CN201953803U - Rotation joint and children dining chair with same - Google Patents
Rotation joint and children dining chair with same Download PDFInfo
- Publication number
- CN201953803U CN201953803U CN201020673607.3U CN201020673607U CN201953803U CN 201953803 U CN201953803 U CN 201953803U CN 201020673607 U CN201020673607 U CN 201020673607U CN 201953803 U CN201953803 U CN 201953803U
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- CN
- China
- Prior art keywords
- rod member
- locking framework
- rotating shaft
- revolute joint
- locked position
- 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 - Fee Related
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 229920003023 plastic Polymers 0.000 claims description 20
- 239000004033 plastic Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47D—FURNITURE SPECIALLY ADAPTED FOR CHILDREN
- A47D1/00—Children's chairs
- A47D1/002—Children's chairs adjustable
Landscapes
- Pivots And Pivotal Connections (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The utility model relates to a rotation joint and a children dining chair with same. The rotation joint comprises a first rod piece and a second rod piece, wherein one end of the second rod piece is rotationally connected with one end of the first rod piece by a first rotary shaft, a locking mechanism with a locking position and an unlocking position is arranged between the first rod piece and the second rod piece and used for locking the relative positions of the first rod piece and the second rod piece; the locking mechanism comprises a tooth slot, a first spacing end, a slide piece, wherein the tooth slot is arranged on one end of the first rod piece; the first spacing end is arranged on one end of the first rod piece; the slide piece is rotationally arranged on one end of the second rod piece only along the axial lead direction of the first rotary shaft, a tooth block is arranged on the slide piece and deviates from a spacing bulge of the first rotary shaft, and the locking mechanism is provided with the locking position and the unlocking position. When the locking mechanism is positioned in the locking position, the tooth block is inserted into the tooth slot, the spacing bulge is clamped between the first spacing end and the second rod piece, and when the children dining chair is extruded by the external force, the spacing bulge has a stronger spacing effect, so the children dining chair is safer in use.
Description
Technical field
The utility model relates to a kind of revolute joint and has the children dinning chair of this revolute joint.
Background technique
Revolute joint of the prior art, comprise first rod member, second rod member that one end and an end of described first rod member are connected rotatedly by first rotating shaft, be provided with locking framework between described first rod member and described second rod member with locked position and unlocked position with both relative position lockings, common described locking framework comprises first teeth groove that is opened on described first rod member, be opened in second teeth groove on described second rod member, be arranged at the tooth piece between described first teeth groove and described second teeth groove slidably, described locking framework has locked position and unlocked position, when described locking framework is positioned under the locked position, described tooth piece is between described first teeth groove and described second teeth groove, when described locking framework is positioned under the unlocked position, described tooth piece is positioned at described first teeth groove fully or described tooth piece is positioned at described second teeth groove fully, when locking framework is positioned under the locked position, be subjected to big external force extruding between first rod member and second rod member and can make described tooth piece slip teeth, thereby make the locking framework release, have potential safety hazard.
The model utility content
A technical problem to be solved in the utility model provides a kind of revolute joint.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of revolute joint with expanded position and folding position, comprise first rod member, second rod member that one end and an end of described first rod member are connected rotatedly by first rotating shaft, be provided with locking framework between described first rod member and described second rod member with locked position and unlocked position with both relative position lockings, described locking framework comprises the teeth groove that is opened on first rod member, one end, be arranged at first positive stop end on described first rod member one end, only can be slidingly arranged in the slider on described second rod member one end along the direction of axis line of described first rotating shaft, has the tooth piece on the described slider, the spacing preiection that departs from described first rotating shaft, described locking framework has locked position and unlocked position, when described locking framework is under the locked position, described tooth piece is inserted in the described teeth groove, described spacing preiection is located between described first positive stop end and described second rod member, when described locking framework is in the unlocked position down, described tooth piece and described teeth groove are separated, and the described spacing preiection and the described first spacing end are separated.
In some embodiments, described teeth groove and described tooth piece depart from described first rotating shaft respectively.
In some embodiments, described locking framework comprises that also the described locking framework that makes that is arranged between described slider and described second rod member stably is positioned at the elastic component under the locked position.
In some further mode of execution, described locking framework also comprises the operation piece that makes described locking framework be converted to unlocked position by locked position, described operation piece is arranged on second rod member slidably along the direction of axis line of described first rotating shaft, when described locking framework is converted to by locked position in the process of unlocked position, described operation piece and described slider are inconsistent.
In some embodiments, described first rotating shaft is between described tooth piece and described spacing preiection.
In some embodiments, the distance between described spacing preiection and described first rotating shaft is less than the distance between described tooth piece and described first rotating shaft.
In some embodiments, described first rod member comprises the first rod member body, be fixed in the first rod member working of plastics of an end of the described first rod member body, described second rod member comprises the second rod member body, be fixed in the second rod member working of plastics of an end of the described second rod member body, the described first rod member working of plastics is connected by described first rotating shaft rotatedly with the described second rod member working of plastics, described slider is arranged on the described second rod member working of plastics slidably, and described teeth groove and described first positive stop end are positioned on the described first rod member working of plastics.
In some embodiments, be provided with position-limit mechanism between described first rod member and described second rod member, described position-limit mechanism comprises second positive stop end that is arranged on described first rod member, when described second positive stop end and described second rod member were inconsistent, described locking framework was changed between locked position and unlocked position.
Another technical problem to be solved in the utility model provides a kind of children dinning chair.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of children dinning chair that comprises above any described revolute joint of technological scheme, described children dinning chair comprises the dining chair frame, is arranged on the seat mechanism on the described dining chair frame, described dining chair frame comprises described first rod member, described second rod member, described first rotating shaft is positioned at the top of described dining chair frame, have the seat joint on described first rod member or on described second rod member, described seat mechanism is connected with described seat joint.
In some embodiments, scope of the present utility model is not limited to the technological scheme that the particular combinations of above-mentioned technical characteristics forms, and also should contain simultaneously by above-mentioned technical characteristics or its equivalent feature to carry out combination in any and other technological scheme of forming.The technical characteristics that disclosed (but being not limited to) has a similar functions among for example above-mentioned feature and the application is replaced mutually and technological scheme of forming etc.
Because technique scheme utilization, the utility model compared with prior art has following advantage: locking framework is positioned under the locked position, the tooth piece is inserted in the teeth groove, spacing preiection is located between first positive stop end and second rod member, when being subjected to the external force extruding, the position-limiting action that spacing preiection plays is stronger, uses safer.
Description of drawings
Accompanying drawing 1 is the plan view of revolute joint;
Accompanying drawing 2 is the side view of revolute joint;
Accompanying drawing 4 is the B-B place sectional view (locking framework is positioned under the unlocked position) of accompanying drawing 2;
Accompanying drawing 6 is the A-A place sectional view (locking framework is positioned under the unlocked position) of accompanying drawing 1;
Accompanying drawing 7 is the exploded view of revolute joint.
Wherein: 1, first rod member; 2, first rotating shaft; 3, second rod member; 5, spacing preiection; 6, teeth groove; 7, tooth piece; 8, slider; 9, first positive stop end; 10, second positive stop end; 11, elastic component; 12, operation piece; 13, the first rod member body; 14, the first rod member working of plastics; 15, the second rod member body; 16, the second rod member working of plastics.
Embodiment
Do not have diagram, a kind of children dinning chair comprises the dining chair frame, is arranged on the seat mechanism on the described dining chair frame, and described dining chair frame comprises a kind of revolute joint with expanded position and folding position.
Shown in accompanying drawing 1-accompanying drawing 7, described revolute joint comprises first rod member 1, second rod member 3 that one end and an end of described first rod member 1 are connected rotatedly by first rotating shaft 2, be provided with locking framework between described first rod member 1 and described second rod member 3 with locked position and unlocked position with both relative position lockings, described locking framework comprises the teeth groove 6 that is opened on first rod member, 1 one ends, be arranged at first positive stop end 9 on described first rod member 1 one ends, only can be slidingly arranged in the slider 8 on described second rod member 3 one ends along the direction of axis line of described first rotating shaft 2, has tooth piece 7 on the described slider 8, the spacing preiection 5 that departs from described first rotating shaft 2, described locking framework has locked position and unlocked position, when described locking framework is under the locked position, described tooth piece 7 is inserted in the described teeth groove 6, described spacing preiection 5 is located between described first positive stop end 9 and described second rod member 3, when described locking framework is in the unlocked position down, described tooth piece 7 is separated with described teeth groove 6, and described spacing preiection 5 is separated with 9 ones of described first positive stop ends.
There is not diagram, described first rotating shaft 2 is positioned at the top of described dining chair frame, have the seat joint on described first rod member 1, described seat mechanism is connected with described seat joint, also can be to have described seat joint on described second rod member 3.
Shown in accompanying drawing 3-accompanying drawing 6, described teeth groove 6 departs from described first rotating shaft 2 respectively with described tooth piece 7.Described first rotating shaft 2 is between described tooth piece 7 and described spacing preiection 5.Distance between described spacing preiection 5 and described first rotating shaft 2 is less than the distance between described tooth piece 7 and described first rotating shaft 2.
Shown in accompanying drawing 5, accompanying drawing 6, described locking framework comprises that also the described locking framework that makes that is arranged between described slider 8 and described second rod member 3 stably is positioned at the elastic component 11 under the locked position.
Shown in accompanying drawing 1, accompanying drawing 5-accompanying drawing 7, described locking framework also comprises the operation piece 12 that makes described locking framework be converted to unlocked position by locked position, described operation piece 12 is arranged on second rod member 3 slidably along the direction of axis line of described first rotating shaft 2, when described locking framework is converted to by locked position in the process of unlocked position, described operation piece 12 is inconsistent with described slider 8.
Shown in each accompanying drawing, described first rod member 1 comprises the first rod member body 13, be fixed in the first rod member working of plastics 14 of an end of the described first rod member body 13, described second rod member 3 comprises the second rod member body 15, be fixed in the second rod member working of plastics 16 of an end of the described second rod member body 15, the described first rod member working of plastics 14 is connected by described first rotating shaft 2 rotatedly with the described second rod member working of plastics 16, described slider 8 is arranged on the described second rod member working of plastics 16 slidably, and described teeth groove 6 is positioned on the described first rod member working of plastics 14 with described first positive stop end 9.
Shown in accompanying drawing 3, accompanying drawing 4, accompanying drawing 7, be provided with position-limit mechanism between described first rod member 1 and described second rod member 3, described position-limit mechanism comprises second positive stop end 10 that is arranged on described first rod member 1, when described second positive stop end 10 and described second rod member 3 were inconsistent, described locking framework was changed between locked position and unlocked position.
Operating process: locking framework is converted in the process of unlocked position by locked position, press described operation piece 12, overcome the elastic force of elastic component 11, described slider 8 slides, described tooth piece 7 breaks away from described teeth groove 6, described spacing preiection 5 breaks away from described first positive stop end 9, the locking framework release, and first rod member 1 rotates relative to second rod member 3 around first rotating shaft 2;
Locking framework is converted in the process of locked position by unlocked position, it is inconsistent to rotate first rod member, 1 to second positive stop end 10 and second rod member 3, at this moment, tooth piece 7 is aimed at teeth groove 6, spacing preiection 5 is aimed at first positive stop end 9, and under the effect of the elastic force of elastic component 11, tooth piece 7 inserts in the teeth groove 6, the spacing preiection 5 and first positive stop end 9 are inconsistent, the locking framework locking.
The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of being done according to the utility model spirit change or modify, and all should be encompassed within the protection domain of the present utility model.
Claims (9)
1. revolute joint with expanded position and folding position, comprise first rod member (1), second rod member (3) that one end and an end of described first rod member (1) are connected rotatedly by first rotating shaft (2), be provided with locking framework between described first rod member (1) and described second rod member (3) with locked position and unlocked position with both relative position lockings, it is characterized in that: described locking framework comprises the teeth groove (6) that is opened on first rod member (1) one end, be arranged at first positive stop end (9) on described first rod member (1) one end, only can be slidingly arranged in the slider (8) on described second rod member (3) one ends along the direction of axis line of described first rotating shaft (2), has tooth piece (7) on the described slider (8), the spacing preiection (5) that departs from described first rotating shaft (2), described locking framework has locked position and unlocked position, when described locking framework is under the locked position, described tooth piece (7) is inserted in the described teeth groove (6), described spacing preiection (5) is located between described first positive stop end (9) and described second rod member (3), when described locking framework is in the unlocked position down, described tooth piece (7) is separated with described teeth groove (6), and described spacing preiection (5) is separated with described first positive stop end (9) portion.
2. revolute joint according to claim 1 is characterized in that: described teeth groove (6) departs from described first rotating shaft (2) respectively with described tooth piece (7).
3. revolute joint according to claim 1 is characterized in that: described locking framework comprises that also the described locking framework that makes that is arranged between described slider (8) and described second rod member (3) stably is positioned at the elastic component (11) under the locked position.
4. revolute joint according to claim 3, it is characterized in that: described locking framework also comprises the operation piece (12) that makes described locking framework be converted to unlocked position by locked position, described operation piece (12) is arranged on second rod member (3) slidably along the direction of axis line of described first rotating shaft (2), when described locking framework is converted to by locked position in the process of unlocked position, described operation piece (12) is inconsistent with described slider (8).
5. revolute joint according to claim 1 is characterized in that: described first rotating shaft (2) is positioned between described tooth piece (7) and the described spacing preiection (5).
6. revolute joint according to claim 1 is characterized in that: the distance between described spacing preiection (5) and described first rotating shaft (2), and less than the distance between described tooth piece (7) and described first rotating shaft (2).
7. revolute joint according to claim 1, it is characterized in that: described first rod member (1) comprises the first rod member body (13), be fixed in the first rod member working of plastics (14) of an end of the described first rod member body (13), described second rod member (3) comprises the second rod member body (15), be fixed in the second rod member working of plastics (16) of an end of the described second rod member body (15), the described first rod member working of plastics (14) is connected by described first rotating shaft (2) rotatedly with the described second rod member working of plastics (16), described slider (8) is arranged on the described second rod member working of plastics (16) slidably, and described teeth groove (6) is positioned on the described first rod member working of plastics (14) with described first positive stop end (9).
8. revolute joint according to claim 1, it is characterized in that: be provided with position-limit mechanism between described first rod member (1) and described second rod member (3), described position-limit mechanism comprises second positive stop end (10) that is arranged on described first rod member (1), when described second positive stop end (10) and described second rod member (3) were inconsistent, described locking framework was changed between locked position and unlocked position.
9. children dinning chair that comprises above any described revolute joint of claim, it is characterized in that: described children dinning chair comprises the dining chair frame, is arranged on the seat mechanism on the described dining chair frame, described dining chair frame comprises described first rod member (1), described second rod member (3), described first rotating shaft (2) is positioned at the top of described dining chair frame, described first rod member (1) go up or described second rod member (3) on have the seat joint, described seat mechanism is connected with described seat joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020673607.3U CN201953803U (en) | 2010-12-22 | 2010-12-22 | Rotation joint and children dining chair with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020673607.3U CN201953803U (en) | 2010-12-22 | 2010-12-22 | Rotation joint and children dining chair with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201953803U true CN201953803U (en) | 2011-08-31 |
Family
ID=44497913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020673607.3U Expired - Fee Related CN201953803U (en) | 2010-12-22 | 2010-12-22 | Rotation joint and children dining chair with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201953803U (en) |
-
2010
- 2010-12-22 CN CN201020673607.3U patent/CN201953803U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20110831 Termination date: 20191222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |