearing against a wall surface of the locking groove (23).

3. The safety belt tongue as claimed in claim 2, characterized in that both ends of the deflector (2) are provided with lugs (22), the pivot shaft (5) extends through holes (21) in the lugs (22) to pivotally connect the deflector (2) with the tongue body (1), and the locking groove (23) is provided on the side of the lugs (22) near the first port (11).

4. The belt tongue (100) according to claim 1, characterized in that the elastic element (3) has an arcuate surface (33) which is convex towards the first stop surface (111), the arcuate surface (33) and the first stop surface (111) facing each other and the arcuate surface (33) and the first stop surface (111) clamping the webbing (101) when the deflector element (2) is in the second position.

5. The safety belt tongue (100) of claim 1, wherein the elastic member (3) comprises a locking portion (31) and a connecting portion (32) connected to both ends of the locking portion (31), the locking portion (31) presses the deflecting member (2), the connecting portion (32) is rotatably connected to the tongue body (1) so that the deflecting member (2) is rotatably mounted to the tongue body (1) between a first position and a second position, and the locking portion (31) and the first stop surface (111) are configured to clamp the webbing (101).

6. The seatbelt tongue (100) according to claim 5, wherein the tongue body (1) is further provided with a mounting post (152), at least a portion of the connecting portion (32) is wound around the mounting post (152), one end of the connecting portion (32) is connected to the locking portion (31), and the other end of the connecting portion (32) is connected to the tongue body (1).

7. The seatbelt tongue (100) according to claim 6, wherein the connecting portion (32) comprises: the bolt comprises a connecting section (321), a winding section (322) and a pressing section (323) which are sequentially connected, wherein one end, deviating from the winding section (322), of the connecting section (321) is connected with the locking part (31), the winding section (322) is wound on the mounting column (152), and the pressing section (323) presses against the inner wall of the bolt body (1).

8. The safety belt tongue (100) of claim 7, wherein the side of the pressing section (323) facing away from the connecting section (321) has a pressing surface, the pressing surface is in contact with an inner side surface of the tongue body (1), and the radius of curvature of the pressing surface and the inner side surface is the same.

9. The seatbelt buckle tongue (100) according to claim 7, wherein a first end of the connecting section (321) is connected to the locking portion (31), a second end of the connecting section (321) is connected to the winding section (322), and the connecting section (321) extends obliquely from the second end to the first end in a direction away from the pressing section (323).

10. The safety belt tongue (100) of claim 5, wherein the tongue body (1) has a metal frame (13), and at least a partial region of the metal frame (13) is covered with a plastic layer (14), the first stop surface (111) is formed on the plastic layer (14), the plastic layer (14) has two oppositely arranged ribs (15), and the deflector (2) is rotatably mounted between the two ribs (15).

11. The belt buckle (100) of claim 10, characterized in that the plastic layer (14) is provided with a stop boss (17), the deflection element (2) being pressed against the stop boss (17) in the first position.

12. The safety belt tongue (100) according to any one of claims 1 to 11, wherein the deflector (2) is in sliding engagement with the tongue body (1).

13. The safety belt tongue (100) of claim 12, wherein the tongue body (1) has a first sliding surface (141) and the deflector (2) has a second sliding surface (241) cooperating with the first sliding surface (141) such that the deflector (2) is slidably mounted to the tongue body (1) between a first position and a second position.

14. The safety belt tongue (100) of claim 12, wherein the tongue body (1) has two oppositely arranged first sliding fit portions, and the two ends of the deflector (2) are provided with second sliding fit portions, and the first sliding fit portions are slidably connected with the second sliding fit portions so that the deflector (2) is slidably mounted to the tongue body (1) between the first position and the second position.

15. The seatbelt tongue (100) according to claim 14, wherein the tongue body (1) has a metal frame (13), and at least a partial region of the metal frame (13) is covered with a plastic layer (14), the first stop surface (111) is formed on the plastic layer (14), the first sliding fit portion is a sliding groove (142) formed on the plastic layer (14), the second sliding fit portion is a sliding column (25) formed on an end of the deflector (2), and the sliding column (25) extends into the sliding groove (142).

16. The safety belt tongue (100) of claim 12, wherein the deflecting element (2) has a limiting groove (26), the tongue body (1) has a limiting post (18), the limiting post (18) extends into the limiting groove (26), and the limiting post (18) presses against an inner side wall of the limiting groove (26) close to the elastic element (3) when the deflecting element (2) is in the first position.

17. The safety belt tongue (100) of claim 12, wherein the elastic member (3) is sheet-shaped, and a first end of the elastic member (3) is connected to the tongue body (1), and a second end of the elastic member (3) extends out of the tongue body (1) and elastically presses against the deflection member (2).

18. A safety belt, characterized in that it comprises a safety belt tongue (100) according to any one of claims 1-17.

19. A vehicle characterized by being provided with the seat belt of claim 18.