CN208731063U - A kind of children trolley backrest stretching structure - Google Patents
A kind of children trolley backrest stretching structure Download PDFInfo
- Publication number
- CN208731063U CN208731063U CN201820972050.XU CN201820972050U CN208731063U CN 208731063 U CN208731063 U CN 208731063U CN 201820972050 U CN201820972050 U CN 201820972050U CN 208731063 U CN208731063 U CN 208731063U
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- China
- Prior art keywords
- support bar
- back support
- backrest
- rotatablely connected
- lower link
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Abstract
The utility model discloses a kind of children trolley backrest stretching structures, including left back support bar and right back support bar, left back support bar and left backrest upper connecting rod are rotatablely connected, left back support bar and left connector are rotatablely connected, left back support bar and left backrest lower link are rotatablely connected, right back support bar and right backrest upper connecting rod are rotatablely connected, right back support bar and right connector are rotatablely connected, right back support bar and right backrest lower link are rotatablely connected, left backrest upper connecting rod and right backrest lower link are rotatablely connected, the first stretching structure, pass through the integral telescopic of rotating member realization device, second of stretching structure, pass through the integral telescopic of sliding slot and spacer pin realization device, the third stretching structure, pass through the integral telescopic of sliding sleeve realization device, the utility model beneficial effect achieved is: three kinds of stretching structures of the utility model, it is compact-sized, it is easy to use, folding convenient, It is folded to occupy little space, it convenient for storage and carries, with good economic efficiency and social benefit, is suitable for promoting the use of.
Description
Technical field
The utility model relates to a kind of stretching structure, specially a kind of children trolley backrest stretching structure belongs to children and pushes away
Vehicle technical field.
Background technique
Cart currently on the market is divided into two major class, and one kind is stroller (being mainly made of iron pipe and cloth set), another
Class be children trolley (be mainly made of iron pipe and plastics, such as existing three-wheel children trolley, the applicant invent dynamic formula and
The perambulator of horizontal feeding type walking), stroller has been able to achieve folding because structure is simple at present；But existing children trolley is because of knot
Structure is complicated, can not also carry out effective and successful folding, cause vehicle body volume excessive, increase storage and transportation cost；In addition
The trouble that assembling is brought to dealer directly influences the sales volume of manufacturer, therefore in view of the above-mentioned problems, we have proposed a kind of youngsters
Virgin backrest of carriage for children stretching structure.
Utility model content
The utility model discloses a kind of children trolley backrest stretching structure, and can effectively solve to propose in background technique asks
Topic.
In order to solve the above-mentioned technical problem, the utility model discloses the following technical solutions:
A kind of children trolley backrest stretching structure of the utility model, including left back support bar and right back support bar, the left backrest
Bar and left backrest upper connecting rod are rotatablely connected, and the left back support bar and left connector are rotatablely connected, the left back support bar and left backrest
Lower link rotation connection, the right back support bar and right backrest upper connecting rod are rotatablely connected, and the right back support bar and right connector rotate
Connection, the right back support bar and right backrest lower link are rotatablely connected, and the left backrest upper connecting rod and the right backrest lower link turn
Dynamic connection, the right backrest upper connecting rod and the left backrest lower link are rotatablely connected, the left connector and the right connector
Rotation connection, the left connector and the right connector junction are rotatably equipped with left lengthening back support bar and right lengthening backrest
Bar,
As a kind of optimal technical scheme of the utility model, a kind of children trolley backrest stretching structure, the left backrest
Left connecting pin is installed on lower link, right connecting pin is installed on the right backrest lower link, is opened in the left lengthening back support bar
Equipped with left sliding slot, offer right rail in the right lengthening back support bar, the left backrest lower link by the left connecting pin and
The left sliding slot is slidably connected with the left lengthening back support bar, and the right backrest lower link passes through the right connecting pin and the right side
Sliding slot is slidably connected with the right lengthening back support bar.
As a kind of optimal technical scheme of the utility model, a kind of children trolley backrest stretching structure, the left lengthening
Embedding activity is nested with left sliding sleeve in back support bar, and activity is nested with right sliding sleeve in the right lengthening back support bar, connects under the left backrest
Bar and the left sliding sleeve are rotatablely connected, and the right backrest lower link and the right sliding sleeve are rotatablely connected, and the left lengthening backrest
Bar is rotatablely connected by the left sliding sleeve and the left backrest lower link, and the right lengthening back support bar passes through the right sliding sleeve and institute
State right backrest lower link rotation connection.
The utility model beneficial effect achieved is: the utility model is compact structure and easy to use, folding convenient, folding
Poststack occupies little space, and convenient for storage and carries, with good economic efficiency and social benefit, is suitable for promoting the use of.
Detailed description of the invention
Attached drawing is used to disclosure and further understands to the utility model, and constitutes part of specification, practical with this
Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.In the accompanying drawings:
Fig. 1 is a kind of the first stretching structure schematic diagram of children trolley backrest stretching structure of the utility model；
Fig. 2 is schematic diagram after a kind of the first stretching structure of children trolley backrest stretching structure of the utility model is stored；
Fig. 3 is a kind of second of stretching structure schematic diagram of children trolley backrest stretching structure of the utility model；
Fig. 4 is schematic diagram after a kind of second of stretching structure of children trolley backrest stretching structure of the utility model is stored；
Fig. 5 is a kind of the third stretching structure schematic diagram of children trolley backrest stretching structure of the utility model；
Fig. 6 is schematic diagram after a kind of the third stretching structure of children trolley backrest stretching structure of the utility model is stored.
In figure: 1, left back support bar；2, left backrest upper connecting rod；3, left backrest lower link；4, left connector；5, left sliding sleeve； 6,
Left lengthening back support bar；7, right lengthening back support bar；8, right backrest upper connecting rod；9, right backrest lower link；10, right connector；11, right
Back support bar；12, right sliding sleeve；A, left connecting pin；B, left sliding slot；C, right connecting pin；D, right rail.
Specific embodiment
It is illustrated below in conjunction with preferred embodiment of the attached drawing to the utility model, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
Embodiment 1: as shown in Figs. 1-2, a kind of flexible knot of the first of children trolley backrest stretching structure of the utility model
Structure, including left back support bar 1 and right back support bar 11, left back support bar 1 are rotatablely connected with left backrest upper connecting rod 2, left back support bar 1 and Zuo Lian
Fitting 4 is rotatablely connected, and left back support bar 1 is rotatablely connected with left backrest lower link 3, and right back support bar 11 is rotated with right backrest upper connecting rod 8
Connection, right back support bar 11 are rotatablely connected with right connector 10, and right back support bar 11 is rotatablely connected with right backrest lower link 9, left backrest
Upper connecting rod 2 and right backrest lower link 9 are rotatablely connected, and right backrest upper connecting rod 8 is rotatablely connected with left backrest lower link 3, left connector 4
It is rotatablely connected with right connector 10, left connector 4 is rotatably equipped with left lengthening back support bar 6 with right 10 junction of connector and the right side adds
Long back support bar 7.
Embodiment 2: as shown in Figure 3-4: a kind of flexible knot of second of children trolley backrest stretching structure of the utility model
Structure is equipped with left connecting pin A on left backrest lower link 3, right connecting pin C, Zuo Jiachang back support bar is equipped on right backrest lower link 9
Left sliding slot B is offered on 6, right rail D is offered in right lengthening back support bar 7, and left backrest lower link 3 passes through left connecting pin A and a left side
Sliding slot B is slidably connected with left lengthening back support bar 6, and right backrest lower link 9 passes through right connecting pin C and right rail D and right lengthening backrest
Bar 7 is slidably connected.
Embodiment 3: as seen in figs. 5-6: a kind of the third flexible knot of children trolley backrest stretching structure of the utility model
Structure, embedding activity is nested with left sliding sleeve 5 in Zuo Jiachang back support bar 6, and activity is nested with right sliding sleeve 12 in right lengthening back support bar 7, and a left side is leaned on
It carries on the back lower link 3 and left sliding sleeve 5 is rotatablely connected, right backrest lower link 9 is rotatablely connected with right sliding sleeve 12, and left lengthening back support bar 6 is logical
It crosses left sliding sleeve 5 to be rotatablely connected with left backrest lower link 3, right lengthening back support bar 7 passes through right sliding sleeve 12 and 9 turns of right backrest lower link
Dynamic connection.
Specifically, the first stretching structure, by the integral telescopic of sliding slot and spacer pin realization device, second of flexible knot
Structure passes through the integral telescopic of sliding sleeve realization device.The third stretching structure passes through the integral telescopic of sliding sleeve realization device, this reality
Be with novel beneficial effect achieved: the utility model is compact structure and easy to use, folding convenient, and folded occupancy is empty
Between it is small, convenient for storage and carry, with good economic efficiency and social benefit, be suitable for promote the use of.
Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic
It is equivalently replaced.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (3)
1. a kind of children trolley backrest stretching structure, including left back support bar (1) and right back support bar (11), which is characterized in that described
Left back support bar (1) and left backrest upper connecting rod (2) are rotatablely connected, and the left back support bar (1) and left connector (4) are rotatablely connected, institute
It states left back support bar (1) and left backrest lower link (3) is rotatablely connected, the right back support bar (11) and right backrest upper connecting rod (8) rotate
Connection, the right back support bar (11) and right connector (10) are rotatablely connected, the right back support bar (11) and right backrest lower link (9)
Rotation connection, the left backrest upper connecting rod (2) and the right backrest lower link (9) are rotatablely connected, the right backrest upper connecting rod (8)
It is rotatablely connected with the left backrest lower link (3), the left connector (4) and the right connector (10) are rotatablely connected, described
Left connector (4) and right connector (10) junction are rotatably equipped with left lengthening back support bar (6) and right lengthening back support bar
(7).
2. a kind of children trolley backrest stretching structure according to claim 1, installed on the left backrest lower link (3)
Have left connecting pin (A), be equipped with right connecting pin (C) on the right backrest lower link (9), is opened on the left lengthening back support bar (6)
It equipped with left sliding slot (B), is offered right rail (D) on the right lengthening back support bar (7), the left backrest lower link (3) passes through institute
It states left connecting pin (A) and the left sliding slot (B) to be slidably connected with the left lengthening back support bar (6), the right backrest lower link (9)
It is slidably connected by the right connecting pin (C) and the right rail (D) with the right lengthening back support bar (7).
3. a kind of children trolley backrest stretching structure according to claim 1, which is characterized in that the left lengthening backrest
Embedding activity is nested with left sliding sleeve (5) on bar (6), and activity is nested with right sliding sleeve (12), the left side on the right lengthening back support bar (7)
Backrest lower link (3) and the left sliding sleeve (5) are rotatablely connected, and the right backrest lower link (9) and the right sliding sleeve (12) rotate
Connection, and the left lengthening back support bar (6) is rotatablely connected by the left sliding sleeve (5) and the left backrest lower link (3), it is described
Right lengthening back support bar (7) is rotatablely connected by the right sliding sleeve (12) and the right backrest lower link (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820972050.XU CN208731063U (en) | 2018-06-23 | 2018-06-23 | A kind of children trolley backrest stretching structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820972050.XU CN208731063U (en) | 2018-06-23 | 2018-06-23 | A kind of children trolley backrest stretching structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208731063U true CN208731063U (en) | 2019-04-12 |
Family
ID=66025902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820972050.XU Active CN208731063U (en) | 2018-06-23 | 2018-06-23 | A kind of children trolley backrest stretching structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208731063U (en) |
-
2018
- 2018-06-23 CN CN201820972050.XU patent/CN208731063U/en active Active
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