CN203580516U - Wheel of baby carrier - Google Patents
Wheel of baby carrier Download PDFInfo
- Publication number
- CN203580516U CN203580516U CN201320625414.4U CN201320625414U CN203580516U CN 203580516 U CN203580516 U CN 203580516U CN 201320625414 U CN201320625414 U CN 201320625414U CN 203580516 U CN203580516 U CN 203580516U
- Authority
- CN
- China
- Prior art keywords
- damper portion
- wheel body
- wheel
- open recess
- ball
- 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 - Lifetime
Links
- 238000013016 damping Methods 0.000 claims abstract description 32
- 238000005096 rolling process Methods 0.000 claims abstract description 16
- 238000009434 installation Methods 0.000 claims description 15
- 239000004020 conductor Substances 0.000 claims description 6
- 210000002421 cell wall Anatomy 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 abstract 1
- 239000000969 carrier Substances 0.000 abstract 1
- 230000000979 retarding effect Effects 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Vibration Dampers (AREA)
Abstract
The utility model discloses a wheel of a baby carrier. A wheel body, a damping piece and a rolling ball are arranged. An annular hollow cavity is formed between the wheel body and the damping piece. Along the circumference direction, the annular hollow cavity comprises a rolling area for rolling of the rolling ball and a damping area for the clamping arrangement of the rolling ball. When the rotating speed of the wheel body is in the limiting speed range, the rolling ball is always located in the rolling area, so that the wheel can roll without barriers. Once the rotating speed of the wheel body surpasses the limiting speed range, the rolling ball is thrown into the damping area from the rolling area, thus, the rotation of the wheel body is hindered by the resistance between the rolling ball and the damping piece, so that the purpose of automatic speed reduction of the wheel is achieved. The wheel is simple in structure, and can automatically reduce speed when the rotating speed of the wheel body is over high, so that the utilization safety of the baby carriers with the wheel is ensured to a certain degree.
Description
Technical field
the utility model relates to a kind of pushchair.
Background technology
on perambulator, be generally equipped with wheel, on wheel, be generally typically provided with the rotating speed that braking mechanism is controlled wheel, but these braking mechanisms need user to go operation just can brake conventionally, children can not independently carry out brake operation to it conventionally, in some perambulator use procedures, as babywalker, when children use perambulator independently, if the rotating speed of wheel is too fast, tend to cause perambulator out of control and cause baby to come to harm, there is larger potential safety hazard.
Summary of the invention
the purpose of this utility model is to provide a kind of pushchair, so that wheel automatic retarding after reaching certain speed, thereby wheel automatic speed-limiting is improved to the safety in utilization of perambulator.
for achieving the above object, the technical solution adopted in the utility model is:
a kind of pushchair, described wheel comprises the wheel seat for being connected with the vehicle frame of described perambulator, by wheel shaft, be arranged on rotationally the wheel body on described wheel seat, damping piece is installed on described wheel seat regularly, on described damping piece, there is the installation portion for being fixedly connected with described wheel seat, be positioned at the damper portion of described installation portion one side, on described damping piece, offer the through hole extending vertically, described wheel shaft is located in described through hole rotationally, on described wheel body, offer an open recess, described damper portion is housed in described open recess, between described open recess and described damper portion, form a ring cavity, in described ring cavity, be provided with ball, described ring cavity is along circumferentially comprising for the scroll zones of described ball rolling with for blocking the damping region of establishing described ball, distance outside the circumferential cell wall of open recess described in described scroll zones and described damper portion between perimembranous is greater than the diameter of described ball, distance outside the circumferential cell wall of open recess described in described damping region and described damper portion between perimembranous is less than the diameter of described ball.
preferably, described open recess is the column type groove arranging with described wheel body coaxial inner conductor, and described damper portion is cylindrical shape, the axial line of described damper portion and the axial line of described wheel body radially deviating along described wheel body.
further preferably, on the described installation portion of described damping piece, be also fixedly provided with annular arrangement supporting blade, described supporting blade be set in regularly in described damper portion and with the setting of described damper portion coaxial inner conductor, described supporting blade is housed in described open recess.
still more preferably, on described installation portion with on the sidepiece of described damper portion homonymy, be fixedly provided with a plurality of brace rods, a plurality of described brace rods distribute along same circumferencial direction on described mount pad, and described supporting blade is set on described a plurality of brace rod and with described mount pad and fixes.
preferably, described open recess is column type groove, the axial line of described column type groove and the axial line of described wheel body radially deviate along described wheel body, and described damper portion is cylindrical shape, and the axial line of described damper portion and the axial line of described wheel body extend along same rectilinear direction.
preferably, described open recess is column type groove, described damper portion is cylindrical shape, described column type groove, both axial lines of described damper portion radially all deviate with the axial line of described wheel body along described wheel body, and described column type groove, both axial lines of described damper portion extend along different straight lines.
utilization due to technique scheme, the utility model compared with prior art has following advantages: pushchair of the present utility model, wherein by wheel body is set, damping piece, ball, make to form between wheel body and damping piece a ring cavity, this ring cavity is along circumferentially comprising for the scroll zones of ball rolling with for blocking the damping region of establishing ball, when the rotating speed of wheel body is within the scope of speed limit, ball is by the without hindrance rolling of wheel in scroll zones all the time, and once the rotating speed of wheel body exceeds speed limit scope, ball is dumped in damping region from scroll zones, under the resistance producing between ball and damper portion, obstruction is received in the rotation of wheel body like this, thereby make wheel reach the object of automatic retarding.This car wheel structure is simple, can automatic retarding when wheel body rotating speed is too high, thus guaranteed to a certain extent to install the safety in utilization of the perambulator of this wheel.
Accompanying drawing explanation
the STRUCTURE DECOMPOSITION schematic diagram that accompanying drawing 1 is pushchair of the present utility model;
accompanying drawing 2 is the integral structure schematic diagram of pushchair of the present utility model when non-braking state;
accompanying drawing 3 is C-C direction cross-sectional schematic in accompanying drawing 2;
accompanying drawing 4 is D-D direction cross-sectional schematic in accompanying drawing 3;
accompanying drawing 5 is the integral structure schematic diagram of pushchair of the present utility model when braking state;
accompanying drawing 6 is E-E direction cross-sectional schematic in accompanying drawing 5;
accompanying drawing 7 is F-F direction cross-sectional schematic in accompanying drawing 6.
wherein: 1, wheel seat; 2, wheel body; 21, body; 22, wheel cap; 3, wheel shaft; 4, damping piece; 41, damper portion; 42, installation portion; 43, brace rod; 5, ball; 6, supporting blade; A, scroll zones; B, damping region.
The specific embodiment
below in conjunction with accompanying drawing and preferred embodiment of the present utility model, the technical solution of the utility model is further elaborated.
referring to the pushchair shown in Fig. 1～7, this wheel comprises wheel seat 1, wheel body 2, damping piece 4, wheel seat 1 is for being connected to wheel the vehicle frame of perambulator, wheel body 2 is arranged on wheel seat 1 rotationally by wheel shaft 3, wheel body 2 comprises a hollow cylindrical body 21 and is fixedly located in the wheel cap 22 of one axle head, between body 21 and wheel cap 22, form an open recess, and this open recess is the column type groove with wheel body 2 coaxial inner conductors.
on damping piece 4, there is installation portion 42 for being fixedly connected with wheel seat 1, be positioned at the damper portion 41 of installation portion 42 1 sides, on damping piece 41, offer the through hole (not indicating in figure) extending vertically, installation portion 42 is fixed on wheel seat 1 and wheel shaft 3 is located in above-mentioned through hole rotationally, damper portion 41 is cylindrical shape, the axial line of this cylindrical axial line and above-mentioned through hole deviates, the axial line of the axial line of this damper portion 41 and wheel body 2 deviates, and the damper portion 41 on damping piece 4 is housed in the open recess of wheel body 2.Between damper portion 41 and open recess, form a ring cavity, in this ring cavity, be provided with ball 5.
because the axial line of damper portion 41 and the axial line of open recess depart from mutually, this ring cavity be along being circumferentially divided into two regions not of uniform size, for the scroll zones A that rolls for ball 5 with for blocking the damping region B that establishes ball 5.In scroll zones A, the distance between the circumferential side wall of wheel body 2 upper shed grooves and damper portion 41 outside perimembranous is greater than the diameter of ball 5, ball 5 can be in scroll zones A Free-rolling; In the B of damping region, the distance between the circumferential side wall of wheel body 2 upper shed grooves and damper portion 41 outside perimembranous is less than the diameter of ball 5, once ball 5 enters in the B of damping region, will be fastened between wheel body 2 and damper portion 41 and can not roll.Like this, when the rotating speed of wheel body 2 is within the scope of speed limit, ball 5 will be all the time in scroll zones A, as shown in Figure 3, Figure 4, the without hindrance rolling of wheel, once and the rotating speed of wheel body 2 surpasses after above-mentioned speed limit scope, centnifugal force is dumped in the B of damping region ball 5, due to the resistance producing between ball 5 and damper portion 41, the rotation of wheel body 2 is hindered, thereby makes wheel reach the object of automatic retarding.This car wheel structure is simple, can automatic retarding when too high at wheel body 2 rotating speeds, thus guaranteed to a certain extent to install the safety in utilization of the perambulator of this wheel.
shown in each accompanying drawing, on installation portion 42, be also fixedly provided with a plurality of brace rods 43 that distribute along same circumferencial direction, the center of circle of the circumference that this brace rod 43 distributes is positioned on the axial line of damper portion 41, brace rod 43 upper supports have supporting blade 6, supporting blade 6 is supported on these brace rods 43 and with installation portion 42 and fixes, simultaneously, this supporting blade 6 is set in damper portion 41 and is housed in the open recess of wheel body 2, so just, can facilitate the installation of damping piece 4, while can carry out spacing vertically to ball 5, prevent its moving axially along wheel body 2 in ring cavity.
certainly, this pushchair also has other set-up mode, for example the open recess of wheel body 2 is set to column type groove, and makes the axial line of this column type groove and the axial line of wheel body 2 along radially the deviating of wheel body 2, and makes the damper portion 41 of cylindrical shape and wheel body 2 coaxial inner conductors distribute simultaneously; Or the open recess of wheel body 2 is set to column type groove, and make the axial line of this column type groove, equal radially the deviating with the axial line of wheel body 2 along wheel body 2 of the axial line of the damper portion of cylindrical shape 41, make both axial lines of damper portion 41 of column type groove and cylindrical shape extend along different rectilinear directions simultaneously, same like this formation meets satisfactory ring cavity, can reach above-mentioned effect equally, but consider the factors such as processing and manufacturing operation, take embodiment shown in the drawings as good.
above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection domain of the present utility model.
Claims (6)
1. a pushchair, described wheel comprises the wheel seat (1) for being connected with the vehicle frame of described perambulator, by wheel shaft (3), be arranged on rotationally the wheel body (2) on described wheel seat (1), it is characterized in that: damping piece (4) is installed on described wheel seat (1) regularly, on described damping piece (4), there is the installation portion (42) for being fixedly connected with described wheel seat (1), be positioned at the damper portion (41) of described installation portion (42) one sides, on described damping piece (41), offer the through hole extending vertically, described wheel shaft (3) is located in described through hole rotationally, described wheel body offers an open recess on (2), described damper portion (41) is housed in described open recess, between described open recess and described damper portion (41), form a ring cavity, in described ring cavity, be provided with ball (5), described ring cavity is along circumferentially comprising the scroll zones of rolling for described ball (5) and the damping region of establishing described ball (5) for card, distance between the circumferential cell wall of open recess described in described scroll zones and described damper portion (41) outside perimembranous is greater than the diameter of described ball (5), distance between the circumferential cell wall of open recess described in described damping region and described damper portion (41) outside perimembranous is less than the diameter of described ball (5).
2. a kind of pushchair according to claim 1, it is characterized in that: described open recess is the column type groove with the setting of described wheel body (2) coaxial inner conductor, described damper portion (41) is cylindrical shape, axial line radially the deviating along described wheel body (2) of the axial line of described damper portion (41) and described wheel body (2).
3. a kind of pushchair according to claim 2, it is characterized in that: on the described installation portion (42) of described damping piece (4), be also fixedly provided with annular arrangement supporting blade (6), described supporting blade (6) be set in regularly described damper portion (41) upper and with described damper portion (41) coaxial inner conductor setting, described supporting blade (6) is housed in described open recess.
4. a kind of pushchair according to claim 3, it is characterized in that: described installation portion (42) above and on the sidepiece of described damper portion (41) homonymy is fixedly provided with a plurality of brace rods (43), a plurality of described brace rods (43) are upper along same circumferencial direction distribution at described mount pad (42), and described supporting blade (6) is set in described a plurality of brace rod (43) above and fixes with described mount pad (42).
5. a kind of pushchair according to claim 1, it is characterized in that: described open recess is column type groove, axial line radially the deviating along described wheel body (2) of the axial line of described column type groove and described wheel body (2), described damper portion (41) is cylindrical shape, and the axial line of the axial line of described damper portion (41) and described wheel body (2) extends along same rectilinear direction.
6. a kind of pushchair according to claim 1, it is characterized in that: described open recess is column type groove, described damper portion (41) is cylindrical shape, described column type groove, both axial lines of described damper portion (41) radially all deviate with the axial line of described wheel body (2) along described wheel body (2), and described column type groove, both axial lines of described damper portion (41) extend along different straight lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320625414.4U CN203580516U (en) | 2013-10-11 | 2013-10-11 | Wheel of baby carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320625414.4U CN203580516U (en) | 2013-10-11 | 2013-10-11 | Wheel of baby carrier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203580516U true CN203580516U (en) | 2014-05-07 |
Family
ID=50578482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320625414.4U Expired - Lifetime CN203580516U (en) | 2013-10-11 | 2013-10-11 | Wheel of baby carrier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203580516U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104085487A (en) * | 2014-05-30 | 2014-10-08 | 长兴俊达塑胶玩具有限公司 | Electric children's bicycle capable of automatic speed limiting |
-
2013
- 2013-10-11 CN CN201320625414.4U patent/CN203580516U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104085487A (en) * | 2014-05-30 | 2014-10-08 | 长兴俊达塑胶玩具有限公司 | Electric children's bicycle capable of automatic speed limiting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |