CN204236530U - Rotary joint and there is the children trolley of this rotary joint - Google Patents
Rotary joint and there is the children trolley of this rotary joint Download PDFInfo
- Publication number
- CN204236530U CN204236530U CN201420666470.7U CN201420666470U CN204236530U CN 204236530 U CN204236530 U CN 204236530U CN 201420666470 U CN201420666470 U CN 201420666470U CN 204236530 U CN204236530 U CN 204236530U
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- CN
- China
- Prior art keywords
- rotary joint
- arc chute
- slide protrusion
- switching pedestal
- connecting portion
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- 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.)
- Withdrawn - After Issue
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 69
- 230000004308 accommodation Effects 0.000 claims description 8
- 238000010586 diagram Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
Abstract
The utility model discloses a kind of rotary joint and there is the children trolley of this rotary joint, wherein in rotary joint structure, when slide protrusion and limiting section match be incorporated in slide in limiting section time, connecting portion can be made to rotate relative to pedestal of transferring, thus make to arrange respectively between switching pedestal and connecting portion two cradling pieces and relatively rotate, adopt said structure can realize being rotationally connected between at least three cradling pieces.Children trolley adopts above-mentioned rotary joint, by this rotary joint, push rod, front frame and after poppet are linked together rotationally, this stealth that not only can realize between each rod member rotates, make stroller frame structure on the whole more succinct, rod member quantity is reduced, also seat pocket interface can be installed on rotary joint go up and be positioned at its area of absence, its outward appearance is more novel and graceful simultaneously.
Description
Technical field
the utility model relates to a kind of rotary joint and has the children trolley of this rotary joint.
Background technology
children trolley of the prior art, comprise the stroller frame with deployed condition and folded state, be located at the wheel assembly bottom described stroller frame, for stroller frame being locked lockout mechanism in the deployed state, stroller frame comprises front frame, after poppet and push rod, between these three rod members, normally wherein two parts phase pivots connect, 3rd parts are connected with the parts phase pivot of in the first two parts again, and again by other rod member, as seat bar, the auxiliary connection of strut or connecting rod, thus realize stroller frame in the deployed state time front frame, mutual expansion between after poppet and push rod, and the relative gathering of stroller frame above-mentioned rod member when folded state.So often cause the rod member quantity in stroller frame many.On more existing children trolleys, also have and the top of the bottom of push rod, the top of front frame and after poppet is rotatably connected by a rotary joint and locked, but its structure is mostly comparatively complicated.
Summary of the invention
the purpose of this utility model is to provide the rotary joint that a kind of structure simply can realize being rotationally connected between more than two cradling pieces.
for achieving the above object, the technical solution adopted in the utility model is: a kind of rotary joint, comprise at least three cradling pieces rotating and connect, a wherein described cradling piece at least three described cradling pieces has switching pedestal, cradling piece described in all the other has connecting portion respectively, each described connecting portion rotates with described switching pedestal respectively and is connected, parts in the described switching pedestal be connected and these two parts of described connecting portion are provided with limiting section, another parts are provided with and can match the slide protrusion being incorporated in and sliding in described limiting section with described limiting section, the sliding trace of all described slide protrusions in the described limiting section of correspondence is with different radii, around the different circular arc lines that same rotation centerline rotates, described switching pedestal has the area of absence of side vacancy, all described circular arc lines around described rotation centerline pass axially through described area of absence.
preferably, described slide protrusion is curved, and described limiting section is also curved, and the length bearing of trend of described slide protrusion and the bearing of trend of described limiting section match.
further, described limiting section is be opened in the arc chute in described switching pedestal and these two parts of described connecting portion on parts, described slide protrusion is plugged in described arc chute slidably, and the extension track of described arc chute forms the sliding trace of described slide protrusion.
further, described arc chute is the groove run through vertically, described slide protrusion is plugged in described arc chute from the side of described arc chute slidably, the opposite side of described arc chute is provided with locating part, and described locating part is fixedly attached on sidepiece that described slide protrusion passes described arc chute to be limited in described arc chute by described slide protrusion.
further, described switching pedestal is provided with multiple described arc chute, the number of described arc chute is consistent with the number of described connecting portion, multiple described arc chute is radially interval setting on described switching pedestal, the described connecting portion that each and described switching pedestal is connected is equipped with described slide protrusion, and each slide protrusion is plugged in described arc chute corresponding thereto respectively ordinatedly.
particularly, described cradling piece has three, wherein a described cradling piece is provided with described switching pedestal, and another two described cradling pieces are respectively equipped with described switching part, and the different both sides rotating with described switching pedestal that two described switching parts lay respectively at described switching pedestal are connected.
preferably, described switching pedestal is a part for the annulus around described rotation centerline rotation, and described area of absence is positioned at the radially inner side of described annulus.
preferably, described rotary joint also comprises the two end cap matched, and forms a spatial accommodation between two described end caps, and described switching pedestal and all described switching parts are all housed in described spatial accommodation, and described area of absence is positioned at outside described spatial accommodation.
another object of the present utility model is to provide a kind of children trolley with above-mentioned rotary joint.
for achieving the above object, the technical solution adopted in the utility model is:
a kind of children trolley with above-mentioned rotary joint, comprise folding stroller frame, in described stroller frame, described cradling piece has three, be respectively front frame, after poppet and push rod, the upper end of wherein said after poppet is provided with described switching pedestal, and the upper end of described front frame, the lower end of described push rod are respectively equipped with described connecting portion.
preferably, described baby seat pocket also comprises the seat pocket interface for being installed on by seat pocket in described stroller frame, and described seat pocket interface is installed on described rotary joint and goes up and be positioned at described area of absence.
preferably, described stroller frame has deployed condition and folded state, and when described stroller frame is in deployed condition, described front frame and described push rod are positioned at the two ends of described switching pedestal and extend to contrary both direction; When described stroller frame is in folded state, described front frame, described push rod rotate respectively to described after poppet and draw in.
due to the utilization of technique scheme; the utility model compared with prior art has following advantages: in rotary joint structure; when slide protrusion slides along circular arc line sliding trace under limiting section position-limiting action; connecting portion can be made to rotate relative to pedestal of transferring; thus make to arrange respectively between switching pedestal and connecting portion two cradling pieces and relatively rotate, adopt said structure can realize being rotationally connected between at least three cradling pieces.Children trolley adopts above-mentioned rotary joint, by this rotary joint, push rod, front frame and after poppet are linked together rotationally, so just, the stealth achieved between each rod member rotates, make stroller frame structure on the whole more succinct, rod member quantity is reduced, also seat pocket interface can be installed on rotary joint go up and be positioned at area of absence, its outward appearance is more novel and graceful simultaneously.
Accompanying drawing explanation
accompanying drawing 1 is in the block diagram under deployed condition for children trolley;
accompanying drawing 2 is the partial exploded view under the children trolley of accompanying drawing 1 is in deployed condition;
accompanying drawing 3 be accompanying drawing 1 children trolley on the STRUCTURE DECOMPOSITION schematic diagram of rotary joint;
accompanying drawing 4 is the block diagram of the rotary joint of accompanying drawing 3;
accompanying drawing 5 is the using state schematic diagram once of the rotary joint of accompanying drawing 3;
accompanying drawing 6 is the schematic diagram under the using state two of the rotary joint of accompanying drawing 3;
accompanying drawing 7 is in the lateral plan under semi-collapsed condition for children trolley;
accompanying drawing 8 is in the block diagram under semi-collapsed condition for children trolley;
accompanying drawing 9 is in the lateral plan under folded state for children trolley;
accompanying drawing 10 is in the block diagram under folded state for children trolley;
wherein: 100, rotary joint; 1, switching pedestal; 11, the first arc chute (the first limiting section); 12, the second arc chute (the second limiting section); 13, after poppet connector;
2, the first connecting portion; 21, the first slide protrusion; 22, front frame connector;
3, the second connecting portion; 31, the second slide protrusion; 32, push rod connector;
4, the first locating part; 5, the second locating part; 6,7, end cap;
200, after poppet; 300, front frame; 400, push rod.
Detailed description of the invention
below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is further elaborated.
see the children trolley shown in Fig. 1, Fig. 2, comprise folding stroller frame, this stroller frame comprises front frame 300, after poppet 200 and push rod 400, the bottom of the top of front frame 200, the top of after poppet 200 and push rod 400 is linked together rotationally by rotary joint 100, current brackets 300 is relative with after poppet 200 to launch and is supported in ground, and push rod 400 is when relatively after poppet 200 launches, stroller frame is launched, and is locked stroller frame can be made stably to be under deployed condition for use by lockout mechanism.When all relative after poppet 200 of current brackets 300, push rod 400 is drawn close, stroller frame is folding so that carry or receive.
see Fig. 2 to the structure and the fundamental diagram thereof that Figure 6 shows that the rotary joint 100 that this children trolley uses.This rotary joint 100 comprises switching pedestal 1, rotate with switching pedestal 1 the first connecting portion 2 and the second connecting portion 3 be connected, switching pedestal 1 is connected to after poppet 200 upper end by after poppet connector 13, first connecting portion 2 is connected to the upper end of front frame 300 by front frame connector 12, the second connecting portion 3 is connected to the lower end of push rod 400 by push rod connector 32.
in the connection structure of switching pedestal 1 and the first connecting portion 2; switching pedestal 1 offers the first arc chute 11; the side of the first connecting portion 2 is provided with can insert in this first arc chute 11 and the first slide protrusion 21 slided along the bearing of trend of the first arc chute 11, this first slide protrusion 21 be plugged in slidably in this first arc chute 11 along its camber line extend track slide so that make the first connecting portion 3 relatively switching pedestal 1 rotate.It is with the circular arc line rotated around specific rotation centerline that the camber line of this first arc chute 11 extends track.Above-mentionedly to arrange, can certainly the first slide protrusion is set on switching pedestal 1 and on the first connecting portion, offer the first arc chute 11, so also can to reach identical and be rotationally connected effect.
in the connection structure of switching pedestal 1 and the second connecting portion 3; switching pedestal 1 offers the second arc chute 12; the side of the second connecting portion 3 is provided with can insert in this second arc chute 12 and the second slide protrusion 31 slided along the bearing of trend of the second arc chute 12, this second slide protrusion 31 be plugged in slidably in this second arc chute 12 along its camber line extend track slide so that make the second connecting portion 3 relatively switching pedestal 1 rotate.It is also the circular arc line rotated around specific rotation centerline that the camber line of this second arc chute 12 extends track.Above-mentionedly to arrange, also the second slide protrusion can be located on switching pedestal 1 and the second arc chute to be opened on the second connecting portion 3, so also can reach identical and be rotationally connected effect.
in the present embodiment, the circular arc line that the camber line of the second arc chute 12 extends track place circular arc line and the camber line of the first arc chute 11 extend track place is with different radii, the different circular arc lines that rotate around same rotation centerline.First arc chute 11, second arc chute 12 is arranged separately along the radial direction of switching pedestal 1 on switching pedestal 1.First slide protrusion 21, second slide protrusion 31 all arranges curved, the length bearing of trend of the first slide protrusion 21, second slide protrusion 31 matches with the first arc chute 11, second arc chute 12 respectively, thus make the first slide protrusion 21 in the first arc chute 11, the stably rotational slide in the second arc chute 12 of the second slide protrusion 31.
the side of switching pedestal 1 has area of absence, and the rotation centerline that the camber line of the first arc chute 11 and the second arc chute 12 extends the circular arc line at track place passes axially through above-mentioned area of absence.That is there is certain vacancy spacing in the switching radially inner side of pedestal 1 and above-mentioned rotation centerline.
first arc chute 11 and the second arc chute 12 are the groove run through along the axis of transferring pedestal 1, first slide protrusion 21 is plugged in the first arc chute 11 from the side of switching pedestal 1 slidably, the opposite side of switching pedestal 1 is provided with the first locating part 4, this first locating part 4 be fixedly attached to the first slide protrusion 21 through on the sidepiece of the first arc chute 11 so that the first slide protrusion 21 is limited in the first arc chute 11.Similarly, second slide protrusion 31 is plugged in the second arc chute 12 from the side of switching pedestal 1 slidably, the opposite side of switching pedestal 1 is provided with the second locating part 5, this second locating part 5 be fixedly attached to the second slide protrusion 31 through on the sidepiece of the second arc chute 12 so that the second slide protrusion 31 is limited in the second arc chute 12.When arranging, the first locating part 4, second locating part 5 all can be set to arc.First slide protrusion 21 and the second slide protrusion 31 penetrate the first arc chute 11, second arc chute 12 accordingly from the different both sides of pedestal 1 axis of transferring respectively, and correspondingly, the first locating part 4, second locating part 5 is also positioned at the different both sides of switching pedestal 1.
this rotary joint 100 also comprises the two end cap 6,7 matched, and end cap 6 matches with end cap 7 formation one spatial accommodation, and switching pedestal 1 and the first connecting portion 2, second connecting portion 3 are all housed in this spatial accommodation.
in the present embodiment, switching pedestal 1 is set to a part for annulus, the axial line of this annulus is the rotation centerline of the first arc chute 11 and the second arc chute 12, and the area of absence of switching pedestal 1 is positioned at the radially inner side of annulus, that is the part of circle ring center's place's hollow area.End cap 6,7 is also set to accordingly around the arc shape that same rotation centerline rotates accordingly, after installation, the area of absence of switching pedestal 1 is positioned at the outside of end cap 6 and 7, that is the radially inner side place of rotary joint 100 forms the space of vacancy, the stealth that can realize rotary joint 100 like this rotates, and makes its outward appearance more novel.The space of this vacancy can be used for mount pad pocket interface (not shown), thus is installed in stroller frame by this pocket interface of baby seat pocket same specification.Its modern design is unique, attractive appearance.
like this, the slip of the first slide protrusion 21 in the first arc chute 11 can drive front frame 300 to rotate relative to after poppet 200, and the second slide protrusion 31 slides and push rod 400 can be driven to rotate relative to after poppet 200 in the second arc chute 12.When stroller frame is in deployed condition, as shown in Figure 1, Figure 4, Figure 5, first connecting portion 2 and the second connecting portion 3 lay respectively at the two ends of pedestal 1 of transferring, front frame 300 and push rod 400 is made to be positioned at the two ends of pedestal 1 of transferring and to extend to contrary both direction, under lockout mechanism being set on rotary joint 100 the first slide protrusion 21 and the second slide protrusion 31 can be made stably to be in this position, thus under making stroller frame stably be in deployed condition.
when stroller frame is folded, as shown in Figure 7, Figure 8, first lockout mechanism is unlocked, then slide turning over drive second slide protrusion 31 after push rod 400 in the second arc chute 12 and push rod 400 rotated relative to after poppet 300 and draws close gradually, front frame 300 rotates backward and the first slide protrusion 21 is slided in the first arc chute 11, and then front frame 300 is drawn close to after poppet 300 gradually.Finally, as shown in Figure 6, first slide protrusion 21 and the second slide protrusion 31 slide into front frame connector 22, push rod connector 32 respectively and draw close mutually with after poppet connector 13 respectively, now front frame 300, after poppet 200 and push rod 400 are drawn close mutually and are formed as Fig. 9, Figure 10 state, cart structure after folding is compact, take up room little, and certainly can stand on ground.
to sum up, after adopting the front frame 300 of above-mentioned rotary joint 100 pairs of stroller frame, after poppet 200 and push rod 400 to be rotatably connected, stealthy rotation can be realized, make stroller frame structure on the whole more succinct, outward appearance is more novel and graceful, and rod member quantity is reduced, productive costs can be reduced significantly.Meanwhile, seat pocket interface can be installed in the vacant space of rotary joint 100, make the outward appearance of stroller frame entirety more attractive in appearance.
certainly, when needing to be rotationally connected between the cradling piece more than two or three, the rotary joint 100 similar with the present embodiment also can be adopted to be connected.
when for being rotationally connected between two cradling pieces, what one of them cradling piece was arranged is switching pedestal, and what another cradling piece was arranged is connecting portion, can realize mutual connection of rotating between the two by slide protrusion with coordinating of arc chute.
when for being rotationally connected between more than three cradling pieces, a cradling piece arranges switching pedestal wherein, other cradling piece arranges connecting portion, multiple connecting portion is connected to respectively on switching pedestal, also be rotationally connected by the fit form of slide protrusion and arc chute between each connecting portion and switching pedestal, in the multiple slide protrusion matched and the combination of arc chute, the longitudinal center line of all arc chutes is parallel to each other or extended along same rectilinear direction, and all arc chutes are arranged along the radial direction interval of switching pedestal.
in addition, on many cradling pieces, rotate connect switching pedestal and connecting portion between, also parts in these two parts can arrange slide protrusion, another parts are arranged the limiting section for providing this slide protrusion slide-and-guide, this limiting section is not limited to the arc chute of the present embodiment, also can be that arcuate guide projection waits other position limiting structures, provide slide protrusion to be slided along the sliding trace of circular arc line as long as both match.
above-described embodiment, only for technical conceive of the present utility model and feature are described, its object is to person skilled in the art can be understood 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 done according to the utility model Spirit Essence change or modify, and all should be encompassed within protection domain of the present utility model.
Claims (11)
1. a rotary joint, comprise at least three cradling pieces rotating and connect, a wherein described cradling piece at least three described cradling pieces has switching pedestal, cradling piece described in all the other has connecting portion respectively, each described connecting portion rotates with described switching pedestal respectively and is connected, it is characterized in that: parts in the described switching pedestal be connected and these two parts of described connecting portion are provided with limiting section, another parts are provided with and can match the slide protrusion being incorporated in and sliding in described limiting section with described limiting section, the sliding trace of all described slide protrusions in the described limiting section of correspondence is with different radii, around the different circular arc lines that same rotation centerline rotates, described switching pedestal has the area of absence of side vacancy, all described circular arc lines around described rotation centerline pass axially through described area of absence.
2. rotary joint according to claim 1, is characterized in that: described slide protrusion is curved, and described limiting section is also curved, and the length bearing of trend of described slide protrusion and the bearing of trend of described limiting section match.
3. rotary joint according to claim 2, it is characterized in that: described limiting section is be opened in the arc chute in described switching pedestal and these two parts of described connecting portion on parts, described slide protrusion is plugged in described arc chute slidably, and the extension track of described arc chute forms the sliding trace of described slide protrusion.
4. rotary joint according to claim 3, it is characterized in that: described arc chute is the groove run through vertically, described slide protrusion is plugged in described arc chute from the side of described arc chute slidably, the opposite side of described arc chute is provided with locating part, and described locating part is fixedly attached on sidepiece that described slide protrusion passes described arc chute to be limited in described arc chute by described slide protrusion.
5. rotary joint according to claim 3, it is characterized in that: described switching pedestal is provided with multiple described arc chute, the number of described arc chute is consistent with the number of described connecting portion, multiple described arc chute is radially interval setting on described switching pedestal, the described connecting portion that each and described switching pedestal is connected is equipped with described slide protrusion, and each slide protrusion is plugged in described arc chute corresponding thereto respectively ordinatedly.
6. rotary joint according to claim 5, it is characterized in that: described cradling piece has three, wherein a described cradling piece is provided with described switching pedestal, another two described cradling pieces are respectively equipped with described switching part, and the different both sides rotating with described switching pedestal that two described switching parts lay respectively at described switching pedestal are connected.
7. rotary joint according to claim 1, is characterized in that: described switching pedestal is a part for the annulus around described rotation centerline rotation, and described area of absence is positioned at the radially inner side of described annulus.
8. rotary joint according to claim 1, it is characterized in that: described rotary joint also comprises the two end cap matched, a spatial accommodation is formed between two described end caps, described switching pedestal and all described switching parts are all housed in described spatial accommodation, and described area of absence is positioned at outside described spatial accommodation.
9. one kind has the children trolley of rotary joint as claimed in any of claims 1 to 8 in one of claims, it is characterized in that: described children trolley comprises folding stroller frame, in described stroller frame, described cradling piece has three, be respectively front frame, after poppet and push rod, the upper end of wherein said after poppet is provided with described switching pedestal, and the upper end of described front frame, the lower end of described push rod are respectively equipped with described connecting portion.
10. children trolley according to claim 9, is characterized in that: described baby seat pocket also comprises the seat pocket interface for being installed on by seat pocket in described stroller frame, and described seat pocket interface is installed on described rotary joint and goes up and be positioned at described area of absence.
11. children trolleys according to claim 9, it is characterized in that: described stroller frame has deployed condition and folded state, when described stroller frame is in deployed condition, described front frame and described push rod are positioned at the two ends of described switching pedestal and extend to contrary both direction; When described stroller frame is in folded state, described front frame, described push rod rotate respectively to described after poppet and draw in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420666470.7U CN204236530U (en) | 2014-11-10 | 2014-11-10 | Rotary joint and there is the children trolley of this rotary joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420666470.7U CN204236530U (en) | 2014-11-10 | 2014-11-10 | Rotary joint and there is the children trolley of this rotary joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204236530U true CN204236530U (en) | 2015-04-01 |
Family
ID=52766060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420666470.7U Withdrawn - After Issue CN204236530U (en) | 2014-11-10 | 2014-11-10 | Rotary joint and there is the children trolley of this rotary joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204236530U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104369762A (en) * | 2014-11-10 | 2015-02-25 | 好孩子儿童用品有限公司 | Rotation joint and stroller with rotation joint |
-
2014
- 2014-11-10 CN CN201420666470.7U patent/CN204236530U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104369762A (en) * | 2014-11-10 | 2015-02-25 | 好孩子儿童用品有限公司 | Rotation joint and stroller with rotation joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150401 Effective date of abandoning: 20161012 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20150401 Effective date of abandoning: 20161012 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |