Adjustable high-position sitting posture rowing trainer

Abstract

The invention belongs to the technical field of training equipment, and particularly relates to an adjustable high-position sitting posture rowing trainer which comprises a rack, a telescopic cylinder, an annular weight stack, a transmission mechanism and a lifting pedal. A sitting posture or a standing posture is selected for rowing training according to the personal condition of a user, and the use experience is improved; the right foot steps on the lifting pedal downwards to enable the telescopic cylinder to stretch out by a certain distance, and the end of the telescopic cylinder abuts against the ineffective annular weight stack inner hole on the outermost side to increase the load, and the left foot steps on the lifting pedal downwards to enable the telescopic cylinder to retract by a certain distance, so that the end of the telescopic cylinder is separated from the effective annular weight stack inner hole on the outermost side to reduce the load. A user can increase or reduce the load without leaving from the cushion, so that the convenience of the rowing trainer is improved; when a user performs maximum load training, the load can be increased or reduced without leaving from the cushion in a group of training, so that the training interruption time is greatly shortened, and the training effect is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of training equipment, and specifically relates to an adjustable high-position seated rowing trainer. Background Art

[0002] Rowing training is one of the common methods for exercising the back muscle group, which can exercise the entire back muscle group, including the latissimus dorsi, trapezius, rhomboid muscles, etc., and can also exercise the muscle strength of the upper arm and stabilize the core muscle group. It is a relatively simple and easy-to-learn training action.

[0003] Currently, the general rowing trainers are seated rowing trainers, usually equipped with a seat cushion, barbell plates, pulling arms, handles, etc. The user sits on the seat cushion and pulls the handle back and forth to drive the pulling arms for rowing training. For some obese people, due to excessive abdominal fat, sitting training will squeeze the abdomen, causing discomfort in the abdomen and reducing the user experience. Summary of the Invention

[0004] In order to make up for the deficiencies of the prior art, the present invention provides an adjustable high-position seated rowing trainer. The present invention mainly solves the problem that for some obese people, due to excessive abdominal fat, sitting training will squeeze the abdomen, causing discomfort in the abdomen and reducing the user experience in the current rowing trainer.

[0005] The technical solution adopted by the present invention to solve its technical problems is: The present invention provides an adjustable high-position seated rowing trainer, including a frame, a telescopic cylinder, annular counterweight plates, a transmission mechanism, and a lifting pedal;

[0006] Pulling arms are symmetrically arranged on both sides of the frame; the pulling arms are rotatably connected to the frame; the upper end of the pulling arm is connected with a handle; the lower end of the pulling arm is connected with a barbell plate hanging rod; the lower end of the frame is connected with a first foot pedal; a second foot pedal is connected to the frame; a backrest is connected to the upper end of the frame; a connecting seat is connected to the frame; a seat cushion is rotatably connected to the connecting seat; a first locking mechanism is arranged on the connecting seat; the first locking mechanism is used to fix the position of the seat cushion;

[0007] The telescopic cylinder is slidably connected to the pulling arm; a base is fixedly connected to the frame; receiving grooves are symmetrically arranged on the base; the annular counterweight plates are arranged at intervals in the receiving grooves;

[0008] The transmission mechanism is connected to the frame; the lifting pedals are respectively slidably connected to both sides of the frame; the lifting pedals are used to drive the transmission mechanism to work; the transmission mechanism is used to drive the telescopic cylinder to move at a fixed distance.

[0009] Preferably, the transmission mechanism includes a rack, a first rotating shaft, a first gear, a second rotating shaft, a third rotating shaft, a fourth rotating shaft, a driving member, and a first elastic member;

[0010] The rack is fixedly connected to the lifting pedal; the first rotating shafts are rotatably connected to both sides of the frame; the first gear is connected to the first rotating shaft;

[0011] The second rotating shaft is rotatably connected to the frame; one of the first rotating shafts is driven by a first transmission component to the second rotating shaft; the other first rotating shaft is driven by a second transmission component to the second rotating shaft;

[0012] The third rotating shaft is rotatably connected to the base; the third rotating shaft is driven by a third transmission component to the second rotating shaft;

[0013] The fourth rotating shaft is rotatably connected to the pulling arm; a spiral groove is provided on the fourth rotating shaft; the fourth rotating shaft abuts against the inside of the telescopic cylinder; the driving member is connected to the inner wall of the telescopic cylinder; the driving member abuts against the spiral groove; the fourth rotating shaft is driven by a fourth transmission component to the third rotating shaft;

[0014] The lifting pedal is connected to the frame by the first elastic member.

[0015] Preferably, the first gear is connected to the first rotating shaft by a fifth transmission component; the fifth transmission component includes a first sliding member, a second elastic member, and a first connecting member;

[0016] Two first grooves are provided on the inner hole wall of the first gear; a first connecting groove is provided on the first rotating shaft; the first sliding member is slidably connected to the first connecting groove; one end face of the first sliding member is connected to the bottom surface of the first connecting groove by the second elastic member; the other end of the first sliding member is connected to the first connecting member; the first connecting member abuts against one of the first grooves;

[0017] The first rotating shaft is connected to the frame by a sixth transmission component; the sixth transmission component includes a second sliding member, a third elastic member, and a second connecting member;

[0018] Second grooves are symmetrically provided on the first rotating shaft; a second connecting groove is provided on the frame; the second sliding member is slidably connected to the second connecting groove; one end face of the second sliding member is connected to the bottom surface of the second connecting groove by the third elastic member; the other end of the second sliding member is connected to the second connecting member; the second connecting member abuts against one of the second grooves.

[0019] Preferably, the fourth transmission assembly includes a seventh gear and an eighth gear;

[0020] The seventh gear is connected to the third rotating shaft; the eighth gear is fixedly connected to the fourth rotating shaft.

[0021] Preferably, the fourth transmission assembly further includes a third sliding member, a fourth elastic member, and a third connecting member;

[0022] A seventh groove is provided on the inner hole wall of the seventh gear; the seventh gear is rotatably connected to the third rotating shaft; a third connecting groove is provided on the third rotating shaft; the third sliding member is slidably connected in the third connecting groove; one end face of the third sliding member is connected to the bottom surface of the third connecting groove through the fourth elastic member; the other end of the third sliding member is connected to the third connecting member; the third connecting member abuts in the seventh groove;

[0023] A cylindrical structure is provided on the pull arm; an avoidance groove is provided on the side wall of the cylindrical structure; a first limiting groove and a second limiting groove are provided at intervals on the cylindrical structure; a sliding rod is slidably connected in the cylindrical structure; one end of the sliding rod is fixedly connected with a fixing member; the other end of the sliding rod is rotatably connected with a connecting rod; a limiting structure is provided on the connecting rod.

[0024] Preferably, one end of the telescopic cylinder is closed; a fourth connecting groove is provided at the closed end of the telescopic cylinder; a fourth sliding member is slidably connected in the fourth connecting groove; a fifth elastic member is provided between one end face of the fourth sliding member and the bottom surface of the fourth connecting groove; a convex structure is provided at the other end of the fourth sliding member; a fourth groove is provided on the side wall of the inner hole of the annular counterweight.

[0025] Preferably, the first transmission assembly includes a second gear and a third gear; the second gear is fixedly connected to the first rotating shaft; the third gear is fixedly connected to the second rotating shaft;

[0026] The second transmission assembly includes a fourth gear, a fifth gear, and a sixth gear; the fourth gear is fixedly connected to the first rotating shaft; the fifth gear is rotatably connected to the frame; the sixth gear is fixedly connected to the second rotating shaft.

[0027] Preferably, a fifth groove is provided on the outer side wall of the annular counterweight; limiting protrusions are provided at intervals on the inner wall of the containing groove.

[0028] Preferably, the first foot pedal is connected to the frame through a first adjustment mechanism; the first adjustment mechanism is used to adjust the height of the first foot pedal; the connecting seat is slidably connected to the frame; a second locking mechanism is provided on the connecting seat; the second locking mechanism is used to fix the position of the connecting seat; a sliding seat is connected to the frame; a third locking mechanism is connected to the frame; the third locking mechanism is used to fix the sliding seat; the cushion is rotatably connected to the sliding seat.

[0029] Preferably, both the second connecting member and the third connecting member are spherical; the first connecting member is cylindrical; the first connecting member is rotatably connected to the first sliding member; the driving member is spherical; a spherical groove is provided on the inner wall of the telescopic cylinder; the driving member is connected in the spherical groove.

[0030] The beneficial effects of the present invention are as follows:

[0031] 1. In the present invention, the rowing training can be carried out in a sitting position or a standing position according to the personal situation of the user, improving the applicability of the rowing trainer and the use experience; when the user steps on the lifting pedal with the right foot, the telescopic cylinder extends a certain distance, and the end of the telescopic cylinder abuts against the inner hole of the outermost ineffective annular counterweight sheet, so that one more effective annular counterweight sheet is added to the telescopic cylinder, increasing the load; when the user steps on the lifting pedal with the left foot, the telescopic cylinder retracts a certain distance, and the end of the telescopic cylinder disengages from the inner hole of the outermost effective annular counterweight sheet, so that one less effective annular counterweight sheet is on the telescopic cylinder, reducing the load. The user can increase or decrease the load without leaving the seat, improving the convenience of the rowing trainer; when the user is performing maximum load training, the user can increase or decrease the load without leaving the seat during a set of training, greatly shortening the interruption time of training and improving the training effect.

[0032] 2. In the present invention, at the initial stage when the user steps on the lifting pedal with the right foot, the lifting pedal drives the rack to move downward, so that the rack meshes with the first gear. When the user continues to step on the lifting pedal with the right foot, the rack drives the first gear to rotate, drives the first rotating shaft to rotate, drives the fourth rotating shaft to rotate forward, drives the telescopic cylinder to extend outwards, and the moving distance of the driving member is equal to the thickness of one annular counterweight sheet, so that the end of the telescopic cylinder abuts against the inner hole of the outermost ineffective annular counterweight sheet, and one more effective annular counterweight sheet is added to the telescopic cylinder; at the initial stage when the user steps on the lifting pedal with the left foot, the lifting pedal drives the rack to move downward, so that the rack meshes with the first gear. When the user continues to step on the lifting pedal with the left foot, the rack drives the first gear to rotate, drives the fourth rotating shaft to rotate reversely, drives the telescopic cylinder to retract inwards. When the lifting pedal moves to the lowest position, the moving distance of the driving member is equal to the thickness of one annular counterweight sheet, so that the end of the telescopic cylinder disengages from the inner hole of the outermost effective annular counterweight sheet, and one less effective annular counterweight sheet is on the telescopic cylinder.

[0033] 3. In the process of the lifting pedal driving the rack to move downward in the present invention, when the first gear rotates, it drives the first rotating shaft to rotate, causing the second connecting member to disengage from one of the second grooves, enabling the first rotating shaft to form a rotating connection with the frame, and causing the first rotating shaft to rotate half a turn; in the process of the lifting pedal driving the rack to move upward, when the first gear rotates, the first rotating shaft forms a rotating connection with the first gear, and the first rotating shaft remains stationary when the first gear rotates. When the lifting pedal moves upward, it prevents the fourth rotating shaft from rotating and prevents the telescopic cylinder from moving. After adding effective annular counterweight pieces, it prevents the telescopic cylinder from disengaging from the inner hole of the newly added annular counterweight piece. After reducing the effective annular counterweight pieces, it prevents the telescopic cylinder from touching the inner hole of the just removed annular counterweight piece again, improving the reliability of the transmission mechanism.

[0034] 4. When the pull arm rotates in the present invention, the eighth gear separates from the seventh gear, preventing the left foot from accidentally touching the lifting pedal and causing the telescopic cylinder to retract, preventing the effective annular counterweight pieces on the telescopic cylinder from falling off, preventing the right foot from accidentally touching the lifting pedal and causing the telescopic cylinder to extend, and preventing the end of the telescopic cylinder from touching the invalid annular counterweight piece and being unable to move downward when the pull arm moves downward, improving the reliability of the rowing trainer.

[0035] 5. During the process of the user performing rowing training with one hand, before increasing or decreasing the effective annular counterweight pieces, the sliding rod makes the fixing member touch the eighth gear to fix the eighth gear. When the user increases or decreases the annular counterweight pieces on the training side, the eighth gear on the idle hand side remains stationary, keeping the seventh gear stationary, causing the third connecting member to disengage from the seventh groove, and enabling the seventh gear on the idle hand side to form a rotating connection with the third rotating shaft. When increasing or decreasing the annular counterweight pieces on the training side, it prevents the annular counterweight pieces on the idle hand side from being increased or decreased synchronously. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The present invention will be further described below with reference to the accompanying drawings.

[0037] Figure 1 is a schematic diagram of the overall structure of the rowing trainer in the present invention;

[0038] Figure 2 is a schematic diagram of the structure of the first foot pedal in the present invention;

[0039] Figure 3 is a schematic diagram of the structure of the first transmission assembly in the present invention;

[0040] Figure 4 is a schematic diagram of the structure of the second transmission assembly in the present invention;

[0041] Figure 5 is a schematic diagram of the structure of the transmission mechanism in the present invention;

[0042] Figure 6 is the structural schematic diagram of the cylindrical structure in the present invention;

[0043] Figure 7 is Figure 6 the partial enlarged view of A in

[0044] Figure 8 is Figure 6 the partial enlarged view of B in

[0045] Figure 9 is Figure 6 the partial enlarged view of C in

[0046] Figure 10 is the structural schematic diagram of the first gear in the present invention;

[0047] Figure 11 is the structural schematic diagram of the telescopic cylinder in the present invention;

[0048] Figure 12 is Figure 11 the partial enlarged view of D in

[0049] Figure 13 is Figure 11 the partial enlarged view of E in

[0050] Figure 14 is the structural schematic diagram of the first rotating shaft in the present invention;

[0051] Figure 15 is Figure 14 the partial enlarged view of F in

[0052] Figure 16 is the structural schematic diagram of the base in the present invention;

[0053] Figure 17 is the structural schematic diagram of the fourth rotating shaft in the present invention;

[0054] Figure 18 is the structural schematic diagram of the sliding rod in the present invention;

[0055] Figure 19 is the structural schematic diagram of the annular counterweight in the present invention;

[0056] In the figure: frame 1, second connecting groove 101, pulling arm 11, cylindrical structure 111, avoidance groove 1111, first limiting groove 1112, second limiting groove 1113, handle 12, barbell plate hanging rod 13, first footrest 14, second footrest 15, cushion 16, connecting seat 17, seat cushion 18, first locking mechanism 19, telescopic cylinder 2, fourth sliding member 22, convex structure 221, fifth elastic member 23, annular counterweight 3, fourth groove 31, fifth groove 32, transmission mechanism 4, rack 41, first rotating shaft 42, first connecting groove 421, second groove 422, first gear 43, first groove 431, second rotating shaft 44, third rotating shaft 45, third connecting groove 451, fourth rotating shaft 46, spiral groove 461, driving member 47, first elastic member 48, lifting pedal 5, base 6, containing groove 61, limiting protrusion 611, first transmission assembly 71, second gear 711, third gear 712, second transmission assembly 72, fourth gear 721, fifth gear 722, sixth gear 723, third transmission assembly 73, fourth transmission assembly 74, seventh gear 741, eighth gear 742, third sliding member 743, fourth elastic member 744, third connecting member 745, sliding rod 746, fixing member 747, connecting rod 748, limiting structure 7481, fifth transmission assembly 75, first sliding member 751, second elastic member 752, first connecting member 753, sixth transmission assembly 76, second sliding member 761, third elastic member 762, second connecting member 763, first adjustment mechanism 81, second locking mechanism 82, sliding seat 83, third locking mechanism 84. Detailed implementation manners

[0057] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0058] As Figure 1 - Figure 19 shown, an adjustable high-position sitting rowing trainer includes a frame 1, a telescopic cylinder 2, an annular counterweight 3, a transmission mechanism 4 and a lifting pedal 5;

[0059] Pulling arms 11 are symmetrically arranged on both sides of the frame 1; the pulling arms 11 are rotatably connected to the frame 1; a handle 12 is connected to the upper end of the pulling arm 11; a barbell plate hanging rod 13 is connected to the lower end of the pulling arm 11; a first footrest 14 is connected to the lower end of the frame 1; a second footrest 15 is connected to the frame 1; a cushion 16 is connected to the upper end of the frame 1; a connecting seat 17 is connected to the frame 1; a seat cushion 18 is rotatably connected to the connecting seat 17; a first locking mechanism 19 is provided on the connecting seat 17; the first locking mechanism 19 is used to fix the position of the seat cushion 18;

[0060] A telescopic cylinder 2 is slidably connected to the pulling arm 11; a base 6 is fixedly connected to the frame 1; placing grooves 61 are symmetrically arranged on the base 6; annular counterweight plates 3 are arranged at intervals in the placing grooves 61;

[0061] A transmission mechanism 4 is connected to the frame 1; lifting pedals 5 are slidably connected to both sides of the frame 1 respectively; the lifting pedals 5 are used to drive the transmission mechanism 4 to work; the transmission mechanism 4 is used to drive the telescopic cylinder 2 to move at a fixed distance.

[0062] During operation, the user first places barbell plates on the barbell plate hanging rod 13. When the user chooses a standing posture for training, the user releases the fixation of the seat cushion 18 by the first locking mechanism 19, turns the seat cushion 18 downward so that the seat cushion 18 rotates to the vertical position. Subsequently, the user stands on the first foot pedal 14 with both feet, leans the chest against the cushion 16, and holds the handle 12 with both hands and pulls backward to perform rowing training. When the user chooses a sitting posture for training, the user turns the seat cushion 18 upward so that the seat cushion 18 rotates to the horizontal position. Subsequently, the position of the seat cushion 18 is fixed by the first locking mechanism 19 to keep the seat cushion 18 stationary. Then the user sits on the seat cushion 18, steps on the second foot pedal 15 with both feet, leans the chest against the cushion 16, and holds the handle 12 with both hands and pulls backward to perform rowing exercise; The user can choose a sitting or standing posture for rowing training according to personal circumstances, improving the applicability of the rowing trainer and the usage experience;

[0063] When the user wants to increase the load during a certain set of training, when the pulling arm 11 rotates to the lowest position, stop pulling the pulling arm 11. At this time, when the telescopic cylinder 2 moves to the lowest position following the pulling arm 11, and the axis of the telescopic cylinder 2 coincides with the axis of the ineffective annular counterweight 3 in the containing groove 61 (the annular counterweight 3 on the telescopic cylinder 2 is the effective annular counterweight 3, and the annular counterweight 3 in the containing groove 61 is the ineffective annular counterweight 3), the effective annular counterweight 3 on the telescopic cylinder 2 abuts against the inner wall of the containing groove 61, and the effective annular counterweight 3 at the end of the telescopic cylinder 2 fits against the outermost ineffective annular counterweight 3 in the containing groove 61. Then, step on the lifting pedal 5 with the right foot to make the lifting pedal 5 slide downward. The lifting pedal 5 makes the transmission mechanism 4 work, and the transmission mechanism 4 drives the telescopic cylinder 2 to move, so that the telescopic cylinder 2 extends a certain distance. At this time, the effective annular counterweight 3 remains stationary, and the end of the telescopic cylinder 2 abuts against the inner hole of the outermost ineffective annular counterweight 3, so that one more effective annular counterweight 3 is added to the telescopic cylinder 2 to increase the load. When the user wants to reduce the load during a certain set of training, when the pulling arm 11 rotates to the lowest position, stop pulling the pulling arm 11. At this time, when the telescopic cylinder 2 moves to the lowest position following the pulling arm 11, the effective annular counterweight 3 on the telescopic cylinder 2 abuts against the inner wall of the containing groove 61, and the effective annular counterweight 3 at the end of the telescopic cylinder 2 fits against the outermost ineffective annular counterweight 3 in the containing groove 61. Then, step on the lifting pedal 5 with the left foot to make the lifting pedal 5 slide downward. The lifting pedal 5 makes the transmission mechanism 4 work, and the transmission mechanism 4 drives the telescopic cylinder 2 to move, so that the telescopic cylinder 2 retracts a certain distance, so that the end of the telescopic cylinder 2 disengages from the inner hole of the outermost effective annular counterweight 3, so that one less effective annular counterweight 3 is on the telescopic cylinder 2 to reduce the load. The user can increase or reduce the load without leaving the seat 18, improving the convenience of the rowing trainer; when the user is performing maximum load training, the user can increase or reduce the load without leaving the seat 18 during a set of training, greatly shortening the time of interrupted training and improving the training effect.

[0064] The transmission mechanism 4 includes a rack 41, a first rotating shaft 42, a first gear 43, a second rotating shaft 44, a third rotating shaft 45, a fourth rotating shaft 46, a driving member 47 and a first elastic member 48;

[0065] The rack 41 is fixedly connected to the lifting pedal 5; both sides of the frame 1 are rotatably connected to the first rotating shaft 42; the first gear 43 is connected to the first rotating shaft 42;

[0066] The second rotating shaft 44 is rotatably connected to the frame 1; a first transmission component 71 is used for transmitting between one of the first rotating shafts 42 and the second rotating shaft 44; a second transmission component 72 is used for transmitting between the other first rotating shaft 42 and the second rotating shaft 44;

[0067] A third rotating shaft 45 is rotatably connected to the base 6; the third rotating shaft 45 is driven by a third transmission assembly 73 between the second rotating shaft 44;

[0068] A fourth rotating shaft 46 is rotatably connected to the pulling arm 11; a spiral groove 461 is provided on the fourth rotating shaft 46; the fourth rotating shaft 46 abuts against the telescopic cylinder 2; a driving member 47 is connected to the inner wall of the telescopic cylinder 2; the driving member 47 abuts against the spiral groove 461; the fourth rotating shaft 46 is driven by a fourth transmission assembly 74 between the third rotating shaft 45;

[0069] The lifting pedal 5 is connected to the frame 1 by a first elastic member 48.

[0070] At the initial stage when the user steps on the lifting pedal 5 with the right foot downward, the lifting pedal 5 drives the rack 41 to move downward, causing the rack 41 to engage with the first gear 43. The right foot continues to step on the lifting pedal 5 downward, the rack 41 drives the first gear 43 to rotate, drives the first rotating shaft 42 to rotate, drives the second rotating shaft 44 to rotate forward through the first transmission assembly 71, drives the third rotating shaft 45 to rotate forward through the third transmission assembly 73, drives the fourth rotating shaft 46 to rotate forward through the fourth transmission assembly 74. The inner wall of the spiral groove 461 generates a thrust on the driving member 47, causing the driving member 47 to move in the axial direction of the fourth rotating shaft 46, driving the telescopic cylinder 2 to extend outward. When the lifting pedal 5 moves to the lowest position, the first gear 43 rotates half a turn, the first rotating shaft 42 rotates half a turn, the second rotating shaft 44 rotates half a turn, the third rotating shaft 45 and the fourth rotating shaft 46 rotate one turn, and the distance that the driving member 47 moves is equal to the thickness of an annular counterweight 3, causing the end of the telescopic cylinder 2 to abut against the inner hole of the outermost ineffective annular counterweight 3, increasing the effective annular counterweight 3 on the telescopic cylinder 2 by one (when the lifting pedal 5 moves to the lowest position, the right foot leaves the lifting pedal 5, and then under the elastic force of the first elastic member 48, the lifting pedal 5 moves upward to the highest position);

[0071] At the initial stage when the user steps down on the lifting pedal 5 with the left foot, the lifting pedal 5 drives the rack 41 to move downward, causing the rack 41 to engage with the first gear 43. The user continues to step down on the lifting pedal 5 with the left foot, the rack 41 drives the first gear 43 to rotate, driving the first rotating shaft 42 to rotate. Through the second transmission assembly 72, the second rotating shaft 44 is driven to rotate in the reverse direction. Through the third transmission assembly 73, the third rotating shaft 45 is driven to rotate in the reverse direction. Through the fourth transmission assembly 74, the fourth rotating shaft 46 is driven to rotate in the reverse direction. The inner wall of the spiral groove 461 generates a thrust on the driving member 47, causing the driving member 47 to move in the axial direction of the fourth rotating shaft 46, driving the telescopic cylinder 2 to retract inward. When the lifting pedal 5 moves to the lowest position, the first gear 43 rotates half a turn, the first rotating shaft 42 rotates half a turn, the second rotating shaft 44 rotates half a turn, the third rotating shaft 45 and the fourth rotating shaft 46 rotate one turn, and the distance that the driving member 47 moves is equal to the thickness of one annular counterweight piece 3, causing the end of the telescopic cylinder 2 to disengage from the inner hole of the outermost effective annular counterweight piece 3, reducing the number of effective annular counterweight pieces 3 on the telescopic cylinder 2 by one (when the lifting pedal 5 moves to the lowest position, the left foot leaves the lifting pedal 5, and then under the elastic force of the first elastic member 48, the lifting pedal 5 moves upward to the highest position).

[0072] The first gear 43 and the first rotating shaft 42 are connected through a fifth transmission assembly 75; the fifth transmission assembly 75 includes a first sliding member 751, a second elastic member 752, and a first connecting member 753;

[0073] There are two first grooves 431 on the inner hole wall of the first gear 43; there is a first connection groove 421 on the first rotating shaft 42; the first sliding member 751 is slidably connected in the first connection groove 421; one end face of the first sliding member 751 and the bottom surface of the first connection groove 421 are connected through the second elastic member 752; the other end of the first sliding member 751 is connected to the first connecting member 753; the first connecting member 753 abuts in one of the first grooves 431;

[0074] The first rotating shaft 42 and the frame 1 are connected through a sixth transmission assembly 76; the sixth transmission assembly 76 includes a second sliding member 761, a third elastic member 762, and a second connecting member 763;

[0075] The first rotating shaft 42 is symmetrically provided with second grooves 422; there is a second connection groove 101 on the frame 1; the second sliding member 761 is slidably connected in the second connection groove 101; one end face of the second sliding member 761 and the bottom surface of the second connection groove 101 are connected through the third elastic member 762; the other end of the second sliding member 761 is connected to the second connecting member 763; the second connecting member 763 abuts in one of the second grooves 422.

[0076] During the process of the lifting pedal 5 driving the rack 41 to move downward, when the first gear 43 rotates, the inner wall of the first groove 431 exerts a force on the first connecting member 753, generating a driving force for the rotation of the first rotating shaft 42. At this time, the second connecting member 763 abuts against a second groove 422, and the second connecting member 763 exerts a resistance on the first rotating shaft 42, and the resistance is less than the driving force for rotation, driving the first rotating shaft 42 to rotate, causing the second connecting member 763 to disengage from a second groove 422, enabling the first rotating shaft 42 to form a rotational connection with the frame 1, and causing the first rotating shaft 42 to rotate half a turn (at this time, the second connecting member 763 abuts against another second groove 422);

[0077] During the process of the lifting pedal 5 driving the rack 41 to move upward, when the first gear 43 rotates, the inner wall of the first groove 431 exerts a force on the first connecting member 753, generating a driving force for the rotation of the first rotating shaft 42. At this time, the second connecting member 763 abuts against a second groove 422, and the second connecting member 763 exerts a resistance on the first rotating shaft 42, and the resistance is greater than the driving force for rotation, hindering the rotation of the first rotating shaft 42, causing the first connecting member 753 to slide along the inner wall of the first groove 431, causing the first connecting member 753 to retract into the first connecting groove 421, causing the first connecting member 753 to disengage from the first groove 431, enabling the first rotating shaft 42 to form a rotational connection with the first gear 43, keeping the first rotating shaft 42 stationary when the first gear 43 rotates (and when the first rotating shaft 42 rotates half a turn, the first connecting member 753 abuts against another first groove 431), preventing the fourth rotating shaft 46 from rotating when the lifting pedal 5 moves upward, preventing the telescopic cylinder 2 from moving when the lifting pedal 5 moves upward, preventing the telescopic cylinder 2 from disengaging from the inner hole of the newly added annular counterweight 3 after adding the effective annular counterweight 3, and preventing the telescopic cylinder 2 from abutting against the inner hole of the just removed annular counterweight 3 again after reducing the effective annular counterweight 3, improving the reliability of the operation of the transmission mechanism 4.

[0078] The fourth transmission component 74 includes a seventh gear 741 and an eighth gear 742;

[0079] The seventh gear 741 is connected to the third rotating shaft 45; the eighth gear 742 is fixedly connected to the fourth rotating shaft 46.

[0080] When the pulling arm 11 rotates to the lowest position, the eighth gear 742 and the seventh gear 741 are engaged. When the third rotating shaft 45 rotates, it drives the seventh gear 741 to rotate, drives the eighth gear 742 to rotate, drives the fourth rotating shaft 46 to rotate, drives the telescopic cylinder 2 to move, and increases or decreases the effective annular counterweight 3 on the telescopic cylinder 2;

[0081] When the pulling arm 11 rotates, the eighth gear 742 is separated from the seventh gear 741, preventing the left foot from accidentally touching the lifting pedal 5 to cause the telescopic cylinder 2 to retract, preventing the effective annular counterweight piece 3 on the telescopic cylinder 2 from falling off, preventing the right foot from accidentally touching the lifting pedal 5 to cause the telescopic cylinder 2 to extend, and preventing the end of the telescopic cylinder 2 from abutting against the ineffective annular counterweight piece 3 and being unable to move downward when the pulling arm 11 moves downward, thus improving the reliability of the rowing trainer.

[0082] The fourth transmission assembly 74 further includes a third sliding member 743, a fourth elastic member 744 and a third connecting member 745;

[0083] A seventh groove is provided on the inner hole wall of the seventh gear 741; the seventh gear 741 is rotatably connected to the third rotating shaft 45; a third connecting groove 451 is provided on the third rotating shaft 45; the third sliding member 743 is slidably connected in the third connecting groove 451; one end face of the third sliding member 743 is connected to the bottom surface of the third connecting groove 451 through the fourth elastic member 744; the other end of the third sliding member 743 is connected to the third connecting member 745; the third connecting member 745 abuts in the seventh groove;

[0084] A cylindrical structure 111 is provided on the pulling arm 11; an avoidance groove 1111 is provided on the side wall of the cylindrical structure 111; a first limiting groove 1112 and a second limiting groove 1113 are provided on the cylindrical structure 111 at intervals; a sliding rod 746 is slidably connected in the cylindrical structure 111; one end of the sliding rod 746 is fixedly connected with a fixing member 747; the other end of the sliding rod 746 is rotatably connected with a connecting rod 748; a limiting structure 7481 is provided on the connecting rod 748.

[0085] During the process of the user rowing with both hands, the limiting structure 7481 abuts in the first limiting groove 1112. At this time, the fixing member 747 is far away from the eighth gear 742. When increasing or decreasing the effective annular counterweight piece 3, the third rotating shaft 45 drives the third connecting member 745 to rotate. At this time, the third connecting member 745 abuts in the seventh groove, driving the seventh gear 741 to rotate, driving the eighth gear 742 to rotate, driving the fourth rotating shaft 46 to rotate, and increasing or decreasing the annular counterweight piece 3;

[0086] During the process of the user performing rowing training with one hand, before increasing or decreasing the effective annular counterweight 3, the idle hand rotates the connecting rod 748 to disengage the limiting structure 7481 from the first limiting groove 1112, and moves the limiting structure 7481 to the connection between the first limiting groove 1112 and the avoidance groove 1111. Subsequently, the connecting rod 748 is pushed downward to make the limiting structure 7481 slide in the avoidance groove 1111, and the limiting structure 7481 is moved to the connection between the second limiting groove 1113 and the avoidance groove 1111. Subsequently, the connecting rod 748 is driven to make the limiting structure 7481 abut against the second limiting groove 1113. When the connecting rod 748 moves, it drives the sliding rod 746 (the sliding rod 746 does not rotate) to move. When the limiting structure 7481 abuts against the second limiting groove 1113, the sliding rod 746 makes the fixing member 747 abut against the eighth gear 742 (the fixing member 747 is provided with an internal gear structure on the side close to the eighth gear 742, and the fixing member 747 on the training side is far from the eighth gear 742), fixing the eighth gear 742. When the user increases or decreases the annular counterweight 3 on the training side, the eighth gear 742 on the idle hand side remains stationary, keeping the seventh gear 741 stationary, disengaging the third connecting member 745 from the seventh groove, and forming a rotational connection between the seventh gear 741 on the idle hand side and the third rotating shaft 45, preventing the annular counterweight 3 on the idle hand side from being synchronously increased or decreased when the annular counterweight 3 on the training side is increased or decreased.

[0087] One end of the telescopic cylinder 2 is closed; a fourth connecting groove is provided at the closed end of the telescopic cylinder 2; a fourth sliding member 22 is slidably connected in the fourth connecting groove; a fifth elastic member 23 is provided between the end face of one end of the fourth sliding member 22 and the bottom surface of the fourth connecting groove; a convex structure 221 is provided at the other end of the fourth sliding member 22; a fourth groove 31 is provided on the side wall of the inner hole of the annular counterweight 3.

[0088] The convex structure 221 abuts against the fourth groove 31, preventing the annular counterweight 3 from moving and preventing the annular counterweight 3 from falling off the telescopic cylinder 2 (when the telescopic cylinder 2 moves in the inner hole of the annular counterweight 3, the inner wall of the fourth groove 31 exerts a force on the convex structure 221, causing the fourth sliding member 22 to move into the fourth connecting groove).

[0089] The first transmission assembly 71 includes a second gear 711 and a third gear 712; the second gear 711 is fixedly connected to the first rotating shaft 42; the third gear 712 is fixedly connected to the second rotating shaft 44;

[0090] The second transmission assembly 72 includes a fourth gear 721, a fifth gear 722 and a sixth gear 723; the fourth gear 721 is fixedly connected to the first rotating shaft 42; the fifth gear 722 is rotatably connected to the frame 1; the sixth gear 723 is fixedly connected to the second rotating shaft 44.

[0091] When the first rotating shaft 42 on the right side of the user rotates, it drives the second gear 711 to rotate, drives the third gear 712 to rotate, and drives the second rotating shaft 44 to rotate forward; when the first rotating shaft 42 on the left side of the user rotates, it drives the fourth gear 721 to rotate, drives the fifth gear 722 to rotate, drives the sixth gear 723 to rotate, and drives the second rotating shaft 44 to rotate in the reverse direction.

[0092] A fifth groove 32 is provided on the outer side wall of the outer ring of the annular counterweight 3; limiting protrusions 611 are provided at intervals on the inner wall of the containing groove 61.

[0093] The limiting protrusion 611 abuts against the inside of the fifth groove 32 to prevent the annular counterweight 3 in the containing groove 61 from tipping over and improve the reliability of the rowing trainer.

[0094] The first foot pedal 14 is connected to the frame 1 through a first adjustment mechanism 81; the first adjustment mechanism 81 is used to adjust the height of the first foot pedal 14; the connecting seat 17 is slidably connected to the frame 1; a second locking mechanism 82 is provided on the connecting seat 17; the second locking mechanism 82 is used to fix the position of the connecting seat 17; a sliding seat 83 is connected to the frame 1; a third locking mechanism 84 is connected to the frame 1; the third locking mechanism 84 is used to fix the sliding seat 83; a backrest 16 is rotatably connected to the sliding seat 83.

[0095] The height of the first foot pedal 14 is adjusted through the first adjustment mechanism 81 to meet the requirements of standing training for users of different heights; the height of the connecting seat 17 is adjusted and the position of the connecting seat 17 is fixed through the second locking mechanism 82 to meet the requirements of sitting training for users of different heights; the position of the sliding seat 83 is adjusted and the position of the sliding seat 83 is fixed through the third locking mechanism 84, which is applicable to users with different arm lengths.

[0096] Both the second connecting member 763 and the third connecting member 745 are spherical; the first connecting member 753 is cylindrical; the first connecting member 753 is rotatably connected to the first sliding member 751; the driving member 47 is spherical; a spherical groove is provided on the inner wall of the telescopic cylinder 2; the driving member 47 is connected in the spherical groove.

[0097] The second connecting member 763 is spherical and can roll to reduce the frictional force between the second connecting member 763 and the outer wall of the first rotating shaft 42; the third connecting member 745 is spherical and can roll to reduce the frictional force between the third connecting member 745 and the inner hole wall of the seventh gear 741; the first connecting member 753 is cylindrical, and the first connecting member 753 is rotatably connected to the first sliding member 751. The first connecting member 753 can rotate to reduce the frictional force between the first connecting member 753 and the inner hole wall of the first gear 43; the driving member 47 is spherical and can roll in the spiral groove 461 to reduce the frictional force between the driving member 47 and the inner wall of the spiral groove 461.

[0098] The embodiments of the present invention have been described above in conjunction with the accompanying drawings. However, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the spirit and scope protected by the claims of the present invention. All of these are within the protection scope of the present invention.

Claims

1. An adjustable high-position seated rowing trainer, characterized in that: It includes a frame (1), a telescopic cylinder (2), annular counterweight plates (3), a transmission mechanism (4) and a lifting pedal (5); On both sides of the frame (1), pulling arms (11) are symmetrically provided; the pulling arms (11) are rotatably connected to the frame (1); a handle (12) is connected to the upper end of the pulling arm (11); a barbell plate hanging rod (13) is connected to the lower end of the pulling arm (11); a first foot pedal (14) is connected to the lower end of the frame (1); a second foot pedal (15) is connected to the frame (1); a backrest (16) is connected to the upper end of the frame (1); a connecting seat (17) is connected to the frame (1); a seat cushion (18) is rotatably connected to the connecting seat (17); a first locking mechanism (19) is provided on the connecting seat (17); the first locking mechanism (19) is used to fix the position of the seat cushion (18); The telescopic cylinder (2) is slidably connected to the pulling arm (11); a base (6) is fixedly connected to the frame (1); on the base (6), placing grooves (61) are symmetrically provided; the annular counterweight plates (3) are arranged at intervals in the placing grooves (61); The transmission mechanism (4) is connected to the frame (1); the lifting pedals (5) are respectively slidably connected to both sides of the frame (1); the lifting pedals (5) are used to drive the transmission mechanism (4) to work; the transmission mechanism (4) is used to drive the telescopic cylinder (2) to move at a fixed distance.

2. The adjustable high-position seated rowing trainer according to claim 1, wherein: The transmission mechanism (4) includes a rack (41), a first rotating shaft (42), a first gear (43), a second rotating shaft (44), a third rotating shaft (45), a fourth rotating shaft (46), a driving member (47) and a first elastic member (48); The rack (41) is fixedly connected to the lifting pedal (5); the first rotating shafts (42) are rotatably connected to both sides of the frame (1); the first gear (43) is connected to the first rotating shaft (42); The second rotating shaft (44) is rotatably connected to the frame (1); a first transmission assembly (71) is used for transmission between one of the first rotating shafts (42) and the second rotating shaft (44); a second transmission assembly (72) is used for transmission between the other first rotating shaft (42) and the second rotating shaft (44); The third rotating shaft (45) is rotatably connected to the base (6); a third transmission assembly (73) is used for transmission between the third rotating shaft (45) and the second rotating shaft (44); The fourth rotating shaft (46) is rotatably connected to the pulling arm (11); a spiral groove (461) is provided on the fourth rotating shaft (46); the fourth rotating shaft (46) abuts against the inside of the telescopic cylinder (2); a driving member (47) is connected to the inner wall of the telescopic cylinder (2); the driving member (47) abuts against the spiral groove (461); a fourth transmission assembly (74) is used for transmission between the fourth rotating shaft (46) and the third rotating shaft (45); The lifting pedal (5) is connected to the frame (1) through the first elastic member (48).

3. The adjustable high-position seated rowing trainer according to claim 2, characterized in that: The first gear (43) is connected to the first rotating shaft (42) through a fifth transmission assembly (75); the fifth transmission assembly (75) includes a first sliding member (751), a second elastic member (752), and a first connecting member (753). Two first grooves (431) are provided on the inner hole wall of the first gear (43); a first connecting groove (421) is provided on the first rotating shaft (42); the first sliding member (751) is slidably connected in the first connecting groove (421); one end face of the first sliding member (751) is connected to the bottom surface of the first connecting groove (421) through the second elastic member (752); the other end of the first sliding member (751) is connected to the first connecting member (753); the first connecting member (753) abuts in one of the first grooves (431). The first rotating shaft (42) is connected to the frame (1) through a sixth transmission assembly (76); the sixth transmission assembly (76) includes a second sliding member (761), a third elastic member (762), and a second connecting member (763). Second grooves (422) are symmetrically provided on the first rotating shaft (42); a second connecting groove (101) is provided on the frame (1); the second sliding member (761) is slidably connected in the second connecting groove (101); one end face of the second sliding member (761) is connected to the bottom surface of the second connecting groove (101) through the third elastic member (762); the other end of the second sliding member (761) is connected to the second connecting member (763); the second connecting member (763) abuts in one of the second grooves (422).

4. An adjustable high-position seated rowing trainer according to claim 3, characterized in that: The fourth transmission assembly (74) includes a seventh gear (741) and an eighth gear (742). The seventh gear (741) is connected to the third rotating shaft (45); the eighth gear (742) is fixedly connected to the fourth rotating shaft (46).

5. The adjustable high-position seated rowing trainer according to claim 4, characterized in that: The fourth transmission assembly (74) further includes a third sliding member (743), a fourth elastic member (744), and a third connecting member (745). A seventh groove is provided on the inner hole wall of the seventh gear (741); the seventh gear (741) is rotatably connected to the third rotating shaft (45); a third connecting groove (451) is provided on the third rotating shaft (45); the third sliding member (743) is slidably connected in the third connecting groove (451); one end face of the third sliding member (743) is connected to the bottom surface of the third connecting groove (451) through the fourth elastic member (744); the other end of the third sliding member (743) is connected to the third connecting member (745); the third connecting member (745) abuts in the seventh groove. The pulling arm (11) is provided with a cylindrical structure (111); an avoidance groove (1111) is provided on the side wall of the cylindrical structure (111); a first limiting groove (1112) and a second limiting groove (1113) are provided on the cylindrical structure (111) at intervals; a sliding rod (746) is slidably connected in the cylindrical structure (111); one end of the sliding rod (746) is fixedly connected with a fixing member (747); the other end of the sliding rod (746) is rotatably connected with a connecting rod (748); a limiting structure (7481) is provided on the connecting rod (748).

6. The adjustable high-position sitting rowing trainer according to claim 5, wherein: One end of the telescopic cylinder (2) is closed; a fourth connecting groove is provided at the closed end of the telescopic cylinder (2); a fourth sliding member (22) is slidably connected in the fourth connecting groove; a fifth elastic member (23) is provided between the end face of one end of the fourth sliding member (22) and the bottom surface of the fourth connecting groove; a convex structure (221) is provided at the other end of the fourth sliding member (22); a fourth groove (31) is provided on the side wall of the inner hole of the annular counterweight piece (3).

7. An adjustable high-position seated rowing trainer according to claim 6, characterized in that: The first transmission assembly (71) includes a second gear (711) and a third gear (712); the second gear (711) is fixedly connected to the first rotating shaft (42); the third gear (712) is fixedly connected to the second rotating shaft (44). The second transmission assembly (72) includes a fourth gear (721), a fifth gear (722) and a sixth gear (723); the fourth gear (721) is fixedly connected to the first rotating shaft (42); the fifth gear (722) is rotatably connected to the frame (1); the sixth gear (723) is fixedly connected to the second rotating shaft (44).

8. An adjustable high-position seated rowing trainer according to claim 7, characterized in that: A fifth groove (32) is provided on the outer side wall of the annular counterweight piece (3); limiting protrusions (611) are provided on the inner wall of the placing groove (61) at intervals.

9. An adjustable high-position sitting rowing trainer according to claim 8, characterized in that: The first foot pedal (14) is connected to the frame (1) through a first adjustment mechanism (81); the first adjustment mechanism (81) is used to adjust the height of the first foot pedal (14); the connecting seat (17) is slidably connected to the frame (1); a second locking mechanism (82) is provided on the connecting seat (17); the second locking mechanism (82) is used to fix the position of the connecting seat (17); a sliding seat (83) is connected to the frame (1); a third locking mechanism (84) is connected to the frame (1); the third locking mechanism (84) is used to fix the sliding seat (83); the cushion (16) is rotatably connected to the sliding seat (83).

10. An adjustable high-position sitting rowing trainer according to claim 9, characterized in that: Both the second connecting member (763) and the third connecting member (745) are spherical; the first connecting member (753) is cylindrical; the first connecting member (753) is rotatably connected to the first sliding member (751); the driving member (47) is spherical; a spherical groove is provided on the inner wall of the telescopic cylinder (2); the driving member (47) is connected in the spherical groove.

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