Fitness trainer

Abstract

The utility model relates to the field of fitness equipment, in particular to a fitness trainer, which comprises a central shaft, a counterweight component and a sleeving component, the sleeving component is rotatably sleeved on the outer side of the central shaft, and the counterweight component is fixedly connected with the sleeving component. The center shaft is rotationally sleeved with the sleeving part, the counterweight assembly is fixedly connected with the sleeving part, the center shaft is held by a hand to swing in one direction, the strength of arms and wrists can be exercised, and the fitness trainer is simple in structure, easy to operate and capable of adapting to different training crowds.

Description

Technical Field

[0001] The utility model relates to the field of fitness equipment, in particular to a fitness training device. Background Art

[0002] The pace of modern life is fast. As people pay more and more attention to their health, more and more fitness equipment has emerged, including those for training arm strength, leg strength, wrist strength, and all kinds of training equipment for training various parts of the body. At present, the structure of fitness equipment for training arm strength and wrist strength is relatively complex. Most of them are adjusted by the number or weight of counterweight blocks to adapt to different groups of people or meet the different training needs of trainees. The operation is cumbersome and time-consuming. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a simple and easy-to-operate fitness trainer.

[0004] The utility model solves the above technical problems with the following technical solutions: a fitness trainer, comprising a central axis, a weight assembly and a sleeve component, wherein the sleeve component is rotatably sleeved on the outside of the central axis, and the weight assembly is fixedly connected to the sleeve component.

[0005] The beneficial effects of the utility model are as follows: the sleeve component is rotatably sleeved on the outside of the central axis, and the counterweight assembly is fixedly connected to the sleeve component. The central axis is held by hand to rotate in one direction around an axis parallel to the central axis, and the centrifugal force of the counterweight assembly can be used to train the strength of the arms and wrists. The fitness trainer has a simple structure and is easy to operate, and can adapt to different training groups.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the fitness trainer also includes an inertia wheel, which is sleeved on one end of the sleeve component and fixedly connected to the sleeve component.

[0008] The beneficial effect of adopting the above further scheme is that by arranging an inertia wheel on the sleeve component, when the trainee holds the central axis and swings it, the inertia wheel can drive the sleeve component and the counterweight assembly to rotate at the same time, and it is not easy to stop during the rotation process, so that the trainee will not be too strenuous during the operation, and relying on the inertial rotation of the inertia wheel, the trainee can be better coordinated and more rhythmic during the training operation.

[0009] Furthermore, the fitness trainer also includes a shell, the central axis passes through the shell and is fixedly connected to the shell, and the weight assembly, the sleeve component and the inertia wheel are all arranged in the shell.

[0010] The beneficial effect of adopting the above further solution is that by providing a shell, the weight assembly, the sleeve component and the inertia wheel are all arranged in the shell, which plays a role in protecting the devices in the shell and also makes the trainee safer during training.

[0011] Furthermore, a resistance device is also provided in the shell, the resistance device is connected to the shell, and one side of the resistance device is spaced apart from or abuts against the outer peripheral surface of the inertia wheel.

[0012] The beneficial effect of adopting the above further solution is that by setting the resistance device, the resistance to the inertia wheel can be increased or decreased. When the resistance to the inertia wheel is greater, the trainee needs to use greater force to rotate the weight assembly. The setting of the resistance device can adjust the resistance of the weight assembly to adapt to different groups of people or meet different training needs of trainees.

[0013] Further, the resistance device includes a resistance adjustment rotating plate, a resistance adjustment segment disk and a resistance component, the resistance adjustment segment disk is rotatably connected to the shell, two limit blocks are arranged on the resistance adjustment segment disk at intervals, a conductive sleeve is arranged on the outer fixed sleeve of the inertia wheel, the resistance adjustment rotating plate is arranged on the outer side of the inertia wheel, the resistance component is a magnetic block, one end of the resistance adjustment rotating plate is fixedly connected to the magnetic block and is located between the two limit blocks, and the other end of the resistance adjustment rotating plate is hinged to the shell.

[0014] The beneficial effect of adopting the above further scheme is that by rotating the adjustment segment disk, the limit block and the resistance adjustment rotating plate move relatively, so that one end of the resistance adjustment rotating plate fixed with the magnetic block is close to or away from the inertia wheel. The fixed sleeve outside the inertia wheel is provided with a conductive sleeve. When the magnetic block is close to the inertia wheel, the smaller the magnetic gap between the magnetic block and the inertia wheel, the more magnetic lines of force are cut during the rotation of the inertia wheel, and the greater the resistance; when the magnetic block is away from the inertia wheel, the larger the magnetic gap between the magnetic block and the inertia wheel, the fewer magnetic lines of force are cut during the rotation of the inertia wheel, and the smaller the resistance.

[0015] Furthermore, the resistance adjustment segment disk is in the shape of a circular ring, and an arc groove is opened on the resistance adjustment segment disk along its circumference, two limit blocks are arranged at one end of the arc groove, and the two limit blocks are arranged at intervals along the radial direction of the resistance adjustment segment disk, and the other end of the resistance adjustment rotating plate is located in the arc groove.

[0016] The beneficial effect of adopting the above-mentioned further scheme is that by setting one end of the resistance adjustment rotating plate between the two limit blocks, and the other end of the resistance adjustment rotating plate is located in the arc groove on the resistance adjustment segment disk, when the resistance adjustment segment disk is rotated, the limit block also rotates, thereby driving one end of the resistance adjustment rotating plate stuck between the two limit blocks to approach or move away from the inertia wheel.

[0017] Furthermore, the resistance adjustment rotating plate includes a connecting section and an arc section, the connecting section is hinged to the shell, one end of the arc section is fixedly connected to the connecting section, the other end of the arc section is located between the two limit blocks, and the magnetic block is fixedly connected to the other end of the arc section.

[0018] The beneficial effect of adopting the above further scheme is that the connecting section and the shell are rotatably connected, and one end of the arc section is fixedly connected to the connecting section, so that when the resistance adjustment segment disk is rotated, the arc section is kept moving relatively between the two limit blocks, thereby approaching or moving away from the inertia wheel.

[0019] Furthermore, the resistance device also includes a limit spring sheet and a limit stop column, one end of the limit spring sheet is fixed on the shell, and the limit stop column is fixed to the other end of the limit spring sheet, and the resistance adjustment segment disk has a plurality of limit grooves arranged in sequence along the circumferential direction, and the limit stop column is clamped in one of the limit grooves.

[0020] The beneficial effect of adopting the above-mentioned further scheme is that one end of the limit spring sheet is fixed to the shell, and a limit stop column is set at the other end. The resistance adjustment segment disk is provided with a limit groove for engaging the limit stop column. When the resistance adjustment segment disk is rotated to a certain position, the limit stop column is engaged in the limit groove, thereby fixing the resistance adjustment segment disk, so that the distance between the magnetic block at one end of the resistance adjustment rotating plate and the inertia wheel remains unchanged, that is, the magnetic gap between the magnetic block and the inertia wheel remains unchanged, the cut magnetic lines remain unchanged, and the resistance remains unchanged.

[0021] Furthermore, it also includes an electronic display and a magnet, wherein the electronic display is arranged on the outside of the shell, a sensor is arranged inside the electronic display, and one end of the counterweight assembly close to the inner wall of the shell is fixedly connected to the magnet.

[0022] The beneficial effect of adopting the above further solution is that during the rotation of the counterweight assembly, the sensor monitors the rotation speed and number of rotations of the counterweight assembly through the magnet fixed on the counterweight assembly, and records and displays the relevant motion data through the electronic display.

[0023] Furthermore, a power supply device is provided inside the shell, and the power supply device includes a generator and a gear. The gear is sleeved on the other end of the sleeve component, the gear is fixedly connected to the sleeve component, the generator is fixed to the inner wall of the shell, the gear is transmission-connected to the output shaft of the generator, and the generator is electrically connected to the electronic display.

[0024] The beneficial effect of adopting the above further scheme is that by setting up gears and generators, during the swinging of the fitness trainer, the counterweight assembly drives the gears installed on the sleeve component to rotate, and the gears and the output shaft of the generator are connected in a transmission manner, thereby driving the generator to work and generate electricity; at the same time, the setting of the power supply device can supply power to electronic displays or other electrical devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural schematic diagram of the fitness training device of the utility model;

[0026] Figure 2 This is a schematic diagram of the internal structure of the fitness training device of the utility model;

[0027] Figure 3 This is a schematic diagram of the state where the resistance of the fitness training device of the utility model is the largest;

[0028] Figure 4 This is a schematic diagram of the state where the resistance of the fitness training device of the utility model is the minimum;

[0029] Figure 5 It is an overall schematic diagram of the fitness training device of the utility model;

[0030] Figure 6 This is a schematic diagram of the resistance generation principle of the fitness training device of the utility model.

[0031] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0032] 1. Shell; 2. Central axis; 3. Counterweight assembly; 4. Socket component; 5. Inertia wheel; 6. Resistance adjustment rotating plate; 7. Resistance adjustment segment plate; 8. Magnetic block; 9. Limit block; 10. Limit spring sheet; 11. Limit stop column; 12. Electronic display; 13. Generator; 14. Gear; 15. Magnet; 16. Adjustment handle; 17. Rotating shaft; 18. Handle; 19. Conductive sleeve. DETAILED DESCRIPTION

[0033] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0034] like Figure 1-Figure 5 As shown, this embodiment provides a fitness training device, including a central shaft 2, a weight assembly 3 and a sleeve component 4, wherein the sleeve component 4 is rotatably sleeved on the outside of the central shaft 2, and the weight assembly 3 is fixedly connected to the sleeve component 4.

[0035] The sleeve component 4 is rotatably sleeved on the outside of the central axis 2, and the counterweight assembly 3 is fixedly connected to the sleeve component 4. The central axis 2 is held by hand to rotate in one direction around an axis parallel to the axis of the central axis 2. The centrifugal force of the counterweight assembly 3 can achieve the effect of exercising the strength of the arms and wrists. The fitness trainer has a simple structure and is easy to operate, and can be adapted to different training groups.

[0036] Optionally, a handle 18 is provided at one end or both ends of the central shaft 2 , and the sleeve component 4 is installed at one end or the middle of the central shaft 2 .

[0037] Specifically, the handle 18 is provided with an anti-slip cover or the grip is an anti-slip component.

[0038] Specifically, the handle 18 is provided with heat dissipation holes.

[0039] Specifically, the sleeve component 4 is rotatably sleeved on the outer side of the central shaft 2 through a bearing.

[0040] On the basis of the above technical solution, the fitness trainer further comprises an inertia wheel 5 , which is sleeved on one end of the sleeve component 4 and fixedly connected to the sleeve component 4 .

[0041] By sleeved the inertia wheel 5 on the sleeve component 4, when the trainee holds the central shaft 2 and swings it, the inertia wheel 5 can drive the sleeve component 4 and the counterweight assembly 3 to rotate at the same time, and it is not easy to stop during the rotation, so the trainee will not be too strenuous during the operation. In addition, relying on the inertial rotation of the inertia wheel 5, the trainee can better coordinate during the training operation, so as to have a better rhythm.

[0042] On the basis of the above technical solution, the fitness trainer further comprises a shell 1, the central axis 2 passes through the shell 1 and is fixedly connected to the shell 1, and the weight assembly 3, the sleeve component 4 and the inertia wheel 5 are all arranged in the shell 1.

[0043] By providing the housing 1, the weight assembly 3, the sleeve component 4 and the inertia wheel 5 are all arranged in the housing 1, which plays a role in protecting the internal devices of the housing 1 and also makes the trainee safer during training.

[0044] On the basis of the above technical solution, a resistance device is further provided in the housing 1 , the resistance device is connected to the housing 1 , and one side of the resistance device is spaced apart from or abuts against the outer circumference of the inertia wheel 5 .

[0045] By setting the resistance device, the resistance to the inertia wheel 5 can be increased or decreased. When the resistance to the inertia wheel 5 is greater, the trainee needs to use greater force to rotate the weight assembly 3. The setting of the resistance device can adjust the resistance of the weight assembly 3 to adapt to different groups of people or meet different training needs of trainees.

[0046] On the basis of the above technical solution, the resistance device includes a resistance adjustment rotating plate 6, a resistance adjustment segment disk 7 and a resistance component. The resistance adjustment rotating plate 6 is arranged on the outside of the inertia wheel 5, and the resistance adjustment segment disk 7 is rotatably connected to the shell 1. Two limit blocks 9 are arranged on the resistance adjustment segment disk 7 at intervals. A conductive sleeve 19 is fixedly sleeved on the outside of the inertia wheel 5. The resistance component is a magnetic block 8. One end of the resistance adjustment rotating plate 6 is fixedly connected to the magnetic block 8 and is located between the two limit blocks 9. The other end of the resistance adjustment rotating plate 6 is hinged to the shell 1.

[0047] Optionally, the conductive sleeve 19 is an aluminum sleeve, a copper sleeve, or a sleeve made of other conductive materials.

[0048] By rotating the resistance adjustment segment disk 7, the limit block 9 and the resistance adjustment rotating plate 6 move relative to each other, so that one end of the resistance adjustment rotating plate 6 fixed with the magnetic block 8 is close to or away from the inertia wheel 5. A conductive sleeve 19 is provided on the outer fixed sleeve of the inertia wheel 5. When the magnetic block 8 is close to the inertia wheel 5, the smaller the magnetic gap between the magnetic block 8 and the inertia wheel 5, the more magnetic lines of force are cut during the rotation of the inertia wheel 5, and the greater the resistance; when the magnetic block 8 is far away from the inertia wheel 5, the larger the magnetic gap between the magnetic block 8 and the inertia wheel 5, the fewer magnetic lines of force are cut during the rotation of the inertia wheel 5, and the smaller the resistance.

[0049] Specifically, the magnetic block 8 can be a permanent magnet or a common magnet.

[0050] Alternatively, the resistance device can also adjust the resistance of the counterweight assembly 3 by increasing or decreasing the friction between the counterweight assembly 3 and the inertia wheel 5 .

[0051] Specifically, the resistance component is a soft brush, or a sponge, or other components.

[0052] In a specific example, the resistance component is a soft brush, and the resistance adjustment disk 7 is rotated to make the soft brush approach or move away from the inertia wheel 5, thereby adjusting the friction between the soft brush and the inertia wheel 5. When the distance between the soft brush and the inertia wheel 5 is closer, the more contact between the two, the greater the friction, and the greater the resistance of the counterweight assembly 3; conversely, the resistance of the counterweight assembly 3 is smaller. When the soft brush and the inertia wheel 5 are far away and not in contact, it is a training mode without adding resistance in a general state.

[0053] On the basis of the above technical solution, the resistance adjustment segment disk 7 is in a circular ring shape, and an arc groove is opened on the resistance adjustment segment disk 7 along its circumference, and two limit blocks 9 are arranged at one end of the arc groove. The two limit blocks 9 are radially spaced along the resistance adjustment segment disk 7, and the other end of the resistance adjustment rotating plate 6 is located in the arc groove.

[0054] Specifically, an adjustment handle 16 is provided on one side of the resistance adjustment stage disk 7 close to the inner wall of the shell 1 , and a strip-shaped hole slot is provided on the shell 1 , and the adjustment handle 16 passes through the hole slot and extends to the outside of the shell 1 .

[0055] Specifically, the length of the hole groove is not less than the length of the arc groove on the resistance adjustment segment disk 7.

[0056] Specifically, there are one or more arc-shaped grooves, and correspondingly, there are one or more resistance devices.

[0057] In a specific example, Figure 1-Figure 4 As shown, there are two arc grooves, two resistance adjustment rotating pieces 6, and they are arranged in one-to-one correspondence with the two arc grooves. One end of the resistance adjustment rotating piece 6 is arranged between the two limit blocks 9, and the other end of the resistance adjustment rotating piece 6 is located in the corresponding arc groove on the resistance adjustment segment disk 7. When the resistance adjustment segment disk 7 is rotated clockwise, the two limit blocks 9 fixed at one end of the arc groove will rotate clockwise, so that one end of the resistance adjustment rotating piece 6 fixed with the magnetic block 8 gradually approaches the inertia wheel 5, and the smaller the magnetic gap between the magnetic block 8 and the inertia wheel 5, the more magnetic lines of force are cut, and the greater the resistance. When the resistance adjustment segment disk 7 is rotated counterclockwise, the two limit blocks 9 fixed at one end of the arc groove will rotate counterclockwise, so that one end of the resistance adjustment rotating piece 6 fixed with the magnetic block 8 gradually moves away from the inertia wheel 5, and the larger the magnetic gap between the magnetic block 8 and the inertia wheel 5, the fewer magnetic lines of force are cut, and the smaller the resistance. Figure 3 The magnetic gap between the magnetic block 8 and the inertia wheel 5 is the smallest, that is, the resistance is the largest; Figure 4 This is the state where the magnetic gap between the magnetic block 8 and the inertia wheel 5 is the largest, that is, the resistance is the smallest.

[0058] On the basis of the above technical solution, the resistance adjustment rotating plate 6 includes a connecting section and an arc section, the connecting section and the shell 1 are hinged, one end of the arc section is fixedly connected to the connecting section, the other end of the arc section is located between the two limit blocks 9, and the magnetic block 8 is fixedly connected to the other end of the arc section.

[0059] The connecting section and the shell 1 are rotatably connected, and one end of the arc section is fixedly connected to the connecting section, so that when the resistance adjustment segment disk 7 is rotated, the limit block 9 at one end of the resistance adjustment segment disk 7 rotates accordingly, thereby driving one end of the resistance adjustment rotating plate 6 clamped between the limit blocks 9 to approach or move away from the inertia wheel 5.

[0060] In a specific example, a rotating shaft 17 is arranged at intervals on the inner wall of the shell 1, and the rotating shaft 17 is located in the arc groove of the resistance adjustment segment disk 7. The connecting section of the resistance adjustment rotating plate 6 is rotatably connected to the rotating shaft 17. The concave surface of the arc section is opposite to the outer peripheral surface of the inertia wheel 5. One end of the arc section is fixedly connected to the connecting section, and the other end of the arc section is located between the two limit blocks 9. A magnetic block 8 is fixed on the concave surface of the other end of the arc section opposite to the inertia wheel 5.

[0061] On the basis of the above technical solution, the resistance device also includes a limit spring sheet 10 and a limit stop column 11, one end of the limit spring sheet 10 is fixed on the shell 1, and the limit stop column 11 is fixed to the other end of the limit spring sheet 10, and the resistance adjustment segment disk 7 has a plurality of limit grooves arranged in sequence along the circumferential direction, and the limit stop column 11 is clamped in one of the limit grooves.

[0062] One end of the limit spring sheet 10 is fixed on the housing 1, and the other end is provided with a limit stop post 11, and the resistance adjustment segment disk 7 is provided with a limit groove for engaging the limit stop post 11. When the resistance needs to be adjusted, an external force is applied to the resistance adjustment segment disk 7, and when the resistance adjustment segment disk 7 rotates, the side wall of the limit groove applies a tangential force to the limit stop post 11, and the limit spring sheet 10 is compressed radially inward along the resistance adjustment segment disk 7, so that the limit stop post 11 exits the limit groove, so that the resistance adjustment segment disk 7 can be smoothly rotated. When the resistance adjustment segment disk 7 rotates to a certain position, the external force applied to the resistance adjustment segment disk 7 is stopped, and the limit stop post 11 is engaged in the limit groove, so that when the resistance adjustment segment disk 7 is not subjected to an external force, the position of the resistance adjustment segment disk 7 can be fixed, so that the distance between the magnetic block 8 at one end of the resistance adjustment rotating sheet 6 and the inertia wheel 5 remains unchanged, that is, the magnetic gap between the magnetic block 8 and the inertia wheel 5 remains unchanged, the cut magnetic lines of force remain unchanged, and the resistance remains unchanged. Specifically, the limiting groove is semicircular, triangular, or other shapes, and the limiting stop post 11 is a shape matching the limiting groove, or other shapes that can be snapped into the limiting groove.

[0063] On the basis of the above technical solution, it also includes an electronic display 12 and a magnet 15. The electronic display 12 is arranged on the outside of the shell 1. A sensor is arranged inside the electronic display 12. The end of the counterweight assembly 3 close to the inner wall of the shell 1 is fixedly connected to the magnet 15.

[0064] Specifically, the sensor is a Hall sensor or other sensors for detecting data.

[0065] Optionally, a reed switch is provided in the electronic display 12 .

[0066] In a specific example, a Hall sensor is provided in the electronic display 12, such as Figure 1As shown, the counterweight assembly 3 is a gravity ball, and a magnet 15 is arranged at one end of the gravity ball close to the inner wall of the shell 1. During the rotation of the gravity ball, when passing through the Hall sensor arranged on the electronic display 12, the Hall sensor will sense the magnetism of the magnet 15 on the gravity ball, so that the number of rotations and the rotation speed of the gravity ball can be accurately recorded, and the relevant data can be presented to the trainee through the display screen of the electronic display 12.

[0067] On the basis of the above technical solution, a power supply device is provided inside the shell 1, and the power supply device includes a generator 13 and a gear 14. The gear 14 is sleeved on the other end of the sleeve component 4, and the gear 14 is fixedly connected to the sleeve component 4. The generator 13 is fixed to the inner wall of the shell 1, and the gear 14 is transmission-connected to the output shaft of the generator 13. The generator 13 is electrically connected to the electronic display 12.

[0068] By setting the generator 13 and the gear 14, during the swinging of the fitness trainer, the counterweight assembly 3 drives the gear 14 installed on the sleeve component 4 to rotate, and the gear 14 is connected to the output shaft of the generator 13, thereby driving the generator 13 to work and generate electricity; at the same time, the setting of the power supply device can supply power to the electronic display 12 or other electrical devices.

[0069] Alternatively, the power supply device may also be a battery.

[0070] In a specific example, Figure 6 As shown, the principle of adjusting the resistance of the counterweight assembly 3 by cutting the magnetic flux lines by the inertia wheel 5 is as follows: a conductive sleeve 19, i.e., a conductive layer, is sleeved on the outer circumference of the inertia wheel 5. The inertia wheel 5 provides inertia and acts as a magnetic conductor. The conductive layer generates magnetic control resistance by cutting the magnetic field through the rotating inertia wheel 5. Imagine the conductive layer as being composed of dense conductive thin wires. The direction of the magnetic field is along the radial direction of the inertia wheel 5. When the inertia wheel 5 rotates, the conductive thin wires cut the magnetic field to generate instantaneous current. The right-hand rule is used to determine the direction of the current. That is, put the right hand into the magnetic field, let the magnetic flux lines penetrate the palm vertically, the thumb is perpendicular to the plane of the other four fingers, and the thumb points to the direction of the conductor's movement. The direction pointed by the four fingers is the direction of the induced current in the conductor, that is, the direction of the current is along the axial direction of the inertia wheel 5. The conductor moving in the magnetic field will produce a force. The direction of the instantaneous force can be determined according to the left-hand rule, that is, put the left hand into the magnetic field, let the magnetic flux lines vertically penetrate the palm, the thumb is perpendicular to the plane of the other four fingers, and the four fingers point to the direction of the current. The direction pointed by the thumb is the direction of the force on the conductor in the magnetic field. It can be seen that the direction of the force on the moving conductor is opposite to the direction of rotation of the inertia wheel 5, thus generating magnetic control resistance. The magnetic control resistance is represented by F, and the magnitude of the magnetic control resistance F is expressed by the formula:

[0071] F=q×v×B

[0072] q is the charge of the charged particle, which is equivalent to the magnitude of the current. Under the same voltage, the smaller the resistance of the conductive layer, the greater the current and the greater the resistance.

[0073] v is the speed of the charged particles, that is, the rotation speed of the inertia wheel 5. The faster the speed, the greater the resistance.

[0074] B is the magnetic induction intensity, which is related to the surface magnetic field intensity and magnetic gap of the magnet. The greater the magnetization intensity of the magnet, the greater the magnetic control resistance; the smaller the magnetic gap, the greater the magnetic field intensity and the greater the resistance, and vice versa.

[0075] The permanent magnet is mounted on one end of the resistance adjustment rotating plate 6, and one side of the resistance adjustment rotating plate 6 is stuck between two limit blocks 9. The trainee manually rotates the resistance adjustment segment disk 7, and the limit block 9 on the resistance adjustment segment disk 7 rotates accordingly. When the resistance adjustment segment disk 7 is rotated clockwise, as the limit block 9 rotates clockwise, the limit block 9 drives one end of the resistance adjustment rotating plate 6 that fixes the permanent magnet to approach the inertia wheel 5, thereby reducing the magnetic gap between the permanent magnet and the inertia wheel 5, thereby increasing the resistance; when the resistance adjustment segment disk 7 is rotated counterclockwise, as the limit block 9 rotates counterclockwise, the limit block 9 drives one end of the resistance adjustment rotating plate 6 that fixes the permanent magnet to move away from the inertia wheel 5, thereby increasing the magnetic gap between the permanent magnet and the inertia wheel 5, thereby reducing the resistance.

[0076] In the description of the present invention, it should be understood that the terms "center", "length", "up", "down", "inside", "outside", "clockwise", "counterclockwise", "radial", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0077] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0078] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0079] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0080] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0081] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A fitness training device, characterized in that: It comprises a central shaft (2), a counterweight assembly (3) and a sleeve component (4); the sleeve component (4) is rotatably sleeved on the outside of the central shaft (2); and the counterweight assembly (3) is fixedly connected to the sleeve component (4).

2. The fitness trainer according to claim 1, characterized in that It also comprises an inertia wheel (5), wherein the inertia wheel (5) is sleeved on one end of the sleeve component (4) and is fixedly connected to the sleeve component (4).

3. The fitness trainer according to claim 2, characterized in that It also comprises a shell (1), the central axis (2) passes through the shell (1) and is fixedly connected to the shell (1), and the counterweight assembly (3), the sleeve component (4) and the inertia wheel (5) are all arranged in the shell (1).

4. The fitness trainer according to claim 3, characterized in that: A resistance device is also provided in the housing (1), the resistance device is connected to the housing (1), and one side of the resistance device is spaced apart from or abuts against the outer peripheral surface of the inertia wheel (5).

5. The fitness trainer according to claim 4, characterized in that The resistance device comprises a resistance adjustment rotating plate (6), a resistance adjustment segment disk (7) and a resistance component. The resistance adjustment segment disk (7) is rotatably connected to the housing (1). Two limit blocks (9) are arranged on the resistance adjustment segment disk (7) at intervals. A conductive sleeve (19) is fixedly sleeved on the outer side of the inertia wheel (5). The resistance adjustment rotating plate (6) is arranged on the outer side of the inertia wheel (5). The resistance component is a magnetic block (8). One end of the resistance adjustment rotating plate (6) is fixedly connected to the magnetic block (8) and is located between the two limit blocks (9). The other end of the resistance adjustment rotating plate (6) is hinged to the housing (1).

6. The fitness trainer according to claim 5, characterized in that The resistance adjustment segment disk (7) is in the shape of a circular ring. An arc groove is provided on the resistance adjustment segment disk (7) along its circumference. Two limit blocks (9) are provided at one end of the arc groove. The two limit blocks (9) are radially spaced apart from each other along the resistance adjustment segment disk (7). The other end of the resistance adjustment rotating plate (6) is located in the arc groove.

7. The fitness trainer according to claim 5, characterized in that The resistance adjustment rotating plate (6) comprises a connecting section and an arc section, the connecting section and the housing (1) are hinged, one end of the arc section is fixedly connected to the connecting section, the other end of the arc section is located between the two limit blocks (9), and the magnetic block (8) is fixedly connected to the other end of the arc section.

8. The fitness trainer according to claim 7, characterized in that The resistance device further comprises a limit spring sheet (10) and a limit stop column (11); one end of the limit spring sheet (10) is fixed to the housing (1); the limit stop column (11) is fixed to the other end of the limit spring sheet (10); the resistance adjustment segment disk (7) has a plurality of limit grooves arranged in sequence along the circumferential direction; the limit stop column (11) is clamped in one of the limit grooves.

9. The fitness trainer according to any one of claims 3 to 8, characterized in that: It also comprises an electronic display (12) and a magnet (15), wherein the electronic display (12) is arranged on the outside of the shell (1), a sensor is arranged inside the electronic display (12), and one end of the counterweight assembly (3) close to the inner wall of the shell (1) is fixedly connected to the magnet (15).

10. The fitness trainer according to claim 9, characterized in that A power supply device is arranged inside the housing (1), and the power supply device comprises a generator (13) and a gear (14); the gear (14) is sleeved on the other end of the sleeve component (4); the gear (14) is fixedly connected to the sleeve component (4); the generator (13) is fixed to the inner wall of the housing (1); the gear (14) is drivingly connected to the output shaft of the generator (13); and the generator (13) is electrically connected to the electronic display (12).

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