CN114949818A - A ski rowing machine - Google Patents

Abstract

The invention relates to the technical field of fitness equipment, in particular to an integrated ski and rowing machine. The utility model includes a rowing machine body, transverse beams are respectively arranged symmetrically horizontally on the front and rear sides of the right end of the bottom frame of the rowing machine body, and extension beams arranged parallel to the two transverse beams are respectively provided on the outer sides, and the two extension beams pass through the first sliding The rails are slidably arranged on the outer side wall of the beam on the corresponding side, and the inner sides of the two beams are respectively provided with slide rail brackets arranged in parallel with them. The bottoms of the fixing plates are respectively provided with second sliding rails. It integrates the functions of simulating skiing and boating, and realizes dual functions in one machine. It can be flexibly switched between the two modes of simulating skiing or boating, which can effectively improve the utilization of space, reduce the waste of space and the expenditure of purchase costs, and effectively improve the equipment. The applicability of the device meets the fitness needs of fitness people and the general public, and solves the problems existing in the existing technology.

Description

A ski rowing machine

technical field

The invention relates to the technical field of fitness equipment, in particular to an integrated ski and rowing machine.

Background technique

Ski machines and rowing machines are the favorite fitness equipment for fitness people at present. Among them, the indoor ski machine is a fitness equipment that simulates the skiing action in a certain scene during the skiing process. There is a ski machine that focuses on exercising the bodybuilder's own balance ability and calf leg strength. It mainly enables the bodybuilder to exert force through the legs. , so as to exercise the balance ability and improve the coordination of the whole body during the lateral movement. The rowing machine is a fitness equipment that can exercise 80% of the muscles of the whole body, especially for the legs, waist, chest and back. These two kinds of fitness equipment have relatively simple sports functions. The ski machine can only simulate the skiing function, while the rowing machine can only simulate the rowing function. This requires a large space for the indoor space with limited space, and additional The expenditure of the purchase cost is large, which obviously cannot meet the fitness needs of the existing fitness people and the general public. How to achieve dual functions in one machine and meet the multi-functional fitness needs of fitness experts is a technical problem to be solved at present.

SUMMARY OF THE INVENTION

In order to make up for the deficiencies of the prior art, the present invention provides an integrated ski and rowing machine, which has reasonable structural design, convenient loading and unloading, integrates the functions of simulating skiing and rowing, and realizes dual functions in one machine. Flexible switching in the mode can effectively improve the space utilization rate, reduce the waste of space and the expenditure of the purchase cost, effectively improve the applicability of the equipment, meet the fitness needs of fitness people and the general public, and solve the problems existing in the existing technology.

The technical scheme adopted by the present invention for solving the above-mentioned technical problems is:

An all-in-one ski rowing machine, comprising a rowing machine body, transverse beams are respectively arranged symmetrically horizontally on the front and rear sides of the right end of the bottom frame of the rowing machine body, and extension beams arranged parallel to the outer sides of the two beams are respectively provided, and the two extended beams are respectively provided. The beams are respectively slidably arranged on the outer side wall of the beam on the corresponding side through the first sliding rail, and the inner sides of the two beams are respectively provided with sliding rail brackets arranged in parallel with them. The bottom of the fixing plate at the position of the root sliding rail bracket is respectively provided with a second sliding rail, the fixing plate is slidably arranged on the sliding rail bracket through the two second sliding rails, and there are limiters on the beams and extension beams on the left and right sides of the fixing plate A rotating support is arranged above the fixed plate, and the rotating support includes two supporting beams arranged in parallel. There are positioning bolts on the outside of the two support bases. Each positioning bolt is threaded through the support base on the corresponding side and abuts on the right end side wall of the support beam. The left and right ends of the two support beams are connected by The shafts are connected to each other, and a U-shaped connecting plate is arranged in the middle of the two supporting beams. 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 supports of the rotating bracket. On the beam, the sliding seat is connected with 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 base frame, and grip rods are horizontally provided on the front and rear sides of the base frame, and the ends of the two grip rods are respectively The parts move horizontally through the positioning seat on the corresponding side respectively, abut against the end of the extension beam on the corresponding side, and a locking mechanism is provided on the positioning seat and the extension beam on the opposite side.

Optionally, the limiting mechanism includes a left connecting plate arranged between two beams on the left side of the fixing plate, and left positioning platforms are symmetrically arranged on the front and rear sides of the surface of the left connecting plate, and the surface of the left connecting plate is horizontal. The height 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; there is a right connecting plate between the two extension beams on the right side of the fixed plate, Right positioning tables are symmetrically arranged on the front and back sides of the surface of the 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 that of the U-shaped connecting plate. same width.

Optionally, the connecting piece includes a sleeve that vertically moves through the U-shaped connecting plate, and a flange abutting on the U-shaped connecting plate is provided on the top edge of the sleeve along its circumferential direction, at the position corresponding to the sleeve. The bottom of the fixing plate is provided with several locking bolts, each locking bolt is upwardly threaded through the fixing plate and connected to 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 includes two sliding plates that are symmetrically arranged in parallel and horizontally on the support beam, and the two sliding plates are connected by a plurality of connecting rods. The connecting rods at both ends go out of the slide plate horizontally respectively and are connected with the longitudinal pulleys abutting on the surface of the support beam, and a number of transverse pulleys abutting on the side walls of the support beam are respectively provided at the bottom of each slide plate along its length direction to connect, and the two ends are connected with each other. Each skateboard is provided with a seat plate.

Optionally, the seat plate includes angle irons arranged on the sliding plate along the length of the sliding plate, and a plurality of clamping slots are arranged symmetrically spaced on the vertical sections of each angle iron, and two clamps are arranged between the two angle irons. The pedals are respectively clamped in the corresponding clamping grooves through the clamping shafts arranged on the front and rear sides of the pedals, and grooves are provided at the bottom of the pedals.

Optionally, it also includes at least a group of pull-back mechanisms arranged in the rotating support, the pull-back mechanism includes a driving wheel that is movably sleeved on a connecting rod in the middle, and the left and right sides of the U-shaped connecting plate are respectively horizontal. There are fixed rods in parallel, and the two fixed rods are fixed on the side wall of the support beam. The two fixed rods corresponding to the position of the driving wheel are respectively movably sleeved with the driven wheel, and an elastic rope goes around the top of the driving wheel, and the two After the ends are respectively wound downward from the bottom of the driven wheel on the corresponding side, they are bound to the connecting shaft on the corresponding side.

Optionally, the linkage mechanism includes a pull rope tied to one of the connecting rods, and the free end of the pull rope passes downward through the sleeve and the through hole of the fixing plate and is tied to one end of the pull belt. The upper and lower sides of the two vertical beams at the left end of the rowing machine body are respectively provided with transmission wheels, and the other end of the pulling belt is connected with the driving mechanism of the rowing machine body through the two transmission wheels.

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

Optionally, a support plate is arranged between the two beams close to one side of the chassis, and sockets are symmetrically arranged on the front and rear sides of the surface of the support plate, and the ends of each handle can be movably inserted on the corresponding side. in the socket.

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

The present invention adopts the above technical scheme, and has the advantages of reasonable structure design, convenient loading and unloading, integrating the functions of simulating skiing and rowing, realizing dual functions in one machine, and flexibly switching between the two modes of simulating skiing or rowing, effectively Improve space utilization, reduce space waste and purchase costs, effectively improve the applicability of equipment, and meet the fitness needs of fitness people and the general public.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the present invention;

Fig. 2 is the top view structure schematic diagram of Fig. 1;

Fig. 3 is A-A sectional structure schematic diagram in Fig. 2;

Fig. 4 is the three-dimensional structure schematic diagram of the base frame, the cross beam and the extension beam;

Fig. 5 is the three-dimensional structure schematic diagram of the rotating bracket and the sliding seat;

Fig. 6 is the three-dimensional structure schematic diagram of the sliding seat;

Fig. 7 is a three-dimensional schematic diagram of a U-shaped connecting plate;

FIG. 8 is a schematic three-dimensional structure diagram of a connector;

Fig. 9 is the three-dimensional structure schematic diagram of the fixed plate;

Fig. 10 is a three-dimensional schematic diagram of the ski mode of the present invention;

In the figure, 1, the rowing machine body; 2, the bottom frame; 3, the beam; 4, the extension beam; 5, the first slide rail; 6, the slide rail bracket; 7, the fixing plate; 8, the 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, slide plate; 1402, connecting rod; 1403, longitudinal pulley; 1404, transverse pulley; 1405, seat plate; 14051, angle iron; 14052, card slot; 14053, pedal; 14054, card shaft; 14055, groove; 15, positioning seat; 16 , grip rod; 17, left connecting plate; 18, left positioning table; 19, right connecting plate; 20, right positioning table; 21, through hole; 22, driving wheel; 23, fixed rod; 24, driven wheel; 25, Elastic rope; 26, pull rope; 27, pull belt; 28, vertical beam; 29, transmission wheel; 30, lock nose; 31, lock buckle; 32, support plate; 33, socket; 34, arc cover; 35 , positioning bolts.

Detailed ways

In order to clearly illustrate the technical features of the solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific details disclosed below. Example limitations.

In addition, in the description of this 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 , is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first", "second" may expressly or implicitly include one or more of that feature. In the description of the present application, "plurality" means two or more, unless otherwise expressly and specifically defined.

In this application, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , or as one. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations. In the description of this specification, description with reference to the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples", etc., mean specific features described in connection with the embodiment or example , structure, material or feature is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed 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 Figures 1-10, in this embodiment, an all-in-one ski and rowing machine includes a rowing machine body 1, and horizontally symmetrical beams 3 are provided on the front and rear sides of the right end of the bottom frame 2 of the rowing machine body. The outer side of the 3 is respectively provided with an extension beam 4 which is arranged in parallel with it, and the two extension beams 4 are respectively slidably arranged on the outer side wall of the corresponding side beam 3 through the first slide rail 5, and the inner sides of the two beams 3 are respectively provided with. The slide rail bracket 6 arranged in parallel with it is provided with a fixed plate 7 horizontally on the slide rail bracket 6, and a second slide rail 8 is correspondingly provided at the bottom of the fixed plate 7 corresponding to the position of the two slide rail brackets 6, and the fixed plate 7 passes through. The two second slide rails 8 are slidably arranged on the slide rail bracket 6 , a limit mechanism is provided on the beam 3 and the extension beam 4 on the left and right sides of the fixed plate 7 , and a rotating bracket is arranged above the fixed plate 7 . It includes two supporting beams 9 arranged in parallel. The left ends of the two supporting beams 9 are respectively clamped on the chassis 2, and their right ends are respectively clamped on the supporting bases 10 at the right ends of the extension beams 4. There are positioning bolts 35, each of which is threaded through the support seat 10 on the corresponding side and abuts on the right end side wall of the support beam 9, and the left and right ends of the two support beams 9 are respectively connected by the connecting shaft 11. A U-shaped connecting plate 12 is arranged in the middle of the two supporting beams 9. The U-shaped connecting plate 12 is arranged above the fixing plate 7 and is connected with the fixing plate 7 through the connecting piece 13. A sliding seat 14 is movably clamped on the rotating bracket On the two supporting beams 9, the sliding seat 14 is connected with the driving mechanism of the rowing machine body 1 through the linkage mechanism; the positioning seats 15 are respectively provided on the front and rear sides of the chassis 2, and the horizontal There are grip rods 16, the ends of the two grip rods 16 move horizontally through the positioning seat 15 on the corresponding side respectively, abut on the end of the extension beam 4 on the corresponding side, the positioning seat 15 and the extension beam on the opposite side 4 is provided with a locking mechanism.

Optionally, the limiting mechanism includes a left connecting plate 17 disposed between the two beams 3 on the left side of the fixing plate 7, and left positioning platforms 18 are symmetrically arranged on the front and rear sides of the surface of the left connecting plate 17. The horizontal height of the surface of the 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; two extension beams on the right side of the fixed plate 7 There is a right connecting plate 19 between 4, and a right positioning table 20 is symmetrically arranged on the front and rear sides of the surface of the right connecting plate 19. 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 .

Optionally, the connecting piece 13 includes a sleeve 1301 that vertically moves through the U-shaped connecting plate 12 , and a flange 1302 abutting on the U-shaped connecting plate 12 is provided on the top edge of the sleeve 1301 along its circumferential direction. , there are several locking bolts 1303 at the bottom of the fixing plate 7 corresponding to the position of the sleeve 1301, and each locking bolt 1303 is threaded upward through the fixing plate 7 and connected to the bottom of the sleeve 1301, and the fixing plate at the center position of the corresponding sleeve 1301 7 is provided with a through hole 21 .

Optionally, the sliding seat 14 includes two sliding plates 1401 that are symmetrically arranged on the support beam 9 in parallel and horizontally. The connecting rods 1402 at the left and right ends respectively pass out of the slide plate 1401 horizontally and are connected to the longitudinal pulleys 1403 abutting on the surface of the support beam 9. The bottom of each slide plate 1401 is respectively provided with a number of abutting on the bottom of the slide plate 1401 along its length direction. The lateral pulleys 1404 on the side walls of the support beam 9 are connected, and the two sliding plates 1401 are provided with seat plates 1405 .

Optionally, the seat plate 1405 includes angle irons 14051 arranged on the sliding plate 1401 along the length direction of the sliding plate 1401, and a plurality of clamping slots 14052 are symmetrically spaced on the vertical sections of each angle iron 14051. The pedals 14053 between the two angle irons 14051 are respectively clamped in the corresponding clamping grooves 14052 through the clamping shafts 14054 arranged on the front and rear sides thereof, and grooves 14055 are provided at the bottom of the pedals 14053 .

Optionally, it also includes at least a group of pullback mechanisms arranged in the rotating bracket, the pullback mechanism includes a driving wheel 22 that is movably sleeved on a middle link 1402, on the left and right sides of the U-shaped connecting plate 12. The sides are respectively provided with fixed rods 23 horizontally and in parallel, and the two fixed rods 23 are fixedly connected to the side walls of the support beam 9. The two fixed rods 23 corresponding to the position of the driving wheel 22 are respectively movably sleeved with the driven wheel 24, an elastic rope 25 goes around the top of the driving wheel 22, and the two ends thereof respectively go downward and outward from the bottom of the driven wheel 24 on the corresponding side, and then bind to the connecting shaft 11 on the corresponding side.

Optionally, the linkage mechanism includes a pull rope 26 bound on one of the connecting rods 1402, and the free end of the pull rope 26 passes downward through the sleeve 1301 and the through hole 21 of the fixing plate 7 in turn and is bound to the side. One end of the pulling belt 27 is respectively provided with transmission wheels 29 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 pulling belt 27 is connected to the driving mechanism of the rowing machine body 1 through the two transmission wheels 29. connected.

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

Optionally, a support plate 32 is provided between the two beams 3 close to one side of the chassis 2, and sockets 33 are symmetrically provided on the front and rear sides of the surface of the support plate 32, and the ends of each grip rod 16 can be moved respectively. It is inserted into the jack 33 on the corresponding side. In the skiing mode, the two grips 16 can be pulled out from the corresponding positioning seats 15 and inserted into the sockets 33 of the support plate 32, so that the strength of the hands and the legs can be used together. , make the swivel bracket slide left and right, this mode mainly provides hand strength assistance for those with insufficient leg strength, so that they can adapt to this skiing mode faster.

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

In the rowing mode of the device, the fitness person can sit on the sliding seat 14 and put both feet on the pedals of the rowing machine body 1. When the pulling rod on the rowing machine body 1 is pulled, the sliding seat 14 passes through The longitudinal pulley 1403 and the transverse pulley 1404 slide left and right on the support beam 9 on the corresponding side.

When it is necessary to switch to the ski mode, firstly unscrew the positioning bolts 35 one by one to separate them from the support base 10 , and then pull the arc cover 34 to the right so that the two extension beams 4 pass through the first slide rail 5 to the right Slide out to the right, at this time, the rotating bracket is disengaged from the support base 10 . Then, the fixing plate 7 is moved to the right through the second sliding rail 8 on the sliding rail bracket 6 , thereby driving the rotating bracket to be pulled out from the bottom frame 2 . Then, when the rotating bracket is rotated horizontally, the U-shaped connecting plate 12 rotates radially along the axis of the sleeve 1301, and the flange 1303 on the sleeve 1301 restricts the U-shaped connecting plate to always rotate horizontally. When the rotating bracket is rotated 90 degrees, the arc cover 34 is pushed in the opposite direction, so that the left ends of the two extension beams abut on the positioning seat 15 on the corresponding side, and the lock nose 30 is locked with the lock buckle 31, thereby The position defining the extension beam 4 remains 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 beams 3 and the right connecting plate 19 on the two extending beams 4 is continuously shortened, and the two left The stage 18 and the two right positioning stages 20 clamp the U-shaped connecting plate 12 to limit the position of the rotating bracket after it is rotated 90 degrees. Fitness people take out the two pedals 14053, turn them 180 degrees and re-buckle them into the card slots 14052 of the angle iron 14051. The distance between the feet can be adjusted according to the card slots 14052 at different positions to meet different fitness requirements. people's comfort. Then, the fitness person steps on the grooves 14055 of the pedals 14053 , pulls out the two grips 16 from the corresponding positioning seats 15 , and then snaps them into the sockets 33 of the support plate 32 . If the leg strength of the fitness person is large, the sliding seat 14 can be moved back and forth only by the strength of the legs, and the grip rod 16 can be pressed on the ground to keep the body balance. When the sliding seat 14 moves back and forth, on the one hand, the sliding seat 14 drives the pulling rope 26 to move, so that the pulling belt 27 pulls the driving mechanism on the rowing machine body 1. When the force is not exerted, the driving mechanism pulls in the opposite direction. Pull the belt 27, and pull the pull rope 26 to reset it, so that the sliding seat 14 returns to its original position; on the other hand, the pull-back mechanism provides auxiliary pulling force for the reset of the sliding seat 14. move, and then pull the elastic cord 25 to move forward or backward, so that the elastic cord 25 is deformed. It has reasonable structural design, convenient loading and unloading, integrates the functions of simulated skiing and boating, and realizes dual functions in one machine. It can be flexibly switched between the two modes of simulated skiing or boating, effectively improving space utilization, reducing space waste and purchasing. Cost expenditure, effectively improve the applicability of the equipment, meet the fitness needs of fitness people and the general public, and solve the problems existing in the existing technology.

The above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; 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 the foregoing embodiments can still be used for The technical solutions described in the examples are modified, or some or all of the technical features thereof are equivalently replaced; 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 embodiments of the present invention, and all of them should cover Within the scope of the claims and description of the present invention; for those skilled in the art, any alternative improvements or transformations made to the embodiments of the present invention fall within the protection scope of the present invention.

The parts that are not described in detail in the present invention are the well-known technologies 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 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 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 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 fixing plate, 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 clamped on the bottom frame respectively, the right ends of the two supporting seats are respectively clamped on the supporting seats at the right ends of the extension beams, positioning bolts are respectively arranged on the outer sides of the two supporting seats, each positioning bolt respectively penetrates through the supporting seat at the corresponding side in a threaded manner and then abuts against the side wall of the right end of each supporting beam, the left end and the right end of each supporting beam are respectively connected through a connecting shaft, a U-shaped connecting plate is arranged in the middle of each supporting beam, the U-shaped connecting plate is arranged above the fixed plate and is connected with the fixed plate through a connecting piece, a sliding seat is movably clamped on the two supporting beams of the rotating support, and the sliding seat is connected with a driving mechanism of the rowing machine body through a linkage mechanism; 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.

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 integrated 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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