CN210521640U

CN210521640U - Transmission mechanism and rowing machine

Info

Publication number: CN210521640U
Application number: CN201921016420.3U
Authority: CN
Inventors: 田万桂; 谢剑; 李思
Original assignee: Shanghai Xiaomo Network Technology Co ltd
Current assignee: Shanghai Xiaomo Network Technology Co ltd
Priority date: 2019-07-02
Filing date: 2019-07-02
Publication date: 2020-05-15
Anticipated expiration: 2029-07-02

Abstract

The utility model discloses a drive mechanism for rowing machine, include: a rotating shaft; the pull belt wheel assembly comprises a pull belt wheel, a guide wheel and a pull belt, the pull belt wheel is sleeved on the rotating shaft, and the pull belt is wound on the pull belt wheel and connected with a handle of the rowing machine by bypassing the guide wheel; and the volute spring box is arranged on one side of the belt pulley and is suitable for driving the belt pulley to convolute and reset. Furthermore, the utility model also discloses a rowing machine of including above-mentioned drive mechanism. The utility model discloses a drive mechanism, overall structure is compact, and assembly efficiency is high, and is convenient for install and maintain.

Description

Transmission mechanism and rowing machine

Technical Field

The utility model relates to a rowing machine technical field especially relates to a drive mechanism.

Background

A drive mechanism for rowing machine among the prior art, the stay cord wheel generally adopts and realizes circling round with stretch cord subassembly matched with structure and resets, and the stretch cord needs to install multiunit stretching strap guide pulley in the position of difference as the power source that resets, and the stretch cord winding not only can occupy great space on a plurality of stretching strap guide pulleys, and this kind of stretch cord subassembly installation is also very complicated moreover, leads to the holistic assembly efficiency of drive mechanism to be low. In addition, the elastic rope is easy to age in the using process, the rebound force is reduced quickly, the service life is short, and the elastic rope needs to be replaced frequently.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a transmission mechanism to solve the problem that exists above.

According to an aspect of the utility model, a drive mechanism is provided for rowing machine, include: a rotating shaft; the pull belt wheel assembly comprises a pull belt wheel, a guide wheel and a pull belt, the pull belt wheel is sleeved on the rotating shaft, and the pull belt is wound on the pull belt wheel and connected with a handle of the rowing machine by bypassing the guide wheel; and the volute spring box is arranged on one side of the belt pulley and is suitable for driving the belt pulley to convolute and reset.

Optionally, in the transmission mechanism according to the present invention, further comprising: the belt pulley assembly comprises a belt pulley which is coaxially sleeved on the rotating shaft, and a magnet is arranged on the belt pulley so as to collect a rotating speed signal of the belt pulley through a magnetic sensor.

Optionally, in the transmission mechanism according to the present invention, the strap wheel includes a first cylinder and a second cylinder coaxially disposed, wherein the second cylinder is fixedly sleeved on the outer side of the first cylinder, and the first cylinder is sleeved on the rotating shaft; the volute spring box is sleeved on the second cylinder.

Optionally, in the transmission mechanism according to the present invention, the first cylinder is connected to the rotating shaft through two one-way bearings.

Optionally, in the transmission according to the present invention, the belt pulley is a plate wheel, and the diameter of the belt pulley is greater than the strap wheel.

Optionally, in the transmission according to the present invention, the pulley includes: a belt mating surface adapted to wrap a belt; and the baffle, by the outer peripheral edges of belt fitting surface extend along the direction of keeping away from the axle center and form, just evenly install a plurality of along circumference on the baffle magnet.

Optionally, in the transmission according to the utility model discloses an in, transmission still includes two mounting panels, the both ends of pivot are installed respectively on two mounting panels.

Optionally, in the transmission mechanism according to the present invention, the mounting plate is provided with a mounting hole; the end part of the rotating shaft is rotatably connected with the mounting hole through a mounting bearing; the mounting bearing is fixedly connected with the mounting plate through a clamp spring.

Optionally, in the transmission according to the utility model discloses an in the magnetic sensor is the tongue tube, its edge the axial of pivot is fixed in the mounting panel that is close to belt pulley one end, so that the belt pulley drives magnet rotates to just to or stagger with the tongue tube.

According to another aspect of the present invention, there is provided a rowing machine, including: a transmission mechanism as described above.

According to the technical scheme of the utility model, a drive mechanism is provided, adopts the drawing of drawstring wheel subassembly and the volute spring box cooperatees, realizes the returning of drawing of drawstring wheel and resets. The vortex spring box is convenient for install, and the space that just occupies is less, thereby makes the utility model discloses a drive mechanism overall structure is compact, and assembly efficiency is high. Furthermore, the utility model discloses an arrange magnet along circumference on the belt pulley to gather the rotational speed signal of belt pulley through tongue tube induction magnetic field, not only the consumption is little, and is convenient for install and maintain.

The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented according to the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more obvious and understandable, the following detailed description of the present invention is given.

Drawings

To the accomplishment of the foregoing and related ends, certain illustrative aspects are described herein in connection with the following description and the annexed drawings, which are indicative of various ways in which the principles disclosed herein may be practiced, and all aspects and equivalents thereof are intended to be within the scope of the claimed subject matter. The above and other objects, features and advantages of the present disclosure will become more apparent from the following detailed description read in conjunction with the accompanying drawings. In reference to the present disclosure, like reference numerals generally refer to like parts or elements.

Fig. 1 shows a schematic structural view of a transmission mechanism 100 according to an embodiment of the present invention;

fig. 2 shows an exploded schematic view of the transmission mechanism 100 according to an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

As mentioned above, the transmission mechanism for the rowing machine in the prior art has a certain functional defect more or less during the use, so the present invention provides a transmission mechanism 100 for a rowing machine with more optimized performance, such as a magnetic resistance rowing machine, a water resistance rowing machine, or a wind resistance rowing machine, but the present invention is not limited thereto. Fig. 1 and 2 respectively show a schematic structural diagram and an exploded schematic structural diagram of a transmission mechanism 100 according to an embodiment of the present invention.

As shown in fig. 1 and 2, the transmission mechanism 100 includes a rotating shaft 150, and a pulley assembly 110, a pulley assembly 120, and a volute spring case 130, which are sequentially arranged along an axial direction of the rotating shaft 150. Specifically, the pulley assembly 110 includes a pulley 115, the pulley 115 is disposed coaxially with the rotating shaft 150 and is sleeved on the rotating shaft 150, and the pulley 115 is adapted to wind a belt thereon. The drawstring wheel assembly 120 includes a drawstring wheel 125, a guide wheel 123 and a drawstring 121, wherein the drawstring wheel 125 is also coaxially disposed with the rotating shaft 150 and sleeved on the rotating shaft 150, and the drawstring wheel 125 is located at one side of the belt pulley 115. It can be understood that the pulley 115 and the pulley 125 are sequentially sleeved on the rotating shaft 150 along the axial direction of the rotating shaft 150, and the axes of the pulley 115, the pulley 125 and the rotating shaft 150 are located on the same straight line. In addition, a guide wheel 123 is disposed at a certain distance above the pulling-on roller 125, and the pulling tape 121 is wound around the pulling-on roller 125 and passes around the guide wheel 123, where one end of the pulling tape 121 is fixed to the pulling-on roller 125, and after being wound around the pulling-on roller 125, the other end passes around the guide wheel 123 and is connected to the handle of the rowing machine.

According to one embodiment, as shown in fig. 2, the strap wheel 125 includes a first cylinder 126 and a second cylinder 127 coaxially disposed, the second cylinder 127 is fixedly disposed on an outer side of the first cylinder 126, and the first cylinder 126 is disposed on the rotating shaft 150. Specifically, the first cylinder 126 is connected to the rotating shaft 150 through two one-way bearings 128, so that the first cylinder 126 can rotate in one direction relative to the rotating shaft 150. Thus, when the handle of the rowing machine is pulled, the pulling belt 121 can be pulled to release, the pulling belt wheel 125 is driven to rotate by the pulling belt 121, the pulling belt wheel 125 drives the rotating shaft 150 to synchronously rotate, and the rotating shaft 150 can drive the belt pulley 115 installed on the rotating shaft 150 to rotate. Pulley 115 may rotate a pulley of the resistance source via a belt to provide the resistance needed for movement to pull out pull strap 121. Here, the belt pulley of the resistance source is, for example, a magnetic control wheel belt pulley, a water resistance box paddle shaft belt pulley, a resistance fan belt pulley, etc., and corresponds to a magnetic resistance rowing machine, a water resistance rowing machine, or a wind resistance rowing machine, respectively, but the present invention is not limited thereto.

Further, as shown in fig. 1 and 2, the transmission mechanism 100 further includes two oppositely disposed mounting plates 170, and two ends of the rotating shaft 150 are respectively mounted on the mounting plates 170. The guide wheel 123 is fixedly connected with the two mounting plates 170 through a screw at the center thereof, and is clamped between the two mounting plates 170.

The scroll box 130 is disposed on the side of the pulley 125 remote from the pulley 115 in the axial direction of the rotating shaft 150, and is disposed coaxially with the rotating shaft 150. Specifically, the volute spring box 130 is sleeved on the second cylinder 127 of the pulley 125 and is used for driving the pulley 125 to rotate and return. Thus, when the handle of the rowing machine is released and no force is applied thereto, the elastic restoring force of the volute spiral spring case 130 drives the pulley 125 to rotate reversely, so that the strap 121 is wound on the pulley 125 again.

As shown in fig. 2, the mounting plate 170 is provided with a mounting hole 175, and an end of the rotating shaft 150 is rotatably connected to the mounting hole 175 through a mounting bearing 151. Here, the mounting bearing 151 is provided with a snap spring groove adapted to mount a snap spring, and when the mounting bearing 151 is mounted in the mounting hole 175, the snap spring 152 is mounted in the snap spring groove, and the snap spring 152 is fixedly connected with the mounting plate 170 by a screw, so that the mounting bearing 151 is fixedly connected with the mounting plate 170 by the snap spring 152 and the screw, and is fixed in the mounting hole 175. It should be noted that the mounting bearing 151 is fixedly mounted in the mounting hole 175 of the mounting plate 170 by the clamp spring 152, which is advantageous for reducing the overall size and weight of the transmission mechanism 100 compared to the prior art in which a thick and heavy bearing seat is used.

According to one embodiment, a plurality of magnets 116 are circumferentially disposed on pulley 115. Specifically, the pulley 115 includes a belt engagement surface 111 adapted to be wound around a belt, and a baffle plate 112 integrally formed with the belt engagement surface 111, the baffle plate 112 being formed by extending an outer peripheral edge of the belt engagement surface 111 in a direction away from an axial center of the pulley 115. Wherein, a plurality of magnets 116 are installed on the baffle 112 at even intervals along the circumferential direction. By arranging the magnet 116 on the pulley 115, the rotation speed signal of the pulley 115 can be acquired by arranging a corresponding magnetic sensor. It should be noted that the present invention is not limited to the specific number of the magnets 116, and may be 1 or more. In the present embodiment, there are 6 magnets 116 in total.

According to one embodiment, the magnetic sensor employs a reed switch 160, and the reed switch 160 is fixed to a mounting plate 170 near one end of the pulley 115 along the axial direction of the rotating shaft 150, so that the pulley 115 rotates the magnet 116 to be aligned with or offset from one end of the reed switch 160. It should be noted that, because the plurality of magnets 116 are circumferentially installed on the baffle 112 of the pulley 115, and the plurality of magnets 116 are uniformly distributed at intervals, when the pulley 115 rotates, the plurality of magnets 116 sequentially rotate to face an end of the reed pipe 160. It should be appreciated that because the two reeds within the reed tube 160 have different polarities, each time one magnet 116 is rotated into alignment with an end of the reed tube 160, a stronger magnetic field is created relative to the reeds, which causes the contact points of the two reeds to attract each other and close. When the pulley 115 rotates until all the magnets 116 are staggered with the reed switch 160, that is, when the position of the reed switch 160 is opposite to the adjacent two magnets 116, the magnetic field of the magnets 116 is weaker than that of the reeds, so that the contact positions of the two reeds are opened by the elastic force of the reeds. Like this, through coupling tongue tube 160 with the controller of rowing machine, just can respond to the signal that the contact of tongue tube 160 was closed or opened, under the circumstances that magnet 116 quantity was confirmed, the time interval that the contact of tongue tube 160 was closed or opened correlated with the rotational speed of belt pulley 115, like this, the utility model discloses alright gather the rotational speed signal of belt pulley through tongue tube 160.

Further, tongue tube 160 accessible fixed bolster 165 fixed mounting is on mounting panel 170, and the structure and the position of fixed bolster 165 as long as enable tongue tube 160 be suitable for closely just can with magnet 116, the utility model discloses do not restrict the concrete structure of fixed bolster 165. In addition, the fixing bracket 165 may be fixedly coupled to the mounting plate 170 by a screw.

In addition, it should be noted that the pulley 125 in the present invention is a large-diameter disk wheel, and the diameter of the pulley 125 is larger than the diameter of the pulley 115. This can increase the wrap angle of the belt mounted on the pulley 125 and increase the contact circumference of the belt with the pulley 125, thereby contributing to an increase in the frictional force between the belt and the pulley 125 with the same mounting tension of the belt. Therefore, the belt matching surface 111 on the belt pulley 125 matched with the belt only needs to be an arc surface, and does not need to process the V-shaped groove structure of the traditional belt pulley, so that the assembly precision requirement among all parts of the belt pulley assembly 110 can be more easily met, and the assembly and debugging efficiency of the belt pulley assembly 110 can be improved.

In the description of the present specification, the terms "connected", "fixed", and the like are to be construed broadly unless otherwise explicitly specified or limited. Furthermore, the terms "upper", "lower", "inner", "outer", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or unit must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Claims

1. A transmission mechanism for a rowing machine, comprising:

a rotating shaft;

the pull belt wheel assembly comprises a pull belt wheel, a guide wheel and a pull belt, the pull belt wheel is sleeved on the rotating shaft, and the pull belt is wound on the pull belt wheel and connected with a handle of the rowing machine by bypassing the guide wheel; and

and the scroll spring box is arranged on one side of the belt pulley and is suitable for driving the belt pulley to convolute and reset.

2. The transmission mechanism as recited in claim 1, further comprising:

the belt pulley assembly comprises a belt pulley which is coaxially sleeved on the rotating shaft, and a magnet is arranged on the belt pulley so as to collect a rotating speed signal of the belt pulley through a magnetic sensor.

3. The transmission mechanism of claim 1, wherein:

the belt pulling wheel comprises a first cylinder and a second cylinder which are coaxially arranged, wherein the second cylinder is fixedly sleeved on the outer side of the first cylinder, and the first cylinder is sleeved on the rotating shaft;

the volute spring box is sleeved on the second cylinder.

4. The transmission mechanism of claim 3, wherein:

the first cylinder is connected with the rotating shaft through two one-way bearings.

5. The transmission mechanism of claim 2, wherein:

the belt pulley is a disk wheel, and the diameter of the belt pulley is larger than that of the belt pulling wheel.

6. The transmission mechanism as recited in claim 2, wherein the pulley comprises:

a belt mating surface adapted to wrap a belt; and

the baffle, by the outer peripheral edges of belt fitting surface extend along the direction of keeping away from the axle center and form, just evenly install a plurality of along circumference on the baffle magnet.

7. The transmission mechanism of claim 2, wherein:

the transmission mechanism also comprises two mounting plates,

the two ends of the rotating shaft are respectively arranged on the two mounting plates.

8. The transmission mechanism of claim 7, wherein:

the mounting plate is provided with a mounting hole;

the end part of the rotating shaft is rotatably connected with the mounting hole through a mounting bearing;

the mounting bearing is fixedly connected with the mounting plate through a clamp spring.

9. The transmission mechanism of claim 7, wherein:

the magnetic sensor is a reed switch and is fixed on the mounting plate close to one end of the belt pulley along the axial direction of the rotating shaft, so that the belt pulley drives the magnet to rotate to be opposite to or staggered with the reed switch.

10. A rowing machine, comprising:

a drive mechanism as claimed in any one of claims 1 to 9.