CN105231600B - Inflatable seat belt locker - Google Patents
Inflatable seat belt locker Download PDFInfo
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- CN105231600B CN105231600B CN201410326460.3A CN201410326460A CN105231600B CN 105231600 B CN105231600 B CN 105231600B CN 201410326460 A CN201410326460 A CN 201410326460A CN 105231600 B CN105231600 B CN 105231600B
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- lock
- button
- efferent duct
- seat belt
- latch
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Abstract
The present invention provides a kind of inflatable seat belt lockers, including buckle device and lock tongue, the buckle device includes protecgulum, pressure lock shrapnel, button, push-button reset spring, stent, latch, tapered end skeleton, undertaking pilot seal part, lock tongue ejector spring, cylinder and rear cover.Inflatable seat belt locker according to the present invention, when lock tongue is inserted in place, the end face outside compression type for accepting one end of pilot seal part and the efferent duct of cylinder is tightly connected, thus, on the one hand, the seal failure caused by the sealing part abrasion at the position can be avoided；On the other hand, accepting the assembly precision of the efferent duct of pilot seal part and cylinder can reduce, so that the sealing assembling for accepting the efferent duct of pilot seal part and cylinder is more prone to.
Description
Technical field
The invention belongs to car belt technical field, more particularly to a kind of inflatable seat belt locker.
Background technology
Automotive occupant front area is by the important area of air bag for protection in the case where colliding.The region can
By the air bag for protection at steering wheel and instrument board.
In addition, inflatable set-belt system may be provided in the volume to occupant's trunk front and shoulder in the case of colliding
Outer protection.
Inflatable seat belt, while it is working (vehicle collide triggering gas generating unit work when), it is necessary to pass through
Gases at high pressure caused by gas generating unit are conveyed to the air sac belt on ribbon by one ventilation pipe；And passenger without using
During safety belt, the above-mentioned ventilation pipe of inflatable seat belt can be cut off；In addition, when vehicle collision occurs, inflatable peace
Full band must also bear the impact force that passenger leans forward.
The gases at high pressure for how taking into account the ventilation pipe in inflatable seat belt locker stablize conveying and lock
The smooth work of the locking and unlocking function of device, be inflatable seat belt locker exploitation need to solve first ask
Topic.
The content of the invention
The technical problems to be solved by the invention are to provide one kind and take into account gases at high pressure stable conveying and locking wherein
With the inflatable seat belt locker of the smooth work of unlocking function.
Technical solution is as follows used by the present invention solves above-mentioned technical problem：
A kind of inflatable seat belt locker is provided, including buckle device and lock tongue, before the buckle device includes
Lid, pressure lock shrapnel, button, push-button reset spring, stent, latch, tapered end skeleton, undertaking pilot seal part, lock tongue ejection bullet
Spring, cylinder and rear cover, wherein,
The protecgulum is fixedly connected with rear cover, be formed between the protecgulum and rear cover accommodate it is described pressure lock shrapnel, button,
Push-button reset spring, stent, latch, tapered end skeleton, the assembly space for accepting pilot seal part and lock tongue ejector spring；
The stent is fixed on the outside of the tapered end skeleton, and the stent is provided with the activity sky slided for the latch
Between；The one side of the latch towards the tapered end skeleton is provided with lock pawl, is provided on the tapered end skeleton for the lock
Determine the locking entrance of pawl disengaging, the lock tongue includes tongue piece and the conduit being arranged among tongue piece, lock is formed on the tongue piece
Only slot, when the lock tongue is inserted into buckle device, the locking entrance is concordant with the lock groove；
The pressure lock shrapnel is used to apply the power towards the locking entrance to the latch；
The cylinder includes cylinder body and the efferent duct being connected on cylinder body, and gas input side and the gas of the cylinder body occur
Device is tightly connected；
The undertaking pilot seal part is slidably arranged in the inner space of the tapered end skeleton, and the efferent duct is plugged on
One end of the tapered end skeleton, the lock tongue are inserted into the other end of the tapered end skeleton；One end branch of the lock tongue ejector spring
On the cylinder, the other end is supported on the undertaking pilot seal part for support；
Before lock tongue insertion, the undertaking pilot seal part stops that the lock pawl is inwardly moved through the locking entrance
It is dynamic；When lock tongue is inserted into, the undertaking pilot seal part compresses the lock tongue ejector spring and releasing pair under the promotion of lock tongue
The lock pawl passes through the stop that the locking entrance moves inward, so that the lock pawl passes through the locking entrance simultaneously
It is caught in the lock groove of the lock tongue, to form the lockup state of locker；Also, in the lockup state, the undertaking is led
It is tightly connected to the end face outside compression type of one end of sealing element and the efferent duct, the other end for accepting pilot seal part
It is tightly connected with the conduit；
The knob is slidably connected with the tapered end skeleton, and the push-button reset spring is used for the reset of the knob；Institute
Knob is stated for the lock pawl of the latch to be driven to exit the lock groove when pressed, the undertaking pilot seal part exists
The lock pawl of the latch is exited after the lock groove, promotes lock tongue outside by the restoring force of the lock tongue ejector spring
Pop-up.
Further, the pilot seal part of accepting includes integrally formed big sleeve and small sleeve, the efferent duct
Seal groove is formed in end face outside, sealing ring is provided in the seal groove, in the lockup state of locker, the small set
Cylinder is inserted into the efferent duct and the outer surface of the small sleeve is bonded with the inner wall of the efferent duct, and the one of the big sleeve
Side end face is pressed in the end face outside of the sealing ring and the efferent duct, to form one end of the undertaking pilot seal part
It is tightly connected with the compression type of the end face outside of the efferent duct.
Further, the pilot seal part of accepting includes integrally formed big sleeve and small sleeve, the efferent duct
Seal groove is formed in end face outside, sealing ring is provided in the seal groove, the big sleeve is formed with the prominent small set
The annular flange of one side end face of cylinder between the big sleeve and small sleeve to form slot root, in the locking shape of locker
State, the small sleeve is inserted into the efferent duct and the outer surface of the small sleeve is bonded with the inner wall of the efferent duct, institute
It states slot root to be pressed in the end face outside of the sealing ring and the efferent duct, the medial surface ring set of the annular flange is defeated
It is close to form one end of the undertaking pilot seal part and the compression type of the end face outside of the efferent duct on the lateral surface of outlet pipe
Envelope connection.
Further, male cone (strobilus masculinus), the inside shape of the conduit of the lock tongue are formed on another side end face of the big sleeve
The matched inner conical surface of male cone (strobilus masculinus) described in Cheng Youyu, in the lockup state of locker, the male cone (strobilus masculinus) and the inner conical surface are close
Fitting, to form the sealed connection of the other end and the conduit of the undertaking pilot seal part.
Further, the cylinder body adjoining position is provided with supporting table inside the efferent duct, the supporting table
Middle part is formed with venthole, and one end of the lock tongue ejector spring is stretched into the efferent duct and is supported in the supporting table,
The other end is inserted in the small sleeve and is abutted with a side end face of the big sleeve.
Further, the tapered end skeleton is formed by whole piece metal plate doubling, and is fixed on the cylinder.
Further, the both ends of the tapered end skeleton are respectively formed with the first arcuate space and the second arcuate space, described
Efferent duct is plugged in first arcuate space, and the lock tongue is inserted into second arcuate space.
Further, the intermediate of the tapered end skeleton forms hollow space, and the undertaking pilot seal part is in the hollow out
Relatively described tapered end skeleton slides in space.
Further, the both sides of the tapered end skeleton are respectively formed as guide rail, the both sides for accepting pilot seal part point
A lug is not provided with, and the lug is slidably arranged in the guide rail.
Further, the lock pawl is formed with the first wedge surface, and the second paired wedge surface is formed on the lug,
Second wedge surface promotes after lock tongue outwards pops up to be moved outside first wedge surface, to promote outside the lock pawl of the latch
It moves.
Further, the both sides of the edge of the button are each provided with two snap fingers, and the snap finger is slidably arranged in described lead
In rail, to realize being slidably connected for the button and the tapered end skeleton.
Further, inclined-plane is formed on the latch, paired voussoir, the wedge are provided on the button
Block is promoted when the button is pressed to be moved outside the inclined-plane, and being pierced by the locking with the lock pawl for promoting the latch enters
Mouthful.
Further, the both sides of the latch are formed with positioning protrusion, and the positioning protrusion slip is fitted in the branch
The outer ledge of frame.
Further, the position on the madial wall of the activity space of the stent with the latch sliding contact is provided with
Slide.
Further, be formed with button bit on the button, when locker is in lockup state, the button bit with it is described
The both sides corner of latch abuts, to keep the stabilization of the latch.
Further, middle slide is formed on the latch, one end of the pressure lock shrapnel acts on the centre
On slideway, the other end is fixedly connected on the knob.
Further, the centre position of the inside of the button is provided with the first pillar, the centre position phase of the stent
The second pillar is provided with over the ground, and the both ends of the push-button reset spring are connected on first pillar and the second pillar.
Inflatable seat belt locker according to the present invention in structure design, has taken into account gases at high pressure wherein
Stablize conveying and locking and the smooth work of unlocking function, be conducive to the popularization of inflatable seat belt, also, be inserted into lock tongue
During position (during locker board lockup state), the end face outside for accepting one end of pilot seal part and the efferent duct of cylinder compresses
Formula is tightly connected, thus, on the one hand, the seal failure caused by the sealing part abrasion at the position can be avoided；On the other hand,
Accepting the assembly precision of the efferent duct of pilot seal part and cylinder can reduce, so that accepting pilot seal part and cylinder
The sealing assembling of efferent duct is more prone to.
Description of the drawings
Fig. 1 is the structure diagram for the inflatable seat belt locker that one embodiment of the invention provides；
Fig. 2 is the parts exploded view for the inflatable seat belt locker that one embodiment of the invention provides；
Fig. 3 is the enlarged drawing of the stent in Fig. 1；
Fig. 4 is another side view of Fig. 3；
Fig. 5 is the enlarged drawing of the latch in Fig. 1；
Fig. 6 is another side view of Fig. 5；
Fig. 7 is the enlarged drawing of the tapered end skeleton in Fig. 1；
Fig. 8 is another side view of Fig. 7；
Fig. 9 is the enlarged drawing of the pressure lock shrapnel in Fig. 1；
Figure 10 is the enlarged drawing of the button in Fig. 1；
Figure 11 is another side view of Figure 10；
Figure 12 is the connection diagram of the pressure lock shrapnel and knob in one embodiment of the invention；
Figure 13 is the enlarged drawing of the undertaking pilot seal part in Fig. 1；
Figure 14 is the connection diagram of the cylinder and gas generating unit in one embodiment of the invention.
Reference numeral in Figure of description is as follows：
1st, buckle device；2nd, lock tongue；21st, tongue piece；210th, lock groove；22nd, conduit；11st, protecgulum；12nd, pressure lock shrapnel；121、
Tear not-go-end；122nd, through hole；123rd, mounting hole；124th, tapping screw；13rd, button；131st, flat hole；132nd, voussoir；133rd, detain
Pawl；134th, button bit；135th, the first pillar；14th, push-button reset spring；15th, stent；150th, activity space；151st, claw；152nd, block
Foot；153rd, slide；154th, the second pillar；155th, outer ledge；16th, latch；161st, middle slide；162nd, lock pawl；1621、
First wedge surface；163rd, inclined-plane；164th, positioning protrusion；165th, corner；17th, tapered end skeleton；170th, locking entrance；171st, the first arch
Space；172nd, the second arcuate space；173rd, hollow space；174th, top groove；175th, hole is engraved；176th, guide rail；18th, accept and be oriented to
Sealing element；181st, big sleeve；1811st, male cone (strobilus masculinus)；182nd, small sleeve；183rd, lug；1831st, the second wedge surface；19th, lock tongue ejection bullet
Spring；101st, cylinder；1011st, cylinder body；1012nd, efferent duct；1013rd, seal groove；1014th, sealing ring；1015th, supporting table；1016th, lead to
Stomata；102nd, rear cover；3rd, gas generating unit.
Specific embodiment
In order to which technical problem solved by the invention, technical solution and advantageous effect is more clearly understood, below in conjunction with
Accompanying drawings and embodiments, the present invention is further described in detail.It should be appreciated that specific embodiment described herein is only
To explain the present invention, it is not intended to limit the present invention.
As shown in Figure 1 to Figure 2, the inflatable seat belt locker that one embodiment of the invention provides, including band spiral-lock
1 and lock tongue 2 are put, the buckle device 1 includes protecgulum 11, pressure lock shrapnel 12, button 13, push-button reset spring 14, stent 15, lock
Stops 16, tapered end skeleton 17 accept pilot seal part 18, lock tongue ejector spring 19, cylinder 101 and rear cover 102.
In the present embodiment, the protecgulum 11 and rear cover 102 can be integrated by ribs and fastening structure assembling, be assembled
Afterwards, receiving pressure lock shrapnel 12, button 13, push-button reset spring 14, stent are formed between the protecgulum 11 and rear cover 102
15th, the assembly space of latch 16, tapered end skeleton 17, undertaking pilot seal part 18 and lock tongue ejector spring 19.
In the present embodiment, the stent 15 is fixed on the outside of the tapered end skeleton 17, and the stent 15 is provided with for institute
State the activity space 150 of the slip of latch 16, it is preferable that as shown in figure 3, the madial wall of the activity space 150 of the stent 15
The upper position with 16 sliding contact of latch is provided with slide 153, reduces frictional resistance when latch 16 slides with this；
As shown in Figures 2 and 4, the one side of the latch 16 towards the tapered end skeleton 17 is provided with lock pawl 162, the tapered end bone
The locking entrance 170 for the lock pawl 162 disengaging is provided on frame 17, the lock tongue 2 includes tongue piece 21 and is arranged on tongue piece
Conduit 22 among 21 is formed with lock groove 210 on the tongue piece 21, when the lock tongue 2 is inserted into buckle device 1, the lock
Only entrance 170 is concordant with the lock groove 210；Preferably, as shown in Fig. 5 to Fig. 8, lock pawl 162 is two, in tapered end skeleton
17 both sides are respectively provided with there are two locking entrance 170, in this way, in the lock-out state of locker, two lock pawls 162 are distinguished
The locking for sequentially passing through the locking entrance 170 (i.e. the locking entrance 170 marked in Fig. 7) of one side, lock groove 210 and opposite side enters
170 (i.e. the locking entrances 170 marked in Fig. 8) of mouth, in this way, the lock-out state of locker is relatively stable.
In the present embodiment, as shown in Fig. 3, Fig. 4, Fig. 7 and Fig. 8, the top and bottom of the stent 15 are respectively formed with two
151 and two card base 152 of claw, corresponding position offers top groove 174 and engraves hole 175 respectively on the tapered end skeleton 17；
Two claws 151 and two card bases 152 are respectively engaged with two top grooves 174 and two and engrave in hole 175, and stent 15 is fixed to lock with this
On skull frame 17.Card base 152 has certain elasticity, and stress can open during assembling.
In the present embodiment, as shown in Figure 1, Figure 2 and shown in Figure 14, the cylinder 101 includes cylinder body 1011 and is connected on cylinder body
Efferent duct 1012, gas input side and the gas generating unit 3 of the cylinder body 1011 are tightly connected.Herein, gas fills
Putting can be gas generator or air pump.Gas generator, such as can be firework type gas generator.
In the present embodiment, the undertaking pilot seal part 18 is arranged to：Before the insertion of lock tongue 2, stop the lock pawl
162 move inward through the locking entrance 170, and when lock tongue 2 is inserted into, are moved under the promotion of lock tongue 2 to the direction of cylinder
It is dynamic, and then compress the lock tongue ejector spring 19 and release and the lock pawl 162 is moved inward through the locking entrance 170
Stop；So so that when lock tongue 2 is inserted in place, the lock pawl 162 is through the locking entrance 170 and is caught in described
In the lock groove 210 of lock tongue, to form the lockup state of locker；Also, in the lockup state, the undertaking pilot seal
One end of part 18 and the end face outside compression type of the efferent duct 1012 are tightly connected, described to accept the another of pilot seal part 18
End is tightly connected with the conduit 22.
In the present embodiment, the knob 13 is slidably connected with the tapered end skeleton 17, and the push-button reset spring 14 is used for
The reset of the knob 13；The knob 13 is described for the lock pawl 162 of the latch 16 to be driven to exit when pressed
Lock groove 210, it is described undertaking pilot seal part 18 after the lock pawl 162 of the latch exits the lock groove 210, according to
By the restoring force of the lock tongue ejector spring 19 lock tongue 2 is promoted outwards to pop up.
In the present embodiment, the pressure lock shrapnel 12 is used to apply one towards the locking entrance 170 to the latch 16
Power, so pressure lock shrapnel 12 push latch 16 to the locking entrance 170 always.Preferably, such as Fig. 2, Fig. 5 and Fig. 9 institute
Show, middle slide 161 is formed on the latch 16, and one end of the pressure lock shrapnel 12 acts on the middle slide 161
On, the other end is fixedly connected on the knob 13.In the present embodiment, as shown in figure 9, the other end of the pressure lock shrapnel 12
Tear not-go-end 121 is equipped among facet, flat hole 131 is provided on the 13 corresponding position of button, when tear not-go-end 121
After the flat hole 131 on button 13 is passed through with facet, tear not-go-end 121 is bounced so as to card automatically by its own resilient effect
On button 13, other end for pressing lock shrapnel 12 is fixed on button 13 with this.
Certainly, the fixed form that this fixed form also can be as shown in Figure 12 substitutes, i.e., in the another of the pressure lock shrapnel 12
Through hole 122 among on the facet at end is set, one mounting hole 123 is set with 122 corresponding position of through hole on button 13, then
Through through hole 122 and screw in mounting hole 123 with a tapping screw 124, with this will press the other end of lock shrapnel 12 be fixed on by
On button 13.The lock tongue 2 includes tongue piece 21 and is arranged on the conduit 22 of 21 centre of tongue piece, and lock groove is formed on the tongue piece 21
210。
In the present embodiment, the undertaking pilot seal part 18 is slidably arranged in the inner space of the tapered end skeleton 17,
The efferent duct 1012 is plugged on one end of the tapered end skeleton 17, and the lock tongue 2 is inserted into the other end of the tapered end skeleton 17.
Preferably, as shown in Fig. 2, Fig. 7 and Fig. 8, the both ends of the tapered end skeleton 17 are respectively formed with the first arcuate space 171 and second
Arcuate space 172, the efferent duct 1012 are plugged in first arcuate space 171, and the lock tongue 2 is inserted into second arch
In shape space 172.The shape of first arcuate space 171 and the second arcuate space 172 is led respectively with efferent duct 1012 and lock tongue
The shape of pipe 22 is adapted, thus it is possible, on the one hand, can ensure the bonding strength of tapered end skeleton 17 and cylinder, on the other hand, moreover it is possible to
Guiding function is risen to the insertion of lock tongue 2.In addition, the intermediate of the tapered end skeleton 17 forms hollow space 173, described accept is oriented to
The relatively described tapered end skeleton 17 in the hollow space 173 of sealing element 18 slides, and in the present embodiment, passes through following lugs
The relatively described tapered end in the hollow space 173 of undertaking pilot seal part 18 is realized in 183 slip in guide rail 176
Skeleton 17 slides.
In the present embodiment, as shown in Fig. 2 and Figure 13, the pilot seal part 18 of accepting includes integrally formed big sleeve
181 and small sleeve 182, seal groove 1013 is formed in the end face outside of the efferent duct 1012, is set in the seal groove 1013
Sealing ring 1014 is equipped with, in the lockup state of locker, the small sleeve 182 is inserted into the efferent duct 1012 and described small
The outer surface of sleeve 182 is bonded with the inner wall of the efferent duct 1012, and a side end face of the big sleeve 181 is pressed on described
In the end face outside of sealing ring 1014 and the efferent duct, to form one end of the undertaking pilot seal part 18 and the output
The compression type of the end face outside of pipe 1012 is tightly connected.Sealing ring 1014 is preferably O-ring seal, to ensure better seal
Energy.
Certainly, in a preferred embodiment, the big sleeve 181 is formed with prominent 182 1 side end face of small sleeve
Annular flange (not indicated in figure) is filled with forming slot root (not indicated in figure) between the big sleeve and small sleeve in lock
The lockup state put, the small sleeve 182 be inserted into the efferent duct 1012 and the outer surface of the small sleeve 182 with it is described
The inner wall fitting of efferent duct 1012, the slot root is pressed on the end face outside of the sealing ring 1014 and the efferent duct 1012
On, the medial surface ring set of the annular flange is on the lateral surface of efferent duct 1012, to form the undertaking pilot seal part
One end and the compression type of the end face outside of the efferent duct are tightly connected.
As shown in Fig. 2 and Figure 13, male cone (strobilus masculinus) 1811 is formed on another side end face of the big sleeve 181 for the present embodiment,
The inside of the conduit 22 of the lock tongue be formed with the 1811 matched inner conical surface of male cone (strobilus masculinus) (not indicated in figure), lock fill
The lockup state put, the male cone (strobilus masculinus) 1811 are fitted closely with the inner conical surface, to form the undertaking pilot seal part 18
The sealed connection of the other end and the conduit 22.Realize that sealing connects by processing two matched inner conical surfaces with male cone (strobilus masculinus)
It connects, it is possible to reduce the use of a seal member.Certainly, in other embodiments, male cone (strobilus masculinus) 1811 can also be by an insertion
The rubber parts of another side end face of the big sleeve 181 replaces.
Pass through above-mentioned sealing means so that in the lockup state of locker, efferent duct, accept pilot seal part and
Catheter interior forms a closed ventilation pipe, when vehicle collision occurs, gases at high pressure caused by gas generating unit
The ventilation pipe that can be formed through efferent duct, undertaking pilot seal part and conduit is flowed into air sac belt, is filled with this to air sac belt
Gas, so as to avoid or reduce injury of the safety belt to occupant.
In the present embodiment, one end of the lock tongue ejector spring 19 is supported on the cylinder 101, and the other end is supported on institute
It states and accepts on pilot seal part 18.Preferably, as shown in figure 14,1012 inside of efferent duct and the cylinder body 1011 adjoining
Position is provided with supporting table 1015, and the middle part of the supporting table 1015 is formed with venthole 1016, the lock tongue ejector spring 19
One end stretch into the efferent duct 1012 and be supported in the supporting table 1015, the other end is inserted in the small sleeve 182
And it is abutted with a side end face of the big sleeve 181.In this way, realize the assembling of lock tongue ejector spring 19.Certainly, in other realities
It applies in example, the other end of lock tongue ejector spring 19 can also be abutted against with the end face outside of small sleeve 182.
In the present embodiment, as shown in Figures 7 and 8, the tapered end skeleton 17 is formed by whole piece metal plate doubling, and is fixed on
On the cylinder 101.Since tapered end skeleton 17 is formed by whole piece metal plate doubling so that the tapered end skeleton 17 has the intensity high
Feature, also, completion is pre-machined in the various holes (such as locking entrance 170 and engrave hole 175) on tapered end skeleton 17, by right
The alignment in various holes can be realized in folding, in this way, assembling is simpler.
In the present embodiment, as shown in Fig. 6 and Figure 10, inclined-plane 163 is formed on the latch 16, is set on the button 13
Paired voussoir 132 is equipped with, the voussoir 132 is promoted when the button 13 is pressed to be moved outside the inclined-plane 163, to push away
The lock pawl 162 for moving the latch 16 is pierced by the locking entrance 170.
In the present embodiment, as shown in Fig. 7, Fig. 8 and Figure 13, the both sides of the tapered end skeleton 17 are respectively formed after doubling
For guide rail 176；The both sides for accepting pilot seal part 18 are respectively arranged with a lug 183, and the lug 183 is slidably arranged in
In the guide rail 176.
In the present embodiment, as shown in Fig. 2, Fig. 6 and Figure 13, the lock pawl 162 is formed with the first wedge surface 1621, described convex
The second paired wedge surface 1831 is formed on ear 183, second wedge surface 1831 is after lock tongue 2 outwards pop-up described in promotion
It moves outside first wedge surface 1621, is moved with promoting outside the lock pawl 162 of the latch 16.In this way, when knob 13 is pressed, it is described
Voussoir 132 is promoted and moved outside the inclined-plane 163, and second wedge surface 1831 is promoted and moved outside first wedge surface 1621, in this way, locking
The lock pawl 162 of block 16 is outer under the common promotion of voussoir 132 and lug 183 to be moved, in this way, unlock is more smooth.
In the present embodiment, as shown in Fig. 7, Figure 10 and Figure 11, the both sides of the edge of the button 13 are each provided with two snap fingers
133, the snap finger 133 is slidably arranged in the guide rail 176, and the cunning of the button 13 and the tapered end skeleton 17 is realized with this
Dynamic connection.
In the present embodiment, as shown in Fig. 3, Fig. 6, the both sides of the latch 16 are formed there are two positioning protrusion 164, described
Two positioning protrusion 164 slide two outer ledges 155 for being fitted in the stent 15.In such manner, it is possible to the slip to latch 16
It is oriented to, avoids sliding deviation.
In the present embodiment, as shown in Figures 10 and 11, button bit 134 is formed on the button 13, is in locker
During lockup state, the button bit 134 is abutted with the both sides corner 165 of the latch 16, to keep the steady of the latch 16
It is fixed, so that the lockup state of locker is reliable and stable.
In the present embodiment, as shown in Fig. 4 and Figure 11, the centre position of the inside of the button 13 is provided with the first pillar
135, the centre position of the stent 15 has been oppositely disposed the second pillar 154, the both ends difference of the push-button reset spring 14
It is connected on 135 and second pillar 154 of the first pillar.Compared in the prior art using the two push-button reset bullets in left and right
Spring only uses a push-button reset spring 14, it is possible to reduce amount of parts, and reduce assembly difficulty.
The operation principle of the present embodiment is as follows：
Locking process：Lock tongue 2 is inserted into tapered end skeleton 17, promotes the undertaking pilot seal part 18, pilot seal part 18
Lock tongue ejector spring 19 is compressed, the locking entrance is passed through to the lock pawl 162 in this way, accepting pilot seal part 18 and releasing
170 stops moved inward, when lock tongue 2 is inserted into, the lock pawl 162 is under the active force of pressure lock shrapnel, through the lock
It only entrance 170 and is caught in the lock groove 210 of the lock tongue, and stops the reply for accepting pilot seal part 18, to form lock
The lockup state of device.
Releasing process：Button 13 is pressed, the voussoir 132 on button 13 promotes the inclined-plane 163 of latch, such latch 16
Outer shifting so that the lock pawl of latch 16 leaves the lock groove 210 on lock tongue, at this point, latch 16 no longer stops that undertaking is oriented to
The reply of sealing element 18 in this way, accepting pilot seal part 18 under the active force of lock tongue ejector spring 19, on the one hand pushes away lock tongue
Go out, on the other hand, the second wedge surface 1831 for accepting the lug 183 of pilot seal part 18 promotes the first wedge surface of the lock pawl
It is moved outside 1621, is moved in this way, latch 16 is outer under the common promotion of voussoir 132 and lug 183, realize unlock.
Inflatable seat belt locker according to the above embodiment of the present invention, in structure design, has taken into account high pressure
Gas stablizes conveying and locking and the smooth work of unlocking function wherein, is conducive to the popularization of inflatable seat belt, also,
When lock tongue is inserted in place when locker board lockup state (i.e.), the outer of one end of pilot seal part and the efferent duct of cylinder is accepted
Side end face compression type is tightly connected, thus, on the one hand, the sealing caused by the sealing part abrasion at the position can be avoided to lose
Effect；On the other hand, accepting the assembly precision of the efferent duct of pilot seal part and cylinder can reduce, so that it is close to accept guiding
The sealing assembling of the efferent duct of sealing and cylinder is more prone to.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (17)
- A kind of 1. inflatable seat belt locker, including buckle device and lock tongue, which is characterized in that the buckle device bag Include protecgulum, pressure lock shrapnel, button, push-button reset spring, stent, latch, tapered end skeleton, undertaking pilot seal part, lock tongue top Go out spring, cylinder and rear cover, wherein,The protecgulum is fixedly connected with rear cover, is formed between the protecgulum and rear cover and is accommodated the pressure lock shrapnel, button, button Resetting spring, stent, latch, tapered end skeleton, the assembly space for accepting pilot seal part and lock tongue ejector spring；The stent is fixed on the outside of the tapered end skeleton, and the stent is provided with the activity space slided for the latch； The one side of the latch towards the tapered end skeleton is provided with lock pawl, is provided on the tapered end skeleton for the lock pawl The locking entrance of disengaging, the lock tongue include tongue piece and the conduit being arranged among tongue piece, lock groove are formed on the tongue piece, When the lock tongue is inserted into buckle device, the locking entrance is concordant with the lock groove；The pressure lock shrapnel is used to apply the power towards the locking entrance to the latch；The cylinder includes cylinder body and the efferent duct being connected on cylinder body, the gas input side and gas generating unit of the cylinder body It is tightly connected；The undertaking pilot seal part is slidably arranged in the inner space of the tapered end skeleton, and the efferent duct is plugged on described One end of tapered end skeleton, the lock tongue are inserted into the other end of the tapered end skeleton；One end of the lock tongue ejector spring is supported on On the cylinder, the other end is supported on the undertaking pilot seal part；Before lock tongue insertion, the undertaking pilot seal part stops that the lock pawl is moved inward through the locking entrance； When lock tongue is inserted into, the undertaking pilot seal part compresses the lock tongue ejector spring under the promotion of lock tongue and releases to described Lock pawl passes through the stop that the locking entrance moves inward, so that the lock pawl is through the locking entrance and is caught in In the lock groove of the lock tongue, to form the lockup state of locker；Also, in the lockup state, the undertaking is oriented to close One end of sealing and the end face outside compression type of the efferent duct are tightly connected, the other end for accepting pilot seal part and institute State conduit sealed connection；The button is slidably connected with the tapered end skeleton, and the push-button reset spring is used for the reset of the button；It is described Button is used to drive the lock pawl of the latch to exit the lock groove when pressed, and the undertaking pilot seal part exists The lock pawl of the latch is exited after the lock groove, promotes lock tongue outside by the restoring force of the lock tongue ejector spring Pop-up.
- 2. inflatable seat belt locker according to claim 1, which is characterized in that the undertaking pilot seal part Including integrally formed big sleeve and small sleeve, seal groove is formed in the end face outside of the efferent duct, in the seal groove Be provided with sealing ring, in the lockup state of locker, the small sleeve be inserted into the efferent duct and the small sleeve it is outer Side surface is bonded with the inner wall of the efferent duct, and a side end face of the big sleeve is pressed on the sealing ring and the efferent duct End face outside on, sealed with the compression type for forming the end face outside of one end and the efferent duct of the undertaking pilot seal part Connection.
- 3. inflatable seat belt locker according to claim 1, which is characterized in that the undertaking pilot seal part Including integrally formed big sleeve and small sleeve, seal groove is formed in the end face outside of the efferent duct, in the seal groove Be provided with sealing ring, the big sleeve be formed with the annular flange of prominent one side end face of small sleeve with the big sleeve with Slot root is formed between small sleeve, in the lockup state of locker, the small sleeve is inserted into the efferent duct and described small The outer surface of sleeve is bonded with the inner wall of the efferent duct, and the slot root is pressed on the sealing ring and the efferent duct In end face outside, the medial surface ring set of the annular flange is on the lateral surface of efferent duct, to form the undertaking pilot seal One end of part and the compression type of the end face outside of the efferent duct are tightly connected.
- 4. the inflatable seat belt locker according to Claims 2 or 3, which is characterized in that the big sleeve it is another Be formed with male cone (strobilus masculinus) on one side end face, the inside of the conduit of the lock tongue be formed with the matched inner conical surface of the male cone (strobilus masculinus), The lockup state of locker, the male cone (strobilus masculinus) are fitted closely with the inner conical surface, to form the undertaking pilot seal part The sealed connection of the other end and the conduit.
- 5. the inflatable seat belt locker according to Claims 2 or 3, which is characterized in that inside the efferent duct The cylinder body adjoining position is provided with supporting table, venthole is formed in the middle part of the supporting table, the lock tongue ejects bullet One end of spring is stretched into the efferent duct and is supported in the supporting table, the other end be inserted in the small sleeve and with it is described big One side end face of sleeve abuts.
- 6. inflatable seat belt locker according to claim 1, which is characterized in that the tapered end skeleton is whole by one Piece metal plate doubling forms, and is fixed on the cylinder.
- 7. inflatable seat belt locker according to claim 1, which is characterized in that the both ends of the tapered end skeleton The first arcuate space and the second arcuate space are respectively formed with, the efferent duct is plugged in first arcuate space, described Lock tongue is inserted into second arcuate space.
- 8. inflatable seat belt locker according to claim 7, which is characterized in that the centre of the tapered end skeleton Hollow space is formed, the undertaking pilot seal part relatively described tapered end skeleton in the hollow space slides.
- 9. inflatable seat belt locker according to claim 6, which is characterized in that the both sides of the tapered end skeleton Guide rail is respectively formed as, the both sides for accepting pilot seal part are respectively arranged with a lug, and the lug is slidably arranged in institute It states in guide rail.
- 10. inflatable seat belt locker according to claim 9, which is characterized in that the lock pawl is formed with First wedge surface is formed with the second paired wedge surface on the lug, and second wedge surface promotes after lock tongue outwards pops up It moves outside first wedge surface, is moved with promoting outside the lock pawl of the latch.
- 11. inflatable seat belt locker according to claim 9, which is characterized in that the two sides of the button Edge is each provided with two snap fingers, and the snap finger is slidably arranged in the guide rail, to realize the button and the tapered end skeleton Be slidably connected.
- 12. the inflatable seat belt locker according to claim 1 or 10, which is characterized in that on the latch Inclined-plane is formed with, paired voussoir is provided on the button, described in the voussoir is promoted when the button is pressed It is moved outside inclined-plane, the locking entrance is pierced by with the lock pawl for promoting the latch.
- 13. inflatable seat belt locker according to claim 1, which is characterized in that the both sides of the latch Positioning protrusion is formed with, the positioning protrusion slip is fitted in the outer ledge of the stent.
- 14. inflatable seat belt locker according to claim 1, which is characterized in that the activity of the stent is empty Between madial wall on the position of the latch sliding contact is provided with slide.
- 15. inflatable seat belt locker according to claim 1, which is characterized in that be formed on the button Button bit, when locker is in lockup state, the button bit is abutted with the both sides corner of the latch, to keep the lock The stabilization of stops.
- 16. inflatable seat belt locker according to claim 1, which is characterized in that formed on the latch There is middle slide, one end of the pressure lock shrapnel is acted in the middle slide, and the other end is fixedly connected on the button On.
- 17. inflatable seat belt locker according to claim 1, which is characterized in that the inside of the button Centre position is provided with the first pillar, and the centre position of the stent has been oppositely disposed the second pillar, the push-button reset bullet The both ends of spring are connected on first pillar and the second pillar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410326460.3A CN105231600B (en) | 2014-07-10 | 2014-07-10 | Inflatable seat belt locker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410326460.3A CN105231600B (en) | 2014-07-10 | 2014-07-10 | Inflatable seat belt locker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105231600A CN105231600A (en) | 2016-01-13 |
| CN105231600B true CN105231600B (en) | 2018-05-29 |
Family
ID=55029651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410326460.3A Active CN105231600B (en) | 2014-07-10 | 2014-07-10 | Inflatable seat belt locker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105231600B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5445411A (en) * | 1991-10-21 | 1995-08-29 | Takata Corporation | Inflatable seat belt apparatus |
| EP0963885A1 (en) * | 1998-06-09 | 1999-12-15 | Takata Corporation | Air belt system |
| US6220626B1 (en) * | 1998-03-13 | 2001-04-24 | Honda Giken Kogyo Kabushiki Kaisha | Air belt apparatus |
| EP0901944B1 (en) * | 1997-09-02 | 2004-04-28 | Takata Corporation | Inflatable safety belt device |
| CN102066159A (en) * | 2008-06-20 | 2011-05-18 | 福特全球技术公司 | Inflatable seat belt system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4527268B2 (en) * | 2000-03-02 | 2010-08-18 | タカタ株式会社 | Locking device for air belt |
-
2014
- 2014-07-10 CN CN201410326460.3A patent/CN105231600B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5445411A (en) * | 1991-10-21 | 1995-08-29 | Takata Corporation | Inflatable seat belt apparatus |
| EP0901944B1 (en) * | 1997-09-02 | 2004-04-28 | Takata Corporation | Inflatable safety belt device |
| US6220626B1 (en) * | 1998-03-13 | 2001-04-24 | Honda Giken Kogyo Kabushiki Kaisha | Air belt apparatus |
| EP0963885A1 (en) * | 1998-06-09 | 1999-12-15 | Takata Corporation | Air belt system |
| CN102066159A (en) * | 2008-06-20 | 2011-05-18 | 福特全球技术公司 | Inflatable seat belt system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105231600A (en) | 2016-01-13 |
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