A convenient moving device for a treadmill universal wheel
By designing a treadmill caster device that uses a screw-driven rod to move the connecting rod and frame, the problem of unstable placement caused by the inability to retract the casters is solved. This allows for convenient disassembly and concealment of the casters, improving the stability and safety of the treadmill.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO ELAIR IND CO LTD
- Filing Date
- 2025-06-06
- Publication Date
- 2026-08-04
AI Technical Summary
The casters on existing treadmills cannot be effectively retracted when not in use, resulting in instability, easy slippage, and compromised safety.
A convenient moving device was designed, comprising a screw, a rod, a connecting rod, a frame, and casters. The screw drives the rod to move laterally, which in turn moves the connecting rod and the frame up and down. The casters can be hidden within the treadmill base. High-strength rubber material and anti-slip texture are used to increase friction and ensure stability and safety.
It enables easy disassembly and concealment of the casters, improves the stability of the treadmill, reduces the risk of slipping, and enhances safety and ease of movement.
Smart Images

Figure CN224585258U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of treadmills, and in particular to a convenient movement device for treadmill casters. Background Technology
[0002] Treadmills are a common piece of fitness equipment, widely used in homes and gyms. However, due to their large size and weight, they are quite inconvenient to move. While some treadmills on the market are equipped with casters, existing caster systems still have some problems in use. For example, some casters cannot be effectively retracted when not in use, making the treadmill unstable and prone to slipping. Utility Model Content
[0003] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a convenient treadmill caster wheel device.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A convenient moving device for treadmills with universal wheels includes a treadmill base, with support blocks connected to the four corners of the treadmill base, a screw rotatably connected to the treadmill base, a rod threadedly connected to the screw, and connecting rods rotatably connected to one end and the other end of the rod. The two sets of connecting rods are rotatably connected to the same frame, and the frame is provided with multiple sets of universal wheels.
[0006] Preferably, multiple sets of first sliding grooves are provided at one end and the other end of the frame, and a first slider is slidably connected to each of the multiple sets of first sliding grooves, and the multiple sets of first sliders are respectively connected to the corresponding universal wheels.
[0007] Preferably, the treadmill base is connected to multiple sets of vertical rods, and each end of the frame has a through hole, through which a vertical rod passes, and the multiple sets of vertical rods are connected to the treadmill base.
[0008] Preferably, the treadmill base is connected to multiple sets of slides, and a second slide groove is provided at one end and the other end of the rod. The multiple sets of slides are slidably connected to the corresponding second slide grooves.
[0009] Preferably, a handle is connected to the screw.
[0010] Preferably, the casters are made of high-strength rubber with anti-slip texture on the surface. While ensuring flexible steering, they can effectively increase the friction with the ground, prevent slippage during treadmill movement, and improve the safety and stability of movement.
[0011] Preferably, the frame is square-shaped.
[0012] The beneficial effects of this utility model are as follows:
[0013] 1. By coordinating the screw, rod, connecting rod, frame, and casters, the frame and casters are placed within the space created by the support block at the treadmill base contacting the ground. This allows these components to be hidden within the original footprint of the treadmill, eliminating the need for additional space. The screw drives the rod to move laterally, which in turn pulls the connecting rod to lower the frame and casters, replacing the support block in contact with the ground, or to move them upwards to bring the support block and casters into contact with the ground. This ensures stability and prevents slippage.
[0014] 2. By cooperating with the frame, casters, first slide groove, and first slider, and by sliding the first slide groove and the first slider together, the casters can be quickly assembled and disassembled from the frame. When the casters are damaged, they can be quickly replaced. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of a convenient moving device for a treadmill with universal wheels proposed in this utility model;
[0016] Figure 2 for Figure 1 A structural diagram of the treadmill base, support blocks, and frame.
[0017] Figure 3 for Figure 1 A structural diagram of the central screw, frame, and casters;
[0018] Figure 4 for Figure 3 A schematic diagram of the structure of the central caster wheel, the first slide groove, and the first slider;
[0019] Figure 5 for Figure 3 A schematic diagram of the structure of the second slide, the slide rail, and the handle.
[0020] In the diagram: 1. Treadmill base; 2. Support block; 3. Screw; 4. Rod; 5. Connecting rod; 6. Frame; 7. Caster wheel; 8. First slide groove; 9. First slider; 10. Second slide groove; 11. Slide track; 12. Handle; 13. Through hole; 14. Vertical rod. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0022] Example 1, referring to Figures 1 to 5A convenient treadmill casting device includes a treadmill base 1, with support blocks 2 connected to each of the four corners of the base 1. When the treadmill is stationary, the support blocks 2 have a large contact area with the ground, providing stable support and ensuring that the treadmill will not shake or tilt during use, thus ensuring user safety. The support blocks are typically made of sturdy and wear-resistant materials, such as high-strength engineering plastics or metal, to withstand the weight of the treadmill and the user. A screw 3 is rotatably connected to the base 1, and a rod 4 is threadedly connected to the screw 3. The screw 4 converts its rotational motion into linear lateral movement of the rod 4 through its threaded connection to the rod 4. One end of the rod 4 is rotatably connected to a connecting rod 5, and the two sets of connecting rods 5 are rotatably connected to the same frame 6. The rod 4 moves laterally under the drive of the screw 3, while the connecting rods 5 transmit and convert force. When the rod 4 moves laterally, it drives the two sets of connecting rods 5 to move. Furthermore, driven by the rod 4, the frame 6 can be pulled to move up and down. The connections between the connecting rod 5, the rod body 4, and the frame 6 all utilize movable joints, such as pin connections, to ensure flexible rotation during movement. The frame 6 is equipped with multiple sets of casters 7. The rod body 4 is driven laterally by the screw 3, which in turn drives the connecting rod 5 to move the frame 6 and the casters 7 vertically. When the treadmill is not needed, the casters 7 can be moved upwards, allowing the support block 2 to contact the ground, ensuring stability and preventing slippage. This effectively reduces the risk of users falling and getting injured due to treadmill slippage, providing a safer user experience.
[0023] In this embodiment, multiple sets of first sliding grooves 8 are provided at one end and the other end of the frame 6. Each set of first sliding grooves 8 is slidably connected to a first slider 9, and each set of first sliders 9 is connected to a corresponding caster wheel 7. This design greatly facilitates the installation and removal of the caster wheels 7. When the caster wheels 7 become worn or damaged after long-term use and need to be replaced, simply slide the caster wheel 7 along the direction of the first sliding groove 8, causing the first slider 9 to slide out of the first sliding groove 8, and the damaged caster wheel 7 can be easily removed. When installing a new universal wheel 7, align the first slider 9 on the new universal wheel 7 with the first slide groove 8, and then gently push it in until the first slider 9 is fully embedded in the first slide groove 8. This completes the replacement operation, greatly saving maintenance time and costs. The treadmill base 1 is connected to multiple sets of vertical rods 14. One end of the frame 6 and the other end are provided with through holes 13. The vertical rods 14 pass through the multiple sets of through holes 13. The multiple sets of vertical rods 14 are connected to the treadmill base 1. The cooperation between the vertical rods 14 and the through holes 13 plays a guiding and limiting role. As the frame 6 moves up and down with the pull of the connecting rod 5, the vertical rod 14 is inserted into the through hole 13 of the frame 6, ensuring that the frame 6 can only move vertically up and down along the direction of the vertical rod 14, avoiding swaying or deviation, and further improving the stability and reliability of the entire device. Multiple sets of slide rails 11 are connected to the treadmill base 1. A second slide groove 10 is provided at one end and the other end of the rod 4. The multiple sets of slide rails 11 are slidably connected to the corresponding second slide grooves 10. The sliding connection of the slide rails 11 and the second slide grooves 10 provides a more stable and smooth movement trajectory for the lateral movement of the rod 4. When the screw 3 drives the rod 4 to move laterally, the slide rail 11 and the second slide groove 10 fit tightly together, reducing the friction and swaying of the rod 4 during movement, making the movement of the rod 4 more stable, thus ensuring the operating accuracy and stability of the entire device. A handle 12 is connected to the screw 3, and the universal wheel 7 is made of high-strength rubber with anti-slip textures on the surface. The high-strength rubber material ensures that the casters 7 have excellent wear resistance and pressure resistance, capable of withstanding the weight of the treadmill and various impacts generated during movement. The anti-slip texture on the surface ensures the casters 7 can turn flexibly while effectively increasing friction with the ground. When moving the treadmill, the anti-slip texture makes close contact with the ground, increasing grip and preventing slippage. Whether on smooth wooden floors or tile floors, it ensures safety and stability during movement, allowing users to move the treadmill easily and safely. The U-shaped frame 6 reduces overall weight.
[0024] The working principle of this embodiment is as follows: When in use, the user can stand directly on the treadmill base 1 to walk or run. When movement is required, the handle 12 drives the screw 3 to rotate, and the screw 3 drives the rod 4 to move laterally. In this way, the rod 4 pulls two sets of connecting rods 5, which can drive the frame 6 to drive multiple sets of universal wheels 7 to replace the support block 2 and contact the ground, so that movement can be made. If the universal wheel 7 is damaged, the universal wheel 7 drives the first slider 9 to slide out of the first slide groove 8, so that the universal wheel 7 can be disassembled and reassembled.
[0025] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A convenient moving device for a treadmill with universal wheels, comprising a treadmill base (1), characterized in that, The treadmill base (1) is connected to support blocks (2) at all four corners. The treadmill base (1) is rotatably connected to a screw (3). The screw (3) is threadedly connected to a rod body (4). One end of the rod body (4) and the other end are rotatably connected to connecting rods (5). The two sets of connecting rods (5) are rotatably connected to the same frame (6). The frame (6) is provided with multiple sets of universal wheels (7).
2. The treadmill universal wheel convenient movement device according to claim 1, characterized in that, Multiple sets of first sliding grooves (8) are provided at one end and the other end of the frame (6). Multiple sets of first sliding grooves (8) are slidably connected to first sliders (9). Multiple sets of first sliders (9) are respectively connected to the corresponding universal wheels (7).
3. The treadmill universal wheel convenient movement device according to claim 1, characterized in that, The treadmill base (1) is connected to multiple sets of vertical rods (14). The frame (6) has through holes (13) at one end and the other end. The multiple sets of through holes (13) are connected to the vertical rods (14). The multiple sets of vertical rods (14) are connected to the treadmill base (1).
4. The treadmill universal wheel convenient movement device according to claim 1, characterized in that, The treadmill base (1) is connected to multiple sets of slides (11), and the rod (4) is provided with a second slide groove (10) at one end and the other end. The multiple sets of slides (11) are slidably connected to the corresponding second slide groove (10).
5. A convenient movement device for a treadmill with universal wheels according to claim 1, characterized in that, A handle (12) is connected to the screw (3).
6. A convenient movement device for a treadmill with universal wheels according to claim 1, characterized in that, The universal wheels (7) are made of high-strength rubber and have anti-slip textures on the surface. While ensuring flexible steering, they can effectively increase the friction with the ground, prevent slippage during treadmill movement, and improve the safety and stability of movement.
7. A convenient movement device for a treadmill with universal wheels according to claim 1, characterized in that, The frame (6) is shaped like a square.