Anti-backing abdominal roller

Abstract

An anti-backing abdominal roller comprises a roller body and a roller shaft, the roller body is rotatably arranged on the roller shaft, a power-assisted elastic piece is arranged between the roller body and the roller shaft, the anti-backing abdominal roller is characterized by further comprising a driving plate and a shifting piece, the driving plate is rotatably arranged on the roller shaft, the shifting piece is fixedly arranged on the roller body, a shifting groove and a rotation stopping part are formed on the driving plate, and the rotation stopping part is fixedly arranged on the driving plate. When the shifting piece rotates along with the wheel body, the shifting piece can be matched with the shifting groove to drive the shifting disc to rotate, and when the shifting piece rotates to abut against the rotation stopping part, the shifting piece cannot continue to rotate and can only rotate reversely, so that when the anti-reverse abdominal wheel is used for doing abdominal exercise, the shifting disc and the shifting piece are matched to limit the number of turns of rotation of the wheel body, and therefore the anti-reverse abdominal wheel is convenient to use. Therefore, a user cannot continue to push the anti-reverse power roller after pushing the anti-reverse power roller to a certain distance, the stroke of the anti-reverse power roller can be limited, the structure is simple, the manufacturing cost is low, the applicability is higher, the anti-reverse power roller at the initial position can be limited to rotate backwards, and the power assisting elastic piece can be effectively prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to an anti-backward abdominal fitness wheel. Background Art

[0002] Chinese patent document CN112090033A discloses an abdominal wheel, comprising a wheel body, a wheel axle and two handles, wherein the wheel body is rotatably arranged on the wheel axle, and the two handles are arranged at both ends of the wheel axle, and the characteristics are as follows: a limit sleeve is fixedly provided on the wheel axle, and a spirally extending track groove is formed on the outer peripheral surface of the limit sleeve, and a slider which can move in a direction parallel to the wheel axle is provided in the wheel body, and the slider has a driving part extending into the track groove, and the slider cooperates with the track groove to limit the rotation stroke of the wheel body; when the wheel body rotates relative to the wheel axle, the slider can be driven by the track groove to move in a direction parallel to the wheel axle, and the track groove is provided with a starting end and an ending end, so that the slider cooperates with the track groove to limit the rotation stroke of the wheel body, and by setting a reasonable rotation stroke, the elastic reset member can be limited from being reversely twisted, and the elastic reset member can be effectively protected, and the elastic reset member here can be a spring, a spring or other elastic member.

[0003] The above scheme can limit the rotational travel of the wheel body and protect the elastic reset member, but the structure of this scheme is relatively complex and the production cost is relatively high. It is more suitable for a grip-type anti-retrogression abdominal wheel with a single-wheel structure. Utility Model Content

[0004] The utility model aims to provide an anti-backward abdominal wheel which has a simple structure, low cost, can limit the stroke and protect the power-assisting elastic member.

[0005] The utility model is realized by the following technologies:

[0006] The anti-backward abdominal fitness wheel comprises a wheel body and a wheel axle, the wheel body is rotatably arranged on the wheel axle, and an assist elastic member is arranged between the wheel body and the wheel axle, and is characterized in that: it also comprises a dial and a toggle member, the dial is rotatably arranged on the wheel axle, the toggle member is fixedly arranged on the wheel body, a toggle groove and a stop portion are formed on the dial, and when the toggle member rotates with the wheel body, it can cooperate with the toggle groove to drive the dial to rotate; when the toggle member rotates to abut against the stop portion, the toggle member cannot continue to rotate and can only rotate in the reverse direction. In this way, when the anti-backward abdominal fitness wheel is used to do abdominal fitness exercises, the dial and the toggle member can cooperate to limit the number of circles of rotation of the wheel body, so that the user cannot continue to push the anti-backward abdominal fitness wheel after pushing it to a certain distance, and the travel of the anti-backward abdominal fitness wheel can be limited. The structure is simple, the manufacturing cost is low, and the applicability is stronger. Moreover, the anti-backward abdominal fitness wheel in the initial position will be restricted from rotating backward, and the assist elastic member can be effectively prevented from being damaged.

[0007] The toggle member is a toggle rod with a circular cross section.

[0008] The toggle lever is arranged in parallel with the wheel axle, so that the toggle lever can better toggle the dial to rotate.

[0009] The toggle groove is an arc-shaped groove matched with the toggle rod.

[0010] The dial is a circular structure, and the outer peripheral surface of the dial includes a toggle section and a stop section. The toggle section is formed with a plurality of toggle grooves arranged at intervals. The circular structure of the dial is more suitable for rotation, and the provision of a plurality of toggle grooves allows the toggle rod to be better embedded in the toggle groove.

[0011] It also includes a sleeve, the wheel body is a hollow structure, the sleeve is fixed on the wheel axle and is located in the wheel body, the assisting elastic member is a torsion spring, the torsion spring is arranged in the sleeve, one end of the torsion spring is fixedly connected to the wheel axle, and the other end is fixedly connected to the wheel body, so that when the anti-backward abdominal wheel is pushed forward, the torsion spring will be elastically deformed under force, thereby providing a certain elastic assisting effect to the anti-backward abdominal wheel movement.

[0012] The dial is rotatably arranged on the sleeve, and the rotation axis of the dial is parallel to the wheel axle, so that when the wheel body rotates, the toggle rod will not tilt relative to the dial and cause jamming.

[0013] Handles are arranged at both ends of the wheel axle.

[0014] It also includes an elbow support component and an armrest, wherein the armrest is arranged on the elbow support component, and the two ends of the wheel axle are fixedly arranged on the bottom of the elbow support component.

[0015] The wheel body is a hollow structure, and the shifting member is formed on the inner wall of the wheel body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of the first embodiment.

[0017] Figure 2 It is a three-dimensional diagram from another viewing angle of the first embodiment.

[0018] Figure 3 It is a cross-sectional view of the first embodiment.

[0019] Figure 4 It is a structural schematic diagram of the toggle rod abutting against the anti-rotation section in embodiment 1.

[0020] Figure 5 It is a cross-sectional view of a wheel body of embodiment 1.

[0021] Figure 6 This is a front view of the toggle rod of the first embodiment abutting against the stop section.

[0022] Figure 7 This is a front view of the toggle rod of the first embodiment leaning against the toggle groove.

[0023] Figure 8 This is a partial component exploded view of Example 1.

[0024] Fig. 9 This is a partial component exploded view of embodiment 1 from another perspective.

[0025] Fig.10 It is a structural schematic diagram of the second embodiment in which the toggle rod abuts against the anti-rotation section. DETAILED DESCRIPTION

[0026] Embodiment 1, refer to Figures 1 to 9 As shown, an anti-backward abdominal wheel comprises a wheel body 1, a wheel axle 11, an elbow support component 5 and an armrest 6. The wheel body 1 is rotatably arranged on the wheel axle 11. The armrest 6 is arranged at the front end of the elbow support component 5 for the user to grasp. The bottom of the elbow support component 5 extends downward to form an extension portion 51. Both ends of the wheel axle 11 are fixedly arranged on the extension portion 51. Removable end covers 13 are arranged at both ends of the wheel body 1. The elbow support component 5 and the armrest 6 are prior arts and are not described in detail herein. An assisting elastic member is arranged between the wheel body 1 and the wheel axle 11, and the assisting elastic member can play an assisting role during exercise.

[0027] The wheel body 1 is a hollow cylindrical structure, the sleeve 4 is fixed on the wheel axle 11 and is located in the wheel body 1, the toggle member is fixedly arranged on the wheel body 1, the toggle member is a toggle rod 3 with a circular cross section, the inner wall of the wheel body 1 is formed with a mounting portion 12 arranged along its length direction, the mounting portion 12 is formed with a mounting groove for accommodating the toggle rod 3, the toggle rod 3 is inserted into the mounting groove and a part of the rod body is reserved for toggling the dial 2, and the toggle rod 3 is arranged parallel to the wheel axle 11, so that The toggle lever 3 can better toggle the dial 2 to rotate. The dial 2 is rotatably set on the sleeve 4 through bolts. The sleeve 4 is formed with a mounting boss 42 with a bolt hole. The dial 2 is formed with a mounting hole 24 matched with the mounting boss 42. The dial 2 is provided with an anti-loosening gasket 23, and the anti-loosening gasket 23 is formed with a bolt hole. The diameter of the anti-loosening gasket 23 is larger than the mounting hole 24. After the dial 2 is sleeved on the mounting boss 42, the anti-loosening gasket 23 is covered on the dial 2 and locked by bolts. The rotation axis of the dial 2 is parallel to the wheel axle 11, so that when the wheel body 1 rotates, the toggle rod 3 will not tilt relative to the dial 2 and cause it to get stuck. The dial 2 is a circular structure, and the outer peripheral surface of the dial 2 includes a toggle section 21 and a stop section 22. A plurality of arc-shaped toggle grooves 211 are formed on the toggle section 21, and a stop section 22 is formed on the stop section 22. The circular structure of the dial 2 is more suitable for rotation. The provision of a plurality of toggle grooves 211 can enable the toggle rod 3 to better cooperate with the groove wall of the toggle groove 211. When the toggle rod 3 rotates with the wheel body 1, it can cooperate with the toggle groove 211 to drive the dial 2 to rotate. When the toggle rod 3 rotates to abut against the stop section 221, the toggle member can no longer rotate. It can rotate in the opposite direction, so when using the anti-backward abdominal wheel to do abdominal exercises, the dial 2 and the toggle piece can cooperate to limit the number of circles that the wheel body 1 rotates forward, so that the user cannot continue to push the anti-backward abdominal wheel after pushing it to a certain distance. After rotating approximately 5 to 7 circles, the toggle rod 3 can abut against the stop part 221. According to the cross-sectional circumference of the wheel body 1 in this embodiment, the toggle rod 3 abuts against the stop part 221 after the wheel body 1 rotates forward approximately 180 cm, and it can only rotate in the opposite direction at this time. When the anti-backward abdominal wheel returns to the initial position, the toggle rod 3 abuts against the stop part 221 again, and the wheel body 1 will be restricted from rotating backward, which can prevent the power-assisting elastic member from being damaged due to reverse rotation.

[0028] The assisting elastic member is a torsion spring 8. The sleeve 4 is formed with a fixing groove 41 for accommodating the torsion spring 8. The torsion spring 8 is arranged in the fixing groove 41. One end of the torsion spring 8 is fixedly connected to the wheel axle 11, and the other end is fixedly connected to the wheel body 1 by a bolt. In this way, when the anti-reverse abdominal fitness wheel is pushed forward, the torsion spring 8 will be elastically deformed under force, thereby providing a certain elastic assisting effect for the abdominal fitness exercise.

[0029] It also includes two steering wheels 71, which are arranged at the bottom of the elbow support component 5 through a steering frame 7, and can play a role in steering the anti-backward abdominal fitness wheel, and the outer peripheral surface of the wheel body 1 is arranged in an arc shape, which can be well steered with the steering wheels 71. Of course, handles can also be used to be arranged on both sides of the wheel body 1, and a single-wheel structure can be used to achieve the purpose of the utility model.

[0030] Example 2, refer to Fig.10 As shown, the second embodiment is substantially the same as the first embodiment, except that the toggle member of the second embodiment is a toggle tooth A3 extending from the wheel body 1, and a tooth-like protrusion A24 cooperating with the toggle tooth A3 is formed on the toggle section A21 of the dial A2, the toggle groove A23 is a non-circular groove, the contact surface between the tooth-like protrusion A24 and the toggle tooth A3 is the groove wall of the toggle groove A23, and the two ends of the stop section A22 are also non-arc-shaped cooperating with the toggle tooth A3, and the toggle tooth A3 can enter the toggle groove A23 and abut against the tooth-like protrusion A24 when the wheel body 1 rotates, which is the same as the principle of the first embodiment, so that the dial A2 can be driven to rotate and can cooperate with the stop portion A25 to limit the rotation of the wheel body 1.

[0031] The above description is only a preferred embodiment of the present utility model, and therefore cannot be used to limit the scope of implementation of the present utility model. That is, equivalent changes and modifications made according to the scope of the patent application of the present utility model and the contents of the specification should still fall within the scope covered by the patent of the present utility model.

Claims

1. An anti-backward abdominal wheel, comprising a wheel body and a wheel axle, wherein the wheel body is rotatably arranged on the wheel axle, and an assisting elastic member is arranged between the wheel body and the wheel axle, characterized in that: The dial is rotatably arranged on the wheel shaft, and the toggle member is fixedly arranged on the wheel body. A toggle groove and a stopper are formed on the dial. When the toggle member rotates with the wheel body, it can cooperate with the toggle groove to drive the dial to rotate. When the toggle member rotates to abut against the stopper, the toggle member cannot continue to rotate and can only rotate in the reverse direction.

2. The anti-backward abdominal wheel according to claim 1, characterized in that: The toggle member is a toggle rod with a circular cross section.

3. The anti-backward abdominal wheel according to claim 2, characterized in that: The toggle lever is arranged parallel to the wheel axle.

4. The anti-backward abdominal wheel according to claim 2, characterized in that: The toggle groove is an arc-shaped groove matched with the toggle rod.

5. The anti-backwarding abdominal wheel according to claim 1, characterized in that: The dial is a circular structure, and the outer peripheral surface of the dial includes a dialing section and a rotation-stopping section, and the dialing section is formed with a plurality of the dialing grooves arranged at intervals.

6. The anti-backwarding abdominal wheel according to any one of claims 1 to 5, characterized in that: It also includes a sleeve, the wheel body is a hollow structure, the sleeve is fixed on the wheel axle and located in the wheel body, the assist elastic member is a torsion spring, the torsion spring is arranged in the sleeve, one end of the torsion spring is fixedly connected to the wheel axle, and the other end is fixedly connected to the wheel body.

7. The anti-backwarding abdominal wheel according to claim 6, characterized in that: The dial is rotatably arranged on the sleeve, and the rotation axis of the dial is parallel to the wheel axle.

8. The anti-backwarding abdominal wheel according to any one of claims 1 to 5, characterized in that: Handles are arranged at both ends of the wheel axle.

9. The anti-backwarding abdominal wheel according to any one of claims 1 to 5, characterized in that: It also includes an elbow support component and an armrest, wherein the armrest is arranged on the elbow support component, and the two ends of the wheel axle are fixedly arranged on the bottom of the elbow support component.

10. The anti-backwarding abdominal wheel according to any one of claims 1 to 5, characterized in that: The wheel body is a hollow structure, and the shifting member is formed on the inner wall of the wheel body.

Images