Universal wheel set and mobile display screen

Abstract

The utility model discloses a universal wheel set and a mobile display screen, which comprises a support frame, a rotating seat horizontally and rotatably arranged above the support frame, and a pulley arranged on the bottom side of the support frame, the support frame comprises a transverse plate frame with a downward opening and a U-shaped longitudinal section, and a vertical plate set fixedly connected on the lower side of the transverse plate frame, the vertical plate set comprises two parallel vertical plates, the pulley is installed between the two vertical plates of the vertical plate set, a center hole is formed in the middle of the transverse plate frame, bayonets are formed in the bottom ends of the two sides of the transverse plate frame, an inserting part is arranged at the top end of the middle of each vertical plate, and clamping parts are arranged at the top ends of the two sides of each vertical plate. The inserting part is fixedly inserted in the center hole, and the clamping part is fixedly clamped in the bayonet. The universal wheel set is higher in structural strength and better in supporting stability, deformation is effectively avoided, it is guaranteed that the universal wheel set can have the good bearing and supporting effect on products with the large size and weight, and the service life is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of omnidirectional wheel assembly technology, specifically to an omnidirectional wheel assembly and a mobile display screen. Background Technology

[0002] Large mobile displays on the market are over 3 meters long, over 2.5 meters high, and weigh around 1.5 tons. They are quite large in size and weight. However, the transport wheels used to transport these mobile displays have insufficient structural strength and poor support stability, which makes them prone to deformation and affects their service life. Utility Model Content

[0003] The present invention aims to provide a universal wheel assembly to solve the aforementioned technical problems.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: a universal wheel assembly, including a support frame, a swivel seat horizontally rotatably mounted above the support frame, and a pulley mounted on the bottom side of the support frame. The support frame includes a horizontal plate frame with an opening facing downward and a U-shaped longitudinal section, and a vertical plate assembly fixedly connected to the lower side of the horizontal plate frame. The vertical plate assembly includes two parallel vertical plates. The pulley is installed between the two vertical plates of the vertical plate assembly. A central hole is opened in the middle of the horizontal plate frame, and latches are opened at the bottom ends of both sides of the horizontal plate frame. An insertion part is provided at the top of the middle of the vertical plate, and latching parts are provided at the top ends of both sides of the vertical plate. The insertion part is fixedly inserted into the central hole, and the latching part is fixedly latched into the latch.

[0005] Preferably, there are multiple vertical plate assemblies, which are fixedly connected to the underside of the horizontal plate along the length direction.

[0006] Preferably, the top wall of the vertical plate is welded and fixed to the bottom wall of the horizontal plate frame, the snap-fit ​​part is inserted into the central hole and welded and fixed, and the snap-fit ​​part is snapped into the bayonet and welded and fixed.

[0007] Preferably, a reinforcing plate is fixedly installed on the side of the upright plate away from the pulley, and the two ends of the pulley's shaft pass through the upright plate and the reinforcing plate in sequence and are locked with screws.

[0008] Preferably, the rotating seat includes an outer ring assembly and an inner ring assembly fixedly installed inside the outer ring assembly. The outer ring assembly includes an outer ring member and an outer ring plate fixedly installed on the top of the outer ring member. The inner ring assembly includes an inner ring member and an inner ring plate fixedly installed on the top of the inner ring member, and the outer ring plate and the inner ring plate are at the same horizontal height.

[0009] Preferably, the vertical plate includes an upper plate and a lower plate that are integrally formed, the upper plate being convex in shape and the lower plate being isosceles trapezoidal in shape, with the snap-fit ​​part located at the top center of the upper plate.

[0010] Preferably, a bearing is connected between the rotating seat and the support frame, and the rotating seat is mounted on top of the support frame by horizontal rotation via the bearing.

[0011] Preferably, the bearing is a thrust bearing.

[0012] Preferably, the support frame has a symmetrical structure, and a protective sleeve and a support pad are provided on the top side of the transverse plate frame. The protective sleeve is located on the periphery of the bearing, and the support pad is located inside the bearing and cooperates with the rotating seat support.

[0013] This utility model also provides a mobile display screen, including a display screen mechanism and a plurality of the aforementioned universal wheel sets, wherein the plurality of universal wheel sets are fixedly installed at the bottom of the display screen mechanism.

[0014] This utility model has the following beneficial effects:

[0015] (1) By fixing the vertical plate to the lower side of the horizontal plate frame at multiple points and combining it with the U-shaped horizontal plate frame structure, the vertical plate and the horizontal plate frame can be stably limited in the front, back, left, right and up directions. The structure is stronger and the support stability is better, which effectively avoids deformation and ensures that the universal wheel set can also play a good load-bearing support role for products with large volume and weight, thus extending the service life.

[0016] (2) The support frame is a symmetrical structure. The top side of the transverse plate frame is equipped with a protective sleeve and a support pad. The protective sleeve is located on the outer periphery of the bearing, which serves to protect and shield the bearing and to enhance its aesthetic appeal. The support pad is located inside the bearing and cooperates with the swivel seat support, further improving the structural strength and support stability of the universal wheel set. Attached Figure Description

[0017] Figure 1 This is a front view of the caster wheel assembly according to an embodiment of the present invention.

[0018] Figure 2 This is a bottom view of the caster wheel assembly according to an embodiment of this utility model.

[0019] Figure 3 This is a top view of the universal wheel assembly according to an embodiment of the present invention.

[0020] Figure 4 This is a left view of the caster wheel assembly according to an embodiment of this utility model.

[0021] Figure 5 This is a half-sectional view of the caster wheel assembly according to an embodiment of this utility model.

[0022] Figure 6 This is a bottom-view view of the horizontal plate frame according to an embodiment of the present invention.

[0023] Figure 7This is a schematic diagram of the structure of the vertical plate according to an embodiment of the present invention.

[0024] Attached figures are labeled as follows: 1 Support frame, 11 Horizontal plate frame, 111 Center hole, 112 Bayonet, 12 Vertical plate, 121 Insertion part, 122 Snap-fit ​​part, 13 Reinforcing plate, 2 Rotary seat, 21 Outer ring part, 22 Inner ring part, 23 Outer ring plate, 24 Inner ring plate, 3 Pulley, 4 Bearing, 5 Self-locking spring plunger, 6 Protective sleeve, 7 Support pad, 8 Support gasket. Detailed Implementation

[0025] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0026] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] See Figure 1-7As shown in the figure, as an embodiment of the present invention, a universal wheel assembly is provided, including a support frame 1, a swivel seat 2 horizontally rotatably mounted above the support frame 1, and a pulley 3 mounted on the bottom side of the support frame 1. The support frame 1 includes a horizontal plate frame 11 with an opening facing downward and a U-shaped longitudinal section, and a set of vertical plates 12 fixedly connected to the lower side of the horizontal plate frame 11. The set of vertical plates 12 includes two parallel vertical plates 12. The pulley 3 is installed between the two vertical plates 12 of the set of vertical plates 12. A central hole 111 is opened in the middle of the horizontal plate frame 11, and a latch 112 is opened at the bottom ends of both sides of the horizontal plate frame 11. A central top end of the vertical plate 12 is provided with... The vertical plate 12 has a plug-in part 121 and a snap-fit ​​part 122 at the top of both sides. The plug-in part 121 is fixedly plugged into the center hole 111, and the snap-fit ​​part 122 is fixedly snapped into the slot 112. This allows the vertical plate 12 to be fixedly connected to the lower side of the horizontal plate frame 11 at multiple points. Combined with the U-shaped structure of the horizontal plate frame 11, the vertical plate 12 and the horizontal plate frame 11 can be stably limited in the front-back, left-right, up-down directions. This results in higher structural strength, better support stability, and effectively avoids deformation. It also ensures that the omnidirectional wheel set can provide good load-bearing support for products with large volume and weight, thus extending its service life.

[0029] In this embodiment, there are multiple sets of vertical plates 12. These multiple sets of vertical plates 12 are fixedly connected to the lower side of the horizontal plate along the length direction, which makes the system more balanced and stable, and further improves the support stability and support strength of the universal wheel assembly for the product.

[0030] In this embodiment, the top wall of the vertical plate 12 is welded and fixed to the bottom wall of the horizontal plate frame 11, the snap-fit ​​part 122 is inserted into the central hole 111 and welded and fixed, and the snap-fit ​​part 122 is snapped into the slot 112 and welded and fixed. The welding area is larger, which ensures the connection stability and the support and load-bearing effect.

[0031] In this embodiment, a reinforcing plate 13 is fixedly installed on the side of the vertical plate 12 away from the pulley 3. The two ends of the pulley 3's shaft pass sequentially through the vertical plate 12 and the reinforcing plate 13, respectively, and are locked in place with screws, thereby improving the installation stability and connection strength of the pulley 3 on the vertical plate 12 assembly.

[0032] In this embodiment, the rotating base 2 includes an outer ring assembly and an inner ring assembly fixedly installed inside the outer ring assembly. The outer ring assembly includes an outer ring member 21 and an outer ring plate 23 fixedly installed on the top of the outer ring member 21. The inner ring assembly includes an inner ring member 22 and an inner ring plate 24 fixedly installed on the top of the inner ring member 22. The outer ring member 21 and the inner ring member 22 are locked together by a self-locking spring plunger 5. This structure makes the overall strength of the rotating base 2 higher and the support effect better. Moreover, the outer ring plate 23 and the inner ring plate 24 are at the same horizontal height, which makes it convenient to fix the base of the product on the top side of the outer ring plate 23 and the inner ring plate 24.

[0033] In this embodiment, the vertical plate 12 includes an upper plate and a lower plate that are integrally formed. The upper plate is convex in shape, and the recesses on both sides of the top of the upper plate are arc-shaped transitions. The lower plate is an isosceles trapezoid, and the snap-fit ​​part is located at the top center of the upper plate, making the overall omnidirectional wheel assembly more balanced and stable, and providing higher support strength.

[0034] In this embodiment, a bearing 4 is connected between the rotating seat 2 and the support frame 1, and the rotating seat 2 is horizontally rotated and installed above the support frame 1 through the bearing 4.

[0035] In this embodiment, bearing 4 is a thrust bearing 4, which has the advantages of high load capacity, long service life, good adaptability, and is easier to install and maintain.

[0036] In this embodiment, the support frame 1 has a symmetrical structure. The top side of the transverse plate frame 11 is provided with a protective sleeve 6 and a support pad 7. The protective sleeve 6 is located on the periphery of the bearing 4, which serves to protect and shield the bearing and to enhance its appearance. The support pad 7 is located inside the bearing 4 and is supported and cooperates with the swivel seat 2, which further improves the structural strength and support stability of the universal wheel assembly.

[0037] In this embodiment, a support pad 8 is also fixedly connected between the transverse plate frame 11 and the bearing 4 to improve the assembly stability and support effect between the two.

[0038] This utility model also provides a mobile display screen, including a display screen mechanism and multiple sets of universal wheels as described in the above embodiments. The multiple sets of universal wheels are fixedly installed at the bottom of the display screen mechanism. The display screen mechanism is a large display screen mechanism with a length of more than 3 meters, a height of more than 2.5 meters, and a weight of about 1.5 tons. The universal wheels have higher strength, can effectively avoid deformation, and can also play a better load-bearing and support role for the large display screen mechanism.

[0039] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that any changes in form and detail made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims fall within the protection scope of the present invention.

Claims

1. A group of universal wheels, characterized in that: The utility model provides a support frame, horizontal rotation is installed in the upper side of support frame's rotating seat and the pulley of installation in support frame bottom side, support frame includes the horizontal plate frame of opening downward and longitudinal section shows U shape and the vertical plate group of fixed connection in the downside of horizontal plate frame, and vertical plate group includes two parallel vertical plates, and the pulley is installed between two vertical plates of vertical plate group, and the middle part of horizontal plate frame is equipped with the center hole, and the bottom end of both sides of horizontal plate frame is equipped with the bayonet, and the middle part top of vertical plate is equipped with the splicing part, and the top of both sides of vertical plate is equipped with the clamping part, and the splicing part is fixedly inserted in the center hole, and the clamping part is fixedly clamped in the bayonet.

2. The cardan wheel set according to claim 1, characterized in that: The vertical plate group is multiple, and the multiple vertical plate groups are fixedly connected to the lower side of the horizontal plate along the length direction.

3. The wheel assembly of claim 1, wherein: The top wall of the vertical plate is welded and fixed to the bottom wall of the horizontal plate frame, the clamping part is inserted into the center hole and welded and fixed, and the clamping part is clamped into the bayonet and welded and fixed.

4. The wheel assembly of claim 1, wherein: The side of the vertical plate away from the pulley is fixedly provided with a reinforcing plate, and the both ends of the rotating shaft of the pulley sequentially pass through the vertical plate, the reinforcing plate and the screw locking cooperation.

5. The wheel assembly of claim 1, wherein: The rotating seat comprises an outer ring assembly and an inner ring assembly fixedly installed in the inner portion of the outer ring assembly, the outer ring assembly comprises an outer ring piece and an outer ring plate fixedly installed at the top of the outer ring piece, the inner ring assembly comprises an inner ring piece and an inner ring plate fixedly installed at the top of the inner ring piece, and the outer ring plate and the inner ring plate are at the same horizontal height.

6. The wheel assembly of claim 1, wherein: The vertical plate comprises an upper plate body and a lower plate body integrally formed in an up-down manner, the upper plate body is in the shape of a Chinese character KU, and the lower plate body is in the shape of an isosceles trapezoid, and the clamping part is located at the middle top of the upper plate body.

7. The wheel assembly of claim 1, wherein: The rotating seat is horizontally rotatably installed above the support frame through the bearing.

8. The wheel assembly of claim 7, wherein: The bearing is a thrust bearing.

9. The wheel assembly of claim 7, wherein: The support frame is of a symmetrical structure, the top side of the horizontal plate frame is provided with a protective sleeve and a supporting pad, the protective sleeve is located at the periphery of the bearing, and the supporting pad is located in the inner portion of the bearing and supports the rotating seat.

10. A mobile display screen, characterized by: The utility model provides a support frame, horizontal rotation is installed in the upper side of support frame's rotating seat and the pulley of installation in support frame bottom side, support frame includes the horizontal plate frame of opening downward and longitudinal section shows U shape and the vertical plate group of fixed connection in the downside of horizontal plate frame, and vertical plate group includes two parallel vertical plates, and the pulley is installed between two vertical plates of vertical plate group, and the middle part of horizontal plate frame is equipped with the center hole, and the bottom end of both sides of horizontal plate frame is equipped with the bayonet, and the middle part top of vertical plate is equipped with the splicing part, and the top of both sides of vertical plate is equipped with the clamping part, and the splicing part is fixedly inserted in the center hole, and the clamping part is fixedly clamped in the bayonet.

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