A skiing and rowing integrated machine

Abstract

The present invention relates to the technical field of fitness equipment, and particularly relates to a skiing and rowing integrated machine. It includes a rowing machine body. Horizontally and symmetrically arranged beams are respectively provided on the front and rear sides of the right end of the chassis of the rowing machine body. Extension beams parallel to the corresponding beams are respectively provided on the outer sides of the two beams, and the two extension beams are respectively slidably arranged on the outer side walls of the corresponding beams through the first slide rails. Slide rail brackets parallel to the corresponding beams are respectively provided on the inner sides of the two beams. Fixed plates are horizontally arranged on the slide rail brackets, and second slide rails are respectively provided at the bottom parts of the fixed plates corresponding to the positions of the two slide rail brackets. It integrates the functions of simulating skiing and rowing, realizes dual functions in one machine, can be flexibly switched between two modes of simulating skiing or rowing, effectively improves the space utilization rate, reduces the waste of space and the expenditure of purchase costs, effectively improves the applicability of the equipment, meets the fitness needs of fitness enthusiasts and the general public, and solves the problems existing in the prior art.

Description

Technical Field

[0001] The present invention relates to the technical field of fitness equipment, and in particular to a ski rowing machine integrated device. Background Art

[0002] Ski machines and rowing machines are currently popular fitness equipment among fitness enthusiasts. Among them, indoor ski machines are fitness equipment that simulates skiing movements in a certain scenario during skiing. There are ski machines that focus on exercising the balance ability of fitness enthusiasts themselves and the calf leg strength. It mainly enables fitness enthusiasts to exert force with their legs, thereby exercising the balance ability and improving the overall coordination during left-right lateral movement. The rowing machine is a fitness equipment that can exercise 80% of the muscles of the whole body, especially having obvious exercise effects on the legs, waist, chest and back. The movement functions of these two types of fitness equipment are relatively single. The ski machine can only simulate the skiing function, while the rowing machine can only realize the simulation of the rowing function. For indoor spaces with limited space, their placement occupies a large amount of space, and it also increases the expenditure on the purchase cost. This obviously cannot meet the fitness needs of existing fitness enthusiasts and the general public. How to achieve dual functions in one machine to meet the multi-functional fitness needs of fitness enthusiasts is a technical problem that needs to be solved urgently at present. Summary of the Invention

[0003] In order to make up for the deficiencies of the prior art, the present invention provides a ski rowing machine integrated device, which has a reasonable structural design, is convenient for loading and unloading, integrates the functions of simulating skiing and rowing, realizes dual functions in one machine, can be flexibly switched between two modes of simulating skiing or rowing, effectively improves the space utilization rate, reduces the waste of space and the expenditure on the purchase cost, effectively improves the applicability of the equipment, meets the fitness needs of fitness enthusiasts and the general public, and solves the problems existing in the prior art.

[0004] The technical solution adopted by the present invention to solve the above technical problems is:

[0005] A skiing and rowing integrated machine, comprising a rowing machine body. Horizontally and symmetrically arranged cross beams are respectively provided on the front and rear sides of the right end of the chassis of the rowing machine body. Extension beams parallel to them are respectively provided on the outer sides of the two cross beams, and the two extension beams are respectively slidably arranged on the outer side walls of the corresponding cross beams through the first sliding rails. Slide rail brackets parallel to them are respectively provided on the inner sides of the two cross beams. Fixing plates are horizontally provided on the slide rail brackets. Second sliding rails are respectively provided at the bottoms of the fixing plates corresponding to the positions of the two slide rail brackets. The fixing plates are slidably arranged on the slide rail brackets through the two second sliding rails. Limiting mechanisms are provided on the cross beams and extension beams on the left and right sides of the fixing plates. A rotating bracket is provided above the fixing plate. The rotating bracket includes two parallel support beams. The left ends of the two support beams are respectively clamped on the chassis, and the right ends are respectively clamped on the support seats at the right ends of the extension beams. Positioning bolts are respectively provided on the outer sides of the two support seats. Each positioning bolt threadedly passes through the corresponding support seat and abuts against the side wall of the right end of the support beam. The left and right ends of the two support beams are respectively connected by connecting shafts. A U-shaped connecting plate is provided in the middle of the two support beams. The U-shaped connecting plate is arranged above the fixing plate and is connected to the fixing plate through a connecting member. A sliding seat is movably clamped on the two support beams of the rotating bracket. The sliding seat is connected to the driving mechanism of the rowing machine body through a linkage mechanism; positioning seats are respectively provided on the front and rear sides of the chassis. Holding rods are horizontally provided on the front and rear sides of the chassis. The ends of the two holding rods respectively horizontally pass through the corresponding positioning seats on one side and abut against the ends of the corresponding extension beams on one side. Locking mechanisms are provided on the positioning seats and extension beams on the opposite side.

[0006] Optionally, the limiting mechanism includes a left connecting plate arranged between the two cross beams on the left side of the fixing plate. Left positioning platforms are symmetrically provided on the front and rear sides of the surface of the left connecting plate. The horizontal height of the surface of the left connecting plate is lower than the horizontal height of the bottom surface of the U-shaped connecting plate, and the distance between the two left positioning platforms is the same as the width of the U-shaped connecting plate; a right connecting plate is provided between the two extension beams on the right side of the fixing plate. Right positioning platforms are symmetrically provided on the front and rear sides of the surface of the right connecting plate. The horizontal height of the surface of the right connecting plate is lower than the horizontal height of the bottom surface of the U-shaped connecting plate, and the distance between the two right positioning platforms is the same as the width of the U-shaped connecting plate.

[0007] Optionally, the connecting member includes a sleeve vertically and movably passing through the U-shaped connecting plate. A flange abutting against the U-shaped connecting plate is provided on the top edge of the sleeve along its circumferential direction. A plurality of locking bolts are provided at the bottom of the fixing plate corresponding to the position of the sleeve. Each locking bolt passes upward through the fixing plate and is threadedly connected to the bottom of the sleeve. A through hole is provided on the fixing plate corresponding to the center position of the sleeve.

[0008] Optionally, the sliding seat includes two skateboards symmetrically arranged horizontally and in parallel above the support beam. A number of connecting rods are connected between the two skateboards. Each connecting rod is perpendicular to the skateboard and arranged parallel to each other. The connecting rods at the left and right ends respectively pass through the skateboard horizontally and are connected to longitudinal pulleys abutted against the surface of the support beam. A number of transverse pulleys abutted against the side wall of the support beam are respectively arranged along the length direction at the bottom of each skateboard. A seat board is arranged on the two skateboards.

[0009] Optionally, the seat board includes angle irons arranged on the skateboards along the length direction of the skateboards. A number of card slots are symmetrically and spacedly arranged on the vertical sections of each angle iron. Two pedals clamped between the two angle irons are respectively clamped in the corresponding card slots through card shafts arranged on the front and rear sides thereof. A groove is arranged at the bottom of the pedals.

[0010] Optionally, it further includes at least a set of retracting mechanisms arranged in the rotating bracket. The retracting mechanism includes a driving wheel movably sleeved on an intermediate connecting rod. Fixed rods are respectively arranged horizontally and in parallel on the left and right sides of the U-shaped connecting plate. Both fixed rods are fixedly connected to the side wall of the support beam. Driven wheels are respectively movably sleeved on the two fixed rods at the position corresponding to the driving wheel. An elastic cord bypasses the top of the driving wheel. Its two ends respectively go downward, go outwards from the bottom of the corresponding driven wheel on one side, and are tied to the connecting shaft on the corresponding side.

[0011] Optionally, the linkage mechanism includes a pull rope tied to one of the connecting rods. The free end of the pull rope sequentially passes through the through holes of the sleeve and the fixing plate downward and is tied to one end of the pull belt. Transmission wheels are respectively arranged on the upper and lower sides of the two vertical beams at the left end of the rowing machine body. The other end of the pull belt is connected to the driving mechanism of the rowing machine body through the two transmission wheels.

[0012] Optionally, the locking mechanism includes a lock nose arranged outside the positioning seat. A lock catch matched with the lock nose is arranged on the side wall at the left end of the extension beam.

[0013] Optionally, a support plate is arranged between the two cross beams close to one side of the chassis. Jacks are symmetrically arranged on the front and rear sides of the surface of the support plate. The ends of each grip rod can be respectively movably inserted into the jacks on the corresponding side.

[0014] Optionally, an arc-shaped cover is arranged on the support seats at the right ends of the two extension beams.

[0015] The present invention adopts the above technical solutions and has the following advantages: reasonable structural design, convenient loading and unloading, integrating the functions of simulating skiing and rowing, realizing dual functions in one machine, capable of flexibly switching between two modes of simulating skiing or rowing, effectively improving the space utilization rate, reducing the waste of space and the expenditure of purchase cost, effectively improving the applicability of the equipment, and meeting the fitness needs of fitness enthusiasts and the general public. Description of the Drawings

[0016] Figure 1 Schematic diagram of the three-dimensional structure of the present invention;

[0017] Figure 2 is Figure 1 top view structure diagram of;

[0018] Figure 3 is Figure 2 A-A cross-sectional structure diagram in;

[0019] Figure 4 Schematic diagram of the three-dimensional structure of the chassis, cross beam, and extension beam;

[0020] Figure 5 Schematic diagram of the three-dimensional structure of the rotating bracket and sliding seat;

[0021] Figure 6 Schematic diagram of the three-dimensional structure of the sliding seat;

[0022] Figure 7 Schematic diagram of the three-dimensional structure of the U-shaped connecting plate;

[0023] Figure 8 Schematic diagram of the three-dimensional structure of the connecting piece;

[0024] Figure 9 Schematic diagram of the three-dimensional structure of the fixing plate;

[0025] Figure 10 Schematic diagram of the three-dimensional structure of the skiing mode of the present invention;

[0026] In the figure, 1, rowing machine body; 2, chassis; 3, cross beam; 4, extension beam; 5, first slide rail; 6, slide rail bracket; 7, fixing plate; 8, second slide rail; 9, support beam; 10, support seat; 11, connecting shaft; 12, U-shaped connecting plate; 13, connecting piece; 1301, sleeve; 1302, flange; 1303, locking bolt; 14, sliding seat; 1401, skateboard; 1402, connecting rod; 1403, longitudinal pulley; 1404, transverse pulley; 1405, seat board; 14051, angle iron; 14052, card slot; 14053, pedal; 14054, card shaft; 14055, groove; 15, positioning seat; 16, grip bar; 17, left connecting plate; 18, left positioning platform; 19, right connecting plate; 20, right positioning platform; 21, through hole; 22, driving wheel; 23, fixed rod; 24, driven wheel; 25, elastic cord; 26, pull cord; 27, pull belt; 28, vertical beam; 29, transmission wheel; 30, lock nose; 31, lock catch; 32, support plate; 33, jack; 34, arc cover; 35, positioning bolt. Specific embodiments

[0027] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments in combination with the accompanying drawings. In the following description, many specific details are set forth in order to fully understand the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below.

[0028] In addition, in the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0029] Furthermore, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specifically defined.

[0030] In the present application, unless otherwise clearly defined and limited, the terms "mounted", "connected", "coupled", "fixed", etc. should be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or integral. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0031] Such as Figures 1-10As shown in the figure, in this embodiment, a skiing and rowing machine integrated device includes a rowing machine body 1. On the front and rear sides of the right end of the chassis 2 of the rowing machine body, cross beams 3 are symmetrically arranged horizontally. On the outer sides of the two cross beams 3, extension beams 4 parallel to them are respectively arranged. And the two extension beams 4 are respectively slidably arranged on the outer side walls of the corresponding cross beams 3 through the first slide rails 5. On the inner sides of the two cross beams 3, slide rail brackets 6 parallel to them are respectively arranged. On the slide rail brackets 6, a fixed plate 7 is arranged horizontally. At the bottom of the fixed plate 7 at the positions corresponding to the two slide rail brackets 6, second slide rails 8 are respectively arranged. The fixed plate 7 is slidably arranged on the slide rail brackets 6 through the two second slide rails 8. On the cross beams 3 and extension beams 4 on the left and right sides of the fixed plate 7, a limiting mechanism is arranged. Above the fixed plate 7, a rotating bracket is arranged. The rotating bracket includes two parallel support beams 9. The left ends of the two support beams 9 are respectively clamped on the chassis 2, and their right ends are respectively clamped on the support seats 10 at the right ends of the extension beams 4. On the outer sides of the two support seats 10, positioning bolts 35 are respectively arranged. Each positioning bolt 35 threadedly passes through the corresponding support seat 10 and abuts against the right end side wall of the support beam 9. The left and right ends of the two support beams 9 are respectively connected by a connecting shaft 11. In the middle of the two support beams 9, a U-shaped connecting plate 12 is arranged. The U-shaped connecting plate 12 is arranged above the fixed plate 7 and is connected to the fixed plate 7 through a connecting member 13. A sliding seat 14 is movably clamped on the two support beams 9 of the rotating bracket. The sliding seat 14 is connected to the driving mechanism of the rowing machine body 1 through a linkage mechanism. On the front and rear sides of the chassis 2, positioning seats 15 are respectively arranged. On the front and rear sides of the chassis 2, grip bars 16 are arranged horizontally. The end parts of the two grip bars 16 respectively horizontally pass through the corresponding positioning seats 15 and abut against the end parts of the corresponding extension beams 4. On the positioning seats 15 and extension beams 4 on the opposite side, a locking mechanism is arranged.

[0032] Optionally, the limiting mechanism includes a left connecting plate 17 arranged between the two cross beams 3 on the left side of the fixed plate 7. On the front and rear sides of the surface of the left connecting plate 17, left positioning platforms 18 are symmetrically arranged respectively. The horizontal height of the surface of the left connecting plate 17 is lower than the horizontal height of the bottom surface of the U-shaped connecting plate 12, and the distance between the two left positioning platforms 18 is the same as the width of the U-shaped connecting plate 12. Between the two extension beams 4 on the right side of the fixed plate 7, a right connecting plate 19 is arranged. On the front and rear sides of the surface of the right connecting plate 19, right positioning platforms 20 are symmetrically arranged respectively. The horizontal height of the surface of the right connecting plate 19 is lower than the horizontal height of the bottom surface of the U-shaped connecting plate 12, and the distance between the two right positioning platforms 20 is the same as the width of the U-shaped connecting plate 12.

[0033] Optionally, the connecting member 13 includes a sleeve 1301 that vertically and movably passes through the U-shaped connecting plate 12. A flange 1302 that abuts against the U-shaped connecting plate 12 is provided along the circumferential direction of the top edge of the sleeve 1301. At the bottom of the fixing plate 7 corresponding to the position of the sleeve 1301, a plurality of locking bolts 1303 are provided. Each locking bolt 1303 passes upward through the fixing plate 7 and is threadedly connected to the bottom of the sleeve 1301. A through hole 21 is provided on the fixing plate 7 corresponding to the center position of the sleeve 1301.

[0034] Optionally, the sliding seat 14 includes two skateboards 1401 that are symmetrically arranged horizontally and in parallel above the support beam 9. A plurality of connecting rods 1402 are connected between the two skateboards 1401. Each connecting rod 1402 is perpendicular to the skateboard 1401 and is arranged parallel to each other. The connecting rods 1402 at the left and right ends respectively pass horizontally through the skateboard 1401 and are connected to longitudinal pulleys 1403 that abut against the surface of the support beam 9. A plurality of transverse pulleys 1404 that abut against the side walls of the support beam 9 are respectively provided along the length direction at the bottom of each skateboard 1401. A seat plate 1405 is provided on the two skateboards 1401.

[0035] Optionally, the seat plate 1405 includes angle irons 14051 that are arranged along the length direction of the skateboard 1401 on the skateboard 1401. A plurality of card slots 14052 are symmetrically and spaced apart on the vertical sections of each angle iron 14051. Two pedals 14053 that are clamped between the two angle irons 14051 are respectively clamped in the corresponding card slots 14052 through card shafts 14054 provided on the front and rear sides thereof. A groove 14055 is provided at the bottom of the pedal 14053.

[0036] Optionally, it further includes at least a set of pulling-back mechanisms provided in the rotating bracket. The pulling-back mechanism includes a driving wheel 22 that is movably sleeved on an intermediate connecting rod 1402. Fixed rods 23 are horizontally and parallelly provided on the left and right sides of the U-shaped connecting plate 12 respectively. Both fixed rods 23 are fixedly connected to the side walls of the support beam 9. Driven wheels 24 are respectively movably sleeved on the two fixed rods 23 corresponding to the position of the driving wheel 22. An elastic cord 25 bypasses the top of the driving wheel 22. Its two ends respectively go downward and outwards from the bottom of the corresponding driven wheel 24 on one side and are then tied to the connecting shaft 11 on the corresponding side.

[0037] Optionally, the linkage mechanism includes a pull rope 26 that is tied to one of the connecting rods 1402. The free end of the pull rope 26 sequentially passes downward through the sleeve 1301 and the through hole 21 of the fixing plate 7 and is then tied to one end of a pull belt 27. Transmission wheels 29 are respectively provided on the upper and lower sides of the two vertical beams 28 at the left end of the rowing machine body 1. The other end of the pull belt 27 is connected to the driving mechanism of the rowing machine body 1 through the two transmission wheels 29.

[0038] Optionally, the locking mechanism includes a lock nose 30 provided outside the positioning seat 15, and a lock catch 31 is provided on the left end side wall of the extension beam 4 and is matched with the lock nose 30.

[0039] Optionally, a support plate 32 is provided between the two cross beams 3 close to the side of the chassis 2. Plug holes 33 are symmetrically provided on the front and rear sides of the surface of the support plate 32. The ends of the respective grip rods 16 can be respectively and movably inserted into the plug holes 33 on the corresponding side. In the skiing mode, the two grip rods 16 can be pulled outwards from the corresponding positioning seats 15 and inserted into the plug holes 33 of the support plate 32. The hand strength and the leg strength can be used together to make the rotating bracket slide left and right. This mode mainly provides assistance of hand strength for those with insufficient leg strength so that they can adapt to this skiing mode faster.

[0040] Optionally, an arc-shaped cover 34 is provided on the support seat 10 at the right ends of the two extension beams 4. On the one hand, the right end of the rotating bracket can be limited through the arc-shaped cover 34 to prevent the rotating bracket from disengaging; on the other hand, the two extension beams 4 are connected together through the arc-shaped cover 34 to improve the stability in the rowing mode.

[0041] In the rowing mode of the device, fitness enthusiasts can sit on the sliding seat 14 and place their feet on the foot pedals of the rowing machine body 1. When pulling the pull rod on the rowing machine body 1, the sliding seat 14 slides left and right on the corresponding support beam 9 through the longitudinal pulley 1403 and the transverse pulley 1404.

[0042] When it is necessary to switch to the skiing mode, first screw out each positioning bolt 35 one by one to separate it from the support base 10. Then, pull the arc-shaped cover 34 to the right, so that the two extension beams 4 slide out to the right through the first slide rail 5. At this time, the rotating bracket is separated from the support base 10. Then, move the fixing plate 7 to the right through the second slide rail 8 on the slide rail bracket 6, so as to drive the rotating bracket to be pulled out from the chassis 2. Then, rotate the rotating bracket horizontally. The U-shaped connecting plate 12 rotates radially along the axis line direction of the sleeve 1301, and the flange 1302 on the sleeve 1301 limits the U-shaped connecting plate to always rotate horizontally. After the rotating bracket rotates 90 degrees, push the arc-shaped cover 34 in the reverse direction so that the left end parts of the two extension beams abut against the corresponding positioning seats 15 on one side, and lock the lock nose 30 with the lock catch 31 to limit the position of the extension beam 4 to remain unchanged. It should be noted that during the process of pushing the extension beam 4 to move, the distance between the left connecting plate 17 between the two cross beams 3 and the right connecting plate 19 on the two extension beams 4 is continuously shortened, and the two left positioning platforms 18 and the two right positioning platforms 20 clamp the U-shaped connecting plate 12, so as to limit the rotation of the rotating bracket after it rotates 90 degrees. The fitness person takes out the two pedals 14053, turns them over 180 degrees and buckles them again into the card slots 14052 of the angle iron 14051. The distance between the feet can be adjusted according to the card slots 14052 clamped in different positions to meet the comfort of different fitness persons. Then, the fitness person steps on the grooves 14055 of the pedals 14053, and after pulling out the two grip bars 16 from the corresponding positioning seats 15, clamps them into the jacks 33 of the support plate 32. If the fitness person has strong leg strength, they can move the sliding seat 14 back and forth only relying on leg strength, and put the grip bars 16 on the ground to keep the body balanced. During the process of the sliding seat 14 moving back and forth, on the one hand, the sliding seat 14 drives the pull rope 26 to move, so that the pull belt 27 pulls the driving mechanism on the rowing machine body 1. When not exerting force, the driving mechanism pulls the pull belt 27 in the reverse direction and pulls the pull rope 26 to reset it, so that the sliding seat 14 returns to the initial position; on the other hand, the return mechanism provides an auxiliary pulling force for the reset of the sliding seat 14. The sliding seat 14 drives the driving wheel 22 to move together, and then pulls the elastic rope 25 to move forward or backward, so that the elastic rope 25 deforms. When the legs do not exert force, the elastic rope 25 restores its deformation and resets the sliding seat. Its structure is reasonably designed, easy to load and unload, integrates the functions of simulating skiing and rowing, realizes one machine with dual functions, can be flexibly switched between the two modes of simulating skiing or rowing, effectively improves the space utilization rate, reduces the waste of space and the expenditure of purchase cost, effectively improves the applicability of the equipment, meets the fitness needs of fitness persons and the general public, and solves the problems existing in the prior art.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the various embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention; for those skilled in the art of this technology, any alternative improvements or transformations made to the embodiments of the present invention fall within the protection scope of the present invention.

[0044] Where the present invention is not described in detail, it is all well-known technology to those skilled in the art of this technology.

Claims

1. A skiing and rowing integrated machine, comprising a rowing machine body, characterized in that, On the front and back sides of the right end of the chassis of the rowing machine body, cross beams are horizontally symmetrically arranged respectively. On the outer sides of the two cross beams, extension beams parallel to them are respectively arranged. And the two extension beams are respectively slidably arranged on the outer side walls of the corresponding cross beams through the first slide rails. On the inner sides of the two cross beams, slide rail brackets parallel to them are respectively arranged. On the slide rail brackets, fixed plates are horizontally arranged. At the bottom parts of the fixed plates corresponding to the positions of the two slide rail brackets, second slide rails are respectively arranged. The fixed plates are slidably arranged on the slide rail brackets through the two second slide rails. On the cross beams and extension beams on the left and right sides of the fixed plates, a limiting mechanism is arranged. Above the fixed plate, a rotating bracket is arranged. The rotating bracket includes two parallel support beams. The left ends of the two support beams are respectively clamped on the chassis, and their right ends are respectively clamped on the support seats at the right ends of the extension beams. On the outer sides of the two support seats, positioning bolts are respectively arranged. Each positioning bolt respectively passes through the corresponding support seat in a threaded manner and abuts against the right end side wall of the support beam. The left and right ends of the two support beams are respectively connected by connecting shafts. In the middle of the two support beams, a U-shaped connecting plate is arranged. The U-shaped connecting plate is arranged above the fixed plate and is connected to the fixed plate through a connecting piece. A sliding seat is movably clamped on the two support beams of the rotating bracket. The sliding seat is connected to the driving mechanism of the rowing machine body through a linkage mechanism; On the front and back sides of the chassis, positioning seats are respectively arranged. On the front and back sides of the chassis, grip bars are horizontally arranged respectively. The end parts of the two grip bars respectively horizontally pass through the corresponding positioning seats on one side and abut against the end parts of the corresponding extension beams on one side. On the positioning seats and extension beams on the opposite side, a locking mechanism is arranged.

2. The all-in-one ski and rowing machine according to claim 1, characterized in that, The limiting mechanism includes a left connecting plate arranged between the two cross beams on the left side of the fixed plate. On the front and back sides of the surface of the left connecting plate, left positioning platforms are symmetrically arranged respectively. The horizontal height of the surface of the left connecting plate is lower than the horizontal height of the bottom surface of the U-shaped connecting plate, and the distance between the two left positioning platforms is the same as the width of the U-shaped connecting plate; A right connecting plate is arranged between the two extension beams on the right side of the fixed plate. On the front and back sides of the surface of the right connecting plate, right positioning platforms are symmetrically arranged respectively. The horizontal height of the surface of the right connecting plate is lower than the horizontal height of the bottom surface of the U-shaped connecting plate, and the distance between the two right positioning platforms is the same as the width of the U-shaped connecting plate.

3. A skiing and rowing integrated machine according to claim 1 or 2, characterized in that, The connecting piece includes a sleeve vertically movably passing through the U-shaped connecting plate. On the top edge of the sleeve, a flange abutting against the U-shaped connecting plate is arranged along the circumferential direction of the sleeve. At the bottom of the fixed plate corresponding to the position of the sleeve, a plurality of locking bolts are arranged. Each locking bolt passes through the fixed plate upward and is threadedly connected to the bottom of the sleeve. A through hole is arranged on the fixed plate corresponding to the center position of the sleeve.

4. A ski-rowing integrated machine according to claim 1 or 2, characterized in that, The sliding seat includes two skateboards horizontally symmetrically arranged in parallel on the support beams. Between the two skateboards, a plurality of connecting rods are connected. Each connecting rod is perpendicular to the skateboard and is arranged in parallel with each other. Among them, the connecting rods at the left and right ends respectively horizontally pass through the skateboards and are connected with longitudinal pulleys abutting against the surface of the support beam. Along the length direction of the bottom of each skateboard, a plurality of transverse pulleys abutting against the side wall of the support beam are respectively arranged. A seat plate is arranged on the two skateboards.

5. A skiing and rowing integrated machine according to claim 4, characterized in that, The seat board includes angle irons arranged on the sliding board along the length direction of the sliding board. A number of card slots are symmetrically and spacedly arranged on the vertical sections of each angle iron. Two pedals clamped between two angle irons are respectively clamped in the corresponding card slots through card shafts arranged on their front and rear sides. A groove is provided at the bottom of the pedal.

6. The one-piece skiing and rowing machine according to claim 4, characterized in that , further comprising at least a set of retracting mechanisms arranged in the rotating bracket. The retracting mechanism includes a driving wheel movably sleeved on an intermediate connecting rod. Fixed rods are horizontally and parallelly arranged on the left and right sides of the U-shaped connecting plate respectively. Both fixed rods are fixedly connected to the side wall of the support beam. Driven wheels are movably sleeved on the two fixed rods corresponding to the position of the driving wheel respectively. An elastic cord bypasses the top of the driving wheel. Its two ends respectively go downward, go outwards from the bottom of the corresponding driven wheel on one side, and then are tied to the connecting shaft on the corresponding side.

7. A skiing and rowing integrated machine according to claim 4, characterized in that , the linkage mechanism includes a pull rope tied to one of the connecting rods. The free end of the pull rope sequentially passes downward through the through holes of the sleeve and the fixing plate and is tied to one end of the pull belt. Transmission wheels are respectively arranged on the upper and lower sides of the two vertical beams at the left end of the rowing machine body. The other end of the pull belt is connected to the driving mechanism of the rowing machine body through the two transmission wheels.

8. A ski rowing machine according to claim 1, characterized in that , the locking mechanism includes a lock nose arranged outside the positioning seat. A lock catch matched with the lock nose is arranged on the side wall of the left end of the extension beam.

9. A skiing and rowing integrated machine according to claim 1, characterized in that , a support plate is arranged between the two cross beams close to one side of the chassis. Plug holes are symmetrically arranged on the front and rear sides of the surface of the support plate. The ends of each grip rod can be respectively movably inserted into the plug holes on the corresponding side.

10. The one-piece skiing and rowing machine according to claim 1, characterized in that , an arc-shaped cover is arranged on the support seats at the right ends of the two extension beams.

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