CN202358157U - Baby carriage wheel group positioning mechanism - Google Patents
Baby carriage wheel group positioning mechanism Download PDFInfo
- Publication number
- CN202358157U CN202358157U CN2011204009558U CN201120400955U CN202358157U CN 202358157 U CN202358157 U CN 202358157U CN 2011204009558 U CN2011204009558 U CN 2011204009558U CN 201120400955 U CN201120400955 U CN 201120400955U CN 202358157 U CN202358157 U CN 202358157U
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- Prior art keywords
- wheels
- button
- wheel seat
- guide
- locking
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Abstract
The utility model discloses a baby carriage wheel group positioning mechanism, which comprises a wheel seat, a wheel group and a press key, wherein the wheel group comprises a connecting seat and wheels; the connecting seat and the wheel seat are movably connected; the press key is installed in a guide chute on the wheel seat and can vertically move along the guide chute by virtue of an elastic element installed in the wheel seat; the lower end of the press key is provided with a positioning piece; the connecting seat is provided with a positioning part corresponding to the positioning piece; when the press key is pressed, the positioning piece of the press key can be connected with or separated from the positioning part of the connecting seat so as to cause the wheel group to be locked or freely rotate; a locking piece is also arranged in the wheel seat; the press key is provided with a guide structure, and the guide structure comprises a guide part and a locking part; when the press key is pressed, the locking piece can be connected with or separated from the locking part of the guide structure under the guidance of the guide part; and when the locking piece and the locking part of the guide structure are connected, the positioning piece and the positioning part are kept under the connecting state. The wheel group positioning mechanism is simple to operate, and the locking state and unlocking state can be visually judged.
Description
Technical field
The utility model relates to a kind of perambulator wheels and turns to control mechanism, relates in particular to a kind of perambulator wheels detent mechanism.
Background technology
When promoting pushchair, laborsaving and smooth and easy in order to promote, on perambulator, install the wheels that can turn to usually additional.These wheels that can turn to can be installed on the preceding caster pipe or back caster pipe of perambulator, are convertible pushing direction through handspike.Further be to install detent mechanism additional at these wheels wheels are freely turned to or lock so that can select.
Fig. 9 shows a kind of traditional wheels detent mechanism, and these wheels are installed on the pin pipe 18.Said wheels comprise that one is articulated in wheel seat 1 on the wheel, a central rotating shaft 15, a treadle 16 and positioning piece 17, and wherein, central rotating shaft 15 is fixed on the pin pipe 18 and has a knock hole 19.Wheel seat 1 rotating being stuck on the central rotating shaft 15 makes that wheel seat 1 can be around central rotating shaft 15 rotations.Locations 17 is installed on the inside of wheel seat 1, and the control through treadle 16 moves up and down, and makes locations 17 cooperate the location with the knock hole 19 of central rotating shaft 15, can select to make wheels to be positioned to that single direction rotates or the function of multi-aspect rotation thereby reach.
Above-mentioned traditional wheels detent mechanism mainly is to control through treadle, and treadle mainly is to be articulated on the wheel seat, and between two-wheeled.Yet the diameter of general wheel is all greater than wheel seat.Therefore, when the operator wants to control the rotation direction of wheels, advance the line operate, also must hand or pin be stretched between the two-wheeled and operate cooresponding inconvenience except moving to wheels.In addition, thus when the operator when the operation treadle is upwards removed positioning states, must upwards hook treadle with pin, this damages operator's vamp easily.
The utility model content
In order to overcome the above-mentioned shortcoming of prior art, the utility model provides a kind of perambulator wheels detent mechanism.
Perambulator wheels detent mechanism according to the utility model comprises wheel seat, wheels and button, and wheels comprise Connection Block and wheel, and Connection Block and wheel seat flexibly connect; Button is installed in the guide chute on the wheel seat and can moves up and down along guide chute by being installed in the elastic element in the wheel seat, and the lower end of button is provided with locations, and Connection Block is provided with and the cooresponding location division of locations; When depressing button, the locations of button can be engaged with each other with the location division of Connection Block or separate, so that wheels lock or freely turn to; It is characterized in that; Also be provided with locking piece in the wheel seat, and button has guide frame, guide frame comprises guide portion and locking part; When depressing button; Locking piece can engage with the locking part of guide frame or separate under the guiding of guide portion, and when locking piece engaged with the locking part of guide frame, locations and location division kept engagement state.
According to a preferred embodiment of the utility model, said locations is a locating dowel pin, and said location division is a knock hole.
According to a preferred embodiment of the utility model, locking piece is a zigzag, and two ends are the crotch form, and an end is inserted in the guide chute of wheel seat regularly, and the guide frame on the other end and the button cooperatively interacts.
According to a preferred embodiment of the utility model, guide frame comprises recess and the projection of being located at recess central authorities, and said locking part is positioned on the projection, and the sidewall of recess and the periphery of projection define said guide portion.
According to a preferred embodiment of the utility model, the profile of projection comprise V-slot and on meet the inclined-plane, wherein, V-slot is as said locking part; The upper end of recess is the convex horn structure, this convex horn structure be arranged to the V-slot of projection relatively and keep at a certain distance away, and this convex horn structure is met the retaining inclined-plane and is gone out the groove guiding surface and form by going into groove.
The advantage of the perambulator wheels detent mechanism of the utility model is: can let the user judge that with respect to the position of wheel seat wheels are locking or free steering state according to button intuitively; Can let the user can realize positioning action through direct pressing keys, very easy.
Description of drawings
Below with reference to accompanying drawings the utility model is elaborated, wherein:
Fig. 1 is the decomposition diagram according to the perambulator wheels detent mechanism of the utility model;
Fig. 2 is the decomposition diagram according to the perambulator wheels detent mechanism of the utility model;
Fig. 3 is according to the assembled state transparent view of the perambulator wheels detent mechanism of the utility model, shows released state;
Fig. 4 is according to the assembled state transparent view of the perambulator wheels detent mechanism of the utility model, shows lock-out state;
The transparent view of Fig. 5, partial enlarged drawing and part sectional view show the relative position of perambulator wheels detent mechanism according to the utility model locking piece and button under lock-out state;
The transparent view of Fig. 6, partial enlarged drawing and part sectional view show the relative position of perambulator wheels detent mechanism according to the utility model locking piece and button under released state;
Fig. 7 has schematically shown the perambulator wheels detent mechanism locking piece path of motion in guide frame in the locking and unlocking process according to the utility model;
Fig. 8 shows the guide frame according to the perambulator wheels detent mechanism of the utility model; With
Fig. 9 shows a kind of wheels detent mechanism of the prior art.
The specific embodiment
For the sake of brevity, each accompanying drawing only shows the part of perambulator, and only shows wheels.As depicted in figs. 1 and 2, the perambulator wheels detent mechanism of the utility model comprises wheel seat 1 and wheels 2.Wheel seat 1 is fixed on the lower end of pin pipe.Wheels 2 comprise Connection Block 3 and wheel 4, and Connection Block 3 flexibly connects with wheel seat 1, thereby wheels can freely be turned to.Have guide chute 7 on the wheel seat 1, button 8 is installed in the guide chute 7.Elastic element 9 is located between the upper end of upper end and guide chute 7 of button 8.By elastic element 9, button 8 can move up and down along guide chute 7.The position of elastic element is not limited to above-mentioned, but can change, as long as can realize the pushing function of button 8.In addition, the example that spring is used as elastic element has been shown among the figure, but the type of elastic element can select according to actual needs also.
The lower end of button 8 is provided with locating dowel pin 5.As shown in Figure 4, when button 8 is depressed, this locating dowel pin 5 will be inserted in the knock hole 6 that is located on Connection Block 3 correspondence positions, so that limit the rotation of Connection Block with respect to wheel seat, thereby lock the direction of wheels.As shown in Figure 3, when button 8 was depressed once more, this locating dowel pin 5 can shift out from knock hole 6, and this moment, Connection Block can rotate with respect to wheel seat, thereby wheels can freely be turned to.As optional embodiment, locating dowel pin also can be located on the Connection Block, and knock hole then can be located on the button and the cooresponding position of locating dowel pin.
The lock-out state of wheels and released state are to realize through the locking piece of being located in the wheel seat 1 10.As an embodiment, locking piece 10 is a zigzag, and two ends are set to crotch, and an end is inserted in the guide chute 7 of wheel seat 1 regularly, and the other end cooperatively interacts with the guide frame 11 that is located on the button 8.But the form of locking piece is not limited thereto.As shown in Figure 8, guide frame 11 comprises projection 13 and recess 14, and wherein, projection 13 is located at the central authorities of recess 14.The profile of projection 13 comprise V-slot 13-1 and on meet inclined-plane 13-3, wherein, V-slot 13-1 is made up of sinking inclined-plane 13-2.The upper end of recess 14 is the convex horn structure, this convex horn structure be arranged to the V-slot 13-1 of projection 13 relatively and keep at a certain distance away, and this convex horn structure is met retaining inclined-plane 14-1 and is gone out groove guiding surface 14-2 and form by going into groove.As shown in Figure 7, the periphery of sidewall of recess 14 (comprising the convex horn structure) and projection 13 defines the motion path of locking piece 10 jointly.The concrete form of guide frame also can carry out suitable change, ends lock function as long as satisfy the guiding and the card of locking piece.
The mode of operation of the detent mechanism of the utility model when being described in the locking and unlocking below in conjunction with Fig. 5-7; Wherein, Fig. 5 shows the relative position of under lock-out state locking piece 10 and button 8; Fig. 6 shows the relative position of under released state locking piece 10 and button 8, and Fig. 7 shows the path of motion of locking piece 10 in guide frame 11.When depressing button 8; Locking piece 10 gets into guide frame 11 from the inlet of recess 14; On the path between the periphery of the sidewall of recess 14 and projection 13, rise; Go into 10 entering of groove lead-in chamfered 14-1 guiding locking piece and be in the locating point 12 of V-slot 13-1 the lowest point and remain on this place, the convex horn structure of recess 14 plays and stops that locking piece 10 slips over the effect of V-slot; This moment, button 8 was positioned, thereby made locating dowel pin 5 can not deviate from knock hole 6.When depressing button 8 once more, locking piece 10 breaks away from locating points 12, and is descending along the path between the periphery of the sidewall of recess 14 and projection 13 under the guiding that goes out groove guiding surface 14-2, and button 8 is by jack-up at this moment, thereby makes locating dowel pin 5 deviate from knock hole 6.Therefore,,, just can realize the lock-out state and the released state of wheels, thereby select to make the wheels locking or freely turn to through pressing keys simply according to the utility model.
Above embodiment only is that the utility model is not limited to this as an example.To those skilled in the art, can expect other various change examples, equivalent structure and function.
Claims (5)
1. a perambulator wheels detent mechanism comprises wheel seat (1), wheels (2) and button (8), and wheels comprise Connection Block (3) and wheel (4), and Connection Block and wheel seat flexibly connect; Button is installed in the guide chute on the wheel seat and can moves up and down along guide chute by being installed in the elastic element in the wheel seat, and the lower end of button is provided with locations, and Connection Block is provided with and the cooresponding location division of locations; When depressing button, the locations of button can be engaged with each other with the location division of Connection Block or separate, so that wheels lock or freely turn to; It is characterized in that; Also be provided with locking piece (10) in the wheel seat, and button has guide frame (11), guide frame comprises guide portion and locking part; When depressing button, locking piece can engage with the locking part of guide frame or separate under the guiding of guide portion; Wherein, when locking piece engaged with the locking part of guide frame, locations and location division kept engagement state.
2. perambulator wheels detent mechanism according to claim 1 is characterized in that, said locations is locating dowel pin (5), and said location division is knock hole (6).
3. perambulator wheels detent mechanism according to claim 1 and 2 is characterized in that locking piece is a zigzag, and two ends are the crotch form, and an end is inserted in the guide chute of wheel seat regularly, and the guide frame on the other end and the button cooperatively interacts.
4. perambulator wheels detent mechanism according to claim 1 and 2; It is characterized in that; Guide frame comprises recess (14) and is located at the projection (13) of recess central authorities, and said locking part is positioned on the projection, and the sidewall of recess and the periphery of projection define said guide portion.
5. perambulator wheels detent mechanism according to claim 4 is characterized in that, the profile of projection comprise V-slot (13-1) and on meet inclined-plane (13-3), wherein, V-slot is as said locking part; The upper end of recess is the convex horn structure, this convex horn structure be arranged to the V-slot of projection relatively and keep at a certain distance away, and this convex horn structure is met retaining inclined-plane (14-1) and is gone out groove guiding surface (14-2) and form by going into groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204009558U CN202358157U (en) | 2011-10-20 | 2011-10-20 | Baby carriage wheel group positioning mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204009558U CN202358157U (en) | 2011-10-20 | 2011-10-20 | Baby carriage wheel group positioning mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202358157U true CN202358157U (en) | 2012-08-01 |
Family
ID=46569365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204009558U Expired - Fee Related CN202358157U (en) | 2011-10-20 | 2011-10-20 | Baby carriage wheel group positioning mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202358157U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109771231A (en) * | 2019-01-21 | 2019-05-21 | 天津科技大学 | Children with cerebral palsy rehabilitation go-cart |
-
2011
- 2011-10-20 CN CN2011204009558U patent/CN202358157U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109771231A (en) * | 2019-01-21 | 2019-05-21 | 天津科技大学 | Children with cerebral palsy rehabilitation go-cart |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120801 Termination date: 20181020 |