CN218248416U - Skiing and rowing integrated machine - Google Patents

Abstract

The utility model relates to a body-building apparatus technical field especially relates to a skiing rowing all-in-one. The rowing machine comprises a rowing machine body, wherein beams are respectively and symmetrically arranged on the front side and the rear side of the right end of an underframe of the rowing machine body in a horizontal mode, extension beams arranged in parallel with the two beams are respectively arranged on the outer sides of the two beams, the two extension beams are respectively arranged on the outer side wall of the beam corresponding to one side in a sliding mode through first sliding rails, sliding rail supports arranged in parallel with the two beams are respectively arranged on the inner sides of the two beams, fixing plates are horizontally arranged on the sliding rail supports, and second sliding rails are respectively arranged at the bottoms of the fixing plates corresponding to the positions of the two sliding rail supports in a corresponding mode. It collects simulation skiing, rowing function in an organic whole, realizes a tractor serves two functions, can switch over in a flexible way in two kinds of modes of simulation skiing or rowing, effectively improves space utilization, reduces the waste and the expenditure of purchase cost to the space, effectively improves equipment's suitability, satisfies fitness personage and the body-building needs of vast citizen, has solved the problem that exists among the prior art.

Description

Skiing and rowing integrated machine

Technical Field

The utility model relates to a body-building apparatus technical field especially relates to a skiing rowing all-in-one.

Background

Skiing machines and rowing machines are fitness equipment that people like at present. The indoor skiing machine is a fitness device simulating skiing action in a certain scene in the skiing process, has the advantages of emphasizing on exercising the self balance ability of a exerciser and the strength of legs and legs, and mainly enables the exerciser to exert force through the legs, so that the balance ability is exercised in the process of left-right transverse movement, and the coordination of the whole body is improved. The rowing machine is a fitness equipment which can exercise 80% of muscles of the whole body, and particularly has obvious exercise effects on legs, waist, chest and back. The two fitness equipments have relatively single exercise function, the skiing machine can only simulate skiing function, and the rowing machine can only realize the simulation rowing function, so that the requirement of occupying space for placing the skiing equipment is large for indoor space with limited space, the purchase cost is additionally increased, and the fitness requirements of the existing fitness people and the majority of citizens can not be met obviously. How to realize a tractor serves dual-function, satisfy body-building and reach the multi-functional body-building demand of people, be the technical problem who is used for solution now.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a compensate prior art's not enough, the utility model provides a skiing and rowing all-in-one machine, its structural design is reasonable, loading and unloading are convenient, collect the simulation skiing, rowing function is in an organic whole, realize a tractor serves dual-purpose, can carry out nimble switching in simulation skiing or rowing two kinds of modes, effectively improve space utilization, reduce the waste and the purchase cost's expenditure to the space, effective improve equipment's suitability, satisfy the body-building needs of fitness personage and vast citizen, the problem that exists among the prior art has been solved.

The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be:

a skiing and rowing integrated machine comprises a rowing machine body, wherein cross beams are horizontally and symmetrically arranged on the front side and the rear side of the right end of a bottom frame of the rowing machine body respectively, extension beams arranged in parallel with the cross beams are arranged on the outer sides of the two cross beams respectively, the two extension beams are arranged on the outer side wall of the cross beam on the corresponding side in a sliding mode through first slide rails respectively, slide rail supports arranged in parallel with the two cross beams are arranged on the inner sides of the two cross beams respectively, a fixed plate is horizontally arranged on the slide rail supports, second slide rails are arranged at the bottoms of the fixed plates corresponding to the positions of the two slide rail supports respectively and are arranged on the slide rail supports in a sliding mode through the two second slide rails, limiting mechanisms are arranged on the cross beams and the extension beams on the left side and the right side of the fixed plate respectively, a rotating support is arranged above the fixed plate and comprises two parallel support beams, the left ends of the two support beams are respectively clamped on the bottom frame, the right ends of the two support beams are respectively clamped on the supporting seats on the right end of the extension beams, positioning bolts are respectively arranged on the outer sides of the two supporting seats, the two supporting beams, the positioning bolts respectively penetrate through threads and are connected with the side walls of the right end walls of the supporting beams on the supporting frames through connecting plates, a U-shaped connecting plate, and a movable support plate, the fixed plate is connected with a rotary mechanism, and connected with a rowing mechanism, the fixed plate, and a connecting plate, the fixed plate, and a U-shaped sliding mechanism, and a connecting plate, the fixed plate, and a connecting plate is connected with a movable support mechanism, the fixed plate; positioning seats are respectively arranged on the front side and the rear side of the underframe, holding rods are respectively horizontally arranged on the front side and the rear side of the underframe, the end parts of the two holding rods respectively horizontally and movably penetrate through the positioning seat on the corresponding side and abut against the end part of the extension beam on the corresponding side, and locking mechanisms are arranged on the positioning seat on the opposite side and the extension beam.

Optionally, the limiting mechanism comprises a left connecting plate arranged between two beams on the left side of the fixing plate, left positioning tables are symmetrically arranged on the front side and the rear side of the surface of the left connecting plate respectively, the horizontal height of the surface of the left connecting plate is lower than that of the bottom surface of the U-shaped connecting plate, and the distance between the two left positioning tables is the same as the width of the U-shaped connecting plate; the fixed plate is characterized in that a right connecting plate is arranged between two extension beams on the right side of the fixed plate, right positioning platforms are symmetrically arranged on the front side and the rear side of the surface of the right connecting plate respectively, the horizontal height of the surface of the right connecting plate is lower than that 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.

Optionally, the connecting piece includes a sleeve vertically movably penetrating through the U-shaped connecting plate, a flange abutting against the U-shaped connecting plate is arranged at the edge of the top of the sleeve along the circumferential direction of the sleeve, a plurality of locking bolts are arranged at the bottom of the fixing plate corresponding to the sleeve, each locking bolt penetrates upwards through the fixing plate and is in threaded connection with the bottom of the sleeve, and a through hole is arranged on the fixing plate corresponding to the center of the sleeve.

Optionally, the sliding seat comprises two sliding plates which are arranged on the supporting beam in parallel and horizontally symmetrical mode, the two sliding plates are connected through a plurality of connecting rods, each connecting rod is perpendicular to the sliding plates and is arranged in parallel, the connecting rods at the left end and the right end penetrate through the sliding plates horizontally respectively and are connected with longitudinal pulleys abutted to the surface of the supporting beam, a plurality of transverse pulleys abutted to the side wall of the supporting beam are arranged at the bottom of each sliding plate along the length direction of each sliding plate respectively and are connected, and seat plates are arranged on the two sliding plates.

Optionally, the bedplate includes the angle bar that sets up on the slide along slide length direction, and the interval of symmetry is equipped with a plurality of draw-in groove respectively on each angle bar vertical section, and two blocks of blocks are established the footboard between two angle bars and are passed through the card axle joint that sets up both sides around it respectively in the draw-in groove that corresponds, are equipped with the recess bottom the footboard.

Optionally, the device further comprises a set of pullback mechanism at least arranged in the rotating support, the pullback mechanism comprises an active wheel movably sleeved on a middle connecting rod, fixing rods are respectively horizontally and parallelly arranged on the left side and the right side of the U-shaped connecting plate, the two fixing rods are fixedly connected to the side wall of the supporting beam, driven wheels are respectively movably sleeved on the two fixing rods corresponding to the active wheel, an elastic rope bypasses the top of the active wheel, and the two ends of the elastic rope are respectively bound on the connecting shaft corresponding to one side after being outwards wound out from the bottom of the driven wheel corresponding to one side.

Optionally, the linkage mechanism comprises a pull rope bound on one of the connecting rods, the free end of the pull rope sequentially penetrates through the sleeve and the through hole of the fixing plate downwards and then is bound at one end of the pull belt, driving wheels are respectively arranged on the upper side and the lower side of the two vertical beams at the left end of the rowing machine body, and the other end of the pull belt is connected with the driving mechanism of the rowing machine body through the two driving wheels.

Optionally, the locking mechanism comprises a lock nose arranged on the outer side of the positioning seat, and a lock catch matched with the lock nose is arranged on the side wall of the left end of the extension beam.

Optionally, a supporting plate is arranged between the two cross beams close to one side of the underframe, jacks are symmetrically arranged on the front side and the rear side of the surface of the supporting plate, and the end parts of the holding rods can be movably inserted into the jacks on the corresponding side respectively.

Optionally, an arc cover is arranged on the support seat at the right end of the two extension beams.

The utility model adopts the above technical scheme, the advantage that has is: structural design is reasonable, and loading and unloading are convenient, collect simulation skiing, rowing function in an organic whole, realize a tractor serves two can, can switch over in a flexible way in two kinds of modes of simulation skiing or rowing, effectively improve space utilization, reduce the waste and the expenditure of purchase cost to the space, effective improve equipment's suitability satisfies fitness needs of fitness personage and vast citizen.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic top view of the structure of FIG. 1;

FIG. 3 isbase:Sub>A schematic sectional view taken along line A-A in FIG. 2;

FIG. 4 is a schematic perspective view of the underframe, the crossbeam and the extension beam;

FIG. 5 is a schematic perspective view of the rotary stand and the sliding seat;

FIG. 6 is a perspective view of the sliding seat;

FIG. 7 is a schematic perspective view of a U-shaped connecting plate;

FIG. 8 is a perspective view of the connector;

fig. 9 is a schematic perspective view of the fixing plate;

fig. 10 is a schematic perspective view of the skiing mode of the present invention;

in the figure, 1, a rowing machine body; 2. a chassis; 3. a cross beam; 4. extending the beam; 5. a first slide rail; 6. a slide rail bracket; 7. a fixing plate; 8. a second slide rail; 9. a support beam; 10. a supporting seat; 11. a connecting shaft; 12. a U-shaped connecting plate; 13. a connecting member; 1301. a sleeve; 1302. a flange; 1303. locking the bolt; 14. a sliding seat; 1401. a slide plate; 1402. a connecting rod; 1403. a longitudinal pulley; 1404. a transverse pulley; 1405. a seat plate; 14051. angle iron; 14052. a card slot; 14053. a pedal; 14054. clamping a shaft; 14055. a groove; 15. positioning seats; 16. a holding rod; 17. a left connecting plate; 18. a left positioning table; 19. a right connecting plate; 20. a right positioning table; 21. a through hole; 22. a driving wheel; 23. fixing the rod; 24. a driven wheel; 25. an elastic cord; 26. pulling a rope; 27. pulling the belt; 28. erecting a beam; 29. a driving wheel; 30. a lock nose; 31. locking; 32. a support plate; 33. a jack; 34. an arc-shaped cover; 35. and (6) positioning the bolt.

Detailed Description

In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced in other ways than those described herein, and therefore the scope of the present application is not limited by the specific embodiments disclosed below.

In addition, in the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be taken as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless specifically stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may include, for example, fixed connections, removable connections, or integral parts thereof. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be. In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

As shown in fig. 1-10, in this embodiment, a skiing and rowing machine includes a rowing machine body 1, wherein two beams 3 are horizontally and symmetrically disposed at the front and rear sides of the right end of a bottom frame 2 of the rowing machine body, extension beams 4 are disposed at the outer sides of the two beams 3 and parallel thereto, the two extension beams 4 are slidably disposed on the outer side walls of the corresponding beams 3 through first slide rails 5, slide rail brackets 6 are disposed at the inner sides of the two beams 3 and parallel thereto, fixing plates 7 are horizontally disposed on the slide rail brackets 6, second slide rails 8 are correspondingly disposed at the bottoms of the fixing plates 7 corresponding to the positions of the two slide rail brackets 6, the fixing plates 7 are slidably disposed on the slide rail brackets 6 through the two second slide rails 8, and limiting mechanisms are disposed on the beams 3 and the extension beams 4 at the left and right sides of the fixing plates 7, a rotating support is arranged above the fixed plate 7 and comprises two supporting beams 9 which are arranged in parallel, the left ends of the two supporting beams 9 are respectively clamped on the underframe 2, the right ends of the two supporting beams are respectively clamped on a supporting seat 10 at the right end of the extension beam 4, positioning bolts 35 are respectively arranged outside the two supporting seats 10, each positioning bolt 35 respectively penetrates through the supporting seat 10 at the corresponding side in a threaded manner and then abuts against the side wall of the right end of the supporting beam 9, the left end and the right end of each supporting beam 9 are respectively connected through a connecting shaft 11, a U-shaped connecting plate 12 is arranged in the middle of each supporting beam 9, the U-shaped connecting plate 12 is arranged above the fixed plate 7 and is connected with the fixed plate 7 through a connecting piece 13, a sliding seat 14 is movably clamped on the two supporting beams 9 of the rotating support, and the sliding seat 14 is connected with a driving mechanism of the rowing machine body 1 through a linkage mechanism; positioning seats 15 are respectively arranged on the front side and the rear side of the underframe 2, holding rods 16 are respectively horizontally arranged on the front side and the rear side of the underframe 2, the end parts of the two holding rods 16 respectively horizontally penetrate through the positioning seat 15 on the corresponding side and abut against the end part of the extension beam 4 on the corresponding side, and locking mechanisms are arranged on the positioning seat 15 and the extension beam 4 on the opposite side.

Optionally, the limiting mechanism comprises a left connecting plate 17 arranged between the two beams 3 on the left side of the fixing plate 7, left positioning tables 18 are symmetrically arranged on the front side and the rear side of the surface of the left connecting plate 17 respectively, the horizontal height of the surface of the left connecting plate 17 is lower than that of the bottom surface of the U-shaped connecting plate 12, and the distance between the two left positioning tables 18 is the same as the width of the U-shaped connecting plate 12; be equipped with right connecting plate 19 between two extension roof beams 4 on fixed plate 7 right side, the symmetry is equipped with right location platform 20 respectively in right connecting plate 19 surperficial front and back both sides, the level on right connecting plate 19 surface is less than the level of U type connecting plate 12 bottom surface, and the distance between two right location platforms 20 is the same with the width of U type connecting plate 12.

Optionally, the connecting member 13 includes a sleeve 1301 vertically movably penetrating through the U-shaped connecting plate 12, a flange 1302 abutting against the U-shaped connecting plate 12 is disposed at a top edge of the sleeve 1301 along a circumferential direction thereof, a plurality of locking bolts 1303 are disposed at a bottom of the fixing plate 7 corresponding to a position of the sleeve 1301, each locking bolt 1303 upwardly penetrates through the fixing plate 7 and is screwed to the bottom of the sleeve 1301, and a through hole 21 is disposed on the fixing plate 7 corresponding to a central position of the sleeve 1301.

Optionally, the sliding seat 14 includes two sliding plates 1401 symmetrically arranged on the supporting beam 9 in parallel and horizontally, the two sliding plates 1401 are connected by a plurality of connecting rods 1402, each connecting rod 1402 is perpendicular to the sliding plate 1401 and arranged in parallel, wherein the connecting rods 1402 at the left and right ends respectively penetrate through the sliding plates 1401 horizontally and are connected with longitudinal pulleys 1403 abutted on the surface of the supporting beam 9, a plurality of transverse pulleys 1404 abutted on the side wall of the supporting beam 9 are arranged at the bottom of each sliding plate 1401 along the length direction thereof, and the two sliding plates 1401 are provided with seat plates 1405.

Optionally, the seat plate 1405 comprises angle irons 14051 arranged on the sliding plate 1401 along the length direction of the sliding plate 1401, a plurality of clamping grooves 14052 are symmetrically arranged on the vertical section of each angle iron 14051 at intervals, two pedals 14053 clamped between the two angle irons 14051 are clamped in the corresponding clamping grooves 14052 through clamping shafts 14054 arranged on the front side and the rear side of the pedal 14053, and a groove 14055 is arranged at the bottom of the pedal 14053.

Optionally, the device further comprises a set of pullback mechanism at least arranged in the rotating support, the pullback mechanism comprises an active wheel 22 movably sleeved on a middle connecting rod 1402, fixing rods 23 are respectively horizontally and parallelly arranged on the left side and the right side of the U-shaped connecting plate 12, the two fixing rods 23 are both fixedly connected to the side wall of the supporting beam 9, driven wheels 24 are respectively movably sleeved on the two fixing rods 23 corresponding to the position of the active wheel 22, an elastic rope 25 bypasses the top of the active wheel 22, and the two ends of the elastic rope are respectively bound on the connecting shaft 11 on the corresponding side after being outwards wound out from the bottom of the driven wheel 24 on the corresponding side.

Optionally, the linkage mechanism comprises a pulling rope 26 bound on one of the connecting rods 1402, the free end of the pulling rope 26 sequentially passes through the sleeve 1301 and the through hole 21 of the fixing plate 7 downwards and then is bound on one end of a pulling strip 27, transmission wheels 29 are respectively arranged on the upper side and the lower side of two vertical beams 28 at the left end of the rowing machine body 1, and the other end of the pulling strip 27 is connected with the driving mechanism of the rowing machine body 1 through the two transmission wheels 29.

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

Optionally, a supporting plate 32 is disposed between the two beams 3 near one side of the base frame 2, insertion holes 33 are symmetrically disposed on the front and back sides of the surface of the supporting plate 32, and the end of each holding rod 16 can be movably inserted into the insertion hole 33 on the corresponding side. In the skiing mode, the two holding rods 16 can be pulled out from the corresponding positioning seats 15 and inserted into the insertion holes 33 of the supporting plate 32, and the rotary bracket can slide left and right by exerting force together with leg force with the aid of the hand force.

Optionally, an arc-shaped cover 34 is arranged on the support seat 10 at the right end of the two extension beams 4. On one hand, the right end of the rotating bracket can be limited by the arc-shaped cover 34, so that the rotating bracket is prevented from being separated; on the other hand, two extension beams 4 are connected together by an arc-shaped cover 34 to improve stability in the rowing mode.

In the rowing mode, a body-building person can sit on the sliding seat 14 and step on the pedals of the rowing machine body 1 with both feet, and when the pulling rod on the rowing machine body 1 is pulled, the sliding seat 14 slides left and right on the support beam 9 on the corresponding side through the longitudinal pulley 1403 and the transverse pulley 1404.

When the user needs to switch to the skiing mode, the positioning bolts 35 are screwed out one by one to be separated from the supporting seat 10, then the arc-shaped cover 34 is pulled rightwards, the two extension beams 4 slide out rightwards through the first sliding rails 5, and at the moment, the rotating bracket is separated from the supporting seat 10. Then, the fixing plate 7 is moved to the right through the second slide rail 8 on the slide rail bracket 6, and the rotating bracket is further driven to be drawn out from the chassis 2. Then, by horizontally rotating the rotating bracket, the U-shaped connecting plate 12 rotates radially along the axial line of the sleeve 1301, and the flange 1303 on the sleeve 1301 limits the U-shaped connecting plate to rotate horizontally all the time. When the rotating bracket rotates 90 degrees, the arc-shaped cover 34 is pushed reversely, the left end parts of the two extension beams abut against the positioning seat 15 on the corresponding side, and the lock noses 30 are locked by the lock catches 31, so that the position of the extension beam 4 is limited to be kept unchanged. It should be noted that, in 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 reduced, and the two left positioning tables 18 and the two right positioning tables 20 clamp the U-shaped connecting plate 12, so as to limit the rotation of the rotation bracket after 90 degrees of rotation. The fitness person takes out the two pedals 14053, turns over 180 degrees and buckles the pedals again in the clamping grooves 14052 of the angle iron 14051, and the distance between the feet can be adjusted according to the clamping grooves 14052 clamped at different positions, so that the comfort degree of different fitness persons is met. Then, the exerciser steps on the grooves 14055 of the pedals 14053 with both feet, and pulls out the two holding rods 16 from the corresponding positioning seats 15 to be clamped in the insertion holes 33 of the supporting plate 32. If the leg strength of the exerciser is high, the sliding seat 14 can be moved back and forth only by the leg strength, and the grip 16 can be clung to the ground to keep the body balance. During the forward and backward movement of the sliding seat 14, 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, and when no force is applied, the driving mechanism reversely pulls the pull belt 27 and pulls the pull rope 26 to reset, so that the sliding seat 14 is restored to the initial position; on the other hand, the pull-back mechanism provides an auxiliary pulling force for the resetting 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 forwards or backwards, so that the elastic rope 25 is deformed, and when the leg does not exert a force, the elastic rope 25 is deformed again, so that the sliding seat is reset. Its structural design is reasonable, and loading and unloading are convenient, collect simulation skiing, rowing function in an organic whole, realize a tractor serves two purposes, can switch over in a flexible way in two kinds of modes of simulation skiing or rowing, effectively improve space utilization, reduce the waste and the expenditure of purchase cost to the space, effective improve equipment's suitability satisfies fitness needs of fitness personage and vast citizen, has solved the problem that exists among the prior art.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification; to those skilled in the art, any alternative improvements or changes made to the embodiments of the present invention are all within the scope of the present invention.

The parts of the present invention not described in detail are the known techniques of those skilled in the art.

Claims (10)

1. A skiing and rowing integrated machine comprises a rowing machine body and is characterized in that cross beams are horizontally and symmetrically arranged on the front side and the rear side of the right end of an underframe of the rowing machine body respectively, extension beams arranged in parallel with the cross beams are arranged on the outer sides of the two cross beams respectively, the two extension beams are arranged on the outer side wall of the cross beam on the corresponding side in a sliding mode through first slide rails respectively, slide rail supports arranged in parallel with the two cross beams are arranged on the inner sides of the two cross beams respectively, a fixing plate is horizontally arranged on the slide rail supports, second slide rails are arranged at the bottoms of the fixing plates corresponding to the positions of the two slide rail supports respectively and correspondingly, the fixing plate is arranged on the slide rail supports in a sliding mode through the two second slide rails, limiting mechanisms are arranged on the cross beams and the extension beams on the left side and the right side of the fixing plate respectively, a rotating support is arranged above the fixing plate and comprises two support beams arranged in parallel, the left ends of the two support beams are respectively clamped on the underframe, the right ends of the two support beams are respectively clamped on the support seats on the right end of the extension beams, positioning bolts, the two support seats are respectively, the outer sides of the two support seats are respectively provided with a U-shaped connecting plate, the connecting plate, and the connecting plate is connected with a U-shaped sliding mechanism on the fixing plate, and connected with a driving mechanism of the fixing plate through a U-shaped sliding mechanism, and a connecting plate, the connecting plate is arranged on the connecting plate; positioning seats are respectively arranged on the front side and the rear side of the underframe, holding rods are respectively horizontally arranged on the front side and the rear side of the underframe, the end parts of the two holding rods respectively horizontally and movably penetrate through the positioning seat on the corresponding side, the end parts of the extension beam on the corresponding side are abutted, and locking mechanisms are arranged on the positioning seat on the opposite side and the extension beam.

2. A skiing and rowing integrated machine according to claim 1, wherein the limiting mechanism comprises a left connecting plate arranged between two beams on the left side of the fixing plate, left positioning platforms are symmetrically arranged on the front side and the rear side of the surface of the left connecting plate respectively, the horizontal height of the surface of the left connecting plate is lower than that 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; the fixed plate is characterized in that a right connecting plate is arranged between two extension beams on the right side of the fixed plate, right positioning platforms are symmetrically arranged on the front side and the rear side of the surface of the right connecting plate respectively, the horizontal height of the surface of the right connecting plate is lower than that 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 machine as claimed in claim 1 or 2, wherein the connecting member comprises a sleeve vertically movably penetrating through the U-shaped connecting plate, a flange abutting against the U-shaped connecting plate is provided at the top edge of the sleeve along the circumferential direction thereof, a plurality of locking bolts are provided at the bottom of the fixing plate corresponding to the position of the sleeve, each locking bolt is screwed at the bottom of the sleeve through the fixing plate upward, and a through hole is provided at the fixing plate corresponding to the central position of the sleeve.

4. A skiing and rowing machine according to claim 1 or 2, wherein the sliding seat comprises two sliding plates which are arranged on the supporting beam in parallel and horizontal symmetry, the two sliding plates are connected through a plurality of connecting rods, each connecting rod is perpendicular to the sliding plates and arranged in parallel, the connecting rods at the left and right ends penetrate through the sliding plates horizontally and are connected with longitudinal pulleys abutting on the surface of the supporting beam, a plurality of transverse pulleys abutting on the side wall of the supporting beam are arranged at the bottom of each sliding plate along the length direction of each sliding plate, and seat plates are arranged on the two sliding plates.

5. A skiing and rowing integrated machine according to claim 4, wherein the seat plate comprises angle bars arranged on the sliding plate along the length direction of the sliding plate, a plurality of clamping grooves are symmetrically arranged on each vertical section of the angle bars at intervals, two pedals clamped between the two angle bars are clamped in the corresponding clamping grooves through clamping shafts arranged on the front side and the rear side of the pedal, and grooves are arranged at the bottoms of the pedals.

6. A skiing and rowing integrated machine according to claim 4, further comprising a set of pulling mechanism at least disposed in the rotary support, wherein the pulling mechanism comprises a driving wheel movably sleeved on a middle connecting rod, fixing rods are respectively disposed on the left and right sides of the U-shaped connecting plate in parallel and horizontally, the two fixing rods are both fixedly connected to the side wall of the supporting beam, driven wheels are respectively movably sleeved on the two fixing rods corresponding to the driving wheel, an elastic rope bypasses the top of the driving wheel, and both ends of the elastic rope are respectively bound to the connecting shaft on the corresponding side after being respectively wound out from the bottom of the driven wheel on the corresponding side.

7. A skiing and rowing all-in-one machine according to claim 4, wherein the linkage mechanism comprises a pull rope bound on one of the connecting rods, the free end of the pull rope sequentially penetrates downwards through the sleeve and the through hole of the fixing plate and then is bound at one end of the pull rope, driving wheels are respectively arranged on the upper side and the lower side of the two vertical beams at the left end of the rowing machine body, and the other end of the pull rope is connected with the driving mechanism of the rowing machine body through the two driving wheels.

8. A skiing and rowing machine as claimed in claim 1, wherein the locking mechanism comprises a locking nose disposed outside the positioning seat, and a lock catch is disposed on the side wall of the left end of the extension beam and engaged with the locking nose.

9. A skiing and rowing machine according to claim 1, wherein a support plate is provided between two beams adjacent to one side of the underframe, insertion holes are symmetrically provided at front and rear sides of the surface of the support plate, and the end of each grip is movably inserted into the insertion hole at the corresponding side.

10. A skiing and rowing machine according to claim 1, wherein the arc cover is provided on the support base at the right end of the two extension beams.

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