CN203957720U - A kind of roll wheel assembly - Google Patents
A kind of roll wheel assembly Download PDFInfo
- Publication number
- CN203957720U CN203957720U CN201420409071.2U CN201420409071U CN203957720U CN 203957720 U CN203957720 U CN 203957720U CN 201420409071 U CN201420409071 U CN 201420409071U CN 203957720 U CN203957720 U CN 203957720U
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- CN
- China
- Prior art keywords
- pivot shaft
- fastening hook
- elastic fastening
- wheel support
- cavity
- 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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Abstract
A kind of roll wheel assembly, comprise wheel support, pivot shaft, on wheel support, there is axle mounting hole, pivot shaft is arranged in axle mounting hole and rotatably coordinates with wheel support, the bottom of pivot shaft is provided with annular breach, described wheel support is provided with elastic fastening hook and cavity, described elastic fastening hook and wheel support are one-body molded, elastic fastening hook is elastic deformation in cavity, the position of elastic fastening hook and cavity is corresponding with the position of the annular breach of pivot shaft, elastic fastening hook matches with the annular breach of pivot shaft, the movement of restriction pivot shaft vertical direction, this roll wheel assembly has simple in structure, easy for installation, the feature that productive costs is low.
Description
Technical field
The utility model relates to a kind of roll wheel assembly.
Background technology
Existing roll wheel assembly mainly comprises wheel support, pivot shaft and is positioned at other members on pivot shaft top, and wheel is installed on wheel support, has axle mounting hole on wheel support, and pivot shaft is arranged in axle mounting hole, and wheel support can rotate around pivot shaft.The prior art that the wheel of realizing rotates around pivot shaft has two kinds, the firstth, by the design of similar bearing, concrete structure is that wheel support top is provided with groove for placing ball, above ball, be provided with iron wash, iron wash is connected with other members on pivot shaft top, this is the structure of early stage class bearing, and this structure tooling cost is high, not shock-resistant in actual use procedure, another kind of structure is, in the bottom of pivot shaft, annular groove is set, wheel support is provided with a pin hole, pivot shaft is arranged on after axle mounting hole, phase latch is inserted in pin hole, because latch matches with the annular groove of pivot shaft, so pivot shaft is blocked in axle mounting hole by latch, reality not only can make wheel support rotate but also can avoid pivot shaft prolapse upwards axle mounting hole around pivot shaft, but there is the defect that trouble is installed in this structure, it is larger that the rotation alerting ability of wheel support is affected by latch, so require high to the accuracy of manufacture of latch, increase productive costs.
Summary of the invention
In order to overcome the weak point of background technology, the utility model provides a kind of simple in structure, easy for installation, roll wheel assembly that productive costs is low.
The technical solution of the utility model is: a kind of roll wheel assembly, comprise wheel support, pivot shaft, on wheel support, there is axle mounting hole, pivot shaft is arranged in axle mounting hole and rotatably coordinates with wheel support, the bottom of pivot shaft is provided with annular breach, described wheel support is provided with elastic fastening hook and cavity, described elastic fastening hook and wheel support are one-body molded, elastic fastening hook is elastic deformation in cavity, the position of elastic fastening hook and cavity is corresponding with the position of the annular breach of pivot shaft, elastic fastening hook matches with the annular breach of pivot shaft, the movement of restriction pivot shaft vertical direction.
The beneficial effect of technique scheme is: pivot shaft is arranged in axle mounting hole and with wheel support and is rotatably coordinated, again by pivot shaft being rotatably mounted in wheel support with the integrated elastic fastening hook of wheel support, when installation, pivot shaft is inserted to axle mounting hole, when pivot shaft is inserted into elastic fastening hook position, pivot shaft squeezes elastic fastening hook, make elastic fastening hook elastic deformation in cavity (be elastic fastening hook gib head part in the space of cavity backward resilient movement), in the time that the annular breach on pivot shaft is inserted into elastic fastening hook position, elastic fastening hook is returned to again state of nature under the effect of elastic-restoring force, now elastic fastening hook is just entering into annular breach, thereby pivot shaft is connected in wheel support, whole installation process only need be inserted pivot shaft axle mounting hole, and without fixed pedestal axle separately again, reduce the operation of installing, pivot shaft automatically locks after inserting axle mounting hole, the installation of the assembly of whole roller just becomes very simple and quick, elastic fastening hook and wheel support are one-body molded, do not need other connecting element, so the lock function to pivot shaft that the technical program realizes is more reliable, more stable, and easy for installation, simple in structure, productive costs is low.
Further, the upper end of described elastic fastening hook is connected with wheel support, and the lower end of elastic fastening hook is unsettled in cavity, and matches with annular breach in elastic fastening hook lower end.
Further, the lower end of described elastic fastening hook is connected with wheel support, and the upper end of elastic fastening hook is unsettled in cavity, and matches with annular breach in elastic fastening hook upper end.
Further, described elastic fastening hook is provided with arc notch with the annular breach place of matching of pivot shaft, and described arc notch matches with the cylindrical outer surface of the annular indentation, there of pivot shaft.
Further, described grab is provided with ramp, and the upper surface of described ramp is oblique, described oblique towards the axis direction of pivot shaft and towards the inclination of pivot shaft insertion wheel support direction.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Brief description of the drawings
The roll wheel assembly integral structure schematic diagram that Fig. 1 provides for the utility model.
Fig. 2 is the right elevation of Fig. 1.
Fig. 3 is the A-A cutaway view of Fig. 2.
Fig. 4 is the birds-eye view of wheel support in Fig. 1.
Fig. 5 is the structural representation of the second embodiment of the present utility model.
Description of reference numerals: 1, wheel support; 2, pivot shaft; 3, axle mounting hole; 4, elastic fastening hook; 5, cavity; 6, ramp; 7, annular breach; 8, arc notch.
Detailed description of the invention
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.
Fig. 1 by reference to the accompanying drawings, Fig. 2, Fig. 3, the description of Fig. 4, the first embodiment that the utility model provides: a kind of roll wheel assembly, comprise wheel support 1, pivot shaft 2, on wheel support 1, there is axle mounting hole 3, pivot shaft 2 is arranged in axle mounting hole 3 and rotatably coordinates with wheel support 1, the bottom of pivot shaft 2 is provided with annular breach 7, described wheel support 1 is provided with elastic fastening hook 4 and cavity 5, described elastic fastening hook 4 is one-body molded with wheel support 1, elastic fastening hook 4 is in the interior elastic deformation of cavity 5, the position of elastic fastening hook 4 and cavity 5 is corresponding with the position of the annular breach 7 of pivot shaft 2, elastic fastening hook 4 matches with the annular breach 7 of pivot shaft 2, the movement of restriction pivot shaft 2 vertical directions, avoid pivot shaft 2 prolapse upwards axle mounting holes 3, the upper end of described elastic fastening hook 4 is connected with wheel support 1, the lower end of elastic fastening hook 4 is unsettled in cavity 5, one end is connected on wheel support 1, the other end is unsettled in cavity 5, when such structure makes elastic fastening hook 4 with wheel support 1 integrative-structure, also there is elastically-deformable performance, and match with annular breach 7 in elastic fastening hook 4 lower ends, described elastic fastening hook 4 is provided with arc notch 8 with annular breach 7 places of matching of pivot shaft 2, described arc notch 8 matches with the cylindrical outer surface at annular breach 7 places of pivot shaft 2, can increase like this area of elastic fastening hook 4 and annular breach 7 clampings, make elastic fastening hook 4 more reliable to the locking effect of pivot shaft 2, described elastic fastening hook 4 is provided with ramp 6, the upper surface of described ramp 6 is oblique, described oblique towards the axis direction of pivot shaft 2 and towards pivot shaft 2 insert wheel support 1 direction tilt, when this structure facilitates pivot shaft 2 to insert axle mounting hole 3 downwards, pivot shaft 2 is squeezed on the ramp 6 that elastic fastening hook 4 is oblique, squeeze push away elastic fastening hook 4 backward deformation move, the technical program not only can realize wheel support 1 and rotated but also can avoid the also convenient roll wheel assembly of installing of pivot shaft 2 prolapse upwards wheel supports 1 around pivot shaft 2, when realizing original function, save installation procedure, reduce productive costs.
Fig. 1 by reference to the accompanying drawings, Fig. 2, Fig. 4, the description of Fig. 5, the second embodiment that the utility model provides: a kind of roll wheel assembly, comprise wheel support 1, pivot shaft 2, on wheel support 1, there is axle mounting hole 3, pivot shaft 2 is arranged in axle mounting hole 3 and rotatably coordinates with wheel support 1, the bottom of pivot shaft 2 is provided with annular breach 7, described wheel support 1 is provided with elastic fastening hook 4 and cavity 5, described elastic fastening hook 4 is one-body molded with wheel support 1, elastic fastening hook 4 is in the interior elastic deformation of cavity 5, the position of elastic fastening hook 4 and cavity 5 is corresponding with the position of the annular breach 7 of pivot shaft 2, elastic fastening hook 4 matches with the annular breach 7 of pivot shaft 2, the movement of restriction pivot shaft 2 vertical directions, the lower end of described elastic fastening hook 4 is connected with wheel support 1, the upper end of elastic fastening hook 4 is unsettled in cavity 5, and match with annular breach 7 in elastic fastening hook 4 upper ends, described elastic fastening hook 4 is provided with arc notch 8 with annular breach 7 places of matching of pivot shaft 2, described arc notch 8 matches with the cylindrical outer surface at annular breach 7 places of pivot shaft 2, described grab 4 is provided with ramp 6, the upper surface of described ramp 6 is and inserts oblique of wheel support 1 direction towards the axis direction of pivot shaft 2 and along pivot shaft 2.
Embodiment mono-is that with the difference of embodiment bis-embodiment mono-is connected on wheel support 1 for elastic fastening hook 4 upper ends, embodiment bis-is connected on wheel support for elastic fastening hook 4 lower ends, the technique effect of two embodiment is identical, all not only can realize wheel support 1 rotate but also can avoid the also convenient roll wheel assembly of installing of pivot shaft 2 prolapse upwards wheel supports 1 around pivot shaft 2, when realizing original function, save installation procedure, reduced productive costs.
Claims (6)
1. a roll wheel assembly, comprise wheel support (1), pivot shaft (2), on wheel support (1), there is axle mounting hole (3), pivot shaft (2) is arranged in axle mounting hole (3) and rotatably coordinates with wheel support (1), pivot shaft (2) be provided with annular breach (7), it is characterized in that: described wheel support (1) is provided with elastic fastening hook (4) and cavity (5), described elastic fastening hook (4) is one-body molded with wheel support (1), elastic fastening hook (4) elastic deformation in cavity (5), the position of elastic fastening hook (4) and cavity (5) is corresponding with the position of the annular breach (7) of pivot shaft (2), elastic fastening hook (4) matches with the annular breach (7) of pivot shaft (2), the movement of restriction pivot shaft (2) vertical direction.
2. a kind of roll wheel assembly as claimed in claim 1, it is characterized in that: the upper end of described elastic fastening hook (4) is connected with wheel support (1), the lower end of elastic fastening hook (4) is unsettled in cavity (5), and matches with annular breach (7) in elastic fastening hook (4) lower end.
3. a kind of roll wheel assembly as claimed in claim 1, it is characterized in that: the lower end of described elastic fastening hook (4) is connected with wheel support (1), the upper end of elastic fastening hook (4) is unsettled in cavity (5), and matches with annular breach (7) in elastic fastening hook (4) upper end.
4. a kind of roll wheel assembly as described in claim 1 or 2 or 3, it is characterized in that: described elastic fastening hook (4) is provided with arc notch (8) with annular breach (7) place of matching of pivot shaft (2), and described arc notch (8) matches with the cylindrical outer surface that the annular breach (7) of pivot shaft (2) is located.
5. a kind of roll wheel assembly as described in claim 1 or 2 or 3, it is characterized in that: described grab (4) is provided with ramp (6), the upper surface of described ramp (6) is oblique, described oblique towards the axis direction of pivot shaft (2) and towards the inclination of pivot shaft (2) insertion wheel support (1) direction.
6. a kind of roll wheel assembly as claimed in claim 4, it is characterized in that: described grab (4) is provided with ramp (6), the upper surface of described ramp (6) is oblique, described oblique towards the axis direction of pivot shaft (2) and towards the inclination of pivot shaft (2) insertion wheel support (1) direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420409071.2U CN203957720U (en) | 2014-07-23 | 2014-07-23 | A kind of roll wheel assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420409071.2U CN203957720U (en) | 2014-07-23 | 2014-07-23 | A kind of roll wheel assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203957720U true CN203957720U (en) | 2014-11-26 |
Family
ID=51918349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420409071.2U Expired - Fee Related CN203957720U (en) | 2014-07-23 | 2014-07-23 | A kind of roll wheel assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203957720U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110683261A (en) * | 2018-07-05 | 2020-01-14 | 飞格立塑料公司 | Device comprising a pulley and a suspension mechanism carrying the pulley |
-
2014
- 2014-07-23 CN CN201420409071.2U patent/CN203957720U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110683261A (en) * | 2018-07-05 | 2020-01-14 | 飞格立塑料公司 | Device comprising a pulley and a suspension mechanism carrying the pulley |
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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: 20141126 Termination date: 20180723 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |