CN112009552B - A child stroller - Google Patents
A child stroller Download PDFInfo
- Publication number
- CN112009552B CN112009552B CN202010823529.9A CN202010823529A CN112009552B CN 112009552 B CN112009552 B CN 112009552B CN 202010823529 A CN202010823529 A CN 202010823529A CN 112009552 B CN112009552 B CN 112009552B
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- China
- Prior art keywords
- rod
- frame
- pivot
- rotatably connected
- connecting rod
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Classifications
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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
- 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
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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
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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
- B62B9/10—Perambulator bodies; Equipment therefor
- B62B9/102—Perambulator bodies; Equipment therefor characterized by details of the seat
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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
- B62B9/10—Perambulator bodies; Equipment therefor
- B62B9/12—Perambulator bodies; Equipment therefor involving parts that are adjustable, attachable or detachable
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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
本发明公开了一种儿童推车，包括车架及高度可调的座位机构，所述座位机构包括：上杆，其用于构成座位或用于安装座位；底杆，其设置于所述车架上；第一连杆，其具有可转动地连接于所述上杆的上端部和可转动地连接于所述底杆的下端部；及第二连杆，其具有可转动地连接于所述上杆的上端部和可转动地连接于所述底杆的下端部，所述第二连杆位于所述第一连杆的后侧；其中，所述座位机构具有高档位状态和低档位状态，当所述座位机构在高档位状态时，所述上杆处于第一高度；当所述座位机构在低档位状态时，所述上杆处于第二高度；所述第一高度大于所述第二高度。该儿童推车能够以较简单的结构达到座位高度可以调节的目的。
The invention discloses a child stroller, comprising a frame and a height-adjustable seat mechanism, wherein the seat mechanism comprises: an upper rod, which is used to form a seat or to install a seat; a bottom rod, which is arranged on the frame; a first connecting rod, which has an upper end rotatably connected to the upper rod and a lower end rotatably connected to the bottom rod; and a second connecting rod, which has an upper end rotatably connected to the upper rod and a lower end rotatably connected to the bottom rod, and the second connecting rod is located at the rear side of the first connecting rod; wherein the seat mechanism has a high-gear state and a low-gear state, when the seat mechanism is in the high-gear state, the upper rod is at a first height; when the seat mechanism is in the low-gear state, the upper rod is at a second height; and the first height is greater than the second height. The child stroller can achieve the purpose of adjusting the seat height with a relatively simple structure.
Description
Technical Field
The invention relates to a child stroller.
Background
The prior art child cart comprises a cart frame with an unfolding position and a folding position, a frame locking mechanism for locking the cart frame in the unfolding position, a front wheel assembly, a rear wheel assembly and seats arranged on the cart frame, wherein the cart frame comprises seat supporting seats positioned at the left side and the right side, the seats comprise seat frames and mounting frames positioned at the left side and the right side of the seat frames, and the positions of the mounting frames mounted on the seat supporting seats are fixed. In an improved stroller, the seat height is adjustable to change the field of view of a child sitting in the stroller, as disclosed in chinese patent CN205469234U for a quick adjustment of the seat height. The existing adjustable child cart is basically complex in structure and high in cost.
Disclosure of Invention
In view of the foregoing, it is an object of the present invention to provide a stroller with a seat height adjustable and a relatively simple structure.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a child stroller comprising a frame and a height-adjustable seating mechanism, the seating mechanism comprising:
an upper pole for constituting a seat or for mounting a seat;
A bottom bar arranged on the frame;
a first link having an upper end rotatably connected to the upper link and a lower end rotatably connected to the bottom link, and
A second link having an upper end rotatably connected to the upper lever and a lower end rotatably connected to the bottom lever, the second link being located at a rear side of the first link;
The seat mechanism is provided with a high gear state and a low gear state, when the seat mechanism is in the high gear state, the upper rod is at a first height, when the seat mechanism is in the low gear state, the upper rod is at a second height, and the first height is larger than the second height.
Preferably, the upper surface of the upper bar and the upper surface of the bottom bar are at the same height when the seating mechanism is in the low gear state.
Preferably, the upper end of the first link is rotatably connected to the upper lever through a first pivot, the upper end of the second link is rotatably connected to the upper lever through a second pivot, the lower end of the second link is rotatably connected to the bottom lever through a third pivot, and the lower end of the first link is rotatably connected to the bottom lever through a fourth pivot.
More preferably, the sum of the distances between the first pivot and the second pivot and the distances between the first pivot and the fourth pivot is equal to the sum of the distances between the third pivot and the second pivot and the distances between the third pivot and the fourth pivot.
Further, the axes of the first pivot, the second pivot, the third pivot and the fourth pivot are parallel to each other.
Preferably, the bottom bar is provided with at least two connecting parts connected with the frame, and the two connecting parts are respectively connected with different positions of the frame.
Preferably, the frame has an unfolded state and a folded state, and the seat mechanism has an unfolded state corresponding to the unfolded state of the frame and a folded state corresponding to the folded state of the frame, and when the frame is converted from the unfolded state to the folded state, the seat mechanism is simultaneously converted from the unfolded state to the folded state along with the conversion of the frame.
Preferably, the frame comprises a left side frame and a right side frame, and the bottom rods are arranged on the left side frame and the right side frame.
More preferably, the left side frame and the right side frame each include a push rod, a front wheel support, a rear wheel support, a third connecting rod, a fourth connecting rod and a sliding member slidably disposed on the push rod, an upper end portion of the front wheel support and an upper end portion of the rear wheel support are rotatably connected to the sliding member, a lower end portion of the push rod and a front end portion of the third connecting rod are fixedly connected or integrally formed, a rear end portion of the third connecting rod is rotatably connected to a front end portion of the fourth connecting rod, the fourth connecting rod is rotatably connected to the rear wheel support, a front portion of the bottom rod is disposed on the front wheel support, and a rear portion of the bottom rod is disposed on the push rod and/or the third connecting rod.
Further, the left side frame and the right side frame each further comprise a fifth connecting rod, one end of the fifth connecting rod is rotatably connected to the front wheel bracket, the other end of the fifth connecting rod is rotatably connected to the front end of the bottom rod, and the rear end of the bottom rod is rotatably connected to the lower end of the push rod and/or the front end of the third connecting rod.
Further, the rear end of the bottom bar is rotatably connected to the lower end of the push bar, so that a deformable four-bar mechanism is formed among the bottom bar, the push bar, the front wheel and the fifth bar.
Preferably, the stroller comprises a locking mechanism for locking the four-bar linkage.
More preferably, the locking mechanism includes a locking pin provided on an upper end portion of the upper lever or the second link, and the slider is provided with a locking hole that mates with the locking pin, and the locking pin is inserted into the locking hole when the seat mechanism is in the high gear state.
By combining the above technical scheme, the invention has the following advantages compared with the prior art:
in the child stroller, the upper rod, the bottom rod, the first connecting rod and the second connecting rod are rotationally connected to form the four-bar mechanism, and the height of the upper rod is changed along with the deformation of the four-bar mechanism, so that the aim of adjusting the height of a seat or a seat pocket on the upper rod can be fulfilled with a simpler structure.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a stroller with a seat in a high gear position according to an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a side view of the stroller of FIG. 1;
FIG. 4 is a schematic perspective view of a child stroller with a seat in a low gear position according to an embodiment of the present invention;
FIG. 5 is a partial enlarged view at B in FIG. 4;
fig. 6 is a side view of the stroller of fig. 4.
Wherein,
1. The bicycle comprises a frame, a left side frame, a right side frame, a push rod, a 110, a sliding sleeve, a 12, a front wheel bracket, a 13, a rear wheel bracket, a 14, a third connecting rod, a 15, a fourth connecting rod, a 16 and a fifth connecting rod, wherein the left side frame and the right side frame are respectively connected with the frame;
2.a front wheel;
3. a rear wheel;
4. Seat mechanism 41, upper rod 42, bottom rod 420, main body section 421, front end 422, rear end 43, first connecting rod 44, second connecting rod 45, seat pocket;
5. Locking mechanism, 51, locking pin.
Detailed Description
Preferred embodiments of the present invention will be described in detail below with reference to the attached drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art.
The terms "upper", "lower", "front", "rear" and the like are defined herein in terms of their usual viewing angles for a child stroller in an unfolded state by a person skilled in the art.
Referring to fig. 1 to 6, the present embodiment provides a stroller, and in particular, a stroller with an adjustable seat height. Referring to fig. 1 and 4, the stroller comprises a frame 1, front wheels 2, rear wheels 3 and a height-adjustable seating mechanism 4. The front wheel 2 is provided at the bottom front part of the frame 1, the rear wheel 3 is provided at the bottom rear part of the frame 1, and the seat mechanism 4 is provided on the frame 1.
As shown in fig. 2 and 5, the seat mechanism 4 specifically includes an upper lever 41, a bottom lever 42, a first link 43, and a second link 44. The first link 43 has an upper end rotatably connected to the upper lever 41 and a lower end rotatably connected to the bottom lever 42, and the second link 44 is located at a rear side of the first link 43. The upper bar 41, the second link 44, the bottom bar 42, and the first link 43 constitute a four-bar linkage, which is referred to as a first four-bar linkage. Wherein the bottom bar 42 is arranged on the frame 1 and has two connecting parts respectively connected to different positions of the frame 1. The upper bar 41 extends in a generally fore-and-aft direction, and the upper bar 41 may be directly used as a seat bar constituting a seat, or the upper bar 41 may be mounted with a seat (such as a seat pocket 45 shown in fig. 1 and 4). As the four bar linkage is deformed, the height of the upper bar 41 changes. Thus, the seat mechanism 4 has a high gear state as shown in fig. 1 and 3 and a low gear state as shown in fig. 4 and 6. The upper bar 41 is at a first height when the seating mechanism 4 is in the high range state and the upper bar 41 is at a second height when the seating mechanism 4 is in the low range state. Wherein the first height is greater than the second height. Thereby, the height of the seat pocket 45 mounted on the upper pole 41 is adjusted.
Specifically, the bottom rail 42 is mainly composed of a front extension 421, a main body 420, and a rear extension 422. The main body section 420 extends in the front-rear direction, the front extension 421 extends downward and forward from the front end of the main body section 420, and the rear extension 422 extends downward and rearward from the rear end of the main body section 420. The upper end of the first link 43 is rotatably coupled to the front end of the upper lever 41 through a first pivot a, the upper end of the second link 44 is rotatably coupled to the rear end of the upper lever 41 through a second pivot b, the lower end of the second link 44 is rotatably coupled to the rear end of the main body section 420 through a third pivot c, and the lower end of the first link 43 is rotatably coupled to the front end of the main body section 420 through a fourth pivot d. The axes of the first pivot a, the second pivot b, the third pivot c and the fourth pivot d are parallel to each other and horizontally extend along the left-right direction of the stroller. The front extension 421 and the rear extension 422 of the bottom rail 42 are the two connecting parts described above, which are respectively connected to two different positions of the frame 1.
The sum of the pitches of the first and second pivots a and b and the pitches of the first and fourth pivots a and d is equal to the sum of the pitches of the third and second pivots c and d, that is, the pitch of the pivots ab+the pitch of the pivots ad=the pitch of the pivots cb+the pitch of the pivots cd. More preferably, the length of the first link 43 is equal to the length of the second link 44, and the four-bar mechanism is a parallelogram. As shown in fig. 5, when the seat mechanism 4 is in the low range state, the upper lever 41 and the second link 44 overlap, the main body section 420 of the bottom lever 42 and the first link 43 overlap, and the upper surface of the upper lever 41 and the upper surface of the bottom lever 42 are at the same height. The main body section 420 of the bottom bar 42 also has a slot for the first link 43, and when the four bar mechanism is deformed by downward contraction, the upper bar 41 and the second link 44 overlap, and the seat mechanism 4 is in a low gear state, until the first link 43 enters the slot in the bottom bar 42.
The frame 1 is foldable to have an unfolded state and a folded state, the seat mechanism 4 being foldable with the frame 1, and the bottom bar 42 being further foldable with the frame 1 and connected to the frame 1. For example, the frame 1 includes a plurality of rods movably connected to be able to be relatively unfolded and folded, and another four-bar linkage, denoted as a second four-bar linkage, is formed between the bottom rod 42 and a part of the rods of the frame 1. The present embodiment provides a specific example of the vehicle frame 1. The frame 1 specifically includes a left side frame 1a and a right side frame 1b, and the left side frame 1a and the right side frame 1b are connected by a connecting rod. The left side frame 1a and the right side frame 1b are foldable to have an unfolded state and a folded state, and each of the side frames includes a push rod 11, a front wheel bracket 12, a rear wheel bracket 13, a third link 14, and a fourth link 15. As shown in fig. 3 and 6, in the left side frame 1a or the right side frame 1b, a slider is provided on the push rod 11, specifically, a slide bush 110 slidably provided on the push rod 11, an upper end portion of the front wheel bracket 12 and an upper end portion of the rear wheel bracket 13 are rotatably connected to the slide bush 110, respectively, the push rod 11 and the third link 14 are integrally formed, the third link 14 extends in a substantially forward-backward direction, a lower end portion of the push rod 11 is connected to a front end portion of the third link 14, a rear end portion of the third link 14 is rotatably connected to an upper end portion of the fourth link 15, and the fourth link 15 is rotatably connected to the rear wheel bracket 13. The front wheel 2 is provided at the lower end of the front wheel bracket 12, and the rear wheel 3 is provided at the lower end of the rear wheel bracket 13.
The left side frame 1a is provided with the first four-bar linkage mechanism, the right side frame 1b is also provided with the first four-bar linkage mechanism, and the bottom end of the seat pocket 45 is inserted into the upper rods 41 of the first four-bar linkage mechanisms at the two sides. The bottom rods 42 of the first four-bar linkage on both sides are respectively arranged on the front wheel bracket 12 and the push rod 11 and/or the third connecting rod 14 on the corresponding side. Further, the bottom bar 42 and the bars of the side frames on the corresponding sides form a second four-bar linkage to enable the seat mechanism 4 to fold with the frame 1 without affecting the folding of the side frame 1. As shown in fig. 2, the left side frame 1a and the right side frame 1b each further include a fifth link 16, one end portion of the fifth link 16 is rotatably connected to the front wheel bracket 12, the other end portion of the fifth link 16 is rotatably connected to the front end portion of the bottom rod 42, and the rear end portion of the bottom rod 42 is rotatably connected to the lower end portion of the push rod 11 and/or the front end portion of the third link 14. The rear end portion of the bottom rod 42 is specifically rotatably connected to the lower end portion of the push rod 11, and the bottom rod 42, the push rod 11, the front wheel bracket 12 and the fifth link 16 constitute the second four-bar linkage described above, which is deformable when the frame 1 is folded, so that the bottom rod 42 of the seat mechanism 4 can be folded along with the frame 1.
The stroller comprises a locking mechanism 5 for locking the seat mechanism 4. The locking mechanism 5 may be provided between the bars of the seat mechanism 4 or between the bars of the seat mechanism 4 and the frame 1. In a specific example, the locking mechanism 5 includes a locking pin 51 provided on an upper end portion of the second link 44, and a locking hole (not shown) that mates with the locking pin 51 is provided on the slide bush 110, and when the seat mechanism 4 is in the high gear state, the locking pin 51 is inserted into the locking hole to lock the seat mechanism 4.
The seat height adjustment process of the stroller is described as unlocking the first four-bar linkage of the seat mechanism 4 (disengaging the locking pin 51 from the locking hole on the sliding sleeve 110) and collapsing the first four-bar linkage rearward and downward until the upper bar 41 reaches a position substantially flush with the main body section 420 of the bottom bar 42, and the seat mechanism 4 is shifted from the top gear state to the low gear state. Conversely, the first four-bar linkage is deformed upward, the upper lever 41 is moved upward, and the lock pin 51 of the second link 44 is inserted into the lock hole of the slide bush 110, so that the seat mechanism 4 is stably in the high gear state.
The above examples are only for illustrating the technical concept and features of the present invention, and are intended to be preferred embodiments, and those skilled in the art can understand the content of the present invention and implement the same, and thus are not intended to limit the scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of the present invention.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010823529.9A CN112009552B (en) | 2020-08-17 | 2020-08-17 | A child stroller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010823529.9A CN112009552B (en) | 2020-08-17 | 2020-08-17 | A child stroller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112009552A CN112009552A (en) | 2020-12-01 |
| CN112009552B true CN112009552B (en) | 2024-12-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010823529.9A Active CN112009552B (en) | 2020-08-17 | 2020-08-17 | A child stroller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112009552B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113753115B (en) * | 2020-01-22 | 2023-01-31 | 好孩子儿童用品有限公司 | Children's barrow |
| CN116176681B (en) * | 2023-03-02 | 2024-11-29 | 好孩子儿童用品有限公司 | Strollers |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212637623U (en) * | 2020-08-17 | 2021-03-02 | 好孩子儿童用品有限公司 | a children's stroller |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE602007003585D1 (en) * | 2006-05-10 | 2010-01-14 | Graco Childrens Prod Inc | FOLDABLE AND HEIGHT-ADJUSTABLE KINDERWAGEN |
| CN101348125B (en) * | 2008-08-21 | 2010-12-29 | 好孩子儿童用品有限公司 | Baby carriage |
| WO2011057582A1 (en) * | 2009-11-13 | 2011-05-19 | 好孩子儿童用品有限公司 | Bi-directional foldable stroller |
| CN202518294U (en) * | 2012-02-01 | 2012-11-07 | 好孩子儿童用品有限公司 | Infant stroller |
| CN204236641U (en) * | 2014-10-28 | 2015-04-01 | 好孩子儿童用品有限公司 | A kind of children electric vehicle seats and comprise the children's electric motor vehicle of this seat |
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2020
- 2020-08-17 CN CN202010823529.9A patent/CN112009552B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN212637623U (en) * | 2020-08-17 | 2021-03-02 | 好孩子儿童用品有限公司 | a children's stroller |
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| CN112009552A (en) | 2020-12-01 |
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