CN208006775U - A kind of children's seat energy absorption device adaptive with impact velocity - Google Patents
A kind of children's seat energy absorption device adaptive with impact velocity Download PDFInfo
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- CN208006775U CN208006775U CN201820324381.2U CN201820324381U CN208006775U CN 208006775 U CN208006775 U CN 208006775U CN 201820324381 U CN201820324381 U CN 201820324381U CN 208006775 U CN208006775 U CN 208006775U
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Abstract
The utility model is related to a kind of children's seat energy absorption devices adaptive with impact velocity, it include the main body rack on children's seat, the the first honeycomb energy-absorbing component and the second honeycomb energy-absorbing component being slidably mounted on main body rack, the movable pulley mechanism being slidably mounted on main body rack, around the leash of movable pulley, safety belt；One end of leash is connected on the first honeycomb energy-absorbing component, the other end of leash is connected on the second honeycomb energy-absorbing component, safety belt is connected on movable pulley mechanism, and the initial peak value load of the first honeycomb energy-absorbing component is less than the initial peak value load of the second honeycomb energy-absorbing component.This energy absorption device adapts to different impact velocitys, effectively reduces the child passenger shock loading suffered in collision, improves Safety of child passenger, belongs to child safety seat field.
Description
Technical field
The utility model is related to child safety seat field more particularly to a kind of child seats adaptive with impact velocity
Chair energy absorption device.
Background technology
With quickly increasing year by year for social automobile quantity, automotive safety has become the important research in automotive research field
Direction, and the protection of child passenger has received more and more attention and has paid attention in collision process, the safety by bus of child passenger
Have become the important topic of automotive safety Journal of Sex Research.Child passenger is opposite to be grown up, and the ratio and proportion of parts of body have
Prodigious difference such as the 30% of child passenger head percentage of liveweight, and is grown up only 6%, and it is opposite that this directly results in child passenger
The centre of body weight higher of adult, the ability that external impact is resisted in collision accident is worse, in addition what children member itself developed
Not exclusively, neck and body ligament are more weak, these more directly increase child passenger probability injured in collision process.
And child safety seat plays an important role in safety of the protection children member in automobile collision procedure, traditional children peace
Full seat relies primarily on restraint strap system and child passenger is strapped in seat, and the active position of safety belt is chest, in addition youngster
Since inertia can turn forward, excessive impact acceleration can cause children fatal harm on virgin head, therefore, reduce collision
When children suffered by acceleration play an important role to the protection of children member.By in safety belt and child safety seat
It is one of the maximally efficient means to solve the above problems and mode that a kind of energy absorbing device is arranged between ontology.
Although there is now safety seat by the way that energy absorbing device is arranged between safety belt and child safety seat ontology,
But its energy absorption device is using impact energy-absorbing mode outside single layer face.This energy absorption device, initial peak value load and acceleration are spent
Height is not a kind of ideal endergonic structure.
Utility model content
For the technical problems in the prior art, the purpose of this utility model is：One kind is provided and adapts to different punchings
It hits speed, effective reduction child passenger shock loading suffered in collision, improve the fast with colliding of Safety of child passenger
Spend adaptive child safety seat energy absorption device.
In order to achieve the above object, the utility model adopts the following technical solution：
A kind of children's seat energy absorption device adaptive with impact velocity, includes the main body branch on children's seat
Frame, the first honeycomb energy-absorbing component being slidably mounted on main body rack and the second honeycomb energy-absorbing component, are slidably mounted at master
Movable pulley mechanism on body support frame bypasses the leash of movable pulley, safety belt；One end of leash is connected to the first honeycomb energy-absorbing
On component, the other end of leash is connected on the second honeycomb energy-absorbing component, and safety belt is connected on movable pulley mechanism, the first bee
The initial peak value load of nest energy-absorbing component is less than the initial peak value load of the second honeycomb energy-absorbing component.
It is further：Main body rack includes symmetrically arranged two pieces of support plates, connecting plate, symmetrically arranged two struts；
The side of connecting plate is connect with the end of two pieces of support plates, and the other side of connecting plate is connect with the end of two struts, is set on support plate
It is useful for the first sliding groove of the first honeycomb energy-absorbing component slippage and the second sliding slot for the second honeycomb energy-absorbing component slippage, strut
It is equipped with the third sliding slot for movable pulley sliding.
It is further：First honeycomb energy-absorbing component and the second honeycomb energy-absorbing component include compressional axis, are sleeved on compression
Compression blocks on axis, two open honeycomb boxes, honeycomb, frame；Cellular one end is placed in a honeycomb box, cellular another
One end is placed in another honeycomb box, and one of honeycomb box is connected to close to compression blocks, another honeycomb box on connecting plate,
Compressional axis is mounted on frame, and support plate and connecting plate are located at the inside of frame；The compressional axis of first honeycomb energy-absorbing component is worn
The first sliding groove is crossed, the compressional axis of the second honeycomb energy-absorbing component passes through second sliding slot, one end of leash to be connected to the suction of the first honeycomb
On the frame of energy component, the other end of leash is connected on the frame of the second honeycomb energy-absorbing component.
It is further：Frame is equipped with connecting rod, and the end of leash is connected in connecting rod.
It is further：Movable pulley mechanism includes the axis of traction across third sliding slot, the bearing being sleeved on axis of traction, set
Movable pulley on bearing, U-shaped piece be sleeved on axis of traction；Safety belt is connected on U-shaped piece.
It is further：Compressional axis is equipped with split washer, and split washer is located at the outside of frame.
It is further：Compression blocks include integrally formed compression plate and with holes piece, and one of honeycomb box is close to pressure
Contracting plate, compressional axis pass through with holes piece.
It is further：Energy absorption device further includes fixing axle, and the fixing axle of two pieces of support plates is passed through to be mounted on children's seat.
It is further：The honeycomb of the honeycomb of first honeycomb energy-absorbing component and the second honeycomb energy-absorbing component is by with negative pool
Pine forms than the cellular of effect, and the cross sectional shape of cellular is indent hexagon.
It is further：The cellular thickness of first honeycomb energy-absorbing component is less than the cellular thickness of the second honeycomb energy-absorbing component
Degree, the angle of the cellular of the first honeycomb energy-absorbing component are less than the angle of the cellular of the second honeycomb energy-absorbing component.
Generally speaking, the utility model has the following advantages that：
1, impact kinetic energy when colliding is passed through cellular plasticity by the utility model using upper layer and lower layer classification energy-absorbing component
Deformation dissipates, and solves the problems, such as that traditional single layer energy absorption device initial peak value load is excessively high, acceleration is excessive, to improve
Security performance of the child passenger in collision.
2, the utility model is novel in design, upper layer and lower layer energy-absorbing component is connected by using movable pulley and leash, no
Same impact velocity, what upper layer and lower layer energy-absorbing component can be adaptive automatically according to the cellular thickness and impact velocity of itself
State and the time for adjusting upper layer and lower layer honeycomb energy-absorbing, realize reduces the peak load of collision starting stage and carries as far as possible
High subsequent continuous energy-absorbing, the self-adaptive features of impact velocity have with respect to energy-absorbing outside existing equipment single layer face significantly to be changed
It is kind.
3, the utility model is designed reasonably, movable pulley interlock upper layer and lower layer energy-absorbing component respectively, two layers cellular configuration
Thickness is inconsistent, realizes that the adaptive energy-absorbing of two kinds of endergonic structures is adjusted, to effectively weaken in collision safety belt to children
Impact caused by chest, protects the safety of children member.
Description of the drawings
Fig. 1 is the stereogram of this energy absorption device.
Fig. 2 is the front view of this energy absorption device.
Fig. 3 is the vertical view of this energy absorption device.
Fig. 4 is the structural schematic diagram of main body rack.
Fig. 5 is the structural schematic diagram of the first honeycomb energy-absorbing component and the second honeycomb energy-absorbing component.
Fig. 6 is the power and displacement curve schematic diagram of honeycomb energy-absorbing component.
Fig. 7 is cellular cross-sectional view.
Fig. 8 is the cross-sectional view of cellular.
Specific implementation mode
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
It is now attached to what is occurred in Figure of description for the ease of uniformly checking each reference numeral inside Figure of description
Icon note is unitedly described as follows：
1 is main body support frame, and 2 be fixing axle, and 3 be compression blocks, and 4 be honeycomb box, and 5 be honeycomb, and 6 be frame, and 7 be traction
Band, 8 be movable pulley, and 9 be split washer, and 10 be U-shaped piece, and 11 be connecting rod, and 12 be safety belt, and 13 be axis of traction, and 14 be compression
Axis, 1-1 are support plate, and 1-2 is connecting plate, and 1-3 is strut, and 1-4 is the first sliding groove, and 1-5 is second sliding slot, and 1-6 is third sliding slot,
3-1 is with holes piece, and 3-2 is compression plate, and 5-1 is cellular.
For sake of convenience, now hereafter described orientation is described as follows：Hereafter described front-rear direction and Fig. 2 itself up and down
Upper lower right left direction it is consistent.
In conjunction with shown in Fig. 1 to Fig. 8, a kind of children's seat energy absorption device adaptive with impact velocity, including be mounted on
Main body rack on children's seat, the first honeycomb energy-absorbing component being slidably mounted on main body rack and the second honeycomb energy-absorbing group
Part, the movable pulley mechanism being slidably mounted on main body rack bypass the leash of movable pulley, safety belt.Main body rack is fixed
On children's seat, the first honeycomb energy-absorbing component and the second honeycomb energy-absorbing component can be slided with respect to main body rack, and movable pulley can
It is slided with opposite main body rack.One end of leash is connected on the first honeycomb energy-absorbing component, and the other end of leash is connected to
On second honeycomb energy-absorbing component, safety belt is connected on movable pulley mechanism, and the initial peak value load of the first honeycomb energy-absorbing component is low
In the initial peak value load of the second honeycomb energy-absorbing component.
In conjunction with shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, main body rack includes symmetrically arranged two pieces of support plates, connecting plate, symmetrically sets
Two struts set.The structure of two pieces of support plates is the same and is symmetrical, and the structure of two struts is the same and is phase
Symmetrically.The side of connecting plate is connect with the end of two pieces of support plates, and the other side of connecting plate is connect with the end of two struts, branch
The both sides of plate and strut separation connecting plate.Support plate is equipped with for the first sliding groove of the first honeycomb energy-absorbing component slippage and for the
The second sliding slot of two honeycomb energy-absorbing component slippages, strut are equipped with the third sliding slot for movable pulley sliding.
In conjunction with shown in Fig. 1, Fig. 2, Fig. 3, Fig. 5, the first honeycomb energy-absorbing component and the second honeycomb energy-absorbing component include compression
Axis, the compression blocks being sleeved on compressional axis, two open honeycomb boxes, honeycomb, frame.Cellular one end is placed in a honeycomb
In box, the cellular other end is placed in another honeycomb box, and two honeycomb boxes are covered each by cellular both ends.The honeycomb of back
Box is connected to close to compression blocks, honeycomb box in front on connecting plate, and compressional axis is mounted on frame, and compressional axis is located at frame
Rear end, compressional axis is located at the back of honeycomb box.Support plate and connecting plate are located at the inside of frame, honeycomb box, honeycomb, compression blocks
It is placed in the interior zone that support plate and connecting plate surround, support plate and connecting plate are placed in the inside of frame from top to bottom, from upper past
Under see, support plate and connecting plate are positioned at the inside of frame.The compressional axis of first honeycomb energy-absorbing component passes through the first sliding groove simultaneously
It can be slided in the first sliding groove, the compressional axis of the second honeycomb energy-absorbing component passes through second sliding slot and can be slided in second sliding slot
It is dynamic.One end of leash is connected on the frame of the first honeycomb energy-absorbing component, leash bypass movable pulley after, leash it is another
One end is connected on the frame of the second honeycomb energy-absorbing component.
Frame is equipped with connecting rod, and two ends of leash are connected in the connecting rod of two frames.
Movable pulley mechanism includes the axis of traction across third sliding slot, and the bearing being sleeved on axis of traction is sleeved on bearing
Movable pulley, U-shaped piece be sleeved on axis of traction；Movable pulley is placed in U-shaped piece of inside, and safety belt is connected on U-shaped piece.
Compressional axis is equipped with split washer, and split washer is located at the outside of frame.Split washer also is provided on axis of traction,
Split washer is located at the outside of strut.
Compression blocks include integrally formed compression plate and with holes piece, and one of honeycomb box is close to compression plate, compressional axis
Across with holes piece.
Energy absorption device further includes fixing axle, and the fixing axle of two pieces of support plates is passed through to be mounted on children's seat.
The honeycomb of the honeycomb of first honeycomb energy-absorbing component and the second honeycomb energy-absorbing component is by with Negative poisson's ratio
Cellular forms, and the cross sectional shape of cellular is indent hexagon.Cellular is in the tubular shape of strip, and then multiple cellulars form together
As honeycomb, honeycomb are existing technologies.When the cross sectional shape of cellular is indent hexagon, i.e., cellular is imitated with negative poisson's ratio
It answers, in this way when squeezing honeycomb, honeycomb is recessed inwardly.When using smaller force compresses honeycomb, honeycomb will not compress change
Shape, with the increase of strength, when power reaches a certain level, honeycomb starts compressive deformation, and a degree of power is referred to as initial
Peak load, after honeycomb starts compressive deformation, as shown in fig. 6, the load that honeycomb is subject to can rapidly drop to one in a short time
Determine degree.Honeycomb is thicker, and initial peak value load is bigger, and initial peak value load should not be too large, and otherwise the brain of people can can't stand.
The cellular thickness of first honeycomb energy-absorbing component is less than the cellular thickness of the second honeycomb energy-absorbing component, the first honeycomb
The angle of the cellular of energy-absorbing component is less than the angle of the cellular of the second honeycomb energy-absorbing component.As shown in Figure 7 and Figure 8, cellular thickness
Degree is the pipe thickness of the cellular of tubular shape, and the angle of cellular as shown in figure 8, α is the angle of cellular, determine by cellular angle
Justice is capable known in the industry.
The principle of energy absorption device is described as follows below：When automobile is when colliding, children since inertia can turn forward,
Safety belt can move forward, and the pulling force that safety belt generates drives movable pulley to be slided in third by U-shaped piece of pulling axis of traction, axis of traction
Forward slip on slot, movable pulley move forward, then pull frame to move forward by leash, then compressional axis is in sliding slot
It is moved forward in (the first sliding groove and second sliding slot), to which compression blocks squeeze the honeycomb box of back, and then honeycomb is squeezed, to real
Show the compression of the first honeycomb energy-absorbing component and the second honeycomb energy-absorbing component, generates energy-absorbing.First honeycomb energy-absorbing component and second
Honeycomb energy-absorbing component is upper and lower layered arrangement.Inconsistent due to upper layer and lower layer honeycomb thickness, energy-absorbing will be first relatively thin
Honeycomb (the first honeycomb energy-absorbing component) start, with the progress of compression, the compressive load suffered by relatively thin honeycomb has been more than another
When the initial peak value load of one thicker honeycomb (the second honeycomb energy-absorbing component), thicker honeycomb will also begin participating in compression and become
Shape, i.e., at this point, relatively thin honeycomb and thicker honeycomb cooperatively participate in compressive deformation.The suction of the total of this energy absorption device
Can have impact velocity adaptivity, opposite existing structure that there is better child passenger protective value.
In collision, energy-absorbing starts in relatively thin honeycomb first, and the relatively thick honeycomb of relatively thin honeycomb has lower
Initial peak value load, so as to effectively reduce load when colliding initial, and thicker honeycomb, only when impact velocity compared with
Greatly, when the compressing force that relatively thin honeycomb is subject to is more than thicker cellular initial peak value load, thicker honeycomb can just participate in deforming
Energy-absorbing.Exactly above-mentioned characteristic is utilized to realize the continuously and automatically regulatory function of endergonic process by this energy absorption device, reach
Reduce the effect of continuous energy-absorbing while initial spike power, and can adaptive different impact velocity, energy-absorbing is with respect to single layer
Honeycomb energy-absorbing has better effect.
Above-described embodiment is the preferable embodiment of the utility model, but the embodiment of the utility model is not by above-mentioned
The limitation of embodiment, under other any Spirit Essences and principle without departing from the utility model made by change, modify, replace
In generation, simplifies combination, should be equivalent substitute mode, is included within the scope of protection of the utility model.
Claims (10)
1. a kind of children's seat energy absorption device adaptive with impact velocity, it is characterised in that：Including being mounted on children's seat
On main body rack, the first honeycomb energy-absorbing component being slidably mounted on main body rack and the second honeycomb energy-absorbing component, sliding
Formula is mounted on the movable pulley mechanism on main body rack, bypasses the leash of movable pulley, safety belt；One end of leash is connected to
On one honeycomb energy-absorbing component, the other end of leash is connected on the second honeycomb energy-absorbing component, and safety belt is connected to movable pulley machine
On structure, the initial peak value load of the first honeycomb energy-absorbing component is less than the initial peak value load of the second honeycomb energy-absorbing component.
2. a kind of children's seat energy absorption device adaptive with impact velocity described in accordance with the claim 1, it is characterised in that：
Main body rack includes symmetrically arranged two pieces of support plates, connecting plate, symmetrically arranged two struts；The side of connecting plate and two pieces of branch
The end of plate connects, and the other side of connecting plate is connect with the end of two struts, and support plate, which is equipped with, is used for the first honeycomb energy-absorbing group
The first sliding groove of part sliding and the second sliding slot for the second honeycomb energy-absorbing component slippage, strut is equipped with to be slided for movable pulley
Third sliding slot.
3. a kind of children's seat energy absorption device adaptive with impact velocity according to claim 2, it is characterised in that：
First honeycomb energy-absorbing component and the second honeycomb energy-absorbing component include compressional axis, and the compression blocks being sleeved on compressional axis, two spacious
The honeycomb box of mouth, honeycomb, frame；Cellular one end is placed in a honeycomb box, and the cellular other end is placed in another honeycomb
In box, one of honeycomb box is connected to close to compression blocks, another honeycomb box on connecting plate, and compressional axis is mounted on frame
On, support plate and connecting plate are located at the inside of frame；The compressional axis of first honeycomb energy-absorbing component passes through the first sliding groove, the second honeycomb
The compressional axis of energy-absorbing component passes through second sliding slot, and one end of leash is connected on the frame of the first honeycomb energy-absorbing component, leads
The other end of leader tape is connected on the frame of the second honeycomb energy-absorbing component.
4. a kind of children's seat energy absorption device adaptive with impact velocity described in accordance with the claim 3, it is characterised in that：
Frame is equipped with connecting rod, and the end of leash is connected in connecting rod.
5. a kind of children's seat energy absorption device adaptive with impact velocity according to claim 2, it is characterised in that：
Movable pulley mechanism includes the axis of traction across third sliding slot, the bearing being sleeved on axis of traction, the movable pulley being sleeved on bearing,
U-shaped piece be sleeved on axis of traction；Safety belt is connected on U-shaped piece.
6. a kind of children's seat energy absorption device adaptive with impact velocity described in accordance with the claim 3, it is characterised in that：
Compressional axis is equipped with split washer, and split washer is located at the outside of frame.
7. a kind of children's seat energy absorption device adaptive with impact velocity described in accordance with the claim 3, it is characterised in that：
Compression blocks include integrally formed compression plate and with holes piece, and one of honeycomb box is close to compression plate, and compressional axis passes through with holes
Block.
8. a kind of children's seat energy absorption device adaptive with impact velocity according to claim 2, it is characterised in that：
Energy absorption device further includes fixing axle, and the fixing axle of two pieces of support plates is passed through to be mounted on children's seat.
9. a kind of children's seat energy absorption device adaptive with impact velocity described in accordance with the claim 1, it is characterised in that：
The honeycomb of the honeycomb of first honeycomb energy-absorbing component and the second honeycomb energy-absorbing component is made of the cellular with Negative poisson's ratio,
The cross sectional shape of cellular is indent hexagon.
10. a kind of children's seat energy absorption device adaptive with impact velocity, feature exist according to claim 9
In：The cellular thickness of first honeycomb energy-absorbing component is less than the cellular thickness of the second honeycomb energy-absorbing component, the first honeycomb energy-absorbing
The angle of the cellular of component is less than the angle of the cellular of the second honeycomb energy-absorbing component.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820324381.2U CN208006775U (en) | 2018-03-09 | 2018-03-09 | A kind of children's seat energy absorption device adaptive with impact velocity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820324381.2U CN208006775U (en) | 2018-03-09 | 2018-03-09 | A kind of children's seat energy absorption device adaptive with impact velocity |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108312915A (en) * | 2018-03-09 | 2018-07-24 | 华南理工大学 | A kind of children's seat energy absorption device adaptive with impact velocity |
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2018
- 2018-03-09 CN CN201820324381.2U patent/CN208006775U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108312915A (en) * | 2018-03-09 | 2018-07-24 | 华南理工大学 | A kind of children's seat energy absorption device adaptive with impact velocity |
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