Universal wheels and handling equipment

Abstract

The utility model provides a universal wheel and a handling device, wherein the universal wheel comprises: a horizontal outer mounting plate, the middle of which has a vertically penetrating circular through hole; a horizontal inner mounting plate, the inner mounting plate can be horizontally rotatably nested in the through hole; the middle of the inner mounting plate has a vertically penetrating mounting hole; a support shaft horizontally spanning the mounting hole, the two ends of the support shaft are connected to the inner mounting plate; a vertical running wheel, the running wheel can be vertically rotatably sleeved on the support shaft. According to the universal wheel provided by the utility model, the overall height can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of storage equipment, in particular to a universal wheel and handling equipment. Background Art

[0002] With the rapid development of my country's manufacturing and logistics industries, universal wheels play an important role in logistics and warehousing. In logistics and transportation, goods often need to be frequently transferred between warehouses and handling vehicles. The application of universal wheels makes the handling of goods simple and efficient. The universal wheels used in warehouse shelves and handling equipment allow workers to move goods easily, and on handling vehicles, the use of universal wheels allows trucks to rotate freely in a small space, improving handling efficiency.

[0003] In the process of implementing the present utility model, the inventors found that there are at least the following problems in the prior art:

[0004] like Figure 1 As shown, the existing universal wheel 10 generally includes a single wheel 11, a mounting frame 12 and a fixed seat 13. The single wheel 11 is rotatably mounted between the bottom of the mounting frame 12, and the top of the mounting frame 12 is rotatably connected to the fixed seat 13 through a bearing structure, so the distance from the fixed seat to the ground is at least the height of a single wheel. However, in some cases, such as the limitation of space size, it is hoped that the distance from the fixed seat to the ground can be reduced to reduce the overall height of the universal wheel, and the existing universal wheel cannot meet this requirement.

[0005] Therefore, a universal wheel and a handling device are needed to at least partially solve the above technical problems. Utility Model Content

[0006] In order to solve the problems in the prior art, the utility model provides a universal wheel and a handling device, which can reduce the overall height of the universal wheel.

[0007] In a first aspect, the utility model provides a universal wheel, comprising:

[0008] A horizontal outer mounting plate, wherein the middle of the outer mounting plate has a circular through hole extending vertically therethrough:

[0009] A horizontal inner mounting plate, the inner mounting plate can be horizontally rotated and nested in the through hole; a vertically penetrating mounting hole is provided in the middle of the inner mounting plate;

[0010] a support shaft horizontally spanning within the mounting hole, with both ends of the support shaft connected to the inner mounting plate; and

[0011] A vertical running wheel is mounted on the support shaft in a vertically rotatable manner.

[0012] According to the universal wheel of the utility model, the horizontal outer mounting plate and the inner mounting plate are used together as the mounting structure of the traveling wheel. On the one hand, the traveling wheel can rotate vertically, and on the other hand, the inner mounting plate connected to the traveling wheel through the support shaft can rotate horizontally, so that the traveling wheel can roll in any direction on the ground, and the height of the entire universal wheel is lower.

[0013] Optionally, the inner mounting plate is rotatably connected to the outer mounting plate via a horizontal first bearing, the outer mounting plate is provided with a step seat for placing the first bearing at the inner wall of the perforation, the step seat extends upward to the outside, and the part of the step seat above the first bearing is embedded with an upper cover plate for sealing; wherein the inner and outer sides of the first bearing are respectively abutted against the inner mounting plate and the outer mounting plate. And / or

[0014] The travel wheel is rotationally connected to the support shaft via a second bearing.

[0015] Optionally, part of the first bearing is constructed to extend horizontally inward to the outside of the step seat, and the outer wall surface of the inner mounting plate has a first step portion adapted to the part of the first bearing extending horizontally inward to the outside of the step seat, and the outer wall surface of the inner mounting plate is also provided with a second step portion recessed inwardly below the first step portion, and the second step portion is embedded in a lower cover plate for closure.

[0016] Optionally, the inner mounting plate is configured to be flush with the outer mounting plate.

[0017] Optionally, the universal wheel further comprises two running wheels, and the two running wheels are arranged side by side to the supporting shaft.

[0018] Optionally, the first bearing is a crossed roller bearing.

[0019] In a second aspect, the utility model further provides a handling device, comprising:

[0020] the body of the vehicle; and

[0021] As in the above-mentioned technical solution, the universal wheel is installed to the bottom of the vehicle body.

[0022] According to the handling equipment of the present invention, the overall height of the universal wheels is reduced, so that the overall height of the handling equipment is also reduced, meeting the requirements of passing through certain height-restricted areas.

[0023] By utilizing the technical solution according to the embodiment of the utility model, the beneficial effects that can be obtained are at least:

[0024] According to the universal wheel of the utility model, the inner mounting plate used for changing the traveling direction of the driving wheel on the ground is rotatably mounted to the middle of the outer mounting plate, so that the overall height of the universal wheel is reduced. The structure is simple but the conception is ingenious and the effect is remarkable.

[0025] Additional advantages, purposes, and features of the present invention will be partially described in the following description, and will become partially apparent to those skilled in the art after studying the following, or may be learned from the practice of the present invention. The purposes and other advantages of the present invention can be achieved and obtained by the structures specifically pointed out in the specification and the drawings.

[0026] Those skilled in the art will understand that the purposes and advantages that can be achieved by the present invention are not limited to the above specific description, and the above and other purposes that can be achieved by the present invention will be more clearly understood based on the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of the present invention, and do not constitute a limitation of the present invention. The components in the drawings are not drawn to scale, but are only for the purpose of illustrating the principles of the present invention. In order to facilitate the illustration and description of some parts of the present invention, the corresponding parts in the drawings may be enlarged, that is, they may become larger relative to other components in the exemplary device actually manufactured according to the present invention. In the drawings:

[0028] Figure 1 is a schematic diagram of an existing universal wheel;

[0029] Figure 2 It is an overall schematic diagram of a universal wheel according to an embodiment of the utility model;

[0030] Figure 3 is a schematic diagram of a partial internal structure of a universal wheel according to an embodiment of the utility model; and

[0031] Figure 4 The figure is a schematic diagram of another part of the internal structure of the universal wheel according to an embodiment of the utility model.

[0032] Description of reference numerals:

[0033] 10. Universal wheel; 11. Single wheel; 12. Mounting frame; 13. Fixed seat;

[0034] 100. Universal wheel;

[0035] 110, external mounting plate; 111, perforation; 112, step seat;

[0036] 120, inner mounting plate; 121, mounting hole; 122, first step seat; 123, second step seat;

[0037] 130. support shaft; 131. second bearing;

[0038] 140, driving wheel;

[0039] 150, first bearing;

[0040] 161. Upper cover plate; 162. Lower cover plate. DETAILED DESCRIPTION

[0041] By referring to the exemplary embodiments, the purposes and functions of the present invention and the methods for achieving these purposes and functions will be explained. However, the present invention is not limited to the exemplary embodiments disclosed below; it can be implemented in different forms. The essence of the description is only to help technicians in the relevant field to comprehensively understand the specific details of the present invention.

[0042] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, wholes, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or combinations thereof.

[0043] Ordinal numbers such as "first" and "second" cited in the present invention are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of the "second component", and the term "second component" itself does not imply the existence of the "first component".

[0044] It should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside" and similar expressions used in this document are for illustrative purposes only and are not limiting.

[0045] The utility model provides a universal wheel 100. The universal wheel 100 provided by the utility model can be applied to the field of storage equipment, such as the handling equipment in the stereoscopic warehouse, to solve the problem that the overall height of the universal wheel installed on the existing handling equipment is not low enough, and it is difficult to meet the requirements of the handling equipment passing through certain height-restricted areas.

[0046] In a preferred embodiment, Figure 2 and Figure 4 As shown, Figure 2 is an overall schematic diagram of a universal wheel 100 according to an embodiment of the utility model; Figure 4 The figure is a schematic diagram of the partial internal structure of the universal wheel 100 according to an embodiment of the utility model. The universal wheel 100 includes an outer mounting plate 110, an inner mounting plate 120, a support shaft 130 and a running wheel 140. The outer mounting plate 110 is used to carry the inner mounting plate 120. The inner mounting plate 120 is a structure capable of horizontal rotation and is used to install the support shaft 130. The support shaft 130 is used to install the running wheel 140. The running wheel 140 can realize vertical rotation.

[0047] Specifically, the middle of the horizontal outer mounting plate 110 has a circular through hole 111 that passes vertically therethrough. The outer mounting plate 110 is a plate-like or block-like structure with a certain thickness and structural strength. The universal wheel 100 can be connected to the body of the handling equipment through the outer mounting plate 110. The overall shape of the outer mounting plate 110 (without considering the influence of the through hole 111) is not limited and can be square, circular or other shapes.

[0048] The horizontal inner mounting plate 120 is nested in the through hole 111 so as to be horizontally rotatable relative to the outer mounting plate 110. A mounting hole 121 is vertically penetrated in the middle of the inner mounting plate 120. The mounting hole 121 is used to arrange the support shaft 130 and accommodate the running wheel 140, and its shape can be unlimited, such as circular, square, runway shape, etc. Overall, the inner mounting plate 120 is a circular structure (without considering the mounting hole 121). Preferably, the inner mounting plate 120 is constructed to be flush with the outer mounting plate 110 to achieve a compact and flat structure.

[0049] refer to Figure 4 , the support shaft 130 horizontally spans within the mounting hole 121 . Both ends of the support shaft 130 are connected to the inner mounting plate 120 .

[0050] The vertical running wheel 140 is vertically rotatably sleeved to the support shaft 130. The support shaft 130 passes through the center of the running wheel 140.

[0051] To realize vertical rotation of the travel wheel 140, the two ends of the support shaft 130 may be fixed to the inner mounting plate 120, and the travel wheel 140 may rotate around the support shaft 130. For example, a plurality of bearings (named as second bearings 131 to distinguish from the first bearing 150) are provided in the travel wheel 140, and the travel wheel 140 is rotatably mounted on the support shaft 130 through the second bearings 131. Alternatively, the travel wheel 140 is fixedly sleeved on the support shaft 130, and the two ends of the support shaft 130 are rotatably mounted in the mounting plate.

[0052] In order to make the universal wheel 100 rotate more smoothly and travel more stably, the running wheel 140 is designed to adopt two running wheels 140 arranged side by side. Two second bearings 131 are installed inside each running wheel 140.

[0053] According to the universal wheel 100 of the utility model, the horizontal outer mounting plate 110 and the inner mounting plate 120 are used together as the mounting structure of the traveling wheel 140. On the one hand, the traveling wheel 140 can rotate vertically, and on the other hand, the inner mounting plate 120 connected to the traveling wheel 140 through the support shaft 130 can rotate horizontally, so that the traveling wheel 140 can roll in any direction on the ground, and the height of the entire universal wheel 100 is lower.

[0054] refer to Figure 3 In order to realize the horizontal rotation of the inner mounting plate 120 relative to the outer mounting plate 110, the inner mounting plate 120 is rotatably connected to the outer mounting plate 110 via the horizontal first bearing 150. The outer mounting plate 110 is provided with a step seat 112 extending outward at the inner wall of the through hole 111 for placing the first bearing 150. The step seat 112 extends upward to the outside. The step seat 112 is embedded with an upper cover plate 161 for sealing in the part above the first bearing 150. Among them, the inner and outer sides of the first bearing 150 are respectively abutted against the inner mounting plate 120 and the outer mounting plate 110. The first bearing 150 can adopt a cross roller bearing, which can provide radial load and axial load.

[0055] Continue to refer Figure 3 , part of the first bearing 150 is configured to extend horizontally inward to the outside of the step seat 112. The outer wall surface of the inner mounting plate 120 has a first step portion adapted to the part of the first bearing 150 extending horizontally inward to the outside of the step seat 112. The outer wall surface of the inner mounting plate 120 is also provided with a second step portion recessed inwardly below the first step portion. The second step portion is embedded with a lower cover plate 162 for sealing.

[0056] In summary, according to the universal wheel 100 of the utility model, the inner mounting plate 120 used to change the traveling direction of the traveling wheel 140 on the ground is rotatably installed to the middle part of the outer mounting plate 110, and the traveling wheel 140 is rotatably installed on the support shaft 130 mounted on the inner mounting plate 120, so that the overall height of the universal wheel 100 is reduced. The structure is simple but the conception is ingenious and the effect is remarkable.

[0057] In a second aspect, the utility model further provides a transport device, comprising a vehicle body and the universal wheel 100 of the above technical solution, wherein the universal wheel 100 is installed at the bottom of the vehicle body.

[0058] According to the handling device of the present invention, the overall height of the universal wheel 100 is reduced, so that the overall height of the handling device is also reduced, meeting the requirements of passing through certain height-restricted areas.

[0059] In combination with the description and practice of the utility model disclosed herein, other embodiments of the utility model are easy to think of and understand for those skilled in the art. The description and embodiments are considered to be exemplary only, and the true scope and spirit of the utility model are defined by the claims.

Claims

1. A universal wheel, characterized in that: The universal wheel comprises: A horizontal outer mounting plate, wherein the middle of the outer mounting plate has a circular through hole extending vertically therethrough: A horizontal inner mounting plate, the inner mounting plate can be horizontally rotated and nested in the through hole; a vertically penetrating mounting hole is provided in the middle of the inner mounting plate; a support shaft horizontally spanning within the mounting hole, with both ends of the support shaft connected to the inner mounting plate; and A vertical running wheel is mounted on the support shaft in a vertically rotatable manner.

2. The universal wheel according to claim 1, characterized in that: The inner mounting plate is rotatably connected to the outer mounting plate via a horizontal first bearing, and the outer mounting plate is provided with a step seat for placing the first bearing at the inner wall of the perforation, the step seat extends upward to the outside, and the part of the step seat above the first bearing is embedded with an upper cover plate for sealing; wherein the inner and outer sides of the first bearing are respectively abutted against the inner mounting plate and the outer mounting plate; and / or The travel wheel is rotationally connected to the support shaft via a second bearing.

3. The universal wheel according to claim 2, characterized in that: Part of the first bearing is constructed to extend horizontally inward to the outside of the step seat, and the outer wall surface of the inner mounting plate has a first step portion adapted to the part of the first bearing extending horizontally inward to the outside of the step seat. The outer wall surface of the inner mounting plate is also provided with a second step portion recessed inwardly below the first step portion, and the second step portion is embedded in a lower cover plate for closure.

4. The universal wheel according to claim 1, characterized in that: The inner mounting plate is configured to be flush with the outer mounting plate.

5. The universal wheel according to claim 4, characterized in that: Further included are two travel wheels, the two travel wheels being provided side by side to the support shaft.

6. The universal wheel according to claim 2, characterized in that: The first bearing is a cross roller bearing.

7. A handling device, characterized in that: The handling equipment comprises: the body of the vehicle; and The universal wheel according to any one of claims 1 to 6, wherein the universal wheel is mounted to the bottom of the vehicle body.

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