Lifting wheel for lifting and placing

Abstract

The invention discloses a lifting wheel capable of being placed. The lifting wheel comprises a support, a rotating seat, a supporting seat, a spring piece and a pedal. Rollers are arranged at the lower end of the rotating seat. The supporting base is installed on the support. Two ends of the spring piece are respectively connected with the bracket and the rotating seat. The pedal is rotationally connected to the support and provided with a first abutting face and a second abutting face. The pedal rotates to drive the rotating base to rotate, and when the first abutting face abuts against the upper end face of the rotating base, the lowermost end of the rolling wheel is higher than the lowermost end of the supporting base. The pedal rotates to overcome the force of the spring piece to drive the rotating base to rotate, when the second abutting face abuts against the upper end face of the rotating base, the lowermost end of the rolling wheel is lower than the lowermost end of the supporting base, the pedal, the support and the rotating base are relatively fixed to achieve self-locking, and the spring piece applies bias force for rotating and rising to the rotating base. And the lifting wheel is arranged on the furniture. The lifting wheel is simple in structure, easy to assemble and convenient to operate.

Description

Technical Field

[0001] The present invention relates to the technical field of wheels, in particular to a lifting wheel. Background Art

[0002] Currently, most equipment incorporates rolling elements as mobile components to facilitate relocation and repositioning. Some of these components are foldable, allowing them to retract into the equipment's base when not in use, providing stable support on the ground. However, existing rolling element connection structures often utilize multi-stage transmissions and complex locking mechanisms, making assembly and disassembly cumbersome. Maintenance requires the entire drive module to be replaced, significantly increasing operating costs. Summary of the Invention

[0003] The present invention is intended to solve one of the technical problems in the related art at least to a certain extent.For this reason, the present invention proposes a lifting wheel.

[0004] An embodiment of the present invention provides a lifting wheel for lifting and placing, wherein the lifting wheel for lifting and placing comprises:

[0005] Bracket;

[0006] A rotating seat is rotatably connected to the bracket, and a roller is provided at the lower end of the rotating seat;

[0007] A support base, mounted on the bracket;

[0008] a spring member, two ends of which are respectively connected to the bracket and the rotating seat;

[0009] a pedal rotatably connected to the bracket, the pedal having a first abutting surface and a second abutting surface;

[0010] The pedal is rotated to drive the rotating seat to rotate, and when the first abutting surface abuts against the upper end surface of the rotating seat, the lowermost end of the roller is higher than the lowermost end of the support seat;

[0011] The pedal can rotate to overcome the force of the spring member to drive the rotating seat to rotate, and when the second abutting surface abuts against the upper end surface of the rotating seat, the lowermost end of the roller is lower than the lowermost end of the support seat.

[0012] According to some embodiments of the present invention, the bracket is provided with a first axis and a second axis, the first axis and the second axis are arranged in parallel, the first axis is lower than the second axis, the first axis passes through and is rotatably connected to the rotating seat, and the second axis passes through and is rotatably connected to the pedal.

[0013] According to some embodiments of the present invention, the rotating seat is provided with a third shaft, the third shaft is lower than the first shaft, and the third shaft passes through and is rotatably connected to the roller.

[0014] According to some embodiments of the present invention, the rear side of the first abutting surface is connected to the front side of the second abutting surface, the angle between the first abutting surface and the second abutting surface is an obtuse angle, and the distance between the first abutting surface and the second axis is smaller than the distance between the second abutting surface and the second axis.

[0015] According to some embodiments of the present invention, a first through hole is provided on the upper end surface of the bracket, a first convex portion is provided on the hole wall of the first through hole, the first convex portion is inclined upward, and the upper end of the spring member is hung on the first convex portion.

[0016] According to some embodiments of the present invention, a second through hole is provided on the upper end surface of the rotating seat, a second convex portion is provided on the hole wall of the second through hole, the second convex portion is inclined downward, and the lower end of the spring member is hung on the second convex portion.

[0017] According to some embodiments of the present invention, the upper end surface of the pedal is provided with a plurality of anti-slip ridges, and the plurality of anti-slip ridges are arranged at intervals along the front-to-back direction.

[0018] According to some embodiments of the present invention, the pedal is provided with a third through hole, and the lifting wheel further includes a handle ring, and the handle ring is passed through the third through hole.

[0019] According to some embodiments of the present invention, the upper end of the bracket is rotatably connected to a mounting seat, and the mounting seat is provided with a plurality of fourth through holes, which are distributed circumferentially along the mounting seat, and the fourth through holes are used for connection with bolts.

[0020] According to some embodiments of the present invention, the support seat includes a fixing seat and a supporting foot, the fixing seat is fixedly installed on the bracket, the fixing seat has an inner cavity with an opening facing downward, the inner circumferential wall of the fixing seat is provided with a thread, the upper end of the supporting foot is provided with an external thread, the upper end of the supporting foot is inserted into the fixing seat and threadedly connected to the fixing seat, and the supporting foot can rotate up or down relative to the fixing seat.

[0021] The lifting and placing lifting wheel according to the embodiment of the present invention has at least the following technical effects:

[0022] 1. The lifting wheel is installed on the furniture. When the roller is needed, the force of the spring member is overcome to rotate the pedal to drive the rotating seat to rotate. At this time, the spring member is stretched, and the rotating seat drives the roller to rotate and descend, so that the second abutting surface abuts against the upper end surface of the rotating seat. At this time, the lowermost end of the roller is lower than the lowermost end of the support seat, the roller contacts the ground, and the pedal, bracket and rotating seat are relatively fixed to achieve self-locking. The spring member applies a biasing force to the rotating seat to rotate and rise, so that the lifting wheel can drive the furniture to move through the rotation of the roller.

[0023] 2. When the roller is no longer needed, the pedal is rotated to drive the rotating base to rotate, and the second abutment surface gradually separates from the upper end surface of the rotating base. At the same time, the rotating base is driven to rotate by the spring member, and the rotating base drives the roller to rotate and rise, so that the first abutment surface abuts against the upper end surface of the rotating base. At this time, the lowermost end of the roller is higher than the lowermost end of the support base, and the support base is in contact with the ground. This lifting wheel has a simple structure, simple assembly, and easy operation.

[0024] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0026] Figure 1 Schematic diagram of the structure of the lifting and placing wheels of some embodiments of the present invention;

[0027] Figure 2 is an exploded view of a lifting wheel for placing and placing in some embodiments of the present invention;

[0028] Figure 3 is a schematic structural diagram of the abutment between the first abutting surface and the upper end surface of the rotating seat in some embodiments of the present invention;

[0029] Figure 4 It is a schematic structural diagram of the abutment between the second abutting surface and the upper end surface of the rotating seat in some embodiments of the present invention.

[0030] Figure Number:

[0031] Bracket 100; first shaft 110; second shaft 120; first through hole 130; first protrusion 131;

[0032] Rotating seat 200; roller 210; third shaft 220; second through hole 230; second protrusion 231;

[0033] Support base 300; fixing base 310; supporting foot 320;

[0034] Pedal 400; first abutting surface 410; second abutting surface 420; anti-slip ridge 430; third through hole 440; handle ring 450;

[0035] Spring member 500 ; mounting seat 510 ; fourth through hole 520 . DETAILED DESCRIPTION

[0036] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0037] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0038] In the description of the present invention, "several" means one or more, "many" means more than two, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The use of "first" and "second" in the description is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, implicitly specifying the number of the indicated technical features, or implicitly specifying the order of the indicated technical features.

[0039] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0040] The embodiments of the present invention are further described below with reference to the accompanying drawings.

[0041] According to some embodiments of the present invention, referring to Figures 1 to 4The lifting wheel includes a bracket 100, a rotating seat 200, a support seat 300, a spring member 500 and a pedal 400. The rotating seat 200 is rotatably connected to the bracket 100, and the lower end of the rotating seat 200 is rotatably connected to the roller 210. The support seat 300 is installed on the bracket 100. The upper end of the spring member 500 is connected to the bracket 100, and the lower end of the spring member 500 is connected to the rotating seat 200. The pedal 400 is rotatably connected to the bracket 100, and the pedal 400 has a first abutting surface 410 and a second abutting surface 420. The rotation of the pedal 400 can drive the rotating seat 200 to rotate, and when the first abutting surface 410 abuts against the upper end surface of the rotating seat 200, the lowermost end of the roller 210 is higher than the lowermost end of the support seat 300. The pedal 400 rotates clockwise to overcome the force of the spring member 500 and drive the rotating base 200 to rotate. When the second abutting surface 420 abuts the upper end surface of the rotating base 200, the lowermost end of the roller 210 is lower than the lowermost end of the support base 300. The pedal 400, the bracket 100, and the rotating base 200 are relatively fixed and self-locking. The spring member 500 applies a biasing force to the rotating base 200 to rotate and rise. This lifting wheel is installed on furniture.

[0042] Reference Figure 3 and Figure 4 When the roller 210 is needed, the pedal 400 is rotated clockwise, thereby driving the rotating seat 200 to rotate clockwise. At this time, the force of the spring member 500 is overcome so that the spring member 500 is stretched, and the rotating seat 200 drives the roller 210 to rotate and descend. The roller 210 moves from Figure 3 Status turns down to Figure 4 In this state, the second abutting surface 420 of the pedal 400 abuts the upper end surface of the rotating base 200, the lowermost end of the roller 210 is lower than the lowermost end of the support base 300, and the roller 210 contacts the ground. The pedal 400, the bracket 100, and the rotating base 200 are relatively fixed to achieve self-locking. The spring member 500 applies a biasing force to the rotating base 200 to rotate and rise, thereby enabling the lifting wheel to rotate through the roller 210 to drive the furniture to move. It can be understood that when the roller 210 contacts the ground, the roller 210 is subjected to an upward force exerted by the ground, causing the upper end surface of the rotating base 200 to closely fit the second abutting surface 420 and exert an upward force on the second abutting surface 420, making it difficult for the pedal 400 to rotate relative to the rotating base 200, thereby achieving self-locking.

[0043] Reference Figure 3 and Figure 4 When the roller 210 is no longer needed, the pedal 400 is rotated counterclockwise, and the second abutting surface 420 gradually separates from the upper end surface of the rotating seat 200. At the same time, the rotating seat 200 is driven to rotate counterclockwise under the action of the spring member 500, and the rotating seat 200 drives the roller 210 to rotate and rise, and the roller 210 moves from Figure 4Status turns up to Figure 3 In this state, the first contact surface 410 of the pedal 400 contacts the upper end surface of the rotating base 200, the lowermost end of the roller 210 is higher than the lowermost end of the support base 300, and the support base 300 is in contact with the ground. It can be understood that because the first contact surface 410 and the second contact surface 420 are at a certain angle, the pedal 400 is difficult to rotate relative to the rotating base 200 without interference from external forces, causing the upper end surface of the rotating base 200 to change from contact with the first contact surface 410 to contact with the second contact surface 420, thereby achieving self-locking.

[0044] According to some embodiments of the present invention, referring to Figures 1 to 4 The bracket 100 is provided with a first shaft 110 and a second shaft 120. The first shaft 110 and the second shaft 120 are arranged in parallel. The axial directions of the first shaft 110 and the second shaft 120 are both left and right. The first shaft 110 is lower than the second shaft 120. The first shaft 110 passes through and is rotatably connected to the rotating seat 200. The second shaft 120 passes through and is rotatably connected to the pedal 400.

[0045] Preferably, refer to Figure 4 The rear side of the first abutting surface 410 is connected to the front side of the second abutting surface 420. The angle between the first abutting surface 410 and the second abutting surface 420 is θ, which is an obtuse angle. The connection between the first abutting surface 410 and the second abutting surface 420 adopts a rounded corner design, which facilitates the upper end surface of the rotating seat 200 to switch between the first abutting surface 410 and the second abutting surface 420 to have a smooth transition. The distance between the first abutting surface 410 and the second shaft 120 is smaller than the distance between the second abutting surface 420 and the second shaft 120. Since the distance between the second abutting surface 420 and the second shaft 120 is larger than the distance between the first abutting surface 410 and the second shaft 120, when the second abutting surface 420 is in contact with the upper end surface of the rotating seat 200, the distance between the upper end surface of the rotating seat 200 and the second shaft 120 is larger, that is, when the second abutting surface 420 is in contact with the upper end surface of the rotating seat 200, the roller 210 is located lower than when the first abutting surface 410 is in contact with the upper end surface of the rotating seat 200.

[0046] This technical solution utilizes the eccentric principle and the small angle self-locking principle to realize the folding and lowering of the roller 210. The lifting wheel has a simple structure, is easy to operate, and has a long service life.

[0047] According to some embodiments of the present invention, referring to Figure 1 and Figure 2 The rotating seat 200 is provided with a third shaft 220 , which is lower than the first shaft 110 . The third shaft 220 is passed through and rotatably connected to the roller 210 , so that the roller 210 is rotatably connected to the rotating seat 200 .

[0048] According to some embodiments of the present invention, referring to Figure 2 The upper end surface of the bracket 100 is provided with a first through hole 130, and the hole wall of the first through hole 130 is provided with a first protrusion 131, which is inclined upward. The upper end of the spring member 500 is hung on the first protrusion 131, so that the upper end of the spring member 500 is connected to the bracket 100, and the assembly between the spring member 500 and the first protrusion 131 is simple and easy to disassemble.

[0049] According to some embodiments of the present invention, referring to Figure 2 A second through hole 230 is provided on the upper end surface of the rotating seat 200, and a second convex portion 231 is provided on the hole wall of the second through hole 230. The second convex portion 231 is inclined downward, and the lower end of the spring member 500 is hung on the second convex portion 231, so that the lower end of the spring member 500 is connected to the rotating seat 200, and the assembly between the spring member 500 and the second convex portion 231 is simple and easy to disassemble.

[0050] According to some embodiments of the present invention, referring to Figure 2 The upper end surface of the pedal 400 is provided with a plurality of anti-skid ridges 430, which are arranged at intervals along the front-to-back direction. The anti-skid ridges 430 can play an anti-skid role, ensuring that the operator can apply force to the pedal 400 without slipping.

[0051] According to some embodiments of the present invention, referring to Figure 2 The pedal 400 is provided with a third through hole 440, and the lifting wheel further includes a handle ring 450, which is passed through the third through hole 440. The operator can apply force to the pedal 400 through the handle ring 450, and the lifting wheel can also be hung and stored through the handle ring 450.

[0052] According to some embodiments of the present invention, referring to Figure 1 and Figure 2 The upper end of the bracket 100 is rotatably connected to the mounting base 510, and the mounting base 510 is provided with a plurality of fourth through holes 520, and the plurality of fourth through holes 520 are distributed circumferentially along the mounting base 510. The fourth through holes 520 are used to connect with bolts, and the bolts are then connected to the bottom of the furniture, so that the mounting base 510 is installed on the bottom of the furniture.

[0053] According to some embodiments of the present invention, referring to Figures 1 to 4The support base 300 includes a fixing base 310 and a supporting leg 320. The fixing base 310 is fixedly mounted on the bracket 100. The fixing base 310 has an inner cavity with an opening facing downward. The inner peripheral wall of the fixing base 310 is provided with a thread, and the upper end of the supporting leg 320 is provided with an external thread. The upper end of the supporting leg 320 is inserted into the fixing base 310 and is threadedly connected to the fixing base 310. The supporting leg 320 can be rotated up or down relative to the fixing base 310. It is understood that by rotating the supporting leg 320, the supporting leg 320 can be rotated up or down relative to the fixing base 310, so as to adjust the height of the supporting leg 320 to adapt to various usage environments.

[0054] Throughout this specification, references to the term "some embodiments" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0055] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A lifting wheel, characterized in that: include: bracket (100); A rotating seat (200) is rotatably connected to the bracket (100), and a roller (210) is provided at the lower end of the rotating seat (200); A support base (300) is mounted on the bracket (100); a spring member (500), two ends of which are respectively connected to the bracket (100) and the rotating seat (200); A pedal (400) is rotatably connected to the bracket (100), and the pedal (400) has a first abutting surface (410) and a second abutting surface (420); The pedal (400) rotates to drive the rotating seat (200) to rotate, and when the first abutting surface (410) abuts against the upper end surface of the rotating seat (200), the lowermost end of the roller (210) is higher than the lowermost end of the support seat (300); The pedal (400) rotates to overcome the force of the spring member (500) and drive the rotating seat (200) to rotate, and when the second abutting surface (420) abuts against the upper end surface of the rotating seat (200), the lowermost end of the roller (210) is lower than the lowermost end of the support seat (300).

2. The lifting wheel according to claim 1, characterized in that: The bracket (100) is provided with a first shaft (110) and a second shaft (120), the first shaft (110) and the second shaft (120) are arranged in parallel, the first shaft (110) is lower than the second shaft (120), the first shaft (110) is passed through and rotatably connected to the rotating seat (200), and the second shaft (120) is passed through and rotatably connected to the pedal (400).

3. The lifting wheel according to claim 2, characterized in that: The rotating seat (200) is provided with a third shaft (220), the third shaft (220) is lower than the first shaft (110), and the third shaft (220) is passed through and rotatably connected to the roller (210).

4. The lifting wheel according to claim 2, characterized in that: The rear side of the first abutting surface (410) is connected to the front side of the second abutting surface (420), the angle between the first abutting surface (410) and the second abutting surface (420) is an obtuse angle, and the distance between the first abutting surface (410) and the second axis (120) is smaller than the distance between the second abutting surface (420) and the second axis (120).

5. The lifting wheel according to claim 1, characterized in that: The upper end surface of the bracket (100) is provided with a first through hole (130), the hole wall of the first through hole (130) is provided with a first convex portion (131), the first convex portion (131) is inclined upward, and the upper end of the spring member (500) is hung on the first convex portion (131).

6. The lifting wheel according to claim 1, characterized in that: The upper end surface of the rotating seat (200) is provided with a second through hole (230), the hole wall of the second through hole (230) is provided with a second convex portion (231), the second convex portion (231) is inclined downward, and the lower end of the spring member (500) is hung on the second convex portion (231).

7. The lifting wheel according to claim 1, characterized in that: The upper end surface of the pedal (400) is provided with a plurality of anti-slip convex strips (430), and the plurality of anti-slip convex strips (430) are arranged at intervals along the front-to-back direction.

8. The lifting wheel according to claim 1, characterized in that: The pedal (400) is provided with a third through hole (440), and the lifting wheel further comprises a handle ring (450), and the handle ring (450) is passed through the third through hole (440).

9. The lifting wheel according to claim 1, characterized in that: The upper end of the bracket (100) is rotatably connected to a mounting seat (510), and the mounting seat (510) is provided with a plurality of fourth through holes (520), and the plurality of fourth through holes (520) are distributed along the circumference of the mounting seat (510), and the fourth through holes (520) are used for connection with bolts.

10. The lifting wheel according to claim 1, characterized in that: The support base (300) comprises a fixing base (310) and a supporting leg (320), wherein the fixing base (310) is fixedly mounted on the bracket (100), the fixing base (310) has an inner cavity with an opening facing downward, the inner peripheral wall of the fixing base (310) is provided with a thread, the upper end of the supporting leg (320) is provided with an external thread, the upper end of the supporting leg (320) is inserted into the fixing base (310) and is threadedly connected to the fixing base (310), and the supporting leg (320) can be rotated upward or downward relative to the fixing base (310).

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