Abdominal roller capable of being automatically charged

Abstract

The utility model relates to a power roller capable of being automatically charged, which belongs to the field of energy storage and comprises a mounting shaft and two rollers rotatably arranged on the mounting shaft through bearings, round-rod-shaped handles are arranged at two ends of the mounting shaft, the handles and the mounting shaft are coaxially arranged, and the two rollers are arranged in parallel and coaxially arranged with the mounting shaft. A shielding cover is arranged between the two idler wheels, the shielding cover and the two idler wheels define an installation space, a power generation assembly is installed in the installation space and comprises a generator and a rechargeable battery which are fixedly arranged on any idler wheel and electrically connected with each other, and the axis of a rotating shaft of the generator is parallel to the axis of the installation shaft. A rotating shaft of the generator is in transmission connection with the mounting shaft through a transmission device. According to the functional power roller, the rechargeable battery arranged in the power roller can be charged in the conventional use process of the power roller, so that the situation of power failure can be avoided, and the use experience of the functional power roller can be greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of energy storage, in particular to an automatically rechargeable abdominal wheel. Background Art

[0002] The ab wheel is a small pusher that can exercise muscles, joints and reduce weight. It is easy to use and is used to exercise fat on the abdomen, waist, hips, arms and other parts of the body. Since the space required for exercise is simple, it is convenient to carry and use at home or when going out.

[0003] Now, in order to count fitness data and increase the fun and competitiveness of the fitness process, functional abdominal wheels such as counting abdominal wheels have emerged. For example, the patent document with publication number CN211245369U discloses a counting abdominal wheel, which is provided with a counting display for displaying the number of rotations on the outer side of the abdominal wheel body, and a counting sensing element for sensing the number of rotations of the abdominal wheel body is provided inside the counting display, and the counting sensing element is electrically connected to the counting display; a rotating mounting shaft is provided on the inner side of the abdominal wheel body and passes through the abdominal wheel body, and a magnetic induction ring component is provided on the rotating mounting shaft to generate induction with the counting sensing element, thereby realizing the counting function of the abdominal wheel.

[0004] However, since an ab wheel with functions such as counting generally requires a power supply, if it runs out of power, it needs to be charged or the battery needs to be replaced, which will undoubtedly affect the normal use of the functional ab wheel, especially when it is carried out for use. Therefore, the present invention provides an automatically rechargeable ab wheel, which is used to achieve the purpose of charging the ab wheel while using it, thereby avoiding the situation of running out of power and improving the user experience of the functional ab wheel. Utility Model Content

[0005] Based on this, it is necessary to provide an automatically rechargeable abdominal wheel, comprising a mounting shaft and two rollers rotatably arranged on the mounting shaft through bearings, wherein both ends of the mounting shaft are provided with handles in the form of round rods, and the handles are coaxially arranged with the mounting shaft, the two rollers are arranged side by side and coaxially arranged with the mounting shaft, a shielding cover is provided between the two rollers, and the shielding cover and the two rollers form an installation space, a power generation component is installed in the installation space, the power generation component comprises a generator and a rechargeable battery fixedly arranged on any roller and electrically connected to each other, and the axis of the rotating shaft of the generator is arranged parallel to the axis of the mounting shaft, and the rotating shaft of the generator is transmission-connected to the mounting shaft through a transmission device.

[0006] In the utility model, the handle of the abdominal wheel is used for the user to hold, and the conventional fitness use is achieved through the rotation connection structure of the roller and the installation shaft.

[0007] In the present utility model, when the abdominal wheel is in use, the roller rotates relative to the mounting shaft. At this time, the generator mounted on the roller rotates around the mounting shaft. At this time, the transmission device that drives the rotation of the motor shaft by transmitting the connection between the mounting shaft and the motor shaft drives the rotation of the motor shaft, thereby driving the generator to operate and charging the rechargeable battery. Among them, the rechargeable battery can be connected to an electrical device arranged on the roller, such as a counter, through a wire circuit, so as to realize corresponding functions, such as counting functions. That is, in the present utility model, the rechargeable battery built into the abdominal wheel can be charged during the normal use of the abdominal wheel, thereby avoiding the situation of running out of power and greatly improving the use experience of the functional abdominal wheel.

[0008] Furthermore, the transmission device includes a first pulley mounted on the rotating shaft of the generator and a second pulley fixedly arranged on the mounting shaft, and the first pulley and the second pulley are connected to each other through a transmission belt.

[0009] In the present utility model, the first pulley mounted on the rotating shaft of the generator and the second pulley mounted on the mounting shaft are connected by a transmission belt. When the abdominal wheel is in use, the rotating shaft of the generator rotating around the mounting shaft will be driven by the transmission belt to rotate, thereby driving the generator to operate. Among them, preferably, the diameter of the second pulley is 2.5 - 4 times the diameter of the first pulley, so that the rotating shaft of the generator has a relatively high rotational speed during the normal use of the abdominal wheel, thereby ensuring the power generation effect of the generator.

[0010] Furthermore, the mounting shaft includes a rotating cylinder in the shape of a cylinder and a rotating rod in the shape of a round rod. The roller is rotatably arranged on the rotating cylinder through a bearing. The inner side wall of the rotating cylinder is provided with a first internal thread, and the surface of the rotating rod is provided with a first external thread corresponding to the first internal thread and matching with the first internal thread, and is connected to the rotating cylinder through the first external thread. Both ends of the rotating rod extend out of the rotating cylinder to form handles.

[0011] In the present utility model, the rotating rod is mounted in the rotating cylinder through the first external thread on its surface to form a mounting shaft in combination, and the handles of the abdominal wheel are formed by the extension of both ends of the rotating rod. Therefore, when the abdominal wheel of the present utility model is carried and used outdoors, the rotating rod can be taken out of the rotating cylinder, thereby reducing the space occupation rate of the abdominal wheel and improving its portability.

[0012] Furthermore, the diameter of the handle is smaller than the diameter of the rotating rod; a retaining ring is fixedly arranged at the left end of the rotating cylinder, and the inner diameter of the retaining ring is smaller than the inner diameter of the rotating cylinder and larger than the diameter of the handle, and the retaining ring is coaxially arranged with the rotating cylinder.

[0013] In the present utility model, a retaining ring disposed at the left end of the rotating cylinder is used to block the rotating rod. That is, when the rotating rod is installed, it needs to be inserted into the rotating cylinder from the right end of the rotating cylinder. At this time, the presence of the retaining ring can play a positioning role during the installation process of the rotating rod, facilitating the rotation of the rotating rod to a preset position. At the same time, after the rotating rod rotates to the preset position, by pressing the rotating rod against the retaining ring, the locking force of the threaded connection structure between the rotating rod and the rotating cylinder can be enhanced, making its connection structure more firm and stable, and avoiding relative displacement between the rotating rod and the rotating cylinder during the use of the ab wheel.

[0014] Further, a second external thread is provided on the right end surface of the handle located on the left side of the rotating cylinder to form a fastening portion, and the helix direction of the second external thread is opposite to that of the first external thread; a fastening ring is further provided on the fastening portion, and a second internal thread corresponding to the second external thread is provided on the inner side wall of the fastening ring, and it is installed on the fastening portion through the second internal thread, and the fastening ring abuts against the retaining ring.

[0015] In the present utility model, the fastening portion extends leftward beyond the retaining ring. By locking the fastening ring on the fastening portion, the rotating cylinder and the rotating rod can be further fixed, thereby further ensuring that its connection structure is more firm and stable, and avoiding relative displacement between the rotating rod and the rotating cylinder during the use of the ab wheel. At the same time, since the helix directions of the second external thread and the first external thread are opposite, during the use of the ab wheel, the interaction between the locking structure between the fastening ring and the fastening portion and the locking structure between the rotating rod and the rotating cylinder can prevent the threaded connection structures between the fastening ring and the fastening portion, and between the rotating rod and the rotating cylinder from loosening.

[0016] Further, a braking device is further provided on the handle located on the right side of the rotating cylinder.

[0017] In the present utility model, the braking device is used to prevent relative rotation between the roller and the mounting shaft, and is used to stop the rolling of the ab wheel in time when the user loses strength, avoiding the occurrence of safety accidents.

[0018] Further, the braking device includes an installation channel opened in the handle. The left end and the right end of the installation channel extend upward and downward beyond the handle respectively. A connecting rod is further provided in the installation channel. The left end of the connecting rod is pivotally connected to the left end of the installation channel. A pressing block is fixedly provided at the right end of the connecting rod. The lower end of the pressing block is flush with the lower end of the handle. A pressing rod is fixedly provided at the left end of the connecting rod. The pressing rod extends upward beyond the installation channel. An abutting block is fixedly provided at the top end of the pressing rod. The side surface of the abutting block facing the roller is parallel to the side surface of the roller to form an abutting surface, and there is a gap a between the abutting surface and the roller.

[0019] In the present utility model, the pressing block is used to trigger the braking device. The triggering method is to press the triggering block upward. At this time, the upward-moving pressing block will drive the right end of the connecting rod to swing upward, thereby driving the pressing rod to swing towards the roller, so that the abutting block abuts on the roller. At this time, the frictional force between the abutting block and the roller can limit the relative rotation of the roller and the mounting shaft, achieving the effect of braking.

[0020] Further, a pressing spring is fixedly arranged at the right end of the installation channel. The pressing spring is arranged vertically, and the two ends of the pressing spring are respectively connected to the inner side wall of the installation channel and the top end of the pressing block.

[0021] In the present utility model, the pressing spring is used to connect the side wall of the installation channel and the pressing block to fix the position of the pressing block. At this time, correspondingly, the position of the abutting block can be fixed, and the gap between the abutting surface and the roller can be maintained, thereby avoiding the influence of the existence of the abutting block on the normal use of the abdominal wheel. When the braking device needs to be used, pressing the pressing block can compress the pressing spring to realize the abutting of the abutting block and the roller.

[0022] Further, the cross-section of the abutting surface in the transverse direction is serrated, forming a limiting protrusion. The side surface of the roller is provided with an abutting area for the abutting block to abut corresponding to the abutting surface of the abutting block. The abutting area is annular and coaxially arranged with the roller, and a limiting groove for engaging with the limiting protrusion is formed on the abutting area.

[0023] In the present utility model, a limiting groove matching the limiting protrusion on the abutting block is formed in the abutting area. During the process of the abutting block abutting on the roller, the limiting protrusion on the abutting block can be caught in the limiting groove, thereby blocking the rotation of the roller relative to the mounting shaft. Compared with braking relying on friction, the braking effect is better.

[0024] The principle and effect of the present utility model will be further described below in combination with the above technical solutions and the drawings:

[0025] In the present utility model, when the abdominal wheel is in use, the roller will rotate relative to the mounting shaft. At this time, the generator mounted on the roller will rotate around the mounting shaft. At this time, the transmission device connecting the mounting shaft and the rotating shaft of the motor will drive the rotating shaft of the motor to rotate, thereby driving the generator to operate and charging the rechargeable battery. Among them, the rechargeable battery can be connected to the electrical equipment arranged on the roller, such as a counter, through a wire circuit, so as to realize corresponding functions, such as a counting function. That is, in the present utility model, the rechargeable battery built in the abdominal wheel can be charged during the normal use of the abdominal wheel, thereby avoiding the situation of running out of power and greatly improving the use experience of the functional abdominal wheel. Description of the Drawings

[0026] Figure 1 This is a schematic diagram of the cross-sectional structure of the automatically rechargeable abdominal wheel according to the embodiment of the utility model. Figure One ;

[0027] Figure 2 This is a schematic diagram of the cross-sectional structure of the automatically rechargeable abdominal wheel according to the embodiment of the utility model. Figure Two ;

[0028] Figure 3 This is a side structural diagram of a roller according to an embodiment of the present utility model;

[0029] Figure 4 It is a schematic diagram of the matching structure between the abutment block and the roller according to an embodiment of the present utility model.

[0030] Reference numerals

[0031] 11-rotating drum, 111-retaining ring, 12-rotating rod, 121-handle, 1211-fastening part, 1212-installation channel, 2-fastening ring, 3-roller, 31-abutment area, 311-limiting groove, 4-bearing, 5-shielding cover, 61-generator, 62-rechargeable battery, 63-first pulley, 64-second pulley, 65-transmission belt, 71-connecting rod, 72-pressure rod, 73-pressing block, 74-abutment block, 741-limiting protrusion, 75-pressing spring. DETAILED DESCRIPTION

[0032] To facilitate understanding by those skilled in the art, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments:

[0033] like Figures 1-4 , an automatically rechargeable abdominal wheel, comprising a mounting shaft and two rollers 3 rotatably arranged on the mounting shaft through bearings 4, wherein two ends of the mounting shaft are provided with handles 121 in the form of round rods, and the handles 121 are coaxially arranged with the mounting shaft, the two rollers 3 are arranged side by side and the two rollers 3 are coaxially arranged with the mounting shaft, a shielding cover 5 is provided between the two rollers 3, and the shielding cover 5 and the two rollers 3 enclose an installation space, a power generation component is installed in the installation space, the power generation component comprises a generator 61 and a rechargeable battery 62 fixedly arranged on any roller 3 and electrically connected to each other, and the axis of the rotating shaft of the generator 61 is arranged parallel to the axis of the mounting shaft, and the rotating shaft of the generator 61 is transmission-connected to the mounting shaft through a transmission device.

[0034] In the present invention, the handle 121 of the abdominal wheel is used for the user to hold, and the conventional fitness use is achieved through the rotation connection structure between the roller 3 and the mounting shaft.

[0035] In the present utility model, when the abdominal wheel is in use, the roller 3 rotates relative to the mounting shaft. At this time, the generator 61 mounted on the roller 3 rotates around the mounting shaft. At this time, the transmission device that drives the rotation of the motor shaft and the mounting shaft drives the rotation of the motor shaft, thereby driving the operation of the generator 61 to charge the rechargeable battery 62. Among them, the rechargeable battery 62 can be connected to an electrical device provided on the roller 3, such as a counter, through a wire circuit, so as to realize corresponding functions, such as counting functions. That is, in the present utility model, the rechargeable battery 62 built into the abdominal wheel can be charged during the normal use of the abdominal wheel, thereby avoiding the situation of running out of power and greatly improving the use experience of the functional abdominal wheel.

[0036] In one embodiment, the transmission device includes a first pulley 63 mounted on the rotating shaft of the generator 61 and a second pulley 64 fixedly provided on the mounting shaft. The first pulley 63 and the second pulley 64 are drivingly connected to each other through a transmission belt 65.

[0037] In this embodiment, the first pulley 63 mounted on the rotating shaft of the generator 61 and the second pulley 64 mounted on the mounting shaft are connected by a transmission belt 65. When the abdominal wheel is in use, the rotating shaft of the generator 61 that rotates around the mounting shaft will be driven by the transmission belt 65 to rotate, thereby driving the operation of the generator 61. Among them, preferably, the diameter of the second pulley 64 is 2.5-4 times the diameter of the first pulley 63, so that the rotating shaft of the generator 61 has a higher rotational speed during the normal use of the abdominal wheel, thereby ensuring the power generation effect of the generator 61.

[0038] In one embodiment, the mounting shaft includes a cylindrical rotating cylinder 11 and a round rod-shaped rotating rod 12. The roller 3 is rotatably provided on the rotating cylinder 11 through a bearing 4. The inner side wall of the rotating cylinder 11 is provided with a first internal thread, and the surface of the rotating rod 12 is provided with a first external thread matching the first internal thread corresponding to the first internal thread, and is connected to the rotating cylinder 11 through the first external thread. Both ends of the rotating rod 12 extend out of the rotating cylinder 11 to form a handle 121.

[0039] In this embodiment, the rotating rod 12 is installed in the rotating cylinder 11 through the first external thread on its surface to form a mounting shaft in combination. Moreover, the handle 121 of the abdominal wheel is formed by the two ends of the rotating rod 12 extending outwards. Therefore, when the abdominal wheel of the present utility model is carried and used outdoors, the rotating rod 12 can be taken out of the rotating cylinder 11, so as to reduce the space occupation rate of the abdominal wheel and improve its portability.

[0040] In one embodiment, the diameter of the handle 121 is smaller than the diameter of the rotating rod 12; a retaining ring 111 is fixedly arranged at the left end of the rotating cylinder 11, the inner diameter of the retaining ring 111 is smaller than the inner diameter of the rotating cylinder 11 and larger than the diameter of the handle 121, and the retaining ring 111 is coaxially arranged with the rotating cylinder 11.

[0041] In this embodiment, the retaining ring 111 arranged at the left end of the rotating cylinder 11 is used to block the rotating rod 12. That is, when the rotating rod 12 is installed, it needs to be inserted into the rotating cylinder 11 from the right end of the rotating cylinder 11. At this time, the presence of the retaining ring 111 can play a positioning role during the installation process of the rotating rod 12, which can facilitate the rotating rod 12 to be rotated to a preset position. At the same time, after the rotating rod 12 is rotated to the preset position, by pressing the rotating rod 12 against the retaining ring 111, the locking force of the threaded connection structure between the rotating rod 12 and the rotating cylinder 11 can also be enhanced, making its connection structure more firm and stable, and avoiding the relative displacement of the rotating rod 12 and the rotating cylinder 11 during the use of the ab wheel.

[0042] In one embodiment, a second external thread is provided on the right end surface of the handle 121 located on the left side of the rotating cylinder 11 to form a fastening portion 1211, and the helix direction of the second external thread is opposite to the helix direction of the first external thread; a fastening ring 2 is further arranged on the fastening portion 1211, a second internal thread is provided on the inner side wall of the fastening ring 2 corresponding to the second external thread, and it is installed on the fastening portion 1211 through the second internal thread, and the fastening ring 2 abuts against the retaining ring 111.

[0043] In this embodiment, the fastening portion 1211 extends leftward out of the retaining ring 111. By locking the fastening ring 2 on the fastening portion 1211, the rotating cylinder 11 and the rotating rod 12 can be further fixed, thereby further ensuring that its connection structure is more firm and stable, and avoiding the relative displacement of the rotating rod 12 and the rotating cylinder 11 during the use of the ab wheel. At the same time, since the helix directions of the second external thread and the first external thread are opposite, during the use of the ab wheel, the interaction between the locking structure between the fastening ring 2 and the fastening portion 1211 and the locking structure between the rotating rod 12 and the rotating cylinder 11 can prevent the threaded connection structures between the fastening ring 2 and the fastening portion 1211, and between the rotating rod 12 and the rotating cylinder 11 from loosening.

[0044] In one embodiment, a braking device is further arranged on the handle 121 located on the right side of the rotating cylinder 11.

[0045] In this embodiment, the braking device is used to prevent the relative rotation between the roller 3 and the mounting shaft, and is used to stop the rolling of the ab wheel in time when the user loses strength, so as to avoid the occurrence of safety accidents.

[0046] In one embodiment, the braking device includes an installation channel 1212 formed in the handle 121. The left and right ends of the installation channel 1212 extend upward and downward from the handle 121 respectively. A connecting rod 71 is further disposed in the installation channel 1212. The left end of the connecting rod 71 is pivotally connected to the left end of the installation channel 1212. A pressing block 73 is fixedly provided at the right end of the connecting rod 71. The lower end of the pressing block 73 is flush with the lower end of the handle 121. A pressing rod 72 is fixedly provided at the left end of the connecting rod 71. The pressing rod 72 extends upward from the installation channel 1212. An abutting block 74 is fixedly provided at the top end of the pressing rod 72. The side surface of the abutting block 74 facing the roller 3 is parallel to the side surface of the roller 3, forming an abutting surface. There is a gap a between the abutting surface and the roller 3.

[0047] In this embodiment, the pressing block 73 is used to trigger the braking device. The triggering method is to press the trigger block upward. At this time, the upward-moving pressing block 73 will drive the right end of the connecting rod 71 to swing upward, thereby driving the pressing rod 72 to swing toward the roller 3, so that the abutting block 74 abuts on the roller 3. At this time, the frictional force between the abutting block 74 and the roller 3 can limit the relative rotation of the roller 3 and the installation shaft, achieving the braking effect.

[0048] In one embodiment, a pressing spring 75 is further fixedly provided at the right end of the installation channel 1212. The pressing spring 75 is vertically arranged. The two ends of the pressing spring 75 are respectively connected to the inner side wall of the installation channel 1212 and the top end of the pressing block 73.

[0049] In this embodiment, the pressing spring 75 is used to connect the side wall of the installation channel 1212 and the pressing block 73 to fix the position of the pressing block 73. At this time, correspondingly, the position of the abutting block 74 can be fixed, and the gap between the abutting surface and the roller 3 can be maintained, so as to avoid the influence of the existence of the abutting block 74 on the normal use of the abdominal wheel. When the braking device needs to be used, pressing the pressing block 73 can compress the pressing spring 75 to realize the abutment of the abutting block 74 and the roller 3.

[0050] In one embodiment, the cross-section of the abutting surface in the horizontal direction is serrated, forming a limiting protrusion 741. The side surface of the roller 3 is provided with an abutting area 31 for the abutment of the abutting block 74 corresponding to the abutting surface of the abutting block 74. The abutting area 31 is annular and coaxially arranged with the roller 3, and a limiting groove 311 for engaging with the limiting protrusion 741 is formed on the abutting area 31.

[0051] In this embodiment, a limiting groove 311 matching the limiting protrusion 741 on the abutting block 74 is formed in the abutting area 31. During the process of the abutting block 74 abutting against the roller 3, the limiting protrusion 741 on the abutting block 74 can be engaged into the limiting groove 311, so as to block the rotation of the roller 3 relative to the mounting shaft. Compared with braking relying on friction, the braking effect is better.

[0052] The above embodiments only represent several implementation manners of the present utility model, and the description thereof is relatively specific and detailed. However, it should not be construed as a limitation to the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent shall be subject to the appended claims.

Claims

1. An abdominal wheel capable of automatic charging, comprising a mounting shaft and two rollers rotatably disposed on the mounting shaft through bearings. Both ends of the mounting shaft are provided with handlebars in the shape of round rods. The handlebars are coaxially arranged with the mounting shaft. The two rollers are arranged side by side and coaxially arranged with the mounting shaft. It is characterized in that, A shielding cover is provided between the two rollers, and the shielding cover and the two rollers enclose an installation space. A power generation component is installed in the installation space. The power generation component includes a generator and a rechargeable battery fixedly provided on any roller and electrically connected to each other, and the axis of the rotating shaft of the generator is provided parallel to the axis of the installation shaft, and the rotating shaft of the generator is connected to the installation shaft through a transmission device.

2. The ab wheel capable of automatic charging according to claim 1, characterized in that, The transmission device includes a first pulley mounted on the rotating shaft of the generator, and a second pulley fixedly arranged on the mounting shaft, and the first pulley and the second pulley are connected to each other through a transmission belt.

3. The abdominal wheel capable of automatic charging according to claim 1 or 2, characterized in that The mounting shaft includes a cylindrical rotating drum and a round rod-shaped rotating rod. The roller is rotatably arranged on the rotating drum through a bearing. The inner side wall of the rotating drum is provided with a first internal thread. The surface of the rotating rod is provided with a first external thread corresponding to the first internal thread and matching the first internal thread. The rotating rod is connected to the rotating drum through the first external thread. Both ends of the rotating rod extend outward from the rotating drum to form a handle.

4. The ab wheel capable of automatic charging according to claim 3, characterized in that, The diameter of the handle is smaller than the diameter of the rotating rod; a retaining ring is fixedly provided on the left end of the rotating drum, the inner diameter of the retaining ring is smaller than the inner diameter of the rotating drum and larger than the diameter of the handle, and the retaining ring is coaxially arranged with the rotating drum.

5. The ab wheel capable of automatic charging according to claim 4, characterized in that, A second external thread is provided on the right end surface of the handle located on the left side of the rotating drum to form a fastening portion, and the rotation direction of the second external thread is opposite to that of the first external thread; a fastening ring is also provided on the fastening portion, and the inner side wall of the fastening ring is provided with a second internal thread corresponding to the second external thread, and is installed on the fastening portion through the second internal thread, and the fastening ring abuts against the retaining ring.

6. The ab wheel capable of automatic charging according to claim 5, characterized in that, A brake device is also provided on the handle located on the right side of the rotating drum.

7. The ab wheel capable of automatic charging according to claim 6, wherein The brake device includes a mounting channel opened in the handle, and the left and right ends of the mounting channel extend upward and downward from the handle setting respectively. A connecting rod is also provided in the mounting channel, and the left end of the connecting rod is pivotally connected to the left end of the mounting channel, and a pressing block is fixedly provided at the right end of the connecting rod, and the lower end of the pressing block is flush with the lower end of the handle. A pressure rod is fixedly provided at the left end of the connecting rod, and the pressure rod extends upward from the mounting channel setting. An abutment block is fixedly provided at the top end of the pressure rod, and the side surface of the abutment block facing one side of the roller is parallel to the side surface of the roller to form an abutment surface, and there is a gap a between the abutment surface and the roller.

8. The ab wheel capable of automatic charging according to claim 7, wherein A pressing spring is also fixedly provided at the right end of the installation channel. The pressing spring is vertically arranged, and the two ends of the pressing spring are respectively connected to the inner side wall of the installation channel and the top end of the pressing block.

9. The ab wheel capable of automatic charging according to claim 7, characterized in that, The cross-section of the abutment surface in the transverse direction is serrated to form a limiting protrusion. The side of the roller is provided with an abutment area for abutting the abutment block corresponding to the abutment surface of the abutment block. The abutment area is annular and is arranged coaxially with the roller, and a limiting groove is formed on the abutment area for engaging with the limiting protrusion.

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