CN207594901U - A kind of preload limit type automobile safety belt retractor - Google Patents
A kind of preload limit type automobile safety belt retractor Download PDFInfo
- Publication number
- CN207594901U CN207594901U CN201721696489.6U CN201721696489U CN207594901U CN 207594901 U CN207594901 U CN 207594901U CN 201721696489 U CN201721696489 U CN 201721696489U CN 207594901 U CN207594901 U CN 207594901U
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- mandrel
- safety belt
- limiting section
- component
- main body
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Abstract
The utility model discloses a kind of preload limit type automobile safety belt retractors, including wind spring component, mandrel component, pre-tighten device assembly, frame assembly and mechanical side cover, the mandrel component is placed in the inside of the frame assembly, the wind spring component is separately mounted to two outsides of the frame assembly with the mechanical side cover, the inside for pre-tightening device assembly and being placed in the frame assembly, when emergency occurs for vehicle, the mandrel component is pre-tightened, safety belt is pulled back.The beneficial effects of the utility model are：The preload device assembly is placed in the inside of the frame assembly, when encountering emergency, pre-tightens and drives the mandrel component; safety belt is pulled back, it is effective to improve the stability pre-tightened, while structure is compacter; cover board protection can be utilized to pre-tighten device assembly, also improve the intensity of frame assembly.
Description
Technical field
The utility model is related to auto-safety mechanism design fields, and in particular to a kind of preload limit type car belt volume
Receive device.
Background technology
Coiler refers to the coiler of lock in emergency function, it is the core component of car belt, the function packet of realization
It includes spring to recycle, inclination of vehicle senses, vehicle suddenly accelerates anxious sense of slowing down is answered, belt acceleration senses etc..Safety belt pre-tightens at present
Device is all disposed within greatly the outside of frame assembly, and lockable mechanism is needed in addition to be realized using the other parts other than frame, is unfavorable for
The integrally-built simplified arrangement of coiler and function-stable.
Invention content
The purpose of this utility model is that solve the above-mentioned problems and provides a kind of preload limit type car belt
Preload device assembly is placed in the inside of frame assembly by coiler, the coiler of the utility model, and the shaft end of mandrel component is by frame
Support when pre-tightening, can pre-tighten turbine position, can improve the stability of preload, meanwhile, do not need to other frame
Lockable mechanism is supported, is conducive to the simplification of structure.
The utility model is achieved through the following technical solutions above-mentioned purpose：
A kind of preload limit type automobile safety belt retractor, including wind spring component, mandrel component, pre-tightens device assembly, frame
Assembly and mechanical side cover, the mandrel component are placed in the inside of the frame assembly, the wind spring component and the mechanical side
Lid is separately mounted to two outsides of the frame assembly, the inside for pre-tightening device assembly and being placed in the frame assembly, in vehicle
When emergency occurs, the mandrel component is pre-tightened, safety belt is pulled back.
Further, the preload device assembly includes cover board and guide pipe, and the guide pipe is along the cover board inside cutting
Line direction is detachably installed, and has glue stick to be rotated across the guide pipe along the cover board inside circumference direction, can be driven
The mandrel component；
The side of the cover board is additionally provided with circular protrusions, can be contacted in preload with mandrel component.
Further, the mandrel component includes mandrel main body, torque arm, two level limiter steel wire ring and turbine, the torsion
Power bar and the mandrel main body nested encryptions, the both ends of the torque arm are integrally formed with spline, and the torque arm extends to
Two outside of mandrel main body；
Described torque arm one end is connect by spline with the wind spring component, and the torque arm other end passes through spline and institute
Turbine connection is stated, the two level limiter steel wire ring is mounted on the side of the mandrel main body, can be to mandrel main body two level limiter.
Further, the mandrel body side end face is circumferentially equipped with the first limiting section, the second limiting section and the successively
Three limiting sections, there are two first limiting section, second limiting section and the third limiting section are all provided with, and two described
One limiting section is symmetrical arranged on the circumference of mandrel main body side end face, and two second limiting sections are in mandrel main body side end face circumference
Upper to be symmetrical arranged, two third limiting sections are symmetrical arranged on the circumference of mandrel main body side end face；The two level limiter steel wire
Ring is unidirectionally wound successively along one of which third limiting section lateral surface, the second limiting section medial surface, the first limiting section lateral surface
Into, and limited across the groove on the spline along another group of the first limiting section lateral surface, the second limiting section medial surface, third
Position portion lateral surface winds and stretches out；The two level limiter steel wire ring is fixed by fixation with steel wire ring.
Further, the turbine include turbo main body, the shaft shoulder, axle sleeve and spindle nose, the turbo main body, the shaft shoulder,
The axle sleeve and the spindle nose are integrally machined molding, and the axle sleeve is nested with the spline, the shaft shoulder inner ring by bushing with
The mandrel body end is nested, and the shaft shoulder outer ring is contacted with the circular protrusions, can limit the axis of the mandrel component
The heart deviates.
Further, the turbine is spherical turbine or ratchet-shaped turbine.
Further, sensor module and lockable mechanism are equipped on the inside of the mechanical side cover, the lockable mechanism includes lock
Only disk, ratchet, pawl and actuator, the actuator are connect by connecting rod with the pawl；
The ratchet outer ring is equipped with latch, and the ratchet inner ring extends to outside and is equipped with outer ratchet, the lock plate and institute
The outer end face for stating frame assembly is fixedly connected, and the inner ring of the lock plate is equipped with interior ratchet, and the interior ratchet and the outer spine
Tooth engagement.
Further, the shaft end of the mandrel component and the inner ring of the ratchet are interference fitted.
Further, the sensor module includes vehicle propagated sensation sensor, band propagated sensation sensor, gradient sensor.
Further, the wind spring component includes wind spring end cap and wind spring, and the wind spring is located in the wind spring end cap, and
The wind spring is connect with the shaft end of the mandrel component.
Using the above structure, in assembling, the preload device assembly is assembled with the mandrel component, wherein the turbine
The inside of the cover board is stretched into, the guide pipe is fixed on the cover board, and there are gaps between the guide pipe and the turbine；So
The preload device assembly is integrally installed into the mandrel component in the frame assembly afterwards, then pacifies the lockable mechanism
Mounted in the spindle nose of the mandrel component, the wind spring component is separately mounted to the two of the frame assembly with the mechanical side cover
Side；
Emergency occurs in vehicle, the triggering of gas initiator drives the glue stick to be slided along the guide pipe, first
First, the actuator is driven since the glue stick squeezes, the actuator drives the pawl to swing by the effect of connecting rod, card
Latch is stated in residence, so as to which the ratchet stops operating, simultaneously because the interior ratchet of the outer ratchet of the ratchet and the lock plate
Engagement, locking frame assembly make mandrel main body stop operating；The glue stick under the effect of the pressure, due to guide pipe guiding make
With along the circular-rotation on the inside of the cover board, at this point, glue stick deformation coordinates with turbine, driving turbine revolution rolls up safety belt
It receives, people is in case of emergency retracted into seat, avoids the effect due to inertia, people comes to harm.
To sum up, the beneficial effects of the utility model are：The preload device assembly is placed in the inside of the frame assembly,
When encountering emergency, pre-tighten and drive the mandrel component, safety belt is pulled back, it is effective to improve the stability pre-tightened, together
When structure it is compacter, cover board protection can be utilized to pre-tighten device assembly, also improve the intensity of frame assembly.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the explosive view of the utility model；
Fig. 2 is the assembled view of the utility model；
Fig. 3 is the utility model mandrel component explosive view；
Fig. 4 is the utility model torque arm and turbine assembly structure figure；
Fig. 5 is the utility model preloader assembly assumption diagram；
Device assembly and frame assembly assembling assumption diagram are pre-tightened when Fig. 6 is the utility model Pre strained state；
Fig. 7 is the utility model lockable mechanism structure chart；
Fig. 8 is the utility model two level limiter steel wire ring and mandrel main body end face assembly structure figure；
Fig. 9 is the utility model turbine stereochemical structure view;
Figure 10 is the utility model other direction turbine stereochemical structure view.
The reference numerals are as follows：
1st, wind spring component；2nd, mandrel component；201st, mandrel main body；2011st, the first limiting section；2012nd, the second limiting section；
2013rd, third limiting section；202nd, torque arm；203rd, spline；204th, fixation with steel wire ring；205th, two level limiter steel wire ring；206th, axis
Lining；207th, turbine；2071st, turbo main body；2072nd, axle sleeve；2073rd, the shaft shoulder；2074th, spindle nose；3rd, device assembly is pre-tightened；301st, it is oriented to
Ring；302nd, cover board；303rd, circular protrusions；4th, frame assembly；5th, mechanical side cover；501st, ratchet；502nd, latch；503rd, outer ratchet；
504th, pawl；505th, connecting rod；506th, actuator；507th, lock plate；508th, interior ratchet；6th, glue stick.
Specific embodiment
It, below will be to the technology of the utility model to make the purpose of this utility model, technical solution and advantage clearer
Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not before creative work is made
Obtained all other embodiment is put, belongs to the range that the utility model is protected.
Referring to shown in Fig. 1-Fig. 2, the utility model provides a kind of preload limit type automobile safety belt retractor, including volume
Spring component 1, mandrel component 2, preload device assembly 3, frame assembly 4 and mechanical side cover 5, the mandrel component 2 are placed in the frame
The inside of frame assembly 4, the wind spring component 1 are separately mounted to two outsides of the frame assembly 4, institute with the mechanical side cover 5
Stating wind spring component 1 can make the safety belt being wound on mandrel component 2 ensure that safety belt againsts human body, the preload always toward recycling
Device assembly 3 is placed in the inside of the frame assembly 4, which makes the stress of mandrel component 2 by middle position when pre-tightening, can be with
It is effective to improve stability, while the protection of cover board 302 may be used and pre-tighten device assembly 3, increase the compactedness of coiler, improve whole
The intensity of body structure when emergency occurs for vehicle, can pre-tighten the mandrel component 2, safety belt is pulled back.
Referring to shown in Fig. 5-Fig. 6, further, the preload device assembly 3 includes cover board 302 and guide pipe, the guiding
Pipe is detachably installed along the 302 inside tangential direction of cover board, and the guide pipe is fixed by screws in the cover board 302
On, glue stick 6 can be oriented to, glue stick 6 is rotated across the guide pipe along the 302 inside circumference direction of cover board, energy
Enough drive the mandrel component 2；The cover board 302 covers internal part, has the function of protection；
The side of the cover board 302 is additionally provided with circular protrusions 303, can be contacted in preload with mandrel component 2；Due to glue
The crimp of stick 6 promotes circular protrusions 303 to be contacted with 2073 outer ring of the shaft shoulder of the turbine 207, can effectively improve mandrel
The stability of concentricity.
Referring to shown in Fig. 3-Fig. 4, in order to improve the two level limiter ability of mandrel component 2, it is made to run when rotated more
Steadily, further, the mandrel component 2 includes mandrel main body 201, torque arm 202, two level limiter steel wire ring 205 and turbine
207, the two level limiter steel wire ring 205 provides two level limiter, the torsion by the frictional force between the deformation of steel wire and mandrel
Power bar 202 and 201 nested encryptions of mandrel main body, the both ends of the torque arm 202 are and described integrally formed with spline 203
Torque arm 202 extends to described 201 liang of outsides of mandrel main body, facilitates the assembling of torque arm 202 and turbine 207；
Described 202 one end of torque arm is connect by spline 203 with the wind spring component 1, and 202 other end of torque arm leads to
Spline 203 to be crossed to connect with the turbine 207, the two level limiter steel wire ring 205 is mounted on the side of the mandrel main body 201,
It can be to 201 two level limiter of mandrel main body.
Shown in Figure 8, further, 201 1 side end face of mandrel main body is circumferentially equipped with the first limiting section successively
2011st, the second limiting section 2012 and third limiting section 2013, first limiting section 2011, second limiting section 2012 and institute
It states there are two third limiting section 2013 is all provided with, and two first limiting sections 2011 are on 201 side end face circumference of mandrel main body
It is symmetrical arranged, two second limiting sections 2012 are symmetrical arranged on 201 side end face circumference of mandrel main body, two thirds
Limiting section 2013 is symmetrical arranged on 201 side end face circumference of mandrel main body；The two level limiter steel wire ring 205 is successively along wherein
One group of 2013 lateral surface of third limiting section, 2012 medial surface of the second limiting section, 2011 lateral surface of the first limiting section are unidirectionally wound into
Enter, and across the groove on the spline 203 along another group of 2011 lateral surface of the first limiting section, 2012 inside of the second limiting section
Face, 2013 lateral surface of third limiting section wind and stretch out；The two level limiter steel wire ring 205 is fixed by fixation with steel wire ring 204,
The fixation with steel wire ring 204 coordinates with first limiting section 2011, second limiting section 2012, the third limiting section 2013
Installation, two level limiter steel wire ring 205 is fixed, it is more steady to be conducive to rotating operation.
Referring to shown in Fig. 9-Figure 10, further, the turbine 207 includes turbo main body 2071, the shaft shoulder 2073, axle sleeve
2072 and spindle nose 2074, the turbo main body 2071, the shaft shoulder 2073, the axle sleeve 2072 and 2074 one of the spindle nose plus
Work is molded, and facilitates processing, and the axle sleeve 2072 is nested with the spline 203, and connective stability is high, and 2073 inner ring of the shaft shoulder leads to
It is nested with 201 end of mandrel main body to cross bushing 206,2073 outer ring of the shaft shoulder is contacted with the circular protrusions 303, can
The axle center offset of the mandrel component 2 is limited, the stability of mandrel concentricity can be effectively improved.
Further, the turbine 207 is spherical turbine 207 or ratchet-shaped turbine 207.
Referring to Fig. 7, further, 5 inside of machinery side cover is equipped with sensor module（It is not drawn into figure）With locking machine
Structure, the sensor module can sense the emergency of interior generation, trigger gas-forming agent in time, the lockable mechanism can
With quick locking coiler, can to carrying out the pressure of baffle safety band, the lockable mechanism include lock plate 507, ratchet 501,
Pawl 504 and actuator 506, the actuator 506 are connect by connecting rod 505 with the pawl 504；
501 outer ring of ratchet is equipped with latch 502, and the latch 502 coordinates with the pawl 504 by 501 locking of ratchet,
501 inner ring of ratchet extends to outside and is equipped with outer ratchet 503, and the lock plate 507 and the outer end face of the frame assembly 4 are consolidated
Fixed connection, the inner ring of the lock plate 507 are equipped with interior ratchet 508, and the interior ratchet 508 is engaged with the outer ratchet 503, can
With by 4 locking of frame assembly.
Further, the shaft end of the mandrel component 2 and the inner ring of the ratchet 501 are interference fitted；The sensor group
Part includes vehicle propagated sensation sensor, band propagated sensation sensor, gradient sensor；The wind spring component 1 includes wind spring end cap and wind spring, institute
It states wind spring to be located in the wind spring end cap, and the wind spring is connect with the shaft end of the mandrel component 2.
Using the above structure, in assembling, the preload device assembly 3 is assembled with the mandrel component 2, wherein the whirlpool
Wheel 207 stretches into the inside of the cover board 302, and the guide pipe is fixed on cover board 302, the guide pipe and the turbine 207
Between there are gaps；Then the preload device assembly 3 is integrally installed into the mandrel component 2 in the frame assembly 4, so
The lockable mechanism is mounted on to the spindle nose 2074 of the mandrel component 2 afterwards, the wind spring component 1 divides with the mechanical side cover 5
Not An Zhuan the frame assembly 4 both sides；
Emergency occurs in vehicle, the triggering of gas initiator drives the glue stick 6 to be slided along the guide pipe, first
First, the actuator 506 is driven since the glue stick 6 squeezes, the actuator 506 passes through described in the effect drive of connecting rod 505
Pawl 504 is swung, and blocks the latch 502, so as to which the ratchet 501 stops operating, simultaneously because the outer spine of the ratchet 501
Tooth 503 is engaged with the interior ratchet 508 of the lock plate 507, and locking frame assembly 4 makes mandrel main body 201 stop operating；The glue
Stick 6 under the effect of the pressure, due to the guiding role of guide pipe, along the circular-rotation of 302 inside of cover board, at this point, glue
The deformation of stick 6 coordinates with turbine 207, and driving turbine 207 turns round, and furls safety belt, people in case of emergency is retracted seat, keep away
Exempt from the effect due to inertia, people comes to harm.
The above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, in the technical scope that any one skilled in the art discloses in the utility model, variation can be readily occurred in
Or replace, it should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with the power
Subject to the protection domain of profit requirement.
Claims (10)
1. a kind of preload limit type automobile safety belt retractor, total including wind spring component, mandrel component, preload device assembly, frame
Into and mechanical side cover, the mandrel component be placed in the inside of the frame assembly, the wind spring component and the mechanical side cover
It is separately mounted to two outsides of the frame assembly, it is characterised in that：The preload device assembly is placed in the interior of the frame assembly
Side when emergency occurs for vehicle, pre-tightens the mandrel component, safety belt is pulled back.
2. a kind of preload limit type automobile safety belt retractor according to claim 1, it is characterised in that：The preloader
Component includes cover board and guide pipe, and the guide pipe is detachably installed, and have glue stick to wear along tangential direction on the inside of the cover board
It crosses the guide pipe to rotate along the cover board inside circumference direction, the mandrel component can be driven；
The side of the cover board is additionally provided with circular protrusions, can be contacted in preload with mandrel component.
3. a kind of preload limit type automobile safety belt retractor according to claim 2, it is characterised in that：The mandrel group
Part includes mandrel main body, torque arm, two level limiter steel wire ring and turbine, the torque arm and the mandrel main body nested encryptions,
The both ends of the torque arm are integrally formed with spline, and the torque arm extends to two outside of mandrel main body；
Described torque arm one end is connect by spline with the wind spring component, and the torque arm other end passes through spline and the whirlpool
Wheel connection, the two level limiter steel wire ring are mounted on the side of the mandrel main body, can be to mandrel main body two level limiter.
4. a kind of preload limit type automobile safety belt retractor according to claim 3, it is characterised in that：The mandrel master
One side end face of body is circumferentially equipped with the first limiting section, the second limiting section and third limiting section successively, first limiting section, described
There are two second limiting section and the third limiting section are all provided with, and two first limiting sections are in mandrel main body side end face circumference
Upper to be symmetrical arranged, two second limiting sections are symmetrical arranged on the circumference of mandrel main body side end face, two third limitings
Portion is symmetrical arranged on the circumference of mandrel main body side end face；The two level limiter steel wire ring is successively along one of which third limiting section
Lateral surface, the second limiting section medial surface, the first limiting section lateral surface unidirectionally wind entrance, and pass through the groove edge on the spline
Another group of the first limiting section lateral surface, the second limiting section medial surface, third limiting section lateral surface to wind and stretch out；The two level
Limiter steel wire ring is fixed by fixation with steel wire ring.
5. a kind of preload limit type automobile safety belt retractor according to claim 3 or 4, it is characterised in that：The whirlpool
Wheel includes turbo main body, the shaft shoulder, axle sleeve and spindle nose, and the turbo main body, the shaft shoulder, the axle sleeve and the spindle nose integrally add
Work is molded, and the axle sleeve is nested with the spline, and the shaft shoulder inner ring is nested with the mandrel body end by bushing, described
Shaft shoulder outer ring is contacted with the circular protrusions, can limit the axle center offset of the mandrel component.
6. a kind of preload limit type automobile safety belt retractor according to claim 5, it is characterised in that：The turbine is
Spherical turbine or ratchet-shaped turbine.
7. a kind of preload limit type automobile safety belt retractor according to claim 1, it is characterised in that：The mechanical side
Lid inside is equipped with sensor module and lockable mechanism, and the lockable mechanism includes lock plate, ratchet, pawl and actuator, described
Actuator is connect by connecting rod with the pawl；
The ratchet outer ring is equipped with latch, and the ratchet inner ring extends to outside and is equipped with outer ratchet, the lock plate and the frame
The outer end face of frame assembly is fixedly connected, and the inner ring of the lock plate is equipped with interior ratchet, and the interior ratchet is nibbled with the outer ratchet
It closes.
8. a kind of preload limit type automobile safety belt retractor according to claim 7, it is characterised in that：The mandrel group
The shaft end of part and the inner ring of the ratchet are interference fitted.
9. a kind of preload limit type automobile safety belt retractor according to claim 7 or 8, it is characterised in that：The biography
Sensor component includes vehicle propagated sensation sensor, band propagated sensation sensor, gradient sensor.
10. a kind of preload limit type automobile safety belt retractor according to claim 1, it is characterised in that：The wind spring
Component includes wind spring end cap and wind spring, and the wind spring is located in the wind spring end cap, and the axis of the wind spring and the mandrel component
End connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721696489.6U CN207594901U (en) | 2017-12-08 | 2017-12-08 | A kind of preload limit type automobile safety belt retractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721696489.6U CN207594901U (en) | 2017-12-08 | 2017-12-08 | A kind of preload limit type automobile safety belt retractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207594901U true CN207594901U (en) | 2018-07-10 |
Family
ID=62764587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721696489.6U Active CN207594901U (en) | 2017-12-08 | 2017-12-08 | A kind of preload limit type automobile safety belt retractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207594901U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107757550A (en) * | 2017-12-08 | 2018-03-06 | 沈阳金杯锦恒汽车安全系统有限公司 | A kind of pretension limit type automobile safety belt retractor |
| CN111674356A (en) * | 2020-06-23 | 2020-09-18 | 浙江松原汽车安全系统股份有限公司 | Pretension mechanism and coiler |
| CN111674356B (en) * | 2020-06-23 | 2024-05-14 | 浙江松原汽车安全系统股份有限公司 | Pretension mechanism and retractor |
-
2017
- 2017-12-08 CN CN201721696489.6U patent/CN207594901U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107757550A (en) * | 2017-12-08 | 2018-03-06 | 沈阳金杯锦恒汽车安全系统有限公司 | A kind of pretension limit type automobile safety belt retractor |
| CN107757550B (en) * | 2017-12-08 | 2024-02-23 | 沈阳金杯锦恒汽车安全系统有限公司 | Pretension force-limiting type automobile safety belt retractor |
| CN111674356A (en) * | 2020-06-23 | 2020-09-18 | 浙江松原汽车安全系统股份有限公司 | Pretension mechanism and coiler |
| CN111674356B (en) * | 2020-06-23 | 2024-05-14 | 浙江松原汽车安全系统股份有限公司 | Pretension mechanism and retractor |
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