CN209534988U - A kind of automobile safety belt retractor equipped with anti-locking device - Google Patents

Abstract

The utility model discloses a kind of automobile safety belt retractors equipped with anti-locking device, including coiler ontology and the anti-locking device of vehicle sense；Coiler ontology includes fixed shell, mandrel, latch assembly and vehicle sense component；Vehicle sense component includes vehicle sense arm, and vehicle sense arm is equipped with vehicle sense ratchet, and latch assembly is equipped with outer ratchet, and vehicle sense ratchet is adapted to outer ratchet；The anti-locking device of vehicle sense includes vehicle sense driving gear, vehicle sense driven gear and vehicle sense spreadet spreadet wheel；Vehicle sense spreadet spreadet wheel is equipped with vehicle sense arc convex, and fixed shell is equipped with the anti-lock notch of vehicle sense；When vehicle sense arc convex is overlapped with the anti-lock notch of vehicle sense, vehicle sense arm is lifted, and vehicle sense arc convex is contacted with vehicle sense ratchet, has gap between vehicle sense ratchet and outer ratchet.The utility model provides a kind of automobile safety belt retractor equipped with anti-locking device, can avoid the latch functions of safety belt by false triggering under normal operating condition, while latch functions can be normally-open in unexpected situations, guarantees occupant safety.

Description

A kind of automobile safety belt retractor equipped with anti-locking device

Technical field

The utility model relates to car belt technical fields, more particularly, to a kind of automotive safety equipped with anti-locking device Webbing retractor.

Background technique

Latch functions on automobile safety belt retractor can guarantee that vehicle encounters safety belt under fortuitous event and is not drawn out, To protect occupant.But latch functions can cause safety belt in normal use process by false triggering in many cases It is locked up, causes safety belt that can not pull out.When being in slope such as vehicle, the latch functions of safety belt can be triggered, and lead to occupant It is used after getting on the bus on the slope without pull-out safety belt；The seat belt retractor of back seat is mounted on by back, works as back seat After toppling over certain angle, the latch functions of safety belt can be triggered, and occupant is caused to use without safety belt is pulled out；Occupant sits on the seat Afterwards, if occupant pulls out the excessive velocities (greater than the upper limit value of coiler locking setting) of ribbon, the locking of safety belt is also resulted in Function triggering, safety belt are used without safety belt is pulled out.Above situation is all the normal operating condition of safety belt, but safety belt is rolled up The latch functions of device are received by false triggering, causes safety belt not to be available, is inconvenient.To solve the above-mentioned problems, it needs to design A kind of automobile safety belt retractor equipped with anti-locking device can avoid the latch functions quilt of safety belt under normal operating condition False triggering, in unexpected situations, latch functions can be normally-open, guarantee occupant safety.

Chinese patent application publication number CN101497333B, publication date is on 07 04th, 2012, entitled " to be used for seat The locking unit of belt retractor " discloses a kind of locking unit, the tape spool being wrapped about for seat harness to be arranged in An end seat belt retractor.When seat harness rapid deployment, the locking unit of the utility model is by seat Seat belt locking, when seat harness is contracted, locking unit prevents seat harness to be locked up.Locking unit includes lock Only arm, be non-rotatably disposed to the central gear with axis center, starter toothed wheel and lock pin, when safety belt is contracted, Lock pin stops the locking protruding portion of lockup arm.But the device can not still solve the above problems.

Summary of the invention

The utility model in order to overcome the shortcomings in the prior art, provides a kind of car belt volume equipped with anti-locking device Device is received, can avoid the latch functions of safety belt by false triggering under normal operating condition, while locking function in unexpected situations Can be normally-open, guarantee occupant safety.

To achieve the goals above, the utility model uses following technical scheme:

A kind of automobile safety belt retractor equipped with anti-locking device, including coiler ontology and the anti-locking device of vehicle sense；Retracting Device ontology includes fixed shell, mandrel, latch assembly and vehicle sense component；Mandrel and fixed shell rotation connection, mandrel and fixation Housing into rotation connection, latch assembly are connect with mandrel；Vehicle sense component includes vehicle sense arm, and vehicle sense arm is equipped with vehicle sense ratchet, locking Component is equipped with outer ratchet, and vehicle sense ratchet is adapted to outer ratchet；The anti-locking device of vehicle sense includes vehicle sense driving gear, vehicle sense driven tooth Wheel and vehicle sense spreadet spreadet wheel；Vehicle sense driving gear is fixed with mandrel, and vehicle sense driving gear is rotated coaxially with mandrel；Vehicle sense driven tooth Wheel is engaged with fixed shell rotation connection, vehicle sense driven gear with vehicle sense driving gear；Vehicle sense spreadet spreadet wheel and fixed shell turn Dynamic connection, vehicle sense spreadet spreadet wheel are engaged with vehicle sense driven gear；Vehicle sense spreadet spreadet wheel is equipped with vehicle sense arc convex, fixed shell It is equipped with the anti-lock notch of vehicle sense；When vehicle sense arc convex is overlapped with the anti-lock notch of vehicle sense, vehicle sense arm is lifted, vehicle sense arc convex It is contacted with vehicle sense ratchet, has gap between vehicle sense ratchet and outer ratchet.

Preferably, the vehicle sense component further includes vehicle sensing rack and vehicle sense heavy ball, vehicle sensing rack is fixed with fixed shell, Vehicle sense arm and vehicle sensing rack are rotatablely connected, and vehicle sense heavy ball is arranged between vehicle sensing rack and vehicle sense arm, and vehicle sensing rack is equipped with inclination Face, vehicle sense heavy ball and inclination face contact, vehicle sense heavy ball and vehicle sense arm contact.

By implementing above-mentioned technical proposal, the latch functions quilt that safety belt is avoided under the non-pull-out state of safety belt may be implemented False triggering, while latch functions can be normally-open in unexpected situations, guarantees the function of occupant safety.The anti-lock dress of vehicle sense Vehicle sense component can be limited, latch functions is prevented to be triggered when safety belt is in and does not pull out state by setting.Before factory Debugging, safety belt make vehicle sense arc convex be located at anti-lock notch, the arc convex of vehicle sense at this time and vehicle sense in when not pulling out state Ratchet contact, has gap between vehicle sense ratchet and outer ratchet, can not trigger latch functions.When safety belt pulls out, band motor-car sense master Moving gear is transmitted by gear, and band motor-car sense lock gear rotates, and vehicle sense arc convex slowly leaves anti-lock notch；Safety belt (it is slightly less than the minimum value that safety belt normal use pulls out length) when pulling out certain length, vehicle sense arc convex can not block vehicle sense Ratchet, vehicle sense ratchet can be contacted with outer ratchet, the anti-lock failure of apparatus of vehicle sense at this time；Later when vehicle attitude deviates zone of reasonableness (such as tilt, turn on one's side and topple) or in accelerate and turning etc. driving status when, vehicle sense heavy ball is due to effect of inertia, with vehicle sense The relative position of bracket changes, and vehicle sense heavy ball is moved on inclined surface, vehicle sense heavy ball and vehicle sense arm contact, and then changes vehicle The position for feeling arm, contacts vehicle sense ratchet with outer ratchet, and latch assembly can not rotate, to make mandrel that can not continue to rotate, pacifies Full locking function is triggered, when realizing that safety belt is in operating position, function that latch functions can open in unexpected situations. Multiple gears of the anti-locking device of vehicle sense are by the setting of gear ratio, and guarantee safety belt is not before being pulled out to operating position, vehicle Sense arc convex blocks vehicle sense ratchet, anti-lock function triggering；For safety belt at operating position, vehicle sense arc convex will not be with vehicle sense Ratchet contact, latch functions can be normally triggered.

Preferably, the fixed shell is equipped with the second handle ratchet wheel, latch assembly includes external tooth disk, the first compression bullet Spring and main lock piece；External tooth disk and mandrel are rotatablely connected, the rotation axis of external tooth disk and the rotation overlapping of axles of mandrel, outer ratchet It is arranged on external tooth disk, main lock piece is slidably connected with mandrel, and one end of the first compressed spring is connect with external tooth disk, and first The other end of compressed spring is connect with mandrel, and external tooth disk is equipped with sliding groove；Main lock piece is equipped with sliding axle and main locking Ratchet, sliding axle can slide in sliding groove；Main locking ratchet is adapted to the second handle ratchet wheel portion.

The main lock piece can only be slided along the diametrical direction of mandrel, when vehicle sense ratchet and outer ratchet contact, external tooth circle Disk can not continue to rotate, and mandrel can still continue to rotate certain angle, main lock piece is driven to continue to rotate, at this time main lock piece Sliding axle is slided along sliding groove, and main lock piece is mobile to the diameter outside relative to mandrel, main lock ratchet and the second handle ratchet wheel portion Contact, by main lock piece locking, main lock piece blocks mandrel, rotate mandrel can not, to realize the locking function to safety belt Energy.First compressed spring can guarantee locking ratchet and the first handle ratchet wheel portion not in contact with when, external tooth disk can be with mandrel Rotation, main lock piece retract.

Preferably, the coiler ontology further includes inertial mass, inertial mass and latch assembly are rotatablely connected, in inertial mass Equipped with locking ratchet, fixed shell is equipped with the first handle ratchet wheel portion, and the first handle ratchet wheel portion and fixed shell are fixed, locking ratchet with First handle ratchet wheel portion adaptation；Latch assembly further includes the second compressed spring；One end of second compressed spring is connect with external tooth disk, The other end of second compressed spring is connect with inertial mass.

Safety belt is quickly pulled, safe tape speed is more than limit value, and inertial mass can be thrown away outward due to centrifugal force, make to lock Only ratchet is contacted with the first handle ratchet wheel portion, and external tooth disk can not continue to rotate, and mandrel can still continue to rotate certain angle, is driven Main lock piece continues to rotate, and the sliding axle of main lock piece is slided along sliding groove at this time, diameter of the main lock piece to opposite mandrel Outside is mobile, and main lock ratchet is contacted with the second handle ratchet wheel portion, and by main lock piece locking, main lock piece blocks mandrel, make mandrel without Method rotation, to realize the latch functions to safety belt.Second compressed spring guarantee mandrel revolving speed be less than setting value when, inertia Block will not be thrown away by centrifugal force, and locking ratchet will not be contacted with the first handle ratchet wheel portion.

Preferably, further including that band feels anti-locking device, it includes band sense driving gear, band sense driven gear that band, which feels anti-locking device, Lock gear is felt with band；Band sense driving gear is fixed with mandrel, and band sense driving gear is rotated coaxially with mandrel；Band sense driven gear With fixed shell rotation connection, band sense driven gear is engaged with sense driving gear；Band sense lock gear and mandrel are rotatablely connected, Band sense lock gear is engaged with sense driven gear；Band sense lock gear is equipped with band sense arc convex, and inertial mass is equipped with arc Shape slot, band sense arc convex are adapted to arc groove.

The anti-locking device of band sense can limit latch assembly, prevent when safety belt is in and does not pull out state Latch functions are triggered.Debugging before factory makes safety belt in when not pulling out state, and band sense arc convex is caught in arc groove, At this point, inertial mass is locked up even if quickly pulling safety belt, it will not be mobile relative to latch assembly, therefore latch assembly will not be made Latch functions triggering.When safety belt pulls out, band sense driving gear rotation is driven, is transmitted by gear, band sense lock gear is driven Rotation, band sense arc convex are slowly detached from arc groove；(it is slightly less than the pull-out of safety belt normal use when safety belt pulls out certain length The minimum value of length), band sense arc convex completely disengages arc groove, and band feels anti-lock failure of apparatus at this time；If continuing later quick Safety is pulled, safe tape speed is more than limit value, and inertial mass can be thrown away outward due to centrifugal force, be made in locking ratchet and first The contact of ratchet portion, latch assembly can not rotate, to make mandrel that can not continue to rotate, safety belt latch functions are triggered, and realize When safety belt is in operating position, function that latch functions can open in unexpected situations.With the multiple gears for feeling anti-locking device By the setting of gear ratio, guaranteeing safety belt before not being pulled out to operating position, band sense arc convex is stuck in arc groove, Anti- lock function triggering；For safety belt at operating position, band sense arc convex is detached from arc groove, and latch functions can be touched normally Hair.

Preferably, the mandrel is equipped with axle sleeve, axle sleeve is fixed with mandrel, and band sense driving gear passes through axle sleeve and mandrel Fixed, band sense lock gear is rotatablely connected by axle sleeve and mandrel.The structure can be reduced the structural complexity of mandrel, reduces and adds Work cost.

Preferably, the inertial mass is equipped with rotation hole, external tooth disk is equipped with inertia rotation axis, rotation hole and inertia Rotation axis adaptation, inertial mass connects by inertia rotation axis with external tooth disk rotational, rotation hole be arranged in the second compressed spring and Between locking ratchet.The inertial mass center of gravity is close to locking ratchet side, and when external tooth disk rotational, inertial mass is around inertia rotation axis Rotation, inertial mass are equipped with the side that the side of locking ratchet is contacted far from external tooth circle disk center, inertial mass with the second compressed spring Close to external tooth circle disk center.

Preferably, the inertial mass is equipped with spring card slot, external tooth disk is equipped with spring support, the second compressed spring It is connect by spring card slot with inertial mass, the second compressed spring is connect by spring support with external tooth disk.

Preferably, the fixed shell includes solid shell ontology and fixed lid, Gu shell ontology and fixed lid are fixed, in second Ratchet portion is arranged on solid shell ontology；Fixed lid includes end cap portions and outer ring rampart portion, and the first handle ratchet wheel portion is arranged in outer ring It is fixed inside wall portion and with end cap portions.

Preferably, the inertial mass includes surrounding layer and inline layer, outsourcing layer is plastics, and embedding layer material is gold Belong to.The sensitivity of automobile safety belt retractor locking is directly related with inertial mass weight, and inline layer increases the weight of inertial mass, And inline layer can be waste material reduction manufacturing cost of the other parts after punching press.And moulding skin-friction coefficient is smaller, it can To reduce the friction between inertial mass and other parts.For synthesis, the part weight that weight ratio is molded merely, than the part of simple die casting Gently, it can control pts wt using plastic, the blank space on other molds stamps out together to be come, and raw material are substantially increased Utilization rate controls and accomplishes weight-adjustable in the purpose performance of the weight of the part, so as to control inertia force, optimizes product Energy.

The beneficial effects of the utility model are: (1) can shield the locking of seat belt retractor when safety belt does not pull out Function；(2) safety belt is in running order constantly, and anti-locking device will not influence the latch functions of shielding seat belt retractor；(3) Latch assembly and anti-lock device performance are reliable.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the first partial structural schematic diagram of the utility model；

Fig. 3 is the structural schematic diagram of the anti-locking device of vehicle sense in the utility model；

Fig. 4 is in the utility model with the structural schematic diagram for feeling anti-locking device；

Fig. 5 is second partial structural diagram of the utility model；

Fig. 6 is the third partial structural diagram of the utility model；

Fig. 7 is the 4th partial structural diagram of the utility model；

Fig. 8 is the 5th partial structural diagram of the utility model.

In figure: coiler ontology 1, fixed shell 1.1, fixed lid 1.1.1, the first handle ratchet wheel portion 1.1.1.1, vehicle sense are anti-lock Notch 1.1.1.2, end cap portions 1.1.1.3, outer ring ring wall 1.1.1.4, solid shell ontology 1.1.2, the second handle ratchet wheel portion 1.1.2.1, Mandrel 1.2, latch assembly 1.3, external tooth disk 1.3.1, sliding groove 1.3.1.1, spring support 1.3.1.2, inertia rotation axis 1.3.1.3, outer ratchet 1.3.1.4, the first compressed spring 1.3.2, the second compressed spring 1.3.3, main lock piece 1.3.4, sliding Axis 1.3.4.1, main lock ratchet 1.3.4.2, inertial mass 1.4, locking ratchet 1.4.1, arc groove 1.4.2, spring card slot 1.4.3, Rotation hole 1.4.4, vehicle sense component 1.5, vehicle sensing rack 1.5.1, vehicle sense heavy ball 1.5.2, vehicle sense arm 1.5.3, vehicle sense ratchet 1.5.4, band feels anti-locking device 2, band sense driving gear 2.1, band sense driven gear 2.2, band sense lock gear 2.3, band sense arc Raised 2.4, the anti-locking device 3 of vehicle sense, vehicle sense driving gear 3.1, vehicle sense driven gear 3.2, vehicle sense spreadet spreadet wheel 3.3, vehicle sense arc Shape protrusion 3.4.

Specific embodiment

The utility model is further described in the following with reference to the drawings and specific embodiments.

Embodiment 1:

As shown in Figures 1 to 8, a kind of automobile safety belt retractor equipped with anti-locking device, including coiler ontology 1 and vehicle Feel anti-locking device 3；Coiler ontology 1 includes fixed shell 1.1, mandrel 1.2, latch assembly 1.3 and vehicle sense component 1.5；Mandrel 1.2 are rotatablely connected with fixed shell 1.1, and mandrel 1.2 and fixed shell 1.1 are rotatablely connected, and latch assembly 1.3 and mandrel 1.2 connect It connects；Vehicle sense component 1.5 is including vehicle sense arm 1.5.3, vehicle sensing rack 1.5.1 and vehicle sense heavy ball 1.5.2, vehicle sensing rack 1.5.1 and admittedly Fixed shell 1.1 is fixed, and vehicle sense arm 1.5.3 and vehicle sensing rack 1.5.1 are rotatablely connected, and vehicle sense heavy ball 1.5.2 is arranged in vehicle sensing rack 1.5.1 between vehicle sense arm 1.5.3, vehicle sensing rack 1.5.1 is equipped with inclined surface, vehicle sense heavy ball 1.5.2 and inclination face contact, vehicle sense Heavy ball 1.5.2 is contacted with vehicle sense arm 1.5.3；Vehicle sense arm 1.5.3 is equipped with vehicle sense ratchet 1.5.4；The anti-locking device 3 of vehicle sense includes vehicle Feel driving gear 3.1, vehicle sense driven gear 3.2 and vehicle sense spreadet spreadet wheel 3.3；Vehicle sense driving gear 3.1 and mandrel 1.2 are fixed, Vehicle sense driving gear 3.1 is rotated coaxially with mandrel 1.2；Vehicle sense driven gear 3.2 and fixed shell 1.1 are rotatablely connected, vehicle sense from Moving gear 3.2 is engaged with vehicle sense driving gear 3.1；Vehicle sense spreadet spreadet wheel 3.3 and fixed shell 1.1 are rotatablely connected, vehicle sense locking Gear 3.3 is engaged with vehicle sense driven gear 3.2；Vehicle sense spreadet spreadet wheel 3.3 is equipped with vehicle sense arc convex 3.4, fixed shell 1.1 It is equipped with the anti-lock notch 1.1.1.2 of vehicle sense；When vehicle sense arc convex 3.4 is overlapped with the anti-lock notch 1.1.1.2 of vehicle sense, vehicle sense arm 1.5.3 it lifts, vehicle sense arc convex 3.4 is contacted with vehicle sense ratchet 1.5.4, between vehicle sense ratchet 1.5.4 and outer ratchet 1.3.1.4 There is gap.

The fixed shell 1.1 is equipped with the second handle ratchet wheel, and latch assembly 1.3 includes external tooth disk 1.3.1, the first compression Spring 1.3.2 and main lock piece 1.3.4；External tooth disk 1.3.1 and mandrel 1.2 are rotatablely connected, the rotation axis of external tooth disk 1.3.1 With the rotation overlapping of axles of mandrel 1.2, external tooth disk 1.3.1 is equipped with outer ratchet 1.3.1.4, vehicle sense ratchet 1.5.4 and outer ratchet 1.3.1.4 it is adapted to, main lock piece 1.3.4 is slidably connected with mandrel 1.2, one end of the first compressed spring 1.3.2 and external tooth disk 1.3.1 it connects, the other end of the first compressed spring 1.3.2 is connect with mandrel 1.2, and external tooth disk 1.3.1 is equipped with sliding groove 1.3.1.1；Main lock piece 1.3.4 is equipped with sliding axle 1.3.4.1 and main locking ratchet 1.4.1, sliding axle 1.3.4.1 can be in cunnings Sliding in dynamic slot 1.3.1.1；Main locking ratchet 1.4.1 is adapted to the second handle ratchet wheel portion 1.1.2.1.

By implementing above-mentioned technical proposal, the latch functions quilt that safety belt is avoided under the non-pull-out state of safety belt may be implemented False triggering, while latch functions can be normally-open in unexpected situations, guarantees the function of occupant safety.The anti-lock dress of vehicle sense Vehicle sense component 1.5 can be limited, latch functions is prevented to be triggered when safety belt is in and does not pull out state by setting 3.Factory Preceding debugging, safety belt make vehicle sense arc convex 3.4 be located at anti-lock notch, the arc of vehicle sense at this time is convex in when not pulling out state It plays 3.4 to contact with vehicle sense ratchet 1.5.4, has gap between vehicle sense ratchet 1.5.4 and outer ratchet 1.3.1.4, locking can not be triggered Function.When safety belt pulls out, band motor-car sense driving gear 3.1 is transmitted by gear, and band motor-car sense lock gear rotates, vehicle sense Arc convex 3.4 slowly leaves anti-lock notch；(it is slightly less than safety belt normal use when safety belt pulls out certain length and pulls out length Minimum value), vehicle sense arc convex 3.4 can not block vehicle sense ratchet 1.5.4, and vehicle sense ratchet 1.5.4 can be with outer ratchet 1.3.1.4 it contacts, the anti-locking device 3 of vehicle sense at this time fails；It (such as tilts, turn on one's side and inclines when vehicle attitude deviates zone of reasonableness later Cover) or in accelerate and turning etc. driving status when, vehicle sense heavy ball 1.5.2 is due to effect of inertia, with vehicle sensing rack 1.5.1's Relative position changes, and vehicle sense heavy ball 1.5.2 is moved on inclined surface, and vehicle sense heavy ball 1.5.2 is contacted with vehicle sense arm 1.5.3, And then change the position of vehicle sense arm 1.5.3, contact vehicle sense ratchet 1.5.4 with outer ratchet 1.3.1.4, latch assembly 1.3 can not Rotation, to make mandrel 1.2 that can not continue to rotate, safety belt latch functions are triggered, when realizing that safety belt is in operating position, The function that latch functions can open in unexpected situations.Multiple gears of the anti-locking device 3 of vehicle sense by the setting of gear ratio, Guarantee safety belt before not being pulled out to operating position, vehicle sense arc convex 3.4 blocks vehicle sense ratchet 1.5.4, anti-lock function triggering； At operating position, vehicle sense arc convex 3.4 will not contact safety belt with vehicle sense ratchet 1.5.4, and latch functions can be by normally quilt Triggering.

The main lock piece 1.3.4 can only be slided along the diametrical direction of mandrel 1.2, vehicle sense ratchet 1.5.4 and outer ratchet When 1.3.1.4 contacting, external tooth disk 1.3.1 can not be continued to rotate, and mandrel 1.2 can still continue to rotate certain angle, drive master Lock piece 1.3.4 is continued to rotate, and the sliding axle 1.3.4.1 of main lock piece 1.3.4 is slided along sliding groove 1.3.1.1 at this time, main Lock piece 1.3.4 connects to movement on the outside of the diameter relative to mandrel 1.2, main lock ratchet 1.3.4.2 with the second handle ratchet wheel portion 1.1.2.1 Touching, by main lock piece 1.3.4 locking, main lock piece 1.3.4 blocks mandrel 1.2, rotate mandrel 1.2 can not, thus realization pair The latch functions of safety belt.First compressed spring 1.3.2 can guarantee in locking ratchet 1.4.1 and the first handle ratchet wheel portion 1.1.1.1 not in contact with when, external tooth disk 1.3.1 can be rotated together with mandrel 1.2, and main lock piece 1.3.4 is retracted.

Embodiment 2:

On the basis of embodiment 1, the coiler ontology 1 further includes inertial mass 1.4, inertial mass 1.4 and latch assembly 1.3 rotation connections, inertial mass 1.4 are equipped with locking ratchet 1.4.1, arc groove 1.4.2, spring card slot 1.4.3 and rotation hole 1.4.4, fixed shell 1.1 is equipped with the first handle ratchet wheel portion 1.1.1.1, and the first handle ratchet wheel portion 1.1.1.1 and fixed shell 1.1 are solid Fixed, locking ratchet 1.4.1 is adapted to the first handle ratchet wheel portion 1.1.1.1；Latch assembly 1.3 further includes the second compressed spring 1.3.3； One end of second compressed spring 1.3.3 is connect with external tooth disk 1.3.1, the other end and inertial mass of the second compressed spring 1.3.3 1.4 connection.

Safety belt is quickly pulled, safe tape speed is more than limit value, and inertial mass 1.4 can be thrown away outward due to centrifugal force, Contact locking ratchet 1.4.1 with the first handle ratchet wheel portion 1.1.1.1, external tooth disk 1.3.1 can not be continued to rotate, and mandrel 1.2 is still Certain angle can be continued to rotate, main lock piece 1.3.4 is driven to continue to rotate, at this time the sliding axle of main lock piece 1.3.4 1.3.4.1 it is slided along sliding groove 1.3.1.1, main lock piece 1.3.4 is mobile to the diameter outside relative to mandrel 1.2, main lock spine Tooth 1.3.4.2 is contacted with the second handle ratchet wheel portion 1.1.2.1, and by main lock piece 1.3.4 locking, main lock piece 1.3.4 blocks mandrel 1.2, it rotate mandrel 1.2 can not, to realize the latch functions to safety belt.Second compressed spring 1.3.3 guarantees in mandrel When 1.2 revolving speeds are less than setting value, inertial mass 1.4 will not be thrown away by centrifugal force, locking ratchet 1.4.1 and the first handle ratchet wheel portion 1.1.1.1 it will not contact.

It further include that band feels anti-locking device 2, it includes band sense driving gear 2.1, band sense driven gear 2.2 that band, which feels anti-locking device 2, Lock gear 2.3 is felt with band；The mandrel 1.2 is equipped with axle sleeve, and axle sleeve and mandrel 1.2 are fixed, and band sense driving gear 2.1 passes through Axle sleeve and mandrel 1.2 are fixed, and band sense lock gear 2.3 is rotatablely connected by axle sleeve and mandrel 1.2；Band sense driving gear 2.1 with Mandrel 1.2 rotates coaxially；Band sense driven gear 2.2 and fixed shell 1.1 are rotatablely connected, and band sense driven gear 2.2 is led with sense Moving gear 2.1 engages；Band sense lock gear 2.3 is engaged with sense driven gear 2.2；Band sense lock gear 2.3 is equipped with band sense Arc convex 2.4, band sense arc convex 2.4 are adapted to arc groove 1.4.2.

The anti-locking device 2 of band sense can limit latch assembly 1.3 when safety belt is in and does not pull out state, Latch functions are prevented to be triggered.Debugging before factory makes safety belt in when not pulling out state, and band sense arc convex 2.4 is caught in Arc groove 1.4.2, at this point, inertial mass 1.4 is locked up even if quickly pulling safety belt, it will not be mobile relative to latch assembly 1.3, 1.3 latch functions of latch assembly will not therefore triggered.When safety belt pulls out, drives band sense driving gear 2.1 to rotate, pass through tooth Wheel transmitting drives band sense lock gear 2.3 to rotate, and band sense arc convex 2.4 is slowly detached from arc groove 1.4.2；Safety belt pulls out (it is slightly less than the minimum value that safety belt normal use pulls out length) when certain length, band sense arc convex 2.4 completely disengages arc Slot 1.4.2, band feels anti-locking device 2 and fails at this time；If continuing quickly to pull safety later, safe tape speed is more than limit value, is used to Property block 1.4 can be thrown away outward due to centrifugal force, contact locking ratchet 1.4.1 with the first handle ratchet wheel portion 1.1.1.1, locking group Part 1.3 can not rotate, to make mandrel 1.2 that can not continue to rotate, safety belt latch functions are triggered, and realize that safety belt is in work When making position, function that latch functions can open in unexpected situations.Pass through gear drive with the multiple gears for feeling anti-locking device 2 The setting of ratio guarantees safety belt before not being pulled out to operating position, and band sense arc convex 2.4 is stuck in arc groove 1.4.2, anti-lock Function triggering；For safety belt at operating position, band sense arc convex 2.4 is detached from arc groove 1.4.2, and latch functions can be by normally quilt Triggering.

The external tooth disk 1.3.1 is equipped with inertia rotation axis 1.3.1.3 and spring support 1.3.1.2, rotation hole 1.4.4 It is adapted to inertia rotation axis 1.3.1.3, inertial mass 1.4 is connected by inertia rotation axis 1.3.1.3 and external tooth disk 1.3.1 rotation It connects, rotation hole 1.4.4 is arranged between the second compressed spring 1.3.3 and locking ratchet 1.4.1；Second compressed spring 1.3.3 is logical It crosses spring card slot 1.4.3 to connect with inertial mass 1.4, the second compressed spring 1.3.3 passes through spring support 1.3.1.2 and external tooth disk 1.3.1 connection.1.4 center of gravity of inertial mass is close to the side locking ratchet 1.4.1, when external tooth disk 1.3.1 is rotated, inertial mass 1.4 rotate around inertia rotation axis 1.3.1.3, and side of the inertial mass 1.4 equipped with locking ratchet 1.4.1 is far from external tooth disk 1.3.1 The center of circle, the side that inertial mass 1.4 is contacted with the second compressed spring 1.3.3 is close to the center of circle external tooth disk 1.3.1.

Preferably, the fixed shell 1.1 includes solid shell ontology 1.1.2 and fixed lid 1.1.1, Gu shell ontology 1.1.2 It is fixed with fixed lid 1.1.1, the second handle ratchet wheel portion 1.1.2.1 is arranged on solid shell ontology 1.1.2；Fixed lid 1.1.1 includes end Cover 1.1.1.3 and the outer ring portion ring wall 1.1.1.4, the first handle ratchet wheel portion 1.1.1.1 are arranged inside the outer portion ring wall 1.1.1.4 And it is fixed with end cap portions 1.1.1.3.

The beneficial effects of the utility model are: (1) can shield the locking of seat belt retractor when safety belt does not pull out Function；(2) safety belt is in running order constantly, and anti-locking device will not influence the latch functions of shielding seat belt retractor；(3) Latch assembly 1.3 and anti-lock device performance are reliable.

Claims (9)

1. a kind of automobile safety belt retractor equipped with anti-locking device, characterized in that including coiler ontology and the anti-lock dress of vehicle sense It sets；Coiler ontology includes fixed shell, mandrel, latch assembly and vehicle sense component；Mandrel and fixed shell rotation connection, locking Component is connect with mandrel；Vehicle sense component includes vehicle sense arm, and vehicle sense arm is equipped with vehicle sense ratchet, and latch assembly is equipped with outer ratchet, Vehicle sense ratchet is adapted to outer ratchet；The anti-locking device of vehicle sense includes vehicle sense driving gear, vehicle sense driven gear and vehicle sense spreadet spreadet wheel； Vehicle sense driving gear is fixed with mandrel, and vehicle sense driving gear is rotated coaxially with mandrel；Vehicle sense driven gear and fixed housing into rotation Connection, vehicle sense driven gear are engaged with vehicle sense driving gear；Vehicle sense spreadet spreadet wheel and fixed shell rotation connection, vehicle sense locking tooth Wheel is engaged with vehicle sense driven gear；Vehicle sense spreadet spreadet wheel is equipped with vehicle sense arc convex, and it is anti-lock scarce that fixed shell is equipped with vehicle sense Mouthful；When vehicle sense arc convex is overlapped with the anti-lock notch of vehicle sense, vehicle sense arm is lifted, and vehicle sense arc convex is contacted with vehicle sense ratchet, There is gap between vehicle sense ratchet and outer ratchet.

2. a kind of automobile safety belt retractor equipped with anti-locking device according to claim 1, characterized in that the vehicle sense Component further includes vehicle sensing rack and vehicle sense heavy ball, and vehicle sensing rack is fixed with fixed shell, and vehicle sense arm and vehicle sensing rack are rotatablely connected, Vehicle sense heavy ball is arranged between vehicle sensing rack and vehicle sense arm, and vehicle sensing rack is equipped with inclined surface, vehicle sense heavy ball and inclination face contact, vehicle Feel heavy ball and vehicle sense arm contact.

3. a kind of automobile safety belt retractor equipped with anti-locking device according to claim 1, characterized in that the fixation Shell is equipped with the second handle ratchet wheel, and latch assembly includes external tooth disk, the first compressed spring and main lock piece；External tooth disk and core Axis rotation connection, the rotation axis of external tooth disk and the rotation overlapping of axles of mandrel, outer ratchet are arranged on external tooth disk, main lock piece It is slidably connected with mandrel, one end of the first compressed spring is connect with external tooth disk, and the other end and mandrel of the first compressed spring connect It connects, external tooth disk is equipped with sliding groove；Main lock piece is equipped with sliding axle and main locking ratchet, and sliding axle can be slided in sliding groove It is dynamic；Main locking ratchet is adapted to the second handle ratchet wheel portion.

4. a kind of automobile safety belt retractor equipped with anti-locking device according to claim 3, characterized in that the retracting Device ontology further includes inertial mass, and inertial mass and latch assembly are rotatablely connected, and inertial mass is equipped with locking ratchet, is set on fixed shell There is the first handle ratchet wheel portion, the first handle ratchet wheel portion is fixed with fixed shell, and locking ratchet is adapted to the first handle ratchet wheel portion；Latch assembly It further include the second compressed spring；One end of second compressed spring is connect with external tooth disk, the other end of the second compressed spring and used Property block connection.

5. a kind of automobile safety belt retractor equipped with anti-locking device according to claim 4, characterized in that described also to wrap It includes band and feels anti-locking device, include band sense driving gear, with sense driven gear and with sense lock gear with anti-locking device is felt；Band sense master Moving gear is fixed with mandrel, and band sense driving gear is rotated coaxially with mandrel；Band sense driven gear and fixed shell rotation connection, band Sense driven gear is engaged with sense driving gear；Band sense lock gear and mandrel be rotatablely connected, band sense lock gear with sense from Moving gear engagement；Band sense lock gear is equipped with band sense arc convex, and inertial mass is equipped with arc groove, band sense arc convex and arc Shape slot adaptation.

6. a kind of automobile safety belt retractor equipped with anti-locking device according to claim 5, characterized in that the mandrel It is equipped with axle sleeve, axle sleeve is fixed with mandrel, and band sense driving gear is fixed by axle sleeve and mandrel, and band sense lock gear passes through axle sleeve It is rotatablely connected with mandrel.

7. a kind of automobile safety belt retractor equipped with anti-locking device according to claim 4 or 5 or 6, characterized in that institute Inertial mass is stated equipped with rotation hole, external tooth disk is equipped with inertia rotation axis, and rotation hole is adapted to inertia rotation axis, and inertial mass is logical It crosses inertia rotation axis to connect with external tooth disk rotational, rotation hole is arranged between the second compressed spring and locking ratchet.

8. a kind of automobile safety belt retractor equipped with anti-locking device according to claim 4 or 5 or 6, characterized in that institute Inertial mass is stated equipped with spring card slot, external tooth disk is equipped with spring support, and the second compressed spring passes through spring card slot and inertia Block connection, the second compressed spring are connect by spring support with external tooth disk.

9. a kind of automobile safety belt retractor equipped with anti-locking device according to claim 4 or 5 or 6, characterized in that institute Stating inertial mass includes surrounding layer and inline layer, and outsourcing layer is plastics, and embedding layer material is metal.