CN217753367U

CN217753367U - Universal caster wheel mounting bracket structure easy to produce

Info

Publication number: CN217753367U
Application number: CN202222175864.XU
Authority: CN
Inventors: 吴奇颖
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-18
Filing date: 2022-08-18
Publication date: 2022-11-08
Anticipated expiration: 2032-08-18

Abstract

The utility model discloses an easy-to-produce universal caster wheel installing support structure, include: the support body for installing the truckle and arrange along the horizontal direction the internal bearing of support, the bearing cap has been installed to the upside and/or the downside of bearing, the bearing cap have the annular main part that a level set up and by the location boss portion that the periphery of annular main part formed along vertical extension, location boss portion paste and lean on the outer periphery face of bearing. The utility model discloses the casters installing support structure of easily producing comes to assemble with bearing interference fit through the location boss portion on the bearing cap to can make both keep relatively fixed, it is very convenient to assemble, can guarantee moreover that bearing cap and bearing relative position are accurate, can not misplace, also makes casters's installing support structure easily produce simultaneously, improves production efficiency.

Description

Universal caster wheel mounting bracket structure easy to produce

Technical Field

The utility model relates to a universal wheel technical field, in particular to caster installing support structure of easily producing.

Background

The caster comprises a movable caster, a fixed caster and a movable caster with a brake. Casters are commonly referred to as universal wheels, which are constructed to allow 360 degree rotation; fixed casters, also known as directional casters, have no swivel structure and cannot rotate. Two types of casters are commonly used, such as a cart having a front fixed caster and a rear movable caster adjacent to the pushing handrail.

The bearing is generally buried in the installing support of activity truckle, realizes 360 degrees rotations through bearing and pivot cooperation. At present, a mounting bracket is usually made of a general plastic material, and a bearing and the mounting bracket are integrally formed by injection molding; because the intensity of installing support is relatively poor, the truckle receives violent striking to produce the effort to the bearing in the use, can cause the bearing to take place the slope when serious, damages the installing support.

At present, there is an improved caster bracket structure in the market, for example, a universal plastic silent caster disclosed in the chinese patent No. 201520344647.6, in which annular iron sheets are disposed at the upper and lower ends of a bearing and are integrally injection molded in a cylindrical body of the plastic bracket, so as to increase the structural strength of the plastic bracket and the combination of the plastic bracket and the bearing. Although this technical scheme can be fine solution above-mentioned technical problem, its annular iron sheet is difficult for assembling with the bearing, can not make both keep relative position fixed, also can't ensure its coaxial distribution, and then brings certain trouble for the injection moulding of plastic support, influences production efficiency.

Disclosure of Invention

In order to solve the technical problem, the utility model provides an easy-to-produce's universal castor installing support structure, the bearing is very convenient with bearing cap assembly to can ensure that both relative position are accurate, the easy shaping of installing support structure improves production efficiency.

The utility model discloses a solve the technical scheme that its technical problem adopted and be: an easy-to-produce caster mounting bracket structure comprising: the support body for installing the truckle and arrange along the horizontal direction the internal bearing of support, the bearing cap has been installed to the upside and/or the downside of bearing, the bearing cap have the annular main part that a level set up and by the location boss portion that the periphery of annular main part formed along vertical extension, location boss portion paste and lean on the outer periphery face of bearing.

As a further improvement of the present invention, the bearing and the bearing cap are integrally injection molded in the assembled state in the bracket body.

As a further improvement of the present invention, the support body is coated on the bearing and the partial outer side surface of the bearing cap, and the bearing cap is clamped on the bearing.

As a further improvement of the present invention, the middle portion of the annular main body portion has a through hole coaxially distributed with the bearing, and the diameter of the through hole is larger than the outer diameter of the inner ring of the bearing and smaller than the inner diameter of the outer ring of the bearing.

As a further improvement, the bearing is connected with the bearing cap in an interference fit manner, and the upper end face and the lower end face of the bearing are supported on the corresponding annular main body part.

As a further improvement, the bearing cap is made of plastic material, and the rigidity of the bearing cap is greater than that of the support body.

As a further improvement, the support body is provided with the roating seat that is cylindric and by two relative otic placodes are extended to the bottom an organic whole of roating seat, the bearing with the bearing cap is all fixed to be set up in the roating seat, two the otic placode is used for the axle to establish the truckle.

The utility model has the advantages that:

1. the utility model provides an easy-to-produce universal caster wheel installing support structure, through all having installed the bearing cap in the upper and lower both sides of bearing, the bearing cap has annular main part and the location boss portion that forms along vertical extension by the periphery of annular main part, assembles with bearing interference fit through location boss portion to can make both keep relatively fixed, it is very convenient to assemble, can guarantee moreover that bearing cap and bearing relative position are accurate, can not misplace, improves the product percent of pass.

2. Because bearing and two bearing caps can assemble in advance to put into the mould and inject moulding and go out the support body, and form a body structure, therefore the universal caster installing support structure of this application is easily produced, and production efficiency also is showing and is improving.

3. The bearing cap can increase the structural strength of the stress point of the support body, and the acting force of the bearing when the bearing is impacted is dispersed on the bearing cap, so that the support body is prevented from being damaged, the bearing is prevented from inclining, and the service life is prolonged.

4. This application adopts this structural style's bearing cap, can increase the area of contact with the support body, has increased the structural strength that support body and bearing combine, has better crashworthiness, and is not fragile.

Drawings

FIG. 1 is a perspective view of the caster mounting bracket structure of the present invention which is easy to manufacture;

FIG. 2 is a cross-sectional view of the caster mounting bracket structure of the present invention which is easy to manufacture;

FIG. 3 is a cross-sectional view of the bearing and bearing cap assembly of the easy-to-manufacture caster mounting bracket structure of the present invention;

fig. 4 is the utility model discloses bearing cap's among the casters installing support structure perspective of easy production.

The following description is made with reference to the accompanying drawings:

1. a stent body; 101. a rotating base; 102. an ear plate; 2. a bearing; 3. a bearing cap; 301. an annular main body portion; 302. a positioning boss portion.

Detailed Description

The following description of the preferred embodiments of the present invention will be made in conjunction with the accompanying drawings.

Referring to fig. 1 to 4, the utility model provides an easy-to-produce universal caster wheel mounting bracket structure, include: the support comprises a support body 1, a bearing 2 and a bearing cover 3.

The bracket body 1 is provided with a rotating base 101 and two opposite ear plates 102 integrally extending from the bottom of the rotating base 101, and a caster is arranged between the two ear plates 102. The rotary base 101 is cylindrical, and the bearing 2 is arranged on the inner wall of the rotary base 101 along the horizontal direction; an external rotating shaft extends into the rotating base 101 and is inserted into the inner ring of the bearing 2, so that the bracket body 1 can rotate 360 degrees around the rotating shaft through the bearing 2.

The bearing caps 3 have one or two, also arranged horizontally on the inner wall of the rotary base 101, and abut against the upper and/or lower side of the bearing 2. The bearing cap 3 has a horizontally disposed annular main body portion 301 and an annular positioning boss portion 302 formed by extending the outer periphery of the annular main body portion 301 in the vertical direction, and thereby a positioning groove is formed in the bearing cap 3, the upper end or the lower end of the bearing 2 is placed in the positioning groove, and the positioning boss portion 302 abuts on the outer circumferential surface of the bearing 2.

Wherein, the internal diameter of location boss portion 302 slightly is less than the external diameter of bearing 2, through exerting certain pressure with bearing 2 impress in the constant head tank of bearing cap 3 to make the up end or the lower terminal surface of bearing 2 support and lean on annular main part 301, with the interference fit between the two of realization, thereby can make both keep relatively fixed, it is very convenient to assemble, can guarantee moreover that bearing cap 3 and bearing 2 relative position are accurate, can not misplace.

It is noted that the bearing cover 3 may be provided with only one, arranged on the upper or lower side of the bearing 2; the two bearing covers 3 can also be arranged symmetrically on the upper and lower sides of the bearing 2. Obviously, the former bearing cap 3 only has one function on only one side of the bearing 2, and does not perform the same function as the latter. Therefore, in the present embodiment, two bearing caps 3 are preferably provided and assembled to both upper and lower sides of the bearing 2 as shown in fig. 3.

Referring to fig. 2, the bearing 2 and the two bearing caps 3 are integrally injection-molded in the rotating base 101 of the bracket body 1 in an assembled state. Because bearing 2 and two bearing caps 3 can be assembled in advance to put into the mould and injection moulding goes out support body 1, and form a body structure, therefore the universal caster installing support structure of this application is easily produced, and production efficiency also is showing and is improving.

The molded bracket body 1 covers part of the upper surface and the outer circumferential surface of the upper bearing cover 3, part of the outer circumferential surface (the part between the upper and lower positioning boss portions 302) of the bearing 2, and part of the lower surface and the outer circumferential surface of the lower bearing cover 3, so that the bracket body 1 clamps the bearing 2 through the upper and lower bearing covers 3.

The bracket body 1 is made of PP plastic, the bearing cover 3 is made of plastic with certain rigidity, specifically engineering plastic is adopted, and the impact strength and rigidity of the engineering plastic are multiple times of those of the PP plastic. Consequently, through setting up bearing cap 3 in the upper and lower both sides equipartition of bearing 2 to this increases the structural strength of support body 1 stress point, when caster received violent striking, the effort that bearing 2 received was dispersed on bearing cap 3, thereby avoids causing the damage to support body 1, prevents that bearing 2 from taking place the slope, improves life.

In addition, this application adopts this structural style's bearing cap 3, can increase the area of contact with support body 1, has increased the structural strength that support body 1 and bearing 2 combine, has better crashworthiness, and is not fragile.

Referring to fig. 3, the middle portion of the annular main body 301 has a through hole coaxially distributed with the bearing 2, and the diameter of the through hole is larger than the outer diameter of the inner ring of the bearing 2 and smaller than the inner diameter of the outer ring of the bearing 2, that is, the inner circumferential wall of the annular main body 301 only horizontally extends to between the inner ring and the outer ring of the bearing 2, but does not contact with the inner ring of the bearing 2, so as to prevent the inner ring from being clamped and prevent the inner ring and the outer ring from being relatively rotated.

In the previous description, numerous specific details were set forth in order to provide a thorough understanding of the invention. The foregoing description is only illustrative of the preferred embodiments of the invention, which can be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. Any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A caster wheel mounting bracket structure easy to produce, comprising a bracket body (1) for mounting a caster wheel and a bearing (2) arranged in the bracket body (1) in the horizontal direction, characterized in that: the bearing cover (3) is arranged on the upper side and/or the lower side of the bearing (2), the bearing cover (3) is provided with a horizontally arranged annular main body part (301) and a positioning boss part (302) formed by vertically extending the periphery of the annular main body part (301), and the positioning boss part (302) is attached to the outer circumferential surface of the bearing (2).

2. The easy-to-produce caster mounting bracket structure of claim 1, wherein: the bearing (2) and the bearing cover (3) are integrally injection-molded in the bracket body (1) in an assembled state.

3. The easy-to-produce caster mounting bracket structure of claim 2, wherein: the support body (1) is coated on partial outer side surfaces of the bearing (2) and the bearing cover (3) and clamps the bearing (2) through the bearing cover (3).

4. The easy-to-produce caster mounting bracket structure of claim 1, wherein: the middle part of the annular main body part (301) is provided with a through hole which is coaxially distributed with the bearing (2), and the diameter of the through hole is larger than the outer diameter of the inner ring of the bearing (2) and smaller than the inner diameter of the outer ring of the bearing (2).

5. The easy-to-produce caster mounting bracket structure of claim 1, wherein: the bearing (2) is connected with the bearing cover (3) in an interference fit mode, and the upper end face and the lower end face of the bearing (2) are abutted against the corresponding annular main body portion (301).

6. The easy-to-produce caster mounting bracket structure of claim 1, wherein: the bearing cover (3) is made of plastic materials, and the rigidity of the bearing cover is greater than that of the support body (1).

7. The easy-to-produce caster mounting bracket structure of claim 1, wherein: support body (1) is provided with and is cylindric roating seat (101) and by two relative otic placodes (102) are all extended to the bottom an organic whole of roating seat (101), bearing (2) with bearing cap (3) all are fixed to be set up in roating seat (101), two otic placode (102) are used for the axle to establish the truckle.