CN209208938U - A kind of perambulator - Google Patents
A kind of perambulator Download PDFInfo
- Publication number
- CN209208938U CN209208938U CN201821538569.3U CN201821538569U CN209208938U CN 209208938 U CN209208938 U CN 209208938U CN 201821538569 U CN201821538569 U CN 201821538569U CN 209208938 U CN209208938 U CN 209208938U
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- Prior art keywords
- frame
- rotatably connected
- wheel
- link
- connecting rod
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Abstract
The utility model discloses a kind of perambulator, including vehicle frame, steering yoke, steering yoke is rotatably connected at vehicle frame front, further includes the first connecting rod being rotatablely arranged on vehicle frame, second connecting rod；Left connecting rod rotates with the left part of first connecting rod, second connecting rod connect respectively；Right connecting rod rotates with the right part of first connecting rod, second connecting rod connect respectively；Revolver frame, is rotatably connected at left connecting rod；Left steering bar, left part are rotatably connected at revolver frame；Right wheel frame, is rotatably connected at right connecting rod；Right turn bar, right part are rotatably connected at right wheel frame；The wheel shaft of the near front wheel is rotatably connected at revolver frame, the wheel shaft of off-front wheel is rotatably connected at right wheel frame, the steering driving lever for driving left steering bar, right turn bar to move left and right rotated with steering yoke is provided on steering yoke, when perambulator is when turning to, the near front wheel and off-front wheel with respect to ground inclination so that turning radius is smaller and traveling, turn to it is more steady.
Description
Technical Field
The utility model relates to a baby carriage.
Background
The children electric vehicle is a kind of children vehicle driven by motor for children to ride and play. Chinese patent CN201745693U discloses an electric vehicle for children, which comprises a frame, wheel assemblies and a power device for driving the wheel assemblies to rotate, wherein the wheel assemblies comprise left wheels arranged on the left side of the frame and right wheels arranged on the right side of the frame, and the frame is further provided with a differential device. The left wheel and the right wheel can travel at different speeds due to the differential device, so that the turning radius of the baby carriage can be reduced when the baby carriage turns.
Disclosure of Invention
In view of the above, the present invention is directed to a stroller that has a small turning radius and is stable in driving and turning.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a stroller comprising a frame, a steering rod rotatably connected to a front portion of the frame, a front left wheel, a front right wheel, and a rear wheel connected to a rear portion of the frame, the stroller further comprising:
a first link rotatably provided on the frame;
a second link rotatably provided on the frame;
the left connecting rod is respectively and rotatably connected with the left end part of the first connecting rod and the left end part of the second connecting rod;
the right connecting rod is respectively and rotatably connected with the right end part of the first connecting rod and the right end part of the second connecting rod;
a left wheel carrier rotatably connected to the left link;
a left steering rod, the left end part of which is rotatably connected with the left wheel frame;
a right wheel frame rotatably connected to the right link; and
the right end part of the right steering rod is rotatably connected with the right wheel frame;
the left front wheel and the right front wheel are respectively provided with an axle, the axle of the left front wheel can be rotatably connected with the left wheel frame around the self axis, the axle of the right front wheel can be rotatably connected with the right wheel frame around the self axis, the steering rod is provided with a steering driving lever which rotates along with the steering rod and is used for driving the left steering rod and the right steering rod to move left and right, the steering driving lever, the right end part of the left steering rod and the left end part of the right steering rod are connected in a pairwise opposite rotating manner or coaxially rotated, and when the baby carriage is steered, the left front wheel and the right front wheel are inclined relative to the ground.
In one embodiment, the steering lever is fixedly connected to the lower end portion of the steering rod, and the steering lever has a connecting end portion located at the rear side or the front side of the lower end portion of the steering rod, the connecting end portion extends in the up-down direction, and the connecting end portion is rotatably inserted into the right end portion of the left steering rod and the left end portion of the right steering rod.
In one embodiment, the upper part of the left wheel frame is provided with a first rotating shaft with a shaft axis extending along the vertical direction, and the left wheel frame is rotatably connected to the left connecting rod through the first rotating shaft; the upper part of the right wheel frame is provided with a second rotating shaft with the shaft axis extending along the vertical direction, and the right wheel frame is rotatably connected with the right connecting rod through the second rotating shaft.
Preferably, the upper ends of the first rotating shaft and the second rotating shaft are respectively provided with a limiting cover.
In one embodiment, the left wheel carrier has a connecting rod extending rearward, and a rear end portion of the connecting rod of the left wheel carrier extends in the up-down direction and is rotatably inserted in a left end portion of the left steering rod; the right wheel carrier has a connecting rod extending rearward, and a rear end portion of the connecting rod of the right wheel carrier extends in the up-down direction and is rotatably inserted in a right end portion of the right steering rod.
In one embodiment, the first link and the second link are disposed up and down, and the left link and the right link are disposed left and right and located at left and right sides of the steering rod, respectively.
Preferably, the first connecting rod is rotatably connected to the frame through a first rotating shaft, the second connecting rod is rotatably connected to the frame through a second rotating shaft, the left connecting rod is rotatably connected to the left end of the first connecting rod through a third rotating shaft, the left connecting rod is rotatably connected to the left end of the second connecting rod through a fourth rotating shaft, the right connecting rod is rotatably connected to the right end of the first connecting rod through a fifth rotating shaft, the right connecting rod is rotatably connected to the right end of the second connecting rod through a sixth rotating shaft, and the axial lines of the first rotating shaft, the second rotating shaft, the third rotating shaft, the fourth rotating shaft, the fifth rotating shaft and the sixth rotating shaft extend along the front-back direction of the baby carriage.
In one embodiment, the stroller further comprises a first shock absorber coupled between the frame and the left wheel frame and a second shock absorber coupled between the frame and the right wheel frame.
Preferably, the first shock absorbing member includes a first hydraulic spring, and an upper end portion and a lower end portion of the first hydraulic spring are rotatably connected to the frame and the left wheel frame, respectively; and/or the second shock absorption assembly comprises a second hydraulic spring, and the upper end part and the lower end part of the second hydraulic spring are respectively and rotatably connected with the frame and the right wheel frame.
In one embodiment, the stroller includes a seat rotatably connected to the frame by a seventh shaft, and a shaft axis of the seventh shaft extends in a left-right direction of the stroller.
Combine above-mentioned, the utility model adopts the above technical scheme, compare prior art and have following advantage:
when the baby carriage turns, the steering rod rotates to enable one end of the first connecting rod and one end of the second connecting rod to be higher than the other end of the first connecting rod and the other end of the second connecting rod, the left connecting rod and the right connecting rod incline, the left wheel frame and the rear wheel frame incline to one turning side along with the first connecting rod and the second connecting rod to drive the left front wheel and the rear front wheel to incline to one turning side relative to the ground, meanwhile, the left steering rod and the right steering rod are driven by the steering poking rod to move leftwards or rightwards, the left wheel frame and the rear wheel frame rotate leftwards; when the steering wheel is used for steering, only the left wheel frame and the left front wheel as well as the right wheel frame and the right front wheel rotate left and right, the steering force is small when the steering wheel is used for steering, and the driving and the steering are stable.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a perspective view of a stroller according to the present invention from a viewing angle;
FIG. 2 is a perspective view of the wagon of FIG. 1 from another perspective;
FIG. 3 is a perspective view of the wagon of FIG. 1 from yet another perspective;
fig. 4 is a partially enlarged view of a portion a in fig. 3.
Wherein,
1. a frame; 10. a connecting portion; 11. a seat; 2. a steering column; 21. a steering deflector rod; 211. a connecting end portion; 3. a left front wheel; 30. a wheel axle; 31. a left wheel carrier; 311. a connecting rod; 32. a limiting cover; 4. a right front wheel; 40. a wheel axle; 41. a right wheel frame; 411. a connecting rod; 42. a limiting cover; 5. a rear wheel; 61. a first link; 62. a second link; 63. a left connecting rod; 64. a right connecting rod; 65. a left steering lever; 66. a right steering lever; 71. a first hydraulic spring; 72. and a second hydraulic spring.
Detailed Description
The following detailed description of the preferred embodiments of the invention, taken in conjunction with the accompanying drawings, enables the advantages and features of the invention to be more readily understood by those skilled in the art. The position words of front, back, left, right, etc. mentioned in the utility model are defined when the baby carriage is in a straight-going state, and are taken along the running direction as the front.
Fig. 1-4 show a buggy according to the invention, in particular a motor-driven electric vehicle for children. The baby carriage comprises a frame 1, a steering column 2, a left front wheel 3, a right front wheel 4 and a rear wheel 5 connected to the rear part of the frame 1. The direction rod 2 is rotatably connected with the front part of the frame 1; specifically, the front part of the frame 1 has a connecting part 10 located at the front side of the steering column 2, the connecting part 10 is fixed integrally with the other parts of the frame 1, the lower part of the steering column 2 has a rotating shaft part rotatably inserted into the connecting part 10, the rotating shaft part extends substantially in the up-down direction of the stroller and is fixed integrally with the other parts of the steering column 2, and the steering column 2 can rotate left and right around the rotating shaft part. The baby carriage also comprises a first connecting rod 61, a second connecting rod 62, a left connecting rod 63, a left wheel frame 31, a right connecting rod 64, a right wheel frame 41, a left steering rod 65 and a right steering rod 66.
Referring to fig. 2, the first link 61 and the second link 62 are provided to extend substantially in the left-right direction of the stroller and to be spaced up and down, the left link 63 and the right link 64 are provided to extend substantially in the up-down direction and to be spaced left and right, the left link 63 and the right link 64 are respectively located on the left and right sides of the steering column 2, and a four-link mechanism is configured between the first link 61, the second link 62, the left link 63, and the right link 64. The middle part of the first link 61 is rotatably connected to the connecting part 10 of the frame 1 through a first rotating shaft a 1; the middle part of the second link 62 is rotatably connected to the connecting part 10 of the frame 1 through a second rotating shaft a2, and the second rotating shaft a2 is positioned below the first rotating shaft a 1; the upper end of the left link 63 is rotatably connected to the left end of the first link 61 via a third rotating shaft a3, the left link 63 is further rotatably connected to the left end of the second link 62 via a fourth rotating shaft a4, and the fourth rotating shaft a4 is located below the third rotating shaft a 3; the upper end portion of the right link 64 is rotatably connected to the right end portion of the first link 61 by a fifth rotation shaft a5, the right link 64 is further rotatably connected to the right end portion of the second link 62 by a sixth rotation shaft a6, and the sixth rotation shaft a6 is located below the fifth rotation shaft a 5. The axial lines of the first rotating shaft a1, the second rotating shaft a2, the third rotating shaft a3, the fourth rotating shaft a4, the fifth rotating shaft a5 and the sixth rotating shaft a6 are preferably parallel to each other and extend in the front-rear direction of the stroller.
The left front wheel 3 is disposed on the left wheel frame 31, the left wheel frame 31 is rotatably connected to the left link 63, the right front wheel 4 is disposed on the right wheel frame 41, and the right wheel frame 41 is rotatably connected to the right link 64. In this embodiment, the left front wheel 33 has a wheel axle 30, and the wheel axle 30 of the left front wheel 33 is rotatably connected to the lower end of the left wheel frame 31 around its own axis; the right front wheel 44 has an axle 40, and the axle 40 of the right front wheel 44 is rotatably connected to the lower end of the right wheel frame 41 about its axis. The upper portion of the left wheel frame 31 has a first rotating shaft whose axis extends along the up-down direction, the first rotating shaft is fixed with the other portions of the left wheel frame 31 as a whole, the left wheel frame 31 is rotatably connected to the left connecting rod 63 through the first rotating shaft, as shown in fig. 1 and 2, the first rotating shaft is rotatably inserted into the left connecting rod 63, the left wheel frame 31 rotates around the axis of the first rotating shaft relative to the left connecting rod 63, and the upper end portion of the first rotating shaft is provided with a limit cover 32 to prevent the left wheel frame 31 from separating from the left connecting rod 63. The upper portion of the right wheel frame 41 has a second rotating shaft whose axis extends along the up-down direction, the second rotating shaft is fixed with other portions of the right wheel frame 41 as a whole, the right wheel frame 41 is rotatably connected to the right connecting rod 64 through the second rotating shaft, as shown in fig. 1 and 2, the second rotating shaft is rotatably inserted into the right connecting rod 64, the right wheel frame 41 rotates around the axis of the second rotating shaft relative to the right connecting rod 64, and the upper end portion of the second rotating shaft is provided with a limit cover 42 for preventing the right wheel frame 41 from separating from the right connecting rod 64. The first and second rotating shafts are not visible in the left and right links 63 and 64, respectively.
The left steering rod 65 and the right steering rod 66 extend generally in the left-right direction of the stroller. The left end of the left steering rod 65 is rotatably connected to the left wheel frame 31, and the right end of the right steering rod 66 is rotatably connected to the right wheel frame 41. The steering rod 2 is provided with a steering shift lever 12 which rotates along with the steering rod 2 and is used for driving the left steering rod 65 and the right steering rod 66 to move left and right, the steering shift lever 12, the right end part of the left steering rod 65 and the left end part of the right steering rod 66 are connected in a pairwise opposite rotating mode or in a coaxial rotating mode, and the connection in a pairwise opposite rotating mode means that two of the three components are connected in a rotating mode, and the third component is connected with one of the two components in a rotating mode. As shown in fig. 4 in particular, the left wheel carrier 31 has a connecting rod 311 extending rearward, a rear end portion of the connecting rod 311 being bent downward to extend substantially in the up-down direction, a rear end portion of the connecting rod 311 being rotatably inserted in a left end portion of the left steering rod 65; the right wheel frame 41 has a connecting rod 411 extending rearward, a rear end portion of the connecting rod 411 being bent downward to extend substantially in the up-down direction, and a rear end portion of the connecting rod 411 being rotatably inserted in a right end portion of the right steering rod 66. The steering lever 12 is fixedly connected to the lower end portion of the steering rod 2, the steering lever 12 has a connecting end portion 211 located at the rear side of the lower end portion of the steering rod 2 (in other embodiments, it may be located at the front side of the lower end portion of the steering rod 2), the connecting end portion 211 of the steering lever 12 is bent upward and extends substantially in the up-down direction, and the connecting end portion 211 of the steering lever 12 is rotatably inserted into the right end portion of the left steering rod 65 and the left end portion of the right steering rod 66, so that these three components are rotatably connected.
The stroller further includes a first shock absorber connected between the connecting portion 10 of the frame 1 and the left wheel frame 31, and a second shock absorber connected between the connecting portion 10 of the frame 1 and the right wheel frame 41. The first shock absorbing part and the second shock absorbing part can correspondingly extend and retract along with the deformation of the four-bar linkage mechanism, and have a shock absorbing function. In this embodiment, the first shock absorbing member and the second shock absorbing member may both adopt hydraulic springs, and include a cylinder body and a piston cylinder slidably connected to the cylinder body, and the cylinder body is provided with hydraulic oil and a spring therein for driving the piston rod to extend and retract relative to the cylinder body. A hydraulic spring is a known elastic buffer device, and is not described in detail herein. The first suspension is a first hydraulic spring 71, an upper end of the first hydraulic spring 71 is pivotally connected to the connecting portion 10 of the frame 1, and a lower end of the first hydraulic spring 71 is pivotally connected to the left wheel frame 31. The second suspension is a second hydraulic spring 72, an upper end of the second hydraulic spring 72 is pivotally connected to the connecting portion 10 of the frame 1, and a lower end of the second hydraulic spring 72 is pivotally connected to the right wheel frame 41.
The axle of the rear wheel 5 is rotatably connected to the rear end of the frame 1 about its own axis. The stroller includes a seat 11, the seat 11 is rotatably connected to the frame 1 by a seventh rotation shaft a7, and an axis line of the seventh rotation shaft a7 extends in a left-right direction of the stroller.
The use of the stroller is described below with reference to fig. 1-4:
when the baby carriage is in straight motion, the left front wheel 33, the right front wheel 44 and the rear wheel 55 are erected on the ground, the first connecting rod 61 and the second connecting rod 62 extend horizontally, and the left end part and the right end part of each connecting rod are level with each other;
when the baby carriage turns to the left, the steering rod 2 rotates to the left and the body of the child leans to the left, so that the left end parts of the first connecting rod 61 and the second connecting rod 62 are higher than the right end parts respectively, the four-bar linkage is deformed, so that the left connecting rod 63 and the right connecting rod 64 incline to the left, the left wheel frame 31 and the right wheel frame 41 are driven to incline to the left, and the left front wheel 33 and the right front wheel 44 are correspondingly inclined to the left relative to the ground; meanwhile, as the steering rod 2 rotates to the left, the connecting end 211 of the steering lever 12 moves to the right, which drives the left steering rod 65 and the right steering rod 66 to move to the right, and under the pulling of the left steering rod 65 and the pushing of the right steering rod 66, the left front wheel 3 and the right front wheel 4 rotate to the left, so that the driving directions of the left front wheel 3 and the right front wheel 4 are changed, and the left steering is realized;
when the stroller is turned to the right, the steering column 2 is rotated to the right and the child leans to the right so that the right end portions of the first link 61 and the second link 62 are higher than the right end portions, respectively, and the four-bar linkage is deformed so that the left link 63 and the right link 64 are tilted to the right, thereby tilting the left wheel frame 31 and the right wheel frame 41 to the right, and the left front wheel 33 and the right front wheel 44 are tilted to the right with respect to the ground; meanwhile, as the steering rod 2 rotates to the right, the connecting end 211 of the steering lever 12 moves to the left, which drives the left steering rod 65 and the right steering rod 66 to move to the left, and under the pushing of the left steering rod 65 and the pulling of the right steering rod 66, the left front wheel 3 and the right front wheel 4 rotate to the right, so that the driving directions of the left front wheel 3 and the right front wheel 4 are changed, and the right steering is realized.
As is apparent from the above description, since the left and right front wheels 33 and 44 are inclined to the turning side with respect to the ground during turning, the turning radius of the stroller during turning is small, and the left and right wheel frames 31 and 3, and the right and left wheel frames 41 and 4 are only required to be turned left and right to turn, the steering force during turning is small, and the traveling and the turning are smooth.
The above-mentioned embodiments are only for illustrating the technical idea and features of the present invention, and are preferred embodiments, so that those skilled in the art can understand the contents of the present invention and implement the present invention accordingly, and the protection scope of the present invention cannot be limited thereby. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. A stroller comprising a frame, a steering rod, a front left wheel, a front right wheel, and a rear wheel coupled to a rear portion of the frame, wherein the steering rod is rotatably coupled to a front portion of the frame, the stroller further comprising:
a first link rotatably provided on the frame;
a second link rotatably provided on the frame;
the left connecting rod is respectively and rotatably connected with the left end part of the first connecting rod and the left end part of the second connecting rod;
the right connecting rod is respectively and rotatably connected with the right end part of the first connecting rod and the right end part of the second connecting rod;
a left wheel carrier rotatably connected to the left link;
a left steering rod, the left end part of which is rotatably connected with the left wheel frame;
a right wheel frame rotatably connected to the right link; and
the right end part of the right steering rod is rotatably connected with the right wheel frame;
the left front wheel and the right front wheel are respectively provided with an axle, the axle of the left front wheel can be rotatably connected with the left wheel frame around the self axis, the axle of the right front wheel can be rotatably connected with the right wheel frame around the self axis, the steering rod is provided with a steering driving lever which rotates along with the steering rod and is used for driving the left steering rod and the right steering rod to move left and right, the steering driving lever, the right end part of the left steering rod and the left end part of the right steering rod are connected in a pairwise opposite rotating manner or coaxially rotated, and when the baby carriage is steered, the left front wheel and the right front wheel are inclined relative to the ground.
2. A stroller according to claim 1, wherein the steering lever is fixedly connected to a lower end portion of the steering rod, and the steering lever has a connecting end portion located at a rear side or a front side of the lower end portion of the steering rod, the connecting end portion extending in an up-down direction, and the connecting end portion being rotatably inserted into a right end portion of the left steering rod and a left end portion of the right steering rod.
3. A stroller according to claim 1, wherein the upper portion of the left wheel frame has a first rotating shaft having a shaft axis extending in the up-down direction, the left wheel frame being rotatably connected to the left link by the first rotating shaft; the upper part of the right wheel frame is provided with a second rotating shaft with the shaft axis extending along the vertical direction, and the right wheel frame is rotatably connected with the right connecting rod through the second rotating shaft.
4. A stroller according to claim 3, wherein the upper ends of the first and second rotary shafts are respectively provided with a stopper cover.
5. A stroller according to claim 1, wherein the left wheel frame has a connecting rod extending rearward, a rear end portion of the connecting rod of the left wheel frame extending in the up-down direction and being rotatably inserted in a left end portion of the left steering rod; the right wheel carrier has a connecting rod extending rearward, and a rear end portion of the connecting rod of the right wheel carrier extends in the up-down direction and is rotatably inserted in a right end portion of the right steering rod.
6. A stroller according to claim 1, wherein the first link and the second link are disposed up and down, and the left link and the right link are disposed left and right and located on left and right sides of the direction lever, respectively.
7. A stroller according to claim 5, wherein the first link is rotatably connected to the frame by a first pivot, the second link is rotatably connected to the frame by a second pivot, the left link is rotatably connected to a left end portion of the first link by a third pivot, the left link is rotatably connected to a left end portion of the second link by a fourth pivot, the right link is rotatably connected to a right end portion of the first link by a fifth pivot, the right link is rotatably connected to a right end portion of the second link by a sixth pivot, and axial lines of the first pivot, the second pivot, the third pivot, the fourth pivot, the fifth pivot and the sixth pivot extend in a front-rear direction of the stroller.
8. A stroller according to claim 1, wherein: the baby carrier also comprises a first shock-absorbing part connected between the frame and the left wheel frame and a second shock-absorbing part connected between the frame and the right wheel frame.
9. A stroller according to claim 8, wherein the first suspension member comprises a first hydraulic spring having upper and lower ends rotatably connected to the frame and the left wheel frame, respectively; and/or the second shock absorbing part comprises a second hydraulic spring, and the upper end part and the lower end part of the second hydraulic spring are respectively and rotatably connected with the frame and the right wheel frame.
10. A stroller according to claim 1, wherein the stroller comprises a seat rotatably connected to the frame by a seventh pivot, the axis of the seventh pivot extending in a left-right direction of the stroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821538569.3U CN209208938U (en) | 2018-09-19 | 2018-09-19 | A kind of perambulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821538569.3U CN209208938U (en) | 2018-09-19 | 2018-09-19 | A kind of perambulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209208938U true CN209208938U (en) | 2019-08-06 |
Family
ID=67454394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821538569.3U Expired - Fee Related CN209208938U (en) | 2018-09-19 | 2018-09-19 | A kind of perambulator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209208938U (en) |
-
2018
- 2018-09-19 CN CN201821538569.3U patent/CN209208938U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190806 Termination date: 20210919 |
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| CF01 | Termination of patent right due to non-payment of annual fee |