WO2020244041A1 - 一种车轮组件及具有其的童车 - Google Patents

一种车轮组件及具有其的童车 Download PDF

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Publication number
WO2020244041A1
WO2020244041A1 PCT/CN2019/097821 CN2019097821W WO2020244041A1 WO 2020244041 A1 WO2020244041 A1 WO 2020244041A1 CN 2019097821 W CN2019097821 W CN 2019097821W WO 2020244041 A1 WO2020244041 A1 WO 2020244041A1
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Prior art keywords
attracting member
connecting shaft
wheel assembly
sleeve
attracting
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PCT/CN2019/097821
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English (en)
French (fr)
Inventor
王二伟
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好孩子儿童用品有限公司
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Application filed by 好孩子儿童用品有限公司 filed Critical 好孩子儿童用品有限公司
Publication of WO2020244041A1 publication Critical patent/WO2020244041A1/zh

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    • 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
    • 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
    • B62B9/18—Resilient suspensions of bodies

Definitions

  • the invention relates to a wheel assembly and a baby carriage having the same.
  • the universal wheel can rotate 360° around the vertical axis, so it has high flexibility.
  • the front wheels of the stroller generally use universal wheels to facilitate the steering of the stroller.
  • the stroller due to the excessive flexibility of the universal wheel, the stroller usually has the problem of the front wheel shaking left and right during the implementation process, which brings a very uncomfortable feeling to the promoter and the rider, and also affects the service life of the universal wheel.
  • the purpose of the present invention is to provide a wheel assembly which has high stability and does not easily cause the problem of left and right shaking during use.
  • a wheel assembly comprising a wheel carrier, a roller connected rotatably with the lower part of the wheel carrier, the wheel carrier including a connecting shaft extending in a vertical direction, so
  • the connecting shaft is sleeved with a shaft sleeve capable of rotating relative to it
  • the wheel assembly further includes a second attracting member, the second attracting member is provided on the shaft sleeve, and the connecting shaft is provided with a
  • the first attracting member or the connecting shaft that the second attracting member attracts each other is a first attracting member that can attract each other with the second attracting member, and the first attracting member and the second attracting member are configured for A damping device for damping the rotation of the connecting shaft.
  • the first attracting member and the second attracting member are attracted to each other by magnetic force, and both the first attracting member and the second attracting member are magnets, or one of them is made of a magnetic material and the other is a magnet.
  • the connecting shaft is at least partially made of a magnetically conductive material, and the first attracting member is a part of the connecting shaft, or the first attracting member is fixedly connected to the connecting shaft.
  • a mounting groove is provided on the shaft sleeve, and the second attracting member is fixedly arranged in the mounting groove.
  • the mounting groove is provided on the outside of the shaft sleeve.
  • the shaft sleeve is provided with a plurality of the mounting grooves, and the distance between each of the mounting grooves and the first attracting member is different.
  • the second attracting member is provided on the outer circumference of the sleeve.
  • the second attracting member is arranged at the axial end of the sleeve.
  • the connecting shaft is at least partially made of a magnetically conductive material
  • the first attracting member is a part of the connecting shaft
  • the second attracting member is made of a magnet
  • the second attracting member is provided with
  • a plurality of installation grooves are provided on the outer part of the sleeve, each of the installation grooves has a different distance from the first attracting member, and the installation grooves are located at the outer circumference and the axial end of the sleeve ,
  • the second attracting member is fixedly arranged in the installation groove.
  • Another object of the present invention is to provide a baby carriage which is not prone to shake left and right when pushed.
  • the technical solution adopted by the present invention is: a baby carriage, the baby carriage includes a frame, and the wheel assembly as described above is installed at the bottom of the frame.
  • the present invention has the following advantages compared with the prior art: the damping device uses attractive force to squeeze the sleeve to provide frictional damping for the rotation of the connecting shaft, and avoid the excessive flexibility of the connecting shaft causing the wheel assembly during operation
  • the phenomenon of left and right jittering improves the stability of the pusher and the rider's comfort, and the friction area between the sleeve and the connecting shaft is large, the friction effect is good, and the parts are not easy to wear , The service life of the wheel assembly is longer.
  • Figure 1 is an axonometric diagram of the wheel assembly
  • Fig. 2 is a schematic isometric view of the wheel assembly sleeved with a shaft sleeve, and the second attracting member is now arranged on the outer periphery of the shaft sleeve;
  • Fig. 3 is an axonometric diagram of a wheel assembly sleeved with a shaft sleeve, at this time the second attracting member is arranged at the shaft end of the shaft sleeve;
  • Figure 4 is an axonometric diagram of the baby carriage
  • Wheel frame 11. Connecting shaft; 12. Upper bracket; 13. Lower bracket; 14. Compression spring; 2. Roller; 3. Shaft sleeve; 31. Mounting groove; 4. First attracting member; 5. The second attracting part; 10, the wheel assembly; 20, the frame.
  • this embodiment provides a wheel assembly 10 and a baby carriage with the same.
  • the wheel assembly 10 includes a wheel frame 1 and a roller 2 rotatably connected to the lower part of the wheel frame 1.
  • the wheel frame 1 includes a connecting shaft 11 extending in a vertical direction.
  • the connecting shaft 11 is sleeved with a sleeve 3, a connecting shaft 11 and The sleeve 3 can rotate relatively, and the wheel assembly 10 also includes a damping device for damping the rotation of the connecting shaft 11.
  • the damping device includes a first attracting member 4 and a second attracting member 5 capable of attracting each other.
  • the piece 4 is arranged on the connecting shaft 11, and the second attracting piece 5 is arranged on the sleeve 3.
  • the wheel carrier 1 further includes an upper bracket 12 connected with the connecting shaft 11 and a lower bracket 13 connected with the roller 2.
  • the upper bracket 12 and the lower bracket 13 are relatively rotatably connected, and a compression spring is arranged between the upper bracket 12 and the lower bracket 13 14.
  • the compression spring 14 can provide damping for the rotation between the upper bracket 12 and the lower bracket 13, and has a shock absorption effect on the stroller, and improves the comfort of the stroller on bumpy roads. Since the first attracting member 4 and the second attracting member 5 attract each other, the friction between the sleeve 3 and the connecting shaft 11 is increased, and the flexibility of the connecting shaft 11 is restricted, so that the wheel assembly 10 can be prevented from shaking left and right. The wheel assembly 10 works relatively smoothly. In addition, the friction area between the sleeve 3 and the connecting shaft 11 is relatively large, the friction effect is good, the parts are not easily worn out, and the service life of the wheel assembly 10 is relatively long.
  • the first attracting member 4 and the second attracting member 5 are attracted to each other by magnetic force, and both of them may be magnets, or one may be made of a magnet and the other may be made of a magnetic material.
  • the stroller includes at least a frame 20, and the wheel assembly 10 is arranged at the bottom of the frame. As a preferred embodiment, only the two front wheels of the stroller are required to be the wheel assembly 10 of the present invention, and the two rear wheels still use ordinary rollers. The stroller can realize steering while at a low cost.
  • Magnetic conductive materials include metals such as iron, cobalt, nickel, or iron composite oxides that can be attracted by magnets.
  • the connecting shaft 11 is made of iron
  • the first attracting member 4 is the connecting shaft 11.
  • the first attracting member 4 may be a part fixedly arranged on the connecting shaft 11, which is made of a magnetically conductive material.
  • the attracting member 5 is a magnet
  • the second attracting member 5 and the connecting shaft 11 can attract each other.
  • the first attracting member 4 may also be a part independent of the connecting shaft 11 and connected to the connecting shaft 11.
  • the sleeve 3 is provided with a mounting groove 31, and the second attracting member 5 is fixedly arranged in the mounting groove 31. Therefore, the installation of the second attracting member 5 is also convenient, and the structure of the wheel assembly 10 is also More compact.
  • the mounting groove 31 is provided on the outside of the bushing 3, and the bushing 3 and the connecting shaft 11 squeeze each other to dampen the rotation of the connecting shaft 11 and prevent the wheel assembly 10 from shaking left and right when the stroller is pushed. , So the implementation of the stroller is more stable.
  • the bushing 3 is provided with a plurality of mounting grooves 31, so a wheel assembly 10 can be provided with multiple second attracting members 5 to achieve different damping effects.
  • the number of second attracting members 5 can be increased to increase the number of 3 Friction between the connecting shaft 11.
  • only one second attracting member 5 is provided in the wheel assembly, and the distance between each mounting groove 31 and the first attracting member 4 is different, so when the second attracting member 5 is arranged in different mounting grooves 31 , The attraction between it and the first attracting member 4 is different.
  • the second attracting member 5 is installed in the mounting groove 31 closer to the first attracting member 4.
  • the second attracting member 5 When the damping needs to be reduced, the second attracting member 5 is installed at a distance from the first attracting member 4 4In the far installation slot 31. It can be seen that the friction between the connecting shaft 11 of the wheel assembly 10 and the sleeve 3 is adjustable. The adjustment of the friction can be achieved by increasing or decreasing the number of the second attracting members 5, or by changing the second attracting members. The placement position of 5 is realized, and these two adjustment methods are extremely simple.
  • the second attracting member 5 can be arranged at any position of the sleeve 3. If the second attracting member 5 is arranged on the outer circumference of the sleeve 3 (see Figure 2), the height of the wheel assembly will not be increased. Therefore, when the center of gravity of the stroller is desired to be low, the wheel assembly 10 of this structure can be used . If the second attracting member 5 is arranged at the axial end of the sleeve 3 (see FIG. 3), the upper part of the wheel assembly 10 is relatively slender and has a better appearance. In short, the position of the second attracting member 5 on the shaft sleeve 3 can be flexibly arranged according to the needs of the stroller structure, so the wheel assembly 10 can be applied to strollers with different structures.

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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)
  • Handcart (AREA)

Abstract

一种车轮组件（10），包括车轮架（1）、与车轮架（1）的下部相转动连接的滚轮（2），车轮架（1）包括沿竖直方向延伸的连接轴（11），连接轴（11）上套设有能够相对其转动的轴套（3），车轮组件（10）还包括用于对连接轴（11）的转动产生阻尼的阻尼装置，阻尼装置包括能够相互吸引的第一吸引件（4）和第二吸引件（5），第一吸引件（4）固定设置在连接轴（11）上、第二吸引件（5）固定设置在轴套（3）上。阻尼装置利用吸引力挤压轴套（3），为连接轴（11）的转动提供摩擦阻尼，避免连接轴（11）过于灵活造成车轮组件（10）在运行过程中出现左右抖动现象，提高儿童推车推行的稳定性，从而提高推行者和乘坐者的舒适性，而且轴套（3）和连接轴（11）之间的摩擦面积较大，摩擦效果较好，也不易对零件产生磨损，车轮组件的使用寿命较高。

Description

一种车轮组件及具有其的童车
技术领域
本发明涉及一种车轮组件及具有其的童车。
背景技术
万向轮能够绕竖直轴360°旋转，因此具有较高的灵活性。儿童推车的前轮一般使用万向轮，以便于推车转向。然而由于万向轮过于灵活，儿童推车在推行过程中通常都会出现前轮左右抖动的问题，给推行者和乘坐者带来非常不适的感觉，还会影响万向轮的使用寿命。
发明内容
本发明的目的是提供一种车轮组件，其稳定性高，使用时不易产生左右抖动的问题。
为达到上述目的，本发明采用的技术方案是：一种车轮组件，包括车轮架、与所述车轮架的下部相转动连接的滚轮，所述车轮架包括沿竖直方向延伸的连接轴，所述连接轴上套设有能够相对其转动的轴套，所述车轮组件还包括第二吸引件，所述第二吸引件设置在所述轴套上，所述连接轴上设置有能够和所述第二吸引件相互吸引的第一吸引件或所述连接轴为能够和所述第二吸引件相互吸引的第一吸引件，所述第一吸引件和所述第二吸引件构成用于对所述连接轴的转动产生阻尼的阻尼装置。
优选地，所述第一吸引件和第二吸引件通过磁力相互吸引，所述第一吸引件和第二吸引件都为磁铁，或者其中一个为导磁材料制成、另一个为磁铁。
进一步优选地，所述连接轴至少部分地为导磁材料制成，所述第一吸引件为所述连接轴的一部分、或者所述第一吸引件固定连接在所述连接轴上。
优选地，所述轴套上设置有安装槽，所述第二吸引件固定设置在所述安装槽中。
进一步优选地，所述安装槽设置在所述轴套的外侧。
进一步优选地，所述轴套设置有多个所述安装槽，各个所述安装槽与所述第一吸引件的距离不同。
优选地，所述第二吸引件设置在所述轴套的外周部。
优选地，所述第二吸引件设置在所述轴套的轴向端部。
优选地，所述第二吸引件设置有多个。
优选地，所述连接轴至少部分地为导磁材料制成，所述第一吸引件为所述连接轴的一 部分，所述第二吸引件为磁铁制成，所述第二吸引件设置有多个，所述轴套的外侧部设置有多个安装槽，各个所述安装槽与所述第一吸引件的距离不同，所述安装槽位于所述轴套的外周部和轴向端部，所述第二吸引件固定设置在所述安装槽中。
本发明的另一目的是提供一种童车，该童车在推动时不易发生左右抖动。
为达到上述目的，本发明采用的技术方案是：一种童车，所述童车包括车架，所述车架的底部安装有如前所述的车轮组件。
由于上述技术方案的运用，本发明与现有技术相比具有下列优点：阻尼装置利用吸引力挤压轴套，为连接轴的转动提供摩擦阻尼，避免连接轴过于灵活造成车轮组件在运行过程中出现左右抖动现象，提高儿童推车推行的稳定性，从而提高推行者和乘坐者的舒适性，而且轴套和连接轴之间的摩擦面积较大，摩擦效果较好，也不易对零件产生磨损，车轮组件的使用寿命较长。
附图说明
附图1为车轮组件的轴测示意图；
附图2为车轮组件套设有轴套的轴测示意图，此时第二吸引件设置在所述轴套的外周部；
附图3为车轮组件套设有轴套的轴测示意图，此时第二吸引件设置在所述轴套的轴端部；
附图4为童车的轴测示意图；
其中：1、车轮架；11、连接轴；12、上支架；13、下支架；14、压簧；2、滚轮；3、轴套；31、安装槽；4、第一吸引件；5、第二吸引件；10、车轮组件；20、车架。
具体实施方式
下面结合附图和具体实施例来对本发明的技术方案作进一步的阐述。
参见图1至图4所示，本实施例提供了一种车轮组件10及具有其的童车。车轮组件10包括车轮架1、与车轮架1的下部相转动连接的滚轮2，车轮架1包括沿竖直方向延伸的连接轴11，连接轴11上套设有轴套3，连接轴11和轴套3能够相对转动，车轮组件10还包括用于对连接轴11的转动产生阻尼的阻尼装置，该阻尼装置包括能够相互吸引的第一吸引件4和第二吸引件5，其中第一吸引件4设置在连接轴11上、第二吸引件5设置在轴套3上。车轮架1还包括与连接轴11连接的上支架12、以及连接有滚轮2的下支架13，上支架12和下支架13相对转动地连接，上支架12和下支架13之间设置有压簧14，压簧14能够为上支架12与下支架13之间的转动提供阻尼，对童车具有减震作用，提高童车在颠簸路面推行的舒适度。由于第一吸引件4和第二吸引件5相互吸引，导致轴套3和连接轴11之间的摩擦力 增大，限制了连接轴11转动的灵活度，因此能够防止车轮组件10左右抖动，车轮组件10工作时较为平稳。而且轴套3和连接轴11之间的摩擦面积较大，摩擦效果较好，也不易对零件产生磨损，车轮组件10的使用寿命较高。
具体地，第一吸引件4和第二吸引件5通过磁力相互吸引，两个可以都为磁铁，也可以一个为磁铁制成、另一个为导磁材料制成。童车至少包括车架20，车轮组件10设置在车架的底部。作为优选的实施方式，只需要童车的两个前轮为本发明的车轮组件10，两个后轮仍使用普通滚轮，该童车能够实现转向的同时且成本较低。
导磁材料包括铁、钴、镍等金属，或铁复合氧化物等可以被磁铁所吸引的材料。本实施例中连接轴11由铁制成，第一吸引件4即是连接轴11；也可以第一吸引件4为固定设置在连接轴11上零件，其由导磁材料制成，第二吸引件5为磁铁，第二吸引件5与连接轴11能够相互吸引。在其他的某些实施例中，第一吸引件4也可以为相对于连接轴11独立、并连接在连接轴11上的零件。
参见图2和图3所示，轴套3上设置有安装槽31，第二吸引件5固定设置在安装槽31中，因此第二吸引件5的安装也较为方便，车轮组件10的结构也较为紧凑。在本实施例中，安装槽31设置在轴套3的外侧，轴套3与连接轴11相互挤压，对连接轴11的转动起到阻尼作用，防止推动童车时，车轮组件10出现左右抖动，因此童车的推行更加稳定。
轴套3设置有多个安装槽31，因此一个车轮组件10上可以设置多个第二吸引件5，实现不同的阻尼效果，例如，可以通过增加第二吸引件5数量的方式，提高轴套3与连接轴11之间的摩擦力。在其他的某些实施例中，车轮组件中仅设置有一个第二吸引件5，各个安装槽31与第一吸引件4的距离不同，因此第二吸引件5设置在不同安装槽31内时，其与第一吸引件4之间的吸引力不同。当需要增加阻尼时，则将第二吸引件5安装在距离第一吸引件4较近的安装槽31内，当需要减小阻尼时，则将第二吸引件5安装在距离第一吸引件4较远的安装槽31内。由此可知，该车轮组件10的连接轴11与轴套3的摩擦力是可调的，摩擦力的调节既可以通过增减第二吸引件5的数量实现，也可以通过改变第二吸引件5的放置位置实现，且这两种调节方式都极为简单。
第二吸引件5可以设置在轴套3的任意位置。若第二吸引件5设置在轴套3的外周部(参见图2所示)，不会增加车轮组件的高度，因此当希望儿童推车的重心较低时，可以采用该结构的车轮组件10。若第二吸引件5设置在轴套3的轴向端部(参见图3所示)，车轮组件10的上部较为纤细，美观度较好。总之，可以根据儿童推车结构的需要，灵活布置第二吸引件5设置在轴套3上的位置，因此该车轮组件10能够应用于不同结构的童车。
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。

Claims (11)

  1. 一种车轮组件，包括车轮架、与所述车轮架的下部相转动连接的滚轮，所述车轮架包括沿竖直方向延伸的连接轴，所述连接轴上套设有能够相对其转动的轴套，其特征在于：所述车轮组件还包括第二吸引件，所述第二吸引件设置在所述轴套上，所述连接轴上设置有能够和所述第二吸引件相互吸引的第一吸引件或所述连接轴为能够和所述第二吸引件相互吸引的第一吸引件，所述第一吸引件和所述第二吸引件构成用于对所述连接轴的转动产生阻尼的阻尼装置。
  2. 根据权利要求1所述的车轮组件，其特征在于：所述第一吸引件和第二吸引件通过磁力相互吸引，所述第一吸引件和第二吸引件都为磁铁，或者其中一个为导磁材料制成、另一个为磁铁。
  3. 根据权利要求2所述的车轮组件，其特征在于：所述连接轴至少部分地为导磁材料制成，所述第一吸引件为所述连接轴的一部分、或者所述第一吸引件固定连接在所述连接轴上。
  4. 根据权利要求1所述的车轮组件，其特征在于：所述轴套上设置有安装槽，所述第二吸引件固定设置在所述安装槽中。
  5. 根据权利要求4所述的车轮组件，其特征在于：所述安装槽设置在所述轴套的外侧。
  6. 根据权利要求4所述的车轮组件，其特征在于：所述轴套设置有多个所述安装槽，各个所述安装槽与所述第一吸引件的距离不同。
  7. 根据权利要求1所述的车轮组件，其特征在于：所述第二吸引件设置在所述轴套的外周部。
  8. 根据权利要求1所述的车轮组件，其特征在于：所述第二吸引件设置在所述轴套的轴向端部。
  9. 根据权利要求1所述的车轮组件，其特征在于：所述第二吸引件设置有多个。
  10. 根据权利要求1所述的车轮组件，其特征在于：所述连接轴至少部分地为导磁材料制成，所述第一吸引件为所述连接轴的一部分，所述第二吸引件为磁铁制成，所述第二吸引件设置有多个，所述轴套的外侧部设置有多个安装槽，各个所述安装槽与所述第一吸引件的距离不同，所述安装槽位于所述轴套的外周部和轴向端部，所述第二吸引件固定设置在所述安装槽中。
  11. 一种童车，所述童车包括车架，其特征在于：所述车架的底部安装有如权利要求1至10中任一项所述的车轮组件。
PCT/CN2019/097821 2019-06-06 2019-07-26 一种车轮组件及具有其的童车 WO2020244041A1 (zh)

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