CN201953804U - Rotational joint and child dining chair with same - Google Patents
Rotational joint and child dining chair with same Download PDFInfo
- Publication number
- CN201953804U CN201953804U CN201120001742.8U CN201120001742U CN201953804U CN 201953804 U CN201953804 U CN 201953804U CN 201120001742 U CN201120001742 U CN 201120001742U CN 201953804 U CN201953804 U CN 201953804U
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- CN
- China
- Prior art keywords
- rod member
- revolute joint
- positive stop
- rod piece
- locking framework
- 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
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- 230000007246 mechanism Effects 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 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
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- 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
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- Pivots And Pivotal Connections (AREA)
Abstract
The utility model relates to a rotational joint and a child dining chair with the same. The rotational joint comprises a first rod piece and a second rod piece, wherein one end part of the second rod piece is rotatably connected with one end part of the first rod piece through a first rotating shaft, and a locking mechanism for locking the relative position of the first rod piece and the second rod piece is arranged between the first rod piece and the second rod piece, and comprises a first limit end arranged on the first rod piece, and a slide piece with a locking part which is arranged on the second rod piece in a sliding way only along the length direction of the second rod piece; and the locking mechanism also comprises an elastic piece allowing the locking mechanism to be stably positioned below a locking position, and a limit mechanism is arranged between the first rod piece and the second rod piece. The locking mechanism is positioned below the locking position, and the locking part is clamped between the first limit end and the second rod piece, accordingly, when the rotational joint is extruded by external force, the locking part plays a stronger limit role, and the rotation joint is safer to use, and has a simpler structure, stronger rigidity and cheaper cost.
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 first positive stop end that is arranged on described first rod member, only can be slidingly arranged in the slider on described second rod member along the length direction of described second rod member with sticking department, when described locking framework is under the locked position, described sticking department is located between described first positive stop end and described second rod member, described revolute joint is under the expanded position, when described locking framework is in the unlocked position down, described sticking department and described first positive stop end are separated, this moment, described revolute joint was in the folding position or described revolute joint can be changed between expanded position and folding position, described locking framework also comprises makes described locking framework stably be positioned at the elastic component under the locked position, be provided with between described first rod member and described second rod member when described revolute joint be in the other end of the other end of forbidding described first rod member under the expanded position and described second rod member relative away from position-limit mechanism.
In some embodiments, described slider is a sliding sleeve, and described slider is set on described second rod member.
In some embodiments, described second its length direction of rod member upper edge offers chute, and described slider is provided with projection, and described projection is arranged in the described chute slidably.
In some further mode of execution, described elastic component is arranged between described projection and described second rod member.
In some embodiments, described position-limit mechanism comprises second positive stop end that is arranged on described first rod member, when described locking framework is positioned under the locked position, described second positive stop end and described second rod member are inconsistent, and described second rod member is between described sticking department and described second positive stop end.
In some embodiments, described first positive stop end departs from the movement locus that described second rod member and described first rod member rotate around described first rotating shaft.
In some embodiments, described first rod member comprises the first rod member body, is fixed in the first rod member link with rotation space of an end of the described first rod member body, described first positive stop end is arranged on the described first rod member link, and an end of described first rotating shaft and described second rod member is positioned at described rotation space.
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.
Scope of the present utility model is not limited in 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, described sticking department is located between described first positive stop end and described second rod member, when being subjected to the external force extruding, the position-limiting action that sticking department plays is stronger, uses safelyr, and structure is simpler, rigidity is stronger, and cost is more cheap.
Description of drawings
Accompanying drawing 3 is the side view of revolute joint;
Accompanying drawing 7 is the schematic representation of children dinning chair.
Wherein: 1, first rod member; 2, first rotating shaft; 3, second rod member; 4, first positive stop end; 5, sticking department; 6, slider; 7, elastic component; 8, chute; 9, projection; 10, second positive stop end; 11, the first rod member body; 12, rotation space; 13, the first rod member link; 14, dining chair frame; 15, seat mechanism.
Embodiment
As shown in Figure 7, a kind of children dinning chair with revolute joint of the following stated, described children dinning chair comprise dining chair frame 14, are arranged on the seat mechanism 15 on the described dining chair frame 14.Revolute joint is applied on the dining chair frame 14, described dining chair frame 14 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 14, have the seat joint on described first rod member 1, described seat mechanism 15 is connected with described seat joint.
Shown in each accompanying drawing, a kind of revolute joint, 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, described locking framework comprises first positive stop end 4 that is arranged on described first rod member 1, only can be slidingly arranged in the slider with sticking department 56 on described second rod member 3 along the length direction of described second rod member 3, as shown in Figure 4, when described locking framework is under the locked position, described sticking department 5 is located between described first positive stop end 4 and described second rod member 3, at this moment, described revolute joint is under the expanded position, shown in accompanying drawing 5-accompanying drawing 6, when described locking framework is in the unlocked position down, described sticking department 5 is separated with described first positive stop end 4, at this moment, described revolute joint is in the folding position or described revolute joint can be changed between expanded position and folding position, described locking framework also comprises makes described locking framework stably be positioned at the elastic component 7 under the locked position, be provided with between described first rod member 1 and described second rod member 3 when described revolute joint be in the other end of the other end of forbidding described first rod member 1 under the expanded position and described second rod member 2 relative away from position-limit mechanism.
Shown in each accompanying drawing, described slider 6 is a sliding sleeve, and described slider 6 is set on described second rod member 3.
Shown in accompanying drawing 4-accompanying drawing 6, its length direction of described second rod member 3 upper edges offers chute 8, and described slider 6 is provided with projection 9, and described protruding 9 are arranged in the described chute 8 slidably.Described elastic component 7 be arranged at described protruding 9 and described second rod member 3 between.
Described position-limit mechanism comprises second positive stop end 10 that is arranged on described first rod member 1, when described locking framework is positioned under the locked position, described second positive stop end 10 is inconsistent with described second rod member 3, and described second rod member 3 is between described sticking department 5 and described second positive stop end 10.
Described first positive stop end 4 departs from described second rod member 3 and the movement locus of described first rod member 1 around described first rotating shaft, 2 rotations, when described locking framework is in the unlocked position down, second rod member 3 around first rotating shaft 2 when first rod member 1 rotates, can be not inconsistent with described first positive stop end 4.
Described first rod member 1 comprises the first rod member body 11, is fixed in the first rod member link 13 with rotation space 12 of an end of the described first rod member body 11, described first positive stop end 4 is arranged on the described first rod member link 13, described first rotating shaft 2 is positioned at described rotation space 12 with an end of described second rod member 3, and described second positive stop end 10 is arranged on the described first rod member link 13.
Operating process: locking framework is converted in the process of unlocked position by locked position, overcome the elastic force of elastic component 7, to lower slider slider 6, make sticking department 5 and described first positive stop end 4 be separated, locking framework release this moment, second rod member 3 can rotate relative to first rod member 1 around first rotating shaft 2;
Locking framework is converted in the process of locked position by unlocked position, discharge described slider 6, under the effect of elastic component 7, slider 6 resets upwards sliding, sticking department 5 is along with slider 6 moves up together at this moment, and to inconsistent with first positive stop end 4, locking framework locks, and described second positive stop end 10 is inconsistent with described second rod member 3, and second rod member, 3 relative first rod members 1 are fixing.
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 (8)
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 first positive stop end (4) that is arranged on described first rod member (1), only can be slidingly arranged in the slider with sticking department (5) (6) on described second rod member (3) along the length direction of described second rod member (3), when described locking framework is under the locked position, described sticking department (5) is located between described first positive stop end (4) and described second rod member (3), described revolute joint is under the expanded position, when described locking framework is in the unlocked position down, described sticking department (5) is separated with described first positive stop end (4), this moment, described revolute joint was in the folding position or described revolute joint can be changed between expanded position and folding position, described locking framework also comprises makes described locking framework stably be positioned at the elastic component (7) under the locked position, be provided with between described first rod member (1) and described second rod member (3) when described revolute joint be in the other end of the other end of forbidding described first rod member (1) under the expanded position and described second rod member (2) relative away from position-limit mechanism.
2. revolute joint according to claim 1 is characterized in that: described slider (6) is a sliding sleeve, and described slider (6) is set on described second rod member (3).
3. revolute joint according to claim 1, it is characterized in that: its length direction of described second rod member (3) upper edge offers chute (8), described slider (6) is provided with projection (9), and described projection (9) is arranged in the described chute (8) slidably.
4. revolute joint according to claim 3 is characterized in that: described elastic component (7) is arranged between described projection (9) and described second rod member (3).
5. revolute joint according to claim 1, it is characterized in that: described position-limit mechanism comprises second positive stop end (10) that is arranged on described first rod member (1), when described locking framework is positioned under the locked position, described second positive stop end (10) is inconsistent with described second rod member (3), and described second rod member (3) is positioned between described sticking department (5) and described second positive stop end (10).
6. revolute joint according to claim 1 is characterized in that: described first positive stop end (4) departs from described second rod member (3) and the movement locus of described first rod member (1) around described first rotating shaft (2) rotation.
7. revolute joint according to claim 1, it is characterized in that: described first rod member (1) comprises the first rod member body (11), is fixed in the first rod member link (13) with rotation space (12) of an end of the described first rod member body (11), described first positive stop end (4) is arranged on the described first rod member link (13), and described first rotating shaft (2) is positioned at described rotation space (12) with an end of described second rod member (3).
8. children dinning chair that comprises above any described revolute joint of claim, it is characterized in that: described children dinning chair comprises dining chair frame (14), be arranged on the seat mechanism (15) on the described dining chair frame (14), described dining chair frame (14) 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 (14), described first rod member (1) upward or on described second rod member (3) has the seat joint, and described seat mechanism (15) is connected with described seat joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120001742.8U CN201953804U (en) | 2011-01-05 | 2011-01-05 | Rotational joint and child dining chair with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120001742.8U CN201953804U (en) | 2011-01-05 | 2011-01-05 | Rotational joint and child dining chair with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201953804U true CN201953804U (en) | 2011-08-31 |
Family
ID=44497914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120001742.8U Expired - Fee Related CN201953804U (en) | 2011-01-05 | 2011-01-05 | Rotational joint and child dining chair with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201953804U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148093A (en) * | 2013-03-06 | 2013-06-12 | 中国航空工业集团公司沈阳发动机设计研究所 | Hinge locking mechanism |
-
2011
- 2011-01-05 CN CN201120001742.8U patent/CN201953804U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103148093A (en) * | 2013-03-06 | 2013-06-12 | 中国航空工业集团公司沈阳发动机设计研究所 | Hinge locking mechanism |
| CN103148093B (en) * | 2013-03-06 | 2015-05-13 | 中国航空工业集团公司沈阳发动机设计研究所 | Hinge locking mechanism |
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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: 20200105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |