WO2024037648A1 - 轮距可调的童车车架 - Google Patents

轮距可调的童车车架 Download PDF

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Publication number
WO2024037648A1
WO2024037648A1 PCT/CN2023/113908 CN2023113908W WO2024037648A1 WO 2024037648 A1 WO2024037648 A1 WO 2024037648A1 CN 2023113908 W CN2023113908 W CN 2023113908W WO 2024037648 A1 WO2024037648 A1 WO 2024037648A1
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WO
WIPO (PCT)
Prior art keywords
frame
sliding
support rod
sliding member
rod group
Prior art date
Application number
PCT/CN2023/113908
Other languages
English (en)
French (fr)
Inventor
李玮烨
杨博文
黄羽茜
Original Assignee
伯瑞苔斯儿童安全股份有限公司
宝迪思婴儿用品(中山)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 伯瑞苔斯儿童安全股份有限公司, 宝迪思婴儿用品(中山)有限公司 filed Critical 伯瑞苔斯儿童安全股份有限公司
Publication of WO2024037648A1 publication Critical patent/WO2024037648A1/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
    • 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
    • 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

Definitions

  • the invention relates to the technical field of strollers, and in particular to a stroller frame with adjustable wheelbase.
  • the front and rear wheelbases of commonly used strollers generally adopt a fixed structure, which means that after the stroller is unfolded, its load-bearing structure (such as the center of gravity, load-bearing capacity distribution, etc.) is basically a fixed structure. If you need to switch the use function of the stroller, such as a single seat When switching between two-seater and two-seater, the stability of the stroller is poor. If it is necessary to meet the switch use of this type of function, the size of the stroller frame needs to be increased, which increases the manufacturing cost and is not conducive to transportation and storage.
  • load-bearing structure such as the center of gravity, load-bearing capacity distribution, etc.
  • the present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a stroller frame with adjustable wheelbase, which can meet the support requirements under various usage conditions.
  • the stroller frame with adjustable wheelbase includes a main frame and a sliding frame.
  • the main frame includes a main support rod group and a side support rod group.
  • the main support rod group is slidably provided with a first sliding frame.
  • one end of the side support rod group is rotatably connected to the first sliding member
  • the other end of the side support rod group is rotatably connected to a second sliding member
  • the end of the main support rod group is rotatably connected to a third sliding member
  • the frame is provided with a first wheel set
  • the sliding frame is provided with a second wheel set.
  • the sliding frame is slidably connected to the second sliding part and the third sliding part respectively.
  • the main support rod group, the side support rod group and the sliding frame form a three-link Mechanism, the sliding frame can move relative to the main frame to change the distance between the first wheel set and the second wheel set.
  • the stroller frame with adjustable wheelbase according to the embodiment of the present invention at least has the following beneficial effects: the wheelbase of the stroller can be adjusted as needed to meet different usage requirements.
  • the first slider when the second slider and/or the third slider are positioned on the carriage, the first slider can slide relative to the main support rod set and can change the three-bar linkage to fold or The stroller frame is unfolded so that the stroller frame can be folded or unfolded without adjusting the second sliding member or the third sliding member, which is convenient for use.
  • At least one of the first slider, the second slider and the third slider can slide relative to the three-bar linkage mechanism, so that the three-bar linkage mechanism Deforms to allow the stroller frame to be folded or unfolded.
  • a positioning mechanism is provided between the first sliding member and the main support rod group to position the relative position of the first sliding member and the main support rod group to achieve the unfolded or folded state of the vehicle frame. locking.
  • a positioning mechanism capable of positioning the second sliding part and the sliding frame is provided between the second sliding part and the sliding frame, and/or a positioning mechanism is provided between the third sliding part and the sliding frame.
  • the positioning mechanism of the third sliding part and the sliding frame is used to locate the position of the sliding frame and fix the wheelbase of the stroller.
  • positioning mechanisms are provided between the second sliding member and the sliding frame and between the third sliding member and the sliding frame to improve the stability of the vehicle frame.
  • the first wheel set is provided on the side support rod set, and cooperates with the second wheel set to form a front and rear roller support structure to meet the mobile function of the stroller.
  • the first wheel set is set at the front end of the main support rod set, and the second wheel set is set at a position close to the rear section of the sliding frame. At this time, pulling the sliding frame backward can also satisfy the adjustment of the wheelbase. Function.
  • the first sliding part and/or the second sliding part and/or the third sliding part are sleeves, and the sliding function is realized through the sleeve structure.
  • the second sliding member and the third sliding member are independent of each other, that is, the second sliding member and the third sliding member can slide independently without interfering, which can make the movement of the vehicle frame more flexible.
  • the second sliding part and the third sliding part are connected through a connecting structure, so that the second sliding part and the third sliding part are fixedly connected, which is beneficial to improving the stability of the frame and enabling a wheelbase. adjustment function.
  • the main frame is provided with a mounting structure for mounting the first seat to mount the first seat.
  • the sliding frame is provided with a mounting position for mounting the second seat to mount the second seat.
  • a hand push rod group is slidably provided on the upper end of the main support rod group to facilitate the user to control the stroller, and the position of the hand push rod group can be adjusted according to different users to improve versatility.
  • the main support rod set includes two sets of main support rods respectively distributed on both sides of the stroller frame.
  • the hand push rod set has a U-shaped structure and is connected to the two sets of main support rods respectively to connect the two sets of main support rods. Assemble the main support rod to improve the structural strength.
  • the hand push rod set includes a cross bar and two sets of connecting rods that are rotatably connected to both ends of the cross bar.
  • the connecting rod is slidably connected to the main support rod to realize the telescopic function of the hand push rod set.
  • the crossbar and the connecting rod are rotatably connected and can be used to adjust the direction of the crossbar or fold the crossbar.
  • the side support rod group includes two sets of side support rods relatively distributed on both sides of the stroller frame, the second sliding member is rotatably connected to the lower end of the side support rod, and the upper end of the side support rod is rotatable. Connected to the first sliding member, the lower end of the side support rod is extended with an extension section for connecting to the first wheel set, forming a double-side support structure and meeting the wheelbase adjustment function.
  • Figure 1 is a schematic structural diagram of the stroller frame according to an embodiment of the present invention when the wheelbase is small;
  • Figure 2 is a schematic side structural view of the stroller frame according to the embodiment of the present invention when the wheelbase is small;
  • Figure 3 is a schematic structural diagram of the stroller frame according to the embodiment of the present invention when the wheelbase is relatively large;
  • Figure 4 is a schematic side structural view of the stroller frame according to the embodiment of the present invention when the wheelbase is relatively large;
  • Figure 5 is a schematic side view of the folded stroller frame according to the embodiment of the present invention.
  • Figure 6 is a schematic structural diagram of the single-seat stroller frame according to the embodiment of the present invention.
  • Figure 7 is a schematic structural diagram of the double-seater stroller frame according to the embodiment of the present invention.
  • Main frame 100 Main support rod group 110, main support rod 111, side support rod group 120.
  • orientation descriptions such as up, down, front, back, left, right, etc., are based on the orientation or position relationships shown in the drawings and are only In order to facilitate the description of the present invention and simplify the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present invention.
  • the stroller frame with adjustable wheelbase includes a main frame 100 and a sliding frame 200 .
  • the main frame 100 includes a main support rod group 110 and a side support rod group 120 .
  • the support rod group 110 is slidably provided with a first sliding member 510.
  • One end of the side support rod group 120 is rotatably connected to the first sliding member 510.
  • the other end of the side support rod group 120 is rotatably connected to a second sliding member 520.
  • the main The end of the support rod group 110 is rotatably connected to a third sliding member 530.
  • the main frame 100 is provided with a first wheel set 300.
  • the sliding frame 200 is provided with a second wheel set 400.
  • the sliding frame 200 is connected to the second sliding member 520 and The third sliding member 530 is slidably connected.
  • the main support rod group 110, the side support rod group 120 and the sliding frame 200 form a three-bar linkage.
  • the sliding frame 200 can move relative to the main frame 100 to change the first wheel set 300 and the second wheel set 300.
  • the distance between the two wheel sets 400 means that the wheelbase of the stroller can be adjusted as needed to meet different usage requirements.
  • the distance between the first wheel set 300 and the second wheel set 400 is small.
  • the stroller frame can be shortened to a smaller size, and the control and placement are more flexible, and can be Meet the requirements for single-seat use (as shown in Figure 6); as shown in Figures 3 and 4, push the sliding frame 200 forward so that the second wheel set 400 moves forward, increasing the size of the first wheel set 300 and the second wheel set.
  • the distance between the groups 400 can be installed with two seats (as shown in Figure 7) and has high stability; as shown in Figure 5, the first sliding member 510
  • the shape of the three-link mechanism can be changed to reach the folded state, and the space occupied when folded can be reduced by moving the sliding frame 200 for convenience. Placement of stroller.
  • At least one of the first slider 510 , the second slider 520 and the third slider 530 can slide relative to the three-bar linkage mechanism, so that the three The linkage deforms to allow the stroller frame to be folded or unfolded.
  • the main support rod group 110, the side support rod group 120 and the sliding frame 200 form a three-link mechanism, and at least one sliding structure of the first sliding member 510, the second sliding member 520 and the third sliding member 530 can be used , changing the shape of the three-link mechanism to realize folding and unfolding of the stroller frame.
  • the first slider 510, the second slider 520, and the third slider 530 slide with respect to the three-link mechanism, which means that the first slider 510 slides with respect to the main support rod group 110. , or the second sliding member 520 slides relative to the sliding frame 200, or the third sliding member 530 slides relative to the sliding frame 200, thereby deforming the three-bar linkage.
  • the first sliding member 510 can slide relative to the main support rod group 110 And can change the shape of the three-link mechanism to fold or unfold the stroller frame, and can fold or unfold the stroller frame without adjusting the second sliding member 520 or the third sliding member 530, which is convenient to use and the operation is simpler and faster. .
  • the first sliding member 530 can be locked by sliding the first sliding member 530.
  • the member 510 is used for folding or unfolding the frame. Therefore, in the present invention, when folding or unfolding, there is no need to unlock the second sliding member 520 and the third sliding member 530. It is enough to unlock the folding or unfolding switch of the frame. Reduce operations and facilitate use.
  • the user can also unlock the second sliding member 520 and/or the third sliding member 530 and then perform the folding or unfolding operation, which can also meet the required functions.
  • a positioning mechanism is provided between the first sliding member 510 and the main support rod group 110 to position the relative position of the first sliding member 510 and the main support rod group 110 to realize the vehicle frame unfolding or Lock in folded state.
  • the positioning mechanism can be a pin positioning mechanism, a pinball positioning mechanism, a screw pressing positioning mechanism or a cam pressing mechanism, etc., which can position the relative position of the first sliding member 510 and the main support rod group 110 when the frame is unfolded.
  • the positioning mechanism can be a pin positioning mechanism, a pinball positioning mechanism, a screw pressing positioning mechanism or a cam pressing mechanism, etc., which can position the relative position of the first sliding member 510 and the main support rod group 110 when the frame is unfolded.
  • the positioning mechanism can be a pin positioning mechanism, a pinball positioning mechanism, a screw pressing positioning mechanism or a cam pressing mechanism, etc.
  • a positioning mechanism capable of positioning the second sliding member 520 and the sliding frame 200 is provided between the second sliding member 520 and the sliding frame 200, and/or a third A positioning mechanism capable of positioning the third sliding member 530 and the sliding frame 200 is provided between the third sliding member 530 and the sliding frame 200 to position the sliding frame 200 and fix the wheelbase of the stroller.
  • the relative position of the second sliding member 520 and the sliding frame 200 can be positioned through the positioning mechanism, and/or the relative position of the third sliding member 530 and the sliding frame 200, Thereby, the sliding frame 200 is fixed relative to the main frame 100, achieving the effect of fixing the wheelbase of the stroller.
  • a positioning mechanism can also be provided on the sliding frame 200 and the main frame 100 to position the sliding frame 200, such as a latch is provided on the main frame 100, and a plurality of locking mechanisms are provided on the sliding frame 200.
  • the latch holes distributed along the sliding direction can also achieve the effect of fixing the wheelbase of the stroller.
  • the positioning mechanism is a latch mechanism.
  • the second slider 520 and/or the third slider 530 are slidably provided with latch pins.
  • the sliding frame 200 is provided with a plurality of latch holes distributed along the sliding direction. The pins can be inserted into different pin holes to achieve different positioning effects.
  • the positioning mechanism may also be a pinball positioning mechanism, a screw pressing positioning mechanism or a cam pressing mechanism, etc., which will not be described in detail here.
  • positioning mechanisms are provided between the second sliding member 520 and the sliding frame 200 and between the third sliding member 530 and the sliding frame 200 to improve the stability of the vehicle frame.
  • a positioning mechanism may be provided only between the second sliding member 520 and the sliding frame 200 or between the third sliding member 530 and the sliding frame 200, which may also satisfy the requirement of positioning the sliding frame. 200 requirement.
  • the first wheel set 300 is provided on the side support rod set 120, and cooperates with the second wheel set 400 to form a front and rear roller support structure to meet the mobile function of the stroller.
  • the second wheel set 400 is disposed at the front section of the sliding frame 200, the main support rod group 110 cooperates with the third sliding member 530 to be connected to the position near the front section of the sliding frame 200, and the side support rod group 120 cooperates with the third sliding member 530.
  • the two sliding members 520 are connected to the sliding frame 200 near the rear section to form a triangular support structure, and the side support rod group 120 continues to extend downward and is provided with a third
  • the wheel set 300 allows the second wheel set 400 and the first wheel set 300 to form front and rear roller support structures respectively.
  • the first wheel set 300 can also be directly or indirectly provided on the main support rod group 110.
  • an auxiliary support rod can be extended on the main support rod group 110 for use. Installing the first wheel set 300 can also meet the support requirements, and can also realize the adjustment of the front and rear wheelbase.
  • the first wheel set 300 is disposed at the front end of the main support rod set 110, and the second wheel set 400 is disposed near the rear section of the sliding frame 200. At this time, the sliding frame 200 can be pulled back. Meet the wheelbase adjustment function.
  • the first sliding part 510 and/or the second sliding part 520 and/or the third sliding part 530 are sleeves, and the sliding function is realized through the sleeve structure. .
  • the first sliding part 510, the second sliding part 520 and the third sliding part 530 are sleeves, the sliding frame 200 has a frame structure, and both sides are straight pipes, the second sliding part 520 and the third sliding part 530 It is set on the straight pipe to adjust the position of the sliding frame 200 and realize wheelbase adjustment.
  • the main support rod group 110 includes two sets of main support rods 111 respectively distributed on both sides of the stroller frame.
  • the first sliding member 510 is set On the main support rod 111, it is used to unfold or fold the frame.
  • first sliding member 510 , the second sliding member 520 and the third sliding member 530 may also be slide rails and slide groove structures.
  • first sliding member 510 , the second sliding member 510 and the third sliding member 530 can be The sliding member 520 and the third sliding member 530 are configured in a T-shaped or dovetail-shaped structure, and a T-shaped groove or a dovetail groove is provided on the corresponding rod member to satisfy the sliding function.
  • first sliding member 510, the second sliding member 520, and the third sliding member 530 are sleeves, and connecting joints are provided on the sleeves, and the connecting joints are rotationally connected to the corresponding rods.
  • the second sliding member 520 and the third sliding member 530 are independent of each other, that is, the second sliding member 520 and the third sliding member 530 can slide independently without interfering, which can make the movement of the vehicle frame more convenient. flexible.
  • the second sliding member 520 and the third sliding member 530 can slide independently without interfering, and can be more flexible when the vehicle frame is unfolded or folded (under the premise of contacting the positioning mechanism).
  • the second sliding part 520 and the third sliding part 530 are connected through a connecting structure, so that the second sliding part 520 and the third sliding part 530 are fixedly connected, which is beneficial to improving the stability of the vehicle frame, and Can have wheelbase adjustment function.
  • the second sliding member 520 and the third sliding member 530 can be connected through a connecting rod or a sleeve set on the sliding frame 200 so that the two are linked.
  • the first sliding member 510 can be expanded or folded by sliding the first sliding member 510 .
  • the second sliding member 520 and the third sliding member 530 of the vehicle frame are only used to cooperate with the sliding frame 200 to realize the wheelbase adjustment function.
  • the second sliding member 520 and the third sliding member 530 can be an integrated structure, that is, the whole is a long sliding member, the main support rod group 110 and the side support rod group. 120 are respectively rotatably connected to both ends of the long sliding member.
  • the second sliding member 520 and the third sliding member 530 are located between two ends of the sliding frame 200. That is, the second sliding member 520 and the third sliding member 530 may be disposed near the middle of the sliding frame 200. position, the second sliding member 520 and the third sliding member 530 can be independent structures or connected through a connecting mechanism, and can also meet the needs of the wheelbase adjustment function and the frame folding.
  • the main frame 100 is provided with an installation structure for installing the first seat 910 to install the first seat 910 .
  • the installation structure is an insertion seat 911.
  • the first seat 910 can be detachably installed to the main frame 100 through an insertion mechanism. It is conceivable that the installation structure can also be a buckle installation. structure etc.
  • the sliding frame 200 is provided with a mounting position for mounting the second seat 920 to mount the second seat 920 .
  • the sliding frame 200 is a frame-shaped structure enclosed by pipes.
  • the installation positions are located at the pipes on both sides of the sliding frame 200 .
  • the second seat 920 is provided with a buckle-type structure.
  • the fastener 921 installed on the pipe fitting realizes the detachable installation of the second seat 920 through the cooperation of the fastener 921 and the pipe fitting, thereby realizing the switching function between a single seat and a double seat.
  • a push rod set 130 is slidably provided on the upper end of the main support rod set 110 to facilitate the user to control the stroller and can be adjusted according to different users.
  • the position of the hand push rod group 130 improves versatility.
  • the sliding structure of the hand push rod group 130 is inserted into the main support rod group 110 through a sleeve, so that the position of the hand push rod group 130 can be adjusted telescopically. There is also a gap between the hand push rod group 130 and the main support rod group 110.
  • a positioning mechanism is configured to position the extended length of the hand push rod group 130.
  • the hand push rod group 130 can also be fixedly arranged on the main support rod group 110 .
  • the main support rod group 110 includes two sets of main support rods 111 respectively distributed on both sides of the stroller frame, and the hand push rod group 130 has a U-shaped structure. They are respectively connected to two sets of main support rods 111 to connect the two sets of main support rods 111 to improve the structural strength.
  • the main support rod group 110 can also be configured with other auxiliary rod groups, such as a transverse support rod between the two sets of main support rods 111, or between the two sets of main support rods 111.
  • Cross-distributed scissor-shaped rod groups are arranged between them to improve the structural strength or meet different use functions.
  • the hand push rod group 130 includes a cross bar 131 and two sets of connecting rods 132 that are rotatably connected to both ends of the cross bar 131.
  • the connecting rods 132 are connected to the main support.
  • the rod 111 is slidably connected to realize the telescopic function of the hand push rod group 130.
  • the cross bar 131 and the connecting rod 132 are rotatably connected and can be used to adjust the direction of the cross bar 131 or fold the cross bar 131.
  • the cross bar 131 and the connecting rod 132 are connected through a rotating joint and have a positioning mechanism. As shown in Figure 5, when folded, the cross bar 131 can be rotated and folded to reduce the space occupied when folded.
  • the hand push rod set 130 may also be a U-shaped tube with a fixed structure.
  • the side support rod group 120 includes two sets of side support rods 121 relatively distributed on both sides of the stroller frame, and the second sliding member 520 is rotatably connected to the side support rods 121 .
  • the lower end of the support rod 121 and the upper end of the side support rod 121 are rotatably connected to the first sliding member 510.
  • the lower end of the side support rod 121 is extended with an extension section 121a for connecting the first wheel set 300, forming a double-sided support structure, and Meet the wheelbase adjustment function.
  • the side support rod group 120, the main support rod group 110, and the sliding frame 200 form a bilateral triangular support structure, which has good structural strength.
  • the first wheel set 300 includes rollers distributed on both sides of the frame, and the rollers are connected through connecting shafts to enhance the structural strength of the frame.
  • the first wheel set 300 may not be disposed on the side support rod 121.
  • the lower part of the side support rod 121 in the above embodiment is eliminated, and the first wheel set 300 is disposed on the main support rod.
  • the second wheel group 400 is arranged at a position close to the rear section of the sliding frame 200. At this time, pulling the sliding frame 200 can also satisfy the wheelbase adjustment function.
  • the sliding pair mechanism and the rotating pair mechanism involved can be equipped with a positioning mechanism to fix the sliding position or the rotating position to realize the adjustment function of the frame (such as folding, unfold, raise or lower, etc.).
  • Figures 6 and 7 are schematic structural diagrams of the stroller frame of the present invention when used in specific applications.
  • the stroller frame when the stroller frame is adjusted to a smaller wheelbase, the stroller frame can be used
  • the first seat 910 is installed to form a single-seat stroller; as shown in Figure 7, when the stroller frame is adjusted to a larger wheelbase, the stroller frame can be used to install the first seat 910 and the second seat 920 to form a two-seat stroller.
  • the sliding frame 200 is used to install the cargo basket 930, which can be used to place items. Since the sliding frame 200 does not have an integral sliding structure, it is not necessary to adjust the wheelbase. It affects the normal use of the cargo basket 930.
  • the cargo basket 930 may be a cloth basket or a plastic mesh basket.

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

Abstract

一种轮距可调的童车车架，包括主框架（100）、滑动架（200），主框架（100）包括主支撑杆组（110）及侧支撑杆组（120），主支撑杆组（110）可滑动设置有第一滑动件（510），侧支撑杆组（120）的一端可转动连接至第一滑动件（510），侧支撑杆组（120）的另一端可转动连接有第二滑动件（520），主支撑杆组（110）的端部可转动连接有第三滑动件（530），主框架（100）设置有第一轮组（300），滑动架（200）设置有第二轮组（400），滑动架（200）分别与第二滑动件（520）和第三滑动件（530）可滑动连接，主支撑杆组（110）、侧支撑杆组（120）及滑动架（200）形成三连杆机构，滑动架（200）能够相对于主框架（100）移动，以改变第一轮组（300）和第二轮组之间（400）的距离，可以根据需要对童车的轮距进行调整，满足不同的使用要求。

Description

轮距可调的童车车架 技术领域
本发明涉及童车技术领域，特别涉及一种轮距可调的童车车架。
背景技术
目前，常用的童车的前后轮距一般采用固定式结构，也即使得童车展开后其承载结构(如承载重心、承载力分配等)基本为固定结构，若需切换童车的使用功能，如单座和双座切换时，童车的稳定性较差，若需要满足该类功能的切换使用，则需增大童车车架的尺寸，增大制造成本，并且不利于搬运和存放。
发明内容
本发明旨在至少解决现有技术中存在的技术问题之一。为此，本发明提出一种轮距可调的童车车架，能够满足多种使用状态下的支撑要求。
根据本发明的第一方面实施例的轮距可调的童车车架，包括主框架、滑动架，主框架包括主支撑杆组及侧支撑杆组，主支撑杆组可滑动设置有第一滑动件，侧支撑杆组的一端可转动连接至第一滑动件，侧支撑杆组的另一端可转动连接有第二滑动件，主支撑杆组的端部可转动连接有第三滑动件，主框架设置有第一轮组，滑动架设置有第二轮组，滑动架分别与第二滑动件和第三滑动件可滑动连接，主支撑杆组、侧支撑杆组及滑动架形成三连杆机构，滑动架能够相对于主框架移动，以改变第一轮组和第二轮组之间的距离。
根据本发明实施例的轮距可调的童车车架，至少具有如下有益效果：可以根据需要对童车的轮距进行调整，满足不同的使用要求。
在本发明的一些实施例中，第二滑动件和/或第三滑动件被定位在滑动架时，第一滑动件能够相对于主支撑杆组滑动并能够改变三连杆机构，以折叠或展开童车车架，以使得不调整第二滑动件或第三滑动件的前提下能够折叠或展开车架，方便使用。
在本发明的一些实施例中，所述第一滑动件、所述第二滑动件和所述第三滑动件三者中至少一个能够相对于所述三连杆机构滑动，使三连杆机构发生变形，以使童车车架能够收叠或展开。
在本发明的一些实施例中，第一滑动件与主支撑杆组之间设置有定位机构，以定位第一滑动件与主支撑杆组的相对位置，以实现车架展开或折叠状态时的锁定。
在本发明的一些实施例中，第二滑动件与滑动架之间设置有能够定位第二滑动件与滑动架的定位机构，和/或，第三滑动件与滑动架之间设置有能够定位第三滑动件与滑动架的定位机构，以定位滑动架的位置，固定童车的轮距。
在本发明的一些实施例中，第二滑动件与滑动架之间、第三滑动件与滑动架之间均设置有定位机构，以提高车架的稳定性。
在本发明的一些实施例中，第一轮组设置在侧支撑杆组，配合第二轮组形成前后滚轮支撑结构，满足童车的移动功能。
在本发明的一些实施例中，第一轮组设置在主支撑杆组的前端，第二轮组设置在滑动架靠近后段的位置，此时后拉滑动架，也可满足轮距的调节功能。
在本发明的一些实施例中，第一滑动件和/或第二滑动件和/或第三滑动件为套筒，通过套装结构实现可滑动功能。
在本发明的一些实施例中，第二滑动件与第三滑动件相互独立，即第二滑动件与第三滑动件可独立滑动且不干涉，可使得车架的活动更为灵活。
在本发明的一些实施例中，第二滑动件与第三滑动件通过连接结构连接，使得第二滑动件与第三滑动件固定连接，有利于提高车架的稳定性，并且能够具有轮距调节功能。
在本发明的一些实施例中，主框架设置有用于安装第一座位的安装结构，以安装第一座位。
在本发明的一些实施例中，滑动架设置有用于安装第二座位的安装位，以安装第二座位。
在本发明的一些实施例中，主支撑杆组的上端可滑动设置有手推杆组，以便于使用者控制童车，并可根据不同的使用者调整手推杆组的位置，提高通用性。
在本发明的一些实施例中，主支撑杆组包括两组分别分布在童车车架两侧的主支撑杆，手推杆组呈U型结构并分别连接至两组主支撑杆，以连接两组主支撑杆，提高结构强度。
在本发明的一些实施例中，手推杆组包括横杆及两组分别可转动连接至横杆两端的连接杆，连接杆与主支撑杆可滑动连接，实现手推杆组的伸缩功能，横杆与连接杆可转动连接，可用于调整横杆的方向或收叠横杆。
在本发明的一些实施例中，侧支撑杆组包括两组相对分布在童车车架两侧的侧支撑杆，第二滑动件可转动连接至侧支撑杆的下端，侧支撑杆的上端可转动连接至第一滑动件，侧支撑杆的下端延伸设置有用于连接第一轮组的延伸段，形成双侧支撑结构，并满足轮距调节功能。
附图说明
本发明的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1为本发明实施例的童车车架的轮距较小时的结构示意图；
图2为本发明实施例的童车车架的轮距较小时的侧面结构示意图；
图3为本发明实施例的童车车架的轮距较大时的结构示意图；
图4为本发明实施例的童车车架的轮距较大时的侧面结构示意图；
图5为本发明实施例的童车车架的折叠时的侧面结构示意图；
图6为本发明实施例的童车车架单座使用时的结构示意图；
图7为本发明实施例的童车车架双座使用时的结构示意图。
附图标记：
主框架100、主支撑杆组110、主支撑杆111、侧支撑杆组
120、侧支撑杆121、延伸段121a、手推杆组130、横杆131、连接杆132；
滑动架200；
第一轮组300；
第二轮组400；
第一滑动件510、第二滑动件520、第三滑动件530；
第一座位910、插装座911、第二座位920、扣件921、载物
篮930。
具体实施方式
下面详细描述本发明的实施例，实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
在本发明的描述中，需要理解的是，涉及到方位描述，例如上、下、前、后、左、右等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
在本发明的描述中，如果有描述到第一、第二只是用于区分技术特征为目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量或者隐含指明所指示的技术特征的先后关系。
本发明的描述中，除非另有明确的限定，设置、安装、连接等词语应做广义理解，所属技术领域技术人员可以结合技术方案的具体内容合理确定上述词语在本发明中的具体含义。
如图1至图4所示，根据本发明实施例的轮距可调的童车车架，包括主框架100、滑动架200，主框架100包括主支撑杆组110及侧支撑杆组120，主支撑杆组110可滑动设置有第一滑动件510，侧支撑杆组120的一端可转动连接至第一滑动件510，侧支撑杆组120的另一端可转动连接有第二滑动件520，主支撑杆组110的端部可转动连接有第三滑动件530，主框架100设置有第一轮组300，滑动架200设置有第二轮组400，滑动架200分别与第二滑动件520和第三滑动件530可滑动连接，主支撑杆组110、侧支撑杆组120及滑动架200形成三连杆机构，滑动架200能够相对于主框架100移动，以改变第一轮组300和第二轮组400之间的距离，即可以根据需要对童车的轮距进行调整，满足不同的使用要求。
具体的，如图1、图2所示，第一轮组300和第二轮组400之间的距离较小，此时童车车架可以缩短至较小，操控和放置都较为灵活，并可满足单座使用的要求(如图6所示)；如图3、图4所示，向前推动滑动架200，使得第二轮组400前移，增大第一轮组300和第二轮组400之间的距离，由于支撑的跨度及空间增大了，故而能够安装两个座位(如图7所示)，并且具有较高的稳定性；如图5所示，第一滑动件510、第二滑动件520或第三滑动件530的发生相对滑动时，均能改变三连杆机构的形状，从而达到折叠状态，并且可通过移动滑动架200减少收叠时的占用空间，以方便童车的放置。
在本发明的一些实施例中，所述第一滑动件510、所述第二滑动件520和所述第三滑动件530三者中至少一个能够相对于所述三连杆机构滑动，使得三连杆机构发生变形，以使童车车架能够收叠或展开。
即，主支撑杆组110、侧支撑杆组120及滑动架200形成三连杆机构，可以利用第一滑动件510、第二滑动件520、第三滑动件530三者中的至少一个滑动结构，改变三连杆机构的形状，实现童车车架的折叠和展开。
具体的，所述第一滑动件510、所述第二滑动件520、所述第三滑动件530对于所述三连杆机构滑动，是指，第一滑动件510相对主支撑杆组110滑动，或，所述第二滑动件520相对于滑动架200滑动，或，所述第三滑动件530相对于滑动架200，从而使三连杆机构发生变形
如图5所示，在本发明的一些实施例中，第二滑动件520和/或第三滑动件530被定位在滑动架200时，第一滑动件510能够相对于主支撑杆组110滑动并能够改变三连杆机构的形状，以折叠或展开童车车架，能够在不调整第二滑动件520或第三滑动件530的前提下折叠或展开车架，方便使用，操作更为简易快捷。
具体的，在具体实施过程中，滑动架200移动至所选位置后，为保证机构稳定性，通常需要锁定第二滑动件520和/或第三滑动件530，此时可通过滑动第一滑动件510进行车架的收叠或展开，故而，在本发明中，折叠或展开时，可不需解锁第二滑动件520及第三滑动件530，进行解锁车架的折叠或展开开关即可，减少操作，方便使用。
需要说明的是，在具体实施过程中，使用者也可解锁第二滑动件520和/或第三滑动件530后再进行折叠或展开操作，也可满足使用的功能。
在本发明的一些实施例中，第一滑动件510与主支撑杆组110之间设置有定位机构，以定位第一滑动件510与主支撑杆组110的相对位置，以实现车架展开或折叠状态时的锁定。
具体的，定位机构可为插销定位机构、弹珠定位机构、螺钉顶压定位机构或凸轮顶压机构等，可在车架展开时定位第一滑动件510与主支撑杆组110的相对位置，从而保持车架的展开状态，保持车架的稳定性，或，可在车架折叠时定位第一滑动件510与主支撑杆组110的相对位置，从而保持车架的折叠状态，使得车架在折叠放置时不会意外展开。
在本发明的一些实施例中，第二滑动件520与滑动架200之间设置有能够定位第二滑动件520与滑动架200的定位机构，和/或，第 三滑动件530与滑动架200之间设置有能够定位第三滑动件530与滑动架200的定位机构，以定位滑动架200的位置，固定童车的轮距。
具体的，当滑动架200滑动至设定的位置后，可以通过定位机构定位第二滑动件520与滑动架200的相对位置，和/或，第三滑动件530与滑动架200的相对位置，从而使得滑动架200相对于主框架100固定，达到固定童车的轮距的效果。
能够想到的是，在本发明的一些实施例中，也可在滑动架200与主框架100设置定位机构定位滑动架200的位置，如在主框架100上设置插销，在滑动架200上设置多个沿滑动方向分布的插销孔，也可达到固定童车的轮距的效果。
在本发明的一些实施例中，定位机构为插销机构，在第二滑动件520和/或第三滑动件530滑动设置有插销，在滑动架200上设置多个沿滑动方向分布的插销孔，插销能够插入不同的插销孔，从而达到不同的定位效果。
能够想到的是，在本发明的一些实施例中，定位机构还可为弹珠定位机构、螺钉顶压定位机构或凸轮顶压机构等，在此不作详述。
在本发明的一些实施例中，第二滑动件520与滑动架200之间、第三滑动件530与滑动架200之间均设置有定位机构，以提高车架的稳定性。
能够想到的是，在本发明的一些实施例中，也可仅在第二滑动件520与滑动架200之间或第三滑动件530与滑动架200之间设置定位机构，也可满足定位滑动架200的要求。
如图1至图7所示，在本发明的一些实施例中，第一轮组300设置在侧支撑杆组120，配合第二轮组400形成前后滚轮支撑结构，满足童车的移动功能。
具体的，如图2所示，第二轮组400设置在滑动架200的前段，主支撑杆组110配合第三滑动件530连接至滑动架200靠近前段的位置，侧支撑杆组120配合第二滑动件520连接至滑动架200靠近后段的位置，形成三角支撑结构，且侧支撑杆组120继续向下延伸并设置第 一轮组300，使得第二轮组400与第一轮组300分别形成前后滚轮支撑结构。
能够想到的是，在本发明的一些实施例中，第一轮组300也可直接或间接的设置在主支撑杆组110，如，可在主支撑杆组110上延伸设置辅助支撑杆用于安装第一轮组300，也可达到支撑要求，并也能够实现前后轮距的调节。
在本发明的一些实施例中，第一轮组300设置在主支撑杆组110的前端，第二轮组400设置在滑动架200靠近后段的位置，此时后拉滑动架200，也可满足轮距的调节功能。
如图1至图7所示，在本发明的一些实施例中，第一滑动件510和/或第二滑动件520和/或第三滑动件530为套筒，通过套装结构实现可滑动功能。
具体的，第一滑动件510、第二滑动件520和第三滑动件530为套筒，滑动架200呈框型结构，且两侧为直管，第二滑动件520和第三滑动件530套装在该直管上，以用于调整滑动架200的位置，实现轮距调节，主支撑杆组110包括两组分别分布在童车车架两侧的主支撑杆111，第一滑动件510套装在主支撑杆111上，以用于展开或收叠车架。
能够想到的是，在本发明的一些实施例中，第一滑动件510、第二滑动件520及第三滑动件530还可为滑轨滑槽结构，如将第一滑动件510、第二滑动件520和第三滑动件530设置为T型或燕尾型结构，在对应的杆件上设置T型槽或燕尾槽，也可满足可滑动设置的功能。
在本发明的一些实施例中，侧支撑杆组120与第一滑动件510之间、侧支撑杆组120与第二滑动件520之间、主支撑杆组110与第三滑动件530之间通过转动关节连接。
具体的，第一滑动件510、第二滑动件520、第三滑动件530为套筒，套筒上设置有连接关节，连接关节与对应的杆件进行转动连接。
在本发明的一些实施例中，第二滑动件520与第三滑动件530相互独立，即第二滑动件520与第三滑动件530可独立滑动且不干涉，可使得车架的活动更为灵活。
具体的，第二滑动件520与第三滑动件530可独立滑动且不干涉，可在车架的展开或收叠时更为灵活(接触定位机构的前提下)。
在本发明的一些实施例中，第二滑动件520与第三滑动件530通过连接结构连接，使得第二滑动件520与第三滑动件530固定连接，有利于提高车架的稳定性，并且能够具有轮距调节功能。
具体的，第二滑动件520与第三滑动件530可通过连杆或套装在滑动架200上的套管连接，使得二者联动，此时可通过滑动第一滑动件510来展开或收叠车架，第二滑动件520和第三滑动件530仅用于与滑动架200配合，实现轮距调节功能。
能够想到的是，在本发明的一些实施例中，第二滑动件520与第三滑动件530可为一体式结构，即整体为一长型滑动件，主支撑杆组110和侧支撑杆组120分别转动连接至该长型滑动件的两端。
在本发明的一些实施例中，第二滑动件520与第三滑动件530位于滑动架200两端之间，即，第二滑动件520与第三滑动件530可设置在滑动架200靠近中部的位置，第二滑动件520与第三滑动件530可为独立结构或通过连接机构连接，也可满足轮距调节功能及车架折叠的需求。
如图1、图3所示，在本发明的一些实施例中，主框架100设置有用于安装第一座位910的安装结构，以安装第一座位910。
具体的，如图6、图7所示，安装结构为插装座911，第一座位910能够通过插装机构可拆卸的安装至主框架100，能够想到的是，安装结构还可为扣装结构等。
在本发明的一些实施例中，滑动架200设置有用于安装第二座位920的安装位，以安装第二座位920。
具体的，如图7所示，滑动架200为由管件围闭形成的框型结构，安装位位于滑动架200两侧的管件，第二座位920设置有能够扣 装在该管件上的扣件921，通过扣件921与管件的配合实现第二座位920的可拆卸安装，实现单座与双座的切换功能。
如图1、图3所示，在本发明的一些实施例中，主支撑杆组110的上端可滑动设置有手推杆组130，以便于使用者控制童车，并可根据不同的使用者调整手推杆组130的位置，提高通用性。
具体的，手推杆组130通过套管插接的滑动结构设置在主支撑杆组110，以能够伸缩调整手推杆组130的位置，手推杆组130与主支撑杆组110之间还配置有定位机构，以定位手推杆组130伸出的长度。
能够想到的是，在本发明的一些实施例中，手推杆组130也可固定设置于主支撑杆组110。
如图1、图3所示，在本发明的一些实施例中，主支撑杆组110包括两组分别分布在童车车架两侧的主支撑杆111，手推杆组130呈U型结构并分别连接至两组主支撑杆111，以连接两组主支撑杆111，提高结构强度。
能够想到的是，在本发明的一些实施例中，主支撑杆组110还可配置其它辅助杆组，如在两组主支撑杆111之间设置横支撑杆，或在两组主支撑杆111之间设置交叉分布的剪叉状杆组等，以提高结构强度或满足不同的使用功能。
如图1、图3所示，在本发明的一些实施例中，手推杆组130包括横杆131及两组分别可转动连接至横杆131两端的连接杆132，连接杆132与主支撑杆111可滑动连接，实现手推杆组130的伸缩功能，横杆131与连接杆132可转动连接，可用于调整横杆131的方向或收叠横杆131。
具体的，横杆131与连接杆132通过转动关节进行连接，并具有定位机构，如图5所示，收叠时，横杆131可转动翻折，以减少收叠时所占据的空间。
能够想到的是，在本发明的一些实施例中，手推杆组130还可为固定结构的U型管。
如图1、图3所示，在本发明的一些实施例中，侧支撑杆组120包括两组相对分布在童车车架两侧的侧支撑杆121，第二滑动件520可转动连接至侧支撑杆121的下端，侧支撑杆121的上端可转动连接至第一滑动件510，侧支撑杆121的下端延伸设置有用于连接第一轮组300的延伸段121a，形成双侧支撑结构，并满足轮距调节功能。
具体的，侧支撑杆组120与主支撑杆组110、滑动架200形成双侧的三角支撑结构，具有较好的结构强度。
在本发明的一些实施例中，第一轮组300包括分布在车架两侧的滚轮，滚轮之间通过连接轴连接，以增强车架的结构强度。
能够想到的是，在本发明的一些实施例中，第一轮组300可不设置在侧支撑杆121上，取消上述实施例侧支撑杆121的下部，将第一轮组300设置在主支撑杆组110的前端，第二轮组400设置在滑动架200靠近后段的位置，此时拉动滑动架200，也可满足轮距的调节功能。
需要说明的是，在本发明的一些实施例中，所涉及的滑动副机构及转动副机构中，均可配置定位机构，以固定滑动位置或转动位置，实现车架的调整功能(如折叠、展开、升高或降低等)。
如图6、图7所示，图6、图7是本发明的童车车架具体应用时的结构示意图，如图6所示，当童车车架调整至轮距较小时，童车车架可用于安装第一座位910，形成单座童车；如图7所示，当童车车架调整至轮距较大时，童车车架可用于安装第一座位910和第二座位920，形成双座童车。
如图6、图7所示，在本发明的一些实施例中，滑动架200用于安装载物篮930，可用于放置物品，且由于滑动架200未整体滑动结构，调整轮距时并不影响载物篮930正常使用。
具体的，载物篮930可为布质篮或塑料网篮。
当然，本发明创造并不局限于上述实施方式，熟悉本领域的技术人员在不违背本发明精神的前提下还可作出等同变形或替换，这些等同的变型或替换均包含在本申请权利要求所限定的范围内。

Claims (12)

  1. 一种轮距可调的童车车架，其特征在于，
    包括：
    主框架(100)，所述主框架(100)包括主支撑杆组(110)及侧支撑杆组(120)，所述主支撑杆组(110)可滑动设置有第一滑动件(510)，所述侧支撑杆组(120)的一端可转动连接至所述第一滑动件(510)，所述侧支撑杆组(120)的另一端可转动连接有第二滑动件(520)，所述主支撑杆组(110)的端部可转动连接有第三滑动件(530)，所述主框架(100)设置有第一轮组(300)；
    滑动架(200)，所述滑动架(200)设置有第二轮组(400)，所述滑动架(200)分别与所述第二滑动件(520)和所述第三滑动件(530)可滑动连接，所述主支撑杆组(110)、所述侧支撑杆组(120)及所述滑动架(200)形成三连杆机构，所述滑动架(200)能够相对于所述主框架(100)移动，以改变所述第一轮组(300)和所述第二轮组(400)之间的距离。
  2. 根据权利要求1所述的轮距可调的童车车架，其特征在于，
    所述第二滑动件(520)与所述滑动架(200)之间设置有定位机构；
    和/或，
    所述第三滑动件(530)与所述滑动架(200)之间设置有定位机构。
  3. 根据权利要求1或2所述的轮距可调的童车车架，其特征在于，
    所述第一滑动件(510)、所述第二滑动件(520)和所述第三滑动件(530)三者中至少一个能够相对于所述三连杆机构滑动，以使童车车架能够收叠或展开。
  4. 根据权利要求1所述的轮距可调的童车车架，其特征在于，
    所述第一滑动件(510)、所述第二滑动件(520)和/或所述第三滑动件(530)为套筒。
  5. 根据权利要求1所述的轮距可调的童车车架，其特征在于，
    所述第二滑动件(520)与所述第三滑动件(530)相互独立。
  6. 根据权利要求1所述的轮距可调的童车车架，其特征在于，
    所述第二滑动件(520)与所述第三滑动件(530)通过连接结构连接；
    和/或，
    所述第二滑动件(520)与所述第三滑动件(530)位于所述滑动架(200)的两端之间。
  7. 根据权利要求1所述的轮距可调的童车车架，其特征在于，
    所述主框架(100)设置有用于安装第一座位(910)的安装结构；
    和/或，
    所述滑动架(200)设置有用于安装第二座位(920)的安装位。
  8. 根据权利要求1所述的轮距可调的童车车架，其特征在于，
    所述主支撑杆组(110)的上端可活动设置有手推杆组(130)。
  9. 根据权利要求1或8所述的轮距可调的童车车架，其特征在于，
    所述主支撑杆组(110)包括两组分别分布在童车车架两侧的主支撑杆(111)，两组所述主支撑杆(111)分别连接至呈U型结构的手推杆组(130)。
  10. 根据权利要求9所述的轮距可调的童车车架，其特征在于，
    所述手推杆组(130)包括横杆(131)及两组分别可转动连接至所述横杆(131)两端的连接杆(132)，所述连接杆(132)与所述主支撑杆(111)可滑动连接。
  11. 根据权利要求1所述的轮距可调的童车车架，其特征在于，
    所述第一轮组(300)设置在所述侧支撑杆组(120)。
  12. 根据权利要求1或11所述的轮距可调的童车车架，其特征在于，
    所述侧支撑杆组(120)包括两组相对分布在童车车架两侧的侧支撑杆(121)，所述第二滑动件(520)可转动连接至所述侧支撑杆(121)的下端，所述侧 支撑杆(121)的上端可转动连接至所述第一滑动件(510)，所述侧支撑杆(121)的下端延伸设置有用于与所述第一轮组(300)连接的延伸段(121a)。
PCT/CN2023/113908 2022-08-19 2023-08-18 轮距可调的童车车架 WO2024037648A1 (zh)

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