CN219446635U

CN219446635U - Welded bearing type universal wheel

Info

Publication number: CN219446635U
Application number: CN202320952782.3U
Authority: CN
Inventors: 李向通
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-04-25
Filing date: 2023-04-25
Publication date: 2023-08-01
Anticipated expiration: 2033-04-25

Abstract

The utility model discloses a welded bearing type universal wheel, which belongs to the technical field of casters and comprises a connecting piece, a rotating bearing, a support and a roller, wherein the connecting piece is an iron casting and is fixedly arranged on a carrier and comprises a clamping piece and a limiting groove, the rotating bearing and the support are sleeved at the bottom end of the connecting piece, the rotating bearing is positioned between the connecting piece and the support, the top end of the rotating bearing is suitable for propping against the connecting piece, and the bottom end of the rotating bearing is welded and fixed at the top end of the support. The support includes footboard, restriction soon and brake block, and the support bottom is provided with the gyro wheel. When the welding bearing type universal wheel is used, the carrier is pushed, the rotary bearing rotates to drive the support to rotate to a pushing direction, the idler wheel starts to roll, after stopping pushing, the pedal is pressed, the brake block is abutted against the idler wheel to stop rolling of the idler wheel, on the other hand, the limit block is abutted against the limit groove to stop moving of the support, and then the rotary bearing is locked, so that braking of the welding bearing type universal wheel is realized.

Description

Welded bearing type universal wheel

Technical Field

The utility model relates to the field of casters, in particular to a welded bearing type universal wheel.

Background

The universal wheel means that the bracket mounted on the wheel of the universal wheel can rotate horizontally by 360 degrees in dynamic load or static load.

At present, the swivel bearing of universal wheel on the market is directly installed in the support, and ball in the swivel bearing exposes in the external environment, after long-term use, the swivel bearing outer lane receives wearing and tearing, makes the ball in the swivel bearing easily drop in from the swivel bearing, leads to the universal wheel to damage, unable normal use, in addition, because wearing and tearing take place easily in traditional swing joint mode between swivel bearing and the support, and lack effectual lubrication means between the mechanism again, consequently lead to the universal wheel when using, often take place harshness noise, make the universal wheel bring the discomfort for the user on whole use.

Disclosure of Invention

Therefore, the utility model provides a welded bearing type universal wheel, which is characterized in that the bottom end of a rotary bearing is welded and fixed at the top end of a bracket, so that the problems of falling off and noise occurrence of the rotary bearing balls caused by the fact that the conventional universal wheel is not firmly fixed in the prior art are solved.

In order to achieve the above object, the present utility model provides the following technical solutions:

the utility model provides a welded bearing type universal wheel which is arranged at the bottom end of a carrier and comprises a connecting piece, a rotating bearing, a bracket and a roller, wherein the rotating bearing is sleeved at the bottom end of the connecting piece, the top end of the rotating bearing is coaxially and rollingly connected with the connecting piece, the bottom end of the rotating bearing is fixedly welded at the top end of the bracket, and the roller is arranged at the bottom end of the bracket;

the connecting piece includes fixed block, mounting hole, fixing bolt, clamping piece and spacing groove, the symmetry is provided with a plurality of mounting holes on the fixed block, fixing bolt sets up in fixed block center department, the cover is equipped with the clamping piece on the fixing bolt, the clamping piece is in the support below, clamping piece bottom mounting is provided with the spacing groove.

Further, the clamping piece is in threaded transmission connection with the fixing bolt.

Further, the support includes support body, through-hole, footboard, first depression bar, second depression bar, dwang, spring leaf and bolt, the through-hole is fixed to be set up in support body one side, be provided with the dwang in the middle of the support body, the support body opposite side is provided with first depression bar, the support body bottom is provided with the bolt.

Further, the pedal is movably sleeved on the first pressure rod, and a second pressure rod is arranged inside the pedal.

Further, the spring piece includes brake block, lamellar body and restriction piece, the fixed setting of restriction piece is in lamellar body one end, lamellar body fixed cover is established on the dwang, the lamellar body other end inserts and establishes in the middle of first depression bar and second depression bar, and is fixed to be provided with the brake block.

Further, when the pedal is pressed downwards, the pedal is propped against one end of the spring piece, the spring piece rotates around the rotating rod, one end of the spring piece is bent downwards, the other end of the spring piece is lifted, and the pedal is suitable for propping against the limiting groove.

Further, the idler wheel comprises a wheel body and a bearing, the bearing is fixedly embedded in the center of the wheel body, and the bearing is sleeved on the bolt.

Further, the wheel body is suitable for being abutted against the brake block.

The utility model has the following advantages:

1. when the universal wheel is used, the rotary bearing is coaxially connected with the support in a transmission way, the roller wheels are arranged below the support, so that the universal wheel can move in different directions.

2. The utility model is provided with the locking device, one end of the spring piece is downwards bent by pressing the pedal, the brake block is propped against the roller, the other end of the spring piece is lifted, and the limiting block is meshed with the limiting groove, so that the rotating bearing and the roller can be simultaneously locked.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It will be apparent to those of ordinary skill in the art that the drawings in the following description are exemplary only and that other implementations can be obtained from the extensions of the drawings provided without inventive effort.

The structures, proportions, sizes, etc. shown in the present specification are shown only for the purposes of illustration and description, and are not intended to limit the scope of the utility model, which is defined by the claims, so that any structural modifications, changes in proportions, or adjustments of sizes, which do not affect the efficacy or the achievement of the present utility model, should fall within the ambit of the technical disclosure.

FIG. 1 is a perspective view of a welded-bearing universal wheel according to an embodiment of the present utility model;

FIG. 2 is a perspective view of a connector for a welded-bearing universal wheel according to an embodiment of the present utility model;

FIG. 3 is a perspective view of a bracket for a welded-bearing universal wheel according to an embodiment of the present utility model;

fig. 4 is a perspective view of a roller of a welded-bearing universal wheel according to an embodiment of the present utility model;

in the figure: 1, a connecting piece; 11 fixing blocks; 12 mounting holes; 13 fixing bolts; 14 clamping pieces; 15 limit grooves; 2, a rotary bearing; 3, a bracket; 31 frame bodies; 32 through holes; a 33 pedal; 34 a first compression bar; a second compression bar 35; 36 rotating the rod; a 37 spring piece; 371 brake pads; 372 tablets; 373 limit blocks; 38 bolts; 4, rolling wheels; 41 wheel body; 42 antifriction bearing.

Detailed Description

Other advantages and advantages of the present utility model will become apparent to those skilled in the art from the following detailed description, which, by way of illustration, is to be read in connection with certain specific embodiments, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, a welded-bearing universal wheel according to the present disclosure will now be described.

The device is arranged at the bottom end of a carrier 5 and comprises a connecting piece 1, a rotating bearing 2, a support 3 and a roller 4, wherein the connecting piece 1 is arranged below the carrier 5, the bottom end of the connecting piece 1 is propped against the top end of the rotating bearing 2, the rotating bearing 2 is welded at the top end of the support 3, the rotating bearing 2 and the support 3 are in coaxial rolling connection with the connecting piece 1, and the roller 4 is movably sleeved at the bottom end of the support 3.

In a specific embodiment disclosed by the utility model, as shown in fig. 2, the connecting piece 1 comprises a fixed block 11, mounting holes 12, a fixed bolt 13, a clamping piece 14 and a limiting groove 15, wherein the fixed block 11 is symmetrically provided with a plurality of mounting holes 12, the connecting piece 11 is arranged below the carrier 5, the fixed bolt 13 is arranged at the center of the fixed block 11 and is used for fixing the rotating bearing 2 and the bracket 3, the clamping piece 14 is sleeved on the fixed bolt 13, the clamping piece 14 is arranged below the bracket 3, the bottom end of the clamping piece 14 is fixedly provided with the limiting groove 15, and the limiting groove 15 is suitable for the bracket 3 to prop against, so that the bracket 3 stops moving, and then the rotating bearing 2 stops rotating.

In one embodiment of the present disclosure, as shown in fig. 2, the clamping member 14 is in threaded connection with the fixing bolt 13, so that the rotating bearing 2 and the bracket 3 are tightly sleeved on the fixing bolt 13.

In a specific embodiment disclosed by the utility model, as shown in fig. 3, the bracket 3 comprises a bracket body 31, a through hole 32, a pedal 33, a first pressing rod 34, a second pressing rod 35, a rotating rod 36, a spring piece 37 and a bolt 38, wherein the through hole 32 is arranged on one side of the bracket body 31, the fixed bolt 13 is inserted into the through hole 32, the rotating rod 36 is arranged in the middle of the bracket body 31, the spring piece 37 is movably sleeved on the rotating rod 36, the spring piece 37 can rotate around the rotating rod 36, the first pressing rod 34 is riveted on the other side of the bracket body 31, and the bolt 38 is arranged at the bottom end of the bracket body 31.

In a specific embodiment of the present disclosure, as shown in fig. 3, a pedal 33 is movably sleeved on a first compression bar 34, a second compression bar 35 is disposed inside the pedal 33, when the pedal 33 is pressed, the pedal 33 rotates along the first compression bar 34 and abuts against the top end of a spring piece 37, meanwhile, the pedal 33 drives the second compression bar 35 to rotate along a rotation bar 36, so that the bottom end of the spring piece 37 abuts against, the rotation direction of the second compression bar 35 is opposite to the pressing direction of the pedal 33, and a shearing force is provided for the spring piece 37, so that the spring piece 37 is bent, and the wheel body 41 is braked.

In one embodiment of the disclosure, as shown in fig. 3, the spring piece 37 includes a brake block 371, a sheet 372 and a limit block 373, the limit block 373 is fixedly disposed at one end of the sheet 372, the sheet 372 is movably sleeved on the rotary rod 36, the other end of the sheet 372 is inserted below the first compression rod 34 and above the second compression rod 35 and is fixedly provided with the brake block 371, the brake block 371 is suitable for the roller 4 to abut against, the sheet 372 can rotate along the rotary rod 36 and abut against the first compression rod 34 upwards, meanwhile, the first compression rod 34 provides a downward force for the sheet 372, finally the sheet 372 is fixed below the first compression rod 34, meanwhile, the sheet 372 abuts against the second compression rod 35 downwards, and continues to bend downwards at the second compression rod 35 to lock the roller 4.

In one embodiment of the present disclosure, when the pedal 33 is pressed downward, it abuts against one end of the spring piece 37, and the spring piece 37 rotates along the rotating rod 36, one end of the spring piece 37 is bent downward, the other end of the spring piece 37 is lifted up, and is adapted to abut against the limiting groove 15, and the limiting block 373 engages with the limiting groove 15, so that the bracket 3 is fixed with the connecting piece 1, and then the rotating bearing 2 stops working.

In one embodiment of the present disclosure, as shown in fig. 4, the roller 4 includes a roller body 41 and an antifriction bearing 42, wherein the antifriction bearing 42 is fixedly embedded in the center of the roller body 41, and the antifriction bearing 42 is sleeved on the bolt 38.

In one embodiment of the present disclosure, the wheel 41 is adapted to abut against the brake block 371, and when one end of the spring piece 37 is bent downward, the brake block 371 vertically contacts with the wheel 41 to complete braking of the roller 4, and further, a pattern is provided on the outer side of the wheel 41, so that friction force can be increased and braking effect can be improved.

The application process of the embodiment of the utility model is as follows:

when the bearing welding type universal wheel is specifically used, firstly, when the pushing carrier 5 turns, the rotating bearing 2 rotates and drives the bracket 3 to rotate to the advancing direction, the roller 4 starts to roll along the advancing direction, after stopping pushing, the pedal 33 is pressed, the pedal 33 rotates along the first pressing rod 34, the pedal 33 is propped against the spring piece 37, one end of the spring piece 37 is driven to prop against the second pressing rod 35 and bend, the brake block 371 props against the roller 4, the rolling of the roller 4 is limited, on the other hand, the other end of the spring piece 37 is lifted, the limit block 371 is meshed with the limit groove 15, the bracket 3 stops moving, and then the rotating bearing 2 is locked, so that the braking of the welding bearing type universal wheel is realized.

While the utility model has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the utility model and are intended to be within the scope of the utility model as claimed.

Claims

1. The universal wheel with the welded bearing is arranged at the bottom end of a carrier (5), and is characterized by comprising a connecting piece (1), a rotating bearing (2), a bracket (3) and a roller (4), wherein the rotating bearing (2) is sleeved at the bottom end of the connecting piece (1), the top end of the rotating bearing (2) is coaxially and rollingly connected with the connecting piece (1), the bottom end of the rotating bearing (2) is fixedly welded at the top end of the bracket (3), and the roller (4) is arranged at the bottom end of the bracket (3);

connecting piece (1) is including fixed block (11), mounting hole (12), fixing bolt (13), clamping piece (14) and spacing groove (15), the symmetry is provided with a plurality of mounting holes (12) on fixed block (11), fixing bolt (13) set up in fixed block (11) center department, movable sleeve is equipped with clamping piece (14) on fixing bolt (13), clamping piece (14) are in support (3) below, clamping piece (14) bottom mounting is provided with spacing groove (15).

2. A welded-bearing universal wheel according to claim 1, characterized in that the clamping element (14) is screwed with a fixing bolt (13).

3. The welded bearing universal wheel according to claim 2, wherein the bracket (3) comprises a bracket body (31), a through hole (32), a pedal (33), a first pressing rod (34), a second pressing rod (35), a rotating rod (36), a spring piece (37) and a bolt (38), the through hole (32) is fixedly arranged on one side of the bracket body (31), the rotating rod (36) is arranged in the middle of the bracket body (31), the first pressing rod (34) is arranged on the other side of the bracket body (31), and the bolt (38) is arranged at the bottom end of the bracket body (31).

4. A welded-bearing universal wheel according to claim 3, characterized in that the pedal (33) is movably sleeved on the first compression bar (34), and the second compression bar (35) is arranged inside the pedal (33).

5. The welded bearing universal wheel according to claim 4, wherein the spring piece (37) comprises a brake block (371), a sheet body (372) and a limiting block (373), the limiting block (373) is fixedly arranged at one end of the sheet body (372), the sheet body (372) is fixedly sleeved on the rotary rod (36), the other end of the sheet body (372) is inserted between the first compression rod (34) and the second compression rod (35), and the brake block (371) is fixedly arranged at the end part.

6. A welded-bearing universal wheel according to claim 5, characterized in that when the pedal (33) is pressed downwards, the spring piece (37) is deformed and rotated along the rotating rod (36), one end of the spring piece (37) is bent downwards, and the other end is lifted up to be suitable for abutting against the limit groove (15).

7. The welded-bearing universal wheel according to claim 6, wherein the roller (4) comprises a wheel body (41) and an antifriction bearing (42), the antifriction bearing (42) is fixedly embedded in the center of the wheel body (41), and the antifriction bearing (42) is sleeved on the bolt (38).

8. A welded-bearing universal wheel according to claim 7, characterized in that the wheel body (41) is adapted to abut against the brake pads (371).