CN207100993U - A kind of external tooth type sofa hinge - Google Patents
A kind of external tooth type sofa hinge Download PDFInfo
- Publication number
- CN207100993U CN207100993U CN201720224513.XU CN201720224513U CN207100993U CN 207100993 U CN207100993 U CN 207100993U CN 201720224513 U CN201720224513 U CN 201720224513U CN 207100993 U CN207100993 U CN 207100993U
- Authority
- CN
- China
- Prior art keywords
- connector
- semicircular gear
- bullet part
- shaped bullet
- clutch
- 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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- Pivots And Pivotal Connections (AREA)
Abstract
The utility model discloses a kind of external tooth type sofa hinge, including for connecting the first connector of sofa and for connecting the second connector rested the head on, first connector and the second connector are hinged by jointed shaft, the end of first connector is provided with semicircular gear, the tooth form of the semicircular gear is ratchet-like tooth form, the U-shaped bullet part of flexible deformability is connected with second connector, second connector is provided with the first connecting hole and the clutch hole for connecting U-shaped bullet part both ends respectively, clutch hole is corresponding with the tooth slot position of semicircular gear, one end of U-shaped bullet part is rotating shaft end and is hinged in the first connecting hole, the other end of U-shaped bullet part is movable end, through clutch hole and insert in the teeth groove of semicircular gear.The utility model forms gear adjusting mechanism using U-shaped bullet part and semicircular gear, has the advantages that structural strength is high, service life is long.
Description
Technical field
It the utility model is related to a kind of hinge, and in particular to a kind of external tooth type sofa hinge.
Background technology
Existing sofa with hinge typically use sheet jump ring and locking plate, for the ease of elastic deformation, the jump ring and
The thinner thickness of locking plate, intensity are relatively low, it is impossible to bear larger power, be not used on the larger sofa headrest of weight, use model
Enclose and be restricted, and structural strength is low, after long-term use, the problems such as elastic force declines, parts deform easily occurs, influences
Service life.
The content of the invention
For overcome the deficiencies in the prior art, the utility model provides a kind of external tooth of the high service life length of structural strength
Formula sofa hinge.
Technical scheme is used by the utility model solves its technical problem：
A kind of external tooth type sofa hinge, including the first connector and second for connecting headrest for connecting sofa connect
Fitting, first connector and the second connector are hinged by jointed shaft, and the end of first connector is provided with half
Circular gear, the tooth form of the semicircular gear is ratchet-like tooth form, and flexible deformation is connected with second connector
The U-shaped bullet part of ability, second connector are provided with the first connecting hole and the clutch hole for connecting U-shaped bullet part both ends respectively, clutch
Hole is corresponding with the tooth slot position of semicircular gear, and one end of U-shaped bullet part for rotating shaft end and is hinged in the first connecting hole, U-shaped
The other end of bullet part is movable end, through clutch hole and is inserted in the teeth groove of semicircular gear.
In the utility model, the clutch hole is irregular shape, and its one end stretches into semicircular gear teeth groove to be oblique
The guide groove of position, the other end are the clutch slot tangent with semicircular gear outside circle.
In the utility model, the U-shaped bullet part is bent to form by a metal bar and is bent into U-shaped in the middle part of it.
In the utility model, one end of the semicircular gear is provided with pushes away the movable end of U-shaped bullet part out of guide groove
First to clutch slot is raised, and the other end of the semicircular gear is provided with shifts the movable end of U-shaped bullet part onto out of clutch slot
The second of guide groove is raised.
In the utility model, the outer cup of the semicircular gear and U-shaped bullet part is provided with case.
The beneficial effects of the utility model are：The utility model forms gear regulation using U-shaped bullet part and semicircular gear
Mechanism, because the tooth form of semicircular gear is ratchet-like tooth form, the movable end of U-shaped bullet part slides on semicircular gear so that
It relative can only be rotated forward between first connector and the second connector, reset can not be inverted, movable end often slips over a tooth then
A gear is formed, after moving to terminal, after moving to terminal, the end bosses of semicircular gear stir the activity of U-shaped bullet part
End is moved into the clutch slot in clutch hole, after the movable end of U-shaped bullet part leaves the teeth groove of semicircular gear, the first connector
Relative it can be inverted with the second connector, it is achieved thereby that reset, it is simple in construction, ingenious；Further, it is made of by metal bar
U-shaped bullet part, have the advantages that structural strength is high, service life is long.
Brief description of the drawings
The utility model is further illustrated with embodiment below in conjunction with the accompanying drawings：
Fig. 1 is the structural representation of the present embodiment；
Fig. 2 is that Fig. 1 removes the topology view after case；
Structural representation when Fig. 3 is clutch state；
Fig. 4 is the structural representation of U-shaped bullet part；
Fig. 5 is the structural representation using the first connector during internal-gear type structure；
Fig. 6 is the structural representation using the second connector during internal-gear type structure.
Embodiment
Referring to figs. 1 to Fig. 4, a kind of external tooth type sofa hinge that the present embodiment is provided, including for connecting the of sofa
A connection piece 1 and the second connector 2 for connecting headrest, the connector 2 of the first connector 1 and second pass through jointed shaft 3
It is hinged, the connector 2 of the first connector 1 and second is made up of two panels clamp respectively, the two panels clamp of the second connector 2
By the centre that is clamped in of the first connector 1, the end of first connector 1 is provided with semicircular gear 4, the semicircular gear
4 tooth form is ratchet-like tooth form, is connected with the U-shaped bullet part 5 of flexible deformability on second connector 2, described
Two connectors 2 are provided with the first connecting hole 6 and the clutch hole 7 for connecting the U-shaped both ends of bullet part 5 respectively, clutch hole 7 and semicircular gear 4
Tooth slot position it is corresponding, rotating shaft end is in one end of U-shaped bullet part 5 and is hinged in the first connecting hole 6, the other end of U-shaped bullet part 5
For movable end, through clutch hole 7 and insert in the teeth groove of semicircular gear 4.When semicircular gear 4 rotates, the work of U-shaped bullet part 5
Moved end is slided in the teeth groove of semicircular gear 4, because tooth form is ratchet-like tooth form, relative can only be rotated forward between the two,
Movable end often slips over a tooth and then forms a gear.
As preferred embodiment, the clutch hole 7 is irregular shape, and its one end stretches into semicircular gear to be oblique
The guide groove of 4 tooth slot positions, the other end is the clutch slot tangent with the outside circle of semicircular gear 4, in regulation stall, U-shaped bullet
The movable end of part 5 slidably reciprocates in the presence of semicircular gear 4 in guide groove.One end of the semicircular gear 4 is provided with
The movable end of U-shaped bullet part 5 is shifted to the first projection 9 of clutch slot out of guide groove onto, the other end of the semicircular gear 4 is provided with
The movable end of U-shaped bullet part 5 is shifted onto to the second projection 10 of guide groove out of clutch slot, it is living when movable end is in clutch slot
Moved end is disengaged from state with semicircular gear 4, and the first connector 1 and the second connector 2 can rotate relatively freely.
To ensure enough elastic force, the U-shaped bullet part 5 is bent to form by a metal bar and is bent into U in the middle part of it
Shape.To protect inner components not receive external action, the outer cup of the semicircular gear 4 and U-shaped bullet part 5 is provided with case 8.
In the utility model, the semicircular gear 4 can be not only external tooth form shape, can also be internal tooth ring-shaped,
As shown in accompanying drawing 5,6, first connector 1 is provided with internal gear 11 and arc groove 12, and the tooth form of internal gear 11 is ratchet
Shape, the first connecting hole 6 and clutch hole 7 are corresponding with the position of internal gear 11 and arc groove 12, the movable end of U-shaped bullet part 5
Internal gear 11 and arc groove 12 are corresponded to respectively with rotating shaft end.The structure and external tooth type have identical technique effect, are
Its equivalent technology scheme.
Preferred embodiments of the present utility model are the foregoing is only, as long as realizing the utility model with essentially identical means
The technical scheme of purpose is belonged within the scope of protection of the utility model.
Claims (5)
1. a kind of external tooth type sofa hinge, including for connecting the first connector of sofa（1）With second for connection headrest
Connector（2）, first connector（1）With the second connector（2）Pass through jointed shaft（3）It is hinged, it is characterised in that：Institute
State the first connector（1）End be provided with semicircular gear（4）, the semicircular gear（4）Tooth form be ratchet-like tooth form, institute
State the second connector（2）On be connected with the U-shaped bullet part of flexible deformability（5）, second connector（2）Provided with respectively
Connect U-shaped bullet part（5）First connecting hole at both ends（6）With clutch hole（7）, clutch hole（7）With semicircular gear（4）Teeth groove position
Put corresponding, U-shaped bullet part（5）One end for rotating shaft end and be hinged on the first connecting hole（6）It is interior, U-shaped bullet part（5）The other end be
Movable end, through clutch hole（7）And insert semicircular gear（4）Teeth groove in.
A kind of 2. external tooth type sofa hinge according to claim 1, it is characterised in that：The clutch hole（7）To be irregular
Shape, its one end stretch into semicircular gear to be oblique（4）The guide groove of tooth slot position, the other end are and semicircular gear（4）Tooth
The tangent clutch slot of tip circle.
A kind of 3. external tooth type sofa hinge according to claim 1, it is characterised in that：The U-shaped bullet part（5）By one
Metal bar is bent to form and its middle part is bent into U-shaped.
A kind of 4. external tooth type sofa hinge according to claim 2, it is characterised in that：The semicircular gear（4）One
End is provided with U-shaped bullet part（5）Movable end shift the first raised of clutch slot onto out of guide groove（9）, the semicircular gear（4）
The other end be provided with U-shaped bullet part（5）Movable end shift the second raised of guide groove onto out of clutch slot（10）.
A kind of 5. external tooth type sofa hinge according to claim 1, it is characterised in that：The semicircular gear（4）With it is U-shaped
Bullet part（5）Outer cup be provided with case（8）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720224513.XU CN207100993U (en) | 2017-03-08 | 2017-03-08 | A kind of external tooth type sofa hinge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720224513.XU CN207100993U (en) | 2017-03-08 | 2017-03-08 | A kind of external tooth type sofa hinge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207100993U true CN207100993U (en) | 2018-03-16 |
Family
ID=61596448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720224513.XU Expired - Fee Related CN207100993U (en) | 2017-03-08 | 2017-03-08 | A kind of external tooth type sofa hinge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207100993U (en) |
-
2017
- 2017-03-08 CN CN201720224513.XU patent/CN207100993U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180316 Termination date: 20190308 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |