Foldable rowing machine

Abstract

The utility model discloses a foldable rowing machine which comprises a machine body, the machine body comprises a seat body and a vertical frame, the seat body is provided with a rope wheel and a flywheel, the rope wheel and the flywheel are transversely arranged, the lower end of the vertical frame is rotatably connected to the seat body, the vertical frame can be turned over backwards to the seat body or turned over forwards to be erected, and the machine body further comprises a first locking mechanism. The first locking mechanism is used for locking rotation of the vertical frame and the seat body so that the vertical frame can be kept in a vertical state, the vertical frame comprises a lower vertical pipe, an upper vertical pipe and a second locking mechanism, the lower end of the lower vertical pipe is rotatably connected with the seat body, the upper vertical pipe is connected to the lower vertical pipe and can move relative to the lower vertical pipe, and the second locking mechanism is used for locking the upper vertical pipe. The upper vertical pipe moves relative to the lower vertical pipe to telescopically adjust the length of the vertical frame, the second locking mechanism is used for locking the relative movement of the upper vertical pipe and the lower vertical pipe, the vertical frame is telescopically folded and combined with the lower seat body structure, so that the folded rowing machine can reach a smaller height size, and the packaging size of the rowing machine is reduced.

Description

Technical Field

[0001] This utility model relates to a rowing machine, and more particularly to a foldable rowing machine. Background Technology

[0002] A rowing machine is a fitness machine designed for fitness training, simulating the motion of rowing. It effectively strengthens the muscles of the upper limbs, chest, back, waist, and legs. The exerciser sits on a bench with bent legs, simultaneously applying force with their hands and feet, straightening their legs, arching their back, and pulling their arms to the sides and back, mimicking rowing. Each stroke completes a full contraction and extension of the body, achieving a comprehensive aerobic exercise effect. Therefore, more and more people are choosing rowing machines as their exercise equipment. Rowing machines are categorized by resistance into water resistance rowing machines and magnetic resistance rowing machines. The main components of a magnetic resistance rowing machine are: an electromagnet, a flywheel, an alloy frame, and a belt. It uses the principle of electromagnetic induction; the resistance mainly comes from the distance between the magnet and the flywheel. During exercise, it is generally adjusted by turning a knob, and the resistance is relatively stable when exerting force.

[0003] Existing magnetic resistance rowing machines, such as the rowing machine disclosed in patent CN217745652U, include a frame body with a slide rail on the frame body; a main body housing, which is a ring-shaped housing that is vertically fixed to the front end of the frame body; a magnetic resistance component, a magnetic inertia wheel assembly, and a speed detection component are fixedly installed inside the main body housing; a human-computer interaction terminal and a handle that is linked to the magnetic inertia wheel assembly are installed on the main body housing; the magnetic control component and the speed detection component are communicatively connected to the human-computer interaction terminal; a seat cushion is slidably installed on the slide rail of the frame body; the magnetic inertia wheel assembly includes a rope winder and a magnetic inertia wheel; the rope winder is connected to the handle via a pull rope, and the pull rope is wound around the rope winder; the magnetic inertia wheel is fixed to the bottom of the main body housing via a base; the rotation shaft of the magnetic inertia wheel is connected to the rope winder via a belt drive; the magnetic resistance component includes an electromagnet, which is fixedly installed on the front side of the magnetic inertia wheel and electrically connected to the controller.

[0004] The existing magnetic resistance rowing machine has the following problems: the magnetic inertia wheel and the rope reel are both placed vertically inside the shell, which requires the shell to be set to stand upright, making the overall height of the rowing machine higher, and the whole machine cannot be folded, resulting in a larger packaging volume. Utility Model Content

[0005] Since the magnetic inertial wheel and the rope winder are both vertically arranged inside the housing, the housing needs to be set to stand upright, which increases the overall height of the rowing machine and makes it impossible to fold, resulting in a large packaging volume. Therefore, this utility model provides a foldable rowing machine.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a foldable rowing machine, including a body, the body including a seat and a stand installed at the front of the seat, the seat is provided with a rope wheel for winding or releasing the pull rope and a flywheel connected to the rope wheel for transmission, the rope wheel and the flywheel are both arranged horizontally, the lower end of the stand is rotatably connected to the seat, the stand can be flipped backward onto the seat or flipped forward to stand up, the body also includes a first locking mechanism, the first locking mechanism is used to lock the rotation of the stand and the seat, so that the stand can be kept in the standing state, the stand includes a lower stand tube, an upper stand tube and a second locking mechanism, the lower end of the lower stand tube is rotatably connected to the seat, the upper stand tube is connected to the lower stand tube and can move relative to the lower stand tube, the upper stand tube moves relative to the lower stand tube to extend and retract to adjust the length of the stand, the second locking mechanism is used to lock the relative movement of the upper stand tube and the lower stand tube.

[0007] A further preferred embodiment of this utility model is as follows: the seat includes a frame body and a slide rail, the front end of the slide rail is detachably connected to the rear end of the frame body, the upright is rotatably connected to the front end of the frame body, a seat cushion is slidably connected to the slide rail, the rope wheel and flywheel are mounted on the frame body, a shell is installed on the outside of the frame body, and a receiving space for accommodating the rope wheel and flywheel is formed inside the shell. In the folded state, the upright is shortened and flipped backward, and the upper end of the upright does not extend beyond the rear end of the frame body.

[0008] A further preferred embodiment of this utility model is that the rope wheel and the flywheel are arranged one in front of the other, and the rotation center line of the rope wheel is parallel to the rotation center line of the flywheel.

[0009] A further preferred technical solution of this utility model is as follows: a hinge seat is provided at the front end of the frame body, the lower end of the upright is hinged to the hinge seat, the hinge seat has a backing surface, the first locking mechanism includes a first fastening screw, a first connecting hole is provided on the backing surface, and a first threaded hole corresponding to the first connecting hole is provided on the upright. When the upright is flipped forward and erected, the backing surface supports the front side of the upright as the backing part of the upright, the first connecting hole and the first threaded hole are aligned, and the first fastening screw passes through the first connecting hole and connects with the first threaded hole.

[0010] A further preferred embodiment of this utility model is as follows: the second locking mechanism includes a second fastening screw, the upper vertical tube is slidably inserted into the lower vertical tube, the lower vertical tube is provided with a second connecting hole, and the upper vertical tube is provided with a second threaded hole. When the upper vertical tube moves upward relative to the lower vertical tube until the second threaded hole and the second connecting hole are aligned, the second fastening screw passes through the second connecting hole and connects with the second threaded hole to lock the relative sliding of the upper and lower vertical tubes.

[0011] A further preferred embodiment of this utility model is that the slide rail is fixedly connected to the rear end of the frame body by a second mounting screw.

[0012] A further preferred embodiment of this utility model is as follows: a front support frame is detachably connected to the bottom of the front end of the main frame body, and a rear support frame is detachably connected to the bottom of the rear end of the slide rail.

[0013] A further preferred technical solution of this utility model is as follows: it also includes an electronic watch and a wire concealment cover. The top of the stand is provided with a mounting plate. The electronic watch and the wire concealment cover are located on both sides of the mounting plate and are fixedly mounted on the mounting plate by the first mounting screw. The stand is provided with a wire outlet. The wire extends out from the wire outlet and is electrically connected to the electronic watch. The wire is concealed between the electronic watch and the wire concealment cover.

[0014] A further preferred embodiment of this utility model includes a pull rope, a handle, and a resistance device. The fixed end of the pull rope is connected to a rope wheel, and the free end of the pull rope is connected to the handle. The upright frame has an opening for the free end of the pull rope to extend and connect to the handle. The rope wheel can wind or release the pull rope. The rope wheel is connected to an elastic element for driving it to wind the pull rope. When the pull rope pulls the rope wheel to rotate, the rope wheel drives the flywheel to rotate. The resistance device is used to provide resistance to the rotation of the flywheel.

[0015] A further preferred embodiment of this utility model is that foot pedals are installed on both sides of the shell.

[0016] Compared with the prior art, the advantages of this utility model are that by arranging the flywheel and rope wheel horizontally to reduce the height of the seat, and by rotatably connecting the lower end of the stand to the seat so that the stand can be folded back onto the seat, the rowing machine body is folded. The stand is designed as a telescopic structure. Through the telescopic and folding of the stand and its combination with the lower seat structure, the folded rowing machine can achieve a smaller height, thereby reducing the packaging size of the rowing machine. Attached Figure Description

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0018] Figure 1 This is a schematic diagram of the rowing machine when it is deployed.

[0019] Figure 2 A schematic diagram of the rowing machine frame in its extended state;

[0020] Figure 3 for Figure 2 Enlarged view of a portion at point A;

[0021] Figure 4 A schematic diagram showing the disassembly of the electronic display and cable management cover in the shortened state of the rowing machine stand;

[0022] Figure 5 for Figure 4 A magnified view of section B;

[0023] Figure 6 This is a schematic diagram showing the separation of the slide rail and the main frame.

[0024] Figure 7 for Figure 6 A magnified view of a portion at point C;

[0025] Figure 8 A diagram showing the overall folding and disassembly of the rowing machine;

[0026] Figure 9 This is an exploded view of the shell, frame body, pulley, and flywheel.

[0027] Figure 10 This is a diagram showing the folded state of the support frame and the main frame body;

[0028] Figure 11 This is a schematic diagram of the interior of the casing when it is folded.

[0029] In the diagram: 1. Body; 2. Base; 3. Stand; 4. Handle; 5. Electronic watch; 6. Opening; 7. Foot pedal; 8. Seat cushion; 9. Lower upright tube; 10. Upper upright tube; 11. Second fastening screw; 12. Second connecting hole; 13. Second threaded hole; 14. First fastening screw; 15. Cable outlet; 16. Mounting plate; 17. Cable concealing cover; 18. First mounting screw; 19. Housing; 20. Front support frame; 21. Third mounting screw; 22. Slide rail; 23. Rear support frame; 24. Mounting base; 25. Second mounting screw; 26. Fourth mounting screw; 27. Left half-shell; 28. Right half-shell; 29. ​​Frame body; 30. Hinge seat; 31. Belt; 32. Flywheel; 33. Rope pulley; 34. Drive wheel; 35. Top cover; 36. First connecting hole; 37. First threaded hole; 38. Abutment surface. Detailed Implementation

[0030] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0031] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0032] Figures 1-11 As shown, the foldable rowing machine includes a body 1, handles 4, a pull rope (not shown in the attached figure), a seat 8, and a resistance device. The body 1 includes a seat 2 and a stand 3 mounted on the front of the seat 2. The seat 8 is slidably mounted on the seat 2. The seat 2 is equipped with a rotatable pulley 33 and a flywheel 32. The fixed end of the pull rope is connected to the pulley 33, and the free end of the pull rope is connected to the handle 4. The stand 3 is provided with an opening 6 for the free end of the pull rope to extend out and connect to the handle 4. The pulley 33 can wind or release the pull rope. The pulley 33 is connected to an elastic element for driving its winding of the pull rope. The flywheel 32 is driven by the pulley 33. During exercise, the user sits on the seat 8, holds the handles with both hands, and pulls the pull rope outward by pulling the handles. As the pull rope is pulled outward, it drives the pulley 33 to rotate. The pulley 33 drives the flywheel 32, which is driven by it, to rotate. During the rotation of the flywheel 32, the resistance device provides resistance to the rotation of the flywheel 32, so that the user has a load when pulling the handles, thus exercising the user.

[0033] Figure 9 , Figure 11 As shown, specifically, the rope wheel 33 is coaxially connected to the driving wheel 34, and the flywheel 32 is coaxially connected to the driven wheel. The driving wheel 34 and the driven wheel are connected and driven by the belt 31. When the rope pulls the rope wheel 33 to rotate, the driving wheel 34 and the rope wheel 33 rotate synchronously. The driving wheel 34 drives the driven wheel and the flywheel 32 to rotate through the belt 31.

[0034] The driven wheel is fixedly connected to the flywheel 32.

[0035] Preferably, the elastic element is a coil spring. A fixed shaft is installed on the base 2. Both the rope wheel 33 and the drive wheel 34 are rotatably sleeved on the fixed shaft. The coil spring is located between the rope wheel 33 and the fixed shaft. One end of the coil spring is connected to the fixed shaft, and the other end of the coil spring is connected to the rope wheel 33. When the user pulls the rope, the rope wheel 33 releases the rope, and the coil spring coils up to accumulate elastic force. When the user releases the rope, the coil spring releases the accumulated elastic force, causing the rope wheel 33 to coil up the pulled rope.

[0036] A one-way drive can be set between the rope wheel 33 and the driving wheel 34, that is, when the user pulls the pull rope, the rope wheel 33 drives the driving wheel 34 to rotate together. When the user releases the pull rope, the drive between the rope wheel 33 and the driving wheel 34 is disconnected. The rope wheel 33 rotates, and the driving wheel 34 does not rotate, so that when the user releases the pull rope and the rope wheel 33 rotates, the rotation of the rope wheel 33 will not be affected by the resistance applied by the resistance device to the flywheel 32, making the rotation of the rope wheel 33 smoother. For example, a one-way bearing is used to connect the rope wheel 33 and the driving wheel 34. One end of the rope wheel 33 can be provided with a connecting shaft, the one-way bearing is sleeved on the connecting shaft, and the driving wheel 34 is sleeved outside the one-way bearing, so as to form a one-way drive between the rope wheel 33 and the driving wheel 34. The one-way bearing is an existing bearing structure in the market, such as a one-way bearing with the brand BANLMEYD / Bangmeite and the model CSK8.

[0037] Preferably, the resistance device includes a magnetic block provided on one side of the flywheel 32. The flywheel 32 is made of a magnetic material. The magnetic block and the flywheel 32 are magnetically matched to apply a magnetic resistance to the flywheel 32, and the magnetic resistance applied by the magnetic block to the flywheel 32 can be controlled by adjusting the distance between the magnetic block and the flywheel 32.

[0038] The resistance device of this patent can be of various types. For example, the resistance of the resistance device can come from the tension of a spiral spring, the elasticity of an elastic rope, the friction of a friction plate, etc. This case is not limited. The resistance device can also be the magnetic resistance structure provided in this embodiment. There is another scheme for the magnetic resistance structure. For example, the resistance device includes a first magnetic member and a second magnetic member. The first magnetic member is arranged on the outer periphery of the flywheel 32, and the second magnetic member is arranged outside the first magnetic member. There is a distance between the first magnetic member and the second magnetic member, and the distance between the first magnetic member and the second magnetic member determines the magnitude of the magnetic force.

[0039] The structures of the above handle 4, rope wheel 33, flywheel 32, spiral spring, pull rope and resistance device are all prior arts in this field. Reference can be made to patents CN219963895U, CN203436729U, CN112703042B, and this patent will not be elaborated in detail.

[0040] Both the rope wheel 33 and the flywheel 32 are arranged horizontally. The lower end of the upright frame 3 is rotatably connected to the seat body 2. The upright frame 3 can be turned backward onto the seat body 2 or turned forward to stand up. The fuselage 1 further includes a first locking mechanism for locking the rotation of the upright frame 3 and the seat body 2, so that the upright frame 3 can be kept in the upright state.

[0041] Figures 2-4As shown, the stand 3 includes a lower upright tube 9, an upper upright tube 10, and a second locking mechanism. The lower end of the lower upright tube 9 is rotatably connected to the base 2. The upper upright tube 10 is connected to the lower upright tube 9 and can move relative to the lower upright tube 9. The upper upright tube 10 moves relative to the lower upright tube 9 to extend and retract to adjust the length of the stand 3. The second locking mechanism is used to lock the relative movement of the upper upright tube 10 and the lower upright tube 9. The opening 6 is provided on the upper upright tube 10, which allows the stand 3 to be shortened to its shortest state by moving the upper upright tube 10 and the lower upright tube 9 relative to each other, making the rowing machine smaller in size when folded.

[0042] This patent reduces the height of the seat 2 by arranging the flywheel 32 and rope wheel 33 laterally, and rotatably connecting the lower end of the stand 3 to the seat 2, so that the stand 3 can be folded back onto the seat 2, making the rowing machine body 1 foldable. The stand 3 is set as a telescopic structure. Through the telescopic and folding of the stand 3 and its combination with the lower seat 2 structure, the folded rowing machine can achieve a smaller height, thereby reducing the packaging size of the rowing machine.

[0043] Preferably, the rope pulley 33 and the flywheel 32 are arranged one in front of the other, with the rotation center line of the rope pulley 33 parallel to the rotation center line of the flywheel 32. The arrangement of the rope pulley 33 and the flywheel 32 makes the overall structure more compact, thereby reducing the volume of the seat.

[0044] Preferably, the second locking mechanism includes a second fastening screw 11. The upper upright tube 10 is slidably inserted into the lower upright tube 9. The lower upright tube 9 is provided with a second connecting hole 12, and the upper upright tube 10 is provided with a second threaded hole 13. When the upper upright tube 10 moves upward relative to the lower upright tube 9 until the second threaded hole 13 aligns with the second connecting hole 12, the second fastening screw 11 passes through the second connecting hole 12 and connects with the second threaded hole 13 to lock the relative sliding of the upper upright tube 10 and the lower upright tube 9, so that the upright 3 can be used. When the rowing machine needs to be folded, the second fastening screw 11 is removed so that the upper upright tube 10 can move relative to the lower upright tube 9. The upper upright tube 10 is retracted inward so that the upright 3 is shortened to its shortest state, and then the upright 3 is folded back.

[0045] Figure 6 , Figure 7 As shown, the seat 2 includes a frame body 29 and a slide rail 22. The front end of the slide rail 22 is detachably connected to the rear end of the frame body 29. The upright 3 is rotatably connected to the front end of the frame body 29. The seat cushion 8 is slidably mounted on the slide rail 22. The pulley 33 and the flywheel 32 are mounted on the frame body 29. A housing 19 is installed on the outside of the frame body 29. The housing 19 forms a receiving space for accommodating the pulley 33 and the flywheel 32. In the folded state, the upright 3 is shortened and flipped backward. At this time, the upper end of the upright 3 does not extend beyond the rear end of the frame body 29.

[0046] The slide rail 22 is detachable from the frame body 29, so that when packing or storing, the slide rail 22 can be removed from the rear of the frame body 29, dividing the base 2 into the front and rear parts to reduce the packaging length. When the stand 3 is shortened and folded backward onto the frame body 29, the upper end of the stand 3 does not exceed the rear end of the frame body 29. The telescopic stand 3 makes the length of the stand 3 and the frame body 29 shorter after folding, which makes it easier to store or pack the folded stand 3 and the frame body 29.

[0047] The front end of the frame body 29 is provided with a hinge seat 30. The lower end of the upright 3 is hinged to the hinge seat 30. The hinge seat 30 has an abutment surface 38. The first locking mechanism includes a first fastening screw 14. The abutment surface 38 is provided with a first connecting hole 36. The upright 3 is provided with a first threaded hole 37 corresponding to the first connecting hole 36. When the upright 3 is flipped forward and erected, the abutment surface 38 supports the front side of the upright 3 as the abutment part of the front side of the upright 3. At this time, the first connecting hole 36 and the first threaded hole 37 are aligned. The first fastening screw 14 passes through the first connecting hole 36 and connects with the first threaded hole 37, locking the upright 3 in the erected state. When it is necessary to fold the upright 3, the first fastening screw 14 is unscrewed, so that the upright 3 can rotate relative to the base body 2, and the upright 3 is flipped backward to complete the folding.

[0048] Preferably, the hinge seat 30 is U-shaped, and the hinge seat 30 is upright with openings 6 at the rear and top. The lower end of the stand 3 is attached to the hinge seat 30, and the inner wall surface of the front side of the hinge seat 30 serves as the aforementioned abutment surface 38 for abutment when the stand 3 is erected forward.

[0049] Preferably, the slide rail 22 is fixedly connected to the rear end of the frame body 29 by a second mounting screw 25.

[0050] Specifically, the rear end of the frame body 29 is provided with a mounting base 24, which is inverted U-shaped. The bottom and rear of the mounting base 24 have openings 6. The rear end of the slide rail 22 is inserted into the mounting base 24 and is fixedly connected to the mounting base 24 by a second mounting screw 25.

[0051] The housing 19 includes a left half-shell 27, a right half-shell 28, and a top cover 35. The left half-shell 27, the right half-shell 28, and the top cover 35 are joined together and fixed by screws. The hinge seat 30 and the mounting seat 24 extend from the front and rear sides of the housing 19, respectively.

[0052] Figure 6 , Figure 8As shown, in addition, a front support frame 20 is detachably connected to the bottom of the front end of the frame body 29, and a rear support frame 23 is detachably connected to the bottom of the rear end of the slide rail 22. Preferably, the front support frame 20 is fixedly connected to the frame body 29 by a third mounting screw 21, and the rear support frame 23 is fixedly connected to the slide rail 22 by a fourth mounting screw 26. The detachable front support frame 20 and rear support frame 23 allow the seat body 2 to be disassembled into smaller pieces for easy storage or packaging.

[0053] Footrests 7 are installed on both sides of the housing 19 for the user to place their feet.

[0054] Figure 4 , Figure 5 As shown, the rowing machine also includes an electronic watch 5 and a cable concealment cover 17. The top of the stand 3 is provided with a mounting plate 16. The electronic watch 5 and the cable concealment cover 17 are located on both sides of the mounting plate 16 and are fixedly mounted on the mounting plate 16 by the first mounting screw 18. The stand 3 is provided with a cable outlet 15. The wire extends from the cable outlet 15 and is electrically connected to the electronic watch 5. The wire is concealed between the electronic watch 5 and the cable concealment cover 17. This structure facilitates the disassembly and assembly of the electronic watch 5 and the wire is not exposed to the outside, making the overall appearance more concise.

[0055] Figure 8 As shown, when storing or packing, the slide rail 22, the frame body 29 with the housing 19, the front support frame 20, the rear support frame 23 and the electronic watch 5 are separated, and then the stand 3 is retracted and folded backward to reduce the packaging volume.

[0056] The foldable rowing machine provided by this utility model has been described above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand this utility model and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from its principle, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A foldable rowing machine comprising a machine body, the machine body comprising a seat body and a stand mounted to a front portion of the seat body, the seat body being provided with a rope wheel for winding or releasing a pulling rope and a flywheel in driving connection with the rope wheel, characterized in that, Both the rope pulley and flywheel are horizontally arranged. The lower end of the upright frame is rotatably connected to the base. The upright frame can be tilted backward onto the base or flipped forward to stand upright. The machine body also includes a first locking mechanism, which is used to lock the rotation of the upright frame and the base, so that the upright frame can be kept in the upright state. The upright frame includes a lower upright tube, an upper upright tube, and a second locking mechanism. The lower end of the lower upright tube is rotatably connected to the base. The upper upright tube is connected to the lower upright tube and can move relative to the lower upright tube. The upper upright tube moves relative to the lower upright tube to extend and retract to adjust the length of the upright frame. The second locking mechanism is used to lock the relative movement of the upper upright tube and the lower upright tube.

2. The foldable rowing machine of claim 1, wherein, The seat includes a frame body and a slide rail. The front end of the slide rail is detachably connected to the rear end of the frame body. The upright is rotatably connected to the front end of the frame body. A seat cushion is slidably connected to the slide rail. The pulley and flywheel are mounted on the frame body. A housing is installed on the outside of the frame body. The housing forms a receiving space for accommodating the pulley and flywheel. In the folded state, the upright is shortened and folds backward. The upper end of the upright does not extend beyond the rear end of the frame body.

3. The foldable rowing machine of claim 1 or 2, wherein, The rope pulley and flywheel are arranged one in front of the other, with the rotation center line of the rope pulley parallel to the rotation center line of the flywheel.

4. The foldable rowing machine of claim 2, wherein, The front end of the frame body is provided with a hinge seat, and the lower end of the upright is hinged to the hinge seat. The hinge seat has a backing surface. The first locking mechanism includes a first fastening screw. A first connecting hole is provided on the backing surface. A first threaded hole corresponding to the first connecting hole is provided on the upright. When the upright is flipped forward and erected, the backing surface supports the front side of the upright as the backing part of the upright. The first connecting hole and the first threaded hole are aligned. The first fastening screw passes through the first connecting hole and connects with the first threaded hole.

5. The foldable rowing machine of claim 1, wherein, The second locking mechanism includes a second fastening screw. The upper riser is slidably inserted into the lower riser. The lower riser has a second connecting hole, and the upper riser has a second threaded hole. When the upper riser moves upward relative to the lower riser until the second threaded hole aligns with the second connecting hole, the second fastening screw passes through the second connecting hole and connects with the second threaded hole to lock the relative sliding of the upper and lower risers.

6. The foldable rowing machine of claim 2, wherein, The slide rail is fixedly connected to the rear end of the frame body by a second mounting screw.

7. The foldable rowing machine of claim 2, wherein, The bottom of the front end of the main frame is detachably connected to a front support frame, and the bottom of the rear end of the slide rail is detachably connected to a rear support frame.

8. The foldable rowing machine of claim 1, wherein, It also includes an electronic watch and a wire concealment cover. The top of the stand is provided with a mounting plate, and the electronic watch and the wire concealment cover are located on both sides of the mounting plate and are fixedly mounted on the mounting plate by the first mounting screw. The stand is provided with a wire outlet, and the wire extends out from the wire outlet and is electrically connected to the electronic watch. The wire is concealed between the electronic watch and the wire concealment cover.

9. The foldable rowing machine of claim 1, wherein, It also includes a pull rope, a handle, and a resistance device. The fixed end of the pull rope is connected to a rope wheel, and the free end of the pull rope is connected to the handle. The stand has an opening for the free end of the pull rope to extend and connect to the handle. The rope wheel can wind or release the pull rope. The rope wheel is connected to an elastic element for driving it to wind the pull rope. When the pull rope pulls the rope wheel to rotate, the rope wheel drives the flywheel to rotate. The resistance device is used to provide resistance to the rotation of the flywheel.

10. The foldable rowing machine of claim 2, wherein, Foot pedals are installed on both sides of the casing.

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