CN210363201U

CN210363201U - Caster rotating structure and caster

Info

Publication number: CN210363201U
Application number: CN201920703185.0U
Authority: CN
Inventors: 李梓杰
Original assignee: Zhongshan Supo Caster Manufacturing Co ltd
Current assignee: Zhongshan Supo Caster Manufacturing Co ltd
Priority date: 2019-05-15
Filing date: 2019-05-15
Publication date: 2020-04-21
Anticipated expiration: 2029-05-15

Abstract

The utility model discloses a truckle rotating-structure and truckle, including bottom plate, bearing housing, support frame, first pivot, first wheel, second wheel and second pivot, the bearing housing is fixed the bottom of bottom plate forms the bottom plate subassembly, the bearing is impressed in the bearing housing, the bottom plate is equipped with run through the bottom plate and with the first round first rotary-axis first rotary-hole of looks adaptation, the upper portion of support frame is equipped with run through the support frame and with the second rotary-hole of first round of looks adaptation, first pivot is followed vertical direction and is upwards passed in proper order from the following bottom the bottom plate subassembly links into an organic whole with the support frame behind second rotary-hole, bearing, the first rotary-hole, the lower part rotatable installation of support frame the second pivot, first wheel, second wheel overlap respectively and establish in the second pivot. The caster wheel rotating structure has the characteristics of flexible rotation, long service life and stable walking.

Description

Caster rotating structure and caster

Technical Field

The utility model relates to a truckle technical field especially relates to a truckle rotating-structure and truckle.

Background

The caster is a common mechanical accessory, is mainly used for being mounted at the bottom of an object to facilitate the movement of the object, and is widely applied to the objects needing to be moved conveniently, such as furniture, logistics carts, goods shelves, instruments and the like. When the object moves and turns, the rotating structure of the caster is required to operate to turn the object. The main disadvantages of the currently available casters are: firstly, the steering is not flexible during rotation; secondly, the rotating structure is easy to wear and short in service life, and the rotation is not flexible and labor-consuming after the wear occurs; thirdly, the caster wheel is provided with a single wheel, and only a single contact point with the ground is formed, so that the caster wheel deflects when walking.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, one of the purposes of the utility model is to provide a caster rotating structure with flexible rotation, long service life and stable walking.

The utility model discloses an one of the purpose adopts following technical scheme to realize:

truckle revolution mechanic, including bottom plate, bearing housing, support frame, first pivot, first wheel, second wheel and second pivot, the bearing housing is fixed the bottom of bottom plate forms the bottom plate subassembly, the bearing is impressed in the bearing housing, the bottom plate be equipped with run through the bottom plate and with the first bull shaft first bull hole of looks adaptation, the upper portion of support frame is equipped with run through the support frame and with the second bull hole of first bull shaft looks adaptation, first pivot is followed vertical direction and is upwards passed in proper order from the end with bottom plate subassembly and support frame after second bull hole, bearing, first bull hole, the rotatable installation in lower part of support frame the second pivot, first wheel, second wheel overlap respectively and establish in the second pivot.

Further, the support frame is riveted and fixed with the bearing through the first rotating shaft.

Further, the bearing sleeve is fixed on the bottom plate in a welding mode.

Further, the support frame includes support frame panel and two mounting panels, and two mounting panel symmetries are installed the below of support frame panel is formed with the rotation region between two mounting panels, the second pivot is rotationally installed between two mounting panels, first wheel, second wheel all overlap and are established in the second pivot and be located rotate in the region.

Further, the caster rotating structure further comprises a rotating steel sleeve, and the first wheel and the second wheel are sleeved on the second rotating shaft through the rotating steel sleeve.

Furthermore, the upper surface of the support frame panel is provided with a positioning groove for placing the bearing sleeve, the central position of the positioning groove is provided with an annular step protruding upwards, and the second rotary hole is formed in the central position of the annular step.

Furthermore, the lower extreme of first pivot is equipped with and is used for with spacing portion that annular step contradicts.

Further, the bearing is a ball bearing.

Further, the upper surface of the bottom plate is provided with a downward-concave annular groove.

A second object of the present invention is to provide a caster.

The second purpose of the utility model is realized by adopting the following technical scheme:

the caster comprises the caster rotating structure.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model discloses a support frame passes through the bearing and realizes using first pivot to carry out the free rotation in vertical direction as the axis, owing to adopt the bearing as rotating-structure, makes the support frame rotate in a flexible way, difficult wearing and tearing, long service life. First wheel and second wheel are realized using the second pivot to rotate as the axis on the support frame through the second pivot, owing to adopt two wheels as the contact point of truckle at ground walking, increase the area of contact of truckle and ground, make the truckle walking steady.

Drawings

Fig. 1 is a schematic overall view of a caster wheel rotating structure and a caster wheel provided by an embodiment of the present invention;

fig. 2 is a cross-sectional view of a caster wheel rotating structure and a caster wheel provided by an embodiment of the present invention;

fig. 3 shows an exploded view of a caster wheel rotating structure and a caster wheel provided by an embodiment of the present invention;

fig. 4 shows a schematic view of a support frame provided by an embodiment of the present invention.

In the figure: 1. a first rotating shaft; 11. a limiting part; 2. a base plate; 20. a first rotary hole; 21. an annular groove; 3. a bearing; 4. a bearing housing; 5. a support frame; 50. a support frame panel; 51. mounting a plate; 52. mounting holes; 53. a positioning groove; 54. an annular step; 55. a second rotary hole; 56. a rotation region; 6. a second rotating shaft; 7. a first wheel; 8. a second wheel; 9. rotating the steel sleeve; 10. and a nut.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "horizontal", "vertical", "top", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "one," "another," and the like are used to distinguish similar elements, and these terms and other similar terms are not intended to limit the scope of the present invention.

In the description of the present invention, it should be noted that unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. Corresponding reference numerals are used throughout the figures to indicate corresponding or corresponding elements (e.g., elements identified as "1 XX" and "2 XX" are structurally identical and functionally similar).

As shown in fig. 1-4, for the utility model provides a caster wheel rotating structure, this caster wheel rotating structure includes bottom plate 2, bearing 3, bearing housing 4, support frame 5, first pivot 1, first wheel 7, second wheel 8 and second pivot 6, bearing housing 4 is fixed the bottom of bottom plate 2 forms the bottom plate subassembly, bearing 3 impresses in the bearing housing 4, bottom plate 2 is equipped with the first hole 20 that changes that runs through bottom plate 2 and with first pivot 1 looks adaptation, the upper portion of support frame 5 is equipped with the second hole 55 that changes that runs through support frame 5 and with first pivot 1 looks adaptation, first pivot 1 is followed along vertical direction and is upwards passed in proper order behind second hole 55, bearing 3, first hole 20 and connect into an organic whole with bottom plate subassembly and support frame 5, rotatable the installing in the lower part of support frame 5 second pivot 6, first wheel 7, The second wheels 8 are respectively sleeved on the second rotating shafts 6.

On the structure foundation, the bearing sleeve 4 is fixed on the bottom plate 2 in a welding mode to form a bottom plate assembly, and the axial movement of the bearing 3 can be overcome by adopting the bearing sleeve 4; the bearing 3 is fixed in the bearing sleeve 4 by adopting a stamping riveting mode to form a rotating assembly; the support frame 5 is riveted and fixed with the bearing 3 in the bottom plate assembly through the first rotating shaft 1 to form a support frame assembly; the first wheel 7 and the second wheel 8 are mounted on the corresponding mounting holes 52 of the support frame 5 through the second rotating shaft 6, so that the integral assembly of the caster is completed.

In this embodiment, the support frame 5 is implemented to use the first rotating shaft 1 as the axis to rotate freely in the vertical direction through the bearing 3, and the bearing 3 is adopted as the rotating structure, so that the support frame 5 rotates flexibly, is not easy to wear and has long service life. First wheel 7 and second wheel 8 realize using second pivot 6 to rotate as the axis on support frame 5 through second pivot 6, adopt two wheels as the contact point of truckle walking on ground, increase the area of contact of truckle and ground, make the truckle walking steady.

In a preferred embodiment, the first rotating shaft 1 of the present embodiment is preferably a rivet, and the second rotating shaft 6 is preferably a screw, wherein a nut 10 is sleeved on one end of the screw after the first wheel 7 and the second wheel 8 are mounted.

Specifically, the bearing 3 of the present embodiment is preferably a ball bearing 3, which enables the support frame 5 to rotate more flexibly and has a function of reducing noise.

As a preferred embodiment, the supporting frame 5 includes a supporting frame panel 50 and two mounting plates 51, the two mounting plates 51 are symmetrically mounted below the supporting frame panel 50, a rotation area 56 is formed between the two mounting plates 51, the second rotating shaft 6 is rotatably mounted between the two mounting plates 51, and the first wheel 7 and the second wheel 8 are both sleeved on the second rotating shaft 6 and located in the rotation area 56. This embodiment supports first wheel 7 and second wheel 8 through setting up support frame 5, and it should be explained that, the support frame 5 of this embodiment only is as a strutting arrangement's realization, and in fact, structures such as scooter, walker, small-size folding bicycle's front fork or rear wheel carrier, as long as be suitable for the utility model discloses a truckle revolution mechanic all can regard as strutting arrangement.

Specifically, the caster wheel rotating structure further comprises a rotating steel sleeve 9, and the first wheel 7 and the second wheel 8 are sleeved on the second rotating shaft 6 through the rotating steel sleeve 9. First wheel 7 and second wheel 8 adopt to rotate steel bushing 9 cover and establish on second pivot 6, can make first wheel 7 and second wheel 8 rotate smoothly, make first wheel 7 and second wheel 8 difficult wearing and tearing simultaneously, prolong the life of first wheel 7 and second wheel 8.

Specifically, the upper surface of the support frame panel 50 is provided with a positioning groove 53 for placing the bearing sleeve 4, the center of the positioning groove 53 is provided with an annular step 54 protruding upwards, and the second rotating hole 55 is provided at the center of the annular step 54. By providing the positioning groove 53, the bearing sleeve 4 can be positioned, the weight of the support frame 5 can be reduced, and the strength of the support frame panel 50 can be improved by the annular step 54.

More specifically, the lower end of the first rotating shaft 1 is provided with a limiting portion 11 for abutting against the annular step 54. Thus, the first rotation shaft 1 can be prevented from being arbitrarily shifted in the axial direction.

As a preferred embodiment, the upper surface of the bottom plate 2 is provided with a downwardly concave annular groove 21. By providing the annular groove 21 in the base plate 2, the weight of the base plate 2 can be reduced, and the overall weight of the caster can be reduced.

In addition, the utility model also provides a truckle, this truckle includes foretell truckle revolution mechanic.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. Truckle revolution mechanic, its characterized in that includes bottom plate, bearing housing, support frame, first pivot, first wheel, second wheel and second pivot, the bearing housing is fixed the bottom of bottom plate forms the bottom plate subassembly, the bearing is impressed in the bearing housing, the bottom plate be equipped with run through the bottom plate and with the first round first rotating shaft first rotating hole of looks adaptation, the upper portion of support frame is equipped with run through the support frame and with the second rotating hole of first round looks adaptation, first pivot is followed vertical direction and is upwards passed in proper order from the end with bottom plate subassembly and support frame after second rotating hole, bearing, first rotating hole link into an integrated entity, the rotatable installation in lower part of support frame the second pivot, first wheel, second wheel overlap respectively and establish in the second pivot.

2. The caster wheel turning structure of claim 1, wherein the support frame is riveted to the bearing through the first rotating shaft.

3. The caster wheel turning structure as claimed in claim 1, wherein the bearing housing is fixed to the base plate by welding.

4. The caster wheel rotating structure as claimed in claim 1, wherein the supporting frame comprises a supporting frame panel and two mounting plates, the two mounting plates are symmetrically mounted below the supporting frame panel, a rotating area is formed between the two mounting plates, the second rotating shaft is rotatably mounted between the two mounting plates, and the first wheel and the second wheel are both sleeved on the second rotating shaft and located in the rotating area.

5. The caster wheel turning structure of claim 4 further comprising a steel turning sleeve, wherein the first wheel and the second wheel are both sleeved on the second shaft by the steel turning sleeve.

6. The caster wheel turning structure of claim 4, wherein the top surface of the panel of the supporting frame is provided with a positioning groove for placing the bearing housing, the positioning groove is provided with an annular step protruding upwards at a central position, and the second turning hole is provided at a central position of the annular step.

7. The caster rotating structure as claimed in claim 6, wherein a stopper for abutting against the annular step is provided at a lower end of the first rotating shaft.

8. The caster wheel turning structure as claimed in claim 1, wherein the bearings are ball bearings.

9. The caster rotating structure as claimed in claim 1, wherein the upper surface of the base plate is provided with a downwardly concave annular groove.

10. A caster comprising the caster rotating structure according to any one of claims 1 to 9.