CN220905257U - Middle-mounted damping child trailer - Google Patents
Middle-mounted damping child trailer Download PDFInfo
- Publication number
- CN220905257U CN220905257U CN202323070085.4U CN202323070085U CN220905257U CN 220905257 U CN220905257 U CN 220905257U CN 202323070085 U CN202323070085 U CN 202323070085U CN 220905257 U CN220905257 U CN 220905257U
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- China
- Prior art keywords
- frame
- section
- axle
- shock absorbing
- child trailer
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- 238000013016 damping Methods 0.000 title abstract description 9
- 230000035939 shock Effects 0.000 claims abstract description 50
- 239000006096 absorbing agent Substances 0.000 claims abstract description 27
- 230000000452 restraining effect Effects 0.000 claims 2
- 230000005484 gravity Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
Abstract
The utility model relates to a middle-mounted damping child trailer. It has solved the unreasonable technical problem of current bicycle trailer design. This put shock attenuation child trailer includes: the frame is a rectangular annular frame, two sides of the frame are provided with side frame rods, the bottom of the middle part of each side frame rod is provided with an arc section which is concave upwards, the front pedal section and the rear seat section are horizontally connected to the two ends of the arc section and have a height difference; the shock absorbing assembly comprises an axle which is rotationally connected with one end of the frame, close to the rear seat section, and is suspended below the arc section, and shock absorbers which are respectively rotationally connected with the arc section and the axle at two ends, wherein the height of the axle is always higher than that of the front pedal section. The utility model has the advantages that: the reliability of the shock absorbing assembly and the wheel set is improved, the frame is vibrated in the vertical direction, front-back deflection is reduced, and the arc section is suitable for small-angle swing of the shock absorber and has larger pressure bearing capacity.
Description
Technical Field
The utility model belongs to the field of bicycle trailers, and relates to a middle-mounted damping child trailer.
Background
For example, chinese patent literature discloses a bicycle trailer damping device [200720041476.5], including whole frame, two rear wheels, support walking spare and two connecting rods of connecting two rear wheels, two connecting rods are in the below of frame correspondence side, two connecting rod one end is fixed in support walking spare both ends respectively, two connecting rod other ends link to each other in frame rear end both sides respectively, two connecting rod other ends correspond the pin joint respectively in frame rear end both sides, be equipped with again first, two shock absorbers, first shock absorber upper and lower extreme corresponds the pin joint respectively in frame one side middle rear portion and support walking spare one end, second shock absorber upper and lower extreme corresponds the pin joint respectively in frame opposite side middle rear portion and support walking spare other end.
The technical scheme has the defects that: the height of the connecting rod for connecting the wheel sets is lower than the height of the bottom of the frame, so that the front and rear trafficability of the chassis is poor, and the chassis is easy to be impacted and damaged.
Disclosure of utility model
The utility model aims to solve the problems in the prior art and provide a middle-mounted damping child trailer.
The aim of the utility model can be achieved by the following technical scheme:
The middle-mounted damping child trailer comprises:
The frame is a rectangular annular frame, two sides of the frame are provided with side frame rods, the bottom of the middle part of each side frame rod is provided with an arc section which is concave upwards, the front pedal section and the rear seat section are horizontally connected to the two ends of the arc section and have a height difference;
the shock absorbing assembly comprises an axle which is rotationally connected with one end of the frame, close to the rear seat section, and is suspended below the arc section, and shock absorbers which are respectively rotationally connected with the arc section and the axle at two ends, wherein the height of the axle is always higher than that of the front pedal section.
Further, two ends of the wheel shaft protrude out of the frame, and two ends of the wheel shaft are connected with wheel sets.
Further, the wheel axle is positioned at the inner side of the frame and is provided with a connecting rod which extends radially and is rotationally connected with the frame.
Further, a stop lever extending downwards is arranged at the bottom of one end of the rear seat section far away from the arc-shaped section.
Further, a positioning stress groove for connecting one end of the shock absorber is arranged at the lower end of the arc-shaped section.
Further, the arc-shaped section is sleeved with a connecting sleeve protruding radially.
Further, the wheel axle is correspondingly arranged below the positioning stress groove and is provided with a limiting convex part protruding radially.
Further, the shock absorber is vertically connected between the connecting sleeve and the limiting convex part.
Further, the shock absorber is a spring-damped shock absorber.
Compared with the prior art, the middle-mounted damping child trailer has the advantages that the protrusion of the wheel shaft and the bottom of the frame are avoided, the wheel shaft is prevented from being impacted and damaged, the reliability of the shock absorbing assembly and the wheel set is improved, meanwhile, the shock absorber tends to be vertically supported, the gravity center of a passenger is located on the same vertical line, the frame is enabled to vibrate in the vertical direction, front-back deflection is reduced, and the arc-shaped section is suitable for small-angle swing of the shock absorber and has larger bearing capacity.
Drawings
Fig. 1 is a schematic diagram of a middle-mounted shock-absorbing child trailer provided by the utility model.
FIG. 2 is a schematic view of a shock assembly provided with the center-mounted shock absorbing child trailer of FIG. 1.
In the figure, 10, a frame; 11. a side rack bar; 12. an arc section; 13. a front pedal section; 14. a rear seat section; 15. a stop lever; 16. positioning a stress groove; 20. a shock absorbing assembly; 21. a wheel axle; 22. a shock absorber; 23. a connecting rod; 24. connecting sleeves; 25. a restricting protrusion; 30. a wheel set.
Detailed Description
Example 1
Referring to fig. 1 to 2, schematic diagrams of a middle-mounted shock-absorbing child trailer according to the present utility model are shown. This put shock attenuation child trailer includes: the frame 10, the wheel sets 30 connected to the two sides of the frame 10, and the shock absorbing assemblies 20 disposed at the bottoms of the two sides of the frame 10, it is conceivable that the middle-mounted shock absorbing child trailer further includes other functional components and specific structures, such as transmission components, trailer connection components, mounting structures, etc., which are all known to those skilled in the art, and therefore will not be described in detail herein.
The frame 10 is a rectangular annular frame, and is integrally welded or inserted and fastened. The two sides of the frame 10 are provided with side frame rods 11, the bottom of the middle part of each side frame rod 11 is provided with an upward concave arc section 12, a front pedal section 13 and a rear seat section 14 which are horizontally connected at two ends of each arc section 12 and provided with a height difference, a pedal is arranged on the front pedal section 13 with the height difference, a child can get on the frame at a lower height conveniently, a seat plate is arranged on the rear seat section 14, the child can sit conveniently, and the design of the lower seat height of the foot is convenient for the child to have a good sitting posture on the trailer. The arcuate segment 12 is used to connect the front pedal segment 13 with the rear seat segment 14 such that the overall center of gravity of the occupant tends to the arcuate segment 12 position.
The shock absorbing assembly 20 includes an axle 21 rotatably connected to one end of the frame 10 near the rear seat section 14 and suspended below the arc-shaped section 12, a height difference at the bottom of the frame 10 forms a mounting space below the rear seat section 14, the axle 21 is provided with a connecting rod 23 extending radially inside the frame 10 and rotatably connected to the frame 10, in this embodiment, the connecting rod 23 has two connecting rods and is welded to the axle 21, the connecting rod 23 is pivotally connected to the rear end of the frame 10, and one end of the connecting rod 23 remote from the frame 10 can swing.
The two ends of the wheel axle 21 protrude out of the frame 10, the two ends of the wheel axle 21 are connected with wheel sets 30, the wheel sets 30 are provided with flower drums, and the wheel sets 30 are axially limited by adopting a screw fastening structure.
The shock absorber 22 rotatably connected between the arc section 12 and the wheel axle 21, in this embodiment, the shock absorber 22 is a spring damping shock absorber 22, so as to realize the elastic connection between the arc section 12 and the wheel axle 21 on the frame 10, and achieve the purpose of inhibiting the vertical vibration amplitude of the frame 10 through the elastic buffering of the wheel set 30. The height of the wheel axle 21 is always higher than that of the front pedal section 13, so that the wheel axle 21 is prevented from protruding out of the bottom of the frame 10 in the forced vibration process of the shock absorber 22, the wheel axle 21 is prevented from being impacted and damaged, and the reliability of the shock absorbing assembly 20 and the wheel set 30 is improved.
The bottom of one end of the rear seat section 14, which is far away from the arc-shaped section 12, is provided with a stop lever 15 extending downwards, and the stop lever 15 specifically comprises two vertical rods and a cross rod between the vertical rods, which is used as a protection structure of the rear seat section 14 of the frame 10.
The lower end of the arc-shaped section 12 is provided with a positioning stress groove 16 for connecting one end of the shock absorber 22, and the concave positioning stress groove 16 of the arc-shaped section 12 is concentrated on the arc-shaped section 12 and is the upper end fulcrum of the shock absorber 22. The arc section 12 is sleeved with a connecting sleeve 24 protruding radially, a limiting convex part 25 protruding radially is arranged below the wheel axle 21 correspondingly positioned in the positioning stress groove 16, the shock absorber 22 is vertically connected between the connecting sleeve 24 and the limiting convex part 25, the shock absorber 22 tends to be vertically supported and is positioned on the same vertical line with the gravity center of a rider, the frame 10 is made to vibrate in the vertical direction, front-back deflection is reduced, and the arc section 12 is suitable for small-angle swinging of the shock absorber 22 and has larger bearing capacity.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Claims (9)
1. A center-mounted shock absorbing child trailer, the center-mounted shock absorbing child trailer comprising:
The frame is a rectangular annular frame, two sides of the frame are provided with side frame rods, the bottom of the middle part of each side frame rod is provided with an arc section which is concave upwards, the front pedal section and the rear seat section are horizontally connected to the two ends of the arc section and have a height difference;
the shock absorbing assembly comprises an axle which is rotationally connected with one end of the frame, close to the rear seat section, and is suspended below the arc section, and shock absorbers which are respectively rotationally connected with the arc section and the axle at two ends, wherein the height of the axle is always higher than that of the front pedal section.
2. The center-mounted shock absorbing child trailer according to claim 1, wherein the two ends of the wheel axle protrude from the frame and a wheel set is connected to the two ends of the wheel axle.
3. The centrally-mounted shock absorbing child trailer of claim 1, wherein the axle is provided with a radially extending connecting rod rotatably connected to the frame on the inside of the frame.
4. A mid-mounted shock absorbing child trailer as defined in claim 3, wherein the bottom of the end of the rear seat section remote from the arcuate section is provided with a downwardly extending stop bar.
5. A mid-mounted shock absorbing child trailer as defined in claim 3, wherein the lower end of the arcuate section is provided with a detent force slot for connection of one end of the shock absorber.
6. The center-mounted shock absorbing child trailer according to claim 5, wherein the arcuate segments are sleeved with radially projecting sleeves.
7. The centrally-mounted shock-absorbing child trailer according to claim 6, wherein the axle is provided with a radially protruding restraining projection correspondingly positioned below the positioning stress groove.
8. The center-mounted shock absorbing child trailer according to claim 7, wherein the shock absorber is vertically connected between the connecting sleeve and the restraining boss.
9. The center-mounted shock absorbing child trailer of claim 8, wherein the shock absorber is a spring-damped shock absorber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323070085.4U CN220905257U (en) | 2023-11-14 | 2023-11-14 | Middle-mounted damping child trailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323070085.4U CN220905257U (en) | 2023-11-14 | 2023-11-14 | Middle-mounted damping child trailer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220905257U true CN220905257U (en) | 2024-05-07 |
Family
ID=90903702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323070085.4U Active CN220905257U (en) | 2023-11-14 | 2023-11-14 | Middle-mounted damping child trailer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220905257U (en) |
-
2023
- 2023-11-14 CN CN202323070085.4U patent/CN220905257U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |