WO2018196226A1 - 一种座椅可旋转的儿童推车 - Google Patents

一种座椅可旋转的儿童推车 Download PDF

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Publication number
WO2018196226A1
WO2018196226A1 PCT/CN2017/096484 CN2017096484W WO2018196226A1 WO 2018196226 A1 WO2018196226 A1 WO 2018196226A1 CN 2017096484 W CN2017096484 W CN 2017096484W WO 2018196226 A1 WO2018196226 A1 WO 2018196226A1
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WO
WIPO (PCT)
Prior art keywords
seat
gear
stroller
connecting seat
rotating
Prior art date
Application number
PCT/CN2017/096484
Other languages
English (en)
French (fr)
Inventor
彭水毅
Original Assignee
东莞市森王婴儿用品有限公司
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 东莞市森王婴儿用品有限公司 filed Critical 东莞市森王婴儿用品有限公司
Priority to CN201780003033.3A priority Critical patent/CN109153397B/zh
Publication of WO2018196226A1 publication Critical patent/WO2018196226A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B9/00—Accessories or details specially adapted for children's carriages or perambulators
    • B62B9/10—Perambulator bodies; Equipment therefor
    • B62B9/12—Perambulator bodies; Equipment therefor involving parts that are adjustable, attachable or detachable

Definitions

  • the present invention relates to a child product, and more particularly to a child stroller with a seat that can be rotated.
  • a stroller generally includes a frame and a seat assembled on the frame.
  • a front and rear rotating frame when The rider hits the back of the seat and leans back, the seat is facing forward; when the rider moves forward, the squat, the parent faces the child in the seat; the second is, when the seat is to be converted back and forth, the seat Remove from the frame, reassemble and assemble to the frame.
  • These two methods can only realize the forward or backward setting of the seat, but can not be positioned to other angles, so it can not meet the different visual needs of the child and the mother, and the second mode operation is particularly troublesome.
  • a seat-rotatable stroller includes a frame, a seat, and a connecting mechanism connecting the frame and the seat, the connecting mechanism including a rotating seat, a locking member, a connecting seat, and a first spring
  • the rotating base is fixedly connected to the seat, the lower end of the rotating base is provided with a first tooth groove;
  • the locking member comprises an annular partition, a first gear extending upward from an upper end surface of the partition a second gear extending downward from the lower end surface of the partition plate;
  • the connecting seat is connected to the frame, the upper end of the rotating base is provided with a second tooth groove;
  • the first spring is placed in the second Abutting against the lower end of the second gear;
  • the rotating base and the connecting seat are rotatably connected to each other, and a gap is disposed between the lower end surface of the rotating base and the upper end surface of the connecting seat, under the action of the first spring
  • the first gear of the locking member meshes with the first tooth groove of the rotating base, and the second gear meshes
  • the bottom wall of the first tooth groove extends downwardly with an upper abutting table, and the bottom of the second tooth groove bottom wall extends upwardly with a lower abutting table, and the upper abutting lower end surface and the lower portion Abut against the upper end of the table.
  • the locking member further includes an annular extending portion extending downward from a periphery of the partition, the extending portion surrounding the upper end of the connecting seat.
  • the outer wall of the extension portion is provided with a plurality of ribs.
  • the rotating base and the connecting seat are relatively rotatably connected by a pin extending up and down, the upper end of the pin is fixedly connected with the rotating base, the lower end is rotatably connected with the connecting seat, or the lower end of the pin is
  • the connecting seat is relatively fixedly connected, and the upper end is rotatably connected to the rotating base.
  • the upper abutting table and the lower abutting table are both disposed in an annular shape, the first spring sleeve is disposed outside the lower abutting platform, and the locking member is also sleeved on the lower abutting platform.
  • the lower end of the pin passes through the lower abutment table and is located in the lower end of the connecting seat, and the lower end of the pin is provided with a neck
  • a transverse pin passes through the neck.
  • the lower end of the connecting seat is provided with left and right lateral through holes at corresponding positions, and two ends of the horizontal pin are respectively inserted into the left and right lateral through holes.
  • an iron piece is disposed between the lower end of the seat and the rotating base, and the upper end of the pin is welded to the iron piece through the upper abutting table, and the iron piece and the rotating base are fixedly connected to The lower end of the seat, such that the pin is fixedly coupled to the rotating base.
  • the frame includes a push rod, two rear leg tubes, a front wheel connected to the lower end of the push rod, and two rear wheels respectively connected to the lower ends of the two rear leg tubes, and the upper ends of the two rear leg tubes are pivotally connected to
  • the push rod is provided with a locking mechanism for restricting relative rotation of the rear leg tube and the push rod between the upper ends of the two rear leg tubes and the push rod, and the lower end of the connecting seat is connected to the push rod.
  • the connecting mechanism further includes a support base, the connecting base is connected to the push rod through the support base, the lower end of the support base is fixedly connected to the push rod, and the upper end is provided with a left and right pivoting body
  • the lower end of the connecting seat is pivotally connected between the left and right pivoting bodies, and a limiting device for limiting the relative rotation of the two is disposed between the lower end of the connecting seat and the supporting base.
  • the limiting device includes a first button, a third gear, a second spring, a third spring, a fourth gear, and a second button in sequence from left to right, and opposite sides of the left and right pivoting bodies are respectively disposed a third tooth groove, a corresponding fourth tooth groove is respectively disposed on the left and right sides of the lower end of the connecting seat, and the left and right ends of the second spring are respectively Abutting against the third gear and the bottom wall of the fourth tooth groove on the left side of the connecting seat; the left and right sides of the third spring respectively abut against the bottom wall of the fourth tooth groove of the right side of the connecting seat and the fourth gear;
  • the button includes a first pressing portion and a first elastic finger extending from the first pressing portion to the right side, and the first elastic finger is coupled to the left side pivot body of the support base and abuts against the third gear
  • the second button includes a second pressing portion and a second elastic finger extending from the second pressing portion to the left side, and the second elastic finger is coupled to the right pivot
  • the seat can be rotated 360 degrees relative to the vertical Y-axis of the frame, rotated to the required angle ⁇ , loosely locked
  • the seat can be positioned at the angle and cannot rotate relative to the frame, so that the seat of the stroller of the present invention can be relatively positioned at a plurality of different angles, can meet the different visual needs of the child and the mother, and change the seat.
  • the operation relative to the frame angle is particularly simple and convenient, just push the locking piece down and the loose lock.
  • FIG. 1 is a perspective view of a child stroller with a seat that is rotatable according to the present invention
  • FIG. 2 is an enlarged schematic view showing a connecting mechanism of a child-rotatable stroller of the present invention
  • FIG. 3 is an exploded enlarged view of the connecting mechanism of the child stroller that can rotate the seat of the present invention
  • FIG. 4 is an enlarged schematic cross-sectional view showing the state in which the connecting mechanism is locked
  • FIG. 5 is an enlarged schematic cross-sectional view showing the state in which the connecting mechanism is unlocked
  • FIG. 6 is an enlarged schematic view of a rotating seat of a child-rotatable stroller of the present invention.
  • FIG. 7 is an enlarged schematic view of the locking member of the stroller of the seat of the present invention.
  • FIG. 8 is an exploded enlarged view of a portion of a connecting mechanism of a stroller that can rotate a seat of the present invention.
  • the convertible stroller of the present invention includes a frame 1, a seat 2, a connecting mechanism 3 connecting the frame 1 and the seat 2, and the connecting mechanism.
  • 3 includes a rotating base 31, a locking member 32, a connecting seat 33 , and a first spring 34.
  • the rotating base 31 is fixedly connected to the seat 2.
  • the lower end of the rotating base 31 is provided with a first tooth groove 311, and the An upper abutment table 312 extends downwardly from the bottom wall of the first tooth groove 311;
  • the locking member 32 includes an annular partition plate 321 , a first gear 322 extending upward from an upper end surface of the partition plate 321 , and a second gear 323 extending downward from the lower end surface of the partition plate 321;
  • the connecting seat 33 and the frame of the frame 1 is provided with a second tooth groove 331, and the second tooth groove a lower abutment table 332 extends upwardly in the middle of the bottom wall of the 331 ;
  • the first spring 34 is disposed in the second slot 331 and abuts against the lower end of the second gear 323;
  • the rotating base 31 and the connecting seat 33 relatively rotatably connected, and the upper end surface 312 abuts against the lower stage abuts on the end surface in abutment table 332, the rotation of the lower end surface of the base 31 and the connecting
  • the first gear 322 of the locking member 32 meshes with the first slot 311 of the rotating base 31, and the second gear 323 and the connecting seat 33 are
  • the second slot 331 is engaged, and the outer end of the partition 321 protrudes outside the gap 310, and the upper and lower heights of the gap 310 are greater than or equal to the total height of the partition 321 and the first gear 322.
  • the connecting mechanism 3 When the first gear 322 of the locking member 32 is engaged with the first slot 311 of the rotating base 31, and the second gear 323 is engaged with the second slot 331 of the connecting seat 33, the connecting mechanism 3 is in the locked state.
  • the rotating base 31 cannot rotate relative to the connecting seat 33, that is, the seat 2 cannot rotate relative to the frame 1; when the angle ⁇ of the seat 2 relative to the frame 1 is to be changed, the locking member 32 is pushed down (ie, the sliding plate 321 is pushed). ), the locking member 32 is moved downward as a whole, and the first gear 322 moves downward until it completely disengages from the first tooth groove 311. Thereafter, the connecting mechanism 3 is unlocked, and the rotating base 31 can be relatively connected.
  • the seat 33 rotates 360 degrees around the Y axis, that is, the seat 2 can rotate 360 degrees around the Y axis with respect to the frame 1, and when rotated to a desired angle ⁇ , the loose partition 321 is acted upon by the first spring 34, and the locking member 32 moves upwards as a whole, the first gear 322 is again engaged with the first tooth groove 311, and the seat 2 is locked at the relative angle and cannot rotate relative to the frame 1, so that the seat 2 of the stroller of the present invention can be opposite to the vehicle Frame 1 is positioned at a variety of different angles And the operation is especially easy.
  • the rotating base 31 is fixedly disposed at the lower end of the seat 2. In other embodiments, the rotating base 31 may be fixedly disposed at the rear end or the left and right ends of the seat 2, etc. Other suitable locations, and said The rotary seat 31 can also be integrally formed with the seat 2. Those skilled in the art will appreciate that the rotation 31 may or may not be part of the seat 2.
  • the locking member 32 further includes an annular extending portion 324 extending downward from the periphery of the partition plate 321, and the extending portion 324 surrounds the upper end of the connecting base 33, that is, the second slot 331
  • the upper end of the side wall is located between the extension 324 and the outer wall of the second gear 323.
  • the advantage of providing the extension portion 324 is that when the locking member 32 is pushed down, the extension portion 324 can be applied, that is, the extension portion 324 can be pressed downward, and the extension portion 324 is more than the spacer member 321 Good effort, so the operation is more convenient.
  • the outer wall of the extending portion 324 is provided with a plurality of ribs 325, which can increase friction and avoid slipping and cause force failure.
  • the rotating base 31 and the connecting base 33 are relatively rotatably connected by a pin 36 extending upward and downward.
  • the upper end of the pin 36 is fixedly connected with the rotating base 31, and the lower end is connected with the connecting end.
  • the seat 33 is rotatably connected, or the lower end of the pin 36 is fixedly connected to the connecting seat 33, and the upper end is rotatably coupled to the rotating base 31.
  • the upper abutting table 312 and the lower abutting table 332 are both disposed in an annular shape, and the first spring 34 is sleeved outside the lower abutting table 332, and the upper end of the pin 36 A fixed connection is made to the rotating base 31.
  • the lower end passes through the lower abutting table 332 and is located in the lower end of the connecting base 3.
  • the lower end of the pin 36 is provided with a neck 360 through which a transverse pin 361 passes.
  • the lower end of the connecting seat 33 is provided with two left and right lateral through holes (not shown) at the corresponding positions, and the two ends of the horizontal plug 361 are respectively inserted into the two horizontal through holes, thereby preventing the connecting seat 3 from coming off the pin 36, and
  • the pin 36 is also rotatable relative to the base 33.
  • an iron piece (not shown) is disposed between the lower end of the seat 2 and the rotating base 31, and the upper end of the pin 36 passes through the upper abutting table 312 and the iron The sheets are welded together, and the iron piece and the rotating base 31 are fixedly coupled to the lower end of the seat, so that the pin 36 is fixedly connected to the rotating base.
  • the pin 36 can be coupled to the swivel mount 31 and the docking station 33 by other known means.
  • the frame 1 includes a push rod 11 , two rear leg tubes 12 , a front wheel 13 connected to the lower end of the push rod 11 , and two connected to the lower ends of the two rear leg tubes 12 respectively.
  • the rear wheel 14 is pivotally connected to the push rod 11 at the upper end of the two rear leg tubes 12, and a locking mechanism for restricting relative rotation of the rear leg tube 12 and the push rod 11 is disposed between the upper ends of the two rear leg tubes 12 and the push rod 11. (not shown), the lower end of the support base 35 is connected to the push rod 11.
  • the connecting mechanism 3 further includes a support base 35.
  • the connecting base 33 is connected to the frame 1 through a support base 35.
  • the lower end of the support base 35 is fixedly connected to the push rod 11, the upper end.
  • a pivoting body 351 is provided, and the lower end of the connecting seat 33 is pivotally connected between the left and right pivoting bodies 351, and the lower end of the connecting seat 33 and the supporting base 35 are disposed to limit the two.
  • the limiting device 4 includes a first button 41, a third gear 42, a second spring 43, a third spring 44, a fourth gear 45, and a second button 46 in order from left to right.
  • the third side groove 352 is respectively disposed on the opposite sides of the left and right pivoting bodies 351, and the fourth tooth groove 333 is disposed on the left and right sides of the lower end of the connecting seat 33, and the left and right ends of the second spring 43 are respectively Abutting against the third gear 42 and the bottom wall of the fourth tooth groove 333 on the left side of the connecting seat 33 respectively; the left and right sides of the third spring 44 respectively abut against the bottom wall of the fourth tooth groove 333 on the right side of the connecting seat 33
  • the first button 41 includes a first pressing portion 411 and a first elastic finger 412 extending from the first pressing portion 411 to the right side, the first elastic finger 412 and the supporting seat 35 left
  • the side pivoting body 351 is coupled to and abuts against the left end of the third gear 42.
  • the second button 46 includes a second pressing portion 461 and a second elastic finger 462 extending from the second pressing portion 461 to the left side.
  • the second elastic finger 462 is pivotally connected to the right side of the support base 35 351 is connected and abuts against the right end of the fourth gear 45.
  • the third gear 42 is coupled to the third slot 352 of the left-side pivoting body 351 of the support base and the connecting seat.
  • the left fourth tooth groove 333 is engaged
  • the third gear 45 is opposite to the third tooth groove 352 of the right side pivot body 351 of the support base 35 and the right side of the connecting seat 33 by the third spring 44.
  • the fourth slot 333 is engaged.
  • the connecting seat 33 cannot rotate up and down with respect to the supporting base 35, that is, the seat 2 cannot rotate up and down with respect to the frame 1; when the seat 2 is to be folded, the first button 41 and the second button 46 are pressed relative to each other, so that the third The gear 42 is disengaged from the fourth tooth groove 333 of the left pivoting body of the support base 35 and only meshes with the third tooth groove 352 of the left side of the connecting seat 33, so that the fourth gear 45 is disengaged from the right pivoting body 351 of the support base 3.
  • the engagement of the fourth slot 333 is only engaged with the third slot 352 on the right side of the connecting base 33.
  • the connecting seat 33 can be rotated up and down with respect to the supporting base 35, that is, the seat 2 can rotate up and down with respect to the frame 1. Rotate down to fold seat 2.
  • the limiting mechanism 4 can also adopt other known structures.
  • the support base 35 may not be provided, and the lower end of the direct connection base 33 is connected to the push rod 11, and the connection manner may adopt different structures according to functional needs.
  • the frame 1 can also be any other feasible frame structure.
  • the connection mechanism 3 is provided, the frame 1 and the seat 2 can be connected through the connection mechanism 3, and the connection seat 33 or Support seat 35 and frame 1
  • the mechanism of the connecting portion can be set according to the specific structure of the frame 1.
  • the seat 2 is located up and down, the front and rear wheels 13 and 14 are located below, and the two rear wheels 14 are respectively left and right. .

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)

Abstract

一种座椅可旋转的儿童推车，其包括车架(1)、座椅(2)以及连接两者的连接机构(3)，所述连接机构(3)包括锁定件(32)、第一弹簧(34)、与座椅(2)连接的旋转座(31)、下端与车架(1)连接的连接座(33)，锁定件(32)包括隔板(321)、分别设置于所述隔板(321)上下两侧的第一齿轮(322)与第二齿轮(323)，旋转座(31)下端设有第一齿槽(311)，连接座(33)上端设有第二齿槽(331)，第一弹簧(34)置于第二齿槽(331)内，在第一弹簧(34)的作用下，两齿轮(322, 323)分别与两齿槽(311, 331)啮合，从而座椅(2)不能相对车架(1)旋转，往下推隔板(321)，第一齿轮(322)不再与第一齿槽(311)啮合，座椅(2)可360度旋转，松开隔板(321)，座椅(2)被定位为于该角度，即是说，该儿童推车的座椅(2)可相对车架(1)定位于多种不同角度，从而能满足孩子与妈妈不同视觉的需求。

Description

发明名称：一种座椅可旋转的儿童推车
技术领域
[0001] 本实用新型涉及一种儿童用产品， 尤其涉及一种座椅可旋转的儿童推车。
背景技术
[0002] 儿童推车一般包括一车架以及组装在车架上的座椅， 为了达到座椅前后向换向 的目的， 一般有两种方式， 一种是采用前后旋转车架的车手， 当车手打到座椅 背靠后面吋， 座椅朝前； 当车手往前旋转， 此吋， 家长面对座椅里的孩子； 第 二种是， 当要转换座椅前后向吋， 将座椅自车架上取下来， 换向后再组装到车 架上。 这两种方式能实现的仅仅是座椅前向或者后向设置， 而不能定位到其他 角度， 所以不能满足孩子与妈妈不同视觉的需求， 而且上述第二种方式操作起 来特别麻烦。
技术问题
[0003] 本实用新型的目的在于提供一种座椅可旋转的儿童推车， 其座椅可相对车架定 位于多种不同角度， 而且操作特别简单方便。
问题的解决方案
技术解决方案
[0004] 为实现上述目的， 本实用新型所采用的技术方案是：
[0005] 一种座椅可旋转的儿童推车， 包括车架、 座椅、 连接所述车架与座椅的连接机 构， 所述连接机构包括旋转座、 锁定件、 连接座、 第一弹簧， 所述旋转座与所 述座椅相对固定连接， 所述旋转座下端设置有第一齿槽； 所述锁定件包括环状 隔板、 自所述隔板上端面往上延伸的第一齿轮、 自所述隔板下端面往下延伸的 第二齿轮； 所述连接座与所述车架连接， 所述旋转座上端设置有第二齿槽； 所 述第一弹簧置于所述第二齿槽内并抵靠于所述第二齿轮下端； 所述旋转座与连 接座可相对旋转连接， 所述旋转座下端面与连接座上端面之间设置有间隙， 在 第一弹簧的作用下， 所述锁定件的第一齿轮与旋转座的第一齿槽啮合， 同吋第 二齿轮与连接座的第二齿槽啮合， 隔板外端伸出于所述间隙外， 且所述间隙的 上下高度大于或等于隔板与第一齿轮的总高度。
[0006] 所述第一齿槽的底壁中间往下延伸有上抵靠台， 所述第二齿槽底壁中间往上延 伸有下抵靠台， 所述上抵靠台下端面与下抵靠台上端面相抵靠。
[0007] 所述锁定件还包括自所述隔板外围往下延伸的环状延伸部， 所述延伸部围于所 述连接座上端外。
[0008] 所述延伸部外壁上设置有多道凸肋。
[0009] 所述旋转座与连接座通过一上下延伸的销钉可相对旋转连接， 所述销钉上端与 所述旋转座相对固定连接， 下端与所述连接座可旋转连接， 或所述销钉下端与 所述连接座相对固定连接， 上端与所述旋转座可旋转连接。
[0010] 所述上抵靠台与下抵靠台均设置为环状， 所述第一弹簧套于所述下抵靠台外， 所述锁定件也套设于下抵靠台外。
[0011] 所述销钉下端穿过下抵靠台后位于连接座下端内， 且所述销钉下端设置有颈部
， 一横向插销穿过所述颈部， 对应的， 所述连接座下端于对应位置设置有左右 两横向穿孔， 所述横向插销的两端分别插入该左右两横向穿孔。
[0012] 所述座椅下端与旋转座之间设置有铁片， 所述销钉上端穿过所述上抵靠台后与 所述铁片焊接在一起， 所述铁片与旋转座固定连接于座椅下端， 从而所述销钉 与旋转座相对固定连接。
[0013] 所述车架包括一推杆、 两后脚管、 连接于所述推杆下端的前轮、 两分别连接于 所述两后脚管下端的后轮， 所述两后脚管上端枢接于所述推杆， 且两后脚管上 端与推杆之间设置有用于限制所述后脚管与推杆相对旋转的锁定机构， 所述连 接座下端连接于推杆。
[0014] 所述连接机构还包括一支撑座， 所述连接座通过该支撑座连接于推杆， 所述支 撑座下端固定连接于推杆， 上端设置有左右两相间隔的枢接体， 所述连接座下 端枢接于所述左右两枢接体之间， 且连接座下端与支撑座之间设置有用于限制 两者相对旋转的限位装置。
[0015] 所述限位装置从左至右依次包括第一按钮、 第三齿轮、 第二弹簧、 第三弹簧、 第四齿轮、 第二按钮， 所述左右两枢接体的相对侧分别设置有第三齿槽， 所述 连接座下端左右两侧分别设置有对应的第四齿槽， 所述第二弹簧左右两端分别 抵靠第三齿轮与连接座左侧第四齿槽的底壁； 所述第三弹簧左右两侧分别抵靠 于连接座右侧第四齿槽的底壁与第四齿轮； 所述第一按钮包括第一按压部以及 自所述第一按压部往右侧延伸的第一弹性手指， 所述第一弹性手指与所述支撑 座左侧枢接体连接并抵靠于所述第三齿轮的左端， 所述第二按钮包括第二按压 部以及自所述第二按压部往左侧延伸的第二弹性手指， 所述第二弹性手指与所 述支撑座右侧枢接体连接并抵靠于所述第四齿轮的右端， 在第二弹簧的作用下 ， 所述第三齿轮同吋与支撑座左侧枢接体的第三齿槽以及连接座左侧第四齿槽 相啮合， 在第三弹簧的作用下， 所述第四齿轮同吋与支撑座右侧枢接体的第三 齿槽以及连接座右侧第四齿槽相啮合。
发明的有益效果
有益效果
[0016] 只要往下推锁定件， 使得第一齿轮与旋转座的第一齿槽脱离， 座椅即可相对车 架绕竖向 Y轴进行 360度旋转， 旋转到需要角度吋， 松幵锁定件， 座椅即可定位 于该角度而不能相对车架旋转， 从而本实用新型儿童推车的座椅能相对定位于 多种不同角度， 能满足孩子与妈妈不同视觉的需求， 而且改变座椅相对车架角 度的操作特别简单方便， 只需往下推锁定件以及松幵锁定件即可。
对附图的简要说明
附图说明
[0017] 图 1为本实用新型座椅可旋转的儿童推车的立体示意图；
[0018] 图 2为本实用新型座椅可旋转的儿童推车的连接机构的放大示意图；
[0019] 图 3为本实用新型座椅可旋转的儿童推车的连接机构的爆炸放大示意图；
[0020] 图 4为连接机构锁定状态下的剖面放大示意图；
[0021] 图 5为连接机构释锁状态下的剖面放大示意图；
[0022] 图 6为本实用新型座椅可旋转的儿童推车的旋转座的放大示意图；
[0023] 图 7为本实用新型座椅可旋转的儿童推车的锁定件的放大示意图；
[0024] 图 8为本实用新型座椅可旋转的儿童推车的连接机构的其中部分组件的爆炸放 大示意图。 实施该发明的最佳实施例
本发明的最佳实施方式
[0025] 如图 1至 7所示， 本实用新型座椅可旋转的儿童推车包括车架 1、 座椅 2、 连接所 述车架 1与座椅 2的连接机构 3， 所述连接机构 3包括旋转座 31、 锁定件 32、 连接 座 33、 第一弹簧 34， 所述旋转座 31与所述座椅 2固定连接， 所述旋转座 31下端设 置有第一齿槽 311， 且所述第一齿槽 311的底壁中间往下延伸有上抵靠台 312; 所 述锁定件 32包括环状隔板 321、 自所述隔板 321上端面往上延伸的第一齿轮 322、 自所述隔板 321下端面往下延伸的第二齿轮 323 ; 所述连接座 33与所述车架 1车架 ， 所述旋转座 31上端设置有第二齿槽 331， 且所述第二齿槽 331底壁中间往上延 伸有下抵靠台 332 ; 所述第一弹簧 34置于所述第二齿槽 331内并抵靠于所述第二 齿轮 323下端； 所述旋转座 31与连接座 33可相对旋转连接， 且所述上抵靠台 312 下端面与下抵靠台 332上端面相抵靠， 所述旋转座 31下端面与连接座 33上端面之 间设置有间隙 310， 在第一弹簧 34的作用下， 所述锁定件 32的第一齿轮 322与旋 转座 31的第一齿槽 311啮合， 同吋第二齿轮 323与连接座 33的第二齿槽 331啮合， 隔板 321外端伸出于所述间隙 310外， 且所述间隙 310的上下高度大于或等于隔板 321与第一齿轮 322的总高度。
[0026] 当锁定件 32的第一齿轮 322与旋转座 31的第一齿槽 311啮合， 同吋第二齿轮 323 与连接座 33的第二齿槽 331啮合吋， 连接机构 3处于锁定状态， 所述旋转座 31不 能相对连接座 33旋转， 即座椅 2不能相对车架 1旋转； 当要改变座椅 2相对车架 1 的角度吋， 只要往下推锁定件 32(即推隔板 321)， 使得锁定件 32整体往下移动， 第一齿轮 322随着往下移动， 直到完全脱离与第一齿槽 311的啮合， 此吋， 连接 机构 3释锁， 所述旋转座 31能相对连接座 33绕 Y轴 360度旋转， 即座椅 2能相对车 架 1绕 Y轴 360度旋转， 当旋转到需要的角度吋， 松幵隔板 321， 在第一弹簧 34的 作用下， 锁定件 32整体往上移动， 第一齿轮 322再度与第一齿槽 311啮合， 座椅 2 被锁定于该相对角度而不能相对车架 1旋转， 从而本实用新型儿童推车的座椅 2 可相对车架 1定位于多种不同角度， 而且操作特别简单方便。
[0027] 在本实施例中， 所述旋转座 31固定设置于所述座椅 2下端,在其他实施例中， 所 述旋转座 31也可以固定设置于座椅 2后端或者左右两端等其他合适位置， 且所述 旋转座 31还可以与所述座椅 2—体成型。 本领域技术人员可以理解， 所述旋转 31 可以是座椅 2的一部分， 也可以不是。
[0028] 所述锁定件 32还包括自所述隔板 321外围往下延伸的环状延伸部 324， 所述延伸 部 324围于所述连接座 33上端外， 即所述第二齿槽 331的侧壁上端位于所述延伸 部 324与第二齿轮 323外壁之间。 设置该延伸部 324的好处在于， 在往下推锁定件 32的吋候， 可以施力于延伸部 324上， 即握住延伸部 324往下用力即可， 而延伸 部 324比隔板 321更加好着力， 从而操作更方便。 较佳的， 所述延伸部 324外壁上 设置有多道凸肋 325， 所述凸肋 325可增大摩擦， 避免太滑而引起施力失效。
[0029] 在本实施例中， 所述旋转座 31与连接座 33通过一上下延伸的销钉 36可相对旋转 连接， 所述销钉 36上端与所述旋转座 31相对固定连接， 下端与所述连接座 33可 旋转连接， 或所述销钉 36下端与所述连接座 33相对固定连接， 上端与所述旋转 座 31可旋转连接。
[0030] 在本实施例中， 所述上抵靠台 312与下抵靠台 332均设置为环状， 所述第一弹簧 34套于所述下抵靠台 332外， 所述销钉 36上端与所述旋转座 31相对固定连接， 下 端穿过下抵靠台 332后位于连接座 3下端内， 所述销钉 36下端设置有颈部 360， 一 横向插销 361穿过所述颈部 360， 对应的， 所述连接座 33下端于对应位置设置有 左右两横向穿孔 （图未示） ， 所述横向插销 361的两端分别插入该左右两横向穿 孔内， 从而防止连接座 3脱离销钉 36， 且所述销钉 36还能相对连接座 33旋转。
[0031] 在本实施例中， 所述座椅 2下端与旋转座 31之间设置有铁片 （图未示） ， 所述 销钉 36上端穿过所述上抵靠台 312后与所述铁片焊接在一起， 所述铁片与旋转座 31固定连接于座椅下端， 从而所述销钉 36与旋转座相对固定连接。
[0032] 在其他实施例中， 所述销钉 36可以通过其他公知方式与所述旋转座 31以及连接 座 33连接。
[0033] 在本实施例中， 所述车架 1包括一推杆 11、 两后脚管 12、 连接于所述推杆 11下 端的前轮 13、 两分别连接于所述两后脚管 12下端的后轮 14， 所述两后脚管 12上 端枢接于所述推杆 11， 且两后脚管 12上端与推杆 11之间设置有用于限制所述后 脚管 12与推杆 11相对旋转的锁定机构 （图未示） ， 所述支撑座 35下端连接于所 述推杆 11。 [0034] 结合图 8所示， 所述连接机构 3还包括一支撑座 35， 所述连接座 33通过支撑座 35 连接于车架 1， 所述支撑座 35下端固定连接于推杆 11， 上端设置有左右两相间隔 的枢接体 351， 所述连接座 33下端枢接于所述左右两枢接体 351之间， 且连接座 3 3下端与支撑座 35之间设置有用于限制两者相对旋转的限位装置 4。
[0035] 在本实施例中， 所述限位装置 4从左至右依次包括第一按钮 41、 第三齿轮 42、 第二弹簧 43、 第三弹簧 44、 第四齿轮 45、 第二按钮 46， 所述左右两枢接体 351的 相对侧分别设置有第三齿槽 352， 所述连接座 33下端左右两侧分别设置有对应的 第四齿槽 333， 所述第二弹簧 43左右两端分别抵靠第三齿轮 42与连接座 33左侧第 四齿槽 333的底壁； 所述第三弹簧 44左右两侧分别抵靠于连接座 33右侧第四齿槽 333的底壁与第四齿轮 45 ; 所述第一按钮 41包括第一按压部 411以及自所述第一 按压部 411往右侧延伸的第一弹性手指 412， 所述第一弹性手指 412与所述支撑座 35左侧枢接体 351连接并抵靠于所述第三齿轮 42的左端， 所述第二按钮 46包括第 二按压部 461以及自所述第二按压部 461往左侧延伸的第二弹性手指 462， 所述第 二弹性手指 462与所述支撑座 35右侧枢接体 351连接并抵靠于所述第四齿轮 45的 右端， 在第二弹簧 43的作用下， 所述第三齿轮 42同吋与支撑座左侧枢接体 351的 第三齿槽 352以及连接座 33左侧第四齿槽 333相啮合， 在第三弹簧 44的作用下， 所述第四齿轮 45同吋与支撑座 35右侧枢接体 351的第三齿槽 352以及连接座 33右 侧第四齿槽 333相啮合。 从而连接座 33不能相对支撑座 35上下旋转， 即座椅 2不 能相对车架 1上下旋转； 当要收合座椅 2吋， 同吋相对按压第一按钮 41、 第二按 钮 46， 使得第三齿轮 42脱离与支撑座 35左侧枢接体第四齿槽 333的啮合而只与连 接座 33左侧第三齿槽 352啮合， 使得第四齿轮 45脱离与支撑座 3右侧枢接体 351的 第四齿槽 333的啮合而只与连接座 33右侧的第三齿槽 352啮合， 此吋， 连接座 33 可相对支撑座 35上下旋转， 即座椅 2可相对车架 1上下旋转， 往下旋转即可收合 座椅 2。 在其他实施例中， 所述限位机构 4也可以采用其他公知结构。
[0036] 在其他实施例中， 也可不设置支撑座 35， 直接连接座 33下端连接于推杆 11， 其 连接方式可以根据功能需要而采用不同的结构。
[0037] 在其他实施例中， 车架 1也可以是其他任意可行的车架结构， 只要设置有连接 机构 3， 即可通过连接机构 3连接车架 1与座椅 2， 而连接座 33或支撑座 35与车架 1 连接部分的机构可以根据车架 1的具体结构设置。
在上述方位描述中， 以所述前轮 13所在为前， 后轮 14所在为后， 座椅 2所在为 上下， 前、 后轮 13、 14所在为下， 以两后轮 14所在分别为左右。

Claims

权利要求书
一种座椅可旋转的儿童推车， 其特征在于： 包括车架、 座椅、 连接所 述车架与座椅的连接机构， 所述连接机构包括旋转座、 锁定件、 连接 座、 第一弹簧， 所述旋转座与所述座椅相对固定连接， 所述旋转座下 端设置有第一齿槽； 所述锁定件包括环状隔板、 自所述隔板上端面往 上延伸的第一齿轮、 自所述隔板下端面往下延伸的第二齿轮； 所述连 接座与所述车架连接， 所述旋转座上端设置有第二齿槽； 所述第一弹 簧置于所述第二齿槽内并抵靠于所述第二齿轮下端； 所述旋转座与连 接座可相对旋转连接， 所述旋转座下端面与连接座上端面之间设置有 间隙， 在第一弹簧的作用下， 所述锁定件的第一齿轮与旋转座的第一 齿槽啮合， 同吋第二齿轮与连接座的第二齿槽啮合， 隔板外端伸出于 所述间隙外， 且所述间隙的上下高度大于或等于隔板与第一齿轮的总 高度。
根据权利要求 1所述的座椅可旋转的儿童推车， 其特征在于： 所述第 一齿槽的底壁中间往下延伸有上抵靠台， 所述第二齿槽底壁中间往上 延伸有下抵靠台， 所述上抵靠台下端面与下抵靠台上端面相抵靠。 根据权利要求 2所述的座椅可旋转的儿童推车， 其特征在于： 所述锁 定件还包括自所述隔板外围往下延伸的环状延伸部， 所述延伸部围于 所述连接座上端外。
根据权利要求 3所述的座椅可旋转的儿童推车， 其特征在于： 所述延 伸部外壁上设置有多道凸肋。
根据权利要求 1或 2或 3或 4所述的座椅可旋转的儿童推车， 其特征在于
： 所述旋转座与连接座通过一上下延伸的销钉可相对旋转连接， 所述 销钉上端与所述旋转座相对固定连接， 下端与所述连接座可旋转连接
， 或所述销钉下端与所述连接座相对固定连接， 上端与所述旋转座可 旋转连接。
根据权利要求 5所述的座椅可旋转的儿童推车， 其特征在于： 所述上 抵靠台与下抵靠台均设置为环状， 所述第一弹簧套于所述下抵靠台外 ， 所述锁定件也套设于下抵靠台外。
根据权利要求 6所述的座椅可旋转的儿童推车， 其特征在于： 所述销 钉下端穿过下抵靠台后位于连接座下端内， 且所述销钉下端设置有颈 部， 一横向插销穿过所述颈部， 对应的， 所述连接座下端于对应位置 设置有左右两横向穿孔， 所述横向插销的两端分别插入该左右两横 向穿孔。
根据权利要求 7所述的座椅可旋转的儿童推车， 其特征在于： 所述座 椅下端与旋转座之间设置有铁片， 所述销钉上端穿过所述上抵靠台后 与所述铁片焊接在一起， 所述铁片与旋转座固定连接于座椅下端， 从 而所述销钉与旋转座相对固定连接。
根据权利要求 1或 2或 3或 4或 6或 7或 8所述的座椅可旋转的儿童推车， 其特征在于： 所述车架包括一推杆、 两后脚管、 连接于所述推杆下端 的前轮、 两分别连接于所述两后脚管下端的后轮， 所述两后脚管上端 枢接于所述推杆， 且两后脚管上端与推杆之间设置有用于限制所述后 脚管与推杆相对旋转的锁定机构， 所述连接座下端连接于推杆。 根据权利要求 9所述的座椅可旋转的儿童推车， 其特征在于： 所述连 接机构还包括一支撑座， 所述连接座通过该支撑座连接于推杆， 所述 支撑座下端固定连接于推杆， 上端设置有左右两相间隔的枢接体， 所 述连接座下端枢接于所述左右两枢接体之间， 且连接座下端与支撑座 之间设置有用于限制两者相对旋转的限位装置。
根据权利要求根据权利要求 10所述的座椅可旋转的儿童推车， 其特征 在于： 所述限位装置从左至右依次包括第一按钮、 第三齿轮、 第二弹 簧、 第三弹簧、 第四齿轮、 第二按钮， 所述左右两枢接体的相对侧分 别设置有第三齿槽， 所述连接座下端左右两侧分别设置有对应的第四 齿槽， 所述第二弹簧左右两端分别抵靠第三齿轮与连接座左侧第四齿 槽的底壁； 所述第三弹簧左右两侧分别抵靠于连接座右侧第四齿槽的 底壁与第四齿轮； 所述第一按钮包括第一按压部以及自所述第一按压 部往右侧延伸的第一弹性手指， 所述第一弹性手指与所述支撑座左侧 枢接体连接并抵靠于所述第三齿轮的左端， 所述第二按钮包括第二按 压部以及自所述第二按压部往左侧延伸的第二弹性手指， 所述第二弹 性手指与所述支撑座右侧枢接体连接并抵靠于所述第四齿轮的右端， 在第二弹簧的作用下， 所述第三齿轮同吋与支撑座左侧枢接体的第三 齿槽以及连接座左侧第四齿槽相啮合， 在第三弹簧的作用下， 所述第 四齿轮同吋与支撑座右侧枢接体的第三齿槽以及连接座右侧第四齿槽 相啮合。
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