WO2020015596A1 - 一种isofix止退二道锁机构 - Google Patents

一种isofix止退二道锁机构 Download PDF

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Publication number
WO2020015596A1
WO2020015596A1 PCT/CN2019/095916 CN2019095916W WO2020015596A1 WO 2020015596 A1 WO2020015596 A1 WO 2020015596A1 CN 2019095916 W CN2019095916 W CN 2019095916W WO 2020015596 A1 WO2020015596 A1 WO 2020015596A1
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WO
WIPO (PCT)
Prior art keywords
stopper
slider
isofix
button
base
Prior art date
Application number
PCT/CN2019/095916
Other languages
English (en)
French (fr)
Inventor
曹文勇
程飞
Original Assignee
宁波宝贝第一母婴用品有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 宁波宝贝第一母婴用品有限公司 filed Critical 宁波宝贝第一母婴用品有限公司
Priority to ES19837244T priority Critical patent/ES2935689T3/es
Priority to KR2020217000006U priority patent/KR200496600Y1/ko
Priority to EP19837244.3A priority patent/EP3825171B1/en
Priority to JP2020600230U priority patent/JP3233422U/ja
Publication of WO2020015596A1 publication Critical patent/WO2020015596A1/zh

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    • 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
    • B60N2/2821—Seats readily mountable on, and dismountable from, existing seats or other parts of the vehicle having a seat and a base part
    • 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
    • B60N2/2887—Fixation to a transversal anchorage bar, e.g. isofix

Definitions

  • the utility model relates to a child safety seat component, in particular to an ISOFIX non-return two-way lock mechanism.
  • a child safety seat is a seat installed in a car and used to improve the safety of children. In the event of a car collision or sudden deceleration, a child safety seat can reduce the impact on children and limit their body movements to reduce injuries to them and ensure the safety of children's riding.
  • the Chinese patent with authorization bulletin number CN207257443U discloses a safety seat with an ISOFIX stop structure.
  • the safety seat includes a seat part, a base part and an ISOFIX connector in order from top to bottom.
  • the seat part is separately connected to the base part, and the ISOFIX connector is slidably connected to the bottom surface of the base part.
  • the front end of the ISOFIX connector is a connection end connected to the automobile interface, and the side wall of the rear end of the ISOFIX connector is provided with a vertically oriented guide rail.
  • a guide lever is provided in the guide rail and can be moved along the guide rail.
  • the stop lever is held on the upper end of the guide rail by an elastic member.
  • a pull bar is connected to the gear lever, and a pull bar pressure bar is arranged in the middle of the ISOFIX connector, and the pull bar pressure bar is below the guide rail.
  • the pulling belt passes under the pulling belt pressing rod, so that when the pulling belt is driven by the pulling force to move the gear lever, the gear lever is moved downward along the guide rail by the oblique downward force of the pulling belt.
  • the safety seat further includes a backstop member located below the bottom surface of the base portion, and the backstop member includes a backstop turning block and a backstop lever.
  • the middle part of the non-return turning block is rotatably provided on the bottom surface of the base part through a rotating shaft.
  • One end of the non-return turning block is a seat end, and the other end forms a mounting groove.
  • the bottom surface of the base portion is provided with a through hole, and the seat end of the non-return turning block just fits into the through hole.
  • a U-shaped stop lever is installed in the installation groove.
  • the middle portion of the backstop lever is located in the mounting groove, and both ends of the backstop lever extend downward to form a connector end.
  • An elastic element is arranged between the upper surface of the non-return rotation block and the bottom surface of the base. The elastic element is located between the mounting groove and the rotating shaft.
  • the ISOFIX connector In the initial state, the ISOFIX connector is located below the base portion, and the lever is abutted to the rear of the connector end.
  • the force is applied to the pulling belt, and the gear lever is moved downward along the guide rail by the oblique downward force of the pulling belt.
  • the gear lever When the gear lever is moved away from the connector end, the ISOFIX connector can be pulled out from below the base portion.
  • the lever is returned to the upper end of the guide rail under the action of the elastic member, and the lever is located forward of the connector end.
  • the connector end restricts the ISOFIX connector from retracting by restricting the back lever to the rear of the connection end, thereby facilitating the connection between the connection end of the ISOFIX connector and the car interface.
  • the purpose of the utility model is to provide an ISOFIX non-return two-way lock mechanism.
  • the ISOFIX non-return two-lock mechanism can prevent the ISOFIX component from retracting after being pulled out, so that the ISOFIX component can be smoothly connected to the car interface.
  • An ISOFIX non-return two-way lock mechanism includes a base and an ISOFIX assembly.
  • a bracket is fixedly arranged on the upper end of the base, and the bracket is provided with a through slot penetrating through the bracket.
  • a moving stopper, the lower end of the stopper is provided with a stopper slope, and a stopper return spring is connected between the stopper and the bracket;
  • the ISOFIX component is fixed to the base and slides
  • the ISOFIX assembly includes a limit rod located between the base and the bracket;
  • the limit rod when the ISOFIX assembly moves between the base and the bracket, the limit rod also moves between the base and the bracket.
  • the limit lever moves toward the stopper to abut the inclined surface of the stopper.
  • the stopper will move upward under the action of the limit lever, and the stopper The return spring goes into tension.
  • the limit lever moves to be separated from the inclined surface of the stopper, the stopper will move downward under the action of its own gravity and the stopper return spring, so the limiter rod will abut the plane of the stopper and be restricted by the stopper. Can't retract.
  • the utility model is further provided that: the stopper is provided with a card slot, and a slider is provided in the card slot.
  • the slider includes a driving portion and a slider connecting portion connected integrally, and an upper end of the driving portion is provided with A slant surface of the slider, and the slider connecting portion is connected with a driving member for driving the slider to move in the card slot.
  • the driving member drives the slider connection portion to move in the card slot, and drives the driving portion to move in the card slot.
  • the driving part drives the slant surface of the slider abuts against the groove wall of the stopper block, thereby driving the stopper block to move upward, causing the stop lever to lose contact with the plane of the stop block.
  • the driving member includes a cable connected to the slider connecting portion and a button assembly connected to the cable
  • the button component includes a force applying portion, a limiting portion and a button connecting portion connected integrally
  • the limiting portion is provided with a waist-shaped groove penetrating the limiting portion, and the waist-shaped groove is provided with a screw threadedly connected to the base and movable along the waist-shaped groove relative to the limiting portion.
  • the force applying portion when a force is applied to the force applying portion, the force applying portion can use a cable to drive the slider connection portion to move.
  • the combination of the waist-shaped groove and the screw prevents the button assembly from being separated from the base while keeping moving.
  • the utility model is further provided that: the base is provided with a partition, and the partition is provided with a button return spring, and an end of the button return spring away from the partition is in contact with the limiting portion.
  • the cable includes a slider segment connected to the slider connecting portion, a button segment connected to the button connecting portion, and a transit segment connecting the slider segment and the button segment, the slider segment and the button
  • the sections each include a positioning rod and a connecting rod that is vertically connected to the middle of the positioning rod and is connected to the transit section;
  • the slider connecting portion and the button connecting portion are both provided with a positioning hole for the positioning rod to be snapped in and an L-shaped groove for the connecting rod to be snapped in.
  • the two positioning holes respectively penetrate the slider connection portion and the button connection portion.
  • the positioning hole is parallel to one side of the corresponding L-shaped groove, and the L-shaped groove extends from the upper end surfaces of the slider connecting portion and the button connecting portion to the positioning hole, and the width of the L-shaped groove is smaller than that of the corresponding positioning.
  • the pore size is
  • the positioning rod is first aligned with the positioning hole, and the positioning rod is slid into the positioning hole, and the connecting rod is simultaneously Slide into the side of the L-shaped groove parallel to the positioning hole.
  • the connecting rod is driven to rotate around the axis of the positioning rod until the connecting rod snaps into the side of the vertical positioning hole of the L-shaped groove.
  • the utility model is further provided that: the bracket is provided with a relay hole for passing through the transit section and a connecting groove for passing the connecting rod, and the connecting slot and the relay hole both penetrate the end face of the bracket, and the connecting slot is located at the relay The hole is above and communicates with the relay hole, and the width of the connection groove is smaller than the diameter of the relay hole.
  • the connecting rod penetrates into the connecting groove and then into the intermediate hole, and then the intermediate section is driven into the intermediate hole by the connecting rod, so that the intermediate section can only move in the intermediate hole.
  • the utility model is further provided that: a support plate is fixedly arranged on the base, the bracket and the support plate are fixedly connected, and the cross bar is located between the base and the support plate.
  • the utility model is further provided that: one of the support plates is provided with a communication hole for passing the transit section, and the base is provided with a support seat for supporting the transit section.
  • the arrangement of the communication hole and the support base plays the role of setting up the stay cable.
  • the utility model is further provided that the support plate is provided with a sliding hole penetrating through the support plate, and two ends of the limit rod pass through the sliding holes of the two support plates respectively and are fixedly connected with the cross bar.
  • the utility model has the following beneficial effects:
  • brackets, stops, stop return springs and limit rods to prevent the ISOFIX assembly from retracting
  • FIG. 1 is a schematic diagram of a three-dimensional structure of an ISOFIX component before taking it out according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of a three-dimensional structure of a base in an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a three-dimensional structure of an ISOFIX assembly in the embodiment of the utility model
  • FIG. 4 is a perspective view of a three-dimensional structure with the bracket, the stopper return spring, the stopper, and the slider separated according to the embodiment of the present invention
  • FIG. 5 is an enlarged view of an area A in FIG. 1;
  • FIG. 6 is a schematic plan view of the structure of the bracket, the stopper return spring, the stopper and the slider in the embodiment of the utility model;
  • FIG. 7 is a perspective structural view of a cable, a button assembly, a button return spring, and a screw in an embodiment of the present invention
  • FIG. 8 is a schematic plan view of a structure of an ISOFIX assembly before being taken out according to an embodiment of the present invention.
  • FIG. 9 is a schematic plan view of the structure of the ISOFIX assembly in the embodiment of the utility model.
  • FIG. 10 is a schematic plan view of the ISOFIX assembly in the embodiment of the utility model after being taken out;
  • FIG. 11 is a schematic perspective view of a three-dimensional structure when a button assembly is pressed in an embodiment of the present invention.
  • FIG. 12 is an enlarged view of a region B in FIG. 11; FIG.
  • FIG. 13 is a schematic plan view of a structure of a button assembly according to an embodiment of the present invention.
  • FIG. 14 is a schematic plan view of the retracted ISOFIX assembly in the embodiment of the utility model.
  • an ISOFIX non-return two-lock mechanism includes a base 1 and an ISOFIX assembly 2.
  • the base 1 includes a bottom plate 3, a front plate 4, two side plates 5, and a rear plate 6.
  • the front plate 4, the two side plates 5 and the rear plate 6 are integrally connected to the periphery of the bottom plate 3.
  • the portions of the bottom plate 3 and the side plate 5 near the rear plate 6 are notched, so that the portions of the bottom plate 3 and the side plate 5 near the rear plate 6 are separated from each other.
  • the bottom plate 3 is provided with two support plates 7 which are perpendicular to the bottom plate 3 and parallel to each other.
  • the two support plates 7 are respectively connected to the joints between the two side plates 5 and the rear plate 6. A portion of the two support plates 7 far from the rear plate 6 is connected to the bottom plate 3, and a portion near the rear plate 6 is separated from the bottom plate 3.
  • the ISOFIX assembly 2 includes a connecting rod 8, handles 9 connected to both ends of the connecting rod 8, and a connector 10 connected to a child safety seat, a cross rod 11 vertically connected to the middle of the connecting rod 8, and a vertical connection to the horizontal Sliding rods 12 at both ends of the rod 11 and connected to the car interface, and a limit rod 13 is provided on the fixed frame above the cross rod 11.
  • the connecting rod 8 is located between the two support plates 7 and abuts the bottom plate 3.
  • the link 8 is movable in a direction parallel to the two support plates 7.
  • the rear plate 6 is provided with a movable groove 14.
  • One end of the connecting rod 8 passes through the movable groove 14 and further extends to be connected with the handle 9.
  • the cross bar 11 is located between the support plate 7 and the bottom plate 3 and is movable in a separation area between the support plate 7 and the bottom plate 3.
  • the supporting plate 7 is provided with a sliding hole 15 penetrating through the supporting plate 7.
  • the two ends of the limit rod 13 pass through the sliding holes 15 of the two supporting plates 7 and are fixedly connected to the cross rod 11. To the sliding hole 15.
  • a bracket 16 is fixedly connected to the upper end of the support plate 7, so that the bracket 16 is also located above the ISOFIX assembly 2.
  • the bracket 16 has a rectangular parallelepiped shape as a whole, in which three side walls are closely attached to the two support plates 7 and the rear plate 6, respectively, and one side wall is suspended.
  • the bracket 16 is provided with a rectangular through groove 17 penetrating through the bracket 16, and the through groove 17 is provided with a stopper 18 that can be moved up and down along the through groove 17.
  • the groove 17 fits.
  • the upper end of the stopper 18 is located above the bracket 16, and the lower end of the stopper 18 is located below the bracket 16.
  • a movable ear plate 19 is provided on two opposite sides of the upper end of the stopper 18, and a fixed ear plate 20 is provided on a side of the bracket 16 near the upper end of the stopper 18.
  • a stopper return spring 21 is connected between the movable ear plate 19 and the fixed ear plate 20. Before the ISOFIX assembly 2 is taken out, the stopper return spring 21 is compressed by the gravity of the stopper 18.
  • the stopper return spring 21 When the stopper 18 moves upward relative to the support 16, the stopper return spring 21 first recovers from the compressed state and then enters the stretched state. Therefore, the stopper 18 tends to move downward due to its own gravity and the action of the stopper return spring 21.
  • a stopper inclined surface 22 is provided at the lower end of the stopper 18. Before the ISOFIX assembly 2 is taken out, the lower end of the stopper 18 and the height of the limit rod 13 are flush. As the handle 9 is used, when the ISOFIX component 2 moves away from the base 1, the limit lever 13 will move along the slide hole 15 toward the stopper 18 until the stopper lever 13 and the stopper inclined surface 22 of the stopper 18 abut. .
  • the stopper 18 As the limit lever 13 moves further, the stopper 18 is driven to move upward, so that the stopper return spring 21 enters a stretched state. As the limit lever 13 moves further to lose contact with the stopper 18, the stopper 18 moves downward under the action of its own gravity and the stopper return spring 21. At this time, the stopper 18 moves downward to the plane of the stopper 18 and the limit rod 13 abuts under the action of the stopper return spring 21, so that the stopper 18 prevents the limit rod 13 from retracting, thereby blocking the ISOFIX assembly 2 times. Shrunk.
  • the stopper 18 is provided with a latching slot 23 penetrating the stopper 18 along the moving direction of the limit lever 13, and an upper surface of the latching slot 23 is set as a latching inclined surface 24.
  • a slider 25 is provided in the slot 23, and the slider 25 includes a driving portion 26 and a slider connection portion 27 that are integrally connected.
  • An upper end of the driving portion 26 is provided with a slider inclined surface 28, and the slider inclined surface 28 and the slotted inclined surface 24 are attached to each other.
  • a slider cable 29 is connected to the slider connecting portion 27, and a button assembly 30 is connected to an end of the cable 29 remote from the slider connecting portion 27.
  • the button assembly 30 drives the slider connecting portion 27 along the movement direction of the limit rod 13 through the cable 29, so that the slider inclined surface 28 and the slotted inclined surface 24 are relatively moved, so that the stopper 18 is driven by the slider 25 Move up.
  • the button assembly 30 stops acting, the stopper 18 moves downward under the action of the stopper return spring 21, and the slider slanted surface 28 and the slotted slanted surface 24 again move relative to each other, so that the slider 25 moves along the limit lever. 13 Move in the reverse direction.
  • the button assembly 30 includes a force applying portion 31, a limiting portion 32, and a button connecting portion 33 which are integrally connected.
  • the restricting portion 32 is provided with a waist-shaped groove 34 penetrating the restricting portion 32, and a screw 35 threadedly connected to the base 1 and movable along the waist-shaped groove 34 relative to the restricting portion 32 is passed through the waist-shaped groove 34.
  • the slider connection portion 27 and the button connection portion 33 have the same shape.
  • the slider connecting portion 27 and the button connecting portion 33 are each provided with a positioning hole 36 and an L-shaped groove 37. The two positioning holes 36 penetrate the slider connection portion 27 and the button connection portion 33, respectively.
  • the positioning hole 36 is parallel to a side corresponding to the L-shaped groove 37, and the L-shaped groove 37 extends downward from the upper end surfaces of the slider connecting portion 27 and the button connecting portion 33 to communicate with the positioning hole 36.
  • the width of the L-shaped groove 37 is smaller than the diameter of the corresponding positioning hole 36.
  • the cable 29 includes a slider section 38 connected to the slider connecting section 27, a button section 39 connected to the button connecting section 33, and a transition section 40 connecting the slider section 38 and the button section 39.
  • the slider section 38 and the button section 39 each include a positioning rod 41 and a connecting rod 42 that is vertically connected to the middle of the positioning rod 41 and is connected to the transit section 40. Wherein, the positioning rod 41 is just snapped into the positioning hole 36, and the connecting rod 42 is snapped into the L-shaped groove 37.
  • the positioning rod 41 is first aligned with the positioning hole 36, and the positioning rod 41 is slid into the positioning hole 36 to connect.
  • the rod 42 slides into the side of the L-shaped groove 37 parallel to the positioning hole 36 at the same time.
  • the connecting rod 42 is driven to rotate about the axis of the positioning rod 41 until the connecting rod 42 snaps into the vertical positioning hole of the L-shaped groove 37.
  • One side of 36 is sufficient.
  • the bracket 16 is provided with a relay hole 43 for the relay section 40 to pass through and a connecting groove 44 for the lever 42 to pass through.
  • Both the relay hole 43 and the connecting groove 44 penetrate the suspended side wall of the bracket 16.
  • the connecting groove 44 is located above the relay hole 43 and communicates with the relay hole 43.
  • the width of the connecting groove 44 is smaller than the diameter of the intermediate hole 43.
  • the connecting rod 42 penetrates into the connecting groove 44 and then into the intermediate hole 43, and then the intermediate section 40 is driven into the intermediate hole 43 by the connecting rod 42, so that the intermediate section 40 can only move in the intermediate hole 43.
  • one of the support plates 7 is provided with a communication hole 45 for the transit section 40 to pass through.
  • Mobile A support base 46 for supporting the transition section 40 is also provided on the bottom plate 3.
  • the communication holes 45 and the support base 46 are provided to play a role of setting up the stay cable 29.
  • a partition plate 47 is provided on the bottom plate 3.
  • a button return spring 48 is fixedly disposed on the partition plate 47. An end of the button return spring 48 away from the partition plate 47 abuts against the limiting portion 32.
  • the button return spring 48 is in a compressed state. The movement of the urging portion 31 drives the slider 25 to move through the limit portion 32, the button connecting portion 33, the cable 29, and the slider connecting portion 27.
  • the stopper 18 moves downward under the action of the stopper return spring 21, so that the slider 25 moves in the reverse direction, which drives the urging portion 31 to move in the reverse direction, and on the other hand, the button is reset.
  • the spring 48 also drives the biasing portion 31 to move in the opposite direction.
  • the front plate 4 is also provided with a limited opening 49 so that the force applying portion 31 can protrude from the front plate 4 from the limiting opening 49 so that people can press the force applying portion 31 to operate.
  • the urging portion 31 gradually decreases from an end near the limiting portion 32 to an end distant from the limiting portion 32, and the size of the limiting port 49 allows only the urging portion 31 to pass through.
  • the ISOFIX assembly 2 needs to be retracted. 11, 12, and 13, pressing the urging portion 31 causes the urging portion 31 to move, thereby driving the limit portion 32 to move, and the button return spring 48 to be compressed.
  • the limiting portion 32 drives the button connecting portion 33 to move, and the button connecting portion 33 moves the slider connecting portion 27 through the cable 29, and further drives the driving portion 26 to slide into the slot 23, so that the slider slope 28 and the slot groove 24 occur.
  • the relative movement causes the stopper 18 to move upward under the driving of the slider 25, and the stopper return spring 21 enters a stretched state.
  • the limit lever 13 is no longer in contact with the plane of the stopper 18, so that the limit lever 13 is no longer limited by the stopper 18, so that the ISOFIX component 2 can be retracted.
  • the pressing of the urging portion 31 is stopped, and the limiting portion 32 is moved in the reverse direction by the action of the button return spring 48, which drives the urging portion 31 to move in the reverse direction.
  • the stopper reset spring 21 is reset, the stopper 18 moves downward, and the slider slanted surface 28 and the slotted slanted surface 24 again move relative to each other, so that the slider 25 moves in the reverse direction along the movement direction of the limit rod 13,
  • the cable 29 drives the button connecting portion 33 to move in the reverse direction, and then drives the limiting portion 32 and the force applying portion 31 to move in the reverse direction.

Abstract

一种ISOFIX止退二道锁机构，包括底座（1）和ISOFIX组件（2），底座（1）上端设置有支架（16），支架（16）设置有通槽（17），通槽（17）内设置有挡块（18），挡块（18）的下端设置有挡块斜面（22），挡块（18）和支架（16）之间连接有挡块复位弹簧（21）；ISOFIX组件（2）包括限位杆（13），当限位杆（13）移动至与挡块斜面（22）抵接时，挡块（18）沿着通槽（17）向上移动，挡块复位弹簧（21）发生弹性形变；当限位杆（13）进一步移动至失去和挡块（18）的抵接时，挡块（18）在挡块复位弹簧（21）的作用下向下移动至挡块（18）的平面和限位杆（13）抵接。

Description

一种ISOFIX止退二道锁机构 技术领域
本实用新型涉及儿童安全座椅零部件，特别涉及一种ISOFIX止退二道锁机构。
背景技术
儿童安全座椅是安装在汽车内且用于提高儿童乘车安全性的座椅。在汽车发生碰撞或突然减速的情况下，儿童安全座椅能够减缓对儿童的冲击力和限制儿童的身体移动来减少对他们的伤害，确保儿童的乘车安全。
授权公告号为CN207257443U的中国专利公开了一种具有ISOFIX止退结构的安全座椅。该安全座椅从上往下依次包括座椅部、底座部和ISOFIX连接器。座椅部与底座部分离连接，ISOFIX连接器滑动连接于底座部的底面。ISOFIX连接器的前端为与汽车接口连接的连接端，ISOFIX连接器的后端的侧壁设置有竖直朝向的导轨。导轨内设置有可沿着导轨移动的档杆，档杆通过弹性件保持在导轨的上端。档杆连接有拉带，而在ISOFIX连接器的中部设置有拉带压杆，拉带压杆在导轨的下方。拉带从拉带压杆的下方穿过，从而当拉带受到拉力带动档杆移动时，档杆受到拉带倾斜向下的作用力而沿着导轨向下移动。
该安全座椅还包括位于底座部底面下方的止退部件，止退部件包括止退转块和止退杆。止退转块的中部通过转轴可转动地设于底座部底面，止退转块的一端为座椅端，另一端形成安装槽。底座部的底面 设置有通孔，而止退转块的座椅端恰好卡入通孔。安装槽中安装有呈U形的止退杆。止退杆的中部位于安装槽中，而止退杆的两端向下延伸形成连接器端。止退转块的上表面和底座底面之间设置有弹性元件。弹性元件位于安装槽和转轴之间。
初始状态，ISOFIX连接器位于底座部的下方，档杆抵接于连接器端的后方。施力于拉带，档杆受到拉带倾斜向下的作用力而沿着导轨向下移动，当档杆移动至和连接器端分离时，可将ISOFIX连接器从底座部的下方拉出。此时，停止施力于拉带，则档杆在弹性件的作用下回到导轨的上端，档杆位于连接器端的前方。连接器端通过限制档杆回到连接端的后方从而限制ISOFIX连接器回缩，从而便于进行ISOFIX连接器的连接端与汽车接口连接。
基于此，本发明人希望提供另一种防止ISOFIX连接器回缩的ISOFIX止退机构。
实用新型内容
本实用新型的目的是提供一种ISOFIX止退二道锁机构。在安装儿童安全座椅时，该ISOFIX止退二道锁机构能够避免ISOFIX组件拉出后发生回缩，从而使ISOFIX组件能够顺利与汽车接口连接。
本实用新型的上述技术目的是通过以下技术方案得以实现的：
一种ISOFIX止退二道锁机构，包括底座和ISOFIX组件，所述底座的上端固定设置有支架，所述支架设置有贯穿支架的通槽，所述通槽内设置有可沿着通槽上下移动的挡块，所述挡块的下端设置有挡块斜面，所述挡块和支架之间连接有挡块复位弹簧；
所述ISOFIX组件与底座和滑动固定；
所述ISOFIX组件包括位于底座和支架之间的限位杆；
当限位杆移动至与挡块斜面抵接时，挡块沿着通槽向上移动，挡块复位弹簧发生弹性形变；当限位杆进一步移动至失去和挡块的抵接时，挡块在挡块复位弹簧的作用下向下移动至挡块的平面和限位杆抵接。
通过采用上述技术方案，当ISOFIX组件在底座和支架之间移动时，限位杆也在底座和支架之间移动。在将ISOFIX组件拉出过程中，限位杆朝挡块移动至与挡块斜面抵接，此时，随着限位杆进一步移动，挡块会在限位杆的作用下向上移动，挡块复位弹簧进入拉伸状态。当限位杆移动至和挡块斜面分离时，挡块会在自身重力和挡块复位弹簧的作用下向下移动，从而限位杆会与挡块的平面抵接并受到挡块的限制而无法回缩。
本实用新型进一步设置为：所述挡块设置有卡槽，所述卡槽中设置有滑块，所述滑块包括一体连接的驱动部和滑块连接部，所述驱动部的上端设置有滑块斜面，所述滑块连接部连接有用于驱动滑块在卡槽中移动的驱动件。
通过采用上述技术方案，利用驱动件驱动滑块连接部在卡槽中移动，带动驱动部在卡槽中移动。而在驱动部的移动过程中，滑块斜面与挡块的卡槽槽壁抵接，从而带动挡块向上运动，使限位杆失去和挡块的平面抵接，从而限位杆可在支架和底座之间移动实现ISOFIX组件的回缩。
本实用新型进一步设置为：所述驱动件包括与滑块连接部连接的拉索和与拉索连接的按钮组件，所述按钮组件包括一体连接的施力部、限位部和按钮连接部，所述限位部设置有贯穿限位部的腰型槽，所述腰型槽中穿设有与底座螺纹连接并可沿着腰型槽相对限位部移动的螺丝。
通过采用上述技术方案，当施力于施力部，则施力部能够利用拉索带动滑块连接部移动。而腰型槽和螺丝的配合使按钮组件在保持移动的同时避免与底座分离。
本实用新型进一步设置为：所述底座设置有隔板，所述隔板上设置有按钮复位弹簧，所述按钮复位弹簧远离隔板的一端与限位部抵接。
通过采用上述技术方案，当施力部受力并发生移动时，限位部会随着施力部发生移动，从而按钮复位弹簧受到限位部的挤压而发生压缩。当施力部停止受力时，按钮复位弹簧会作用于限位部，使按钮组件复位。
本实用新型进一步设置为：所述拉索包括与滑块连接部连接的滑块段、与按钮连接部连接的按钮段和连接滑块段和按钮段的中转段，所述滑块段和按钮段均包括定位杆和垂直连接于定位杆中部且与中转段连接的连接杆；
所述滑块连接部和按钮连接部均设置有用于定位杆卡入的定位孔和用于连接杆卡入的L型槽，两个所述定位孔分别贯穿滑块连接部和按钮连接部，所述定位孔平行于对应L型槽的一边，所述L型槽从 滑块连接部和按钮连接部的上端面一直向下延伸至与定位孔连通，所述L型槽的宽度小于对应定位孔的孔径。
通过采用上述技术方案，当滑块连接部和按钮连接部分别需要与滑块段和按钮段连接时，先将定位杆对准定位孔，并使定位杆滑入定位孔中，而连接杆同时滑入L型槽与定位孔平行的一边。当定位杆移动至连接杆对准L型槽垂直定位孔的一边时，驱动连接杆绕着定位杆的轴心线转动至连接杆卡入L型槽垂直定位孔的一边即可。
本实用新型进一步设置为：所述支架设置有用于中转段穿过的中转孔和用于连接杆穿过的连接槽，所述连接槽和中转孔均贯穿支架的端面，所述连接槽位于中转孔的上方且与中转孔连通，所述连接槽的宽度小于中转孔的孔径。
通过采用上述技术方案，连接杆穿入连接槽后再穿入中转孔中，然后中转段在连接杆的带动下穿入中转孔中，从而使中转段只能在中转孔中移动。
本实用新型进一步设置为：所述底座固定设置有支撑板，所述支架和支撑板固定连接，所述横杆位于底座和支撑板之间。
本实用新型进一步设置为：其中一块所述支撑板设置有用于中转段穿过的连通孔，所述底座设置有用于支撑中转段的支撑座。
通过采用上述技术方案，连通孔和支撑座的设置起到架设拉索的作用。
本实用新型进一步设置为：所述支撑板设置贯穿支撑板的滑动孔，所述限位杆的两端分别穿过两块支撑板的滑动孔后与横杆固定连接。
综上所述，本实用新型具有以下有益效果：
1、利用支架、挡块、挡块复位弹簧和限位杆的配合避免ISOFIX组件的回缩；
2、利用按钮组件、拉索、滑块、挡块、支架和挡块复位弹簧的配合取消对ISOFIX组件回缩的限制，实现ISOFIX组件的回缩。
附图说明
图1为本实用新型实施例ISOFIX组件取出前的立体结构示意图；
图2为本实用新型实施例中底座的立体结构示意图；
图3为本实用新型实施例中ISOFIX组件的立体结构示意图；
图4为本实用新型实施例中支架、挡块复位弹簧、挡块和滑块分离的立体结构示意图；
图5为图1中A区域的放大图；
图6为本实用新型实施例中支架、挡块复位弹簧、挡块和滑块连接后的平面结构示意图；
图7为本实用新型实施例中拉索、按钮组件、按钮复位弹簧和螺丝分离的立体结构图；
图8为本实用新型实施例中ISOFIX组件取出前的平面结构示意图；
图9为本实用新型实施例中ISOFIX组件取出过程中的平面结构示意图；
图10为本实用新型实施例中ISOFIX组件取出后的平面结构示意图；
图11为本实用新型实施例中按下按钮组件时的立体结构示意图；
图12为图11中B区域的放大图；
图13为本实用新型实施例中按下按钮组件时的平面结构示意图；
图14为本实用新型实施例中ISOFIX组件回缩后的平面结构示意图。
附图标记：1、底座；2、ISOFIX组件；3、底板；4、前板；5、侧板；6、后板；7、支撑板；8、连杆；9、手柄；10、连接器；11、横杆；12、滑杆；13、限位杆；14、活动槽；15、滑动孔；16、支架；17、通槽；18、挡块；19、活动耳板；20、固定耳板；21、挡块复位弹簧；22、挡块斜面；23、卡槽；24、卡槽斜面；25、滑块；26、驱动部；27、滑块连接部；28、滑块斜面；29、拉索；30、按钮组件；31、施力部；32、限位部；33、按钮连接部；34、腰型槽；35、螺丝；36、定位孔；37、L型槽；38、滑块段；39、按钮段；40、中转段；41、定位杆；42、连接杆；43、中转孔；44、连接槽；45、连通孔；46、支撑座；47、隔板；48、按钮复位弹簧；49、限位口。
具体实施方式
以下结合附图对本实用新型作进一步详细说明。
参照图1，一种ISOFIX止退二道锁机构，包括底座1和ISOFIX组件2。
参照图2，底座1包括底板3、前板4、两块侧板5和后板6。前板4、两块侧板5和后板6一体连接于底板3的周围。底板3和侧板5靠近后板6的部分存在缺口，从而底板3和侧板5靠近后板6的部 分相互分离。底板3上设置有垂直于底板3且相互平行的两块支撑板7。两块支撑板7分别连接于两块侧板5与后板6的连接处。两块支撑板7远离后板6的部分与底板3连接，靠近后板6的部分与底板3分离。
参照图3，ISOFIX组件2包括连杆8、分别连接于连杆8两端的手柄9和与儿童安全座椅连接的连接器10、垂直连接于连杆8中部的横杆11、垂直连接于横杆11两端且与汽车接口连接的滑杆12，横杆11上方固定架设有限位杆13。
参照图1、2和3，在ISOFIX和底座1进行装配时，连杆8位于两块支撑板7中间且与底板3抵接。连杆8可沿着平行于两块支撑板7的方向移动。后板6设置有活动槽14，连杆8的一端穿过活动槽14后进一步延伸至与手柄9连接。横杆11位于支撑板7和底板3之间，并可在支撑板7和底板3分离区域移动。而支撑板7上设置有贯穿支撑板7的滑动孔15，限位杆13的两端分别穿过两块支撑板7的滑动孔15后与横杆11固定连接，从而限位杆13可以沿着滑动孔15移动。
参照图1，支撑板7的上端固定连接有支架16，从而支架16也位于ISOFIX组件2的上方。支架16整体呈长方体状，其中三块侧壁分别和两块支撑板7和后板6紧贴，还有一块侧壁悬空。
参照4、5和6，支架16设置有贯穿支架16且呈长方形的通槽17，而通槽17内设置有可沿着通槽17上下移动的挡块18，挡块18的四周均和通槽17贴合。挡块18的上端位于支架16的上方，挡块 18的下端位于支架16的下方。挡块18的上端相对的两侧均设置有活动耳板19，支架16靠近挡块18的上端的一侧设置有固定耳板20。活动耳板19和固定耳板20之间连接有挡块复位弹簧21。在ISOFIX组件2取出前，挡块复位弹簧21受到挡块18重力的作用而处于压缩状态。当挡块18相对支架16向上运动时，挡块复位弹簧21先从压缩状态恢复形变进而进入拉伸状态。因此挡块18受到自身重力和挡块复位弹簧21的作用下有向下运动的趋势。挡块18的下端设置有挡块斜面22。在ISOFIX组件2取出前，挡块18的下端和限位杆13的高度齐平。当作用于手柄9，使ISOFIX组件2朝远离底座1方向发生移动时，限位杆13会沿着滑动孔15朝挡块18移动至限位杆13和挡块18的挡块斜面22抵接。随着限位杆13进一步移动，带动挡块18向上运动，从而挡块复位弹簧21进入拉伸状态。而随着限位杆13进一步移动至失去和挡块18的抵接时，挡块18在自身重力和挡块复位弹簧21的作用下向下运动。此时，挡块18在挡块复位弹簧21的作用下向下移动至挡块18的平面和限位杆13抵接，从而挡块18阻挡限位杆13回缩，进而阻挡ISOFIX组件2回缩。
参照图4和9，挡块18设置有沿着限位杆13移动方向贯穿挡块18的卡槽23，卡槽23的上表面设置为卡槽斜面24。卡槽23中设置有滑块25，滑块25包括一体连接的驱动部26和滑块连接部27。驱动部26的上端设置有滑块斜面28，滑块斜面28和卡槽斜面24贴合。
参照图1和5，滑块连接部27连接有拉索29，拉索29远离滑块连接部27的一端连接有按钮组件30。按钮组件30通过拉索29带动 滑块连接部27沿着限位杆13移动方向移动，从而使滑块斜面28和卡槽斜面24发生相对运动，从而使挡块18在滑块25的带动下向上运动。而当停止作用于按钮组件30时，挡块18在挡块复位弹簧21的作用下向下运动，滑块斜面28和卡槽斜面24再次发生相对运动，从而使滑块25沿着限位杆13移动方向进行反向移动。
参照图1和7，其中，按钮组件30包括一体连接的施力部31、限位部32和按钮连接部33。限位部32设置有贯穿限位部32的腰型槽34，腰型槽34中穿设有与底座1螺纹连接并可沿着腰型槽34相对限位部32移动的螺丝35。滑块连接部27和按钮连接部33的形状相同。滑块连接部27和按钮连接部33均设置有定位孔36和L型槽37。两个定位孔36分别贯穿滑块连接部27和按钮连接部33。定位孔36平行于对应L型槽37的一边，L型槽37从滑块连接部27和按钮连接部33的上端面一直向下延伸至与定位孔36连通。L型槽37的宽度小于对应定位孔36的孔径。
参照图1、5和7，拉索29包括与滑块连接部27连接的滑块段38、与按钮连接部33连接的按钮段39和连接滑块段38和按钮段39的中转段40。滑块段38和按钮段39均包括定位杆41和垂直连接于定位杆41中部且与中转段40连接的连接杆42。其中，定位杆41恰好卡入定位孔36，而连接杆42卡入L型槽37中。当滑块连接部27和按钮连接部33分别需要与滑块段38和按钮段39连接时，先将定位杆41对准定位孔36，并使定位杆41滑入定位孔36中，而连接杆42同时滑入L型槽37与定位孔36平行的一边。当定位杆41移动至 连接杆42对准L型槽37垂直定位孔36的一边时，驱动连接杆42绕着定位杆41的轴心线转动至连接杆42卡入L型槽37垂直定位孔36的一边即可。
参照图4和5，为了更好地实现滑块段38和滑块连接部27连接时，支架16设置有用于中转段40穿过的中转孔43和用于连接杆42穿过的连接槽44。中转孔43和连接槽44均贯穿支架16悬空的侧壁。连接槽44位于中转孔43的上方且与中转孔43连通。连接槽44的宽度小于中转孔43的孔径。连接杆42穿入连接槽44后再穿入中转孔43中，然后中转段40在连接杆42的带动下穿入中转孔43中，从而使中转段40只能在中转孔43中移动。
参照图1，为了更好地利用拉索29连接按钮组件30和滑块连接部27，其中一块支撑板7上设置有用于中转段40穿过的连通孔45，中转段40可以在连通孔45中移动。而在底板3上也设置有用于支撑中转段40的支撑座46。连通孔45和支撑座46的设置起到架设拉索29的作用。
参照图1和2，底板3上设置有隔板47，隔板47固定设置有按钮复位弹簧48，按钮复位弹簧48远离隔板47的一端与限位部32抵接。当按压施力部31，带动施力部31沿着限位杆13移动方向移动时，按钮复位弹簧48处于压缩状态。而施力部31的移动通过限位部32、按钮连接部33、拉索29、滑块连接部27带动滑块25移动。当停止按压施力部31时，一方面挡块18在挡块复位弹簧21的作用下向下运动，使滑块25反向移动，带动施力部31反向移动，另一方面， 按钮复位弹簧48也会带动施力部31反向移动。
参照图1，前板4也设置有限位口49，从而施力部31可以从限位口49处凸出于前板4，便于人们按压施力部31进行操作。施力部31从靠近限位部32的一端往远离限位部32的一端逐渐变小，而限位口49的大小只允许施力部31部分通过。
工作过程：当儿童安全座椅安装时，需要将ISOFIX组件2拉出。参照图8，此时，作用于手柄9，带动ISOFIX组件2在底板3和支架16之间朝远离底座1方向移动，从而限位杆13也在底板3和支架16之间沿着滑动孔15朝向挡块18移动。在限位杆13移动过程中，限位杆13会移动至与挡块斜面22抵接。参照图9，此时，限位杆13进一步移动，挡块18会在限位杆13的作用下沿着通槽17向上移动，挡块复位弹簧21进入拉伸状态。参照图10，当限位杆13移动至和挡块斜面22分离时，挡块18会在自身重力和挡块复位弹簧21的作用下沿着通槽17向下移动，从而限位杆13会与挡块18的平面抵接并受到挡块18的限制而无法回缩。
当儿童安全座椅安装到车上后需要调整儿童安全座椅椅背和汽车座椅之间的距离或需要将儿童安全座椅从汽车上拆除时，需要回缩ISOFIX组件2。参照图11、12和13，按压施力部31，使施力部31发生移动，从而带动限位部32发生移动，按钮复位弹簧48发生压缩。限位部32带动按钮连接部33移动，而按钮连接部33通过拉索29带动滑块连接部27移动，进而带动驱动部26滑入卡槽23，使滑块斜面28和卡槽斜面24发生相对运动，从而使挡块18在滑块25的带动 下向上运动，挡块复位弹簧21进入拉伸状态。此时，限位杆13不再与挡块18的平面抵接，从而限位杆13不再受到挡块18的限位，从而ISOFIX组件2可以进行回缩。
参照图14，当ISOFIX组件2完成回缩后，停止按压施力部31，限位部32受到按钮复位弹簧48的作用而反向移动，带动施力部31反向运动。同时，挡块复位弹簧21复位，挡块18向下运动，滑块斜面28和卡槽斜面24再次发生相对运动，从而使滑块25沿着限位杆13移动方向进行反向移动，利用拉索29带动按钮连接部33反向移动，进而带动限位部32和施力部31反向移动。
本实施例仅仅是对本实用新型的解释，其并不是对本实用新型的限制，本领域技术人员在阅读完本说明书后可以根据需要对本实施例做出没有创造性贡献的修改，但只要在本实用新型的权利要求范围内都受到专利法的保护。

Claims (9)

  1. 一种ISOFIX止退二道锁机构，包括底座(1)和ISOFIX组件(2)，其特征是：所述底座(1)的上端固定设置有支架(16)，所述支架(16)设置有贯穿支架(16)的通槽(17)，所述通槽(17)内设置有可沿着通槽(17)上下移动的挡块(18)，所述挡块(18)的下端设置有挡块斜面(22)，所述挡块(18)和支架(16)之间连接有挡块复位弹簧(21)；
    所述ISOFIX组件(2)与底座(1)滑动固定；
    所述ISOFIX组件(2)包括位于底座和支架之间的限位杆(13)；
    当限位杆(13)移动至与挡块斜面(22)抵接时，挡块(18)沿着通槽(17)向上移动，挡块复位弹簧(21)发生弹性形变；当限位杆(13)进一步移动至失去和挡块(18)的抵接时，挡块(18)在挡块复位弹簧(21)的作用下向下移动至挡块(18)的平面和限位杆(13)抵接。
  2. 根据权利要求1所述的ISOFIX止退二道锁机构，其特征是：所述挡块(18)设置有卡槽(23)，所述卡槽(23)中设置有滑块(25)，所述滑块(25)包括一体连接的驱动部(26)和滑块连接部(27)，所述驱动部(26)的上端设置有滑块斜面(28)，所述滑块连接部(27)连接有用于驱动滑块(25)在卡槽(23)中移动的驱动件。
  3. 根据权利要求2所述的ISOFIX止退二道锁机构，其特征是：所述驱动件包括与滑块连接部(27)连接的拉索(29)和与拉索(29)连接的按钮组件(30)，所述按钮组件(30)包括一体连接的施力部(31)、限位部(32)和按钮连接部(33)，所述限位部(32)设置有贯穿限位部(32)的腰型槽(34)，所述腰型槽(34)中穿设有与底座(1)螺纹连接并可沿着腰型槽(34)相对限位部(32)移动的螺丝(35)。
  4. 根据权利要求3所述的ISOFIX止退二道锁机构，其特征是：所述底座(1)设置有隔板(47)，所述隔板(47)上设置有按钮复位弹簧(48)，所述按钮复位弹簧(48)远离隔板(47)的一端与限位部(32)抵接。
  5. 根据权利要求3所述的ISOFIX止退二道锁机构，其特征是：所述拉索(29)包括与滑块连接部(27)连接的滑块段(38)、与按钮连接部(33)连接的按钮段(39)和连接滑块段(38)和按钮段(39)的中转段(40)，所述滑块段(38)和按钮段(39)均包括定位杆(41)和垂直连接于定位杆(41)中部且与中转段(40)连接的连接杆(42)；
    所述滑块连接部(27)和按钮连接部(33)均设置有用于定位杆(41)卡入的定位孔(36)和用于连接杆(42)卡入的L型槽(37)，两个所述定位孔(36)分别贯穿滑块连接部(27)和按钮连接部(33)，所述定位孔(36)平行于对应L型槽(37)的一边，所述L型槽(37)从滑块连接部(27)和按钮连接部(33)的上端面一直向下延伸至与定位孔(36)连通，所述L型槽(37)的宽度小于对应定位孔(36)的孔径。
  6. 根据权利要求5所述的ISOFIX止退二道锁机构，其特征是：所述支架(16)设置有用于中转段(40)穿过的中转孔(43)和用于连接杆(42)穿过的连接槽(44)，所述连接槽(44)和中转孔(43)均贯穿支架(16)的端面，所述连接槽(44)位于中转孔(43)的上方且与中转孔(43)连通，所述连接槽(44)的宽度小于中转孔(43)的孔径。
  7. 根据权利要求5所述的ISOFIX止退二道锁机构，其特征是：所述底座(1)固定设置有支撑板(7)，所述支架(16)和支撑板(7)固定连接，所述横杆(11)位于底座(1)和支撑板(7)之间。
  8. 根据权利要求7所述的ISOFIX止退二道锁机构，其特征是：其中一块所述支撑板(7)设置有用于中转段(40)穿过的连通孔(45)，所述底座(1)设置有用于支撑中转段(40)的支撑座(46)。
  9. 根据权利要求7所述的ISOFIX止退二道锁机构，其特征是：所述支撑板(7)设置贯穿支撑板(7)的滑动孔(15)，所述限位杆(13)的两端分别穿过两块支撑板(7)的滑动孔(15)后与横杆(11)固定连接。
PCT/CN2019/095916 2018-07-17 2019-07-14 一种isofix止退二道锁机构 WO2020015596A1 (zh)

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