Wheel body assembly of power roller

Abstract

The utility model belongs to the technical field of abdominal wheel structures for bodybuilding, in particular to a wheel body component of an abdominal wheel, which comprises a wheel body, a rotating shaft penetrates through the middle of the wheel body and is rotatably connected with the wheel body, one end of the rotating shaft is provided with a positioning portion and a locking portion, the positioning portion is composed of at least one positioning end face, and the locking portion is composed of a threaded section. The positioning part is located on the rear portion of the locking part, and the positioning end face and the threaded section are independent. A step part is formed between the positioning end face and the threaded section, and the nut is connected to the threaded section. When the nut abuts against the side wall of the step part, the nut is in a locked state. The wheel body assembly of the power roller is simple and stable in structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of abdominal wheel structures for fitness, in particular to a wheel body component of an abdominal wheel. Background Art

[0002] The abdominal wheel is a kind of physical exercise equipment with simple structure, convenient application and obvious effect. When exercising, kneel on both knees, hold the handles with both hands, and place the abdominal wheel in front of the body. You can do abdominal exercises at home with the abdominal wheel, which is much better than traditional sit-ups. In order to reduce the difficulty of operation for users, elbow-supported abdominal wheels have appeared on the market, such as Chinese patent 202223039061.8, a double-wheel elbow-supported abdominal wheel. The abdominal wheel uses elbow support to perform abdominal exercises, so that beginners can also get started.

[0003] The most important part of an ab wheel is the wheel body, and the stable installation of the wheel body is particularly important. The existing wheel body shaft first mills or turns the end faces at both ends of the shaft, and then turns the threads. The shaft thread section produced by the above steps also has end faces on both sides, and there is no distinction between the thread section and the end face. When the nut is locked on the thread, there is no positioning effect, and the nut is often not tightened enough or too tight. Summary of the invention

[0004] The utility model aims to provide a wheel body component of an abdominal wheel with a stable structure.

[0005] The purpose of the utility model is achieved in this way:

[0006] A wheel assembly of an abdominal wheel comprises a wheel body, a rotating shaft is passed through the middle of the wheel body, the rotating shaft and the wheel body are rotatably connected, a positioning part and a locking part are arranged at one end of the rotating shaft, the positioning part is composed of at least one positioning end face, the locking part is composed of a threaded section, the positioning part is located at the rear of the locking part, and the positioning end face and the threaded section are independent;

[0007] A step portion is formed between the positioning end face and the threaded section, and the nut is connected to the threaded section; when the nut abuts against the side wall of the step portion, the nut is in a locked state.

[0008] The two ends of the rotating shaft are symmetrically provided with the positioning part and the locking part; or, one end of the rotating shaft is provided with the positioning part and the locking part, and the other end of the rotating shaft is only provided with the locking part.

[0009] The locking portion is at least two positioning end surfaces arranged around the circumference of the rotating shaft.

[0010] A bearing is arranged between the rotating shaft and the wheel body.

[0011] A spring is arranged between the rotating shaft and the wheel body. The spring is located inside the wheel body, one end of the spring is fixed on the wheel body, and the other end of the spring is fixed on the rotating shaft.

[0012] It includes a wheel frame, which is located on both sides of the wheel body. Both ends of the rotating shaft are fixed on the wheel frame so that the wheel body can be rotated and arranged inside the wheel frame; both ends of the rotating shaft pass through the through holes of the wheel frame and let the locking part be exposed outside, the through holes of the wheel frame are provided with locking end faces, and the positioning end face of the rotating shaft abuts against the corresponding locking end face.

[0013] The through hole of the wheel frame comprises a circular hole section and a limiting section, and the limiting section is provided with the locking end face; the inner diameter of the circular hole section is greater than or equal to the outer diameter of the rotating shaft.

[0014] When the nut is locked on the threaded section of the rotating shaft, the nut simultaneously presses against the side wall of the step portion and the side wall of the wheel frame.

[0015] The same wheel carrier is provided with two wheel bodies in front and behind.

[0016] One wheel body is provided with a spring, while the other wheel body is not provided with a spring.

[0017] Compared with the prior art, the utility model has the following outstanding and beneficial technical effects:

[0018] 1. The utility model divides the end of the rotating shaft into independent positioning parts and locking parts. The positioning part limits the rotation of the rotating shaft, and the locking part is connected to the nut to achieve locking. The locking part is a threaded section of a complete thread circle, and the nut is connected to the complete threaded section for better tightness; and a step part is formed between the positioning end face and the threaded section. When the nut abuts against the side wall of the step part, the nut is in a locked state. The setting of the step part allows the nut to be locked in a standard position, ensuring the stability of the nut locking.

[0019] 2. The locking part of the utility model is at least two positioning end faces arranged around the circumference of the rotating shaft, and the multiple positioning end faces are simultaneously limited to ensure the stable limiting of the rotating shaft. The positioning end faces are limited on the locking end faces of the wheel frame perforation, thereby ensuring that the rotating shaft and the wheel frame are fixed.

[0020] 3. When the nut of the utility model is locked on the threaded section of the rotating shaft, the nut presses against the side wall of the step portion and the side wall of the wheel frame at the same time. Preferably, the through hole of the wheel frame has a circular hole section and a limiting section, and the limiting section is provided with the locking end face. When the nut locks the rotating shaft, the side of the wheel frame is pushed by the nut and presses against the step surface between the circular hole section and the limiting section. When the nut is locked, the wheel frame, the rotating shaft and the nut are stably fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is one of the structural schematic diagrams of the utility model;

[0022] Figure 2 This is the second internal structure of the utility model;

[0023] Figure 3 It is a schematic diagram of the internal structure of the utility model in a spring-free state;

[0024] Figure 4 yes Figure 3 A schematic diagram of the enlarged structure at point A;

[0025] Figure 5 It is a schematic diagram of the internal structure of the utility model in a spring state;

[0026] Figure 6 It is a schematic diagram of the rotating shaft structure of the utility model;

[0027] Figure 7 It is one of the explosion structure schematic diagrams of the utility model;

[0028] Figure 8 yes Figure 7 A schematic diagram of the enlarged structure at B;

[0029] Fig. 9 This is the second schematic diagram of the explosion structure of the utility model;

[0030] Fig.10 It is a schematic diagram of the explosion internal structure of the utility model;

[0031] Fig.11 This is one of the schematic diagrams of the structure of the use state of the utility model;

[0032] Fig.12 This is the second schematic diagram of the structure of the utility model in use state.

[0033] In the figure: 1-wheel body; 11-side cover; 2-wheel frame; 21-through hole; 211-circular hole section; 212-limiting section; 3-rotating shaft; 30-bearing; 31-positioning end face; 32-threaded section; 33-step portion; 4-nut; 5-spring; 6-elbow support plate; 7-handle. DETAILED DESCRIPTION

[0034] The present invention will be further described below with reference to the accompanying drawings. Figure 1-12 As shown:

[0035] A wheel assembly of an abdominal wheel includes a wheel body 1. The wheel body can be a cylindrical part formed by fixing multiple parts to each other. The wheel body can be formed by fixing three parts, namely, side covers on both sides and a central cylindrical body. The wheel body can also be formed by fixing two parts, namely, a side cover and a wheel body main body. A rotating shaft 3 is passed through the middle of the wheel body 1. The rotating shaft 3 and the wheel body 1 are rotatably connected. A positioning part and a locking part are arranged at one end of the rotating shaft 3. The positioning part is composed of at least one positioning end face 31. The locking part is composed of a threaded section 32. The positioning part is located at the rear of the locking part and the positioning end face and the threaded section are independent. Through the independent arrangement, the threaded section 32 forms a complete threaded ring, so that the nut 4 and the threaded section 32 are more tightly connected. Moreover, a step portion 33 is formed between the positioning end face 31 and the threaded section 32, and the nut 4 is connected to the threaded section 32. The positioning is performed by the step portion 33. When the nut 4 abuts against the side wall of the step portion 33, the nut 4 is in a locked state. Through this structure, the locking of the nut 4 can be controlled by the manufacturer before leaving the factory, which is conducive to mass production and ensures that the nut 4 is effectively locked. After the nut 4 is locked, it is pressed against the surface of the step portion 33. The nut 4 and the step portion 33 are pressed surface to surface, which also has an anti-loosening effect.

[0036] The two ends of the rotating shaft are symmetrically provided with the positioning part and the locking part; or, one end of the rotating shaft is provided with the positioning part and the locking part, and the other end of the rotating shaft is only provided with the locking part. Both schemes are possible, and the manufacturer can freely choose one of them according to the time situation.

[0037] The locking portion is at least two positioning end faces 31 arranged around the circumference of the shaft, preferably two positioning end faces 31 are symmetrically arranged, and the positioning of the shaft 3 is limited simultaneously by multiple positioning end faces 31 to ensure stable limiting of the shaft 3.

[0038] A bearing 30 is arranged between the rotating shaft 3 and the wheel body 1 .

[0039] It includes a wheel frame 2, which is located on both sides of the wheel body 1. Both ends of the rotating shaft 3 are fixed on the wheel frame 2 so that the wheel body 1 can be rotatably arranged on the inner side of the wheel frame 2; both ends of the rotating shaft 3 pass through the through hole 21 of the wheel frame and expose the locking part to the outside, the through hole 21 of the wheel frame is provided with a locking end face, and the positioning end face 31 of the rotating shaft abuts against the corresponding locking end face.

[0040] The through hole 21 of the wheel frame has a circular hole section 211 and a limiting section 212, and the limiting section 212 is provided with the locking end face; the inner diameter of the circular hole section 211 is greater than or equal to the outer diameter of the rotating shaft 3. A step surface is formed between the circular hole section 211 and the limiting section 212, and when the nut 4 is locked on the threaded section 32 of the rotating shaft, the nut 4 simultaneously presses against the side wall of the step portion 33 and the side wall of the wheel frame 2. The side wall of the wheel frame 2 is pressed against the step surface between the circular hole section and the limiting section under the push of the nut 4, so that the wheel frame, the rotating shaft and the nut are stably fixed.

[0041] Two wheel bodies 1 are arranged in front and back of the same wheel frame 2. One wheel body has a spring 5, and the other wheel body has no spring. A spring 5 is arranged between the rotating shaft 3 and the wheel body 1, and the spring 5 is located inside the wheel body, and one end of the spring is fixed to the wheel body, and the other end of the spring is fixed to the rotating shaft.

[0042] like Fig.11 and Fig.12 As shown, the complete abdominal wheel includes an elbow support plate 6; a handle 7 is arranged in front of the elbow support plate 6, and at least one wheel frame 2 is rotatably or fixedly arranged below the elbow support plate 6.

[0043] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A wheel assembly of an abdominal wheel, comprising a wheel body (1), a rotating shaft (3) passing through the middle of the wheel body (1), and a rotating shaft (3) and the wheel body (1) being rotatably connected, characterized in that: A positioning portion and a locking portion are provided at one end of the rotating shaft (3); the positioning portion is composed of at least one positioning end face (31); the locking portion is composed of a threaded section (32); the positioning portion is located at the rear of the locking portion, and the positioning end face (31) and the threaded section (32) are independent; A step portion (33) is formed between the positioning end surface (31) and the threaded section (32), and the nut (4) is connected to the threaded section (32); when the nut (4) abuts against the side wall of the step portion (33), the nut (4) is in a locked state.

2. The wheel assembly of the abdominal wheel according to claim 1, characterized in that: The two ends of the rotating shaft are symmetrically provided with the positioning part and the locking part; or, one end of the rotating shaft is provided with the positioning part and the locking part, and the other end of the rotating shaft is only provided with the locking part.

3. The wheel assembly of the abdominal wheel according to claim 1 or 2, characterized in that: The locking portion is at least two positioning end surfaces (31) arranged around the circumference of the rotating shaft (3).

4. The wheel assembly of the abdominal wheel according to claim 3, characterized in that: A bearing (30) is arranged between the rotating shaft (3) and the wheel body (1).

5. The wheel assembly of the ab wheel according to claim 1, 2 or 4, characterized in that: A spring (5) is arranged between the rotating shaft (3) and the wheel body (1); the spring (5) is located inside the wheel body, one end of the spring is fixed on the wheel body, and the other end of the spring is fixed on the rotating shaft.

6. The wheel assembly of the ab wheel according to claim 1, 2 or 4, characterized in that: The invention comprises a wheel frame (2), the wheel frame (2) being located on both sides of a wheel body (1), and the two ends of a rotating shaft (3) being fixed on the wheel frame (2) so that the wheel body (1) is rotatably arranged inside the wheel frame (2); the two ends of the rotating shaft (3) pass through a through hole (21) of the wheel frame and a locking portion is exposed outside, the through hole (21) of the wheel frame is provided with a locking end face, and the positioning end face (31) of the rotating shaft (3) abuts against the corresponding locking end face.

7. The wheel assembly of the abdominal wheel according to claim 6, characterized in that: The through hole (21) of the wheel frame comprises a circular hole section (211) and a limiting section (212), and the limiting section (212) is provided with the locking end surface; the inner diameter of the circular hole section is greater than or equal to the outer diameter of the rotating shaft.

8. The wheel assembly of the abdominal wheel according to claim 6, characterized in that: When the nut (4) is locked on the threaded section (32) of the rotating shaft, the nut (4) simultaneously presses against the side wall of the step portion (33) and the side wall of the wheel frame (2).

9. The wheel assembly of the abdominal wheel according to claim 7 or 8, characterized in that: Two wheel bodies (1) are arranged front and rear on the same wheel frame (2).

10. The wheel assembly of the abdominal wheel according to claim 9, characterized in that: One wheel body is provided with a spring, while the other wheel body is not provided with a spring.

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