CN115303225B

CN115303225B - Automobile safety belt with secondary protection function

Info

Publication number: CN115303225B
Application number: CN202210997300.6A
Authority: CN
Inventors: 钱欣; 龚云良; 黄杰
Original assignee: Langxi Feima Industrial Fabrics Co ltd
Current assignee: Langxi Feima Industrial Fabrics Co ltd
Priority date: 2022-08-19
Filing date: 2022-08-19
Publication date: 2023-07-21
Anticipated expiration: 2042-08-19
Also published as: CN115303225A

Abstract

The invention provides an automobile safety belt with a secondary protection function, which comprises a safety belt, wherein a winding rod is wound at one end of the safety belt, a fixing sleeve is sleeved at the front end of the winding rod, a torsion beam is fixedly connected to the inner side of the fixing sleeve, a positioning ring is fixedly connected to one end of the torsion beam, the rear part of the positioning ring is fixedly connected with the winding rod, a stacking mechanism formed by stitching single wires of the safety belt is broken under the inertia impact of an occupant, the winding rod and the positioning ring rotate at the moment, the torsion beam starts to twist, the safety belt stretches and expands, the traction effect on the winding rod is reduced in the process of stretching the safety belt, the flexible deformation of the torsion beam starts to recover, the tightening treatment of the safety belt is completed, the sudden tightening of the safety belt is avoided, the greater pressure is caused to the abdomen and the chest of the occupant in an accident vehicle, the secondary protection of the safety belt on the occupant is completed, and the problem of insufficient protection existing equipment is solved.

Description

Automobile safety belt with secondary protection function

Technical Field

The invention mainly relates to the field of automobile safety belts, in particular to an automobile safety belt with a secondary protection function.

Background

The automobile safety belt is used as a passive safety measure of an automobile, is forced equipment of the automobile, and can be used for restraining passengers in the automobile on automobile seats when the automobile is prevented from collision, so that additional damage caused by traffic accidents is reduced, and after the automobile safety belt is triggered, the automobile safety belt acts on the chest and the abdomen of the passengers due to the inertia of the passengers and the influence of the running speed of the automobile before the accidents, and the chest and the abdomen of the passengers are stressed greatly.

The prior patent (publication number: CN 106364449B) discloses an automobile safety belt retractor, which comprises a belt winding drum, an eccentric wheel, a swing arm, a mechanical side cover, a sensitive claw, a sensitive ball and a sensitive seat, wherein the belt winding drum is connected with the eccentric wheel, the inner ring of the swing arm is coated on the eccentric wheel, a limiting structure is arranged on the mechanical side cover, the swing arm penetrates through the limiting structure, a swing arm mechanism is designed, after an occupant wears the safety belt, the vehicle feel is restrained due to the natural rewinding of the retractor after wearing, and when the automobile runs to vibrate, the noise generated by the vehicle feel mechanism is restrained, so that the comfort of the occupant is improved. When emergency locking occurs, the vehicle feel inhibition state is cancelled due to the pulling-out of the safety belt, the safety belt realizes the emergency locking, the safety of passengers is ensured, and the requirements of laws and regulations and the performance of a whole vehicle factory are met. In addition, the number of additional elastic tensioning parts and dies is reduced, so that the number of parts is minimized, and the production management cost is reduced.

The inventor can be blocked immediately by the car seat belt retractor in the process of realizing this scheme at the vehicle accident, can't extend, fixes the passenger in car seat, and the passenger still moves to car seat outside under inertial impact, and car seat belt retractor causes great extrusion force to passenger's chest and belly to the card action of safety belt, leads to the safety belt to cause the injury of different degrees to the passenger.

Disclosure of Invention

Problems to be solved by the invention

The invention provides an automobile safety belt with a secondary protection function, which is used for solving the technical problem of insufficient protection of the prior equipment in the background technology.

Technical proposal

In order to achieve the above purpose, the technical scheme provided by the invention is as follows: the utility model provides an automobile safety belt that possesses secondary protect function, includes the safety belt, the one end winding of safety belt has the winding pole, the front end cover of winding pole has connect fixed cover, the inboard fixedly connected with torsion beam of fixed cover, the one end fixedly connected with holding ring of this torsion beam, the rear portion and the winding pole fixed connection of holding ring, locating pin and gim peg have been cup jointed respectively to the middle part of holding ring, and this gim peg runs through at the front end middle part to the rear end middle part of winding pole.

Further, the rear end of the winding rod is fixedly connected with a baffle, and the diameter of the outer ring of the baffle is the same as that of the outer ring of the fixed sleeve.

The baffle and the fixed sleeve are respectively arranged at two ends of the winding rod, limiting treatment is carried out on the safety belt wound on the outer side of the winding rod, and the structure of the safety belt is conventional design, so that the manufacturing cost is reduced.

Further, the ratchet wheel is fixedly connected to the outer side of the fixing sleeve, and polystyrene particles are filled in the inner side of the fixing sleeve.

Polystyrene particles are filled in the inner side of the fixing sleeve and matched with the torsion beam, and flexible connection is formed between the fixing sleeve and the positioning ring, so that the structure has good impact resistance.

Further, the top joint of fixed cover has sealed lid, sealed lid is transparent PVC injection structure.

The sealing cover and the fixing sleeve provide an anaerobic environment installation environment for the polystyrene particles and the torsion beam, and ensure the working stability of the polystyrene particles and the torsion beam under the severe working condition of the vehicle.

Further, the inner side and the outer side of the torsion beam are respectively composed of a leaf spring and modified rubber, the torsion beam is arranged in pairs relative to the middle of the positioning tube, and a sector deflection beam is fixedly arranged on the outer side of the torsion beam.

The design of the torsion beam and the sector deflection beam plays a role in transmitting torque and flexible deformation between the fixed sleeve and the positioning ring, and the rigidity and deformation response change characteristics of the flexible structure can be changed by adjusting the thickness and the width of the torsion beam and the sector deflection beam.

Further, the sealing ring is fixedly arranged at the joint of the positioning ring and the inner wall of the fixed sleeve, and the rear side of the sealing ring is abutted against the outer side of the winding rod.

The connection mode of the winding rod and the fixing sleeve is sleeve joint, and the gap blocking treatment is carried out on the connection part of the fixing sleeve, the positioning ring and the winding rod through the matching of the positioning ring and the sealing ring.

Further, the circle center of the positioning ring, the circle center of the winding rod and the circle center of the ratchet wheel are all kept on the same axis, and a positioning groove is fixedly formed in the middle of the positioning ring.

The circle centers of the positioning ring, the winding rod and the ratchet wheel are kept on the same axis, winding stability of the safety belt on the outer side of the winding rod is guaranteed, stable rotation of the winding rod is guaranteed, and the positioning groove on the positioning ring is matched with the positioning pin to finish fixing treatment of the positioning ring and the fixing bolt.

Further, the outside of the safety belt is provided with four to six stacked structures with intervals of 4cm-6cm, and the stacked structures are processed by single-line stitching.

The safety belt is provided with a stacking mechanism, wherein the stacking mechanism adopts single-thread stitching treatment, the single-thread stitching is broken under the inertia impact of the passenger, the safety belt stretches and expands in a small amplitude, and the torsion beam is matched to drive the torsion of the winding rod, so that the inertia impact capacity of the passenger is absorbed.

Advantageous effects

Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:

the invention provides an automobile safety belt with a secondary protection function, which is realized by the device,

the stacking mechanism that the single line on the safety belt was sewed up and is made breaks under the inertia impact of passenger, and the winding pole rotates with the holding ring this moment, and torsion beam begins to twist reverse, and the stretching expansion takes place for the safety belt, and the in-process that the safety belt was stretched reduces the pulling effect of winding pole, and the flexible deformation of torsion beam begins to resume, accomplishes the tightening process of safety belt, avoids the sudden tightening of safety belt, causes great pressure to passenger's belly and chest in the accident vehicle, accomplishes the secondary protection of safety belt to passenger.

None of the parts of the device are the same as or can be implemented using prior art.

Drawings

FIG. 1 is a perspective view of the novel structure of the present invention;

FIG. 2 is a perspective view of the novel winding bar structure of the present invention;

FIG. 3 is a front view of the novel retaining sleeve structure of the present invention;

FIG. 4 is a perspective view of the novel seal cap structure of the present invention;

FIG. 5 is a perspective view of the novel twist beam structure of the present invention;

fig. 6 is a perspective view of the novel seat belt structure of the present invention.

Reference numerals

1-a safety belt;

2-winding the rod; 21-a baffle;

3-fixing the sleeve; 31-ratchet wheel; 32-polystyrene particles;

4-torsion beams;

5-positioning rings; 51-a sealing ring;

6-locating pins;

7-fixing bolts;

8-sealing cover.

Detailed Description

In order that the invention may be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, in which, however, the invention may be embodied in many different forms and are not limited to the embodiments described herein, but are instead provided for the purpose of providing a more thorough and complete disclosure of the invention.

It will be understood that when an element is referred to as being "mounted" on another element, it can be directly on the other element or intervening elements may also be present; when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present; the terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention; the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Examples

Referring to fig. 1 to 6, an automobile safety belt with a secondary protection function comprises a safety belt 1, wherein a winding rod 2 is wound at one end of the safety belt 1, a fixing sleeve 3 is sleeved at the front end of the winding rod 2, a torsion beam 4 is fixedly connected to the inner side of the fixing sleeve 3, a positioning ring 5 is fixedly connected to one end of the torsion beam 4, the rear part of the positioning ring 5 is fixedly connected with the winding rod 2, a positioning pin 6 and a fixing bolt 7 are respectively sleeved at the middle part of the positioning ring 5, and the fixing bolt 7 penetrates through the middle part of the front end of the winding rod 2 to the middle part of the rear end.

In this embodiment, as shown in fig. 1 and 2, a baffle plate 21 is fixedly connected to the rear end of the winding rod 2, and the diameter of the outer ring of the baffle plate 21 is the same as that of the outer ring of the fixing sleeve 3.

The winding rod 2, the baffle 21 and the fixed sleeve 3 are matched, the simple structure formed is used for winding the safety belt 1, the structure can be assembled in an existing product automobile safety belt retractor through the fixing bolt 7, the ratchet wheel 31 outside the fixed sleeve 3 is matched with a pawl in the automobile safety belt retractor, the whole structure is reasonable in design, and the structure can be combined with the existing product to reduce the use, the manufacture and the use cost.

In this embodiment, as shown in fig. 1 and 3, a ratchet 31 is fixedly connected to the outside of the fixing sleeve 3, and polystyrene particles 32 are filled in the inside of the fixing sleeve 3.

In the process of flexibly deforming the torsion beam 4 by torsion in the fixed sleeve 3 and the positioning ring 5, the polystyrene particles 32 deform under the extrusion of the torsion beam 4, and the torsion beam 4 is elastically supported and protected.

In this embodiment, as shown in fig. 1, 3 and 4, the top end of the fixing sleeve 3 is clamped with a sealing cover 8, and the sealing cover 8 is of a transparent PVC injection structure.

Polystyrene particles 32 are filled in the fixed sleeve 3, and an anaerobic environment is manufactured in the fixed sleeve 3 by matching with the sealing cover 8, so that the oxidation speed of the torsion beam 4 is reduced, and the problem that the torsion beam 4 can not stably twist due to rapid aging under severe working conditions of a vehicle is avoided.

In this embodiment, as shown in fig. 1, 3 and 5, the inner side and the outer side of the torsion beam 4 are respectively composed of a leaf spring and modified rubber, the torsion beam 4 is arranged in pairs about the middle of the positioning tube, and a fan-shaped deflection beam is fixedly arranged on the outer side of the torsion beam 4.

The torsion beam 4 is matched with the sector deflection beam, a torsion angle of +/-15 degrees is arranged in the fixed sleeve 3 and the positioning ring 5, and meanwhile, the torque transmission between the fixed sleeve 3 and the positioning ring 5 is completed through the flexible structure of the torsion beam 4.

In this embodiment, as shown in fig. 1, 3 and 5, a sealing ring 51 is fixedly arranged at the connection part of the positioning ring 5 and the inner wall of the fixing sleeve 3, and the rear side of the sealing ring 51 is abutted against the outer side of the winding rod 2.

The winding rod 2 is connected with the fixed sleeve 3 through a flexible connection structure formed by the positioning ring 5 and the torsion beam 4, the torsion beam 4 is ensured to be always deflected in the process, the circle centers of the positioning ring 5, the winding rod 2 and the fixed sleeve 3 are on the same axis, and the sealing ring 51 is used to prevent the polystyrene particles 32 from leaking from the assembly gap between the fixed sleeve 3 and the winding rod 2.

In this embodiment, as shown in fig. 1, 3 and 5, the center of the positioning ring 5, the center of the winding rod 2 and the center of the ratchet wheel 31 are all kept on the same axis, and a positioning groove is fixedly formed in the middle of the positioning ring 5.

The ratchet wheel 31 cooperates with a pawl in the automobile safety belt retractor, and in the rotating process, the positioning ring 5, the winding rod 2 and the circle center of the ratchet wheel 31 are positioned on the same axis, so that the stable rotation of the winding rod 2 is ensured.

In this embodiment, as shown in fig. 2 and 6, the outside of the seat belt 1 is provided with four to six stacked structures with an interval of 4cm to 6cm, which are treated with single thread stitching.

The stacking mechanism that single line on the safety belt 1 was sewed up and is made breaks under the inertia impact of passenger, winding pole 2 and holding ring 5 rotate this moment, torsion beam 4 begins to twist reverse, the safety belt 1 takes place to stretch and expand, passenger continues to dash out to the car seat outside under inertial action, the in-process of the tensile of safety belt 1 is to the pulling effect of winding pole 2 reduces, the flexible deformation of torsion beam 4 begins to resume, drive winding pole 2 through holding ring 5 and rotate, accomplish the tightening process of safety belt 1, avoid the vehicle to take place the sudden tightening of safety belt 1 when accident such as striking, cause great pressure to passenger's belly and chest.

In the present embodiment of the present invention, in the present embodiment,

the device is assembled in an automobile safety belt retractor through the fixing bolt 7, wherein the ratchet wheel 31 and a pawl in the automobile safety belt retractor work in a matched mode, the safety belt 1 is wound on the outer side of the winding rod 2, the baffle 21 is matched with the fixing sleeve 3, and limiting winding treatment is carried out on the safety belt 1 wound on the outer side of the winding rod 2.

The winding rod 2 is connected with the fixed sleeve 3 through a flexible structure formed by the positioning ring 5 and the torsion beam 4, the positioning ring 5 is fixedly connected with the fixed bolt 7 through the positioning pin 6, and the winding rod 2 drives the fixed bolt 7 to rotate in the automobile safety belt retractor through the positioning ring 5.

When the passenger pulls the safety belt 1 to use, the winding rod 2 drives the fixed sleeve 3 and the ratchet wheel 31 to rotate in the automobile safety belt retractor through the locating ring 5 and the torsion beam 4, at the moment, the torsion beam 4 is twisted, the torsion angle of the torsion beam is in direct proportion to the pulling speed of a user on the safety belt 1, when the user finishes the fixed use of the safety belt 1 in the automobile, the flexible deformation of the torsion beam 4 is recovered, the tightening treatment of the safety belt 1 is finished, and the safety belt 1 is ensured to be attached to the abdomen and the chest of the user.

The foregoing examples merely illustrate certain embodiments of the invention and are described in more detail and are not to be construed as limiting the scope of the invention; it should be noted that it is possible for a person skilled in the art to make several variants and modifications without departing from the concept of the invention, all of which fall within the scope of protection of the invention; accordingly, the scope of protection of the present invention is to be determined by the appended claims.

Claims

1. An automobile safety belt with a secondary protection function is characterized in that: the safety belt comprises a safety belt (1), wherein a winding rod (2) is wound at one end of the safety belt (1), a fixing sleeve (3) is sleeved at the front end of the winding rod (2), a torsion beam (4) is fixedly connected to the inner side of the fixing sleeve (3), a positioning ring (5) is fixedly connected to one end of the torsion beam (4), the rear part of the positioning ring (5) is fixedly connected with the winding rod (2), a positioning pin (6) and a fixing bolt (7) are respectively sleeved at the middle part of the positioning ring (5), and the fixing bolt (7) penetrates through the middle part of the front end of the winding rod (2) to the middle part of the rear end;

the inner side and the outer side of the torsion beam (4) are respectively composed of a leaf spring and modified rubber, the torsion beam (4) is arranged in pairs relative to the middle of the positioning pipe, and a sector deflection beam is fixedly arranged on the outer side of the torsion beam (4).

2. The automobile safety belt with a secondary protection function according to claim 1, wherein: the rear end of the winding rod (2) is fixedly connected with a baffle plate (21), and the diameter of the outer ring of the baffle plate (21) is the same as that of the outer ring of the fixed sleeve (3).

3. The automobile safety belt with a secondary protection function according to claim 1, wherein: the outer side of the fixed sleeve (3) is fixedly connected with a ratchet wheel (31), and polystyrene particles (32) are filled in the inner side of the fixed sleeve (3).

4. The automobile safety belt with a secondary protection function according to claim 1, wherein: the top of fixed cover (3) joint has sealed lid (8), sealed lid (8) are transparent PVC injection structure.

5. The automobile safety belt with a secondary protection function according to claim 1, wherein: the inner wall junction of holding ring (5) and fixed cover (3) has set firmly sealing ring (51), and the rear side of this sealing ring (51) is contradicted in the outside of winding pole (2).

6. The automobile safety belt with a secondary protection function according to claim 1, wherein: the center of the positioning ring (5), the center of the winding rod (2) and the center of the ratchet wheel (31) are all kept on the same axis, and a positioning groove is fixedly formed in the middle of the positioning ring (5).

7. The automobile safety belt with a secondary protection function according to claim 1, wherein: the outside of the safety belt (1) is provided with four to six stacked structures with intervals of 4cm-6cm, and the stacked structures are processed by single-thread stitching.