CN212737621U

CN212737621U - Mute type universal wheel

Info

Publication number: CN212737621U
Application number: CN202021651322.XU
Authority: CN
Inventors: 利伟坚
Original assignee: Guangzhou Conghua Xinxing Metal Caster Products Co ltd
Current assignee: Guangzhou Xinxing Metal Co.,Ltd.
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-03-19
Anticipated expiration: 2030-08-10

Abstract

The utility model relates to the technical field of trundle, in particular to a mute type universal wheel, which comprises a trundle bracket and a wheel arranged below the trundle bracket, wherein a turntable assembly capable of horizontally rotating is movably arranged on the trundle bracket, the turntable assembly comprises a bearing, a bearing upper cover, a fastening inserted bar and an installation structure which is fixedly connected with the upper end of the fastening inserted bar and is used for connecting bearing equipment, the bearing comprises an inner ring and an outer ring which can mutually rotate, and the upper end of the trundle bracket is provided with an installation groove; adopt the bearing as the rotation piece of carousel subassembly to make the truckle more nimble smooth and easy when rotating, moreover silence more, install the bearing through setting up the mounting groove on the truckle support, overall structure intensity is higher, and is better to the protectiveness of bearing moreover, and overall structure is compact moreover, easily assembles, low in manufacturing cost.

Description

Mute type universal wheel

Technical Field

The utility model relates to a truckle technical field specifically is silence type universal wheel.

Background

The caster is a common mechanical hardware fitting, is widely applied to the bottom of bearing equipment (such as furniture, a trolley, machining equipment and medical equipment) and is used for facilitating the movement of the bearing equipment, and the universal caster can not only move back and forth but also rotate freely in the horizontal direction. When the universal caster in the prior art is carried and driven, the work or rest of other people can be influenced by large noise, and the conventional caster has a complex structure and is not flexible to rotate.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defect that exists among the prior art, the utility model discloses a task is to provide silence type universal wheel, makes the silence effect of whole truckle better through setting up the bearing, and rotates more in a flexible way.

The utility model discloses the task is realized through following technical scheme:

the mute type universal wheel comprises a caster wheel bracket and wheels arranged below the caster wheel bracket, a turntable assembly capable of horizontally rotating is movably arranged on the caster wheel bracket, the rotary table component comprises a bearing, an upper bearing cover, a fastening inserted bar and a mounting structure which is fixedly connected to the upper end of the fastening inserted bar and used for connecting bearing equipment, the bearing comprises an inner ring and an outer ring which can rotate mutually, a mounting groove is formed in the upper end of the caster bracket, the bearing is vertically inserted into the mounting groove, the outer side wall of the outer ring is fixedly connected with the inner side wall of the mounting groove, the upper bearing cover covers the bearing, a first annular clamping groove is formed in the lower portion of the fastening inserted bar, an elastic clamping ring is sleeved outside the first annular clamping groove, a second annular clamping groove is further formed in the lower portion of the mounting groove, the lower end of the fastening inserted bar downwards penetrates through the upper bearing cover and the inner ring and is inserted into the mounting groove; the lower end of the fastening inserted bar is in clamping fit with the caster bracket through the elastic snap ring and the second annular clamping groove, so that the fastening inserted bar can rotate relative to the caster bracket but cannot axially move; the fastening inserted bar is provided with a non-circular clamping block, the upper surface of the bearing upper cover is provided with a non-circular clamping groove matched with the non-circular clamping block, and the clamping block is embedded into the clamping groove so that the fastening inserted bar and the bearing upper cover cannot rotate relatively.

Preferably, the side wall of the mounting groove extends upwards to form an annular baffle, and the cover plate of the upper bearing cover covers the annular baffle when the upper bearing cover covers the upper bearing.

Preferably, the mounting structure is a horizontally arranged mounting plate, the fastening inserted bar sequentially penetrates through the mounting plate, the upper bearing cover and the inner ring and is fixedly connected with the caster bracket, and the lower surface of the upper bearing cover tightly pushes against the upper end of the inner ring.

Preferably, the mounting structure is an integrally formed inserting rod, a screw rod or an inserting hole vertically arranged on the fastening inserting rod, and the lower surface of the upper bearing cover tightly pushes against the upper end of the inner ring.

Preferably, a clamp spring is further arranged above the inserted link.

Preferably, the bearing further comprises an annular protection plate arranged between the inner ring and the outer ring, and the annular protection plate is fixedly connected with the outer ring.

Preferably, the number of the wheels is two, the caster wheel support is located between the two wheels, and the wheels are connected with the caster wheel support through wheel shafts.

Compared with the prior art, the utility model discloses silence type universal wheel has following advantage: the bearing is adopted as the rotating part of the turntable assembly, so that the caster wheel is more flexible and smooth in rotation and is more silent, the bearing is installed by arranging the mounting groove on the caster wheel bracket, the whole structural strength is higher, the protection performance of the bearing is better, further, the clamping block is embedded into the clamping groove, so that the fastening inserted rod and the bearing upper cover cannot rotate relatively, but the fastening inserted rod can drive the bearing upper cover to rotate synchronously when rotating, the lower end of the fastening inserted rod and the caster wheel bracket are in clamping fit through the elastic clamping ring and the second annular clamping groove, so that the fastening inserted rod can rotate relative to the caster wheel bracket but cannot move axially, namely, the fastening inserted rod drives the bearing upper cover to rotate, the bearing upper cover drives the inner ring fixedly connected with the bearing upper cover to rotate relative to the outer ring, the fastening inserted rod and the inner ring are connected together through the bearing upper cover, so that the transmission connection, and the whole structure is compact, the assembly is easy, and the manufacturing cost is low.

The conception, the specific structure and the effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.

Drawings

FIG. 1 is a schematic structural view of a silent type caster according to the present embodiment;

fig. 2 is an exploded view of the silent type universal wheel according to the present embodiment.

Wherein: the caster wheel assembly comprises a caster wheel bracket 1, a mounting groove 11, an annular baffle plate 12, a wheel 2, a turntable assembly 3, a bearing 31, an inner ring 311, an outer ring 312, an annular protection plate 313, a bearing upper cover 32, a clamping groove 322, a fastening inserted rod 33, a first annular clamping groove 331, a clamping block 333 and a mounting structure 34.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the description of the specific embodiments is intended to be illustrative only and is not intended to be limiting.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or be indirectly connected to the other element through intervening elements. Also, the terms "upper," "lower," "left," "right," "front," "rear," "lateral," "vertical," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

As shown in fig. 1-2, the silent type universal wheel includes a caster bracket 1 and two wheels 2 installed below the caster bracket 1, the two wheels 2 are arranged in parallel, the caster bracket 1 is located between the two wheels 2, and the two wheels 2 are connected with the caster bracket 1 through a wheel axle. Compare a wheel 2 of traditional connection truckle support 1 below, wheel 2 in this embodiment sets up to two, can share the pressure of truckle support 1 top better, and is more stable at the in-process that removes.

Movable mounting has can horizontal pivoted carousel subassembly 3 on the truckle support 1, carousel subassembly 3 includes bearing 31, bearing upper cover 32, fastening inserted bar 33 and fixed connection just are used for connecting the mounting structure 34 who bears equipment in fastening inserted bar 33 upper end, bearing 31 is including inner circle 311 and outer lane 312 that can rotation each other, the upper end of truckle support 1 is equipped with mounting groove 11, the lateral wall of mounting groove 11 upwards extends there is annular baffle 12, bearing upper cover 32 covers bearing upper cover 32's apron cladding when bearing 31 top outside annular baffle 12, can prevent that outside dust from entering into in the bearing 31 and causing the destruction to bearing 31 inside. The bearing 31 is vertically inserted into the mounting groove 11, the outer side wall of the outer ring 312 is fixedly connected with the inner side wall of the mounting groove 11 in a tight fit mode, the mounting groove 11 covers the bearing 31 in the mounting groove, and the bearing 31 is prevented from being impacted by external force.

The upper bearing cover 32 covers the upper bearing 31, the fastening inserted bar 33 is inserted into the inner ring 311, the outer side wall of the fastening inserted bar 33 is fixedly connected with the inner side wall of the inner ring 311 in a tight fit mode, and the fastening inserted bar 33 and the inner ring are fixed together. A first annular clamping groove 331 is formed in the lower portion of the fastening insertion rod 33, an elastic clamping ring (not shown) is sleeved outside the first annular clamping groove 331, a second annular clamping groove is further formed in the lower portion of the mounting groove 11, the lower end of the fastening insertion rod 33 downwards penetrates through the bearing upper cover 32 and the inner ring 311 and is inserted into the mounting groove 11, and the lower end of the fastening insertion rod 33 is in clamping fit with the caster bracket 1 through the elastic clamping ring and the second annular clamping groove, so that the fastening insertion rod 33 can rotate relative to the caster bracket 1 but cannot axially move; the fastening inserted bar 33 is provided with a non-circular clamping block 333, the upper surface of the bearing upper cover 32 is provided with a non-circular clamping groove 322 matched with the non-circular clamping block 333, and the clamping block 333 is embedded into the clamping groove 322, so that the fastening inserted bar 33 and the bearing upper cover 32 cannot rotate relatively. In this embodiment, the bearing 31 is used as the rotating member of the turntable assembly 3, so that the caster is more flexible and smoother when rotating, and is more silent, the bearing 31 is installed by providing the installation groove 11 on the caster bracket 1, the strength of the whole structure is higher, and the protection performance of the bearing 31 is better, further, the clamping block 333 is embedded into the clamping groove 322, so that the fastening inserted bar 33 and the bearing upper cover 32 cannot rotate relatively, but the fastening inserted bar 33 can drive the bearing upper cover 32 to rotate synchronously when rotating, and the lower end of the fastening inserted bar 33 is in clamping fit with the caster bracket 1 through the elastic clamping ring and the second annular clamping groove, so that the fastening inserted bar 33 can rotate relative to the caster bracket 1 but cannot move axially, that is, the fastening inserted bar 33 rotates to drive the bearing upper cover 32 to rotate, the bearing upper cover 32 rotates to drive the inner ring 311 fixedly connected with the bearing upper cover 32 to rotate relative to the outer ring 312, the fastening inserted bar 33 is connected with the inner ring 311, the transmission connection is more compact, the whole structure is compact, the assembly is easy, and the manufacturing cost is low.

The mounting structure 34 is a horizontally arranged mounting plate, the fastening inserted bar 33 sequentially penetrates through the mounting plate, the bearing upper cover 32 and the inner ring 311 and is fastened and connected with the caster bracket, and the lower surface of the bearing upper cover 32 tightly pushes against the upper end of the inner ring 311, so that the connection between the inner ring 311 and the bearing upper cover 32 is more stable.

The mounting structure 34 is an integrally formed vertical rod, screw or jack arranged on the fastening rod 33, and the lower surface of the upper bearing cover 32 abuts against the upper end of the inner ring 311, so that the connection between the inner ring 311 and the upper bearing cover 32 is more stable. A snap spring is arranged above the inserted link.

The bearing 31 further comprises an annular protection plate 313 arranged between the inner ring 311 and the outer ring 312, the annular protection plate 313 is fixedly connected with the outer ring 312, and the annular protection plate 313 can prevent external dust from entering the bearing 31 to protect the bearing.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be understood by those skilled in the art that the scope of the present invention is not limited to the specific combination of the above-mentioned features, but also covers other embodiments formed by any combination of the above-mentioned features or their equivalents without departing from the spirit of the present invention. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. Silence type universal wheel, its characterized in that: comprises a caster wheel bracket and wheels arranged below the caster wheel bracket, wherein a turntable assembly capable of horizontally rotating is movably arranged on the caster wheel bracket, the rotary table component comprises a bearing, an upper bearing cover, a fastening inserted bar and a mounting structure which is fixedly connected to the upper end of the fastening inserted bar and used for connecting bearing equipment, the bearing comprises an inner ring and an outer ring which can rotate mutually, a mounting groove is formed in the upper end of the caster bracket, the bearing is vertically inserted into the mounting groove, the outer side wall of the outer ring is fixedly connected with the inner side wall of the mounting groove, the upper bearing cover covers the bearing, a first annular clamping groove is formed in the lower portion of the fastening inserted bar, an elastic clamping ring is sleeved outside the first annular clamping groove, a second annular clamping groove is further formed in the lower portion of the mounting groove, the lower end of the fastening inserted bar downwards penetrates through the upper bearing cover and the inner ring and is inserted into the mounting groove; the lower end of the fastening inserted bar is in clamping fit with the caster bracket through the elastic snap ring and the second annular clamping groove, so that the fastening inserted bar can rotate relative to the caster bracket but cannot axially move; the fastening inserted bar is provided with a non-circular clamping block, the upper surface of the bearing upper cover is provided with a non-circular clamping groove matched with the non-circular clamping block, and the clamping block is embedded into the clamping groove so that the fastening inserted bar and the bearing upper cover cannot rotate relatively.

2. The silent type universal wheel as claimed in claim 1, wherein the side wall of the mounting groove extends upwards to form an annular baffle, and the cover plate of the upper bearing cover covers the annular baffle when the upper bearing cover covers the upper bearing.

3. The silent type universal wheel according to claim 1, wherein the mounting structure is a horizontally arranged mounting plate, the fastening inserted link sequentially passes through the mounting plate, the upper bearing cover and the inner ring and is fastened and connected with the caster bracket, and the lower surface of the upper bearing cover abuts against the upper end of the inner ring.

4. The silent universal wheel as claimed in claim 1, wherein the mounting structure is an integrally formed insertion rod, screw rod or insertion hole vertically arranged on the fastening insertion rod, and the lower surface of the upper bearing cover abuts against the upper end of the inner ring.

5. The silent universal wheel as claimed in claim 4, wherein a snap spring is further provided above the insertion rod.

6. The silent type universal wheel according to claim 1, wherein the bearing further comprises an annular protection plate disposed between the inner ring and the outer ring, the annular protection plate being fixedly connected to the outer ring.

7. The silent gimbal wheel according to any one of claims 1 to 6, wherein the wheels are arranged in two parallel, the caster bracket is located between the two wheels, and the wheels are connected to the caster bracket through an axle.