Rowing machine

Abstract

The utility model provides a rowing machine, and belongs to the technical field of sports equipment. The problems that an existing rowing machine is provided with a water tank, the water tank is large in size, so that the head of the rowing machine is large in occupied area, the overall packaging size of the rowing machine is large, and the transportation transaction is correspondingly increased are solved. The water tanks and the seat are arranged on the machine base, the seat is arranged on the machine base in a sliding mode, the two water tanks are arranged on the left side and the right side of the machine base respectively and located at the tail end of the machine base, a horizontal rotating shaft is arranged in each water tank in a rotating mode, and a plurality of blades are fixedly arranged on each rotating shaft. The machine base is further provided with two pull ropes, and the rotating shafts in the two water tanks can be driven to rotate by pulling the two pull ropes respectively. The rowing machine has the advantages that an original water tank at the front end of the machine base is changed into two water tanks which are installed at the rear end of the machine base, the overall packaging size of the rowing machine is correspondingly reduced, and the transportation transaction is correspondingly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of sports equipment and relates to a rowing machine. Background Art

[0002] A rowing machine is a machine used for training purposes to simulate the sport of rowing on water. Existing rowing machines are generally divided into three categories: water resistance rowing machines, air resistance rowing machines, and magnetic resistance rowing machines. Among them, the biggest feature of the water resistance rowing machine is that it has a water tank. During exercise, it can use the resistance of water and the change of flywheel speed to exercise muscles in a short time, providing the best simulation of the rowing experience with less noise, and is widely used.

[0003] The Chinese utility model patent with the publication number CN209405576U discloses a folding liquid resistance rowing machine for fitness, which includes a water tank 12. A rotating shaft 7 is arranged in the water tank. A runner 4 is fixedly connected to the rotating shaft 7. A guide pulley 3 is arranged on one side of the runner 4. A guide rope pulley 5 is arranged on one side of the lower part of the guide pulley 3. A transmission belt 2 bypasses the guide pulley 3 and is connected to the runner 4.

[0004] As can be seen from the attached Figure 2 of this patent, the axial direction of the runner 4 and the rotating shaft 7 is the vertical direction, and the axial direction of the guide pulley 3 and the guide rope pulley 5 is the horizontal direction. The transmission belt 2 needs to be twisted by 90 degrees during the process of winding from the runner 4 to the guide pulley 3. During use, the transmission belt 2 is repeatedly stretched back and forth and rubbed against each wheel, and undergoes frequent torsional friction movement, so the transmission belt 2 is easily worn or even broken.

[0005] Currently, the existing water resistance rowing machines on the market also have the following disadvantages: These rowing machines all have one water tank, and the water tank has a large volume. Therefore, the head area occupied by the rowing machine is large, and the overall packaging volume of the rowing machine is large, resulting in a corresponding increase in transportation costs. Moreover, the distance between the pull rope installed at the head of the rowing machine and the water tank is very short, and the pull rope is always in a wound state. When in use, the part of the pull rope that is pulled out needs to frequently switch back and forth between the wound and unwound states, and the force on the pulled-out part of the pull rope is unstable. Summary of the Utility Model

[0006] The purpose of the present utility model is to address the above-mentioned problems existing in the existing water resistance rowing machines, and propose a rowing machine with uniform force on the pull rope without torsion and a reasonable overall layout of the water tank.

[0007] The purpose of the present utility model can be achieved by the following technical solutions:

[0008] A rowing machine, comprising a machine base, a water tank and a seat arranged on the machine base. The seat is slidably arranged on the machine base. It is characterized in that there are two water tanks, which are respectively arranged on the left and right sides of the machine base and at the tail end of the machine base. A horizontal rotating shaft is rotatably arranged in the water tank, and a plurality of blades are fixedly arranged on the rotating shaft. Two pull ropes are also arranged on the machine base. Pulling the two pull ropes can respectively drive the rotating shafts in the two water tanks to rotate;

[0009] Two transmission wheel sets are arranged on the machine base. The transmission wheel set includes a transmission wheel and a driving wheel. A plurality of transmission wheels are rotatably arranged on the machine base. The driving wheel is rotatably arranged at the rear end of the machine base and is coaxially arranged with the rotating shaft. The axes of each transmission wheel are parallel to the axes of the driving wheel and the rotating shaft. One end of the rotating shaft extends out of the water tank and is rotatably arranged on the driving wheel;

[0010] One end of the pull rope is sequentially wound around each transmission wheel and the driving wheel and then fixedly connected to the driving wheel. Pulling the other end of the pull rope backward drives the driving wheel to rotate forward. Two reset mechanisms are also arranged on the machine base to drive the driving wheel to reverse and reset. The rotating shaft is rotatably arranged on the driving wheel through a one-way bearing. When the driving wheel rotates reversely, the rotating shaft remains stationary.

[0011] In the above rowing machine, the reset mechanism includes a reset wheel and an elastic rope. The reset wheel is coaxially and fixedly connected to the driving wheel. A plurality of pulleys are rotatably arranged at the rear end of the machine base. One end of the elastic rope is fixedly arranged on the machine base, and the other end is sequentially wound around each pulley and the reset wheel and then fixedly connected to the reset wheel. The driving wheel drives the reset wheel to rotate forward to stretch the elastic rope. When the elastic rope contracts, it drives the reset wheel and the driving wheel to reverse and reset.

[0012] In the above rowing machine, a through hole is opened on one side of the water tank facing the driving wheel, and one end of the rotating shaft extends out of the through hole and is connected to the driving wheel.

[0013] In the above rowing machine, two bearing seats are fixedly arranged on the machine base, and two rotating shafts are respectively rotatably arranged on the two bearing seats.

[0014] In the above rowing machine, the bearing seat is fixedly arranged on the machine base through a bracket.

[0015] In the above rowing machine, a sleeve is fixedly arranged on one side surface of the water tank facing the driving wheel. The sleeve is coaxially arranged with the rotating shaft. A mechanical seal is installed in the sleeve. The mechanical seal is sleeved on the outer periphery of the rotating shaft to form a circumferential seal between the rotating shaft and the through hole.

[0016] In the above rowing machine, the driving wheel and the reset wheel are integrally formed. A first groove is opened on the driving wheel, and a second groove is opened on the reset wheel. The pull rope is embedded in the first groove, and the elastic rope is embedded in the second groove.

[0017] In the above rowing machine, the machine base includes a main cross beam, front legs, rear legs, and a front support tube. The front legs and rear legs are respectively arranged at the front and rear ends on the sides of the main cross beam. The bottom surfaces of the front legs and rear legs are flush and serve as the placement plane of the rowing machine. The front support tube is fixedly arranged obliquely upward at the front end of the main cross beam.

[0018] In the above rowing machine, the seat is slidably arranged on the main cross beam.

[0019] In the above rowing machine, there are a total of three groups of transmission wheels. One group is arranged at the outer end of the front support tube, one group is arranged on the front legs, and another group is arranged on the rear legs.

[0020] In the above rowing machine, a hood is further arranged on the machine base. The hood is located at the connection point of the main cross beam, front legs, and front support tube. Installation holes one, two, and three are opened on the hood. The main cross beam, front legs, and front support tube are respectively inserted into installation holes one, two, and three of the hood and are fixedly connected.

[0021] In the above rowing machine, a cup holder is arranged on the hood. An avoidance hole corresponding to the position of the cup holder is opened on the front support tube. The cup holder extends downward into the avoidance hole.

[0022] In the above rowing machine, two foot pads are further arranged at the front end of the machine base.

[0023] Compared with the prior art, the present utility model has the following beneficial effects:

[0024] 1. One water tank originally at the front end of the machine base is changed to two water tanks and installed at the rear end of the machine base, and the overall packaging volume of the rowing machine is correspondingly reduced, and the transportation cost is also correspondingly reduced;

[0025] 2. The axis of the rotating shaft in the present utility model is parallel to the axes of each transmission wheel and the driving wheel, the winding direction of the pull rope is consistent without torsion, the force is more uniform, and the wear of the pull rope is reduced;

[0026] 3. After the pull rope of the present utility model is wound around several transmission wheels, this part of the pull rope is always in a force-straightened state. When the pull rope is pulled backward, the pulled-out part is always in a force-straightened state, and the pulled-out pull rope is more stable in force. Description of the Drawings

[0027] Figure 1 is the overall structural schematic diagram of the rowing machine of the present utility model;

[0028] Figure 2 is the winding schematic diagram of the pull rope of the present utility model;

[0029] Figure 3 is the schematic diagram of the rotating shaft, driving wheel, and reset mechanism of the present utility model;

[0030] Figure 4 is a cross-sectional view of the rotating shaft, driving wheel and reset mechanism of the present utility model;

[0031] Figure 5 is an enlarged cross-sectional view of the rotating shaft, driving wheel and reset mechanism of the present utility model

[0032] In the figure, 1 is the machine base; 2 is the water tank; 3 is the seat; 4 is the rotating shaft; 5 is the blade; 6 is the pull rope; 7 is the transmission wheel; 8 is the driving wheel; 9 is the one-way bearing; 10 is the reset wheel; 11 is the elastic rope; 12 is the pulley; 13 is the bearing seat; 14 is the bracket; 15 is the sleeve; 16 is the mechanical seal ring; 17 is the first clamping groove; 18 is the second clamping groove; 19 is the main cross beam; 20 is the front leg; 21 is the rear leg; 22 is the front support pipe; 23 is the head cover; 24 is the cup holder; 25 is the foot pad. Detailed implementation manners

[0033] The following are specific embodiments of the present utility model and in combination with the attached drawings, the technical solutions of the present utility model are further described, but the present utility model is not limited to these embodiments.

[0034] As Figure 1 shown, a rowing machine according to the present utility model includes a machine base 1 and a water tank 2 and a seat 3 provided on the machine base 1. The seat 3 is slidably provided on the machine base 1. It is characterized in that there are two water tanks 2, and the two water tanks 2 are respectively arranged on the left and right sides of the machine base 1 and at the tail end of the machine base 1. A horizontal rotating shaft 4 is rotatably provided in the water tank 2, and a plurality of blades 5 are fixedly provided on the rotating shaft 4. Two pull ropes 6 are further provided on the machine base 1, and pulling the two pull ropes 6 can respectively drive the rotating shaft 4 in the two water tanks 2 to rotate.

[0035] As Figure 2 shown, two transmission wheel sets are provided on the machine base 1. The transmission wheel sets include transmission wheels 7 and a driving wheel 8. A plurality of transmission wheels 7 are rotatably provided on the machine base 1. The driving wheel 8 is rotatably provided at the rear end of the machine base 1 and is coaxially arranged with the rotating shaft 4. The axes of the respective transmission wheels 7 are parallel to the axes of the driving wheel 8 and the rotating shaft 4. One end of the rotating shaft 4 extends out of the water tank 2 and is rotatably provided on the driving wheel 8; the winding directions of the pull ropes 6 are the same without torsion, the force is more uniform, and the wear of the pull ropes 6 is reduced.

[0036] One end of the pull rope 6 is sequentially wound around the respective transmission wheels 7 and the driving wheel 8 and then fixedly connected to the driving wheel 8. Pulling the other end of the pull rope 6 backward drives the driving wheel 8 to rotate forward. Two reset mechanisms are further provided on the machine base 1 to drive the driving wheel 8 to rotate backward and reset. The rotating shaft 4 is rotatably provided on the driving wheel 8 through a one-way bearing 9. When the driving wheel 8 rotates backward, the rotating shaft 4 remains stationary.

[0037] As Figure 3As shown in the figure, the reset mechanism includes a reset wheel 10 and an elastic cord 11. The reset wheel 10 is fixedly connected coaxially with the driving wheel 8. A plurality of pulleys 12 are rotatably arranged at the rear end of the machine base 1. One end of the elastic cord 11 is fixedly arranged on the machine base 1, and the other end is successively wound around each pulley 12 and the reset wheel 10 and then fixedly connected to the reset wheel 10. The driving wheel 8 drives the reset wheel 10 to rotate forward to stretch the elastic cord 11, and when the elastic cord 11 contracts, it drives the reset wheel 10 and the driving wheel 8 to rotate backward for resetting.

[0038] As Figure 4 shown in the figure, a through hole is opened on one side of the water tank 2 facing the driving wheel 8. One end of the rotating shaft 4 extends out of the through hole and is connected to the driving wheel 8. Two bearing seats 13 are fixedly arranged on the machine base 1, and the two rotating shafts 4 are respectively rotatably arranged on the two bearing seats 13. The bearing seat 13 is fixedly arranged on the machine base 1 through a bracket 14.

[0039] As Figure 5 shown in the figure, a sleeve 15 is fixedly arranged on one side surface of the water tank 2 facing the driving wheel 8. The sleeve 15 is coaxially arranged with the rotating shaft 4. A mechanical seal ring 16 is installed in the sleeve 15. The mechanical seal ring 16 is sleeved on the outer periphery of the rotating shaft 4 to form a circumferential seal between the rotating shaft 4 and the through hole. The driving wheel 8 and the reset wheel 10 are integrally formed. A first groove 17 is opened on the driving wheel 8, and a second groove 18 is opened on the reset wheel 10. The pull rope 6 is embedded in the first groove 17, and the elastic cord 11 is embedded in the second groove 18.

[0040] The machine base 1 includes a main cross beam 19, front legs 20, rear legs 21 and a front support pipe 22. The front legs 20 and the rear legs 21 are respectively arranged at the front and rear ends on the side of the main cross beam 19. The bottom surfaces of the front legs 20 and the rear legs 21 are flush and serve as the placement plane of the rowing machine. The front support pipe 22 is obliquely and upwardly fixedly arranged at the front end of the main cross beam 19. The seat 3 is slidably arranged on the main cross beam 19. There are three groups of transmission wheels 7 in total. One group is arranged at the outer end of the front support pipe 22, one group is arranged on the front legs 20, and another group is arranged on the rear legs 21. Two foot pads 25 are also arranged at the front end of the machine base 1.

[0041] A head cover 23 is also arranged on the machine base 1. The head cover 23 is located at the connection point of the main cross beam 19, the front legs 20 and the front support pipe 22. A first mounting hole, a second mounting hole and a third mounting hole are opened on the head cover 23. The main cross beam 19, the front legs 20 and the front support pipe 22 are respectively inserted into the first mounting hole, the second mounting hole and the third mounting hole of the head cover 23 and are fixedly connected. A cup holder 24 is arranged on the head cover 23. An avoidance hole corresponding to the position of the cup holder 24 is opened on the front support pipe 22. The cup holder 24 extends downward into the avoidance hole. The design of the cup holder 24 facilitates the user to place personal items such as water cups.

[0042] It should be understood that in the claims and the specification of the present utility model, all "including..." should be understood in an open sense, that is, it is equivalent in meaning to "at least containing...", rather than in a closed sense, that is, it should not be understood to mean "only containing...".

[0043] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art to which the present utility model pertains can make various modifications or supplements to the described specific embodiments or use similar means for substitution, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

Claims

1. A rowing machine, comprising a machine base (1), a water tank (2) and a seat (3) arranged on the machine base (1), wherein the seat (3) is slidably arranged on the machine base (1), and is characterized in that, There are two water tanks (2), which are respectively arranged on the left and right sides of the machine base (1) and at the rear end of the machine base (1). A horizontal rotating shaft (4) is rotatably arranged in the water tank (2), and several blades (5) are fixedly arranged on the rotating shaft (4). Two pull ropes (6) are also arranged on the machine base (1). Pulling the two pull ropes (6) can respectively drive the rotating shafts (4) in the two water tanks (2) to rotate; Two transmission wheel sets are arranged on the machine base (1). The transmission wheel set includes a transmission wheel (7) and a driving wheel (8). Several transmission wheels (7) are rotatably arranged on the machine base (1). The driving wheel (8) is rotatably arranged at the rear end of the machine base (1) and is coaxially arranged with the rotating shaft (4). The axes of each transmission wheel (7) are parallel to the axes of the driving wheel (8) and the rotating shaft (4). One end of the rotating shaft (4) extends out of the water tank (2) and is rotatably arranged on the driving wheel (8); One end of the pull rope (6) is successively wound around each transmission wheel (7) and the driving wheel (8) and then fixedly connected to the driving wheel (8). Pulling the other end of the pull rope (6) backward drives the driving wheel (8) to rotate forward. Two reset mechanisms are also arranged on the machine base (1) to drive the driving wheel (8) to reverse and reset. The rotating shaft (4) is rotatably arranged on the driving wheel (8) through a one-way bearing (9). When the driving wheel (8) rotates reversely, the rotating shaft (4) remains stationary.

2. A rowing machine according to claim 1, wherein The reset mechanism includes a reset wheel (10) and an elastic rope (11). The reset wheel (10) is fixedly connected to the driving wheel (8) coaxially. Several pulleys (12) are rotatably arranged at the rear end of the machine base (1). One end of the elastic rope (11) is fixedly arranged on the machine base (1), and the other end is successively wound around each pulley (12) and the reset wheel (10) and then fixedly connected to the reset wheel (10). The driving wheel (8) drives the reset wheel (10) to rotate forward to stretch the elastic rope (11). When the elastic rope (11) contracts, it drives the reset wheel (10) and the driving wheel (8) to reverse and reset.

3. A rowing machine according to claim 1, characterized in that, A through hole is opened on one side of the water tank (2) facing the driving wheel (8). One end of the rotating shaft (4) extends out of the through hole and is connected to the driving wheel (8).

4. A rowing machine according to claim 1, characterized in that, Two bearing seats (13) are fixedly arranged on the machine base (1). The two rotating shafts (4) are respectively rotatably arranged on the two bearing seats (13); the bearing seats (13) are fixedly arranged on the machine base (1) through a bracket (14).

5. A rowing machine according to claim 2, characterized in that, The driving wheel (8) and the reset wheel (10) are integrally formed. A first groove (17) is opened on the driving wheel (8), and a second groove (18) is opened on the reset wheel (10). The pull rope (6) is embedded in the first groove (17), and the elastic rope (11) is embedded in the second groove (18).

6. A rowing machine according to claim 1, characterized in that, The machine base (1) includes a main cross beam (19), front legs (20), rear legs (21) and a front support pipe (22). The front legs (20) and the rear legs (21) are respectively arranged at the front and rear ends on the side of the main cross beam (19). The bottom surfaces of the front legs (20) and the rear legs (21) are flush and serve as the placement plane of the rowing machine. The front support pipe (22) is obliquely and upwardly fixedly arranged at the front end of the main cross beam (19); The seat (3) is slidably arranged on the main cross beam (19).

7. A rowing machine according to claim 6, wherein, There are three groups of the driving wheels (7), one group is arranged at the outer end of the front support pipe (22), one group is arranged on the front leg (20), and the other group is arranged on the rear leg (21).

8. A rowing machine according to claim 6, characterized in that, A hood (23) is further arranged on the machine base (1), and the hood (23) is located at the connection point of the main cross beam (19), the front leg (20) and the front support pipe (22). An installation hole one, an installation hole two and an installation hole three are formed in the hood (23), and the main cross beam (19), the front leg (20) and the front support pipe (22) are respectively inserted into the installation hole one, the installation hole two and the installation hole three of the hood (23) and are fixedly connected to each other.

9. A rowing machine according to claim 8, characterized in that, A cup holder (24) is arranged on the hood (23), and an avoidance hole corresponding to the position of the cup holder (24) is formed in the front support pipe (22), and the cup holder (24) extends downward into the avoidance hole.

10. A rowing machine according to claim 1, characterized in that, Two foot pads (25) are further arranged at the front end of the machine base (1).

Images