CN220918032U - Rowing device - Google Patents

Abstract

The utility model discloses a rowing device, which comprises a frame and a pedal assembly, wherein the frame is provided with a first end and a second end, the pedal structure comprises the pedal assembly, a locking piece, a first elastic piece and an unlocking piece, the pedal assembly is arranged at the first end of the frame in a sliding manner, the second end of the frame is provided with a seat cushion assembly, the locking piece is connected with the pedal assembly, the first end of the frame is provided with a limiting part, and the locking piece is selectively connected with the limiting part so as to limit the pedal assembly to move relative to the frame; the first elastic piece is connected with the locking piece so as to enable the locking piece to move to be connected with the limiting part; the unlocking piece is connected to the locking piece and used for driving the locking piece to be separated from the limiting part. According to the utility model, the first elastic piece is arranged to drive the locking piece to be connected with the limiting part so as to limit the pedal assembly to move, so that the user can train; the unlocking piece can drive the locking piece to be separated from the limiting part, so that unlocking and pedal assembly adjustment can be realized, and the rowing device can be suitable for different users to adjust the extending length of the legs.

Description

Rowing device

Technical Field

The utility model relates to the field of fitness equipment, in particular to a rowing device.

Background

The rowing device is a body building device for simulating rowing movement. The rowing device generally comprises a frame, wherein a resistance source assembly, a handle assembly connected with the resistance source assembly and a pedal are arranged on the frame, one end of the frame is hinged with a horizontal sliding rail, and a sliding stool is arranged on the sliding rail in a sliding manner. In actual use, the bent legs of a person are seated on the slide stool, the handle assembly is pulled by two hands, the two pedals are stepped on the pedal assembly, and the two hands are pulled backwards and simultaneously the two legs are stepped forwards forcefully, so that the slide stool slides backwards, the simulated rowing exercise of the person is realized, and the exercise effect is achieved on the muscles of the whole body of the person.

The prior art has the following defects: in order to stably exert a force on the pedal by the feet of a trainer during training, the conventional rowing device is usually provided with the pedal fixedly arranged on the frame, but for trainers of different heights, the extending lengths of the legs of the trainers during training are different, and the trainers can only adjust the extending lengths of the legs of the trainers by sliding the initial training interval between the sliding stool and the pedal assembly, so that the length of the sliding rail needs to be reserved for adjusting the moving stroke of the extending lengths of the legs of the user and the moving stroke of the seat cushion during training, but the length of the sliding rail is also longer, so that the overall size of the rowing device is large.

Disclosure of utility model

One object of an embodiment of the utility model is to: provided is a rowing device which is small in overall size and can be easily adjusted in initial training positions by different users.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

In a first aspect, a rowing device is provided, including a frame and a pedal structure, the frame has a first end and a second end opposite to each other, the pedal structure includes a pedal assembly, a locking member, a first elastic member, and an unlocking member, the pedal assembly is slidably disposed at the first end of the frame, a seat cushion assembly is slidably disposed at the second end of the frame, the locking member is movably connected to the pedal assembly, a limit portion is disposed at the first end of the frame, and the locking member is selectively connected to the limit portion to limit movement of the pedal assembly relative to the frame; the first elastic piece is connected with the locking piece and drives the locking piece to move to be connected with the limiting part; the unlocking piece is connected to the locking piece and used for driving the locking piece to be separated from the limiting part.

As a preferable scheme of the rowing device, the pedal assembly comprises a sliding support and a pedal arranged on the sliding support, the sliding support is arranged on the frame in a sliding sleeved mode, and the pedal is installed on the frame through the sliding support.

As a preferable mode of the rowing device, the sliding support is provided with a mounting part, and the locking piece is slidably mounted on the mounting part;

The unlocking piece comprises a cam part and a pressing part which are connected, the locking piece is rotationally connected with the cam part, the cam part is in butt joint with the outer wall of the sliding support, the pressing part can drive the cam part to rotate, and the locking piece is driven to move along the direction of separating from the limiting part at the mounting part.

As a preferable scheme of the rowing device, the top of the sliding support is provided with the installation part, the inside of the installation part is provided with a limiting groove extending along the vertical direction, and the locking piece is arranged in the limiting groove;

The installation department is including first section and the second section that is connected, first section is located the sliding support is inboard, the second section is located the sliding support outside, first section deviates from the one end of second section is provided with the notch of spacing groove, locking piece part can pass the notch with the frame is connected, the second section runs through and is provided with the trompil, locking piece part passes the trompil stretches out outside the installation department and with the cam part is connected.

As a preferable scheme of the rowing device, the opening is a first bar-shaped hole, the first bar-shaped hole extending along the vertical direction is formed in the outer side wall of the second section, a connecting portion is arranged on the outer side wall of the locking piece, one end, far away from the locking piece, of the connecting portion penetrates through the first bar-shaped hole and is connected with the cam portion, the cam portion is always abutted to the outer top surface of the sliding support, and the connecting portion can be driven to move through rotation of the cam portion, and the locking piece is driven to move.

As a preferable mode of the rowing device, a portion of the connecting portion located outside the limiting groove is provided with a limiting member, and the cam portion is disposed between the limiting member and an outer side wall of the mounting portion, so as to prevent the cam portion from coming out of the connecting portion.

As a preferable scheme of the rowing device, the first elastic piece is arranged in the limit groove and is propped between the groove wall of the limit groove and the locking piece, so as to drive the locking piece to move out of the limit groove and keep being spliced with the limit part.

As a preferred scheme of the rowing device, the sliding support comprises a support body, the support body is provided with two opposite side plates, the inner side walls of each side plate are respectively provided with a first roller and a second roller along the vertical direction at intervals, and the first roller and the second roller respectively prop against the top surface and the bottom surface of the first end.

As a preferable scheme of the rowing device, the limiting part is a limiting hole, the frame is provided with a plurality of limiting holes at intervals along the moving direction of the pedal assembly, and the locking piece is selectively inserted into one of the limiting holes.

As a preferred solution of the rowing device, the first end is further provided with a second elastic member, the second elastic member is connected with the pedal structure, and the second elastic member drives the pedal structure to move towards the direction close to the second end.

The beneficial effects are that: through setting up locking piece and first elastic component, can make the locking piece remain the cooperation with spacing portion all the time under no exogenic action and be connected to the restriction pedal subassembly removes in the frame, guarantees that user's both feet can step on the pedal subassembly exerting force and train when training. Before training, a user can overcome the elasticity of the first elastic piece through the unlocking piece to drive the locking piece to be separated from the limiting part so as to unlock the pedal assembly, and at the moment, the user can slide and adjust the position of the pedal assembly on the first end according to the height of the user, so that the distance between the pedal assembly and the seat cushion assembly is adjusted, and the extension length of the leg of the user is adjusted; after the adjustment, the first elastic piece can drive the locking piece to be connected with the limiting part again, so that the user can tread on the pedal assembly to exert force when training. Compared with the prior art, the pedal assembly is adjustable in position by utilizing the first end of the frame, so that the length design of the second end of the frame does not need to reserve and adjust the moving stroke of the extending length of the legs of the user, and therefore, the length of the second end of the frame can be reduced under the condition that the length of other structures is increased by the frame, the size of the frame is reduced, and the overall size of the rowing device is reduced.

Drawings

The utility model is described in further detail below with reference to the drawings and examples.

Fig. 1 is a perspective view of a rowing device in accordance with an embodiment of the utility model.

Fig. 2 is a perspective view of a frame according to an embodiment of the present utility model.

Fig. 3 is a perspective view of a pedal structure (except a frame) according to an embodiment of the present utility model.

Fig. 4 is a first cross-sectional view of a pedal structure (except a frame) according to an embodiment of the present utility model.

Fig. 5 is a second cross-sectional view of a pedal structure (except a frame) according to an embodiment of the present utility model.

Fig. 6 is a cross-sectional view of a sliding support according to an embodiment of the present utility model.

Fig. 7 is a cross-sectional view of a portion of a frame according to an embodiment of the utility model.

In the figure:

100. a pedal structure; 200. a seat cushion assembly; 300. a resistance source assembly;

1. A frame; 11. a limit part; 12. a first end; 121. a mounting cavity; 122. a second bar-shaped hole; 13. a second end; 2. a pedal assembly; 21. a sliding support; 211. a support body; 212. a first roller; 213. a second roller; 214. a connecting rod; 22. a pedal; 3. a locking member; 31. a connection part; 4. a first elastic member; 5. an unlocking member; 51. a cam section; 52. a pressing part; 6. a mounting part; 61. a limit groove; 62. a first bar-shaped hole; 7. a limiting piece; 8. and a second elastic member.

Detailed Description

In order to make the technical problems solved by the present utility model, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

The existing rowing device generally comprises a frame, wherein a resistance source component, a handle component connected with the resistance source component and a pedal component are arranged on the frame, one end of the frame is hinged with a horizontal sliding rail, and a sliding stool is arranged on the sliding rail in a sliding manner. At present, pedal subassembly is fixed setting in the frame generally, and the user can only be through the slip bench with the adjustment initial training position, for the adjustment demand of slip bench, and the slide rail length of rowing machine is generally designed very long, moreover, in order to install resistance source subassembly, handle subassembly and pedal subassembly in the frame, also has certain size, therefore rowing device's overall dimension is big, occupation space is big, uses at user's house and makes accomodate inconvenient, reduces user's use experience easily.

To this end, as shown in fig. 1 to 6, the rowing device provided by the present utility model comprises a pedal structure 100, a seat cushion assembly 200 and a resistance source assembly 300, wherein the pedal structure 100 comprises a frame 1 and a pedal assembly 2, the frame 1 is provided with a first end 12 and a second end 13 which are opposite, in this embodiment, the first end 12 is a first support frame, the second end 13 is a second support frame, the first support frame is connected with the second support frame, the pedal assembly 2 is slidably mounted on the first end 12, the seat cushion assembly 200 is slidably mounted on the second end 13, and the resistance source assembly 300 is mounted on the frame 1. During training, a user can sit on the seat cushion assembly 200, hold the handles of the resistance source assembly 300 with both hands, and step on the pedal assembly 2 with both feet to simulate a rowing motion for training.

The pedal structure 100 further comprises a locking piece 3, a first elastic piece 4 and an unlocking piece 5, wherein the locking piece 3 is movably connected to the pedal assembly 2, the first end 12 of the frame 1 is provided with a limiting part 11, and the locking piece 3 is used for being selectively connected with the limiting part 11 so as to limit the pedal assembly 2 to move relative to the frame 1; the first elastic piece 4 is connected to the locking piece 3, and the first elastic piece 4 can drive the locking piece 3 to move to be connected with the limiting part 11; the unlocking piece 5 is connected to the locking piece 3, and the unlocking piece 5 is used for driving the locking piece 3 to be separated from the limiting part 11.

Understandably, through setting up locking piece 3 and first elastic component 4, can make locking piece 3 remain the cooperation with spacing portion 11 all the time under no exogenic action and be connected to restriction pedal subassembly 2 removes on frame 1, guarantees that user's both feet can step on pedal subassembly 2 exert force when training and trains. Before training, the user can overcome the elasticity of the first elastic piece 4 through the unlocking piece 5 to drive the locking piece 3 to separate from the limiting part 11 so as to unlock the pedal assembly 2, and at the moment, the user can slide and adjust the position of the pedal assembly 2 on the first end 12 according to the height of the user, so that the distance between the pedal assembly 2 and the seat cushion assembly 200 is adjusted, and the extension length of the leg of the user is adjusted; after adjustment, the first elastic member 4 can drive the locking member 3 to be connected with the limiting portion 11 again, so that the user can tread on the pedal assembly 2 to exert force during training.

Compared with the prior art, the design utilizes the original first end 12 of the stand 1 to realize the position adjustment of the pedal assembly 2, so that the length design of the second end 13 of the stand 1 does not need to reserve a moving stroke for adjusting the extending length of the legs of the user, therefore, the stand 1 can reduce the length of the second end 13 under the condition of not increasing the length of other structures, thereby reducing the size of the stand 1, further reducing the overall size of the rowing device, reducing the occupied space of the rowing device and being beneficial to improving the user experience; moreover, a user can sit on the rowing device to adjust the pedal assembly 2, the user does not need to lift the body during adjustment, the adjustment is convenient, and the user experience is further improved.

Specifically, the direction of movement of the footrest assembly 2 is the same as or opposite to that of the seat cushion assembly 200 to adjust the spacing between the seat cushion assembly 200 and the footrest assembly 2, thereby adjusting the leg extension length of the user. Wherein the footrest assembly 2 and the seat cushion assembly 200 are both moved in the x-direction.

In this embodiment, as shown in fig. 3 to 7, the pedal assembly 2 includes a sliding support 21 and a pedal 22 disposed on the sliding support 21, the sliding support is slidably sleeved on the first end 12 of the frame 1, and the pedal 22 is mounted on the frame 1 through the sliding support 21, so as to realize sliding adjustment of the position of the pedal assembly 2.

Specifically, the sliding support 21 includes a support body 211 with a "U" shaped structure, where the support body 211 includes a top plate and two side plates disposed on the top plate, the two side plates are disposed opposite to each other along the y direction, and an opening is formed at the bottom of the support body 211 to facilitate the support body 211 to be sleeved on the first end 12; the inside wall of every curb plate all is provided with first gyro wheel 212 and second gyro wheel 213 along z direction interval, and support body 211 slides through first gyro wheel 212 and second gyro wheel 213 and sets up on first end 12, and x direction, y direction and z direction are all perpendicular, and in this embodiment, x direction, y direction are the horizontal direction, and z direction is the vertical direction.

The first end 12 has an elongated square structure with a top surface and a bottom surface, and the first roller 212 and the second roller 213 respectively abut against the top surface and the bottom surface of the square structure. This design can prevent that support body 211 breaks away from first end 12 through first gyro wheel 212 and second gyro wheel 213 support respectively at square structural top surface and bottom surface, can also restrict support body 211 direction of movement simultaneously to prevent pedal subassembly 2 from taking place the skew.

In this embodiment, referring to fig. 2 and fig. 4 to 7, the limiting portion 11 is a limiting hole, a plurality of limiting holes are disposed on the square top surface of the first end 12 along the moving direction of the pedal assembly 2 at intervals, and the locking member 3 is selectively inserted into one of the limiting holes. After adjusting the position of the pedal assembly 2 on the first end 12, the locking member 3 can be inserted into the corresponding limiting hole, thereby limiting the movement of the pedal assembly 2 relative to the frame 1.

In the present embodiment, referring to fig. 3 to 7, the mount portion 6 is provided on the slide mount 21, and the lock member 3 is slidably mounted to the mount portion 6. The unlocking piece 5 comprises a cam part 51 and a stepping part 52 which are connected, the locking piece 3 is rotationally connected with the cam part 51, the cam part 51 is always abutted against the outer wall of the sliding support 21, and the pressing part 52 can drive the cam part 51 to rotate and drive the locking piece 3 to move along the direction of separating from the limiting part 11 at the mounting part 6.

Specifically, the mounting portion 6 is provided at the top of the slide mount 21, a limit groove 61 extending in the z direction is provided inside the mounting portion 6, and the locking piece 3 is provided in the limit groove 61. The limiting groove 61 can limit the moving direction of the locking piece 3 to prevent the locking piece 3 from being deviated.

It will be appreciated that, referring to fig. 4, when the smooth portion of the cam portion 51 abuts against the outer wall of the pedal assembly 2, the locking member 3 can be kept inserted into the limiting hole by the action of the first elastic member 4, and referring to fig. 5, when the pressing portion 52 drives the cam portion 51 to rotate until the smooth portion abuts against the outer top surface of the sliding support 21, the locking member 3 can be lifted up against the elastic force of the first elastic member 4, so that the locking member 3 moves in the z direction in the limiting groove 61 to be separated from the limiting hole (in this embodiment, the locking member 3 moves vertically upward in the limiting groove 61 to be separated from the limiting hole), thereby separating the locking member 3 from the limiting portion 11, and unlocking the pedal assembly 2.

Therefore, the user can sit on the seat cushion assembly 200, one of the feet of the user can tread the tread part 52 to drive the cam part 51 to rotate, the other foot of the user can tread the pedal assembly 2, and after unlocking, the position of the pedal assembly 2 on the frame 1 can be slidingly adjusted according to the height of the user, so that the stretching length of the leg of the user can be adjusted. Through the design, a user can sit on the rowing device to adjust the stretching length of the legs of the user, compared with the prior design which needs to rise up and adjust and needs to rise up and adjust again after the adjustment is not completed in place, in the scheme of the application, the user only needs to sit on the seat cushion assembly 200, and can easily and accurately complete the reasonable adjustment of the position of the pedal assembly 2 through the cooperation of two feet, the process does not need to rise up and adjust, the use habit of the user is more met, the design can convert the stepping rotation unlocking piece 5 into the linear movement of the locking piece 3 to realize unlocking, the unlocking mode is more in line with the habit of the user, and the use of the user is also facilitated.

Specifically, referring to fig. 4 to 7, the mounting portion 6 includes a first section and a second section connected, the first section is located inside the sliding support 21, the second section is located outside the sliding support 21, one end of the first section facing away from the second section is provided with a notch of the limiting groove 61, the notch of the limiting groove 61 faces the square top surface of the first end 12, the locking member 3 can partially pass through the notch to be connected with the frame 1, the second section is provided with an opening in a penetrating manner, and the locking member 3 partially passes through the opening to extend out of the mounting portion 6 and be connected with the cam portion 51.

As an example, as shown in fig. 6, the locking member 3 includes a body and a plug portion disposed at one end of the body, the cross-sectional area of the body is larger than that of the plug portion, and the plug portion can selectively extend to the outside of the limit groove 61 through the notch of the limit groove 61; the lateral wall of body is provided with connecting portion 31, and the trompil is first bar hole 62, and the first bar hole 62 that extends along the z direction has been seted up to the second section lateral wall, and connecting portion 31 is kept away from the one end of locking piece 3 and is passed the trompil and stretch to the installation department 6 outside and be connected with cam portion 51, rotates cam portion 51 and can drive connecting portion 31 and remove at first bar hole 62 and drive locking piece 3 along the z direction. The first bar-shaped hole 62 can restrict the moving stroke of the locking member 3 to prevent the locking member 3 from being separated from the mounting portion 6.

Further, as shown in fig. 3 and 6, the portion of the connecting portion 31 outside the stopper groove 61 is provided with a stopper 7, and the cam portion 51 is provided between the stopper 7 and the outer side wall of the mounting portion 6 to prevent the cam portion 51 from coming out of the connecting portion 31. For example, the limiting member 7 is a limiting nut, the connecting portion 31 is provided with external threads, and the limiting member 7 and the connecting portion 31 are connected through threads, so as to facilitate assembling the pedal structure 100.

The pressing portion 52 is, for example, a foot pedal.

In this embodiment, as shown in fig. 6, the first elastic member 4 is a spring, and the first elastic member 4 is disposed in the limiting groove 61 and abuts between the groove wall of the limiting groove 61 and the end of the body facing away from the plugging portion, so as to drive the plugging portion to move out of the limiting groove 61 and keep plugging with the limiting hole. After the pedal assembly 2 is adjusted to a proper position, the pedal pressing part 52 is loosened, and the locking piece 3 can be automatically inserted into the corresponding limiting hole under the action of the first elastic piece 4, so that the pedal assembly 2 is automatically locked.

Of course, in another embodiment, the first elastic member 4 may be a torsion spring, where the first elastic member 4 is disposed on the cam portion 51, and the first elastic member 4 drives the locking portion to move along the z direction near the limiting hole by the tendency of rotating around the opposite direction of unlocking, and the inserting portion keeps inserted into the limiting hole, so as to have a movement inserted into the limiting portion 11.

In an embodiment, as shown in fig. 7, the first end 12 is further provided with a second elastic member 8, where the second elastic member 8 is connected to the pedal structure 100, and the second elastic member 8 drives the pedal structure 100 to move toward the direction approaching the second end 13. When the user steps on the unlocking piece 5 to slide along the direction of the x direction close to the first end 12 to adjust the position of the pedal assembly 2, after the unlocking piece 5 is adjusted in place, if the inserting part of the locking piece 3 is not opposite to the limiting hole, the pedal structural piece 100 can automatically move for a certain distance along the direction of the x direction close to the second end 13 under the action of the second elastic piece 8 until the locking piece 3 is inserted into the nearest limiting hole under the action of the first elastic piece 4, so that the locking piece 3 can be inserted into the limiting hole all the time to limit the movement of the pedal structural piece 100. Therefore, the convenience of user adjustment is further met.

Specifically, an installation cavity 121 is disposed in the square structure of the first end 12, a second elastic member 8 is disposed in the installation cavity 121, two opposite outer side walls of the square structure of the first end 12 are both provided with a second bar hole 122, the second bar hole 122 is communicated with the installation cavity 121, the sliding support 21 further comprises a connecting rod 214, one end of the connecting rod 214 is connected with the inner side wall of the side plate of one of the sliding supports 21, the other end of the connecting rod 214 passes through the two second bar holes 122 to be connected with the inner side wall of the side plate of the other sliding support 21, and the second elastic member 8 is connected with the part of the connecting rod 214 located in the installation cavity 121 so as to drive the sliding support 21 to move along the x direction and close to the second end 13, thereby realizing that the pedal structure 100 has a trend of moving towards the direction close to the second end 13.

Alternatively, the second elastic member 8 is a gas spring or a compression spring.

Alternatively, the sliding structure of the seat cushion assembly 200 may be the same as that of the sliding support 21, or the sliding structure of the seat cushion assembly 200 may be another sliding structure of a stool of a rowing machine according to the related art, which will not be described herein.

It should be noted that, the resistance source assembly 300 may be a resistance structure of a conventional rowing device, which is not described herein.

Claims (10)

1. The rowing device comprises a frame and a pedal structure, and is characterized in that the frame is provided with a first end and a second end which are opposite, the pedal structure comprises a pedal assembly, a locking piece, a first elastic piece and an unlocking piece, the pedal assembly is arranged at the first end of the frame in a sliding manner, the second end of the frame is provided with a seat cushion assembly in a sliding manner,

The locking piece is movably connected to the pedal assembly, a limiting part is arranged at the first end of the frame, and the locking piece is used for being selectively connected with the limiting part so as to limit the pedal assembly to move relative to the frame;

The first elastic piece is connected with the locking piece and drives the locking piece to move to be connected with the limiting part;

the unlocking piece is connected to the locking piece and used for driving the locking piece to be separated from the limiting part.

2. The rowing machine of claim 1, wherein the foot pedal assembly includes a shoe and a pedal disposed on the shoe, the shoe slidably sleeved on the frame, the pedal being mounted to the frame by the shoe.

3. A rowing device according to claim 2, wherein the sliding support is provided with a mounting portion, the locking member being slidably mounted to the mounting portion;

The unlocking piece comprises a cam part and a pressing part which are connected, the locking piece is rotationally connected with the cam part, the cam part is in butt joint with the outer wall of the sliding support, the pressing part can drive the cam part to rotate, and the locking piece is driven to move along the direction of separating from the limiting part at the mounting part.

4. A rowing device according to claim 3, wherein the top of the sliding support is provided with the mounting portion, a limit groove extending in the vertical direction is provided in the mounting portion, and the locking member is provided in the limit groove;

The installation department is including first section and the second section that is connected, first section is located the sliding support is inboard, the second section is located the sliding support outside, first section deviates from the one end of second section is provided with the notch of spacing groove, locking piece part can pass the notch with the frame is connected, the second section runs through and is provided with the trompil, locking piece part passes the trompil stretches out outside the installation department and with the cam part is connected.

5. The rowing device according to claim 4, wherein the opening is a first bar-shaped hole, the first bar-shaped hole extending in the vertical direction is formed in the outer side wall of the second section, a connecting portion is arranged on the outer side wall of the locking piece, one end, far away from the locking piece, of the connecting portion penetrates through the first bar-shaped hole to be connected with the cam portion, the cam portion is always abutted to the outer top surface of the sliding support, and rotation of the cam portion can drive the connecting portion to move in the first bar-shaped hole and drive the locking piece to move.

6. The rowing device according to claim 5, wherein a portion of the connecting portion located outside the limiting groove is provided with a limiting member, and the cam portion is provided between the limiting member and an outer side wall of the mounting portion to prevent the cam portion from coming out of the connecting portion.

7. The rowing device according to claim 4, wherein the first elastic member is disposed in the limiting groove and abuts between a groove wall of the limiting groove and the locking member to drive the locking member to move out of the limiting groove and keep being inserted into the limiting portion.

8. The rowing machine of claim 2, wherein the sliding support comprises a support body having two opposite side plates, wherein each side plate has a first roller and a second roller spaced apart in a vertical direction on an inner side wall thereof, the first roller and the second roller respectively abutting against a top surface and a bottom surface of the first end.

9. A rowing device according to any one of claims 1 to 8, wherein the limit portions define limit apertures, the frame being provided with a plurality of said limit apertures spaced apart in the direction of movement of the foot pedal assembly, the locking member being selectively insertable into one of the limit apertures.

10. A rowing device according to any one of claims 1 to 8, wherein the first end is further provided with a second resilient member connected to the foot rest structure, the second resilient member urging the foot rest structure to move in a direction towards the second end.