CN201021302Y - Carriage for children with adjustable backrest - Google Patents
Carriage for children with adjustable backrest Download PDFInfo
- Publication number
- CN201021302Y CN201021302Y CNU2007200349643U CN200720034964U CN201021302Y CN 201021302 Y CN201021302 Y CN 201021302Y CN U2007200349643 U CNU2007200349643 U CN U2007200349643U CN 200720034964 U CN200720034964 U CN 200720034964U CN 201021302 Y CN201021302 Y CN 201021302Y
- Authority
- CN
- China
- Prior art keywords
- backrest
- lock dog
- side lever
- wheel support
- adjustment bar
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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- Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
Abstract
The utility model relates to a stroller, the angle of the backrest of the stroller is adjustable; the stroller comprises a frame body, a front wheel arranged in front of the lower part of the frame body, a back wheel arranged at back of the lower part of the frame body; the frame body comprises a front-wheel bracket, a rear-wheel bracket, a seat frame arranged between the front-wheel bracket and the rear-wheel bracket; a backrest frame which rotates to connect the seat frame at the lower terminal; the front-wheel bracket or the rear-wheel bracket can rotate to connect the terminal of the adjusting pole of the backrest; a plurality of limit grooves is arranged on the adjusting pole of the backrest in the direction of the length of the adjusting pole of the backrest; the side pole of the backrest of the backrest frame is provided with a lock block which has a first working position and a second working position; the first working position is that the lock block is positioned in the limit groove; while the second working position is that the lock block separates from the limit groove; when the lock block is positioned in different limit grooves, the different positions of the angle of the backrest frame, corresponding to the seat frame, can be achieved, thereby realizing the adjusting of the multi-positions of angle of the seat frame. The utility model is simple in structure and convenient in operation.
Description
Technical field
The utility model relates to the adjustable children trolley of a kind of backrest angle.
Background technology
The adjustable children trolley of backrest angle of the prior art, comprise the vehicle frame body, be arranged on the front-wheel of the lower front of vehicle frame body, be arranged on the trailing wheel of vehicle frame rear body below, the vehicle frame body comprises the front-wheel support that is used to settle front-wheel, be used to settle the rear wheel support of trailing wheel, be arranged on the seat frame between front-wheel support and the rear wheel support, bottom and the seat frame bonded assembly back rest that rotates, the pushing hands bar that the bottom is connected with the front-wheel support upper end, the adjustable perambulator of existing backrest angle, shown in Chinese invention patent 99116937.9, between pushing hands bar and back rest, be provided with the back rest apparatus for adjusting position, the rear portion of back rest is connected with an end of second pipe link rotationally, be connected with an end of head rod on the pushing hands bar rotationally, and the other end of head rod rotates with the other end of second pipe link and is connected, back rest has and carries on and put down two angle positions when regulating second pipe link, but in actual use, this back rest has only the structure of two kinds of angle positions can not satisfy user's actual needs.
Summary of the invention
The utility model purpose is to provide a kind of back rest can carry out the children trolley that a plurality of angle positions are regulated in order to overcome the deficiencies in the prior art.
For achieving the above object, the technical solution adopted in the utility model is: the adjustable children trolley of a kind of backrest angle, comprise the vehicle frame body, be arranged on the front-wheel of the front lower place of described vehicle frame body, be arranged on the trailing wheel of the described vehicle frame body back lower place, described vehicle frame body comprises the front-wheel support that is used to settle front-wheel, be used to settle the rear wheel support of trailing wheel, be arranged on the seat frame between described front-wheel support and the described rear wheel support, bottom and the described seat frame bonded assembly back rest that rotates, be positioned on the part front-wheel support of seat frame top or the rear wheel support by the rotating end that is connected with the backrest adjustment bar of first rotating shaft, its length direction of described backrest adjustment bar upper edge has a plurality of position-limited troughs, described back rest comprises the backrest side lever that is positioned at both sides, described backrest side lever is provided with lock dog, described position-limited trough is used to limit the position of described lock dog with respect to the backrest adjustment bar, described lock dog has first control position and second control position, first control position is that described lock dog is positioned at described position-limited trough, and second control position is that described lock dog breaks away from described position-limited trough.
One end of described backrest adjustment bar rotates with described rear wheel support and is connected.
Described back rest is provided with and is used to promote described backrest adjustment bar makes that described lock dog is changed between first control position and second control position regulating mechanism, described regulating mechanism comprises that being arranged on described backrest side lever upper edge backrest side lever regulates drive block in axial sliding, and the upper end of the other end of described backrest adjustment bar and described adjusting drive block is inconsistent.
The described backrest side lever in wall upper edge of described two backrest side levers axially offer slide opening respectively, be fixedly connected with sliding pin on the described adjusting drive block, described sliding pin passes described slide opening and is connected slidably on the described backrest side lever.
Described regulating mechanism also comprises the trailing cable in the inner chamber that is arranged on described backrest side lever, and the bottom of described trailing cable is connected with described sliding pin.
Described back rest is provided with the draw operations part, and the upper end of described trailing cable is connected with described draw operations part.
Described backrest side lever inner chamber also is provided with elastic component, and described elastic component one end is connected with described lock dog and the other end is connected with described sliding pin.
Have guide groove on its length direction of described backrest adjustment bar upper edge, described each position-limited trough is connected with described guide groove.
Be arranged with torsion spring in described first rotating shaft, described torsion spring one end is connected with described rear wheel support and the other end is connected with described backrest adjustment bar.
Described lock dog is fixedly installed on the described backrest side lever.
Because technique scheme utilization, the utility model compared with prior art has following advantage: owing to be positioned at an end that is connected with the backrest adjustment bar on part front-wheel support above the seat frame or the rear wheel support by first rotating shaft rotationally, and its length direction has a plurality of position-limited troughs in backrest adjustment bar upper edge, the backrest side lever of back rest both sides is provided with lock dog, described position-limited trough is used to limit the position of described lock dog with respect to the backrest adjustment bar, when lock dog is positioned at different position-limited troughs, just can realize the different angle position of the relative seat frame of back rest, thereby realize the adjusting of a plurality of angle positions of back rest, structure is simpler and easy to operate.
Description of drawings
Accompanying drawing 1 is the three-dimensional structure diagram of the utility model children trolley;
Accompanying drawing 2 is the left view of the utility model children trolley (back rest is in the sitting posture position);
Accompanying drawing 3 is the left view (back rest is between between sitting posture and half lying posture) of the utility model children trolley;
Accompanying drawing 4 is the left view of the utility model children trolley (back rest is in the half lying posture position);
Accompanying drawing 5 is that the utility model back rest and backrest adjustment bar annexation are amplified the back cutaway view;
Accompanying drawing 6 is that annexation is amplified the trailing portion cutaway view between the utility model back rest, backrest adjustment bar and the seat frame;
Wherein: 1, vehicle frame body; 2, front-wheel; 3, trailing wheel; 4, rear wheel support; 5, front-wheel support; 6, pushing hands bar; 7, backrest side lever; 8, back rest; 9, seat frame; 10, backrest adjustment bar; 11, draw operations part; 12, backrest support rods; 13, regulate drive block; 14, guide groove; 15, position-limited trough; 16, trailing cable; 17, lock dog; 18, elastic component; 19, torsion spring; 22, first rotating shaft; 23, slide opening; 24, sliding pin.
The specific embodiment
Below in conjunction with accompanying drawing particular content of the present utility model is described in detail:
As accompanying drawing 1 to the children trolley shown in the accompanying drawing 4, this go-cart is a umbrella handle vehicle, comprise vehicle frame body 1, be arranged on a pair of front-wheel 2 of vehicle frame body 1 front lower place, be arranged on the pair of rear wheels 3 of the vehicle frame body back lower place, described vehicle frame body 1 comprises and is positioned at the front-wheel support 5 that both sides and bottom are connected with described front-wheel 2 respectively, be positioned at the rear wheel support 4 that both sides and bottom are connected with described trailing wheel 3 respectively, be positioned at the pushing hands bar 6 that both sides and bottom are connected with the upper end of the front-wheel support 5 of both sides respectively, the upper end of rear wheel support 4 is connected with the upper end of pushing hands bar 6 respectively, and described vehicle frame body 1 also comprises the seat frame 9 that is arranged between front-wheel support 5 and the rear wheel support 4, bottom and the described seat frame 9 bonded assembly back rest 8 that rotates.
Wherein back rest 8 comprises the backrest support rods 12 that the backrest side lever 7 that is positioned at both sides, mutual setting across and upper and lower end parts are connected with the backrest side lever 7 of both sides.
In this specific embodiment, on the rear wheel support 4 of seat frame 9 upper sections, be provided with an end of backrest adjustment bar 10 rotationally by first rotating shaft 22, one end of backrest adjustment bar 10 also can rotate with front-wheel support 5 and be connected, and no longer this kind structure is elaborated at this.
Its length direction has a plurality of position-limited troughs 15 in backrest adjustment bar 10 upper edges, in this specific embodiment, on the length direction of backrest adjustment bar 10, offer three position-limited troughs 15, and along having guide groove 14 on its length direction, described each position-limited trough 15 is connected with described guide groove 14.
On backrest side lever 7, be fixedly connected with lock dog 17, described lock dog 17 has first control position and second control position, first control position is that described lock dog 17 is positioned at described position-limited trough 15, second control position is that described lock dog 17 breaks away from described position-limited trough 15, thereby realizes that by the conversion of lock dog 17 between first control position and second control position lock dog 17 is arranged on the purpose that reaches the backrest angle adjusting in the different position-limited trough 15 with this.
Shown in accompanying drawing 5 and accompanying drawing 6, be used to promote described backrest adjustment bar 10 makes that described lock dog 17 is changed between first control position and second control position regulating mechanism also being provided with on the described back rest 8, this regulating mechanism comprises that being arranged on described backrest side lever 7 upper edge backrest side levers 7 regulates drive block 13 in axial sliding, axially offer slide opening 23 respectively at the described backrest side lever 7 in the wall upper edge of described two backrest side levers 7, be fixedly connected with sliding pin 24 on the described adjusting drive block 13, described sliding pin 24 passes described slide opening 23 and is connected slidably on the described backrest side lever 7, thereby make described adjusting drive block 13 in slide opening 23, to slide, and the other end of backrest adjustment bar 10 and this upper end of regulating drive block 13 are inconsistent, make that upwards promoting to regulate drive block 13 can make lock dog 17 switch between first control position and second control position.
Described regulating mechanism also comprises the trailing cable 16 in the inner chamber that is arranged on described backrest side lever 7, the bottom of described trailing cable 16 is connected with described sliding pin 24, simultaneously on described back rest 8, also be provided with draw operations part 11, the upper end of described trailing cable 16 is connected with described draw operations part 11, like this when needs are to the backrest angle position adjustments, only need pulling draw operations part 11, thereby upwards being spurred, trailing cable 16 makes that the sliding pin 24 that is fixed on trailing cable 16 bottoms is upwards mentioned, sliding pin 24 will drive adjusting drive block 13 upward movements of captiveing joint with it, make that lock dog 17 breaks away from and lock dog 17 is arranged in guide groove 14 from one of them position-limited trough 15, when lock dog 17 when guide groove 14 slides into the position relative with another position-limited trough 15, unclamp 11 feasible adjusting drive block 13 landings downwards under the effect of gravity of draw operations part, thereby lock dog 17 enters in the position-limited trough 15 on the other side.
Simultaneously also be provided with elastic component 18 at described backrest side lever 7 inner chambers, described elastic component 18 1 ends are connected with described lock dog 17 and the other end is connected with described sliding pin 24, described elastic component 17 is a spring, when being pulled up, trailing cable 16 make elastic component 18 be elongated, after discharging trailing cable 16,, elastic component 18 regulates drive block 13 rapid landings thereby recovering rapidly to make.
And also be arranged with torsion spring 19 in described first rotating shaft 22, described torsion spring 19 1 ends are connected with described rear wheel support 4 and the other end is connected with described backrest adjustment bar 10, and torsion spring 19 plays the trend that the described lock dog 17 of guiding slides in guide groove 14.
Concrete operations are as follows: when the state position that the backrest angle position need be adjusted to from the state position shown in the accompanying drawing 2 shown in the accompanying drawing 4, pulling draw operations part 11 makes that regulating drive block 13 upwards promotes backrest adjustment bar 10, lock dog 17 will enter in the guide groove 14 from the position-limited trough 15 at accompanying drawing 2 places, elastic component 18 stressed elongations this moment, and the also stressed control lock dog 17 of torsion spring 19 slides in guide groove 14, when sliding into the relative position at position-limited trough 15 places shown in the accompanying drawing 4, decontrol draw operations part 11, thereby elastic component 18 obtains discharging and makes adjusting drive block 13 downward landings and then lock dog enter in the position-limited trough 15 shown in the accompanying drawing 4, thereby realize the angular transition of state position shown in 4 from the state position shown in the accompanying drawing 2 to accompanying drawing, backrest angle position, same mode can realize the adjusting of position of back different angles position.
Claims (10)
1. adjustable children trolley of backrest angle, comprise vehicle frame body (1), be arranged on the front-wheel (2) of the front lower place of described vehicle frame body (1), be arranged on the trailing wheel (3) of described vehicle frame body (1) back lower place, described vehicle frame body (1) comprises the front-wheel support (5) that is used to settle front-wheel (2), be used to settle the rear wheel support (4) of trailing wheel (3), be arranged on the seat frame (9) between described front-wheel support (5) and the described rear wheel support (4), bottom and described seat frame (9) the bonded assembly back rest (8) that rotates, it is characterized in that: the part front-wheel support (5) or the rear wheel support (4) that are positioned at seat frame (9) top are gone up an end that is connected with backrest adjustment bar (10) by first rotating shaft (22) rotationally, its length direction of described backrest adjustment bar (10) upper edge has a plurality of position-limited troughs (15), described back rest (8) comprises the backrest side lever (7) that is positioned at both sides, described backrest side lever (7) is provided with lock dog (17), described position-limited trough (15) is used to limit the position of described lock dog (17) with respect to backrest adjustment bar (10), described lock dog (17) has first control position and second control position, first control position is that described lock dog (17) is positioned at described position-limited trough (15), and second control position is that described lock dog (17) breaks away from described position-limited trough (15).
2. the adjustable children trolley of backrest angle according to claim 1 is characterized in that: an end of described backrest adjustment bar (10) rotates with described rear wheel support (4) and is connected.
3. the adjustable children trolley of backrest angle according to claim 1, it is characterized in that: described back rest (8) is provided with and is used to promote described backrest adjustment bar (10) makes that described lock dog (17) is changed between first control position and second control position regulating mechanism, described regulating mechanism comprises that being arranged on described backrest side lever (7) upper edge backrest side lever (7) regulates drive block (13) in axial sliding, and the upper end of the other end of described backrest adjustment bar (10) and described adjusting drive block (13) is inconsistent.
4. the adjustable children trolley of backrest angle according to claim 3, it is characterized in that: the described backrest side lever in the wall upper edge of described two backrest side levers (7) (7) axially offer slide opening (23) respectively, be fixedly connected with sliding pin (24) on the described adjusting drive block (13), described sliding pin (24) passes described slide opening (23) and is connected slidably on the described backrest side lever (7).
5. the adjustable children trolley of backrest angle according to claim 4, it is characterized in that: described regulating mechanism also comprises the trailing cable (16) in the inner chamber that is arranged on described backrest side lever (7), and the bottom of described trailing cable (16) is connected with described sliding pin (24).
6. the adjustable children trolley of backrest angle according to claim 5 is characterized in that: described back rest (8) is provided with draw operations part (11), and the upper end of described trailing cable (16) is connected with described draw operations part (11).
7. the adjustable children trolley of backrest angle according to claim 5, it is characterized in that: described backrest side lever (7) inner chamber also is provided with elastic component (18), and described elastic component (18) one ends are connected with described lock dog (17) and the other end is connected with described sliding pin (24).
8. the adjustable children trolley of backrest angle according to claim 1 is characterized in that: have guide groove (14) on its length direction of described backrest adjustment bar (10) upper edge, described each position-limited trough (15) is connected with described guide groove (14).
9. the adjustable children trolley of backrest angle according to claim 8, it is characterized in that: be arranged with torsion spring (19) in described first rotating shaft (22), described torsion spring (19) one ends are connected with described rear wheel support (4) and the other end is connected with described backrest adjustment bar (10).
10. the adjustable children trolley of backrest angle according to claim 1 is characterized in that: described lock dog (17) is fixedly installed on the described backrest side lever (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200349643U CN201021302Y (en) | 2007-02-28 | 2007-02-28 | Carriage for children with adjustable backrest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200349643U CN201021302Y (en) | 2007-02-28 | 2007-02-28 | Carriage for children with adjustable backrest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201021302Y true CN201021302Y (en) | 2008-02-13 |
Family
ID=39088715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200349643U Expired - Fee Related CN201021302Y (en) | 2007-02-28 | 2007-02-28 | Carriage for children with adjustable backrest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201021302Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101734273B (en) * | 2008-11-07 | 2011-12-07 | 宝钜(中国)儿童用品有限公司 | Baby carriage and backrest tilt adjusting device thereof |
-
2007
- 2007-02-28 CN CNU2007200349643U patent/CN201021302Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101734273B (en) * | 2008-11-07 | 2011-12-07 | 宝钜(中国)儿童用品有限公司 | Baby carriage and backrest tilt adjusting device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080213 Termination date: 20160228 |