CN201350918Y - Locking device of steering wheels - Google Patents
Locking device of steering wheels Download PDFInfo
- Publication number
- CN201350918Y CN201350918Y CNU200820303601XU CN200820303601U CN201350918Y CN 201350918 Y CN201350918 Y CN 201350918Y CN U200820303601X U CNU200820303601X U CN U200820303601XU CN 200820303601 U CN200820303601 U CN 200820303601U CN 201350918 Y CN201350918 Y CN 201350918Y
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- hole
- pin
- projection
- wheel support
- holes
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- Expired - Lifetime
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Abstract
The utility model relates to a baby carriage, in particular to a locking device of baby carriage steering wheels, which comprises a rotary wheel support, a rotation shaft connected with the rotary wheel support, and a rotary adjusting cover, wherein the rotary adjusting cover is provided with a bearing supporting mechanism which adapts to the rotation shaft, the lower bottom of the rotary adjusting cover is provided with an annular groove which takes the axial center as the circle center, and the mouth of the groove is downward, the groove bottom is a helix oblique plane, the lower bottom of the rotary adjusting cover is connected with an axle cover, the axle lower cover is provided with one or a plurality of through holes which are corresponding to the annular groove, the lower ports of the through holes are provided with a projection, movable pins which adapt to the through holes are arranged in the through holes, the side walls of the movable pins are provided with a projection, and a restoring spring is arranged between the projection and the projection between the lower ports of the through holes, the upper ends of the movable pins are contacted with the groove bottom of the annular groove, and pin holes which are corresponding to the through holes on the axle lower cover are arranged on the rotary wheel support. When the rotary adjusting cover rotates, the groove bottom of the annular groove props the movable pins downward through the helix oblique plane, the movable pins extend into the pin holes on the rotary wheel support, which enables the rotary wheel support and the axle lower cover to be fixed through the movable pins, and stops wheels from steering, thereby realizing the aim of locking the direction.
Description
Technical field
The utility model relates to a kind of perambulator, especially relates to a kind of blocking device of wheel flutter of perambulator.
Background technology
The perambulator of general perambulator, particularly hand propelled all is equipped with a steering front wheel, and this steering front wheel has made things convenient for the turning of go-cart, but because this device makes that the turning of perambulator is too flexible, makes when sometimes go-cart person holds direction relatively more difficult.Particularly on some more straight roads, the turning of the perambulator of this hand propelled is as long as go-cart person firmly adjusts a lower angle slightly to the left and right and just can travel normally.So in some cases, if rotor wheel is locked, help the control of go-cart direction all the better.Some existing perambulator manufacturers also have been noted that this problem, have done a lot of improvement in this respect, and blocking device promptly is installed on wheel flutter.Rotor wheel can be locked on the craspedodrome angle, the patent No. is that 200510062953 patent of invention discloses a kind of Lenkradschlossvorrichtung, and it comprises: the sleeve assembly, follow the operational motion of wheel flutter and the rear side S. A. that rotates, be fixed on substructure member on the rear side S. A. locking bar with steering shaft locking when chimeric.The length of sleeve assembly shortens when inner sleeve slides at outer sleeve.The leading section of locking bar includes the inclined-plane with the open end closed contact of inner sleeve.The inclined-plane is when the pushing that is subjected to open end, and locking bar moves to the direction away from steering shaft reposefully.This plug-type blocking device must have a push and pull bar, and this handle has a bossing from appearance, and this uses for going up of perambulator, can cause certain complete hidden danger to children.For articles for children, the consideration of this special secure context is very noticeable.And the production and processing of this device is comparatively complicated, and cost is higher, and this mechanism also is subjected to silting up of dust and other impurities easily simultaneously, and is relatively more difficult when causing operation.
Summary of the invention
The utility model mainly is that the lockout mechanism that solves the existing in prior technology rotor wheel exists potential safety hazard, processed complex, silt and cause the technical matters of operating difficulties etc. easily up, a kind of simple to operate, lockout mechanism that simple, safe and reliable rotor wheel is installed is provided.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals: a kind of wheel flutter locking device, comprise the rotor wheel support, the turning cylinder that links to each other with the rotor wheel support, and rotation adjustable cap, this rotation adjustable cap be provided with one with the suitable bearings mechanism of described turning cylinder, it is characterized in that going to the bottom described rotation adjustable cap, to be provided with the axle center be the circular groove in the center of circle, notch down, bottom land is a screw inclined plane, axletree lid of the connection that the rotation adjustable cap is gone to the bottom, be covered with one or several and the cooresponding through hole of circular groove under this axletree, the lower port of through hole is provided with projection, be provided with adaptive with it removable pin in the through hole, the sidewall of removable pin is provided with a projection, be provided with a returning spring between the projection between this projection and the through hole lower port, the upper end of described removable pin contacts with the bottom land of circular groove, described rotor wheel support be provided with axletree under the corresponding pin-and-hole of through hole that covers.When the rotation adjustable cap rotates, the bottom land of circular groove pushes up removable pin downwards by screw inclined plane, removable pin stretches into pin-and-hole on the rotor wheel support and makes rotor wheel support and axletree lower cover cross removable pin to fix, wheel can not be turned to, reach the purpose of locking direction.When the rotation adjustable cap turns to the darker position of circular groove when corresponding with removable pin, removable pin just can return under the effect of returning spring, and at this moment, the rotor wheel support makes the restriction that deactivates untie-sell, can freely turn to
As preferably, described removable pin is divided into pin and downside pin, is provided with a recoil spring between the last downside pin.When the through hole that covers under pin-and-hole on the rotor wheel support and the axletree is not on same axis, by the rotation adjustable cap removable pin is pushed up downwards, between last pin and the downside pin apart from the time can shorten, to avoid physical damnification, when rotor wheel is adjusted to suitable angle, downside pin just can advance to stretch into pin-and-hole in the effect of recoil spring, reaches the fixed purpose of pin.
As preferably, the modulus of elasticity of described recoil spring is greater than the modulus of elasticity of returning spring.This configuration makes removable pin can have longer part to stretch into pin-and-hole on the rotor wheel support, reaches better locking action.Simultaneously also can be so that the quality of fit between rotor wheel support and the wheel lower cover relaxes more, helps production and processing.
As preferably, described circular groove is divided into two sections of symmetry.Be divided into two sections rather than full circle setting can so that, a dead point is arranged in the rotary course, be more conducive to operation, require two sections symmetries can be so that two removable pins reach synchronous in moving fortune process up and down.
As preferably, the through hole that covers under the described axletree has symmetrically arranged two.Each through hole is corresponding with a circular groove.
The beneficial effect that brings of the present utility model is, there is potential safety hazard in the lockout mechanism that solves the existing in prior technology rotor wheel, processed complex silts and causes the technical matters of operating difficulties etc. easily up, and a kind of simple to operate, lockout mechanism that simple, safe and reliable rotor wheel is installed is provided.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model;
Accompanying drawing 2 is a kind of structural representations of the present utility model.
The specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: accompanying drawing 1 is a kind of structural representation of the present utility model; Accompanying drawing 2 is a kind of structural representations of the present utility model.The utility model is a kind of wheel flutter locking device, comprise rotor wheel support 14, the turning cylinder that links to each other with the rotor wheel support, and rotation adjustable cap 1, this rotation adjustable cap be provided with one with the suitable bearings mechanism of described turning cylinder, the rotation adjustable cap is gone to the bottom and is provided with the axle center is the circular groove in the center of circle, circular groove is divided into two sections symmetrical notches down, bottom land is a screw inclined plane, axletree lid of the connection that the rotation adjustable cap is gone to the bottom, be covered with under this axletree two respectively with two sections cooresponding through holes of circular groove, the lower port of through hole is provided with projection, be provided with adaptive with it removable pin in the through hole, removable pin is divided into pin 2 and downside pin 4, is provided with a recoil spring 3 between the last downside pin.The downside pin sidewall of removable pin is provided with a projection, is provided with a returning spring 5 between the projection between this projection and the through hole lower port.The modulus of elasticity of recoil spring is greater than the modulus of elasticity of returning spring.The upper end of described removable pin contacts with the bottom land of circular groove.Described rotor wheel support be provided with axletree under the corresponding pin-and-hole 7 of through hole that covers.
When the rotation adjustable cap rotates, the bottom land of circular groove pushes up removable pin downwards by screw inclined plane, removable pin stretches into pin-and-hole on the rotor wheel support and makes rotor wheel support and axletree lower cover cross removable pin to fix, wheel can not be turned to, reach the purpose of locking direction.When the rotation adjustable cap turns to the darker position of circular groove when corresponding with removable pin, removable pin just can return under the effect of returning spring, and at this moment, the rotor wheel support makes the restriction that deactivates untie-sell, can freely turn to.
So the utility model is simple in structure, easy to operate, safe and reliable.
Claims (6)
1. a wheel flutter locks device, comprise the rotor wheel support, the turning cylinder that links to each other with the rotor wheel support, and rotation adjustable cap, this rotation adjustable cap be provided with one with the suitable bearings mechanism of described turning cylinder, it is characterized in that going to the bottom described rotation adjustable cap, to be provided with the axle center be the circular groove in the center of circle, notch down, bottom land is a screw inclined plane, axletree lid of the connection that the rotation adjustable cap is gone to the bottom, be covered with one or several and the cooresponding through hole of circular groove under this axletree, the lower port of through hole is provided with projection, be provided with adaptive with it removable pin in the through hole, the sidewall of removable pin is provided with a projection, be provided with a returning spring between the projection between this projection and the through hole lower port, the upper end of described removable pin contacts with the bottom land of circular groove, described rotor wheel support be provided with axletree under the corresponding pin-and-hole of through hole that covers.
2. a kind of wheel flutter locking device according to claim 1 is characterized in that described removable pin is divided into pin and downside pin, is provided with a recoil spring between the last downside pin.
3. a kind of wheel flutter locking device according to claim 2 is characterized in that the modulus of elasticity of the modulus of elasticity of described recoil spring greater than returning spring.
4. according to claim 1 or 2 or 3 described a kind of wheel flutter locking devices, it is characterized in that described circular groove is divided into two sections of symmetry.
5. according to claim 1 or 2 or 3 described a kind of wheel flutter locking devices, it is characterized in that the through hole that covers under the described axletree has symmetrically arranged two.
6. a kind of wheel flutter locking device according to claim 4 is characterized in that the through hole that covers under the described axletree has symmetrically arranged two, and in corresponding with described two sections circular grooves respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820303601XU CN201350918Y (en) | 2008-12-23 | 2008-12-23 | Locking device of steering wheels |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820303601XU CN201350918Y (en) | 2008-12-23 | 2008-12-23 | Locking device of steering wheels |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201350918Y true CN201350918Y (en) | 2009-11-25 |
Family
ID=41374304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820303601XU Expired - Lifetime CN201350918Y (en) | 2008-12-23 | 2008-12-23 | Locking device of steering wheels |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201350918Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2684766A1 (en) | 2012-07-13 | 2014-01-15 | Thule Child Transport Systems Ltd | Foldable passenger carrier |
| EP2684765A1 (en) | 2012-07-13 | 2014-01-15 | Thule Child Transport Systems Ltd | Passenger carrier front wheel arrangement |
| CN104494364A (en) * | 2014-12-09 | 2015-04-08 | 上海明晶贸易（宿州）有限公司 | Guide rolling mechanism and pushchair using same |
-
2008
- 2008-12-23 CN CNU200820303601XU patent/CN201350918Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2684766A1 (en) | 2012-07-13 | 2014-01-15 | Thule Child Transport Systems Ltd | Foldable passenger carrier |
| EP2684765A1 (en) | 2012-07-13 | 2014-01-15 | Thule Child Transport Systems Ltd | Passenger carrier front wheel arrangement |
| EP2840011A1 (en) | 2012-07-13 | 2015-02-25 | Thule Child Transport Systems Ltd | Passenger carrier front wheel arrangement |
| CN104494364A (en) * | 2014-12-09 | 2015-04-08 | 上海明晶贸易（宿州）有限公司 | Guide rolling mechanism and pushchair using same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091125 |