CN213683624U - Hinge structure with long service life and no oil - Google Patents
Hinge structure with long service life and no oil Download PDFInfo
- Publication number
- CN213683624U CN213683624U CN202022201472.7U CN202022201472U CN213683624U CN 213683624 U CN213683624 U CN 213683624U CN 202022201472 U CN202022201472 U CN 202022201472U CN 213683624 U CN213683624 U CN 213683624U
- Authority
- CN
- China
- Prior art keywords
- shaft core
- core hole
- hinge
- hole
- sleeve
- 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.)
- Active
Links
- 239000004033 plastic Substances 0.000 claims abstract description 44
- 238000003466 welding Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 description 9
- 238000013016 damping Methods 0.000 description 8
- 239000004677 Nylon Substances 0.000 description 4
- 229920001778 nylon Polymers 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 241001417935 Platycephalidae Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Images
Landscapes
- Pivots And Pivotal Connections (AREA)
Abstract
The utility model belongs to the technical field of hinges, in particular to a long-life oilless hinge structure, which comprises a first hinge piece, a second hinge piece and a shaft core, wherein the first hinge piece is provided with a first connecting part with a first shaft core hole, the second hinge piece is provided with a second connecting part with a second shaft core hole, and the shaft core is arranged in the first shaft core hole and the second shaft core hole; a first bearing sleeve is arranged between the first shaft core hole and the shaft core, a second bearing sleeve is arranged between the second shaft core hole and the shaft core, and a POM plastic sleeve sleeved outside the shaft core is further arranged in the first shaft core hole and/or the second shaft core hole. Compared with the prior art, the utility model discloses a setting up of first bearing housing and second bearing housing can improve the concentricity, and increase of service life through the setting of POM plastic sheath, can improve the use of hinge and feel, and through the ingenious design of sealing the crew cut, can prevent again that the condition that the hinge turned around from taking place.
Description
Technical Field
The utility model belongs to the technical field of the hinge, especially, relate to a long-life oilless hinge structure.
Background
Most hinges circulating in the market adopt hinge piece inner holes (shaft core holes) to be directly matched with a shaft core, the lubricating effect is achieved by adding damping oil, the friction coefficient is reduced, and therefore a certain service life is achieved. However, due to the limitation of the hinge shaft core hole machining process, the inner hole generally has an ellipse phenomenon, and the roundness and concentricity of the inner hole cannot be guaranteed, so that the contact area between the shaft core and the shaft core hole is small, the stress is uneven, and only damping oil is added to fill the relative gap between the shaft core and the shaft core hole, so that the lubricating effect is achieved. But after using a certain number of times, along with the wearing and tearing of hinge and atress extrusion, damping oil can flow through the gap, and coefficient of friction increases this moment, and over time, the hinge can send the abnormal sound, and life also can reduce thereupon.
In order to deal with the influence of damping oil on the hinge after oil leakage, a plurality of nylon sleeves are added on the shaft core to control the limitation of the processing technology. However, under special circumstances, when a fire disaster occurs, the nylon sleeve in the hinge can be burnt, and the hinge can be displaced and deformed due to the absence of the nylon sleeve, so that the door leaf cannot be opened due to serious consequences.
And present hinge is felt relatively poor, and customer experience is relatively poor, specifically exactly when the hinge is opened certain angle under the exogenic action, still can rock under the action of gravity, can't satisfy high-end customer's demand. The requirements of high-end customers cannot be met.
In addition, the closed flat heads at two ends of the shaft core of a plurality of hinges are directly riveted, the hinge rolling position is obtained by shaping, the hinge is used for a long time, the rolling position can generate deformation, the closed flat heads and the rolling inner hole are not matched to be loose at the moment, the shaft core is not axially fixed in the hinge shaft hole, if one end of the closed flat head falls, the shaft core can naturally fall off, so that the phenomenon of turning around is called, and the hinge is directly scattered.
In view of this, the utility model aims at providing a long-life oilless hinge structure, it is through ingenious structural design, can increase the lifting surface area of axle core and hole, need not to add damping oil again and reduce the wearing and tearing between axle core and the hole, and the high concentricity of hinge has been guaranteed to the axial, the footpath is responsible for rotating the atress through using the bearing on each joint, thereby can the greatly increased hinge life, and the nylon cover that its used has wear-resisting and elasticity speciality, can improve the hinge and open and shut and feel, and do not influence the life of hinge.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: to prior art's not enough, and provide a long-life oilless hinge structure, it is through ingenious structural design, can increase the lifting surface area of axle core and hole, need not to add damping oil again and reduce the wearing and tearing between axle core and the hole, and the high concentricity of hinge has been guaranteed to the axial, it is responsible for rotating the atress through using the bearing on each joint to upwards, thereby can the greatly increased hinge life, and the POM plastic sheath that its used has wear-resisting and elasticity speciality, can improve the hinge and open and shut and feel, and do not influence the life of hinge.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a hinge structure with long service life and no oil comprises a first hinge piece, a second hinge piece and a shaft core, wherein a first connecting part with a first shaft core hole is arranged on the first hinge piece, a second connecting part with a second shaft core hole is arranged on the second hinge piece, and the shaft core penetrates through the first shaft core hole and the second shaft core hole; a first bearing sleeve is arranged between the first shaft core hole and the shaft core, a second bearing sleeve is arranged between the second shaft core hole and the shaft core, and a POM plastic sleeve sleeved outside the shaft core is further arranged in the first shaft core hole and/or the second shaft core hole.
First connecting portion and second connecting portion are the circle of rolling up position promptly, and it is formed through the steel sheet circle of rolling up, because of the processing technology limitation, lead to not 100% circle, but can have ellipse or irregular shape phenomenon, put the bearing housing in the axle core hole of circle of rolling up position, can improve the concentricity greatly to make the atress even, prolong the life of hinge. The POM plastic sleeve has high strength, rigidity and elasticity, in other words, the POM plastic sleeve has the unique elasticity, high hardness, high rigidity and excellent abrasion resistance.
As the utility model discloses the improvement of long-life oilless hinge structure, first bearing housing with the smooth rigid bearing housing in circle is to the second bearing housing, and is adjacent first connecting portion with it locates to be provided with the cover between the second connecting portion the outside bearing of axle core, first axle core hole with first bearing housing interference fit, second axle core hole with second bearing housing interference fit. When the POM plastic sleeve is arranged in the first shaft core hole or the second shaft core hole, the sum of the heights of the first bearing shaft sleeve and the POM plastic sleeve is equal to the height of the first shaft core hole outside the first bearing shaft sleeve, and the sum of the heights of the second bearing sleeve and the POM plastic sleeve is equal to the height of the second shaft core hole outside the second bearing shaft sleeve.
Through increasing first bearing housing, second bearing housing and POM plastic housing for first axle core hole, second axle core hole circularity reach highly uniform, and each axle core hole concentricity also guarantees unanimously, makes the fit clearance between axle core and the bearing housing hole reduce, has increaseed the lifting surface area of axle core and bearing housing hole, and because of the bearing housing hole is smooth, bearing housing hole concentricity is good, need not to add damping oil again and has reduced the wearing and tearing between axle core and the bearing housing hole. The high concentricity of the hinge has been guaranteed in the axial, and the footpath is responsible for rotating the atress through using the bearing on each joint to can greatly increased the life of hinge, POM plastic sheath has wear-resisting and elasticity peculiarity, can improve the hinge and open and shut and feel, receives the exogenic action when this hinge, POM plastic sheath's setting can be stabilized at certain angle with it, and the hinge that does not set up POM plastic sheath then can rock, and POM plastic sheath's setting does not influence the life of hinge moreover.
As an improvement of the long-life oilless hinge structure of the present invention, the POM plastic sleeve is disposed on the first bearing sleeve and/or the top and/or the bottom of the second bearing sleeve.
As an improvement of the long-life oilless hinge structure of the present invention, the first connecting portion and the second connecting portion are alternately sleeved on the outside of the shaft core.
As an improvement of the long-life oilless hinge structure, the hinge structure further comprises a closed flat head, an inner hole is formed in the closed flat head, and the inner hole is in interference fit with the tail end of the shaft core; the outer surface of the connecting end of the closed flat head is knurled, and the connecting end of the closed flat head is embedded into the first spindle hole and is in interference fit with the first connecting part. Such duplicate protection just can effectually prevent to close dropping of crew cut, guarantees the long-term normal use of hinge.
As the utility model discloses the improvement of long-life oilless hinge structure, first connecting portion with seal crew cut interference fit's seam position and handle through the welding, increase strength to make the position opening part of book circle can seamless joint, when the hinge atress, can guarantee that the open position can not take place deformation, guarantee concentricity increase of service life.
That is to say, the utility model discloses in, seal the crew cut and adopt knurling type shape, and seal a hole of crew cut increase for inside the axle core can partially stretch into and seal crew cut, axle core, first hinge piece and second hinge piece installation completion back through interference fit, can ensure the fastness of hinge, both ends seal the crew cut this moment, the axle core fuses, realizes the restraint of each other, can significantly reduce the emergence of the condition of turning round.
Preferably, the POM plastic sleeve is only added on the first hinge plate or the second hinge plate, when special conditions (fire) are met, the POM plastic sleeve is damaged, the mechanical performance of the hinge is not affected, the stress of the whole hinge structure is still uniform, and the use is not affected.
Compared with the prior art, the utility model discloses a setting up of first bearing housing and second bearing housing can improve the concentricity, and increase of service life through the setting of POM plastic sheath, can improve the use of hinge and feel, and through the ingenious design of sealing the crew cut, can prevent again that the condition that the hinge turned around from taking place. In addition, through carrying out the welding processing to first connecting portion and the seam position of closing crew cut interference fit, increase strength to make the position opening part of book circle can seamless joint, make and close crew cut and first connecting portion interference fit more firm, and guarantee the concentricity, when the hinge atress, can guarantee that the opening position can not take place deformation phenomenon, increase of service life.
Drawings
Fig. 1 is a schematic view of the exploded structure of the present invention.
Fig. 2 is a sectional structure view of the present invention.
Fig. 3 is a perspective view of the present invention (one of the closed flat is opened).
Detailed Description
As shown in fig. 1 to 3, the utility model provides a hinge structure without oil with long service life, including first hinge piece 1, second hinge piece 2 and axle core 3, first connecting portion 4 with first axle core hole 41 is provided on first hinge piece 1, second connecting portion 5 with second axle core hole 51 is provided on second hinge piece 2, axle core 3 is arranged in first axle core hole 41 and second axle core hole 51; a first bearing sleeve 6 is arranged between the first shaft core hole 41 and the shaft core 3, a second bearing sleeve 7 is arranged between the second shaft core hole 51 and the shaft core 3, and a POM plastic sleeve 8 sleeved outside the shaft core 3 is further arranged in the first shaft core hole 41 and/or the second shaft core hole 51. In this embodiment, the first hinge sheet 1 has three first connecting portions 4, that is, the first hinge sheet 1 is a three-leaf hinge sheet, and the second hinge sheet 2 has two second connecting portions 5, that is, the second hinge sheet 2 is a two-leaf hinge sheet. Of course, the utility model discloses be applicable to the hinge piece that has other number connecting portion equally, like a page hinge piece, four pages of hinge pieces, five pages of hinge pieces etc.. Also, in the present embodiment, the POM plastic jacket 8 is disposed within the second spindle hole 51.
First connecting portion 3 and second connecting portion 4 are the circle of rolling up position promptly, and it is formed through the steel sheet circle of rolling up, because of the processing technology limitation, lead to not 100% circle, but can have ellipse or irregular shape phenomenon, puts the bearing housing in the axle core hole of circle of rolling up position, can improve the concentricity greatly to make the atress even, prolong the life of hinge. The POM plastic sleeve 8 has high strength, rigidity and elasticity, in other words, the POM plastic sleeve 8 has the specific elasticity, high hardness, high rigidity and excellent abrasion resistance.
The first bearing sleeve 6 and the second bearing sleeve 7 are rigid bearing sleeves with smooth inner circles, a bearing 9 sleeved outside the shaft core 3 is arranged between the adjacent first connecting portion 3 and the second connecting portion 5, the first shaft core hole 41 is in interference fit with the first bearing sleeve 6, and the second shaft core hole 51 is in interference fit with the second bearing sleeve 7. The POM plastic sleeve 8 is arranged above and/or below the first bearing sleeve 6 and/or the second bearing sleeve 7. The first connecting parts 3 and the second connecting parts 4 are alternately sleeved outside the shaft core 2.
When the POM plastic sleeve 8 is arranged in the first core hole 41 or the second core hole 51, the sum of the heights of the first bearing sleeve 6 and the POM plastic sleeve 8 is equal to the height of the first core hole 41 outside the first bearing sleeve, and the sum of the heights of the second bearing sleeve 7 and the POM plastic sleeve 8 is equal to the height of the second core hole 51 outside the second bearing sleeve, i.e., in the axial direction, the first bearing sleeve 6 and the POM plastic sleeve 8 completely fill the corresponding first core hole 41, and the second bearing sleeve 7 and the POM plastic sleeve 8 completely fill the corresponding second core hole 51.
In this embodiment, the POM plastic cover 8 is disposed in the second spindle hole 51, and when a special condition (fire) occurs, the POM plastic cover 8 is damaged, but the mechanical performance of the hinge is not affected, and the whole structure of the hinge is stressed uniformly and has no effect on use. And the POM plastic sleeve 8 is positioned below the first bearing sleeve 6, the sum of the heights of the first bearing sleeve 6 and the POM plastic sleeve 8 is equal to the height of the first spindle hole 41 positioned outside the first bearing sleeve, i.e. in the axial direction, the first bearing sleeve 6 and the POM plastic sleeve 8 completely fill the corresponding first spindle hole 41. The bearing 9 sets up to 4, and the upper and lower both sides of bearing 9 are first connecting portion 3 and second connecting portion 4 respectively, or are second connecting portion 4 and first connecting portion 3 respectively.
Through increasing first bearing housing 6, second bearing housing 7 and POM plastic sheath 8 for first axle core hole 41, second axle core hole 51 circularity reach highly uniform, and each axle core hole concentricity also guarantees unanimously, makes the fit clearance between axle core 2 and the bearing housing hole reduce, has increaseed the lifting surface area of axle core 2 and bearing housing hole, and because of the bearing housing hole is smooth, the bearing housing hole concentricity is good, need not to add damping oil again and has reduced the wearing and tearing between axle core 2 and the bearing housing hole. The high concentricity of hinge has been guaranteed in the axial, radially is responsible for rotating the atress through using bearing 9 on each joint, thereby can the greatly increased life of hinge, POM plastic sheath 8 has wear-resisting and elasticity peculiarity, can improve the hinge and open and shut and feel, receive the exogenic action when this hinge, POM plastic sheath 8 set up and can be stabilized at certain angle with it, and the hinge that does not set up POM plastic sheath 8 then can rock, and POM plastic sheath 8's setting does not influence the life of hinge moreover.
The hinge structure further comprises a closed flat head 10, an inner hole is formed in the closed flat head 10, and the inner hole is in interference fit with the tail end of the shaft core 2. The outer surface of the connecting end of the closed flat head 10 is knurled, and the connecting end of the closed flat head 10 is embedded in the first spindle hole 41 and is in interference fit with the first connecting part 3. Namely, the inside of the closed flat head 10 is tightly connected with the shaft core 2, and the outside of the closed platform 10 is embedded into the first shaft core hole 41, so that the falling of the closed flat head 10 can be effectively prevented by double protection, and the long-term normal use of the hinge is ensured.
That is to say, the utility model discloses in, seal crew cut 10 and adopt the knurling type shape, and seal crew cut 10 and increase a hole for inside axle core 3 can partially stretch into and seal crew cut 10, axle core 3, first hinge piece 1 and second hinge piece 2 installation completion back, can ensure the fastness of hinge, both ends seal crew cut 10 this moment, axle core 3 fuses, realizes the restraint of each other, can significantly reduce the emergence of the condition of turning round.
The seam position of first connecting portion 3 and closed crew cut 10 interference fit is through the processing of welding, increases intensity to make the position opening part of book circle can seamless joint, when the hinge atress, can guarantee that the opening position can not take place the deformation phenomenon, guarantee the concentricity, increase of service life.
In a word, the utility model discloses a setting up of first bearing housing 6 and second bearing housing 7 can improve the concentricity, and increase of service life through the setting of POM plastic sheath 8, can improve the use of hinge and feel, and through the ingenious design of sealing crew cut 10, can prevent again that the condition that the hinge turned around from taking place. In addition, the welding treatment is carried out on the seam part of the first connecting part 3 in interference fit with the closed flat head 10, the concentricity can be improved, and the service life is prolonged.
Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.
Claims (10)
1. A hinge structure with long service life and no oil comprises a first hinge piece, a second hinge piece and a shaft core, wherein a first connecting part with a first shaft core hole is arranged on the first hinge piece, a second connecting part with a second shaft core hole is arranged on the second hinge piece, and the shaft core penetrates through the first shaft core hole and the second shaft core hole; the method is characterized in that: a first bearing sleeve is arranged between the first shaft core hole and the shaft core, a second bearing sleeve is arranged between the second shaft core hole and the shaft core, and a POM plastic sleeve sleeved outside the shaft core is further arranged in the first shaft core hole and/or the second shaft core hole.
2. The long life oil-free hinge structure of claim 1, wherein: the first bearing sleeve and the second bearing sleeve are both rigid bearing sleeves with smooth inner circles.
3. The long life oil-free hinge structure of claim 1, wherein: the POM plastic sleeve is arranged above and/or below the first bearing sleeve and/or the second bearing sleeve.
4. The long life oil-free hinge structure of claim 1, wherein: the first shaft core hole is in interference fit with the first bearing sleeve, and the second shaft core hole is in interference fit with the second bearing sleeve.
5. The long life oil-free hinge structure of claim 1, wherein: and a bearing sleeved outside the shaft core is arranged between the adjacent first connecting part and the second connecting part.
6. The long life oil-free hinge structure of claim 1, wherein: the first connecting portion and the second connecting portion are alternately sleeved outside the shaft core.
7. The long life oil-free hinge structure of claim 1, wherein: the hinge structure further comprises a closed flat head, an inner hole is formed in the closed flat head, and the inner hole is in interference fit with the tail end of the shaft core.
8. The long life oil-free hinge structure of claim 7, wherein: the outer surface of the connecting end of the closed flat head is knurled, and the connecting end of the closed flat head is embedded into the first spindle hole and is in interference fit with the first connecting part.
9. The long life oil-free hinge structure of claim 8, wherein: and the seam part of the first connecting part in interference fit with the closed flat head is subjected to welding treatment.
10. The long life oil-free hinge structure of claim 1, wherein: when the POM plastic sleeve is arranged in the first shaft core hole or the second shaft core hole, the sum of the heights of the first bearing shaft sleeve and the POM plastic sleeve is equal to the height of the first shaft core hole outside the first bearing shaft sleeve, and the sum of the heights of the second bearing sleeve and the POM plastic sleeve is equal to the height of the second shaft core hole outside the second bearing shaft sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022201472.7U CN213683624U (en) | 2020-09-30 | 2020-09-30 | Hinge structure with long service life and no oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022201472.7U CN213683624U (en) | 2020-09-30 | 2020-09-30 | Hinge structure with long service life and no oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213683624U true CN213683624U (en) | 2021-07-13 |
Family
ID=76751954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022201472.7U Active CN213683624U (en) | 2020-09-30 | 2020-09-30 | Hinge structure with long service life and no oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213683624U (en) |
-
2020
- 2020-09-30 CN CN202022201472.7U patent/CN213683624U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10316559B2 (en) | Door hinge assembly | |
| US20060156512A1 (en) | Single axis hinge | |
| CN213683624U (en) | Hinge structure with long service life and no oil | |
| CN219262082U (en) | Rotating structure and hinge with same | |
| US4097959A (en) | Load supporting hinge structure | |
| CN213774936U (en) | Anti-turning hinge structure | |
| DE102008053248A1 (en) | Rolling bearing cage | |
| CN208919093U (en) | A kind of plastic cage that can control addition lubricant | |
| TW504549B (en) | Guide sleeve | |
| CN207420281U (en) | A kind of mute oil-free hinge | |
| JPS6230403B2 (en) | ||
| CN218347166U (en) | Rotating structure and hinge with same | |
| CN208457026U (en) | A kind of combined type deep groove ball bearing | |
| CN207333449U (en) | A kind of automatic aligning biserial deep groove ball bearing | |
| CN106246718A (en) | A kind of needle roller lining and auxiliary assembling structure thereof | |
| CN205401424U (en) | Smooth bearing device is rolled to shape of preapring for an unfavorable turn of events | |
| CN205001450U (en) | High abrasion silence chain | |
| CN213838167U (en) | Hinge structure with long service life and adjustable gap | |
| CN107084192B (en) | Bidirectional propulsion rolling bearing | |
| CN217054766U (en) | Protective door hinge device | |
| CN220769956U (en) | Polyester wear-resistant shaft sleeve | |
| CN218408279U (en) | Rubber plate spring bushing | |
| CN204852013U (en) | Six oil wedge bearings | |
| CN210318178U (en) | Impact-resistant bearing bush | |
| CN107339036A (en) | A kind of Jing Yin oil-free hinge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |