An exercise treadmill

Abstract

The utility model discloses a kind of body-building treadmills, including front fork, front wheel, handlebar and frame, the both sides of the frame are equipped with rear wheel, the frame is provided with the tread drive device of mutual symmetrical distribution, each the tread drive device includes the frame body that can be set up and down movement on the frame, the frame body one end is provided with footboard, the frame body other end is movably connected with the frame, and the frame body other end is provided with fixed plate, the fixed plate is provided with rack, the frame is provided with mounting bracket, the mounting bracket is provided with transmission shaft, the transmission shaft one end is provided with the main gear matched with the rack, the transmission shaft other end is provided with outer gear disc, the rear wheel is provided with transmission assembly, the outer gear disc is connected with the transmission assembly by transmission chain. The utility model is designed, and user is more labor-saving in up and down treading process, transmission is more stable and reliable, and more can satisfy use demand.

Description

Technical Field

[0001] This utility model relates to the field of stepper technology, and in particular to a fitness stepper. Background Technology

[0002] The exercise stepper is a type of exercise stepper used for shaping and fat reduction. With the development of science and technology, there are more and more types of exercise steppers, and the demand for exercise steppers is also increasing. Although there is an exercise stepper as disclosed in the Chinese utility model patent with authorization announcement number CN206604068U, in which the pedals can move up and down and compress the accumulator spring, thereby driving the drive to rotate, and then driving the drive tire to rotate, so as to achieve the purpose of transportation and exercise, the user has to be resisted by the spring when using it, which is strenuous and not conducive to normal use. Therefore, it is necessary to improve the existing technology. Utility Model Content

[0003] (a) Technical problems that need to be solved

[0004] To address the shortcomings of existing technologies, this utility model provides a fitness stepping bike that is designed to be less strenuous for users during up-and-down pedaling, with more stable and reliable transmission, and better meets user needs.

[0005] (ii) Technical solutions to be adopted

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A fitness stepper includes a front fork, a front wheel mounted at the bottom of the front fork, a handlebar mounted at the top of the front fork, a frame connected to the lower middle part of the front fork, rear wheels mounted on both sides of the frame, and symmetrically distributed step drive devices on the frame. Each step drive device includes a frame that can move up and down on the frame, a foot plate at one end of the frame, and a fixed plate at the other end of the frame. A rack is mounted on the fixed plate. A mounting bracket is mounted on the frame, and a drive shaft is mounted in the mounting bracket. A main gear that meshes with the rack is mounted at one end of the drive shaft, and an external gear is mounted at the other end of the drive shaft. A transmission assembly is mounted on the rear wheel, and the external gear is connected to the transmission assembly via a transmission chain.

[0008] Preferably, the frame is provided with an anti-detachment bracket to prevent the feet from slipping off, and the anti-detachment bracket is located at the foot plate position.

[0009] Preferably, the frame is provided with an outer cover for covering the fixing plate, and the upper end face of the outer cover is provided with an opening for the frame to move up and down.

[0010] Preferably, the frame is provided with an outer cover for covering the fixing plate, and the upper end face of the outer cover is provided with an opening for the frame to move up and down.

[0011] Preferably, the transmission assembly includes a shaft disposed on the rear wheel and a sleeve disposed on the frame. The sleeve is fitted onto the shaft, and a gear disk is disposed on the shaft at the outlet of the sleeve. The gear disk and the external gear disk are connected by a transmission chain.

[0012] Preferably, the rear wheel includes a brake disc mounted on the rear wheel, a brake bracket mounted on the brake disc, a disc brake mounted on the brake bracket, and the disc brake being disposed on the edge of the brake disc.

[0013] Preferably, the frame is provided with an auxiliary frame that facilitates the rotation of the drive chain.

[0014] Preferably, the frame includes a main frame mounted on the front fork, and the main frame has symmetrically arranged fixing frames located on the side of the main frame. The fixing frames are provided with the rear wheel and the step drive device.

[0015] Preferably, a shock-absorbing component is provided between the main frame and the corresponding fixed frame.

[0016] (III) The technical effects to be achieved

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] Firstly, each step drive device of this utility model includes a frame that can move up and down on the chassis. One end of the frame is equipped with a foot plate, and the other end of the frame is movably connected to the chassis. A fixing plate is also provided at the other end of the frame, and a rack is provided on the fixing plate. A mounting frame is provided on the chassis, and a drive shaft is provided in the mounting frame. One end of the drive shaft is equipped with a main gear that meshes with the rack, and the other end of the drive shaft is equipped with an external gear. A transmission assembly is provided on the rear wheel, and the external gear is connected to the transmission assembly through a transmission chain. This gear and transmission chain transmission method is more conducive to smoother wheel operation, and also creates another transmission method with a wider range of choices. It is also beneficial to make it easier for users to use the device.

[0019] Secondly, a shock-absorbing component is provided between the main frame and the corresponding fixed frame of this utility model. This not only helps to improve the shock absorption effect, but also helps to prevent the vehicle user from falling over when standing still on it, which is more conducive to meeting the user's needs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 3 This is a schematic diagram of the raised state of a step drive device according to this utility model.

[0023] Figure 4 This is an exploded view of the present invention.

[0024] Figure 5 This is a three-dimensional schematic diagram of the present invention.

[0025] Figure 6 for Figure 5 A magnified view of a portion of point A in the middle.

[0026] In the diagram: 1, front fork; 2, front wheel; 3, handlebars; 4, frame; 5, rear wheel; 6, step drive; 7, disc brake assembly; 8, auxiliary frame; 9, shock absorber assembly; 41, main frame; 42, mounting bracket; 60, frame; 61, footplate; 62, mounting plate; 63, rack; 64, mounting bracket; 65, drive shaft; 66, main gear; 67, external gear; 68, transmission assembly; 69, drive chain; 601, anti-drag bracket; 621, outer cover; 681, pivot shaft; 682, sleeve; 683, gear disc. Detailed Implementation

[0027] In the description of this utility model, it should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to or indirectly connected to the other element.

[0028] In the description of this utility model, it should be noted that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.

[0029] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of the present utility model.

[0031] Example 1: See Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6A fitness stepper includes a front fork 1, a front wheel 2 mounted on the bottom of the front fork 1, a handlebar 3 mounted on the top of the front fork 1, a frame 4 connected to the lower middle part of the front fork 1, and rear wheels 5 mounted on both sides of the frame 4. Symmetrically distributed step drive devices 6 are mounted on the frame 4, which drive the rear wheels 5 to rotate, thereby propelling the vehicle forward. Each step drive device 6 includes a frame 61 that can move up and down on the frame 4. One end of the frame 61 has a footplate 61, and the other end of the frame 61 is movably connected to the frame 4, with a fixing plate 62 at the other end. A rack 63 is mounted on the fixing plate 62. A mounting bracket 64 is mounted on the frame 4, and a transmission mechanism is installed in the mounting bracket 64. The transmission shaft 65 has a main gear 66 at one end that meshes with the rack 63, and an external gear 67 at the other end. A transmission assembly 68 is mounted on the rear wheel 5. The external gear 67 is connected to the transmission assembly 68 via a transmission chain 69. In use, when the user stands on the footplate 61, the mounting bracket 64 moves up and down, causing the rack 63 to move back and forth. This causes the rack 63 to drive the main gear 66 to rotate, which in turn drives the transmission shaft 65 to rotate. The external gear 67 also rotates with the transmission shaft 65. The external gear 67 drives the transmission assembly 68 via the transmission chain 69, which in turn causes the corresponding rear wheel 5 to rotate, thus driving the vehicle forward. This transmission method is more labor-saving.

[0032] Example 2: This can be explained based on Example 1, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the frame 60 is provided with an anti-slip bracket 601 to prevent the feet from slipping off. The anti-slip bracket 601 is located at the foot plate 61. This arrangement is beneficial to prevent the feet from slipping off when they are placed on the foot plate 61 and raised up and down, thus enabling the frame 60 to move up and down.

[0033] Example 3: This can be described based on Example 1 or Example 2, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a strip ring is provided on the fixed plate 62, and a rack 63 is provided on the inner side of the strip ring. This arrangement helps to reduce the space occupied and makes implementation easier. Further, the frame 4 is provided with an outer cover 621 to cover the fixed plate 62. The upper surface of the outer cover 621 has an opening for the frame 60 to move up and down. This arrangement not only helps to prevent debris from entering the rack 63 and the main gear 66 and affecting normal movement, but also does not affect the normal up and down movement of the frame 60.

[0034] Example 4: This can be described based on Example 1, Example 2, or Example 3, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the transmission assembly 68 includes a shaft 681 mounted on the rear wheel 5 and a sleeve 682 mounted on the frame 4. The sleeve 682 is fitted onto the shaft 681, and a gear disc 683 is mounted on the shaft 681 at the outlet of the sleeve 682. The gear disc 683 and the external gear disc 67 are connected by a transmission chain 69. This sleeve 682 helps protect the shaft 681 and ensures that the rotation of the shaft 681 is not affected. Further, disc brake assemblies 7 are installed on both rear wheels 5 in opposite directions, providing braking effect and improving safety. Specifically, each rear wheel 5 includes a brake disc mounted on it, a brake bracket mounted on the brake disc, and a disc brake mounted on the brake bracket. The disc brake is located on the edge of the brake disc. By using a mechanical disc brake, the tension of the brake cable causes the disc brake to rub against and clamp the brake disc, producing a braking effect. Mechanical disc brakes offer greater compatibility and are safer.

[0035] Example 5: This can be described based on Example 1, Example 2, Example 3, or Example 4, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the frame 4 is provided with an auxiliary frame 8 to facilitate the rotation of the transmission chain 69. This arrangement facilitates the smoother rotation of the transmission chain 69, thereby promoting the movement of the transmission component 68.

[0036] Example 6: This can be described based on Example 1, Example 2, Example 3, Example 4, or Example 5, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the frame 4 includes a main frame 41 mounted on the front fork 1. Symmetrical mounting brackets 42 are provided on the main frame 41, located on the sides of the main frame 41. A rear wheel 5 and a step drive device 6 are mounted on the mounting brackets 42. This arrangement is reasonable and easy to implement. Furthermore, a shock-absorbing component 9 is provided between the main frame 41 and the corresponding mounting bracket 42. This not only improves the shock absorption effect but also helps prevent the vehicle user from tipping over when standing still, further meeting user needs. Specifically, the shock-absorbing component 9 can be made of springs or elastic rubber, offering a variety of types and providing users with greater choice.

[0037] All standard parts used in this application can be purchased from the market, and the specific connection methods of each part adopt conventional methods such as bolts and rivets that are mature in the existing technology, which will not be described in detail here.

[0038] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection for this utility model. Therefore, any changes and modifications made to the embodiments described herein based on the innovative concept of this utility model, or equivalent structural or procedural transformations made using the content of this utility model's specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included within the scope of protection of this utility model patent.

Claims

1. A fitness stepper bike, comprising a front fork (1), a front wheel (2) mounted on the bottom of the front fork (1), a handlebar (3) provided on the top of the front fork (1), a frame (4) connected to the lower middle part of the front fork (1), and rear wheels (5) mounted on both sides of the frame (4), characterized in that: The frame (4) is provided with symmetrically distributed step drive devices (6). Each step drive device (6) includes a frame (60) that can move up and down on the frame (4). One end of the frame (60) is provided with a foot plate (61). The other end of the frame (60) is movably connected to the frame (4). The other end of the frame (60) is provided with a fixing plate (62). A rack (63) is provided on the fixing plate (62). The frame (4) is provided with a mounting frame (64). A drive shaft (65) is provided in the mounting frame (64). One end of the drive shaft (65) is provided with a main gear (66) that cooperates with the rack (63). The other end of the drive shaft (65) is provided with an external gear (67). A transmission assembly (68) is provided on the rear wheel (5). The external gear (67) and the transmission assembly (68) are connected by a transmission chain (69).

2. The exercise stepper as described in claim 1, characterized in that: The frame (60) is provided with an anti-slip bracket (601) to prevent the feet from slipping off, and the anti-slip bracket (601) is located at the foot plate (61).

3. The exercise stepper as described in claim 1 or 2, characterized in that: A strip ring is provided on the fixing plate (62), and the rack (63) is provided on the inner side of the strip ring.

4. The exercise stepper as described in claim 3, characterized in that: The frame (4) is provided with an outer cover (621) for covering the fixing plate (62), and the upper surface of the outer cover (621) is provided with an opening for the frame (60) to move up and down.

5. The exercise stepper as described in claim 1, 2, or 4, characterized in that: The transmission assembly (68) includes a shaft (681) disposed on the rear wheel (5) and a sleeve (682) disposed on the frame (4). The sleeve (682) is fitted onto the shaft (681), and a gear disk (683) is disposed on the shaft (681) at the outlet of the sleeve (682). The gear disk (683) and the external gear disk (67) are connected by the transmission chain (69).

6. The exercise stepper as described in claim 5, characterized in that: The rear wheel (5) includes a brake disc mounted on the rear wheel (5), a brake frame mounted on the brake disc, a disc brake mounted on the brake frame, and the disc brake mounted on the edge of the brake disc.

7. The exercise stepper as described in claim 1, 2, 4, or 6, characterized in that: The frame (4) is provided with an auxiliary frame (8) to facilitate the rotation of the transmission chain (69).

8. The exercise stepper as described in claim 1, 2, 4, or 6, characterized in that: The frame (4) includes a main frame (41) mounted on the front fork (1), and symmetrically arranged fixing frames (42) are provided on the main frame (41). The fixing frames (42) are located on the side of the main frame (41), and the rear wheel (5) and step drive device (6) are provided on the fixing frames (42).

9. The exercise stepper as described in claim 8, characterized in that: A shock-absorbing component (9) is provided between the main frame (41) and the corresponding fixed frame (42).

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