Wheel body of power roller

Abstract

The utility model belongs to the technical field of abdominal wheel structures for bodybuilding, in particular to a wheel body of an abdominal wheel, which comprises a wheel body, a rotating shaft penetrates through the middle of the wheel body, the rotating shaft is rotatably connected with the wheel body, and a spring is arranged between the rotating shaft and the wheel body. The spring is located in the wheel body, one end of the spring is fixed to the wheel body, and the other end of the spring is fixed to the rotating shaft. The spring is formed by transversely surrounding a metal wire; a sleeve is arranged on the side edge of the wheel body and extends into one end of the spring. A gap is formed between the spring and the sleeve, the wheel body rotates so that the spring can retract inwards, and the spring can abut against the outer side wall of the sleeve after deformation. Or no gap exists between the spring and the sleeve, and the spring abuts against the outer side of the sleeve. The wheel body of the power roller is simple in structure and provided with the reset spring.

Description

Technical Field

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

[0002] The ab wheel is a physical exercise device with a simple structure, easy application, and obvious effect. When exercising, kneel on your knees, hold the handles with both hands, and place the ab wheel in front of your body. You can use the ab wheel to do abdominal exercises at home, and the effect is much better than traditional sit-ups. In order to reduce the difficulty of operation for users, elbow-supported ab wheels have appeared on the market, such as Chinese patent 202223039061.8, a double-wheel elbow-supported ab wheel. The ab wheel uses elbow support to perform abdominal exercises, so that beginners can also get started. In fact, regardless of the above-mentioned ab wheel, in order to facilitate users to exercise, the manufacturer will set a reset spring in the wheel body of the ab wheel to help users complete the exercise.

[0003] Such as Chinese patent CN202222366581.3, a kind of abdominal wheel. A return spring is arranged in the wheel body of the abdominal wheel, and the return spring is limited by a positioning sleeve. If there is no positioning sleeve, the return spring is directly installed in the wheel body of the abdominal wheel, and the return spring is not positioned. The return spring will be twisted and deformed during the deformation process, thereby hitting the rotating shaft or the wheel body of the abdominal wheel, thereby generating a rattling noise. By setting a positioning sleeve, the deformation process of the return spring is more stable, and no noise is generated. However, the structure of the wheel body of the abdominal wheel also has certain shortcomings: during installation, the return spring needs to be inserted into the positioning sleeve, and then locked by a fastener. This assembly step requires manual alignment. After the return spring and the positioning sleeve are sleeved, they are installed in the wheel body of the abdominal wheel. The installation space is small, which is not conducive to locking the fasteners, so the assembly efficiency is low. Summary of the invention

[0004] The utility model aims to provide a wheel body of an abdominal fitness wheel with a simple structure and a specific return spring.

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

[0006] A wheel body of an abdominal wheel, comprising a wheel body, a rotating shaft passing through the middle of the wheel body, the rotating shaft and the wheel body being rotatably connected, a spring being arranged between the rotating shaft and the wheel body, the spring being located inside the wheel body, one end of the spring being fixed on the wheel body, and the other end of the spring being fixed on the rotating shaft; the spring being formed by a metal wire being wound transversely; a sleeve being arranged on the side of the wheel body, and the sleeve extending into one end of the spring;

[0007] There is a gap between the spring and the sleeve, and the wheel body rotates so that the spring contracts, and the spring can be pressed against the outer wall of the sleeve after deformation; or there is no gap between the spring and the sleeve, and the spring presses against the outer side of the sleeve.

[0008] The first spring coil and / or the second spring coil may rest against the sleeve, while the remaining spring coils are not in contact with the sleeve.

[0009] The diameter of the sleeve increases continuously from the outside to the inside.

[0010] The first spring coil on one side of the sleeve has the smallest diameter, and the spring coils farther away from the sleeve have larger diameters.

[0011] The diameter of the spring coils at both ends of the spring is small, and the diameter of the spring coils closer to the middle of the spring is larger.

[0012] The wheel body includes a first side cover, a fixing position is arranged on the inner side of the first side cover, and a fastener fixes one end of the spring on the fixing position; the rotating shaft passes through the first side cover, and the fastener fixes the other end of the spring on the rotating shaft; the rotating shaft, the first side cover and the spring form a whole under the fixation of the fastener.

[0013] The wheel body comprises a main body, which is composed of an integrally formed second side cover and a cylinder body, and the main body and the first side cover are fixed to form the wheel body; a cylindrical non-slip soft rubber is arranged on the outer side of the cylinder body.

[0014] A step portion is formed at the connection position between the second side cover and the cylinder body, and the anti-slip soft rubber sleeve is arranged on the cylinder body and limited between the step portion and the first side cover.

[0015] There is a gap between the spring coils.

[0016] The spring coils are lubricated.

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

[0018] 1. The utility model limits the spring by means of a sleeve, and the spring directly abuts against the sleeve or abuts against the sleeve after deformation; the two ends of the spring are fixed by fasteners, and the sleeve is used to limit the position of the spring, thereby ensuring the structural stability of the spring in the static state and the deformed state, and the spring will not deform excessively and produce a rattling noise. The sleeve is integrally formed on the side cover, and no additional components are required, so the structure is simpler, which is conducive to reducing the manufacturer's manufacturing cost.

[0019] 2. The first spring coil and / or the second spring coil of the utility model can be against the sleeve, and the remaining spring coils do not contact the sleeve. In order to avoid excessive restriction of the spring, only 1-2 spring coils need to be limited by the sleeve, so that the spring can play a better reset effect. Preferably, the sleeve has a continuously changing diameter from the outside to the inside, and the side wall of the sleeve is inclined, so as to ensure that only the first spring coil will be against the sleeve.

[0020] 3. The wheel body of the utility model includes a first side cover, the inner side of which is provided with a fixing position, and a fastener fixes one end of the spring to the fixing position; the rotating shaft passes through the first side cover, and the fastener fixes the other end of the spring to the rotating shaft; the rotating shaft, the first side cover and the spring are fixed to form a whole under the fastening of the fastener. After forming the whole, it can be fixed to the main part of the wheel body to complete the installation, and the overall assembly process is simple, which improves the assembly efficiency.

[0021] 4. The utility model has a gap between the spring coils, through which the noise generated by the friction between the spring coils during the spring deformation process is avoided. In addition, the spring coils are coated with lubricating oil, which effectively avoids product noise. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 This is the second internal structure of the utility model;

[0024] Figure 3 This is the third partial structure of the utility model;

[0025] Figure 4 It is a schematic diagram of the explosion structure of the utility model;

[0026] Figure 5 yes Figure 4 A schematic diagram of the enlarged structure at point A;

[0027] Figure 6 It is a schematic diagram of the explosion internal structure of the utility model;

[0028] Figure 7 This is one of the schematic diagrams of the use state of the utility model;

[0029] Figure 8 This is the second schematic diagram of the use state of the utility model.

[0030] In the figure: 1-wheel body; 11-main body; 111-second side cover; 112-cylinder body; 113-step portion;

[0031] 12-anti-slip soft rubber; 13-first side cover; 131-fixed position; 132-sleeve; 2-rotating shaft; 21-bearing; 3-spring; 31-spring side cover fixed end; 32-spring rotating shaft fixed end; 4-screw; 5-elbow support plate; 6-handle; 7-wheel frame; L-gap. DETAILED DESCRIPTION

[0032] The present invention will be further described below with reference to the accompanying drawings. Figure 1-8 As shown:

[0033] A wheel body of an abdominal wheel comprises a wheel body 1, a rotating shaft 2 is passed through the middle of the wheel body 1, a bearing is arranged between the rotating shaft 2 and the wheel body 1, the rotating shaft and the wheel body are rotatably connected, a spring 3 is arranged between the rotating shaft 2 and the wheel body 1, the spring 3 is located inside the wheel body, one end of the spring is fixed on the wheel body 1, and the other end of the spring is fixed on the rotating shaft 2; the spring 3 is formed by a metal wire being wound transversely; a sleeve 132 is arranged on the side of the wheel body 1, and the sleeve 132 extends into one end of the spring 3;

[0034] There is a gap L between the spring 3 and the sleeve 132. The wheel body rotates so that the spring retracts. After the spring is deformed, it can rest against the outer wall of the sleeve; or, there is no gap between the spring and the sleeve, and the spring is pressed against the outer side of the sleeve. Both schemes are acceptable. As a preference, during actual installation, there is a gap L between the spring and the sleeve. The spring is inevitably subject to a certain dimensional error due to the spring machine. Setting the gap can make the sleeve more convenient to install and better adaptable. During use, the spring can be deformed and retracted to rest against the sleeve. During use, the two ends of the spring are locked by fasteners, and the middle part of the spring is positioned by the sleeve. The spring is limited at multiple points, and the spring has strong stability. The spring will not twist or collide excessively laterally during rotation, so it will not make a clicking noise.

[0035] The first spring coil and / or the second spring coil can be against the sleeve 132, and the remaining spring coils do not contact the sleeve 132. Only 1-2 spring coils at the end are limited, which does not affect the deformation of the remaining spring coils and can better exert the effect of the spring. Preferably, only the first spring coil at the end needs to be limited. The following structure is set so that the sleeve only limits one spring coil: a. The sleeve 132 is set to form an inclined surface, and the diameter of the sleeve increases continuously from the outside to the inside. b. The diameter of the first spring coil on one side of the sleeve is the smallest, and the diameter of the spring coil farther away from the sleeve is larger; or, the diameter of the spring coils at both ends of the spring is small, and the diameter of the spring coil closer to the middle of the spring is larger.

[0036] By setting the spring 3 so that the diameter of the middle spring coil is large and the diameter of the spring coils on both sides is small, the diameter of the middle spring coil is increased, so that the spring can have a larger deformation range, so that the abdominal wheel can rotate more circles.

[0037] The wheel body 1 includes a first side cover 13, and a fixing position 131 is provided on the inner side of the first side cover 13, and a fastener fixes one end of the spring to the fixing position 131; the rotating shaft 2 passes through the first side cover 13, and the fastener fixes the other end of the spring to the rotating shaft 2; the rotating shaft 2, the first side cover 13 and the spring 3 form a whole under the fixation of the fastener. After forming the whole, it can be fixed to the main body 11 of the wheel body to complete the installation. The overall assembly process is simple, which improves the assembly efficiency. There is no need to fix the spring in the small space of the wheel body by fasteners. The fasteners can be common components such as screws 4, bolts, rivets, etc.

[0038] The wheel body 1 comprises a main body 11, which is composed of an integrally formed second side cover 111 and a cylinder 112. The main body 11 and the first side cover 13 are fixed to form the wheel body 1; a cylindrical non-slip soft rubber 12 is arranged outside the cylinder 112. The main body 11 can also be formed by the second side cover and the cylinder being fixed to each other, and the integral molding cost is lower.

[0039] The second side cover 111 and the cylinder 112 are connected to form a step portion 113, and the anti-skid soft rubber 12 is sleeved on the cylinder 112 and limited between the step portion 113 and the first side cover 13. The anti-skid soft rubber 12 is limited on both sides by the step portion 113 and the first side cover 13 to prevent the anti-skid soft rubber 12 from detaching from the wheel body 1.

[0040] There is a gap between the spring coils. Lubricating oil is applied to the spring coils. This structure reduces the friction noise between the spring coils.

[0041] like Figure 7-8 As shown, the complete abdominal wheel includes an elbow support plate 5; a handle 6 is arranged in front of the elbow support plate 5, at least one wheel frame 7 is arranged below the elbow support plate 5, and the wheel body 1 is rotatably arranged on the wheel frame 7.

[0042] 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 body of an abdominal wheel, comprising a wheel body (1), a rotating shaft (2) passing through the middle of the wheel body (1), the rotating shaft (2) and the wheel body (1) being rotatably connected, a spring (3) being arranged between the rotating shaft (2) and the wheel body (1), the spring being located inside the wheel body, one end of the spring being fixed on the wheel body, and the other end of the spring being fixed on the rotating shaft; characterized in that: The spring (3) is formed by a metal wire that is wound transversely; a sleeve (132) is provided on the side of the wheel body (1), and the sleeve (132) extends into one end of the spring; There is a gap (L) between the spring (3) and the sleeve (132), and the wheel body (1) rotates so that the spring (3) retracts, and the spring (3) can be pressed against the outer wall of the sleeve (132) after deformation; or there is no gap between the spring and the sleeve, and the spring is pressed against the outer side of the sleeve.

2. The wheel body of the abdominal wheel according to claim 1, characterized in that: The first spring coil and / or the second spring coil may rest against the sleeve (132), while the remaining spring coils do not contact the sleeve.

3. The wheel body of the abdominal wheel according to claim 2, characterized in that: The diameter of the sleeve (132) increases continuously from the outside to the inside.

4. The wheel body of the abdominal wheel according to claim 2 or 3, characterized in that: The first spring coil on one side of the sleeve has the smallest diameter, and the spring coils farther away from the sleeve have larger diameters.

5. The wheel body of the abdominal wheel according to claim 2 or 3, characterized in that: The diameter of the spring coils at both ends of the spring is small, and the diameter of the spring coils closer to the middle of the spring is larger.

6. The wheel body of the abdominal wheel according to claim 1, 2 or 3, characterized in that: The wheel body (1) comprises a first side cover (13), a fixing position (131) is arranged on the inner side of the first side cover (13), and a fastener fixes one end of a spring on the fixing position; the rotating shaft (2) passes through the first side cover (13), and the fastener fixes the other end of the spring on the rotating shaft; the rotating shaft (2), the first side cover (13) and the spring (3) are fixed to form a whole by the fastener.

7. The wheel body of the abdominal wheel according to claim 6, characterized in that: The wheel body (1) comprises a main body (11), the main body (11) being composed of an integrally formed second side cover (111) and a cylinder (112), the main body (11) and the first side cover (13) being fixed to form the wheel body (1); a cylindrical anti-slip soft rubber (12) is arranged on the outer side of the cylinder (112).

8. The wheel body of the abdominal wheel according to claim 6, characterized in that: A step portion (113) is formed at the connection position between the second side cover (111) and the cylinder (112), and the anti-slip soft rubber (12) is sleeved on the cylinder and limited between the step portion (113) and the first side cover (13).

9. The wheel body of the abdominal wheel according to claim 1, 2, 3, 7 or 8, characterized in that: There is a gap between the spring coils.

10. The wheel body of the abdominal wheel according to claim 6, characterized in that: The spring coils are lubricated.

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