CN213921189U - Foldable cart frame and foldable cart - Google Patents
Foldable cart frame and foldable cart Download PDFInfo
- Publication number
- CN213921189U CN213921189U CN202022833951.0U CN202022833951U CN213921189U CN 213921189 U CN213921189 U CN 213921189U CN 202022833951 U CN202022833951 U CN 202022833951U CN 213921189 U CN213921189 U CN 213921189U
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- seat post
- wheel bracket
- connecting rod
- rotatably connected
- push handle
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Abstract
The utility model discloses a collapsible shallow frame and collapsible shallow relates to shallow technical field. This collapsible shallow frame includes: a front wheel bracket; the rear wheel bracket is rotationally connected with the front wheel bracket; the side handrail is rotatably connected to the upper end of the rear wheel bracket; the push handle is rotatably connected to the upper end of the side handrail; one end of the rear support connecting rod is rotationally connected with the push handle, and the other end of the rear support connecting rod is rotationally connected with the rear wheel bracket; one end of the front support connecting rod is rotationally connected with the front wheel bracket, and the other end of the front support connecting rod is rotationally connected with the rear support connecting rod; the seat rod is arranged in front of the rear support connecting rod and is rotationally connected with the rear support connecting rod; the seat post supporting rod is arranged below the seat post, one end of the seat post supporting rod is rotatably connected with the front wheel support, and the other end of the seat post supporting rod is connected with the seat post in a sliding mode along the length direction of the seat post. The foldable cart frame is simple in structure and convenient to fold.
Description
Technical Field
The utility model relates to a shallow technical field especially relates to a collapsible shallow frame and collapsible shallow.
Background
A cart is a tool that is common in daily life, such as a cart for shopping, or a cart for an infant to sit on, and the like. These carts are typically provided to be collapsible for ease of carrying or storage. When the foldable trolley is used, the whole trolley can be folded through the frame of the foldable trolley, so that the occupied space of the trolley is reduced.
At present, the structure that can carry out folding shallow frame has a lot of, but their structure is comparatively complicated usually, folds very inconveniently, experiences when leading to the user to use not good, is unfavorable for marketing.
In view of the above, there is a need for a foldable stroller frame and a foldable stroller to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a collapsible shallow frame and collapsible shallow, simple structure, it is folding convenient.
To achieve the purpose, the utility model adopts the following technical proposal:
a foldable stroller frame comprising:
a front wheel bracket;
the rear wheel bracket is rotationally connected with the front wheel bracket;
the side handrail is rotatably connected to the upper end of the rear wheel bracket;
the push handle is rotatably connected to the upper end of the side handrail;
one end of the rear support connecting rod is rotatably connected with the push handle, and the other end of the rear support connecting rod is rotatably connected with the rear wheel bracket;
one end of the front support connecting rod is rotatably connected with the front wheel bracket, and the other end of the front support connecting rod is rotatably connected with the rear support connecting rod;
the seat rod is arranged in front of the rear support connecting rod and is in rotary connection with the rear support connecting rod;
the seat post supporting rod is arranged below the seat post, one end of the seat post supporting rod is rotatably connected with the front wheel support, and the other end of the seat post supporting rod is connected with the seat post in a sliding mode along the length direction of the seat post.
Optionally, the front wheel bracket, the rear wheel bracket and the side arm rest are coaxially and rotatably connected.
Optionally, the seat post support rod and the rear wheel bracket are connected to the front wheel bracket in a non-coaxial manner.
Optionally, the seat post support bar is an L-shaped bar.
Optionally, the seat post and a middle portion of the rear support link are rotatably connected.
Optionally, the push handle includes a body portion and an extension portion formed by extending a lower end of the body portion, the lower end of the body portion is rotatably connected to an upper end of the side armrest, and an end of the extension portion, which is not connected to the body portion, is rotatably connected to the rear support link.
Optionally, the rear support link includes a first link section and a second link section formed by extending a lower end of the first link section, two ends of the first link section are respectively rotatably connected to the push handle and the rear wheel bracket, and an end of the second link section, which is not connected to the first link section, is rotatably connected to the front support link.
Optionally, a locking mechanism is provided between the side rail and the push handle, the locking mechanism being configured to lock the foldable stroller frame in the unfolded state.
Optionally, a push handle unlocking piece is arranged on the push handle and used for unlocking the locking mechanism.
The utility model also provides a collapsible shallow, it includes as above collapsible shallow frame.
The utility model has the advantages that:
the utility model provides a foldable cart frame and a foldable cart, when the foldable cart is folded, a push handle is pushed to enable a handrail at the opposite side of the push handle to rotate relatively, so that the push handle and the handrail at the side can be drawn close to each other; in a similar way, the side handrails and the rear wheel bracket can be mutually closed, and the rear wheel bracket and the front wheel bracket are mutually closed. Meanwhile, when the push handle, the side handrails and the rear wheel bracket are mutually closed, the rear support connecting rod is linked with the push handle and rotates relative to the rear wheel bracket, and at the moment, the rear support connecting rod can drive the seat rod to rotate so as to mutually close the seat rod and the rear wheel bracket; when the seat post rotates, the seat post supporting rod is linked with the seat post to ensure the rotation of the seat post. When the rear wheel support and the front wheel support are close to each other, the front support connecting rod and the rear support connecting rod are linked and rotate relative to the front wheel support, and finally the completion of the integral folding work of the frame is ensured. As a whole, the foldable cart frame is simple in structure and convenient to fold.
Drawings
Fig. 1 is a schematic side view of a foldable stroller frame according to an embodiment of the present invention in a fully opened state;
fig. 2 is a schematic perspective view of a foldable stroller frame according to an embodiment of the present invention in a fully opened state;
fig. 3 is a schematic side view of a foldable stroller frame according to an embodiment of the present invention in a semi-folded state;
fig. 4 is a schematic perspective view of a foldable stroller frame according to an embodiment of the present invention in a semi-folded state;
fig. 5 is a schematic side view of a foldable stroller frame according to an embodiment of the present invention in a fully folded state;
fig. 6 is a schematic perspective view of a foldable stroller frame according to an embodiment of the present invention in a fully folded state.
In the figure:
1. a front wheel bracket; 2. a rear wheel support; 3. a side arm rest; 4. a push handle; 41. a body portion; 42. an extension portion; 43. the handle is pushed to unlock the piece; 5. a rear support link; 51. a first link section; 52. a second link section; 6. a front support link; 7. a seat post; 8. a seat post support bar;
9. a first connecting pin; 10. a second connecting pin; 11. a third connecting pin; 12. a fourth connecting pin; 13. a fifth connecting pin; 14. a sixth connecting pin; 15. a seventh connecting pin; 16. an eighth connecting pin; 17. a front wheel assembly; 18. a rear wheel assembly; 19. a seat board.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
This embodiment provides a foldable stroller frame, which mainly comprises a front wheel bracket 1, a rear wheel bracket 2, side handrails 3, push handles 4, a rear support link 5, a front support link 6, a seat post 7 and a seat post support bar 8, as shown in fig. 1-6. Wherein, the rear wheel bracket 2 is rotationally connected with the front wheel bracket 1. The side arm rests 3 are rotatably connected to the upper ends of the rear wheel brackets 2. The push handle 4 is rotatably connected to the upper end of the side rail 3. One end of the rear supporting connecting rod 5 is rotatably connected with the pushing handle 4, and the other end of the rear supporting connecting rod 5 is rotatably connected with the rear wheel bracket 2. One end of the front support link 6 is rotatably connected with the front wheel bracket 1, and the other end of the front support link 6 is rotatably connected with the rear support link 5. The seat post 7 is disposed in front of the rear support link 5 and is rotatably connected to the rear support link 5. The seat post supporting rod 8 is arranged below the seat post 7, one end of the seat post supporting rod 8 is rotatably connected with the front wheel bracket 1, and the other end of the seat post supporting rod 8 is connected with the seat post 7 in a sliding mode along the length direction of the seat post 7.
When the folding is needed, the push handle 4 is pushed, so that the push handle 4 and the side handrail 3 are relatively rotated, and the push handle 4 and the side handrail 3 can be mutually closed; in a similar manner, the side arm rests 3 and the rear wheel support 2 can be moved toward each other, and the rear wheel support 2 and the front wheel support 1 can be moved toward each other. Meanwhile, when the push handle 4, the side armrests 3 and the rear wheel bracket 2 are mutually closed, the rear support connecting rod 5 is linked with the push handle 4 and rotates relative to the rear wheel bracket 2, and at the moment, the rear support connecting rod 5 can drive the seat rod 7 to rotate, so that the seat rod 7 and the rear wheel bracket 2 are mutually closed; when the seat post 7 rotates, the seat post support rod 8 is linked with the seat post 7 to ensure the seat post 7 to rotate. When the rear wheel bracket 2 and the front wheel bracket 1 are close to each other, the front support connecting rod 6 and the rear support connecting rod 5 are linked and rotate relative to the front wheel bracket 1, and finally the completion of the integral folding work of the frame can be ensured. Wholly, this collapsible shallow frame simple structure can one-time folding shaping, convenient and fast more, and folding back small in size is convenient for accomodate, and user experience is good.
Alternatively, as shown in fig. 1 and 2, the front wheel bracket 1, the rear wheel bracket 2 and the side arm rests 3 are coaxially and rotatably connected to make the overall structure simpler and more compact. In this embodiment, the upper end of the rear wheel bracket 2 is provided with a first connecting pin 9, and the front wheel bracket 1 and the side armrest 3 are rotatably connected with the rear wheel bracket 2 through the first connecting pin 9.
Further, the seat post support rod 8 and the rear wheel bracket 2 are connected to the front wheel bracket 1 in a non-coaxial rotation manner. In this embodiment, a second connecting pin 10 is provided at the upper end of the front wheel bracket 1, and the seat post support rod 8 is rotatably connected to the front wheel bracket 1 through the second connecting pin 10.
Here, the structure of the seatpost support bar 8 will be described. In this embodiment, the seat post support rod 8 is an L-shaped rod, which has a simple structure, low cost and high strength. Specifically, the lower end of the first side of the L-shaped rod is rotatably connected with the front wheel bracket 1 through a second connecting pin 10, and the second side of the L-shaped rod is inserted into the seat rod 7 in a sliding manner along the length direction of the seat rod 7. Accordingly, on the basis that the seat post support rod 8 plays a role of supporting the seat post 7, it can be seen in combination with fig. 1 and 3 that: when the seat post 7 rotates, the seat post supporting rod 8 can rotate relative to the front wheel support 1 through the first edge, and then the second edge can slide relative to the seat post 7, so that linkage between the seat post supporting rod 8 and the seat post 7 is realized, and the seat post supporting rod 8 and the seat post 7 are prevented from being separated from each other. In this embodiment, the seat post 7 is a hollow post.
Optionally, the seat post 7 is rotationally connected with the middle of the rear support link 5 to avoid the over-concentration of the distribution of the rotational connection structure on the rear support link 5, making the overall structure more mishaped. In this embodiment, a third connecting pin 11 is disposed in the middle of the rear support link 5, and the seat post 7 is rotatably connected to the rear support link 5 through the third connecting pin 11.
Further, a seat plate 19 is fixedly provided above the seat bar 7. It will of course be appreciated that the seat post 7 remains substantially horizontal to the ground when the foldable stroller frame is in the unfolded state, so as to facilitate seating of an infant on the seat plate 19.
The following will describe in detail the connection arrangements and the like at other positions in the frame of the foldable stroller, substantially in the order from top to bottom, in connection with fig. 1-4.
Alternatively, the push handle 4 includes a body portion 41 and an extension portion 42 formed by extending a lower end of the body portion 41. Wherein, the lower end of the body part 41 is rotatably connected with the upper end of the side armrest 3, and the end of the extension part 42 not connected with the body part 41 is rotatably connected with the rear support link 5, so as to simultaneously realize the rotary connection between the push handle 4 and both the side armrest 3 and the rear support link 5.
In this embodiment, the fourth coupling pin 12 is provided at the lower end of the body portion 41 of the push handle 4, and the push handle 4 is rotatably coupled to the side rail 3 by the fourth coupling pin 12. A fifth connecting pin 13 is provided at an end of the extension portion 42 not connected to the body portion 41 (a lower end of the extension portion 42 in fig. 3), and the push handle 4 is rotatably connected to the rear support link 5 via the fifth connecting pin 13.
Alternatively, the rear support link 5 includes a first link section 51 and a second link section 52 formed by extending a lower end of the first link section 51. Wherein, the two ends of the first connecting rod section 51 are respectively connected with the push handle 4 and the rear wheel bracket 2 in a rotating way, and the end of the second connecting rod section 52 which is not connected with the first connecting rod section 51 is connected with the front support connecting rod 6 in a rotating way.
In this embodiment, a sixth connecting pin 14 is provided on the rear wheel carrier 2, and a seventh connecting pin 15 is provided at the end of the second link section 52 that is not connected to the first link section 51 (the left end of the second link section 52 in fig. 1). The upper end of the first link segment 51 is rotatably connected with the push handle 4 through a fifth connecting pin 13, the lower end of the first link segment 51 is rotatably connected with the rear wheel bracket 2 through a sixth connecting pin 14, and the second link segment 52 is rotatably connected with the right end of the front support link 6 through a seventh connecting pin 15.
Further, an eighth link pin 16 is provided at a lower end of the front wheel carrier 1, and a left end of the front support link 6 is rotatably coupled to the front wheel carrier 1 by the eighth link pin 16.
Furthermore, as can be seen from fig. 1, when the foldable stroller frame is in the unfolded state, the front wheel bracket 1, the side arm rests 3, the rear support link 5 and the front support link 6 may form an approximately triangular structure, so that the overall structure is very stable.
Optionally, a locking mechanism is provided between the side rail 3 and the push handle 4. When the foldable stroller frame is unfolded, the foldable stroller frame can be locked in the unfolded state through the locking mechanism. Further, a handle release 43 is provided on the handle 4, and the locking mechanism can be released by operating the handle release 43, so that the frame can be folded. Since the structures of the locking mechanism and the handle release member 43 are conventional, they will not be described in detail.
At this time, the overall working principle of the foldable stroller frame is as follows:
(1) locking the foldable stroller frame by the locking mechanism into the unfolded state as shown in fig. 1 and 2 for normal use;
(2) when the foldable stroller frame needs to be folded, the push handle unlocking piece 43 is operated to unlock the locking mechanism, so that the push handle 4 is pushed forwards, and the foldable stroller frame is folded to be in a half-folding state as shown in fig. 3 and 4;
(3) continued pushing on the push handle 4 folds the foldable stroller frame to the fully folded position shown in fig. 5 and 6.
Optionally, the foldable stroller frame further comprises a front wheel assembly 17 and a rear wheel assembly 18. In this embodiment, the front wheel assembly 17 is mounted on the lower end of the front wheel frame 1, and the rear wheel assembly 18 is mounted on the lower end of the rear wheel assembly 18. Since the structures of the front wheel assembly 17 and the rear wheel assembly 18 are prior art, they will not be described in detail herein. It will also be appreciated that in other embodiments, the front wheel assembly 17 may be mounted to the lower end of the front support link 6, again for ease of use.
It should be further noted that, as a whole, the foldable stroller frame provided in this embodiment has a left-right symmetric structure, and each structure of the foldable stroller frame is also substantially arranged in a left-right symmetric manner.
The present embodiments also provide a foldable stroller comprising a foldable stroller frame as described above.
To sum up, this embodiment provides a collapsible shallow frame and collapsible shallow, and this collapsible shallow frame's simple structure, it is folding convenient, can provide good user experience.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (10)
1. A foldable stroller frame, comprising:
a front wheel bracket (1);
the rear wheel bracket (2) is rotationally connected with the front wheel bracket (1);
the side handrail (3) is rotatably connected to the upper end of the rear wheel bracket (2);
the push handle (4) is rotatably connected to the upper end of the side handrail (3);
one end of the rear supporting connecting rod (5) is rotationally connected with the push handle (4), and the other end of the rear supporting connecting rod is rotationally connected with the rear wheel bracket (2);
one end of the front support connecting rod (6) is rotationally connected with the front wheel bracket (1), and the other end of the front support connecting rod is rotationally connected with the rear support connecting rod (5);
the seat rod (7) is arranged in front of the rear supporting connecting rod (5) and is rotationally connected with the rear supporting connecting rod (5);
the seat post supporting rod (8) is arranged below the seat post (7), one end of the seat post supporting rod (8) is rotatably connected with the front wheel support (1), and the other end of the seat post supporting rod (8) is connected with the seat post (7) in a sliding mode along the length direction of the seat post (7).
2. Foldable stroller frame according to claim 1, characterized in that the front wheel support (1), the rear wheel support (2) and the side arm rests (3) are coaxially and rotatably connected.
3. Foldable stroller frame according to claim 2, characterized in that said seat post support bar (8) and said rear wheel bracket (2) are eccentrically rotatably connected to said front wheel bracket (1).
4. Foldable stroller frame according to claim 1, characterized in that said seat post support bar (8) is an L-shaped bar.
5. Foldable stroller frame according to claim 1, characterized in that the seat bar (7) and the middle part of the rear support link (5) are pivotally connected.
6. The foldable stroller frame according to claim 1, wherein the push handle (4) comprises a body portion (41) and an extension portion (42) formed by extending a lower end of the body portion (41), the lower end of the body portion (41) is rotatably connected to an upper end of the side rail (3), and an end of the extension portion (42) not connected to the body portion (41) is rotatably connected to the rear support link (5).
7. The foldable stroller frame according to claim 1, wherein the rear support link (5) comprises a first link section (51) and a second link section (52) formed by extending a lower end of the first link section (51), both ends of the first link section (51) are respectively rotatably connected with the push handle (4) and the rear wheel bracket (2), and one end of the second link section (52) not connected with the first link section (51) is rotatably connected with the front support link (6).
8. The foldable stroller frame according to claim 1, characterized in that a locking mechanism is provided between the side arm rests (3) and the push handle (4), said locking mechanism being configured to be able to lock the foldable stroller frame in an unfolded state.
9. A foldable stroller frame according to claim 8, characterized in that a push handle unlocking piece (43) is arranged on the push handle (4), the push handle unlocking piece (43) being used for unlocking the locking mechanism.
10. A foldable stroller comprising a foldable stroller frame according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022833951.0U CN213921189U (en) | 2020-11-30 | 2020-11-30 | Foldable cart frame and foldable cart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022833951.0U CN213921189U (en) | 2020-11-30 | 2020-11-30 | Foldable cart frame and foldable cart |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213921189U true CN213921189U (en) | 2021-08-10 |
Family
ID=77146196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022833951.0U Active CN213921189U (en) | 2020-11-30 | 2020-11-30 | Foldable cart frame and foldable cart |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213921189U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113730116A (en) * | 2021-09-24 | 2021-12-03 | 浙江爱司米电气有限公司 | Foldable wheelchair |
-
2020
- 2020-11-30 CN CN202022833951.0U patent/CN213921189U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113730116A (en) * | 2021-09-24 | 2021-12-03 | 浙江爱司米电气有限公司 | Foldable wheelchair |
| CN113730116B (en) * | 2021-09-24 | 2024-04-19 | 浙江爱司米电气有限公司 | Foldable wheelchair |
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