Sports bicycle

Abstract

The utility model discloses a sports bicycle. An inner gear ring on the sports bicycle is fixedly arranged on a mounting seat; the rotating frame is rotationally arranged relative to the inner gear ring, and a rotating shaft wound by the rotating frame during rotation is coaxial with the axis of the inner gear ring; the reversing outer gear is meshed between the inner gear ring and the pedal gear and is rotationally mounted on the rotating frame so as to drive the rotating frame to rotate when the pedal gear rotates; the crank pedal is rotationally installed at the fixed position of the rotating frame, a rotating shaft of the crank pedal is eccentric and parallel to the axis of the inner gear ring, the pedal gear is fixed to the crank pedal, the crank pedal is in transmission connection with the inner gear ring through the pedal gear and the reversing outer gear, and the crank pedal is used for the legs of a person located outside the installation base to pedal. The crank pedal rotates around the rotating shaft of the crank pedal, drives the reversing outer gear to drive the rotating frame to rotate during rotation, and then drives the crank pedal to revolve around the rotating shaft of the rotating frame along with the rotating frame. When the leg pedal training device is used for leg pedal training, the legs of a user can be lifted and stretched at the same time.

Description

Technical Field

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

[0002] Current exercise bikes only allow users to pedal with their legs, with the pedals rotating around their own axis to simulate pedaling a bicycle for training. The function is relatively simple. If the pedals could be displaced as a whole during pedaling training, thus lifting and stretching the legs, the fitness functions of exercise bikes would be greatly enriched. Utility Model Content

[0003] The purpose of this invention is to provide a sports bicycle that solves the technical problem of how to simultaneously lift and stretch the user's legs while performing leg pedaling training.

[0004] To achieve the above objectives, the solution of this utility model is: a sports bicycle, including a mounting base, an internal gear ring, a rotating frame, a reversing external gear, a pedal gear, and a crank pedal;

[0005] The internal gear ring is fixedly mounted on the mounting base;

[0006] The rotating frame is rotatably mounted relative to the internal gear ring, and the axis of rotation around which it rotates is coaxial with the axis of the internal gear ring.

[0007] The reversing external gear meshes between the internal gear ring and the foot pedal gear, and is rotatably mounted on the rotating frame so as to drive the reversing external gear to rotate when the foot pedal gear rotates, and the reversing external gear drives the rotating frame to rotate.

[0008] The crank pedal is mounted on a fixed position on the rotating frame, and the crank pedal's shaft is eccentric and parallel to the axis of the internal gear ring. The pedal gear is fixed on the crank pedal, and the crank pedal is connected to the internal gear ring through the pedal gear and the reversing external gear. The crank pedal is used by the legs of a person located outside the mounting base to push, so that the crank pedal rotates around its own shaft. When it rotates, it drives the reversing external gear to drive the rotating frame to rotate, and then drives the crank pedal to revolve around the rotating frame's shaft.

[0009] Furthermore, the crank pedal includes a crank and a pedal body. The crank includes a horizontal shaft, which is coaxial with the crank pedal's pivot. Both ends of the horizontal shaft extend through the mounting base. A connecting rod is fixedly installed radially at each end of the horizontal shaft. The two connecting rods extend in opposite directions, and a pedal body is rotatably installed at each end. The two pedal bodies are used for the left and right legs of a person to pedal.

[0010] Furthermore, a pedal gear is fixed on the crank pedal, and the pedal gear is coaxial with the crank pedal shaft. The outer ring of the pedal gear meshes with the reversing gear, so that the crank pedal and the reversing gear are connected by the pedal gear transmission.

[0011] Furthermore, the rotating frame is rotatably and fixedly mounted on the outside of the internal gear ring.

[0012] Furthermore, the rotating frame forms a retaining edge surrounding the outer periphery of the internal gear ring. The retaining edge is fixed to the rotating frame, and a rolling element is provided between the retaining edge and the rotating frame. The outer periphery of the internal gear ring rests on the side of the rolling element.

[0013] Furthermore, the inner ring of the retaining flange is surrounded by an array of multiple rolling elements, each of which abuts against the outer circumference of the inner gear ring to roll when the rotating frame rotates relative to the inner gear ring, and is laterally limited to the outside of the inner gear ring.

[0014] Furthermore, the mounting base includes a left half shell and a right half shell, which are snapped together to form the mounting base. The internal gear ring, the rotating frame, and the reversing external gear are all located inside the mounting base, and their axes extend to the left and right. The left or right end of the internal gear ring has multiple protrusions, and the left or right half shell on the side corresponding to the protrusions has multiple grooves. Each groove is used for a protrusion to be inserted so that the internal gear ring is fixed in the mounting base.

[0015] Furthermore, a support foot is provided on the bottom side of the mounting base.

[0016] Furthermore, the rolling element is made of a flexible, wear-resistant material.

[0017] The beneficial effects of this utility model after adopting the above solution are as follows: the crank pedal is rotatably mounted on the rotating frame, and the crank pedal is used by the user's legs to pedal, so that the crank pedal rotates around its own axis. This action allows the user to exercise by simulating the pedaling action of riding a bicycle. Since the internal gear ring is fixedly mounted on the mounting base, the rotating frame is rotatably mounted relative to the internal gear ring, and the axis of rotation is coaxial with the axis of the internal gear ring. The reversing external gear meshes in the internal gear ring and is rotatably mounted on the rotating frame. Therefore, when the reversing external gear rotates, it will drive the rotating frame to rotate. The crank pedal is rotatably mounted on the rotating frame, and the axis of rotation of the crank pedal is eccentric and parallel to the axis of the internal gear ring. The crank pedal is connected to the reversing external gear through the pedal gear fixedly mounted on it. Thus, when the crank pedal rotates, it will drive the rotating frame to rotate, thereby causing the entire crank pedal to revolve around the axis of rotation of the rotating frame, realizing the overall lifting and lowering of the user's legs. Attached Figure Description

[0018] Figure 1 This is an exploded view of the present invention;

[0019] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0020] Figure 3 for Figure 1 A magnified view of a section at point B in the middle;

[0021] Figure 4 This is an exploded view of another aspect of the present invention;

[0022] Figure 5 for Figure 4 A magnified view of a section at point C;

[0023] Figure 6 for Figure 4 A magnified view of a section at point D;

[0024] Figure 7 This is a three-dimensional structural diagram of the present invention;

[0025] Figure 8 This is a three-dimensional structural diagram of the present invention with a seat.

[0026] Labeling Explanation: 1-Mounting base, 2-Internal gear ring, 3-Spinning frame, 4-Reversing external gear, 5-Crank pedal, 6-Crank, 7-Pedal body, 8-Horizontal shaft, 9-Connecting rod, 10-Pedal gear, 11-Side flange, 12-Rolling element, 13-Left half shell, 14-Right half shell, 15-Boss, 16-Groove, 17-Support leg, 18-Bearing, 19-Left rotating frame, 20-Right rotating frame, 21-Mounting slot, 22-Seat. Detailed Implementation

[0027] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Unless otherwise expressly defined, the use of directional terms such as "center," "lateral," "longitudinal," "horizontal," "vertical," "top," "bottom," "inner," "outer," "upper," "lower," "front," "rear," "left," "right," "clockwise," and "counterclockwise" in the claims, description, and accompanying drawings of this invention is merely for the convenience of describing the invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific scope of protection of this invention.

[0029] This utility model provides a sports bicycle, such as Figure 1-8As shown, it includes a mounting base 1, an internal gear ring 2, a rotating frame 3, a reversing external gear 4, a foot pedal gear 10, and a crank pedal 5. The mounting base 1 can be used directly on the ground or fixed to a corresponding exercise bike frame; it is not specifically limited. Specifically, in this embodiment, a support foot 17 is fixedly provided on the bottom side of the mounting base 1. The mounting base 1 rests on the ground through the support foot 17. The support foot 17 can have different shapes and is not specifically limited. Specifically, in this embodiment, two types of support foot 17 structures are provided. One type of support foot 17 is only located on the bottom side of the mounting base 1, used to stably support the mounting base 1 on the ground, without a seat (e.g., Figure 7 As shown in the structure), another type of support leg 17, after being fixed to the mounting base 1, extends to the rear of the mounting base 1, and a seat 22 for the user to sit on is also provided on top of it (as shown in the structure). Figure 8 (As shown in the structure); the internal gear ring 2 is fixedly mounted on the mounting base 1, and the fixing method is not limited. The specific fixing structure used in this embodiment will be given later; the rotating frame 3 can be directly rotatably mounted on the internal gear ring 2, or it can be rotatably mounted on a rotatable component on the mounting base 1, as long as the rotating frame 3 can be rotatably mounted relative to the internal gear ring 2, and the axis of rotation is coaxial with the axis of the internal gear ring 2; the reversing external gear 4 meshes in the internal gear ring 2 and is rotatably mounted in a fixed position on the rotating frame 3. Of course, it can be understood that in order to achieve the meshing of the reversing external gear 4 and the internal gear ring 2, the axis of rotation of the reversing external gear 4 mounted on the rotating frame 3 must be eccentric to the axis of the internal gear ring 2, so that when the reversing external gear 4 rotates, it can drive the rotating frame 3 to rotate; the crank pedal 5 is a common pedal assembly on bicycles or exercise bikes. The specific structure is given later. The crank pedal 5 is rotatably mounted on the fixed position of the rotating frame 3, and the rotation axis of the crank pedal 5 is eccentric and parallel to the axis of the internal gear ring 2. The crank pedal 5 and the reversing external gear 4 are connected by a pedal gear 10 fixedly mounted on the crank pedal 5. Of course, it can be understood that the reversing external gear 4 is not limited to a single gear, but can also be a gear set. The crank pedal 5 is used by the legs of the person located outside the mounting base 1 to pedal, so that the crank pedal 5 rotates around its own rotation axis. When rotating, it drives the reversing external gear 4 to drive the rotating frame 3 to rotate, thereby causing the crank pedal 5 to revolve around the rotation axis of the rotating frame 3. Thus, the user sits next to the exercise bicycle and pedals the crank pedal 5 to practice stepping movements. The revolution of the crank pedal stretches the user's legs by lifting and lowering them.

[0030] Specifically, in this embodiment, the crank pedal 5 includes a crank 6 and a pedal body 7. The crank 6 includes a horizontal shaft 8, which is coaxial with the rotating shaft of the crank pedal 5. More specifically, a bearing 18 is provided on the rotating frame 3, and the horizontal shaft 8 is mounted on the bearing 18, forming a structure that rotates the crank pedal 5 on the rotating frame 3. Therefore, the axis of the horizontal shaft 8 is coaxial with the rotating shaft of the crank pedal 5. The two ends of the horizontal shaft 8 extend through the mounting base 1, and a connecting rod 9 is fixedly provided radially at each end of the horizontal shaft 8. The two connecting rods 9 extend in opposite directions, and a pedal body 7 is rotatably mounted at each end. The two pedal bodies 7 are used for the left and right legs of the person to pedal.

[0031] Specifically, the foot pedal gear 10 is coaxial with the crank pedal 5's rotating shaft. The foot pedal gear 10 is fixed on the horizontal shaft 8, and the outer ring of the foot pedal gear 10 meshes with the reversing external gear 4, so that the crank pedal 5 and the reversing external gear 4 are connected by transmission through the foot pedal gear 10.

[0032] Preferably, in this embodiment, to simplify the structure, the rotating frame 3 is rotatably mounted outside the inner gear ring 2. The rotating frame 3 forms a retaining edge 11 surrounding the outer periphery of the inner gear ring 2. The retaining edge 11 is fixed to the rotating frame 12. A rolling element 12 is provided between the inner ring of the retaining edge 11 and the outer periphery of the inner gear ring 2. The rolling element 12 can be a roller or a ball, etc. Preferably, the rolling element 12 is made of a flexible wear-resistant material. The outer periphery of the inner gear ring (2) abuts against the side of the rolling element (12) so that the rotating frame 3 is rotatably mounted on the inner gear ring 2. More specifically, in this embodiment, the inner ring of the retaining edge 11 has a plurality of mounting grooves 21 arranged in a ring. Each mounting groove 21 is equipped with a rolling element 12. Each rolling element 12 abuts against the outer periphery of the inner gear ring 2 so as to roll when the rotating frame 3 rotates relative to the inner gear ring 2 and to be side-limited to the outside of the inner gear ring.

[0033] To facilitate the installation and fixation of the internal gear ring 2, the mounting base 1 includes a left half-shell 13 and a right half-shell 14. Figure 1The left and right halves of the shell (not referring to the actual left and right in use) are engaged to form the mounting base 1. The internal gear ring 2, the rotating frame 3, and the reversing external gear 4 are all located inside the mounting base 1, and their axes extend left and right. The left or right end of the internal gear ring 2 has multiple protrusions 15. The left or right half of the shell 13 or the right half of the shell 14 corresponding to the protrusions 15 has multiple grooves 16. Specifically, in this embodiment, the right edge of the internal gear ring 2 has multiple protrusions 15 arranged in a ring around it, and the right half of the shell 14 has multiple grooves 16. The groove is used for a boss 15 to be inserted so that the internal gear ring 2 is fixed in the mounting base 1. The rotating frame 3 is located on the left side of the internal gear ring 2. The retaining edge 11 on the rotating frame 3 is sleeved on the internal gear ring 2 from the left side. The rotating frame 3 specifically includes a left rotating frame 19 and a right rotating frame 20. The left rotating frame 19 and the right rotating frame 20 are connected and fixed to form the rotating frame 3. The reversing external gear 4 and the foot pedal gear 10 are installed between the left rotating frame 19 and the right rotating frame 20. The retaining edge 11 is formed on the left rotating frame 19. The right rotating frame 20 extends into the internal gear ring 2.

[0034] The above description is only a preferred embodiment of this utility model and is not intended to limit the design of this case. All equivalent changes made based on the key design of this case shall fall within the protection scope of this case.

Claims

1. A sports pedalling cycle characterised in that: The utility model provides a kind of pedal device, including mounting seat (1), inner gear ring (2), rotating frame (3), reversing external gear (4), foot gear (10) and crank pedal (5); The inner gear ring (2) is fixedly arranged on the mounting seat (1); The rotating frame (3) is rotatably arranged relative to the inner gear ring (2), and the rotation axis thereof is coaxial with the axis of the inner gear ring (2) when rotating; The reversing external gear (4) is meshed between the inner gear ring (2) and the foot gear (10), and is rotatably arranged on the rotating frame (3) to drive the reversing external gear (4) to rotate when the foot gear (10) rotates, and the reversing external gear (4) drives the rotating frame (3) to rotate; The crank pedal (5) is rotatably arranged at a fixed position of the rotating frame (3), and the rotation axis of the crank pedal (5) is eccentric and parallel to the axis of the inner gear ring (2), the foot gear (10) is fixed on the crank pedal (5), and the crank pedal (5) is drivingly connected with the inner gear ring (2) through the foot gear (10) and the reversing external gear (4), and the crank pedal (5) is used for the legs of a person outside the mounting seat (1) to pedal, so that the crank pedal (5) rotates around its own rotation axis, and drives the reversing external gear (4) to drive the rotating frame (3) to rotate when rotating, and in turn drives the crank pedal (5) to revolve around the rotation axis of the rotating frame (3) with the rotating frame (3).

2. A sports pedaling vehicle as claimed in claim 1, characterized in that: The crank pedal (5) includes a crank (6) and a pedal body (7), the crank (6) includes a horizontal shaft (8) coaxial with the rotation axis of the crank pedal (5), the horizontal shaft (8) extends through and protrudes from the mounting seat (1) at both ends, and a connecting rod (9) is fixedly arranged at each end of the horizontal shaft (8) in a radial direction, the two connecting rods (9) extend towards each other, and a pedal body (7) is rotatably arranged at the distal end of each connecting rod (9), and the two pedal bodies (7) are used for the left and right legs of a person to pedal, respectively.

3. The exercise bicycle of claim 1 wherein: A foot gear (10) is fixedly arranged on the crank pedal (5), the foot gear (10) is coaxial with the rotation axis of the crank pedal (5), and the outer ring of the foot gear (10) is meshed with the reversing external gear (4), so that the crank pedal (5) is drivingly connected with the reversing external gear (4) through the foot gear (10).

4. The exercise bicycle of claim 1 wherein: The rotating frame (3) is rotatably arranged outside the inner gear ring (2).

5. A sports pedaling vehicle as claimed in claim 4, characterized in that: The rotating frame (3) forms a retaining rim (11) surrounding the outer periphery of the inner gear ring (2), the retaining rim (11) is fixed to the rotating frame (3), and a rolling element (12) is arranged between the retaining rim (11) and the rotating frame (3), and the outer periphery of the inner gear ring (2) is located on the side of the rolling element (12).

6. A sports pedaling vehicle as claimed in claim 5, characterized in that: A plurality of rolling elements (12) are arranged in an array around the inner ring of the retaining rim (11), each rolling element (12) abuts against the outer periphery of the inner gear ring (2) to roll when the rotating frame (3) rotates relative to the inner gear ring (2), and is laterally limited on the outer side of the inner gear ring (2).

7. The exercise bicycle of claim 5 wherein: The mounting seat (1) comprises a left half shell (13) and a right half shell (14), the left half shell (13) and the right half shell (14) are buckled left and right to form the mounting seat (1), the inner gear ring (2), the rotating frame (3) and the reversing external gear (4) are all located inside the mounting seat (1), and the axes of the three are all left and right extensions, the left end or the right end of the inner gear ring (2) is provided with a plurality of bosses (15), a plurality of recesses (16) are formed on the left half shell (13) or the right half shell (14) corresponding to the side where the bosses (15) are located, each recess is used for embedding one boss (15), so that the inner gear ring (2) is fixed in the mounting seat (1).

8. The exercise bicycle of claim 1 wherein: The bottom side of the mounting seat (1) is provided with a supporting leg (17).

9. The exercise bicycle of claim 5 wherein: The rolling element (12) is made of flexible wear-resistant material.

Images