WO2018103377A1 - 可折叠推车车架及可折叠推车 - Google Patents

可折叠推车车架及可折叠推车 Download PDF

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Publication number
WO2018103377A1
WO2018103377A1 PCT/CN2017/099031 CN2017099031W WO2018103377A1 WO 2018103377 A1 WO2018103377 A1 WO 2018103377A1 CN 2017099031 W CN2017099031 W CN 2017099031W WO 2018103377 A1 WO2018103377 A1 WO 2018103377A1
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WO
WIPO (PCT)
Prior art keywords
wheel bracket
link
armrest
strut
rotatably coupled
Prior art date
Application number
PCT/CN2017/099031
Other languages
English (en)
French (fr)
Inventor
蔡守进
Original Assignee
江苏小小恐龙儿童用品集团有限公司
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 江苏小小恐龙儿童用品集团有限公司 filed Critical 江苏小小恐龙儿童用品集团有限公司
Priority to PL17877587.0T priority Critical patent/PL3552923T3/pl
Priority to ES17877587T priority patent/ES2934792T3/es
Priority to EP17877587.0A priority patent/EP3552923B1/en
Publication of WO2018103377A1 publication Critical patent/WO2018103377A1/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
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
    • B62B7/08—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis
    • B62B7/083—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis the wheel axes being moved from each other during folding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
    • B62B7/08—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis
    • B62B7/086—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable in the direction of, or at right angles to, the wheel axis becoming smaller in all three dimensions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B7/00—Carriages for children; Perambulators, e.g. dolls' perambulators
    • B62B7/04—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor
    • B62B7/06—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable
    • B62B7/10—Carriages for children; Perambulators, e.g. dolls' perambulators having more than one wheel axis; Steering devices therefor collapsible or foldable by folding down the body to the wheel carriage or by retracting projecting parts into the box-shaped body
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/02—Hand-propelled vehicles or sledges being foldable or dismountable when not in use foldable widthwise
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/04—Hand-propelled vehicles or sledges being foldable or dismountable when not in use box-shaped in folded position
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/06—Foldable with a scissor-like mechanism
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
    • B62B2205/00—Hand-propelled vehicles or sledges being foldable or dismountable when not in use
    • B62B2205/30—Detachable, retractable or collapsible load supporting means
    • B62B2205/32—Shelves

Definitions

  • the present disclosure relates to the field of cart technology, for example, to a foldable cart frame and a foldable cart.
  • a cart is a tool that is common in everyday life, such as a cart for shopping, and for example, a cart for infants to sit down.
  • a cart for shopping and for example, a cart for infants to sit down.
  • an infant stroller is usually provided in a foldable type. By folding the cart to reduce the space required for the cart.
  • the folding cart of the related art has a wide variety of frames, but the frame is either structurally complicated and has low structural strength, or is inconvenient to fold, and has a large volume after folding, which is inconvenient to place. Storage, can not be applied to the user's placement space, these defects will cause inconvenience to the user, resulting in poor user experience, which is not conducive to market promotion.
  • the present disclosure provides a foldable cart frame and a foldable cart, which solves the problems of the complicated structure and the inconvenient folding of the foldable cart in the related art.
  • a foldable cart frame comprising:
  • a rear wheel bracket that is rotatably coupled to the front wheel bracket
  • a side armrest rotatably coupled to an upper end of the rear wheel bracket, and a rear strut rotatably coupled to the rear wheel bracket at a first position of the rear wheel bracket
  • a push rod rotatably coupled to the side armrest and the rear strut
  • a front wheel bracket link the first end of the front wheel bracket link is rotatably connected to the sliding sleeve, and the second end of the front wheel bracket link is rotatably connected with the front wheel bracket;
  • a side armrest link the first end of the side armrest link being rotatably coupled to the sliding sleeve, the first end of the side armrest link being rotatably coupled to the side armrest.
  • first strut, the second strut, the third strut, and the fourth strut are optionally, the first strut, the second strut, the third strut, and the fourth strut;
  • the first strut and the second strut are in an intermediate portion and are rotatably connected;
  • the first end of the second strut is rotatably coupled to the first end of the fourth strut, and the second end of the second strut and the first end of the second wheel support link of the front wheel bracket link Rotatablely coupled, the second end of the fourth strut being rotatably coupled to the first end of the first wheel bracket link;
  • the first end of the first strut is rotatably coupled to the first end of the third strut, and the second end of the first strut and the second end of the first wheel support link of the front wheel bracket link
  • the second end of the third strut is rotatably coupled to the second end of the second wheel mount link.
  • the upper cross struts and the lower cross struts are rotatably connected and cross-connected in the middle portion
  • the first end of the upper cross strut is rotatably connected to the second rear wheel bracket of the rear wheel bracket, the second end is rotatably connected with the first connecting member, and the first connecting member is rotatably connected to the first end a wheel bracket link, and a rotation axis of the first connecting member is coaxial with a rotation axis of the first wheel bracket link and the sliding sleeve;
  • the first end of the lower cross strut is rotatably coupled to the first rear wheel bracket of the rear wheel bracket, the second end is rotatably coupled to the second connecting member, and the second connecting member is rotatably coupled to the second end a wheel bracket link, and a rotation axis of the second connecting member is coaxial with a rotation axis of the second wheel bracket link and the sliding sleeve.
  • the front armrest includes a front armrest middle rod and two front armrest links;
  • the two front armrest links are symmetrically disposed and rotatably connected to the two ends of the front armrest middle rod, and each front armrest link is not connected to one end of the front armrest middle rod rotatably connected with the front armrest plug, the front The armrest plug is inserted into the side armrest link.
  • first push handle and the second push handle are rotatably connected to each other, and the first push handle and the second push handle are respectively rotatably connected to the push rod.
  • a locking member is disposed between the first push handle and the second push handle, and the locking member is used for locking and unlocking the first push handle and the second push handle.
  • a locking mechanism for locking the entire vehicle frame is disposed between the side armrest and the push rod, and the locking member unlocks the first push handle and the second push handle while pressing the push rod downward and forward.
  • the locking mechanism automatically unlocks the entire vehicle frame.
  • it also includes:
  • the first end of the seatpost is rotatably connected to the front wheel bracket link
  • the rotation axis is coaxial with the rotation axis of the rear strut and the rear wheel bracket.
  • the utility model further includes a seat post sliding sleeve rotatably connected to the side armrest, wherein the seat post sliding sleeve is slidably provided with a seat post, and the seat post is rotatably connected to the side armrest link at one end, the side a front armrest socket is rotatably connected to the upper end of the armrest link, and a rotation axis of the front armrest socket is coaxial with a rotation axis of the front armrest link and the side armrest, and the front armrest plug of the front armrest is inserted before In the arm socket.
  • a foldable cart comprising the foldable cart frame of any of the above.
  • the disclosure can make the folding of the cart frame more convenient and quick, and the small volume after folding is convenient for carrying and storing, which brings great convenience to the user. Moreover, the above structure is more stable when the cart is deployed.
  • FIG. 1 is a perspective structural view of a foldable cart frame of the first embodiment
  • Figure 2 is a side elevational view of the foldable cart frame of the first embodiment
  • Figure 3 is a schematic view showing the state of the foldable cart frame of the first embodiment after the upper half is hidden;
  • FIG. 4 is a schematic view showing another state after the foldable cart frame of the first embodiment hides the upper half;
  • Figure 5 is a schematic view showing the state of the half-folding of the foldable cart frame of the first embodiment
  • Figure 6 is a side view showing the half-folded state of the foldable cart frame of the first embodiment
  • Figure 7 is a schematic view showing the fully folded state of the foldable cart frame of the first embodiment
  • Figure 8 is a perspective view showing the structure of the foldable cart frame of the second embodiment
  • Figure 9 is a side view of the foldable cart frame of the second embodiment.
  • Figure 10 is a schematic view showing the state of the half-folding of the foldable cart frame of the second embodiment
  • Figure 11 is a side view showing the half-folded state of the foldable cart frame of the second embodiment
  • Figure 12 is a schematic view showing the fully folded state of the foldable cart frame of the second embodiment.
  • the embodiment provides a foldable cart frame.
  • the directions of "front”, “back”, “left”, “right”, “upper”, “lower”, etc. are all The direction in which the user cart is facing, that is, the direction in which the user cart is facing is the front, which is used as a reference to explain the plurality of directions.
  • the foldable cart frame includes a front wheel bracket 1, a rear wheel bracket 2, a side armrest 3, and a push a rod 4, a rear strut 5, a front wheel bracket link 6, a side armrest link 7, a sliding sleeve 8, a front wheel assembly 11, and a rear wheel assembly 12, wherein:
  • the front wheel assembly 11 described above is mounted on the front wheel bracket 1 and the rear wheel assembly 12 is mounted on the rear wheel bracket 2.
  • the front wheel bracket 1 and the rear wheel bracket 2 are rotatably pinned by a pin 27.
  • the rear wheel bracket 2 includes a left rear wheel bracket (first rear wheel bracket) 2a and a right rear wheel.
  • the bracket (second rear wheel bracket) 2b, the left rear wheel bracket 2a and the right rear wheel bracket 2b are respectively rotatably pinned to the both sides of the front wheel bracket 1 by pins 27.
  • the upper end of the rear wheel bracket 2 and the side armrest 3 are rotatably pinned by the pin 29, and the rear end (ie, at the first position) is rotatably pinned to the rear strut 5 by the pin 33, and the side armrest 3 is rotatably coupled to the push rod by the pin 30.
  • the push rod 4 is further connected with the canopy rod 19 through the pin 30, that is, the above-mentioned side armrest 3, the push rod 4 and the canopy rod 19 are coaxially connected by the pin 30, and the push rod 4 and the rear support
  • the rods 5 are pivotally connected by pins 32.
  • the lower end of the push rod 4 is pivotally connected to the rear strut 5 by a pin 32.
  • a sliding sleeve 8 is disposed on the rear wheel bracket 2, and the front wheel bracket connecting rod 6 is connected to the sliding sleeve 8 by a pin 36, and the side armrest connecting rod 7 is connected by a pin 35, and the front wheel bracket connecting rod is connected. 6
  • the end of the unconnected sliding sleeve 8 is pivotally connected to the front wheel bracket 1 by a pin 28, and one end of the side armrest connecting rod 7 not connected to the sliding sleeve 8 is pivotally connected to the side armrest 3 by a pin 31.
  • the sliding sleeve 8 includes a sliding sleeve 8a and a sliding sleeve 8b.
  • the foldable baby stroller further includes a left rear strut (second strut) 23 and a right rear strut which are rotatably connected and cross-connected by a pin 49 at an intermediate portion.
  • first strut 22 wherein one end of the left rear strut 23 is rotatably coupled to the left front strut (fourth strut) 25 by the pin 44, and the other end is rotatably coupled to the front wheel bracket link 6 by the pin 48 a right front wheel bracket link (second wheel bracket link) 6b, one end of the right rear strut 22 is rotatably connected with a right front strut (third strut) 24 through a pin 45, and the other end is rotatably connected to the front by a pin 47 a left front wheel bracket link (first wheel bracket link) 6a of the wheel bracket link 6, an end of the left front stay 25 not connected to the left rear stay 23 is rotatably connected to the left front wheel bracket link 6a by a pin 43
  • One end of the right rear strut 22 is not connected, and one end of the right rear strut 24 that is not connected to the right rear strut 22 is rotatably connected to one end of the right front wheel bracket link 6b to which the left rear
  • the foldable stroller further includes an upper cross strut 20 and a lower cross strut 21 that are rotatably connected and cross-connected by a pin 42 at an intermediate portion, wherein one end of the upper cross strut 20 is rotatably connected by a pin 40b.
  • the right rear wheel bracket 2b of the rear wheel bracket 2 is rotatably connected by a pin 41a a left U-shaped member (first connecting member) 26a, the left U-shaped member 26a is rotatably coupled to the left front wheel bracket link 6a by a pin 36, and the rotating shaft center of the left U-shaped member 26a is coaxial with the left front wheel bracket
  • One end of the lower cross strut 21 is rotatably connected to the left rear wheel bracket 2a of the rear wheel bracket 2 through a pin 40a, and the other end is rotatably connected by a pin 41b to a right U-shaped member (second connecting member) 26b, and the right U-shaped member 26b
  • the other front pin support link 6b is rotatably coupled by the other pin 36, and the rotational axis of the right U-shaped member 26b is coaxial with the rotational axis of the right front wheel bracket link 6b and the sliding sleeve 8.
  • the foldable stroller further includes a front armrest.
  • the front armrest includes a front armrest middle pole 16 and two front armrest links symmetrically disposed and rotatably coupled to the ends of the front armrest middle pole 16. (including the left front armrest link 15a and the right front armrest link 15b), each front armrest link is not connected to one end of the front armrest middle rod 16 and is rotatably connected with a front armrest plug (including a left front armrest plug connected to the left front armrest link 15a) 14a, connected to the right front armrest plug 14b) of the right front armrest link 15b, after assembling the front armrest middle rod 16, the front armrest link and the front armrest plug, the assembled structure can be inserted into the side armrest through the front armrest plug In the connecting rod 7.
  • the left pusher (first push handle) 17a and the right push handle (second push handle) 17b are rotatably connected to the upper end of the push rod 4 by the pin 38a and the pin 38b, respectively, and the left push handle 17a and The right pusher 17b is rotatably coupled by a pin 39, and a lock member is provided between the left pusher 17a and the right pusher 17b for locking and unlocking the left pusher 17a and the right pusher 17b.
  • the locking member is an unlocking button 18.
  • a locking mechanism 341 for locking the entire vehicle frame is further disposed between the side armrest 3 and the push rod 4, and the left pusher 17a and the right pusher 17b are unlocked at the locking member and the pusher 4 is pushed downward and forward. At this time, the locking mechanism 341 automatically unlocks the entire vehicle frame to complete the folding of the entire vehicle frame.
  • the foldable stroller is further provided with a seat post 9 rotatably connected to the front wheel bracket link 6 by a pin 34.
  • the seat post 9 is not connected to one end of the front wheel bracket link 6 through the pin 50.
  • Rotating and connecting the seat rod link 10 one end of the seat rod link 10 not connected to the seat rod 9 is rotatably connected to the rear wheel bracket 2 through the pin 33, and the rotation axis of the seat post link 10 and the rear wheel bracket 2 is coaxial The rotation axis of the rear strut 5 and the rear wheel bracket 2.
  • the seat post 9 is also rotatably coupled to the backrest bar 13 via a pin 37.
  • the locking relationship between the left pusher 17a and the right pusher 17b is first released by the locking member, and then the left pusher 17a and the right pusher 17b are directed downward and toward each other.
  • the front pressure causes the locking mechanism 341 between the side armrest 3 and the push rod 4 to be automatically unlocked, and then the push rod 4 is continuously depressed, and the foldable cart frame state is as shown in FIGS. 5 and 6.
  • the whole frame is further folded forward and downward, and the entire foldable cart frame can be completely folded by the linkage relationship of the above various components, and the state after full folding is as shown in FIG. 7 .
  • the present disclosure also provides a foldable cart comprising the above-mentioned foldable cart frame.
  • the structure of the foldable cart frame can make the folding of the cart frame more convenient and quick, and the volume after folding is small. It is easy to carry and store, which brings great convenience to users. Moreover, the above structure is more stable when the cart is deployed.
  • the seat post 9 of the embodiment is not rotatably connected to the front wheel bracket connecting rod 6.
  • the seat post 9 is slidably disposed in the seat post sliding sleeve 51.
  • the seat sleeve sliding sleeve 51 is rotatably connected to the side armrest 3 via a pin 52.
  • One end of the seat post 9 is rotatably connected to the side armrest link 7 through a pin 53, and the front armrest socket 55 is rotatably connected to the upper end of the side armrest link 7.
  • a connecting member is disposed on the side armrest 3, and the connecting member is rotatably connected to the front armrest socket 55.
  • the rotation axis of the front armrest socket 55 is coaxial with the rotation of the front armrest link 7 and the side armrest 3.
  • the pivots, that is, the rotatably connected between the front armrest socket 55, the front armrest link 7, and the side armrests 3, are each inserted through the pin 54, and the front armrest is inserted into the front armrest socket 55 through the front armrest plug.
  • the locking relationship between the left pusher 17a and the right pusher 17b is first released by the locking member, and then the left pusher 17a and the right pusher 17b are directed downward and toward each other.
  • the front pressure causes the locking mechanism 341 between the side armrest 3 and the push rod 4 to be automatically unlocked, and then the push rod 4 is continuously depressed, and the foldable cart frame state is as shown in FIGS. 10 and 11.
  • the entire frame is further folded forward and downward, and the entire foldable cart frame can be completely folded by the linkage relationship of the above-mentioned multiple components, and the fully folded state is as shown in FIG.
  • the foldable cart frame provided by the present disclosure can make the folding of the cart frame more convenient and quick, and has a small volume after folding, which is convenient for carrying and storing, and brings great convenience to the user. Moreover, the above structure is more stable when the cart is deployed.

Abstract

一种可折叠推车车架，包括：前轮支架(1)，与前轮支架(1)可转动连接的后轮支架(2)，与所述后轮支架(2)的上端可可转动连接的侧扶手(3)，在后轮支架(2)的第一位置处与所述后轮支架(2)可转动连接的后撑杆(5)，与所述侧扶手(3)以及后撑杆(5)异轴可转动连接的推杆(4)，设置在所述后轮支架(2)上的滑套(8)，前轮支架连杆(6)，所述前轮支架连杆(6)的第一端与所述滑套(8)可转动连接，所述前轮支架连杆(6)的第二端与前轮支架(1)可转动连接；以及侧扶手连杆(7)，所述侧扶手连杆(7)的第一端与所述滑套(8)可转动连接，所述侧扶手连杆(7)的第二端与所述侧扶手(3)可转动连接。

Description

可折叠推车车架及可折叠推车 技术领域
本公开涉及推车技术领域，例如涉及一种可折叠推车车架及可折叠推车。
背景技术
推车是一种在日常生活中常见的工具，例如用于购物的推车，再例如用于供婴幼儿躺坐的推车等。为了便于携带以及不使用时的收纳，例如婴幼儿推车，通常设置为可折叠式。通过将推车折叠起来，以减小推车需要占用的空间。
相关技术中的折叠式推车的车架的种类繁多，但是所述车架要么在结构上较为复杂且结构强度不高，要么折叠起来很不方便，且在折叠后体积较大，不方便放置收纳，无法适用用户的放置空间，这些缺陷会给使用者造成不便，导致用户体验不佳，不利于市场推广。
发明内容
本公开提供了一种可折叠推车车架及可折叠推车，解决了相关技术中折叠式推车存在的结构复杂以及折叠不方便的问题。
本公开采用以下技术方案：
一种可折叠推车车架，包括：
前轮支架，
与前轮支架可可转动连接的后轮支架，
与所述后轮支架的上端可可转动连接的侧扶手，在后轮支架的第一位置处与所述后轮支架可转动连接的后撑杆，
与所述侧扶手以及后撑杆异轴可转动连接的推杆，
设置在所述后轮支架上的滑套，
前轮支架连杆，所述前轮支架连杆的第一端与所述滑套可转动连接，所述前轮支架连杆的第二端与前轮支架可转动连接；
侧扶手连杆，所述侧扶手连杆的第一端与所述滑套可转动连接，所述侧扶手连杆的第一端与所述侧扶手可转动连接。
可选的，还包括第一撑杆、第二撑杆、第三撑杆以及第四撑杆；
第一撑杆和第二撑杆处于中间部位并且可转动连接；
所述第二撑杆的第一端与第四撑杆的第一端可转动连接，所述第二撑杆的第二端与前轮支架连杆的第二车轮支架连杆的第一端可转动地连接，所述第四撑杆的第二端与所述第一车轮支架连杆的第一端可转动连接；
所述第一撑杆的第一端与第三撑杆的第一端可转动连接，所述第一撑杆的第二端与前轮支架连杆的第一车轮支架连杆的第二端可转动连接，所述第三撑杆的第二端与所述第二车轮支架连杆的第二端可转动连接。
可选的，还包括中间部位可转动地连接且交叉设置的上十字撑杆和下十字撑杆，
所述上十字撑杆第一端可转动地连接于后轮支架的第二后轮支架，第二端可转动地连接有第一连接件，所述第一连接件可转动地连接于第一车轮支架连杆，且第一连接件的转动轴心同轴于所述第一车轮支架连杆和滑套的转动轴心；
所述下十字撑杆第一端可转动地连接于后轮支架的第一后轮支架，第二端可转动地连接有第二连接件，所述第二连接件可转动地连接于第二车轮支架连杆，且第二连接件的转动轴心同轴于所述第二车轮支架连杆和滑套的转动轴心。
可选的，还包括前扶手，所述前扶手包括前扶手中杆以及两个前扶手连杆；
所述两个前扶手连杆对称设置且分别可转动地连接在前扶手中杆两端，每个前扶手连杆未连接前扶手中杆的一端可转动地连接有前扶手插头，所述前扶手插头插入侧扶手连杆中。
可选的，还包括相互可转动地连接的第一推把和第二推把，所述第一推把和第二推把分别可转动地连接于所述推杆。
可选的，所述第一推把和第二推把之间设有锁定件，所述锁定件用于锁定以及解锁所述第一推把和第二推把。
可选的，所述侧扶手和推杆之间设有用于锁定整车车架的锁定机构，所述锁定件解锁第一推把和第二推把且同时向下向前压推杆时，所述锁定机构自动解除对所述整车车架的锁定。
可选的，还包括：
座杆，所述座杆的第一端与前轮支架连杆可转动连接，
座杆连杆，座杆连杆的第一端与所述座杆的第二端可转动地连接，所述座杆连杆第二端与可转动地连接于后轮支架，且所述座杆连杆与所述后轮支架的 转动轴心同轴于后撑杆与后轮支架的转动轴心。
可选的，还包括与侧扶手可转动地连接的座杆滑套，所述座杆滑套内滑动设有座杆，所述座杆一端可转动地连接于侧扶手连杆，所述侧扶手连杆上端可转动地连接有前扶手插座，且所述前扶手插座的转动轴心与所述前扶手连杆与侧扶手的转动轴心同轴，所述前扶手的前扶手插头插入前扶手插座中。
一种可折叠推车，包括上述任一项所述的可折叠推车车架。
本公开通过上述结构，能够使得推车车架的折叠更加方便快捷，且折叠后的体积小，便于携带收纳，给用户带来极大的方便。而且上述结构在推车展开时，整车结构更加稳定。
附图概述
图1是本实施例一的可折叠推车车架的立体结构示意图；
图2是本实施例一的可折叠推车车架的侧视图；
图3是本实施例一的可折叠推车车架隐去上半部分后的状态示意图；
图4是本实施例一的可折叠推车车架隐去上半部分后的另一状态示意图；
图5是本实施例一的可折叠推车车架的半折叠的状态示意图；
图6是本实施例一的可折叠推车车架的半折叠的状态侧视图；
图7是本实施例一的可折叠推车车架的完全折叠的状态示意图；
图8是本实施例二的可折叠推车车架的立体结构示意图；
图9是本实施例二的可折叠推车车架的侧视图；
图10是本实施例二的可折叠推车车架的半折叠的状态示意图；
图11是本实施例二的可折叠推车车架的半折叠的状态侧视图；
图12是本实施例二的可折叠推车车架的完全折叠的状态示意图。
具体实施方式
下面结合附图并通过具体实施方式来说明本公开的技术方案。
实施例一
本实施例提供一种可折叠推车车架，在本实施例中，涉及到的“前”、“后”、“左”、“右”、“上”、“下”等方向，均以用户推车时所面向的方向，即用户推车时其正对的方向即为前方，以此为基准，来说明上述多个方向。
如图1-7所示，该可折叠推车车架包括前轮支架1、后轮支架2、侧扶手3、推 杆4、后撑杆5、前轮支架连杆6、侧扶手连杆7、滑套8、前轮组件11以及后轮组件12，其中：
上述前轮组件11安装在前轮支架1上，后轮组件12安装在后轮支架2上。
如图2所示，上述前轮支架1与后轮支架2之间通过销钉27转动销接，具体的，该后轮支架2包括左后轮支架(第一后轮支架)2a以及右后轮支架(第二后轮支架)2b，左后轮支架2a和右后轮支架2b分别通过销钉27转动销接于前轮支架1的两侧。
后轮支架2的上端与侧扶手3通过销钉29转动销接，后端(即第一位置处)与后撑杆5通过销钉33转动销接，侧扶手3通过销钉30可转动连接于推杆4，该推杆4通过销钉30还连接有千蓬杆19，即上述侧扶手3、推杆4以及千蓬杆19之间通过销钉30同轴的可转动连接，上述推杆4与后撑杆5之间通过销钉32转动销接。本实施例中，上述推杆4下端通过销钉32转动销接于后撑杆5。
在后轮支架2上设置有滑套8，上述滑套8上通过销钉36转动销接有前轮支架连杆6，通过销钉35转动销接有侧扶手连杆7，上述前轮支架连杆6未连接滑套8的一端通过销钉28转动销接于前轮支架1，上述侧扶手连杆7未连接滑套8的一端通过销钉31转动销接于侧扶手3。具体的，本实施例中，上述滑套8包括滑套8a和滑套8b。
本实施例中，如图3和图4所示，上述可折叠婴儿推车还包括中间部位通过销钉49可转动连接且交叉设置的左后撑杆(第二撑杆)23和右后撑杆(第一撑杆)22，其中左后撑杆23的一端通过销钉44转动销接有左前撑杆(第四撑杆)25，另一端通过销钉48可转动连接于前轮支架连杆6的右前轮支架连杆(第二车轮支架连杆)6b，右后撑杆22一端通过销钉45可转动连接有右前撑杆(第三撑杆)24，另一端通过销钉47可转动连接于前轮支架连杆6的左前轮支架连杆(第一车轮支架连杆)6a，上述左前撑杆25未连接左后撑杆23的一端通过销钉43可转动连接于左前轮支架连杆6a未连接右后撑杆22的一端，右前撑杆24未连接右后撑杆22的一端通过销钉46可转动连接于右前轮支架连杆6b未连接左后撑杆23的一端。
本实施例中，上述可折叠婴儿推车还包括中间部位通过销钉42可转动连接且交叉设置的上十字撑杆20和下十字撑杆21，其中上十字撑杆20一端通过销钉40b可转动连接于后轮支架2的右后轮支架2b，另一端通过销钉41a可转动连接有 左U形件(第一连接件)26a，左U形件26a通过销钉36可转动连接于左前轮支架连杆6a，且左U形件26a的转动轴心同轴于左前轮支架连杆6a和滑套8的转动轴心；
下十字撑杆21一端通过销钉40a可转动连接于后轮支架2的左后轮支架2a，另一端通过销钉41b可转动连接有右U形件(第二连接件)26b，右U形件26b通过另一个销钉36可转动连接于右前轮支架连杆6b，且右U形件26b的转动轴心同轴于右前轮支架连杆6b和滑套8的转动轴心。
本实施例中，上述可折叠婴儿推车还包括前扶手，可选的，该前扶手包括前扶手中杆16，对称设置且可转动连接在前扶手中杆16两端的两个前扶手连杆(包括左前扶手连杆15a以及右前扶手连杆15b)，每个前扶手连杆未连接前扶手中杆16的一端可转动连接有前扶手插头(包括连接于左前扶手连杆15a的左前扶手插头14a，连接于右前扶手连杆15b的右前扶手插头14b)，在将上述前扶手中杆16、前扶手连杆以及前扶手插头组装后，可将上述组装好的结构通过前扶手插头插入侧扶手连杆7中。
本实施例中，在推杆4两侧上端分别通过销钉38a和销钉38b可转动连接有左推把(第一推把)17a和右推把(第二推把)17b，左推把17a和右推把17b之间通过销钉39可转动连接，且在左推把17a和右推把17b之间设有锁定件，该锁定件用于锁定以及解锁左推把17a和右推把17b。本实施例中，上述锁定件为解锁按钮18。
本实施例中在侧扶手3和推杆4之间还设有用于锁定整车车架的锁定机构341，在锁定件解锁左推把17a和右推把17b并且向下向前压推杆4时，锁定机构341自动解除对整车车架的锁定，以完成对整车车架的折叠。
本实施例中，上述可折叠婴儿推车还设有与前轮支架连杆6通过销钉34可转动连接的座杆9，该座杆9未连接前轮支架连杆6的一端通过销钉50可转动连接有座杆连杆10，座杆连杆10未连接座杆9的一端通过销钉33可转动连接于后轮支架2，且座杆连杆10与后轮支架2的转动轴心同轴于后撑杆5与后轮支架2的转动轴心。上述座杆9上还通过销钉37可转动连接有靠背杆13。
当对本实施例的可折叠推车车架进行折叠时，首先通过锁定件解除左推把17a和右推把17b之间的锁定关系，随后将左推把17a和右推把17b向下并向前压，使得侧扶手3和推杆4之间的锁定机构341自动解锁，随后将推杆4继续下压，此时可折叠推车车架状态如图5和图6所示。
之后，继续向前并向下折叠整个车架，通过上述各个部件的联动关系，即可实现整个可折叠推车车架的完全折叠，完全折叠后的状态如图7所示。
本公开还提供一种可折叠推车，包括上述的可折叠推车车架，通过上述可折叠推车车架的结构，能够使得推车车架的折叠更加方便快捷，且折叠后的体积小，便于携带收纳，给用户带来极大的方便。而且上述结构在推车展开时，整车结构更加稳定。
实施例二
本实施例与实施例一区别在于本实施例的座杆9并非可转动连接在前轮支架连杆6上，如图8-12所示，上述座杆9滑动设置在座杆滑套51内，该座杆滑套51通过销钉52与侧扶手3可转动连接，上述座杆9一端通过销钉53可转动连接于侧扶手连杆7，侧扶手连杆7上端可转动连接有前扶手插座55，可选的，是在侧扶手3上设有连接件，该连接件与前扶手插座55可转动连接，上述前扶手插座55的转动轴心同轴于前扶手连杆7与侧扶手3的转动轴心，也就是均通过销钉54实现前扶手插座55、前扶手连杆7以及侧扶手3之间的可转动连接，上述前扶手通过前扶手插头插入前扶手插座55中。
当对本实施例的可折叠推车车架进行折叠时，首先通过锁定件解除左推把17a和右推把17b之间的锁定关系，随后将左推把17a和右推把17b向下并向前压，使得侧扶手3和推杆4之间的锁定机构341自动解锁，随后将推杆4继续下压，此时可折叠推车车架状态如图10和图11所示。
之后，继续向前并向下折叠整个车架，通过上述多个部件的联动关系，即可实现整个可折叠推车车架的完全折叠，完全折叠后的状态如图12所示。
工业实用性
本公开提供的可折叠推车车架，能够使得推车车架的折叠更加方便快捷，且折叠后的体积小，便于携带收纳，给用户带来极大的方便。而且上述结构在推车展开时，整车结构更加稳定。

Claims (10)

  1. 一种可折叠推车车架，包括：
    前轮支架(1)，
    与前轮支架(1)可可转动连接的后轮支架(2)，
    与所述后轮支架(2)的上端可可转动连接的侧扶手(3)，在后轮支架(2)的第一位置处与所述后轮支架(2)可转动连接的后撑杆(5)，
    与所述侧扶手(3)以及后撑杆(5)异轴可转动连接的推杆(4)，
    设置在所述后轮支架(2)上的滑套(8)，
    前轮支架连杆(6)，所述前轮支架连杆(6)的第一端与所述滑套(8)可转动连接，所述前轮支架连杆(6)的第二端与前轮支架(1)可转动连接；以及
    侧扶手连杆(7)，所述侧扶手连杆(7)的第一端与所述滑套(8)可转动连接，所述侧扶手连杆(7)的第一端与所述侧扶手(3)可转动连接。
  2. 根据权利要求1所述的可折叠推车车架，还包括第一撑杆(22)、第二撑杆(23)、第三撑杆(24)以及第四撑杆(25)；
    第一撑杆(22)和第二撑杆(23)处于中间部位并且可转动连接；
    所述第二撑杆(23)的第一端与第四撑杆(25)的第一端可转动连接，所述第二撑杆(23)的第二端与前轮支架连杆(6)的第二车轮支架连杆(6b)的第一端可转动地连接，所述第四撑杆(25)的第二端与所述第一车轮支架连杆(6a)的第一端可转动连接；
    所述第一撑杆(22)的第一端与第三撑杆(24)的第一端可转动连接，所述第一撑杆(22)的第二端与前轮支架连杆(6)的第一车轮支架连杆(6a)的第二端可转动连接，所述第三撑杆(24)的第二端与所述第二车轮支架连杆(6b)的第二端可转动连接。
  3. 根据权利要求2所述的可折叠推车车架，还包括中间部位可转动地连接且交叉设置的上十字撑杆(20)和下十字撑杆(21)，
    所述上十字撑杆(20)第一端可转动地连接于后轮支架(2)的第二后轮支架(2b)，第二端可转动地连接有第一连接件(26a)，所述第一连接件(26a)可转动地连接于第一车轮支架连杆(6a)，且第一连接件(26a)的转动轴心同轴于所述第一车轮支架连杆(6a)和滑套(8)的转动轴心；
    所述下十字撑杆(21)第一端可转动地连接于后轮支架(2)的第一后轮支 架(2a)，第二端可转动地连接有第二连接件(26b)，所述第二连接件(26b)可转动地连接于第二车轮支架连杆(6b)，且第二连接件(26b)的转动轴心同轴于所述第二车轮支架连杆(6b)和滑套(8)的转动轴心。
  4. 根据权利要求1所述的可折叠推车车架，还包括前扶手，所述前扶手包括前扶手中杆(16)以及两个前扶手连杆(15a，15b)；
    所述两个前扶手连杆(15a，15b)对称设置且分别可转动地连接在前扶手中杆(16)两端，每个前扶手连杆(15a，15b)未连接前扶手中杆(16)的一端可转动地连接有前扶手插头(14a，14b)，所述前扶手插头(14a，14b)插入侧扶手连杆(7)中。
  5. 根据权利要求4所述的可折叠推车车架，还包括相互可转动地连接的第一推把(17a)和第二推把(17b)，所述第一推把(17a)和第二推把(17b)分别可转动地连接于所述推杆(4)。
  6. 根据权利要求5所述的可折叠推车车架，其中，所述第一推把(17a)和第二推把(17b)之间设有锁定件(18)，所述锁定件(18)用于锁定以及解锁所述第一推把(17a)和第二推把(17b)。
  7. 根据权利要求6所述的可折叠推车车架，其中，所述侧扶手(3)和推杆(4)之间设有用于锁定整车车架的锁定机构(341)，所述锁定件(18)解锁第一推把(17a)和第二推把(17b)且同时向下向前压推杆(4)时，所述锁定机构(341)自动解除对所述整车车架的锁定。
  8. 根据权利要求7所述的可折叠推车车架，还包括：
    座杆(9)，所述座杆(9)的第一端与前轮支架连杆(6)可转动连接，
    座杆连杆(10)，座杆连杆(10)的第一端与所述座杆(9)的第二端可转动地连接，所述座杆连杆(10)第二端与可转动地连接于后轮支架(2)，且所述座杆连杆(10)与所述后轮支架(2)的转动轴心同轴于后撑杆(5)与后轮支架(2)的转动轴心。
  9. 根据权利要求7所述的可折叠推车车架，还包括与侧扶手(3)可转动地连接的座杆滑套(51)，所述座杆滑套(51)内滑动设有座杆(9)，所述座杆(9)一端可转动地连接于侧扶手连杆(7)，所述侧扶手连杆(7)上端可转动地连接有前扶手插座(55)，且所述前扶手插座(55)的转动轴心与所述前扶手连杆(7)与侧扶手(3)的转动轴心同轴，所述前扶手的前扶手插头(14a，14b)插入前 扶手插座(55)中。
  10. 一种可折叠推车，包括权利要求1-9任一所述的可折叠推车车架。
PCT/CN2017/099031 2016-12-06 2017-08-25 可折叠推车车架及可折叠推车 WO2018103377A1 (zh)

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