CN220615380U - Caster for suitcase - Google Patents
Caster for suitcase Download PDFInfo
- Publication number
- CN220615380U CN220615380U CN202322295811.6U CN202322295811U CN220615380U CN 220615380 U CN220615380 U CN 220615380U CN 202322295811 U CN202322295811 U CN 202322295811U CN 220615380 U CN220615380 U CN 220615380U
- Authority
- CN
- China
- Prior art keywords
- wheel seat
- seat
- suitcase
- top surface
- vertical shaft
- 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.)
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Links
- 235000004443 Ricinus communis Nutrition 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 238000013016 damping Methods 0.000 claims description 11
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims 1
- 230000035939 shock Effects 0.000 abstract description 7
- 238000010521 absorption reaction Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Landscapes
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
Abstract
The utility model provides a suitcase castor, which comprises a fixed seat fixed at the bottom of a suitcase, a wheel seat arranged below the fixed seat, a roller rotatably connected to the wheel seat, a vertical shaft axially connecting the fixed seat and the wheel seat, wherein the bottom of the fixed seat extends downwards to form a lower mounting part, the top of the wheel seat extends upwards to form an upper mounting part, the upper mounting part and the lower mounting part are mutually inserted and positioned inside and outside and form a cylindrical mounting containing cavity in the inner area of the upper mounting part and the lower mounting part, a limiting table extends outwards from the middle of the vertical shaft, the limiting table is positioned in the mounting containing cavity, a plane bearing is arranged below the limiting table, the top surface and the bottom surface of the plane bearing are respectively clung to the bottom surface of the limiting table and the top surface of the wheel seat, and 360-degree free rotation of the wheel seat relative to the vertical shaft under the transmission of the plane bearing is ensured. The utility model has good structural strength, can bear larger pressure, has good rotation effect and good shock absorption effect, and is not easy to damage.
Description
Technical Field
The utility model relates to a suitcase assembly, in particular to a suitcase castor.
Background
The luggage case is an indispensable tool for people to carry articles in long-distance travel, in particular to the luggage case with casters, so that people can easily carry the luggage to various places in the journey by only slightly dragging the pull rod of the luggage case. Although casters are a key factor in making the luggage case so convenient to carry, the wheels of casters are also the most vulnerable parts of the luggage case because the wheels of the casters bear the weight of the entire luggage case and may roll over many uneven, bumpy floors.
The existing castor for the trunk comprises a roller, a wheel seat for the roller to be rotatably arranged, and a fixed seat for connecting the wheel seat and fixedly connected with the trunk. The fixing seat of the castor is fixedly connected with the suitcase, and a plurality of screws are arranged in the suitcase to the fixing seat outside the suitcase, so that the suitcase and the fixing seat are fixedly connected together. The connecting structure between the wheel seat and the fixing seat is generally provided with a fixed type connecting structure and a rotary type connecting structure, wherein the rotary type connecting structure is generally realized to freely rotate by adopting a hinged mode, sometimes the roller is clamped at one time when encountering uneven roadsides in the use process and can not freely rotate, and the roller is easily damaged due to the large pressure born by the connecting part.
Disclosure of Invention
Aiming at the problems, the utility model aims to provide the suitcase castor which has good structural strength, can bear larger pressure, has good rotation effect and good shock absorption effect and is not easy to damage.
The technical scheme of the utility model is that the suitcase castor comprises a fixed seat fixed at the bottom of the suitcase, a wheel seat arranged below the fixed seat, a roller rotatably connected to the wheel seat, a vertical shaft axially connecting the fixed seat and the wheel seat, wherein the bottom of the fixed seat extends downwards to form a lower mounting part, the top of the wheel seat extends upwards to form an upper mounting part, the upper mounting part and the lower mounting part are mutually inserted and positioned inside and outside and form a cylindrical mounting cavity in the inner area of the upper mounting part and the lower mounting part, a limit table extends outwards from the middle of the vertical shaft, the limit table is positioned in the mounting cavity, a plane bearing is arranged below the limit table, the top surface and the bottom surface of the plane bearing are respectively clung to the bottom surface of the limit table and the top surface of the wheel seat, and 360 degrees of free rotation of the wheel seat relative to the vertical shaft under the transmission of the plane bearing is ensured.
Preferably, a damping spring is arranged above the limiting table, the upper end and the lower end of the damping spring are respectively in extrusion contact with the fixed seat and the limiting table, and the bottom surface of the limiting table is attached to and tightly presses the top surface of the plane bearing under the action of the elasticity of the damping spring.
Preferably, the top of the vertical shaft penetrates through the fixing seat and then is outwards turned and riveted on the top surface of the fixing seat, or is welded on the top surface of the fixing seat or is connected on the top surface of the fixing seat through a connecting piece.
Preferably, the bottom surface of the vertical shaft is provided with an annular groove, a positioning pin is transversely arranged in the wheel seat, and the positioning pin penetrates through the annular groove and is fixed in the wheel seat and axially limits the vertical shaft.
Preferably, the planar bearing is a planar needle bearing or a planar ball bearing.
Preferably, the left side and the right side of the wheel seat are hinged with rollers.
The plane bearing is arranged between the wheel seat and the vertical shaft, and the damping spring is arranged between the fixed seat and the vertical shaft, so that the caster wheel with the structure can bear larger pressure, has good structural strength and good rotation effect and is not easy to damage.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a front view of the present utility model;
FIG. 3 is a cross-sectional view of the structure of FIG. 2 without the damper spring in the direction A-A;
FIG. 4 is a cross-sectional view of the structure of FIG. 2 with a shock absorbing spring in the direction A-A;
FIG. 5 is a schematic diagram of the connection structure of the roller, the wheel seat and the vertical shaft in the utility model;
wherein: 1-a fixing seat; 11-a lower mounting portion; 2-wheel seat; 21-an upper mounting portion; 3-a roller; 4-a vertical shaft; 41-a limiting table; 42-an annular groove; 5-installing the accommodating cavity; 6-a damping spring; 7-a planar bearing; 8-connecting piece.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 5, the utility model provides a suitcase castor, which comprises a fixed seat 1 fixed at the bottom of a suitcase, a wheel seat 2 arranged below the fixed seat 1, a roller 3 rotatably connected to the wheel seat 2, and a vertical shaft 4 axially connecting the fixed seat 1 and the wheel seat 2, wherein the bottom of the fixed seat 1 extends downwards to form a lower mounting part 11, the top of the wheel seat 2 extends upwards to form an upper mounting part 21, the upper mounting part 21 and the lower mounting part 11 are mutually inserted and positioned inwards and outwards to form a cylindrical mounting containing cavity 5 in the inner area of the two, the middle part of the vertical shaft 4 extends outwards to form a limiting table 41, the limiting table 41 is positioned in the mounting containing cavity 5, a plane bearing 7 is arranged below the limiting table 41, the top surface and the bottom surface of the plane bearing 7 are respectively clung to the bottom surface of the limiting table 41 and the top surface of the wheel seat 2, and 360 degrees of free rotation of the wheel seat 2 relative to the vertical shaft 4 under the transmission of the plane bearing 7 is ensured.
On the basis of the above scheme, as shown in fig. 4, a damping spring 6 is disposed above the limiting table 41, the upper end and the lower end of the damping spring 6 are respectively pressed against the fixing seat 1 and the limiting table 41, and under the action of the elasticity of the damping spring 6, the bottom surface of the limiting table 41 is attached to and tightly presses the top surface of the plane bearing 7.
Specifically, the top of the vertical shaft 4 passes through the fixing seat 1 and then is turned outwards to be riveted on the top surface of the fixing seat 1 or welded on the top surface of the fixing seat 1 or connected on the top surface of the fixing seat 1 through a connecting piece 8.
In addition, an annular groove 42 is formed in the bottom surface of the vertical shaft 4, and a positioning pin is transversely arranged in the wheel seat 2, passes through the annular groove 42, is fixed in the wheel seat 2 and axially limits the vertical shaft 4.
The flat bearing 7 is a flat needle bearing or a flat ball bearing.
Further, the left side and the right side of the wheel seat 2 are hinged with rollers 3.
According to the utility model, the fixed seat 1 and the wheel seat 2 are connected into an integrated structure through the vertical shaft 4, the upper part of the limit table 41 in the middle of the vertical shaft 4 realizes the shock absorption of the whole structure through the shock absorption spring 6, meanwhile, the vertical shaft 4 is pressed down to the upper seat ring of the plane bearing 7, at the moment, the lower seat ring of the plane bearing is tightly attached to the wheel seat 2, and the upper seat ring and the lower seat ring can rotate relatively freely under the action of the middle retainer and the rolling body, so that the wheel seat 2 rotates freely relative to the vertical shaft 4, 360-degree free rotation of the idler wheel 3 relative to the suitcase is realized, and meanwhile, when the trolley is pushed on a rugged road, the shock absorption spring 6 moves up and down under the stress, and the shock absorption can be effectively realized.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the utility model in any way, but any simple modification, equivalent variation or modification made to the above embodiments according to the technical principles of the present utility model still falls within the scope of the technical solutions of the present utility model.
Claims (6)
1. The utility model provides a suitcase truckle, includes fixing base (1) at suitcase bottom, sets up wheel seat (2) in fixing base (1) below, rotatable gyro wheel (3) of connecting on wheel seat (2), axial connection fixing base (1) and vertical scroll (4) of wheel seat (2), its characterized in that: the utility model discloses a wheel seat, including fixing base (1), wheel seat (2), fixing base (1), upper mounting portion (21), lower mounting portion (11), upper mounting portion (21) and lower mounting portion (11) are inserted the location each other and are formed tubular installation appearance chamber (5) in both inside regions down, spacing platform (41) are outwards extended in vertical scroll (4) middle part, spacing platform (41) are located An Zhuangrong chamber (5), are provided with plane bearing (7) below spacing platform (41), and plane bearing (7) top surface and bottom surface are hugged closely spacing platform (41) bottom surface and wheel seat (2) top surface respectively, ensure 360 free rotations of relative vertical scroll (4) of wheel seat (2) under the transmission of plane bearing (7).
2. A suitcase castor as claimed in claim 1, wherein: and a damping spring (6) is arranged above the limiting table (41), the upper end and the lower end of the damping spring (6) are respectively in extrusion contact with the fixed seat (1) and the limiting table (41), and the bottom surface of the limiting table (41) is attached to and tightly presses the top surface of the plane bearing (7) under the action of the elasticity of the damping spring (6).
3. A suitcase castor as claimed in claim 1, wherein: the top of the vertical shaft (4) passes through the fixed seat (1) and then is outwards turned and riveted on the top surface of the fixed seat (1), or is welded on the top surface of the fixed seat (1) or is connected on the top surface of the fixed seat (1) through a connecting piece (8).
4. A suitcase castor as claimed in claim 1, wherein: an annular groove (42) is formed in the bottom surface of the vertical shaft (4), a positioning pin is transversely arranged in the wheel seat (2), and the positioning pin penetrates through the annular groove (42) and is fixed in the wheel seat (2) and axially limits the vertical shaft (4).
5. A suitcase castor as claimed in claim 1, wherein: the plane bearing (7) is a plane needle bearing or a plane ball bearing.
6. A suitcase castor as claimed in claim 1, wherein: the left side and the right side of the wheel seat (2) are hinged with idler wheels (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322295811.6U CN220615380U (en) | 2023-08-24 | 2023-08-24 | Caster for suitcase |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322295811.6U CN220615380U (en) | 2023-08-24 | 2023-08-24 | Caster for suitcase |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220615380U true CN220615380U (en) | 2024-03-19 |
Family
ID=90232760
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322295811.6U Active CN220615380U (en) | 2023-08-24 | 2023-08-24 | Caster for suitcase |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220615380U (en) |
-
2023
- 2023-08-24 CN CN202322295811.6U patent/CN220615380U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |