Mechanical lifting and placing wheel
By using a mechanical lifting and placing wheel design, and utilizing the rotational connection between the support base and the pedal, the self-locking and unlocking of the roller is achieved, which solves the problems of complex structure and short service life of existing rollers, and provides a convenient and stable support solution for movement.
Patent Information
- Application Number
- CN202423220915.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Existing roller structures are complex and difficult to assemble, have a short service life, and cannot effectively meet the needs for convenient movement and stable support.
A mechanical lifting and lowering wheel was designed. By utilizing the rotational connection between the support base and the pedal, the wheel moves within a long through hole via a guide shaft, achieving self-locking and unlocking of the roller, simplifying the structure and extending its service life.
It achieves convenient operation and self-locking function of the roller, has a simple structure, long service life, and meets the needs of convenient movement and stable support.
Smart Images
Figure CN223508013U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wheel technology, and in particular to a mechanical lifting and placing wheel. Background Technology
[0002] Existing tables, cabinets, and chairs typically have casters for easy movement, and these casters usually feature rotation and folding mechanisms. When needed, the casters rotate and fold to lift and support the object, enabling it to move. Once the object is in position, the casters rotate and fold to lower it, allowing it to make direct contact with the ground. Currently, most commercially available caster structures that achieve rotation and folding use springs, making the internal structure complex and difficult to assemble, and the spring structure has a short lifespan. Utility Model Content
[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, this invention proposes a mechanical lifting and placing wheel.
[0004] This utility model embodiment provides a mechanical lifting and placing wheel, which is installed on an object. The mechanical lifting and placing wheel includes:
[0005] Mounting base, which can be detachably mounted on the object;
[0006] A support base is rotatably connected to the mounting base. The lower end of the support base is provided with a roller. The support base is provided with an elongated through hole, which has a first end and a second end.
[0007] A pedal, rotatably connected to the mounting base, is provided with a guide shaft inserted into the elongated through hole. Rotation of the pedal causes the guide shaft to move along the extension direction of the elongated through hole, and also causes the support base to rotate relative to the mounting base. The pedal has a first abutment surface and a second abutment surface, wherein:
[0008] When the pedal rotates to make the first contact surface abut against the support surface of the support base, the guide shaft is located at the first end of the elongated through hole, the lowest end of the roller is lower than the lowest end of the object and supports the object, and the mounting base, the support base and the pedal are relatively fixed to achieve self-locking;
[0009] When the pedal rotates to make the second contact surface abut against the support surface of the support base, the guide shaft is located at the second end of the elongated through hole, the lowest end of the roller is higher than the lowest end of the object, and the mounting base, the support base and the pedal are relatively fixed to achieve self-locking.
[0010] The mechanical lifting and placing wheel according to this utility model embodiment has at least the following technical effects: The mechanical lifting and placing wheel is installed on an object. When the object needs to be moved, rotating the pedal moves the guide axis towards the first end of the elongated through hole. The support base and roller follow the pedal's rotation. The roller gradually rotates downwards and contacts the ground. The roller continues to apply downward force, thereby lifting the object. Finally, the first contact surface abuts against the support surface of the support base. At this time, the mounting base, support base, and pedal are relatively fixed and achieve self-locking. When the roller needs to be retracted, rotating the pedal moves the guide axis towards the second end of the elongated through hole. The support base and roller follow the pedal's rotation. The roller gradually rotates upwards and leaves the ground. The object gradually moves downwards and contacts the ground. Finally, the second contact surface abuts against the support surface of the support base. At this time, the mounting base, support base, and pedal are relatively fixed and achieve self-locking. This mechanical lifting and placing wheel has a simple structure, is easy to operate, and has a long service life.
[0011] According to some embodiments of the present invention, the mounting base is provided with a first shaft and a second shaft, the first shaft is higher than the second shaft, the guide shaft is higher than the second shaft and lower than the first shaft, the first shaft passes through and is rotatably connected to the pedal, and the second shaft passes through and is rotatably connected to the support base.
[0012] According to some embodiments of this utility model, the axial directions of the first shaft, the second shaft, and the guide shaft are all in the front-back direction.
[0013] According to some embodiments of the present invention, the side of the first abutting surface near the mounting base is connected to one side of the second abutting surface, and the included angle between the first abutting surface and the second abutting surface is an obtuse angle.
[0014] According to some embodiments of the present invention, the mounting base is provided with a plurality of mounting holes, which are used to be installed on the object in conjunction with bolts.
[0015] According to some embodiments of the present invention, the end of the pedal away from the mounting base is provided with an inclined portion, and the inclined portion gradually tilts downward in the direction away from the mounting base.
[0016] According to some embodiments of the present invention, the upper end of the support base is provided with a notch, and when the second abutting surface abuts against the supporting surface of the support base and the guide shaft is located at the second end of the elongated through hole, the first shaft is located within the notch.
[0017] According to some embodiments of the present invention, the second end of the elongated through hole is located on the side of the first end of the elongated through hole away from the mounting base.
[0018] According to some embodiments of the present invention, the elongated through hole is arc-shaped and the center of the arc is located below the elongated through hole.
[0019] According to some embodiments of the present invention, the upper end surface of the pedal is provided with a groove.
[0020] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0021] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0022] Figure 1 This is a schematic diagram of the mechanical lifting and placing wheel according to some embodiments of this utility model;
[0023] Figure 2 This is a schematic diagram of the structure of some embodiments of the present invention, showing that the bottom end of the roller is lower than the bottom end of the object;
[0024] Figure 3 This is a schematic diagram of the mechanical lifting and placing wheel according to some embodiments of this utility model;
[0025] Figure 4 This is a schematic diagram of the structure of some embodiments of the present invention, showing that the bottom end of the roller is higher than the bottom end of the object;
[0026] Figure 5 This is an exploded view of a mechanical lifting and placing wheel according to some embodiments of this utility model.
[0027] Icon labels:
[0028] Mounting base 100, object 110, first shaft 121, second shaft 122, mounting hole 130;
[0029] Support base 200, support surface 201, roller 210, elongated through hole 220, notch 230;
[0030] The pedal 300, guide shaft 310, first abutment surface 321, second abutment surface 322, inclined part 330, and groove 340. Detailed Implementation
[0031] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0032] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.
[0033] In the description of this utility model, "multiple" means two or more; "greater than," "less than," and "exceeding" are understood to exclude the stated number; "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.
[0034] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0035] The embodiments of this utility model will be further described below with reference to the accompanying drawings.
[0036] According to some embodiments of this utility model, refer to Figures 1 to 5A mechanical lifting and placing wheel is mounted on the object 110. The mechanical lifting and placing wheel includes a mounting base 100, a support base 200, and a pedal 300. The mounting base 100 is detachably mounted on the object 110. The support base 200 is rotatably connected to the mounting base 100. The lower end of the support base 200 is provided with a roller 210. The support base 200 is provided with an elongated through hole 220, which has a first end and a second end, with the first end located to the right of the second end. The pedal 300 is rotatably connected to the mounting base 100. The pedal 300 is provided with a guide shaft 310, which is inserted into the elongated through hole 220. Rotation of the pedal 300 can drive the guide shaft 310 to move along the extension direction of the elongated through hole 220, and drive the support base 200 to rotate relative to the mounting base 100. The pedal 300 has a first abutment surface 321 and abutment surface 322. When the pedal 300 rotates and the first abutment surface 321 abuts against the support surface 201 of the support base 200, the guide shaft 310 is located at... At the first end of the elongated through hole 220, the lowest end of the roller 210 is lower than the lowest end of the object 110 and supports the object 110. The mounting base 100, the support base 200 and the pedal 300 are relatively fixed to achieve self-locking. When the pedal 300 rotates so that the second abutting surface 322 abuts against the support surface 201 of the support base 200, the guide shaft 310 is located at the second end of the elongated through hole 220, the lowest end of the roller 210 is higher than the lowest end of the object 110, and the mounting base 100, the support base 200 and the pedal 300 are relatively fixed to achieve self-locking.
[0037] Reference Figure 2 , Figure 4 and Figure 5 When it is necessary to move object 110, roller 210 needs to support object 110. Rotating pedal 300 counterclockwise moves guide shaft 310 toward the first end of elongated through hole 220. Support base 200 and roller 210 follow pedal 300 in a counterclockwise rotation. Roller 210 gradually rotates downwards and contacts the ground. Roller 210 continues to apply downward force, thus lifting the object, ultimately causing the first contact surface 321 to abut against and fit against the support surface 201 of support base 200. The mechanical lifting wheel... Figure 4 The state changes to Figure 2 The mounting base 100, support base 200, and pedal 300 are in a relatively fixed state, achieving self-locking. This can be understood as referring to... Figure 2 and Figure 5 When the roller 210 supports the object 110, the roller 210 is subjected to an upward force applied by the ground, which causes the support seat 200 to fit tightly against the first contact surface 321 and apply an upward force to it, making it difficult for the pedal 300 to rotate relative to the support seat 200, thereby completing the self-locking.
[0038] Reference Figure 2 , Figure 4 and Figure 5When it is necessary to retract the roller 210, it needs to be retracted upwards. Rotating the pedal 300 clockwise moves the guide shaft 310 toward the second end of the elongated through-hole 220. The support base 200 and roller 210 follow the pedal 300 in a clockwise direction. The roller 210 gradually rotates upwards, thus lifting off the ground, while the object gradually moves downwards and contacts the ground. Finally, the second contact surface 322 abuts against the support surface 201 of the support base 200, and the mechanical lifting and lowering wheel... Figure 2 The state changes to Figure 4 The mounting base 100, support base 200, and pedal 300 are in a relatively fixed state, achieving self-locking. This can be understood as referring to... Figure 4 and Figure 5 The second abutment surface 322 of the pedal 300 is attached to the support surface 201 and applies a downward force to the support surface 201. Since the first abutment surface 321 and the second abutment surface 322 have a certain angle, the pedal 300 is difficult to rotate relative to the support seat 200 to make the first abutment surface 321 contact the support surface 201 without the interference of external forces, thereby completing the self-locking.
[0039] This technical solution utilizes the principles of eccentricity and small-angle self-locking to achieve the raising and lowering of the roller 210. This mechanical raising and lowering roller has a simple structure, is easy to operate, and has a long service life.
[0040] According to some embodiments of this utility model, refer to Figure 1 and Figure 5 The mounting base 100 is provided with a first shaft 121 and a second shaft 122. The first shaft 121 is higher than the second shaft 122. The guide shaft 310 is higher than the second shaft 122 and lower than the first shaft 121. The first shaft 121 passes through and is rotatably connected to the pedal 300, and the second shaft 122 passes through and is rotatably connected to the support base 200. The axes of the first shaft 121, the second shaft 122, and the guide shaft 310 are all in the front-back direction. When the pedal 300 rotates around the first shaft 121, it can drive the support base 200 to rotate around the second shaft 122, causing the guide shaft 310 to move along the extension direction of the elongated through hole 220.
[0041] Preferred, refer to Figure 5 The side of the first abutment surface 321 closest to the mounting base 100 is connected to the side of the second abutment surface 322, that is, the right side of the first abutment surface 321 is connected to the left side of the second abutment surface 322. The included angle between the first abutment surface 321 and the second abutment surface 322 is an obtuse angle, thereby ensuring that the support surface 201 has a certain resistance when switching between contacting the first abutment surface 321 and contacting the second abutment surface 322, thus ensuring self-locking. When it is necessary to switch the support surface 201 between contacting the first abutment surface 321 and contacting the second abutment surface 322, the operator can switch by rotating the pedal 300 to overcome the resistance.
[0042] According to some embodiments of this utility model, refer to Figure 1 The mounting base 100 is provided with multiple mounting holes 130, which are used to be installed on the object 110 with bolts, so that the mounting base 100 is fixedly connected to the object 110.
[0043] According to some embodiments of this utility model, refer to Figure 2 and Figure 4 The pedal 300 is provided with an inclined part 330 at the end away from the mounting base 100, that is, the left end of the pedal 300 is provided with an inclined part 330. The inclined part 330 gradually tilts downward in the direction away from the mounting base 100, so that the operator can pull up or press the pedal 300 through the inclined part 330.
[0044] According to some embodiments of this utility model, refer to Figure 4 and Figure 5 The upper end of the support base 200 is provided with a notch 230. When the second abutting surface 322 abuts against the support surface 201 of the support base 200 and the guide shaft 310 is located at the second end of the elongated through hole 220, the first shaft 121 is located inside the notch 230. The first shaft 121 abuts against the notch 230, and the guide shaft 310 abuts against the leftmost end of the elongated through hole 220. The cooperation between the first shaft 121 and the guide shaft 310 can prevent the pedal 300 from continuing to rotate in the clockwise direction.
[0045] According to some embodiments of this utility model, refer to Figure 5 The elongated through hole 220 is arc-shaped with the center of the arc located below the elongated through hole 220, so that the guide shaft 310 can move along the extension direction of the elongated through hole 220 when it rotates with the pedal 300, thus avoiding jamming.
[0046] According to some embodiments of this utility model, refer to Figure 1 and Figure 3 The upper surface of the pedal 300 is provided with a groove 340. It can be understood that when the operator steps on the pedal 300, the presence of the groove 340 makes it less likely for the operator's foot to slip, ensuring that the operator can step on the pedal 300.
[0047] In this specification, the reference to the term "some embodiments" means that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above 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 one or more embodiments or examples.
[0048] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A mechanical lifting and placing wheel, mounted on an object (110), characterized in that, The mechanical lifting and placing wheels include: Mounting base (100) is detachably mounted to the object (110); A support base (200) is rotatably connected to the mounting base (100). The lower end of the support base (200) is provided with a roller (210). The support base (200) is provided with an elongated through hole (220), which has a first end and a second end. A pedal (300) is rotatably connected to the mounting base (100). The pedal (300) is provided with a guide shaft (310), which is inserted into the elongated through hole (220). Rotation of the pedal (300) can drive the guide shaft (310) to move along the extension direction of the elongated through hole (220), and drive the support base (200) to rotate relative to the mounting base (100). The pedal (300) has a first abutment surface (321) and a second abutment surface (322), wherein: When the pedal (300) rotates to make the first contact surface (321) abut against the support surface (201) of the support base (200), the guide shaft (310) is located at the first end of the elongated through hole (220), the lowest end of the roller (210) is lower than the lowest end of the object (110) and supports the object (110), and the mounting base (100), the support base (200) and the pedal (300) are relatively fixed to achieve self-locking; When the pedal (300) rotates to make the second abutment surface (322) abut against the support surface (201) of the support base (200), the guide shaft (310) is located at the second end of the elongated through hole (220), the lowest end of the roller (210) is higher than the lowest end of the object (110), and the mounting base (100), the support base (200) and the pedal (300) are relatively fixed to achieve self-locking.
2. The mechanical lifting and placing wheel according to claim 1, characterized in that, The mounting base (100) is provided with a first shaft (121) and a second shaft (122). The first shaft (121) is higher than the second shaft (122). The guide shaft (310) is higher than the second shaft (122) and lower than the first shaft (121). The first shaft (121) passes through and is rotatably connected to the pedal (300). The second shaft (122) passes through and is rotatably connected to the support base (200).
3. The mechanical lifting and placing wheel according to claim 2, characterized in that, The axes of the first shaft (121), the second shaft (122), and the guide shaft (310) are all in the front-back direction.
4. The mechanical lifting and placing wheel according to claim 1, characterized in that, The side of the first abutting surface (321) near the mounting base (100) is connected to the side of the second abutting surface (322), and the included angle between the first abutting surface (321) and the second abutting surface (322) is an obtuse angle.
5. The mechanical lifting and placing wheel according to claim 1, characterized in that, The mounting base (100) is provided with a plurality of mounting holes (130), which are used to be installed on the object (110) with bolts.
6. The mechanical lifting and placing wheel according to claim 1, characterized in that, The pedal (300) has an inclined portion (330) at one end away from the mounting base (100), and the inclined portion (330) gradually tilts downward in the direction away from the mounting base (100).
7. The mechanical lifting and placing wheel according to claim 2, characterized in that, The upper end of the support base (200) is provided with a notch (230). When the second abutting surface (322) abuts against the support surface (201) of the support base (200) and the guide shaft (310) is located at the second end of the elongated through hole (220), the first shaft (121) is located inside the notch (230).
8. The mechanical lifting and placing wheel according to claim 1, characterized in that, The second end of the elongated through hole (220) is located on the side of the elongated through hole (220) away from the mounting base (100).
9. The mechanical lifting and placing wheel according to claim 8, characterized in that, The elongated through hole (220) is arc-shaped and the center of the arc is located below the elongated through hole (220).
10. The mechanical lifting and placing wheel according to claim 1, characterized in that, The upper end surface of the pedal (300) is provided with a groove (340).