An abdominal wheel

Abstract

An ab wheel includes a support component and a walking mechanism. The support component includes a main body, two support parts, and two elbow support parts. The two support parts are symmetrically arranged on both sides of the main body and extend laterally. The two elbow support parts are respectively movably and adjustablely arranged on the two support parts. The support parts are provided with positioning elements and springs that drive the positioning elements to protrude from the top surface of the support parts. The bottom surface of the elbow support parts is provided with a plurality of positioning grooves arranged laterally at intervals. The positioning elements can be embedded in the positioning grooves to restrict the lateral movement of the elbow support parts. The walking mechanism includes a wheel frame and at least one walking wheel. The wheel frame is arranged at the bottom of the support component. The walking wheel is rotatably arranged on the wheel frame. The walking wheel includes a wheel body, a wheel axle, and a booster spring. The wheel body is provided with an involute groove centered on the wheel axle. A slide seat is fixedly provided on the wheel axle. The slide seat is provided with a slide groove extending radially along the wheel axle. A limiter is movably arranged in the slide groove. The limiter extends into the involute groove to restrict the walking wheel from rotating in the opposite direction.

Description

Technical Field

[0001] This utility model relates to an ab wheel. Background Technology

[0002] Chinese patent document CN222871255U discloses a multifunctional fitness device, including a walking mechanism with wheels and a support component. The walking mechanism is located at the bottom of the support component. The device is characterized by further including a push-up component, which is detachably mounted on the support component. The push-up component includes an elbow support portion and a grip portion. One end of the elbow support portion has an elbow support surface, and the other end has a grip portion. When the push-up component is mounted on the support component, the elbow support surface is located at the top of the support component, allowing the fitness device to be used as an elbow-supported ab wheel and the push-up component to be used independently as a push-up aid. The fitness device can be used for abdominal training or push-up training, making it more practical. However, in the above solution, when the fitness device is used as an elbow support ab wheel, the distance between the left and right elbow supports cannot be adjusted, which cannot meet the needs of different users. In addition, an assist spring is set in the walking wheel. One end of the assist spring is connected to the wheel axle and the other end is connected to the wheel body. The two ends of the assist spring unfold as the walking wheel rotates counterclockwise and compress as the wheel body rotates clockwise. However, if the ab wheel is accidentally rotated backward when using the above ab wheel, the assist spring will be damaged, affecting its service life. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing an ab wheel with adjustable elbow support spacing and the ability to prevent the walking wheels from turning backward.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] An ab wheel includes a support component and a walking mechanism disposed at the bottom of the support component. The support component comprises a main body, two support parts, and two elbow support parts. The two support parts are symmetrically disposed on both sides of the main body and extend laterally. The two elbow support parts are respectively and laterally adjustable on the two support parts. Each support part is provided with a positioning element and a spring that drives the positioning element to protrude from the top surface of the support part. The bottom surface of each elbow support part has multiple laterally spaced positioning grooves, into which the positioning element can be embedded to restrict the lateral movement of the elbow support part. The walking mechanism... The device includes a wheel frame and at least one traveling wheel. The wheel frame is located at the bottom of a support component. The traveling wheel is rotatably mounted on the wheel frame. The traveling wheel includes a wheel body, an axle, and a power-assisting spring. The axle is fixedly mounted on the wheel frame. The wheel body is rotatably mounted on the axle. One end of the power-assisting spring is connected to the axle, and the other end is connected to the wheel body. The wheel body is provided with an involute groove centered on the axle. A slide seat is fixedly mounted on the axle. The slide seat is provided with a slide groove extending radially along the axle. A limiter is movably mounted in the slide groove. The limiter extends into the involute groove to restrict the traveling wheel from rotating in the opposite direction.

[0006] The bottom of the elbow support component has a guide groove that is adapted to the support portion and extends laterally. The bottom of the elbow support component is provided with a limiting member, which abuts against the bottom of the support portion to prevent the elbow support component from detaching upward from the support portion.

[0007] The limiting component is a screw, which is locked at the bottom of the elbow support component and the screw nut abuts against the bottom of the support part.

[0008] The positioning element is a sphere, and the support portion has a through mounting hole. The positioning element and the spring are disposed in the mounting hole. The upper end of the mounting hole is narrowed so that part of the positioning element is exposed on the top surface of the support portion. The bottom of the support portion is provided with a sealing element to close the lower end of the mounting hole.

[0009] The main body is provided with a handrail on the front side. When in use, the user's elbows are supported on the elbow support component and the hands are gripped on the handrail.

[0010] A silent sleeve is fixedly installed on the axle and sleeved outside the power assist spring. The sliding groove seat and the silent sleeve are integrally formed.

[0011] The wheel body includes a first end cap, a cylindrical body, and a second end cap. The first end cap closes one end of the cylindrical body, and the second end cap closes the other end of the cylindrical body. The involute groove is formed on the inner surface of one of the first end cap and the second end cap.

[0012] This utility model includes four walking wheels arranged in a matrix.

[0013] This utility model has the following beneficial effects:

[0014] The elbow support component can be laterally adjusted using a positioning element, positioning groove, and spring, thereby adjusting the spacing of the elbow support components to suit the needs of different exercisers. When adjustment is needed, a certain lateral force is applied to the elbow support component to compress the positioning element and move laterally. During this process, the positioning element descends and compresses the spring to disengage from the positioning groove and embed itself into another positioning groove, thus achieving lateral adjustment of the elbow support component. In addition, a limiting element extends into the involute groove to restrict the reverse rotation of the walking wheel. When the walking wheel returns to its initial position under the drive of the assist spring, the limiting element is located at or near the end of the involute groove. If the walking wheel rotates backward, the limiting element abuts against the end of the involute groove, preventing the walking wheel from rotating backward. When the walking wheel rotates forward, the limiting element moves along the groove under the drive of the involute groove without obstructing the normal rotation of the walking wheel, thus preventing the walking wheel from rotating backward and damaging the assist spring. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings.

[0016] Figure 1 This is a perspective view of the present invention.

[0017] Figure 2 This is a perspective view of the present invention from another angle.

[0018] Figure 3 This is a top view of the supporting component.

[0019] Figure 4 for Figure 3 A sectional view along the AA direction.

[0020] Figure 5 A three-dimensional view of the supporting components.

[0021] Figure 6 This is an exploded view of the supporting components.

[0022] Figure 7 This is a front view of the traveling wheel.

[0023] Figure 8 for Figure 7 BB-direction sectional view.

[0024] Figure 9 This is an exploded view of the components of the traveling wheel.

[0025] Figure 10 This is an exploded view of the components of the traveling wheel from another perspective. Detailed Implementation

[0026] Reference Figures 1 to 10 As shown, an ab wheel includes a support component 1 and a walking mechanism 2.

[0027] The support component C includes a main body 11, two support parts 12, and two elbow support components 2. The two support parts 12 are symmetrically arranged on both sides of the main body 11 and extend laterally. The main body 11 and the two support parts 12 are integrally injection molded. The two elbow support components 2 are respectively movably and adjustablely arranged on the two support parts 12. The bottom of the elbow support component 2 has a guide groove 23 that is adapted to the support part 12 and extends laterally. The bottom of the elbow support component 2 is provided with a limiting member 211. The limiting member 211 partially abuts against the bottom of the support part 12 to prevent the elbow support component 2 from detaching from the support part 12 upward. The limiting member 211 is a screw. The screw is locked at the bottom of the elbow support component 2 and the screw nut abuts against the bottom of the support part 12. The elbow support component 2 includes an elbow support plate 21 and a buffer pad 22 provided on the top surface of the elbow support plate 21.

[0028] The support part 12 is provided with a positioning member 51 and a spring 52 that drives the positioning member 51 to protrude from the top surface of the support part 12. The bottom surface of the elbow support member 2 is provided with three horizontally spaced positioning grooves 212. The positioning member 51 can be embedded in the positioning grooves 212 to restrict the lateral movement of the elbow support member 2. The positioning member 51 is a sphere. The support part 12 is formed with a vertically penetrating mounting hole 121. The positioning member 51 and the spring 52 are provided in the mounting hole 121. The upper end of the mounting hole 121 is narrowed so that part of the positioning member 51 is exposed on the top surface of the support part 12. The bottom of the support part 12 is provided with a closing member 53 that closes the lower end of the mounting hole 121. The front side of the main body 11 is provided with a handrail 4. When in use, the user's elbow is supported on the elbow support member 2 and the hand is gripped on the handrail 4.

[0029] The walking mechanism 3 includes a wheel frame 31 and four walking wheels 32. The wheel frame 31 is located at the bottom of the support component C. The four walking wheels 32 are rotatably mounted on the wheel frame 31 and arranged in a matrix. Each walking wheel 32 includes a wheel body D, a wheel axle 323, and a booster spring 326. The wheel axle 323 is fixedly mounted on the wheel frame 31, and the wheel body D is rotatably mounted on the wheel axle 323. One end of the booster spring 326 is connected to the wheel axle 323, and the other end is connected to the wheel body D. The wheel body D includes a first end cap 329, a cylindrical body 321, and a second end cap 322. The first end cap 329 closes one end of the cylindrical body 321, and the second end cap 322... 2. The other end of the closed cylindrical body 321 is sealed. The first end cap 329 is integrally formed with the cylindrical body 321. The inner side of the second end cap 322 forms an involute groove 328 centered on the wheel axle 323. A sliding seat is fixedly provided on the wheel axle 323. A sliding groove 325 extending radially along the wheel axle 323 is provided on the sliding seat. A limiting member 327 is movably provided in the sliding groove 325. The limiting member 327 extends into the involute groove 328 to limit the reverse rotation of the traveling wheel 32. A silent sleeve 324 sleeved on the outside of the power assist spring 326 is fixedly provided on the wheel axle 323. The sliding seat and the silent sleeve 324 are integrally formed.

[0030] The elbow support component 2 can be laterally adjusted using the positioning element 51, positioning groove 212, and spring 52, thereby adjusting the spacing of the elbow support component 2 to suit the needs of different exercisers. When adjustment is required, a certain lateral force is applied to the elbow support component 2 to compress the positioning element 51 and move laterally. During this process, the positioning element 51 descends and compresses the spring 52 to disengage from the positioning groove 212 and embed into another positioning groove 212, thus achieving the lateral adjustment of the elbow support component 2. In addition, the limiting element 327 extends into the involute groove 328 to restrict walking. When wheel 32 rotates in the reverse direction, and the traveling wheel 32 returns to its initial position under the drive of the assist spring 326, the limiting member 327 is located at or near the end of the involute groove 328. At this time, if the traveling wheel 32 rotates in reverse, the limiting member 327 will abut against the end of the involute groove 328, preventing the traveling wheel 32 from rotating in reverse. When the traveling wheel 32 rotates in the forward direction, the limiting member 327 will move along the slide groove 325 under the drive of the involute groove 328, without hindering the normal rotation of the traveling wheel 32. This can prevent the traveling wheel 32 from rotating in reverse and damaging the assist spring 326.

[0031] The above description is merely a preferred embodiment of the present utility model, and therefore cannot be construed as limiting the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the patent application and the contents of the specification of the present utility model shall still fall within the scope of the patent of the present utility model.

Claims

1. An abdominal wheel comprising a support member and a running mechanism provided at the bottom of the support member, characterized in that: The support component includes a main body, two support parts, and two elbow support parts. The two support parts are symmetrically arranged on both sides of the main body and extend laterally. The two elbow support parts are respectively movably and adjustablely arranged on the two support parts. The support parts are provided with positioning elements and springs that drive the positioning elements to protrude from the top surface of the support parts. The bottom surface of the elbow support parts is provided with multiple positioning grooves arranged laterally at intervals. The positioning elements can be embedded in the positioning grooves to restrict the lateral movement of the elbow support parts. The walking mechanism includes a wheel frame and at least one walking wheel. The wheel frame is located at the bottom of the support component. The walking wheel is rotatably mounted on the wheel frame. The walking wheel includes a wheel body, a wheel axle, and a booster spring. The wheel axle is fixedly mounted on the wheel frame. The wheel body is rotatably mounted on the wheel axle. One end of the booster spring is connected to the wheel axle and the other end is connected to the wheel body. The wheel body is provided with an involute groove centered on the wheel axle. A slide seat is fixedly mounted on the wheel axle. The slide seat is provided with a slide groove extending radially along the wheel axle. A limit element is movably arranged in the slide groove. The limit element extends into the involute groove to restrict the reverse rotation of the walking wheel.

2. The Swiss ball according to claim 1, wherein: The bottom of the elbow support component has a guide groove that is adapted to the support portion and extends laterally. The bottom of the elbow support component is provided with a limiting member, which abuts against the bottom of the support portion to prevent the elbow support component from detaching upward from the support portion.

3. The Swiss ball according to claim 2, wherein: The limiting component is a screw, which is locked at the bottom of the elbow support component and the screw nut abuts against the bottom of the support part.

4. The Swiss ball of claim 1, wherein: The positioning element is a sphere, and the support portion has a through mounting hole. The positioning element and the spring are disposed in the mounting hole. The upper end of the mounting hole is narrowed so that part of the positioning element is exposed on the top surface of the support portion. The bottom of the support portion is provided with a sealing element to close the lower end of the mounting hole.

5. The Swiss ball of claim 1, wherein: The main body is provided with a handrail on the front side. When in use, the user's elbows are supported on the elbow support component and the hands are gripped on the handrail.

6. An abdominal wheel according to any one of claims 1 to 4, wherein: A silent sleeve is fixedly installed on the axle and sleeved outside the power assist spring. The sliding groove seat and the silent sleeve are integrally formed.

7. An abdominal wheel according to any one of claims 1 to 4, wherein: The wheel body includes a first end cap, a cylindrical body, and a second end cap. The first end cap closes one end of the cylindrical body, and the second end cap closes the other end of the cylindrical body. The involute groove is formed on the inner surface of one of the first end cap and the second end cap.

8. An ab wheel according to any one of claims 1 to 4, characterized in that: It includes four traveling wheels arranged in a matrix.

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