Spinning bicycle

Abstract

The utility model discloses a spinning, which comprises a frame, a flywheel, a speed regulating device and a shield, and the frame comprises a support beam; the flywheel is rotatably connected with the frame; the speed regulation device comprises a magnetic plate, a brake pad, an elastic piece, a guide pipe, a nut, a screw and a knob, the magnetic plate is located on one side of the flywheel, one end of the magnetic plate is hinged to the supporting beam, the other end of the magnetic plate is connected with the elastic piece, and the elastic piece is arranged on the frame and used for driving the magnetic plate to deflect in the direction away from the flywheel; the guide pipe is fixedly connected with the supporting beam and axially extends towards the magnetic plate, and the nut is circumferentially fixed to the inner side of the guide pipe and can relatively move in the axial direction of the guide pipe. According to the spinning, the acting force of the rotary knob on the guide pipe when the rotary knob is pressed can be reduced, the requirement for the connecting strength of the guide pipe is lowered, the welding difficulty and the technological requirement of the guide pipe are lowered, and the reliability of brake operation and the stability of a product structure are improved.

Description

Technical Field

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

[0002] A spinning bike is a piece of fitness equipment that simulates the exercise method of pedaling a bicycle and is equipped with a resistance device for providing resistance and a brake device for braking.

[0003] In the related art, the resistance device and brake device of a spinning bike are usually set separately and need to be controlled separately, which leads to the problem of inconvenient operation; some spinning bikes integrate the resistance device and brake device together and control them through a knob. The specific operation is to rotate the knob to adjust the resistance size and press the knob down to brake.

[0004] The defects and shortcomings of the above technical solution are: when the knob is pressed downward, the guide tube below is used to bear pressure and limit the position, and the guide tube is usually fixed to the frame by welding, which places high requirements on the welding strength of the guide tube. When the strength of the guide tube is insufficient, the guide tube is prone to loose connection due to repeated pressure.

[0005] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to ordinary technicians in the field. Summary of the Invention

[0006] (1) Technical problems solved

[0007] The utility model provides a spinning bike, which at least solves the technical problem of how to reduce the force exerted by the knob on the guide tube when the knob is pressed, thereby reducing the requirement on the connection strength of the guide tube.

[0008] (2) Technical solution

[0009] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0010] A spinning bike, comprising:

[0011] The vehicle frame includes a support beam;

[0012] a flywheel rotatably connected to the frame;

[0013] The speed regulating device comprises a magnetic plate, a brake pad, an elastic member, a guide tube, a nut, a screw and a knob, wherein the magnetic plate is located on one side of the flywheel, and one end is hinged to the support beam, and the other end is connected to the elastic member, and the elastic member is provided on the vehicle frame, and is used to drive the magnetic plate to deflect in the direction away from the flywheel, and the brake pad is fixedly connected to the side of the magnetic plate close to the flywheel, the guide tube is fixedly connected to the support beam and extends axially toward the magnetic plate, the nut is circumferentially fixed to the inner side of the guide tube and can move relatively axially along the guide tube, the screw is movably provided inside the guide tube and is threadedly connected to the nut, one end of the screw is used to push the magnetic plate to move toward the flywheel, and the other end is connected to the knob, and the knob is used to rotate or press the screw;

[0014] The shield includes a main body and a support platform connected to the top of the main body, the main body is fixedly connected to the support beam, and a support surface is provided on the top of the support platform, and the support surface is fixedly arranged between the knob and the guide rod.

[0015] In some embodiments, the support platform is provided with a sleeve hole penetrating through the middle of the support surface, and is sleeved around the outer periphery of the screw rod and the guide tube through the sleeve hole.

[0016] In some embodiments, the support platform is provided with a rib plate on the inner side of the sleeve hole, the rib plate is in contact with the guide tube and the support surface, and is used to limit the movement of the guide tube in the radial direction.

[0017] In some embodiments, the cross-sectional size of the support platform gradually increases from top to bottom.

[0018] In some embodiments, the cross section of the main body is U-shaped and is clamped downwardly on the top of the support beam. The main body extends along the length of the support beam and is fixed to the side of the support beam by screws.

[0019] In some embodiments, the frame includes a column, which is connected to a support beam to form an acute angle structure with a sharp corner facing upward; the shield is arranged between the column and the support beam, and the inner side is in contact with the outer part of the column and the support beam, and the shield is fixedly connected to the column.

[0020] In some embodiments, the support beam is provided with a through hole penetrating downward, and the guide tube is fixed inside the through hole.

[0021] (3) Beneficial effects

[0022] Compared with the prior art, the spinning bike provided by the present invention has the following beneficial effects:

[0023] When the spinning bike is working, the speed regulating device generates resistance to the flywheel through the magnetic plate. When adjusting the resistance, the knob is turned to drive the screw to rotate in or out toward the magnetic plate, and the resistance is adjusted by adjusting the distance between the magnetic plate and the flywheel. When braking, the knob is pressed down to drive the screw to push the magnetic plate toward the flywheel, so that the brake pads contact the flywheel and brake. During the braking process, the shield can withstand the pressure of the knob through the support surface of the support platform and disperse the pressure to the support beam through the main body, thereby reducing or even avoiding the guide tube from bearing the pressure of the knob. It can be seen that the spinning bike of the present invention can reduce the force exerted by the knob on the guide tube when pressed, reduce the requirements for the connection strength of the guide tube, and help reduce the difficulty and process requirements of the guide tube welding, improve the reliability of the braking operation, and the stability of the product structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 2 is a three-dimensional diagram of a spinning bike in an embodiment.

[0025] Figure 2 2 is a cross-sectional view of the center plane of the spinning bike in the embodiment.

[0026] Figure 3 2 is a cross-sectional view of the speed regulating device in the embodiment.

[0027] Reference numerals:

[0028] Frame 1, support beam 11, column 12, through hole 100;

[0029] Flywheel 2;

[0030] Speed ​​regulating device 3, magnetic plate 31, brake pad 32, elastic member 33, guide tube 34, nut 35, screw 36, knob 37, strong magnet 38;

[0031] The shield 4 , the main body 41 , the support platform 42 , the support surface 43 , the sleeve hole 44 , and the rib plate 45 . DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0033] When the knob of an existing exercise bike is pressed down, the guide tube below is used to bear pressure and limit the position. The guide tube is usually fixed to the frame by welding, which places high requirements on the welding strength of the guide tube. If the guide tube is not strong enough, the guide tube may easily become loose due to repeated pressure.

[0034] In order to solve the above technical problems, this embodiment provides a dynamic bicycle, please refer to Figures 1 to 3 As shown, Figure 1 is a three-dimensional diagram of a spinning bike in the embodiment, Figure 2 This is a cross-sectional view of the center plane of the spinning bike in the embodiment. Figure 3 2 is a cross-sectional view of the speed regulating device in the embodiment.

[0035] The spinning bike of this embodiment includes a frame 1 , a flywheel 2 , a speed regulating device 3 and a protective cover 4 .

[0036] The frame 1 includes a support beam 11 . The frame 1 serves as a mounting carrier for carrying a user, and the support beam 11 is used for mounting the speed regulating device 3 .

[0037] The flywheel 2 is rotatably connected to the frame 1. The specific connection method is the existing technology, such as connecting to the frame 1 through a rotating shaft, which will not be repeated here.

[0038] The speed regulating device 3 includes a magnetic plate 31, a brake pad 32, an elastic member 33, a guide tube 34, a nut 35, a screw 36 and a knob 37. The magnetic plate 31 is located on one side of the flywheel 2, and one end is hinged to the support beam 11 and the other end is connected to the elastic member 33. The magnetic plate 31 has magnetism, such as a strong magnet 38 is installed. The elastic member 33 is provided on the frame 1, and is used to drive the magnetic plate 31 to deflect in the direction away from the flywheel 2. The brake pad 32 is fixedly connected to the side of the magnetic plate 31 close to the flywheel 2. The guide tube 34 is fixedly connected to the support beam 11 and extends axially toward the magnetic plate 31. The nut 35 is circumferentially fixed to the inner side of the guide tube 34 and can move relative to the axial direction of the guide tube 34. The screw 36 is movably arranged inside the guide tube 34 and is threadedly connected to the nut 35. One end of the screw 36 is used to push the magnetic plate 31 to move toward the flywheel 2, and the other end is connected to the knob 37. The knob 37 is used to rotate or press the screw 36.

[0039] The shield 4 includes a main body 41 and a support platform 42 connected to the top of the main body 41. The main body 41 is fixedly connected to the support beam 11. A support surface 43 is provided on the top of the support platform 42. The support surface 43 is fixedly arranged between the knob 37 and the guide rod.

[0040] When the spinning bike of the above technical solution is in operation, the speed regulating device 3 generates resistance to the flywheel 2 through the magnetic plate 31. To adjust the resistance, the knob 37 is rotated, driving the screw 36 to rotate in or out toward the magnetic plate 31. The resistance is adjusted by adjusting the distance between the magnetic plate 31 and the flywheel 2. When braking, the knob 37 is pressed downward, driving the screw 36 to push the magnetic plate 31 toward the flywheel 2, causing the brake pad 32 to contact the flywheel 2, thereby achieving braking. During the braking process, the shield 4 can withstand the pressure of the knob 37 through the support surface 43 of the support platform 42, and disperse the pressure to the support beam 11 through the main body 41, thereby reducing or even preventing the guide tube 34 from being subjected to the pressure of the knob 37. It can be seen that the spinning bike of the above technical solution can reduce the force exerted by the knob 37 on the guide tube 34 when pressed, and reduce the requirements for the connection strength of the guide tube 34, which is conducive to reducing the difficulty and process requirements of welding the guide tube 34, improving the reliability of the braking operation, and the stability of the product structure.

[0041] In order to make the support surface 43 bear the pressure of the knob 37 more uniform, refer to Figure 3 As shown, the support platform 42 is provided with a sleeve hole 44 that passes through the middle of the support surface 43, and is sleeved on the outer periphery of the screw 36 and the guide tube 34 through the sleeve hole 44. In this way, the knob 37 can disperse the pressure to the area of ​​the support surface 43 outside the sleeve hole 44.

[0042] Furthermore, in order to improve the structural strength of the support surface 43, see Figure 3 As shown, the support platform 42 is provided with a plurality of spaced ribs 45 on the inner side of the sleeve hole 44. The ribs 45 are in contact with the support surface 43 and can evenly distribute the pressure on the support surface 43 to other areas of the support platform 42. The ribs 45 are also in contact with the guide tube 34 and are used to limit the movement of the guide tube 34 in the radial direction.

[0043] In order to improve the stability of the support platform 42 and facilitate the transfer of the force to the main body 41, see Figure 3 As shown, the cross-sectional size of the support platform 42 gradually increases from top to bottom.

[0044] Exemplarily, the support platform 42 is a frustum structure.

[0045] In one embodiment of the fixed connection between the main body 41 and the support beam 11, see Figure 1 As shown, the cross-section of the main body 41 is U-shaped and is clamped downward on the top of the support beam 11. The main body 41 extends along the length of the support beam 11 and is fixed to the side of the support beam 11 by screws. With this arrangement, the main body 41 can be better supported on the support beam 11 and fit more closely, thereby improving the firmness of the connection.

[0046] For example, see Figure 1As shown, the side surface of the main body 41 and the side surface of the support beam 11 are fixedly connected by screws.

[0047] In order to further improve the stability of the connection of the shield 4 and its ability to support the knob 37, see Figure 2 As shown, the frame 1 wraps around the column 12, and the column 12 is connected to the support beam 11 to form an acute angle structure with the pointed corner facing upward; the shield 4 is arranged between the column 12 and the support beam 11, and the inner side is in contact with the outer side of the column 12 and the support beam 11, and the shield 4 is fixedly connected to the column 12.

[0048] In one embodiment of the above-mentioned fixed connection between the guide tube 34 and the support beam 11, see Figure 3 As shown, the support beam 11 is provided with a through hole 100 penetrating downward, and the guide tube 34 is fixed to the inner side of the through hole 100 by welding, clamping or the like.

[0049] The nut 35 is fixed to the inner side of the guide tube 34 in the circumferential direction and can move relative to the guide tube 34 in the axial direction. Figure 3 As shown, the lower end of the guide tube 34 is sleeved with a square tube 39 of a larger inner diameter. The square tube 39 is fixed to the inside of the through hole 100 of the support beam 11. The nut 35 is clamped to the inside of the square tube 39 by its outer contour, preventing it from rotating circumferentially. However, it can move in the length direction of the square tube 39. At the same time, the upper end is limited by the guide tube 34 and cannot move upward. When the screw rod 36 is rotated by the knob 37, the screw rod 36 can move up and down, thereby adjusting the distance between the magnetic plate 31 and the flywheel 2. When the screw rod 36 is pressed by the knob 37, the screw rod 36 can move downward quickly, pushing the brake pad 32 into contact with the flywheel 2, thereby achieving braking.

[0050] For example, see Figure 3 As shown, a set is fixed at the bottom of the screw rod 36, and the nut 35 is axially limited between the set and the lower end of the guide tube 34. The set can be a round head nut.

[0051] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A spinning bike, characterized in that: include: The vehicle frame includes a support beam; a flywheel rotatably connected to the frame; The speed regulating device comprises a magnetic plate, a brake pad, an elastic member, a guide tube, a nut, a screw and a knob, wherein the magnetic plate is located on one side of the flywheel, and one end is hinged to the support beam, and the other end is connected to the elastic member, and the elastic member is provided on the vehicle frame, and is used to drive the magnetic plate to deflect in the direction away from the flywheel, and the brake pad is fixedly connected to the side of the magnetic plate close to the flywheel, the guide tube is fixedly connected to the support beam and extends axially toward the magnetic plate, the nut is circumferentially fixed to the inner side of the guide tube and can move relatively axially along the guide tube, the screw is movably provided inside the guide tube and is threadedly connected to the nut, one end of the screw is used to push the magnetic plate to move toward the flywheel, and the other end is connected to the knob, and the knob is used to rotate or press the screw; The shield includes a main body and a support platform connected to the top of the main body, the main body is fixedly connected to the support beam, and a support surface is provided on the top of the support platform, and the support surface is fixedly arranged between the knob and the guide rod.

2. The spinning bike according to claim 1, wherein: The support platform is provided with a sleeve hole which passes through the middle of the support surface, and is sleeved on the outer periphery of the screw rod and the guide tube through the sleeve hole.

3. The spinning bike according to claim 2, wherein: The support platform is provided with a rib plate on the inner side of the sleeve hole. The rib plate contacts the guide tube and the support surface and is used to limit the movement of the guide tube in the radial direction.

4. The spinning bike according to claim 1, wherein: The cross-section of the support platform gradually increases from top to bottom.

5. The spinning bike according to claim 1, wherein: The cross section of the main body is U-shaped and is clamped downwardly on the top of the support beam. The main body extends along the length direction of the support beam and is fixed to the side of the support beam by screws.

6. The spinning bike according to claim 1, wherein: The frame includes a column, which is connected to a support beam to form an acute angle structure with the pointed corner facing upward; the shield is arranged between the column and the support beam, and the inner side is in contact with the outer part of the column and the support beam, and the shield is fixedly connected to the column.

7. The spinning bike according to claim 1, wherein: The support beam is provided with a through hole penetrating downward, and the guide tube is fixed on the inner side of the through hole.

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