WO2020206842A1 - 儿童安全座椅头枕高度及侧翼宽度同步调节机构 - Google Patents

儿童安全座椅头枕高度及侧翼宽度同步调节机构 Download PDF

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Publication number
WO2020206842A1
WO2020206842A1 PCT/CN2019/092639 CN2019092639W WO2020206842A1 WO 2020206842 A1 WO2020206842 A1 WO 2020206842A1 CN 2019092639 W CN2019092639 W CN 2019092639W WO 2020206842 A1 WO2020206842 A1 WO 2020206842A1
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WO
WIPO (PCT)
Prior art keywords
connecting arm
screw
side wing
child safety
safety seat
Prior art date
Application number
PCT/CN2019/092639
Other languages
English (en)
French (fr)
Inventor
钱建洪
裘杭建
陈凯新
Original Assignee
杭州乐檬实业有限公司
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Filing date
Publication date
Application filed by 杭州乐檬实业有限公司 filed Critical 杭州乐檬实业有限公司
Publication of WO2020206842A1 publication Critical patent/WO2020206842A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
    • B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
    • B60N2/2851—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle provided with head-rests
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/26—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles for children
    • B60N2/28—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle
    • B60N2/2872—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle provided with side rests

Definitions

  • the invention relates to the field of child safety seats, in particular to a synchronous adjustment mechanism for the height of the headrest and the width of the side wings of the child safety seat.
  • the position adjustment of the headrest and side wings of the child safety seat not only affects the comfort of the child's riding, but also affects the life safety of the child. Therefore, the child safety seat needs to be provided with an adjustment mechanism that can simultaneously adjust the width of the side wings and the height of the headrest to adapt to children of different ages and body types.
  • the Chinese patent with the Chinese patent number CN207631041U discloses a synchronous adjustment structure for a child safety seat.
  • Two transverse sliding grooves are symmetrically provided on the left and right sides of the backrest body.
  • the corresponding guides of the two transverse connecting arms are slidably mounted on
  • two sets of vertically extending guide grooves are symmetrically opened on the backrest body.
  • the two sets of guide grooves are inclined from top to bottom along the backrest body and gradually approach.
  • the arms are respectively fixed with sliding blocks that are slidably matched with the corresponding guide grooves to realize the width adjustment of the seat clamping arm.
  • the cost of opening two sets of guide grooves on the backrest body is high, the stability of the backrest plate is not good, the structure is complicated, the installation and maintenance are inconvenient, the adjustment method is relatively complicated, the stability of the whole mechanism is not strong, and it is easy to shake.
  • the sliding smoothness of the slider is not good. When the slider slides along the guide groove, the left and right side walls of the guide groove are stressed, which is prone to jamming, and the left and right side walls are easy to wear. When a problem occurs in one side wall, the entire mechanism is Can not work normally, increasing the failure rate of the product.
  • the Chinese patent with the patent number CN207697551U discloses a headrest height adjustment and side wing width adjustment mechanism of a child safety seat, which includes a seat, the upper part of the seat is provided with a headrest, and the two sides of the seat The side ends are respectively provided with side wings, the seat and the headrest can be adjusted up and down through the headrest height adjustment assembly, and the side wings and the seat can be adjusted up, down, left and right through the width adjustment assembly.
  • the adjustment mechanism has the advantages of convenient disassembly and compact structure.
  • the opening of the chute makes the product processing technology more complicated, the maintenance is more inconvenient, and it takes up more space on the back plate, and the connection strength between the chute and the guide is small, and the adjustment accuracy is small. , At the same time, the stability of the side wing is poor, and it will shake after long-term use, and the safety is not strong.
  • the present invention aims at the complicated structure of the synchronous adjustment mechanism of the height of the headrest and the width of the side wings of the child safety seat in the prior art, the stability of the whole mechanism is not strong, it is easy to produce shaking, the adjustment accuracy is small, the space is large, the cost is high, and the seat is installed and maintained. Inconvenient maintenance and other shortcomings, it provides a child safety seat headrest height with simple and compact structure, convenient adjustment, high connection strength of the whole mechanism, good safety, high adjustment accuracy, small space occupation, low cost, and convenient installation and maintenance. And side wing width synchronization adjustment mechanism.
  • a child safety seat headrest height and side wing width synchronization adjustment mechanism including a first connecting arm on the left, a second connecting arm on the right and
  • the backrest plate connected with the seat base also includes a screw rod for connecting the first connecting arm and the second connecting arm.
  • the screw rod is provided with rolling parts
  • the inner side of the backrest plate is provided with a guiding transmission part that cooperates with the rolling parts.
  • the screw and the connecting arm are matched. It has the advantages of compact structure, high connection strength, good safety, and low space occupancy, and the adjustment synchronization between the screw and the connecting arm is good ,
  • the adjustment of the first connecting arm and the second connecting arm is controllable and precise, and the connecting arm can be adjusted in a stable position without shaking.
  • the rolling element and the guide transmission part are in rolling cooperation, which has stable transmission and low friction Features:
  • the screw is driven by the rolling element to move up or down along the guide transmission part, and the rotation of the screw drives the first connecting arm and the second connecting arm to move relative or to each other, so that the first connecting arm and the second connecting arm are close to or away from each other , So as to realize the width adjustment between the left and right wings.
  • the guide transmission part is a rack
  • the rack is arranged on the backrest plate in the vertical direction
  • the rolling element is a gear
  • the gear meshes with the rack.
  • the rack and pinion structure is simple, low cost, gear rack meshing, with large bearing capacity, stable transmission, high transmission accuracy, low wear and low noise, which can ensure smooth transmission, high safety and reliability, and better user experience.
  • the rack and the backrest plate are integrally formed or detachably connected.
  • the rack can be directly installed on the back-to-back board or separately installed on the back-to-back board.
  • the integrated design has simple processing technology, low cost, detachable connection and good controllability, and it is easy to replace the rack.
  • the rolling element and the screw are arranged coaxially.
  • the screw is driven to rotate synchronously to ensure the synchronous movement of the rolling element and the screw.
  • the rolling element and the screw are integrally formed.
  • the synchronization between the rolling parts and the screw is good, the processing technology is simple, and the installation and maintenance are easy.
  • both the first connecting arm and the second connecting arm are provided with threaded sleeves for threading with the screw rod, and the threaded sleeves are detachably connected or integrally formed with the first connecting arm and the second connecting arm.
  • the screw sleeve is matched with the screw thread for good tightness.
  • the screw includes a first screw section that is threadedly connected with the first connecting arm and a second screw section that is threadedly connected with the second connecting arm, and the threads on the first screw section and the second screw section have opposite directions.
  • the advantage of adopting this rotation direction is that when the headrest is adjusted upward, the gear rolls upward to drive the screw to rotate. At this time, the first connecting arm and the second connecting arm move toward each other to increase the distance between the two to realize synchronous adjustment of the width.
  • the characteristic of the seat is to realize the function of increasing the height of the seat while increasing the width at the same time; the screw and the connecting arm are threaded, the connection is strong, the fixing is firm, it can prevent man-made damage and has a long service life.
  • the rolling element is arranged in the middle of the screw, and the first screw section and the second screw section are respectively located on both sides of the rolling element.
  • the rolling element is arranged in the middle of the screw, the structure is simple and tiny, stable and reliable. When the first connecting arm and the second connecting arm move relative or opposite to each other, they will approach or move away from the rolling element.
  • the screw is arranged in a horizontal direction, the thread direction of the connecting part of the screw and the first connecting arm is right-handed, and the thread direction of the connecting part of the screw and the second connecting arm is left-handed.
  • the installation is convenient, the transmission effect is good, and the adjustment is convenient; when the headrest is lifted upward by adopting this rotation direction, the distance between the first connecting arm and the second connecting arm is enlarged, and synchronous adjustment is realized.
  • the vehicle also includes a seat base, a left side wing, a right side wing, a headrest, a sliding plate fixedly connected to the headrest, and a driving device for driving the headrest to move up and down.
  • the left side wing is fixed to the first connecting arm.
  • the right side wing is fixedly connected with the second connecting arm, and sliding components are arranged between the first connecting arm and the second connecting arm and the sliding plate.
  • the sliding components include a lateral sliding groove and a lateral sliding block.
  • the block is embedded in the horizontal sliding groove and can move left and right relative to the horizontal sliding groove.
  • One of the horizontal sliding groove and the horizontal sliding block is arranged on the first connecting arm and the second connecting arm, and the other is arranged on the sliding groove.
  • the driving device drives the headrest to move up and down to adjust the height of the headrest.
  • the headrest drives the sliding plate to move up and down.
  • the sliding plate drives the first connection arm and the second connection through the sliding assembly
  • the arms move up or down synchronously.
  • the first connecting arm and the second connecting arm realize the left and right movement of the relative sliding plate through the relative left and right movement of the lateral sliding block and the lateral sliding groove; when the sliding plate drives the first When the connecting arm and the second connecting arm move up and down, the first connecting arm and the second connecting arm drive the screw up and down.
  • the rolling element drives the screw to rotate synchronously, and the screw rotates to drive the screw.
  • the first connecting arm and the second connecting arm move relative or toward each other, while the first connecting arm and the second connecting arm move left and right on the sliding plate through the sliding assembly, and the first connecting arm and the second connecting arm respectively drive the left side
  • the wing and the right wing are close to or far away from each other, so as to realize the synchronous adjustment of the height and width of the left and right wing.
  • the present invention has significant technical effects: the child safety seat headrest height and side wing width synchronous adjustment mechanism provided by the present application adopts a screw and connecting arm threaded manner to adjust the width of the side wing, and the screw structure Simple, the screw drive has the characteristics of reliable connection and stable transmission.
  • the screw and the connecting arm have a compact structure, high connection strength, not easy to shake, good safety, long service life, and low space occupancy.
  • the advantages of the screw are The adjustment synchronization with the connecting arm is good, the screw can adjust the connecting arm in a stable position, so that the adjustment of the connecting arm is controllable and the adjustment accuracy is high; by setting the first screw section and the second screw section to have opposite screw directions, To ensure that the first connecting arm and the second connecting arm can move relative to each other, the design isaki and reliable; a rolling element is provided on the screw, and a guide transmission part is provided on the backrest plate to cooperate with the rolling element, and the rolling element moves upward along the guide transmission part Or the downward movement drives the screw to rotate synchronously. The rotation of the screw drives the first connecting arm and the second connecting arm to move relative or to each other.
  • the rolling parts are gears, and the guiding transmission part is a rack.
  • the rack and pinion has a simple structure and low cost.
  • the rack meshing has the characteristics of large bearing capacity, stable transmission, high transmission accuracy, low wear and low noise, which can ensure smooth transmission, high safety and reliability, and better user experience;
  • the rolling element and the screw are integrally formed to ensure rolling
  • the synchronization and transmission efficiency of the parts and the screw, the processing technology is simple, and the installation and maintenance are easy;
  • the rack can be directly installed on the back-to-board or separately installed on the back-to-board.
  • the integrated design has simple processing technology and low cost.
  • the disassembly and connection have good controllability, and it is easy to replace the rack.
  • FIG. 1 is a schematic structural diagram of a child safety seat headrest height and side wing width synchronization adjustment mechanism.
  • Figure 2 is a schematic diagram of the screw structure.
  • Fig. 3 is a schematic diagram of the structure of the back plate.
  • Fig. 4 is a schematic diagram of the connection between the driving device and the headrest.
  • the child safety seat headrest height and side wing width synchronous adjustment mechanism includes a first connecting arm 1 on the left side, a second connecting arm 2 on the right side, and a backrest 3 connected to the seat base 9.
  • the up, down, left, and right directions in this embodiment are all referenced based on Figure 1.
  • the first connecting arm 1 is used to connect the left wing 11
  • the second connecting arm 2 is used to connect the right wing 21, and It includes a screw 4 for connecting the first connecting arm 1 and the second connecting arm 2.
  • the screw 4 is provided with a rolling element 5, and the inner side of the backrest plate 3 is provided with a guide transmission part 31 that cooperates with the rolling element 5, and the rolling element 5
  • the screw 4 is driven to rotate synchronously.
  • the rotation of the screw 4 drives the first connecting arm 1 and the second connecting arm 2 to move relative or to each other, and the first connecting arm 1 and the second connecting arm 2 are opposite.
  • the movement or the opposite movement depends on whether the screw 4 rotates forward or backward.
  • the screw 4 transmission has the characteristics of reliable connection and stable transmission.
  • the screw 4 is matched with the connecting arm.
  • the rolling member 5 and the guide transmission part 31 are in rolling cooperation with The characteristics of stable transmission and low friction; the upward or downward movement of the rolling element 5 along the guide transmission portion 31 drives the screw 4 to rotate, and the rotation of the screw 4 drives the first connecting arm 1 and the second connecting arm 2 to move relative to each other, so that The first connecting arm 1 and the second connecting arm 2 are close to or far away from each other, so as to realize the width adjustment between the left side wing 11 and the right side wing 21.
  • the guide transmission part 31 in this embodiment is a rack, which is arranged on the backrest 3 in the vertical direction, and the rolling element 5
  • gears gears mesh with racks.
  • the rack and pinion structure is simple, low cost, gear rack meshing, with large bearing capacity, stable transmission, high transmission accuracy, low wear and low noise, which can ensure smooth transmission, high safety and reliability, and better user experience.
  • the screw 4 includes a first screw section 41 that is threadedly connected to the first connecting arm 1 and a second screw section 42 that is threadedly connected to the second connecting arm 2.
  • the threads on the first screw section 41 and the second screw section 42 have opposite directions.
  • the screw thread on the first screw section 41 is right-handed, and the screw screw on the second screw section 42 is left-handed.
  • the advantage of adopting this rotation direction is that when the headrest 6 is adjusted upward, the gear rolls upward to drive the screw 4 to rotate.
  • the first connecting arm 1 and the second connecting arm 2 move toward each other to increase the distance between them. Realize the characteristics of synchronous adjustment of the width, and realize the function of increasing the height of the seat while also increasing the width.
  • the screw 4 is threadedly connected with the connecting arm, which has strong connection strength and firm fixation, can prevent man-made damage, and has a long service life; the screw threads of the first screw section 41 and the second screw section 42 are opposite to each other, ensuring that the first connecting arm 1 and the second The connecting arms 2 can move relative to each other so as to approach or move away from each other, so that the width between the left wing 11 and the right wing 21 can be adjusted.
  • the rolling element 5 is arranged in the middle of the screw 4.
  • the first screw section 41 and the second screw section 42 are respectively located on both sides of the rolling element 5.
  • the first screw section 41 is located on the left side of the rolling element 5, and the second screw section 42 is located on the rolling element.
  • the rolling element 5 is arranged in the middle of the screw 4 and has a simple and sophisticated structure. When the first connecting arm 1 and the second connecting arm 2 move relative to each other, they will approach the rolling element 5 or move away from the rolling element 5.
  • the rolling element 5 and the screw 4 are arranged coaxially. When the rolling element 5 is rolled, the screw 4 is driven to rotate synchronously, and the synchronous movement of the rolling element 5 and the screw 4 is ensured.
  • the screw 4 is arranged in a horizontal direction, the screw direction of the connecting part of the screw 4 and the first connecting arm 1 is right-handed, and the screw direction of the connecting part of the screw 4 and the second connecting arm 2 is left-handed.
  • the installation is convenient, the transmission effect is good, and the adjustment is easy; when the headrest 6 is lifted upward by adopting this rotation direction, the distance between the first connecting arm 1 and the second connecting arm 2 is enlarged, and synchronous adjustment is realized.
  • Both the first connecting arm 1 and the second connecting arm 2 are provided with a threaded sleeve 43 for threaded engagement with the screw 4, and the threaded sleeve 43 is integrally formed with the first connecting arm 1 and the second connecting arm 2.
  • the left side wing 11 It is fixedly connected to the first connecting arm 1, and the right side wing 21 is fixedly connected to the second connecting arm 2.
  • a sliding assembly is provided between the first connecting arm 1 and the second connecting arm 2 and the sliding plate 61.
  • the sliding assembly includes a transverse The sliding groove 7 and the lateral sliding block 8, the lateral sliding block 8 is embedded in the lateral sliding groove 7 and can move left and right relative to the lateral sliding groove 7, one of the lateral sliding groove 7 and the lateral sliding block 8 is provided On the first connecting arm 1 and the second connecting arm 2, the other is arranged on the sliding plate 61, the first connecting arm 1 and the second connecting arm 2 are both provided with a lateral sliding groove 7, and the sliding plate 61 A lateral sliding block 8 is provided on the upper part, one end of the driving device 62 is connected to the headrest 6, and the other end of the driving device 62 is connected to the seat base 9. The driving device 62 adjusts the height of the headrest 6.
  • the driving device 62 can be an air strut.
  • the sliding plate 61 drives the first connecting arm 1 through the lateral sliding block 8 It moves up or down synchronously with the second connecting arm 2.
  • the first connecting arm 1 and the second connecting arm 2 realize the relative left and right movement of the relative sliding plate 61 through the relative left and right movement of the lateral sliding block 8 and the lateral sliding groove 7 mobile.
  • the adjustment principle of the child safety seat head restraint height and side wing width synchronous adjustment mechanism is: when the head restraint 6 rises, the driving device 62 drives the head restraint 6 to move up, and when the head restraint 6 moves up and down, the height of the head restraint 6 is adjusted.
  • the headrest 6 drives the sliding plate 61 to move upwards, and the sliding plate 61 drives the first connecting arm 1 and the second connecting arm 2 to move upwards.
  • the first connecting arm 1 and the second connecting arm 2 respectively drive the left
  • the rolling element 5 rolls upward along the guide transmission part 31, and the rolling element 5 rolls to drive the screw 4 Synchronous rotation.
  • the forward rotation of the screw 4 drives the first connecting arm 1 and the second connecting arm 2 to move toward each other.
  • the first connecting arm 1 passes through the lateral sliding block 8 and the lateral
  • the sliding grooves 7 cooperate with each other on the sliding plate 61 to realize leftward movement
  • the second connecting arm 2 cooperates with the lateral sliding block 8 and the lateral sliding groove 7 to move to the right on the sliding plate 61.
  • the first connection The arm 1 and the second connecting arm 2 are away from each other.
  • the first connecting arm 1 and the second connecting arm 2 respectively drive the left side wing 11 and the right side wing 21 to move away from each other, thereby increasing the left side wing 11 and the right side wing 21
  • the driving device 62 drives the headrest 6 to move downward
  • the headrest 6 drives the sliding plate 61 to move downwards
  • the sliding plate 61 drives the first connecting arm 1 and the second connecting arm 2 Move downwards.
  • the first connecting arm 1 and the second connecting arm 2 respectively drive the left wing 11 and the right wing 21 to descend.
  • the first connecting arm 1 and the second connecting arm 2 drive the screw 4 to move downwards. 4 While moving upwards, the rolling member 5 rolls down along the guide transmission portion 31.
  • the rolling member 5 drives the screw 4 to rotate synchronously. At this time, the rotation direction of the screw 4 is reversed, and the screw 4 reverses to drive the first connecting arm 1 and The second connecting arm 2 performs relative movement, and at the same time, the first connecting arm 1 cooperates with the sliding plate 61 through the lateral sliding block 8 and the lateral sliding groove 7 to move to the right, and the second connecting arm 2 passes through the lateral sliding block.
  • the difference between this embodiment and the first embodiment is that the screw sleeve 43 is detachably connected to the first connecting arm 1 and the second connecting arm 2.
  • the screw sleeve 43 is detachable, has good controllability and is easy to replace.
  • the child safety seat headrest height and side wing width synchronous adjustment mechanism as shown in the figure, the difference between this embodiment and the first embodiment is: the first connecting arm 1 and the second connecting arm 2 are both provided with lateral sliding In block 8, the sliding plate 61 is provided with a lateral sliding groove 7.
  • the sliding plate 61 drives the first connecting arm 1 and the second connecting arm 2 to move up or down synchronously through the transverse sliding groove 7.
  • the first connecting arm 1 and the second connecting arm 2 realize the left and right movement of the relative sliding plate 61 through the relative left and right movement of the lateral sliding block 8 and the lateral sliding groove 7.
  • the child safety seat headrest height and side wing width synchronous adjustment mechanism as shown in the figure, the difference between this embodiment and the first embodiment is that the rolling element 5 and the screw 4 are integrally formed.
  • the rolling element 5 and the screw 4 have good synchronization, simple processing technology, and easy installation and maintenance.
  • the child safety seat headrest height and side wing width synchronous adjustment mechanism as shown in the figure, the difference between this embodiment and the fourth embodiment is that the rack and the backrest plate 3 are integrally formed.
  • the rack can be directly arranged on the back plate 3, and the integrated molding design has simple processing technology and low cost.
  • the child safety seat headrest height and side wing width synchronous adjustment mechanism as shown in the figure, the difference between this embodiment and the fifth embodiment is that the rack and the backrest plate 3 are detachably connected.
  • the rack can be separately installed on the back plate 3, and the detachable connection has good controllability, and it is convenient to replace the rack.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • General Health & Medical Sciences (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Seats For Vehicles (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

儿童安全座椅头枕高度及侧翼宽度同步调节机构，包括左侧的第一连接臂(1)、右侧的第二连接臂(2)和与座椅底座(9)连接的背靠板(3)，还包括用于连接第一连接臂(1)和第二连接臂(2)的螺杆(4)，螺杆(4)上设置有滚动件(5)，背靠板(3)内侧设置有与滚动件(5)配合的导向传动部(31)，滚动件(5)沿导向传动部(31)向上或向下滚动时带动螺杆(4)同步转动，螺杆(4)转动带动第一连接臂(1)和第二连接臂(2)进行相对或相向运动。该儿童安全座椅头枕高度及侧翼宽度同步调节机构具有连接可靠、传动稳定固定的特点。

Description

儿童安全座椅头枕高度及侧翼宽度同步调节机构 技术领域
本发明涉及儿童安全座椅领域，尤其涉及了儿童安全座椅头枕高度及侧翼宽度同步调节机构。
 背景技术
[0002] 随着孩子的成长，安全座椅需要调整头枕和肩带高度，以适应不同的体型身高和体型。现有儿童安全座椅采用的应对不同年龄的儿童的大多做法是，采用一体式座椅，在座椅内设置软垫，对于体型较小的婴幼儿采用座椅加软垫的方式，对于体型较大的儿童，则将软垫移除，乘坐于一体式座椅内，并没有侧翼自动调节机构，侧翼高度需要拆解安装，也有一些可以随着头枕高度调节自动调节侧翼高度的机构，但是不能调节座椅内部侧翼之间的宽度空间，而且结构复杂，操作不方便。儿童安全座椅的头枕与侧翼的位置调整不仅影响儿童乘坐的舒适性，更影响儿童生命安全。因此，儿童安全座椅上需要设置能够同步调节侧翼宽度和头枕高度的调节机构，以适应不同年龄体型的儿童。
中国专利号为CN207631041U的中国专利公开了儿童安全座椅同步调整结构，其在所述靠背本体的左右两侧对称的设有两横向滑槽，所述的两横向连接臂对应的导向滑动安装于两横向滑槽中，并通过在所述靠背本体上左右对称的开设有两组竖向延伸的导向槽，该两组导向槽沿靠背本体从上至下倾斜设置并逐渐靠近，在所述连接臂上分别固定有与对应导向槽导向滑动配合的滑块，来实现座椅夹持臂的宽度调节。但是其背靠本体上两组导向槽的开设成本高，背靠板稳定性不佳，结构复杂，安装维护保养不方便，调节方式相对较为复杂，整个机构结构稳定性不强，易产生晃动，滑块的滑动流畅性不佳，滑块沿导向槽滑动时导向槽的左右侧壁均受力，容易出现卡滞现象，且左右侧壁易磨损，当一个侧壁出现问题时，整个机构便无法正常工作，增加了产品的故障率。
专利号为CN207697551U的中国专利公开了一种儿童安全座椅的头枕高度调节和侧翼宽度调节机构，其包括座椅，所述的座椅的上部设有头枕，所述的座椅的两侧端分别设有侧翼，所述的座椅与头枕间通过头枕高度调节组件进行上下调节，所述的侧翼与座椅间通过宽度调节组件进行上下左右调节。该调节机构具有拆卸方便，结构紧凑的优点。但是在实际使用过程中，其滑槽的开设使得产品加工工艺更为复杂，维护保养较为不便，还占用了背靠板较多的空间，且滑槽与导向件的连接强度小，调节精度小，同时侧翼的稳定性较差，长期使用后会出现晃动现象，安全性不强。
 技术问题
本发明针对现有技术中儿童安全座椅头枕高度及侧翼宽度同步调节机构结构复杂，整个机构稳定性不强，易产生晃动，调节精度小，空间占用大，成本高，座椅安装和维护保养不便等缺点，提供了一种结构简单紧凑，调节方便，整个机构连接强度高，安全性好，调节精度高，空间占用小，成本低，安装和维护保养方便的儿童安全座椅头枕高度及侧翼宽度同步调节机构。
 技术解决方案
[0004] 为了解决上述技术问题，本发明通过下述技术方案得以解决：儿童安全座椅头枕高度及侧翼宽度同步调节机构，包括左侧的第一连接臂、右侧的第二连接臂和与座椅底座连接的背靠板，还包括用于连接第一连接臂和第二连接臂的螺杆，螺杆上设置有滚动件，背靠板内侧设置有与滚动件配合的导向传动部，滚动件沿导向传动部向上或向下滚动时带动螺杆同步转动，螺杆转动带动第一连接臂和第二连接臂进行相对或相向运动。螺杆传动具有连接可靠、传动稳定固定的特点，采用螺杆与连接臂配合的方式，具有结构紧凑，连接强度大，安全性好，空间占用率低的优点，且螺杆与连接臂的调节同步性好，第一连接臂和第二连接臂的调节可控且精度高，可以使连接臂调节在稳定的位置，不易出现晃动现象；滚动件与导向传动部滚动配合，具有传动稳定、摩擦力小的特点；通过滚动件沿导向传动部向上或向下运动带动螺杆转动，螺杆转动带动第一连接臂和第二连接臂进行相对或相向运动，使第一连接臂和第二连接臂相互靠近或远离，从而实现左侧翼和右侧翼之间的宽度调节。
作为优选，导向传动部为齿条，齿条沿竖直方向设置在背靠板上，滚动件为齿轮，齿轮与齿条啮合。齿轮齿条结构简单，成本低，齿轮齿条啮合，具有承载力大，传动稳定，传动精度高，磨损小，噪音小的特点，能够保证传动平稳，安全可靠性高，使用体验更好。
作为优选，齿条与背靠板一体成型或可拆卸连接。齿条可直接开设在背靠板上，也可单独安装在背靠板上，一体成型设计加工工艺简单，成本低，可拆卸连接可控性好，便于更换齿条。
作为优选，滚动件与螺杆同轴设置。使滚动件滚动时带动螺杆同步转动，保证滚动件与螺杆的同步运动。
作为优选，滚动件与螺杆一体成型。滚动件与螺杆的同步性好，加工工艺简单，便于安装维护。
作为优选，第一连接臂和第二连接臂上均设置有用于与螺杆螺纹配合的螺套，螺套与第一连接臂和第二连接臂为可拆卸连接或一体成型。螺套与螺杆螺纹配合，紧固性好。
作为优选，螺杆包括与第一连接臂螺纹连接的第一螺杆段和与第二连接臂螺纹连接的第二螺杆段，第一螺杆段和第二螺杆段上的螺纹旋向相反。采用这种旋向的优点在于，向上调节头枕时，齿轮向上滚动带动螺杆转动，此时第一连接臂和第二连接臂发生相向运动使两者之间的距离增大，实现同步调节宽度的特点，实现座椅高度增高的同时，宽度也同时增大的功能；螺杆与连接臂螺纹连接，连接强度大，固定牢靠，能够防止人为破坏，使用寿命长。
作为优选，滚动件设置在螺杆的中部，第一螺杆段和第二螺杆段分别位于滚动件的两侧。滚动件设置在螺杆的中部，结构简单精妙，稳固牢靠，第一连接臂和第二连接臂发生相对或相向运动时，会靠近滚动件或远离滚动件。
作为优选，螺杆沿水平方向设置，螺杆与第一连接臂连接部分的螺纹旋向为右旋，螺杆与第二连接臂连接部分的螺纹旋向为左旋。安装方便，传动效果佳，便于调节；采用这种旋向能够实现向上提升头枕时，第一连接臂和第二连接臂之间的距离加大，实现同步调节。
作为优选，还包括座椅底座、左侧翼、右侧翼、头枕、与头枕固连的滑移板和用于带动头枕上下运动的驱动装置，左侧翼与第一连接臂固连，右侧翼与第二连接臂固连，第一连接臂和第二连接臂与滑移板之间均设置有滑动组件，滑动组件包括横向滑移槽和横向滑移块，横向滑移块嵌入横向滑移槽中并可相对横向滑移槽左右移动，横向滑移槽和横向滑移块中的一者设置在第一连接臂和第二连接臂上，另一者设置在滑移板上，驱动装置的一端与头枕连接，驱动装置的另一端与座椅底座连接。驱动装置带动头枕上下运动进行头枕高度调节，头枕带动滑移板上下运动，当头枕带动滑移板向上或向下运动时，滑移板通过滑动组件带动第一连接臂和第二连接臂进行向上或向下同步运动，同时，第一连接臂和第二连接臂通过横向滑移块与横向滑移槽的相对左右移动实现相对滑移板的左右运动；当滑移板带动第一连接臂和第二连接臂上下运动时，第一连接臂和第二连接臂带动螺杆上下运动，螺杆上下运动的同时滚动件沿导向传动部上下滚动，滚动件滚动带动螺杆同步转动，螺杆转动带动第一连接臂和第二连接臂进行相对或相向运动，同时第一连接臂和第二连接臂通过滑动组件在滑移板上实现左右移动，第一连接臂和第二连接臂分别带动左侧翼和右侧翼相互靠近或远离，从而实现左侧翼和右侧翼的高度度及宽度的同步调节。
 有益效果
本发明由于采用了以上技术方案，具有显著的技术效果：本申请提供的儿童安全座椅头枕高度及侧翼宽度同步调节机构采用螺杆与连接臂螺纹配合的方式对侧翼的宽度进行调节，螺杆结构简单，螺杆传动具有连接可靠、传动稳定固定的特点，螺杆与连接臂螺纹配合具有结构紧凑，连接强度大，不易出现晃动现象，安全性好，使用寿命长，空间占用率低的优点，且螺杆与连接臂的调节同步性好，螺杆可以使连接臂调节在稳定的位置，从而使连接臂的调节可控且调节精度高；通过设置第一螺杆段和第二螺杆段的螺纹旋向相反，保证第一连接臂和第二连接臂能够进行相对或相向运动，设计精妙可靠；在螺杆上设置滚动件，在背靠板上设置导向传动部与滚动件配合，通过滚动件沿导向传动部向上或向下运动带动螺杆同步转动，螺杆转动带动第一连接臂和第二连接臂进行相对或相向运动，且滚动件为齿轮，导向传动部为齿条，齿轮齿条结构简单，成本低，齿轮齿条啮合，具有承载力大，传动稳定，传动精度高，磨损小，噪音小的特点，能够保证传动平稳，安全可靠性高，用户使用体验更好；滚动件与螺杆一体成型，保证了滚动件与螺杆的同步性和传动效率，加工工艺简单，便于安装维护；齿条可直接开设在背靠板上，也可单独安装在背靠板上，一体成型设计加工工艺简单，成本低，可拆卸连接可控性好，便于更换齿条。
 附图说明
[0006] 图1是儿童安全座椅头枕高度及侧翼宽度同步调节机构的结构示意图。
图2是螺杆的结构示意图。
图3是背靠板的结构示意图。
图4是驱动装置与头枕的连接示意图。
附图中各数字标号所指代的部位名称如下：1—第一连接臂、11—左侧翼、2—第二连接臂、21—右侧翼、3—背靠板、31—导向传动部、4—螺杆、41—第一螺杆段、42—第二螺杆段、43—螺套、5—滚动件、6—头枕、61—滑移板、62—驱动装置、7—横向滑移槽、8—横向滑移块、9—座椅底座。
 本发明的实施方式
[0008] 下面结合附图与实施例对本发明作进一步详细描述。
首先申明的是，本申请是对本公司在先专利的改进，即是对专利权人为杭州乐檬实业有限公司的实用新型专利CN201721579368.3“一种儿童安全座椅的头枕高度调节和侧翼宽度调节机构”的改进。
实施例1
儿童安全座椅头枕高度及侧翼宽度同步调节机构，如图所示，包括左侧的第一连接臂1、右侧的第二连接臂2和与座椅底座9连接的背靠板3，本实施例中的上、下、左、右方向均是以图1为基准参考的，第一连接臂1用于连接左侧翼11，第二连接臂2用于连接右侧翼21，还包括用于连接第一连接臂1和第二连接臂2的螺杆4，螺杆4上设置有滚动件5，背靠板3内侧设置有与滚动件5配合的导向传动部31，滚动件5沿导向传动部31向上或向下滚动时带动螺杆4同步转动，螺杆4转动带动第一连接臂1和第二连接臂2进行相对或相向运动，第一连接臂1和第二连接臂2发生相对运动还是相向运动取决于螺杆4是正向转动还是反向转动。螺杆4传动具有连接可靠、传动稳定固定的特点，采用螺杆4与连接臂配合的方式，具有结构紧凑，连接强度大，安全性好，空间占用率低的优点，且螺杆4与连接臂的调节同步性好，第一连接臂1和第二连接臂2的调节可控且精度高，可以使连接臂调节在稳定的位置，不易出现晃动现象；滚动件5与导向传动部31滚动配合，具有传动稳定、摩擦力小的特点；通过滚动件5沿导向传动部31向上或向下运动带动螺杆4转动，螺杆4转动带动第一连接臂1和第二连接臂2进行相对或相向运动，使第一连接臂1和第二连接臂2相互靠近或远离，从而实现左侧翼11和右侧翼21之间的宽度调节。
为了更清楚地表达本实施例中滚动件5与导向传动部31的传动关系，本实施例中导向传动部31为齿条，齿条沿竖直方向设置在背靠板3上，滚动件5为齿轮，齿轮与齿条啮合。工作时，齿条不发生移动，齿轮在齿条上向上滚动或向下滚动。齿轮齿条结构简单，成本低，齿轮齿条啮合，具有承载力大，传动稳定，传动精度高，磨损小，噪音小的特点，能够保证传动平稳，安全可靠性高，使用体验更好。
螺杆4包括与第一连接臂1螺纹连接的第一螺杆段41和与第二连接臂2螺纹连接的第二螺杆段42，第一螺杆段41和第二螺杆段42上的螺纹旋向相反，第一螺杆段41上的螺纹旋向为右旋，第二螺杆段42上的螺纹旋向为左旋。采用这种旋向的优点在于，向上调节头枕6时，齿轮向上滚动带动螺杆4转动，此时第一连接臂1和第二连接臂2发生相向运动使两者之间的距离增大，实现同步调节宽度的特点，实现座椅高度增高的同时，宽度也同时增大的功能。螺杆4与连接臂螺纹连接，连接强度大，固定牢靠，能够防止人为破坏，使用寿命长；第一螺杆段41和第二螺杆段42的螺纹旋向相反，保证第一连接臂1和第二连接臂2能够进行相对或相向运动，从而相互靠近或远离，实现左侧翼11和右侧翼21之间宽度的调节。
滚动件5设置在螺杆4的中部，第一螺杆段41和第二螺杆段42分别位于滚动件5的两侧，第一螺杆段41位于滚动件5的左侧，第二螺杆段42位于滚动件5的右侧。滚动件5设置在螺杆4的中部，结构简单精妙，第一连接臂1和第二连接臂2发生相对或相向运动时，会靠近滚动件5或远离滚动件5。
滚动件5与螺杆4同轴设置。使滚动件5滚动时带动螺杆4同步转动，保证滚动件5与螺杆4的同步运动。
螺杆4沿水平方向设置，螺杆4与第一连接臂1连接部分的螺纹旋向为右旋，螺杆4与第二连接臂2连接部分的螺纹旋向为左旋。安装方便，传动效果佳，便于调节；采用这种旋向能够实现向上提升头枕6时，第一连接臂1和第二连接臂2之间的距离加大，实现同步调节。
第一连接臂1和第二连接臂2上均设置有用于与螺杆4螺纹配合的螺套43，螺套43与第一连接臂1和第二连接臂2为一体成型。
还包括座椅底座9、左侧翼11、右侧翼21、头枕6、与头枕6固连的滑移板61和用于带动头枕6上下运动的驱动装置62，左侧翼11与第一连接臂1固连，右侧翼21与第二连接臂2固连，第一连接臂1和第二连接臂2与滑移板61之间均设置有滑动组件，滑动组件包括横向滑移槽7和横向滑移块8，横向滑移块8嵌入横向滑移槽7中并可相对横向滑移槽7左右移动，横向滑移槽7和横向滑移块8中的一者设置在第一连接臂1和第二连接臂2上，另一者设置在滑移板61上，第一连接臂1和第二连接臂2上均开设有横向滑移槽7，滑移板61上设置有横向滑移块8，驱动装置62的一端与头枕6连接，驱动装置62的另一端与座椅底座9连接。驱动装置62对头枕6高度进行调节，驱动装置62可为气撑杆，当头枕6带动滑移板61向上或向下运动时，滑移板61通过横向滑移块8带动第一连接臂1和第二连接臂2向上或向下同步运动，同时，第一连接臂1和第二连接臂2通过横向滑移块8与横向滑移槽7的相对左右移动实现相对滑移板61的左右移动。
儿童安全座椅头枕高度及侧翼宽度同步调节机构的调节原理是：当头枕6上升时，驱动装置62带动头枕6向上运动，头枕6上下运动时实现头枕6高度的调节，当头枕6上升时，头枕6带动滑移板61向上运动，滑移板61带动第一连接臂1和第二连接臂2向上运动，此时第一连接臂1和第二连接臂2分别带动左侧翼11和右侧翼21上升，第一连接臂1和第二连接臂2带动螺杆4向上运动，螺杆4向上运动的同时滚动件5沿导向传动部31向上滚动，滚动件5滚动带动螺杆4同步转动，以此时螺杆4的转动方向为正转，螺杆4正转带动第一连接臂1和第二连接臂2进行相向运动，同时第一连接臂1通过横向滑移块8和横向滑移槽7相互配合在滑移板61上实现向左移动，第二连接臂2通过横向滑移块8和横向滑移槽7相互配合在滑移板61上实现向右移动，第一连接臂1和第二连接臂2相互远离，此时第一连接臂1和第二连接臂2分别带动左侧翼11和右侧翼21相互远离，从而加大左侧翼11和右侧翼21之间的宽度；当头枕6下降时，驱动装置62带动头枕6向下运动时，头枕6带动滑移板61向下运动，滑移板61带动第一连接臂1和第二连接臂2向下运动，此时第一连接臂1和第二连接臂2分别带动左侧翼11和右侧翼21下降，第一连接臂1和第二连接臂2带动螺杆4向下运动，螺杆4向上运动的同时滚动件5沿导向传动部31向下滚动，滚动件5滚动带动螺杆4同步转动，以此时螺杆4的转动方向为反转，螺杆4反转带动第一连接臂1和第二连接臂2进行相对运动，同时第一连接臂1通过横向滑移块8和横向滑移槽7相互配合在滑移板61上实现向右移动，第二连接臂2通过横向滑移块8和横向滑移槽7相互配合在滑移板61上实现向左移动，第一连接臂1和第二连接臂2相互靠近，此时第一连接臂1和第二连接臂2分别带动左侧翼11和右侧翼21相互靠近，从而缩小左侧翼11和右侧翼21之间的宽度。
实施例2
儿童安全座椅，如图所示，本实施例与实施例1的区别之处在于：螺套43与第一连接臂1和第二连接臂2为可拆卸连接。螺套43可拆卸，可控性好，便于更换。
实施例3
儿童安全座椅头枕高度及侧翼宽度同步调节机构，如图所示，本实施例与实施例1的区别之处在于：第一连接臂1和第二连接臂2上均设置有横向滑移块8，滑移板61上开设有横向滑移槽7。当头枕6带动滑移板61向上或向下运动时，滑移板61通过横向滑移槽7带动第一连接臂1和第二连接臂2向上或向下同步运动，同时，第一连接臂1和第二连接臂2通过横向滑移块8与横向滑移槽7的相对左右移动实现相对滑移板61的左右移动。
实施例4
儿童安全座椅头枕高度及侧翼宽度同步调节机构，如图所示，本实施例与实施例1的区别之处在于：滚动件5与螺杆4一体成型。滚动件5与螺杆4的同步性好，加工工艺简单，便于安装维护。
实施例5
儿童安全座椅头枕高度及侧翼宽度同步调节机构，如图所示，本实施例与实施例4的区别之处在于：齿条与背靠板3为一体成型。齿条可直接开设在背靠板3上，一体成型设计加工工艺简单，成本低。
实施例6
儿童安全座椅头枕高度及侧翼宽度同步调节机构，如图所示，本实施例与实施例5的区别之处在于：齿条与背靠板3为可拆卸连接。齿条可单独安装在背靠板3上，可拆卸连接可控性好，便于更换齿条。
总之，以上所述仅为本发明的较佳实施例，凡依本发明申请专利范围所作的均等变化与修饰，皆应属本发明专利的涵盖范围。
 

Claims (10)

  1. 儿童安全座椅头枕高度及侧翼宽度同步调节机构，包括左侧的第一连接臂（1）、右侧的第二连接臂（2）和与座椅底座（9）连接的背靠板（3），其特征在于：还包括用于连接第一连接臂（1）和第二连接臂（2）的螺杆（4），螺杆（4）上设置有滚动件（5），背靠板（3）内侧设置有与滚动件（5）配合的导向传动部（31），滚动件（5）沿导向传动部（31）向上或向下滚动时带动螺杆（4）同步转动，螺杆（4）转动带动第一连接臂（1）和第二连接臂（2）进行相对或相向运动。
  2. 根据权利要求1所述的儿童安全座椅头枕高度及侧翼宽度同步调节机构，其特征在于：导向传动部（31）为齿条，齿条沿竖直方向设置在背靠板（3）上，滚动件（5）为齿轮，齿轮与齿条啮合。
  3. 根据权利要求2所述的儿童安全座椅头枕高度及侧翼宽度同步调节机构，其特征在于：齿条与背靠板（3）为一体成型或可拆卸连接。
  4. 根据权利要求1或2或3所述的儿童安全座椅头枕高度及侧翼宽度同步调节机构，其特征在于：滚动件（5）与螺杆（4）同轴设置。
  5. 根据权利要求4所述的儿童安全座椅头枕高度及侧翼宽度同步调节机构，其特征在于：滚动件（5）与螺杆（4）为一体成型。
  6. 根据权利要求1所述的儿童安全座椅，其特征在于：第一连接臂（1）和第二连接臂（2）上均设置有用于与螺杆（4）螺纹配合的螺套（43），螺套（43）与第一连接臂（1）和第二连接臂（2）为可拆卸连接或一体成型。
  7. 根据权利要求1所述的儿童安全座椅头枕高度及侧翼宽度同步调节机构，其特征在于：螺杆（4）包括与第一连接臂（1）螺纹连接的第一螺杆段（41）和与第二连接臂（2）螺纹连接的第二螺杆段（42），第一螺杆段（41）和第二螺杆段（42）上的螺纹旋向相反。
  8. 根据权利要求7所述的儿童安全座椅头枕高度及侧翼宽度同步调节机构，其特征在于：滚动件（5）设置在螺杆（4）的中部，第一螺杆段（41）和第二螺杆段（42）分别位于滚动件（5）的两侧。
  9. 根据权利要求1所述的儿童安全座椅头枕高度及侧翼宽度同步调节机构，其特征在于：螺杆（4）沿水平方向设置，螺杆（4）与第一连接臂（1）连接部分的螺纹旋向为右旋，螺杆（4）与第二连接臂（2）连接部分的螺纹旋向为左旋。
  10. 根据权利要求1所述的儿童安全座椅头枕高度及侧翼宽度同步调节机构，其特征在于：还包括座椅底座（9）、左侧翼（11）、右侧翼（21）、头枕（6）、与头枕（6）固连的滑移板（61）和用于带动头枕（6）上下运动的驱动装置（62），左侧翼（11）与第一连接臂（1）固连，右侧翼（21）与第二连接臂（2）固连，第一连接臂（1）和第二连接臂（2）与滑移板（61）之间均设置有滑动组件，滑动组件包括横向滑移槽（7）和横向滑移块（8），横向滑移块（8）嵌入横向滑移槽（7）中并可相对横向滑移槽（7）左右移动，横向滑移槽（7）和横向滑移块（8）中的一者设置在第一连接臂（1）和第二连接臂（2）上，另一者设置在滑移板（61）上，驱动装置（62）的一端与头枕（6）连接，驱动装置（62）的另一端与座椅底座（9）连接。
PCT/CN2019/092639 2019-04-10 2019-06-25 儿童安全座椅头枕高度及侧翼宽度同步调节机构 WO2020206842A1 (zh)

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