Adjustable Air Resistance Lumbar Side Bending Training Equipment with High Wear-Resistant Composite Material

Abstract

The present application discloses an adjustable air resistance lumbar side flexion training device with a highly wear-resistant composite material. The adjustable air resistance lumbar side flexion training device with a highly wear-resistant composite material includes: a fixed frame; an orbital disc, which is rotatably connected to the fixed frame through a first rotating shaft, and the orbital disc is made of a highly wear-resistant composite material; a bidirectional swing frame, which rotates synchronously with the orbital disc, and the bidirectional swing frame includes a first arm pad and a second arm pad that are opposite and spaced apart; a seat cushion frame, which is fixedly connected to the fixed frame, a seat cushion is arranged on the seat cushion frame, and both the first arm pad and the second arm pad are located above the seat cushion; a resistance providing mechanism; a first pulley group, which includes a first pulley, a second pulley and a first pulley seat, the first pulley and the second pulley are respectively rotatably connected to the first pulley seat, the first pulley seat is fixedly connected to the fixed frame, the first pulley group faces the side of the orbital disc, and a first gap is arranged between the first pulley and the second pulley; a second pulley group. It improves the user experience and training efficiency.

Description

Technical Field

[0001] The present invention generally relates to the field of fitness equipment, and particularly relates to an adjustable air resistance lumbar side flexion training device with a highly wear-resistant composite material. Background Art

[0002] The bidirectional swing mechanism is widely used in fitness equipment, such as lumbar side flexion trainers, neck swing trainers, etc. In lumbar side flexion and neck swing training, clockwise and counterclockwise swing movements are respectively performed to meet the exercise requirements.

[0003] As Figure 1 shown, the existing bidirectional swing mechanism has a large dead zone when starting and switching between the two swing directions, resulting in a small resistance value at the initial position, thus affecting the user experience and reducing the training efficiency. Summary of the Invention

[0004] In view of the above defects or deficiencies in the prior art, it is desirable to provide an adjustable air resistance lumbar side flexion training device with a highly wear-resistant composite material that improves training efficiency.

[0005] In a first aspect, the adjustable air resistance lumbar side flexion training device with a highly wear-resistant composite material of the present invention includes:

[0006] A fixed frame;

[0007] A track disk, which is rotatably connected to the fixed frame through a first rotating shaft, and the track disk is made of a highly wear-resistant composite material;

[0008] A bidirectional swing frame, which rotates synchronously with the track disk, and the bidirectional swing frame includes a first arm pad and a second arm pad that are opposite and spaced apart;

[0009] A seat cushion frame, which is fixedly connected to the fixed frame, and a seat cushion is arranged on the seat cushion frame, and both the first arm pad and the second arm pad are located above the seat cushion;

[0010] A resistance providing mechanism;

[0011] A first pulley group, which includes a first pulley, a second pulley and a first pulley seat, the first pulley and the second pulley are respectively rotatably connected to the first pulley seat, the first pulley seat is fixedly connected to the fixed frame, the first pulley group faces the side of the track disk, and a first gap is arranged between the first pulley and the second pulley;

[0012] A second pulley group, which is connected to the fixed frame; and

[0013] A steel wire rope, one end of which is connected to the track disc through a second rotating shaft, and the other end is connected to the resistance providing mechanism. After the steel wire rope is led out from the track disc and passes through the first gap, it is connected to the resistance providing mechanism through the second pulley group. Wherein, the part of the steel wire rope located in the first gap is the winding section, the part of the steel wire rope between the winding section and the track disc is the first connection section, and the part of the steel wire rope between the winding section and the second pulley group is the second connection section.

[0014] When the track disc is in the initial position, the second rotating shaft is directly opposite to the first gap.

[0015] During the process of the bidirectional swing frame driving the track disc to rotate reciprocally away from the initial position, at least one of the first pulley and the second pulley contacts the winding section, and the first pulley group is offset relative to the track disc so that the first connection section and the second connection section are not collinear.

[0016] According to the technical solution provided by the embodiment of the present application, the resistance providing mechanism provides resistance for the rotation of the track disc through the steel wire rope. The first pulley group is offset relative to the track disc so that the first connection section and the second connection section are not collinear. When the steel wire rope passes through the first pulley group, the direction of the force will change. During the process of the bidirectional swing frame driving the track disc to rotate reciprocally away from the initial position, the steel wire rope can closely adhere to the first pulley group, thereby eliminating the situation of empty travel of the steel wire rope between the first pulley and the second pulley during the swing of the bidirectional swing frame. When the track disc is in the initial position, the resistance providing mechanism can also provide greater resistance for the rotation of the track disc through the steel wire rope, improving the user experience and training efficiency. Description of the Drawings

[0017] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes and advantages of the present application will become more obvious:

[0018] Figure 1 It is a structural schematic diagram of the existing bidirectional swing mechanism in the background technology;

[0019] Figure 2 It is a structural schematic diagram of the adjustable air resistance waist side flexion training device with high wear-resistant composite material according to the embodiment of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the track disc of the adjustable air resistance waist side flexion training device with high wear-resistant composite material according to the embodiment of the present invention in the initial structure;

[0021] Figure 4 It is a structural schematic diagram of the track disc of the adjustable air resistance waist side flexion training device with high wear-resistant composite material according to the embodiment of the present invention when the steel wire rope contacts the second pulley;

[0022] Figure 5 Schematic diagram of the structure of the track disc, the first pulley set and the steel wire rope of the adjustable air resistance waist side flexion training device with high wear-resistant composite material according to the embodiment of the present invention;

[0023] Figure 6 is Figure 5 Partial enlarged view at position A in

[0024] Figure 7 Schematic diagram of the structure of the track disc of the adjustable air resistance waist side flexion training device with high wear-resistant composite material according to the embodiment of the present invention when the steel wire rope bypasses the second pulley;

[0025] Figure 8 is Figure 7 Partial enlarged view at position B in

[0026] Figure 9 Schematic diagram of the structure of the track disc of the adjustable air resistance waist side flexion training device with high wear-resistant composite material according to the embodiment of the present invention;

[0027] Figure 10 Schematic diagram of the structure of the adjustable air resistance waist side flexion training device with high wear-resistant composite material according to the embodiment of the present invention after removing the housing;

[0028] Figure 11 is Figure 10 Partial enlarged view at position C in

[0029] Figure 12 Schematic diagram of the structure of the adjustable air resistance waist side flexion training device with high wear-resistant composite material according to the embodiment of the present invention after removing the housing. Detailed implementation manners

[0030] The following further elaborates on the present application in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the relevant invention and are not intended to limit the invention. Additionally, it should be noted that for the sake of description, only the parts related to the invention are shown in the drawings.

[0031] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The following will elaborate on the present application in detail with reference to the drawings and embodiments.

[0032] Please refer to Figures 1 to 12, the adjustable air resistance lumbar lateral flexion training device with high wear-resistant composite materials of the present invention. The adjustable air resistance lumbar lateral flexion training device with high wear-resistant composite materials includes: a fixed frame 100; an orbital disc 200, which is rotatably connected to the fixed frame 100 through a first rotating shaft 310, and the orbital disc 200 is made of high wear-resistant composite materials; a bidirectional swing frame 300, which rotates synchronously with the orbital disc 200, and the bidirectional swing frame 300 includes a first arm pad 320 and a second arm pad 330 that are opposite and spaced apart; a seat cushion frame 540, which is fixedly connected to the fixed frame 100, and a seat cushion 541 is arranged on the seat cushion frame 540, and both the first arm pad 320 and the second arm pad 330 are located above the seat cushion; a resistance providing mechanism 400; a first pulley group 510, which includes a first pulley 511, a second pulley 512 and a first pulley seat 513, the first pulley 511 and the second pulley 512 are respectively rotatably connected to the first pulley seat 513, the first pulley seat 513 is fixedly connected to the fixed frame 100, the first pulley group 510 faces the side of the orbital disc 200, and a first gap 514 is arranged between the first pulley 511 and the second pulley 512; a second pulley group 520; and a steel wire rope 530, one end of which is connected to the orbital disc 200 through a second rotating shaft 230, and the other end is connected to the resistance providing mechanism 400. After the steel wire rope 530 is led out from the orbital disc 200 and passes through the first gap 514, it is connected to the resistance providing mechanism 400 through the second pulley group 520. Among them, the part of the steel wire rope 530 located in the first gap 514 is a winding section 531, the part of the steel wire rope 530 located between the winding section 531 and the orbital disc 200 is a first connection section 532, the part of the steel wire rope 530 located between the winding section 531 and the second pulley group 520 is a second connection section 533. When the orbital disc 200 is in the initial position, the second rotating shaft 230 is directly opposite the first gap 514. During the process of the bidirectional swing frame 300 driving the orbital disc 200 to rotate reciprocally away from the initial position, at least one of the first pulley 511 and the second pulley 512 contacts the winding section 531, and the first pulley group 510 is offset relative to the orbital disc 200 so that the first connection section 532 and the second connection section 533 are not collinear.

[0033] In an embodiment of the present invention, the fixed frame is placed on the ground to support the entire adjustable air resistance lumbar lateral flexion training device.

[0034] The orbital disc is rotatably connected to the fixed frame through a first rotating shaft. It can be, but is not limited to, that the fixed frame is fixedly connected with a fixed seat 170, there is a certain gap between the fixed seat 170 and the fixed frame 100, the orbital disc and the bidirectional swing frame are located on both sides of the fixed seat 170, so that the first rotating shaft and the fixed seat 170 are more balanced in force, the orbital disc is located between the fixed seat 170 and the fixed frame, making the structure more compact and also avoiding movement interference between the bidirectional swing frame and the fixed seat.

[0035] The bidirectional swing frame is provided with a first arm pad and a second arm pad. When the user performs waist side flexion training, the bidirectional swing frame is driven to swing through the first arm pad or the second arm pad. The swinging of the bidirectional swing frame drives the track disc to rotate, and the resistance providing mechanism provides resistance for the rotation of the track disc through the steel wire rope, achieving the purpose of muscle training. Of course, when the user performs waist side flexion training, they can sit on the cushion, and the cushion supports the user's buttocks, making the force exerted during waist side flexion training more reasonable, thereby improving the training efficiency.

[0036] The distance between the first arm pad and the second arm pad can be adjusted to meet the different training needs of different users. A balance weight can be set on the bidirectional swing frame, and the balance weight can balance the weight of the swing frame, enabling the resistance provided by the resistance providing mechanism to be better transmitted to the bidirectional swing frame. The initial position of the swing frame can also be adjusted, and the user can adjust the initial position of the swing frame according to the training needs.

[0037] During the rotation of the track disc, the steel wire rope continuously bypasses the track disc. The track disc is composed of a high wear-resistant composite material, which can improve the reliability and service life of the track disc. For example, the track disc is made of metal or non-metal high wear-resistant composite materials such as manganese alloy, chromium alloy, carbon multi-alloy steel, chromium carbide composite material, polymer ceramic composite material, etc., but not limited to this.

[0038] The bidirectional swing frame is connected to the track disc through a first rotating shaft, and the bidirectional swing frame rotates synchronously with the track disc through the first rotating shaft. The first rotating shaft passes through the fixed frame and is rotatably connected to the fixed frame. When the user performs bidirectional muscle training, the bidirectional swing frame is driven to swing reciprocally. The bidirectional swing frame drives the track disc to rotate reciprocally. The track disc drives the resistance providing mechanism to move through the steel wire rope, and the resistance providing mechanism can provide resistance for the reciprocal swing of the bidirectional swing frame, achieving the purpose of muscle training. A handle can also be set on the bidirectional swing frame for the user to grasp during waist side flexion training, facilitating the driving of the bidirectional swing frame to swing.

[0039] The first pulley group includes a first pulley, a second pulley, and a first pulley seat. A first gap for the steel wire rope to pass through is provided between the first pulley and the second pulley. One end of the steel wire rope passes through the first gap and is connected to the track disc. When the track disc starts to rotate from the initial position, as the track disc rotates, the track disc can pull the end of the steel wire rope away from the first gap, that is, the track disc can drag the steel wire rope from the first gap towards the track disc direction, thereby driving the resistance providing mechanism to act. The resistance providing mechanism provides resistance for the rotation of the track disc through the steel wire rope. A second gap is provided between the first pulley group and the track disc to avoid movement interference between the two.

[0040] Optionally but not limited to, the resistance providing mechanism can be any one or a combination of multiple of selector plates, springs, cylinders, oil cylinders, magnetic control wheels, air resistance wheels, water resistance wheels, and elastic bands.

[0041] The steel wire rope is connected to the resistance providing mechanism through the second pulley group. The second pulley group may include multiple third pulleys. The position of the second pulley group is set according to actual conditions to ensure that the resistance can be transmitted through the steel wire rope to avoid movement interference between the steel wire rope and other structures.

[0042] When the track disc is in the initial position, the second rotating shaft is directly opposite to the first gap, and at this time, the length of the first connecting section is the shortest. As the track disc rotates, it deviates from the initial position. Regardless of whether the track disc is rotating forward or reverse, the track disc will pull the steel wire rope, and the length of the first connecting section will continue to increase. The resistance providing mechanism provides resistance for the forward or reverse rotation of the track disc through the steel wire rope. That is, when the two-way swing frame deviates from the initial position and swings in two directions, the resistance providing mechanism can provide resistance for the swing of the two-way swing frame.

[0043] A display screen 180 may be fixed on the side of the fixing frame facing the seat cushion, so that the user can view training-related information.

[0044] The portion of the wire rope located in the first gap is the winding section, the portion between the winding section and the track disk is the first connection section, and the portion between the winding section and the second pulley block is the second connection section. As the track disk rotates, the positions of the winding section, the first connection section, and the second connection section on the wire rope are constantly changing. The first pulley block is offset relative to the track disk so that the first connection section and the second connection section are not colinear. When the wire rope passes through the first pulley block, the direction of the force will change. When the two-way swing frame drives the track disk to deviate from the initial position and rotate back and forth, the wire rope can be close to the first pulley block, thereby eliminating the situation where the wire rope has an empty stroke between the first pulley and the second pulley during the swinging process of the two-way swing frame. When the track disk is in the initial position, the resistance providing mechanism can also provide greater resistance to the rotation of the track disk through the wire rope, thereby improving the user experience and the training efficiency. The first pulley block is offset relative to the track disc, which can be understood as, when the track disc is in the initial position, the first pulley block is not located directly below the track disc, so that the wire rope can pass around the first pulley, and the first connecting section and the second connecting section form an obtuse angle, thereby avoiding the situation of empty travel. Of course, during the bidirectional rotation of the track disc, the wire rope always keeps passing around the first pulley.

[0045] by Figure 3 The figure is shown in the figure as an example for detailed description. The height of the first pulley is lower than that of the second pulley. When the track plate is in the initial position, the wire rope only passes around the first pulley, and the wire rope does not contact the second pulley.

[0046] When the track disc rotates counterclockwise to pull the steel wire rope, the wrap angle of the steel wire rope around the first pulley will gradually increase, and during the counterclockwise rotation of the track disc, the steel wire rope does not contact the second pulley.

[0047] When the track disk rotates clockwise to pull the wire rope, the wrap angle of the wire rope around the first pulley will gradually decrease until the wire rope contacts the second pulley and passes around the second pulley, and the wrap angle of the wire rope around the first pulley will remain unchanged. After the wire rope contacts the second pulley and passes around the second pulley, as the track disk continues to rotate counterclockwise, the wrap angle of the wire rope around the second pulley will gradually increase. Regardless of whether the track disk rotates clockwise or counterclockwise, the wire rope will be wound around the first pulley and there will be a wrap angle, and the wire rope will not detach from the first pulley. During the rotation of the track disk, the wire rope will not have an empty stroke without contacting the first pulley and the second pulley, thereby avoiding excessive changes in the resistance transmitted by the resistance providing mechanism through the wire rope.

[0048] Furthermore, the resistance providing mechanism 400 includes: a rotating rod 410, one end of which is rotatably connected to the fixed frame 100 via a third rotating shaft 411, and the other end is connected to the wire rope 530 via a first connecting member 412; a resistance cylinder 420, which includes a cylinder body 421 and a piston rod 422, one end of the cylinder body 421 away from the piston rod 422 is rotatably connected to the fixed frame 100, and one end of the piston rod 422 extending out of the cylinder body 421 is connected to the rotating rod 410 via a second connecting member 413; an air storage tank 430, which is connected to the cylinder body 421 via an air pipe.

[0049] In an embodiment of the present invention, the gas storage tank supplies gas to the resistance cylinder through the air pipe, and the resistance of the resistance cylinder is adjusted by adjusting the air pressure in the cylinder, thereby achieving resistance adjustment for lumbar lateral flexion training. After the steel wire rope passes through the second pulley block, it is connected to the steel wire rope through the first connecting member. It can be, but not limited to, the first connecting member is fixedly connected to the rotating rod, and the first connecting member at the end of the steel wire rope is rotatably connected through the fourth rotating shaft 415. When the steel wire rope pulls the rotating rod to rotate, excessive bending of the end of the steel wire rope can be avoided. Among them, the air pipe is not shown in the drawings.

[0050] The cylinder body is rotatably connected to the fixed frame, and the piston rod is rotatably connected to the rotating rod. When performing lumbar lateral flexion training, the user drives the track plate to rotate through the two-way swing frame. When the track plate rotates and drives the wire rope to pull the rotating rod to rotate, the rotating rod can smoothly push the piston rod to contract, thereby compressing the gas in the cylinder body, and the resistance cylinder can provide resistance for the rotation of the rotating rod. When the user completes a lumbar lateral flexion movement and the upper body returns to an upright posture from a lateral flexion posture, the resistance cylinder can push the rotating rod to reset, and the two-way swing frame will also reset under the action of its own gravity, so that the user can repeat the lumbar lateral flexion training.

[0051] Further, a first stop seat 110 is fixedly connected to the bottom of the fixing frame 100. The first stop seat 110 is located on the side of the rotating rod 410 facing away from the resistance cylinder 420. A stop block 414 is arranged on the side surface of the rotating rod 410, and a second stop seat 120 is arranged inside the fixing frame 100. The second stop seat 120 is located on the movement path of the stop block 414.

[0052] In an embodiment of the present invention, a first stop seat is fixedly connected to the bottom of the fixing frame. The first stop seat can support and stop the rotating rod. When the track disk is in the initial position, the first stop seat supports the rotating rod. A buffer pad can be arranged on the side of the first stop seat facing the rotating seat. The buffer pad can buffer the collision of the rotating rod. The surface of the first stop seat for stopping the rotating rod is parallel to the rotating rod when it is in the initial position, thereby improving the reliability of the first stop seat in supporting the rotating rod. A stop block is arranged on the side surface of the rotating rod, and a second stop seat is arranged on the fixing frame. The second stop seat is located on the movement path of the stop block. By arranging the first stop seat and the second stop seat, the rotation range of the rotating rod can be limited, which plays a role in protecting the adjustable air resistance lumbar side flexion training device and improves the safety of the adjustable air resistance lumbar side flexion training device. The shape of the part of the second stop member located on the movement path of the stop block for stopping the stop block is the same as the shape of the side of the stop block facing the second stop member, so that when the second stop member stops the stop block, the contact area between the two is increased, ensuring the effect of the second stop member in stopping the stop block.

[0053] Further, the rotating rod 410 is placed in the lower part of the fixing frame 100, the resistance cylinder 420 is located in the upper part of the fixing frame 100, the second connecting member 413 is located between the first connecting member 412 and the third rotating shaft 411, and the cylinder body 421 is rotatably connected to the top of the fixing frame 100.

[0054] In an embodiment of the present invention, the rotating rod is located in the lower part of the fixing frame, the first stop seat is located below the rotating rod, the resistance cylinder is located in the upper part of the fixing frame, and the resistance cylinder is located above the rotating rod. When the track disk is in the initial position, the rotating rod will rotate to contact the first stop seat under its own gravity, so that the steel wire rope is in a tensioned state, and the steel wire rope will not be slack, avoiding the situation that the steel wire rope is suddenly tightened when the air storage tank inflates the resistance cylinder, and improving the safety of the adjustable air resistance lumbar side flexion training device.

[0055] The second connecting member is located between the first connecting member and the third rotating shaft, so that the stroke of the piston rod connected to the second connecting member is less than the stroke of the steel wire rope connected to the first connecting member. When using the adjustable air resistance lumbar side flexion training device, the stroke of the steel wire rope driven by the rotation of the track disk is greater than the stroke of the piston rod, and the stroke of the piston rod is fixed. Setting the second connecting member between the first connecting member and the third rotating shaft makes the structure more reasonable.

[0056] Further, the second pulley set 520 includes a plurality of third pulleys 521. At least one third pulley 521 is located at the bottom of the fixed frame 100, and at least one third pulley 521 is located at the top of the fixed frame 100. After the steel wire rope 530 is led out from the first pulley set 510, it passes through the third pulley 521 located at the bottom of the fixed frame 100 and the third pulley 521 located at the top of the fixed frame 100 in sequence and then is connected to the resistance providing mechanism 400.

[0057] In an embodiment of the present invention, the steel wire rope is introduced into the fixed frame through the third pulley located at the bottom of the fixed frame. After passing through the third pulley located at the top of the fixed frame and changing direction, it suspends the rotating rod above the rotating rod. When the track disc rotates and drives the rotating rod to rotate through the steel wire rope, the steel wire rope will pull the rotating rod to lift, with a compact and simple structure.

[0058] Further, the fixed frame 100 includes a top rod 130 and a bottom rod 140. The third pulley 521 located at the bottom of the fixed frame 100 is located on the side of the bottom rod 140 facing away from the top rod 130, and the third pulley 521 located at the top of the fixed frame 100 is located on the side of the top rod 130 facing away from the bottom rod 140.

[0059] In an embodiment of the present invention, the fixed frame 100 includes a second upright column 150 and a third upright column 160 that are parallel to each other, as well as a top rod and a bottom rod that are parallel to each other. A housing 190 can be provided on the fixed frame. The housing can shield the resistance providing mechanism to prevent the resistance providing mechanism from being exposed, ensuring the safety of the adjustable air resistance waist side flexion training device. The third pulley located at the bottom of the fixed frame is located below the bottom rod. During waist side flexion training, the pulling force direction of the steel wire rope on the third pulley faces the bottom rod, and the bottom rod can better support the third pulley to prevent the third pulley from being damaged. The third pulley located at the top of the fixed frame is located above the top rod. During waist side flexion training, the pulling force direction of the steel wire rope on the third pulley faces the top rod, and the top rod can better support the third pulley to prevent the third pulley from being damaged.

[0060] Reference Figures 10 to 12 Further, a fourth pulley 131 is connected to the side of the top rod 130 facing away from the third pulley 521 located at the top of the fixed frame 100. The steel wire rope 530 is wound out from the third pulley 521 located at the bottom of the fixed frame 100, passes through the top rod 130, bypasses the fourth pulley 131, and then is connected to the resistance providing mechanism 400. The part of the steel wire rope 530 between the third pulley 521 located at the bottom of the fixed frame 100 and the third pulley 521 located at the top of the fixed frame 100 is the third connection section 535, and the part of the steel wire rope 530 between the fourth pulley 131 and the third pulley 521 located at the top of the fixed frame 100 is the fourth connection section 536. Both the third connection section 535 and the fourth connection section 536 are arranged in a direction perpendicular to the top rod 130.

[0061] In an embodiment of the present invention, by providing a fourth pulley, the direction of the fourth connection segment can be changed, such that the fourth connection segment is perpendicular to the ejector rod, facilitating the machining of a through hole with a smaller aperture for the wire rope to pass through on the ejector rod, avoiding contact friction between the wire rope and the ejector rod during the waist side flexion training process, resulting in wear of the wire rope, and improving the reliability of the wire rope. The third connection segment is also arranged in a direction perpendicular to the ejector rod, reducing the occupied space of the third connection segment and making the structure of the resistance providing mechanism more compact.

[0062] Further, the seat cushion frame 540 is fixedly connected with a first upright post 542 and a leg rest frame 543. The leg rest frame 543 is located between the first upright post 542 and the seat cushion frame 540. The first upright post 542 is rotatably connected with a first rotating shaft 310. The bidirectional swing frame 300 is located between the first upright post 542 and the fixed frame 100. A resistance adjustment button 5421 is arranged at the top of the first upright post 542. The leg rest frame 543 is fixedly connected with a leg rest connecting rod 544 in an adjustable height manner. The leg rest connecting rod 544 is rotatably connected with a plurality of leg rests 545.

[0063] In an embodiment of the present invention, the first rotating shaft is rotatably connected with the first upright post. The first upright post can support the first rotating shaft, avoiding deformation of the first rotating shaft and improving the reliability of the adjustable air resistance waist side flexion training device. A resistance adjustment button is arranged at the top of the first upright post. When the user sits on the seat cushion, the user can control the air storage tank to inflate the resistance cylinder or control the air storage tank to extract air from the resistance cylinder by pressing the adjustment button, thereby adjusting the air pressure in the resistance cylinder and realizing the adjustment of the resistance of the waist side flexion training. The resistance adjustment is convenient.

[0064] Optionally but not limited to, the first upright post is detachably fixedly connected with a connecting plate 5422. The connecting plate is rotatably connected with the first rotating shaft, thereby realizing the rotational connection between the first upright post and the first rotating shaft. The first upright post supports the first rotating shaft. By providing the connecting plate, it is convenient to machine the first upright post. At the same time, it is not necessary to keep the heights of the first upright post and the first rotating shaft consistent.

[0065] The leg rest frame is fixedly connected with a leg rest connecting rod in an adjustable height manner. The user can adjust the height of the leg rest connecting rod according to the training requirements, such that the leg rest can fit the leg more closely. The leg rest connecting rod is rotatably connected with a plurality of leg rests. When the leg rest presses on the leg, the leg rest can rotate according to the shape of the leg, making the leg rest fit the leg more closely.

[0066] Further, the seat cushion frame 540 is fixedly connected with a seat cushion base 546 in an adjustable height manner. The seat cushion 541 is fixedly connected to the seat cushion base 546. The seat cushion base 546 is fixedly connected with a sliding rod 547. The seat cushion frame 540 is fixedly connected with a sliding bearing 548. The sliding rod 547 is sleeved on the sliding bearing 548.

[0067] In an embodiment of the present invention, the seat cushion frame is fixedly connected to the seat cushion base with adjustable height. It can be, but is not limited to, that the seat cushion frame is connected to the seat cushion base through a cylinder to achieve fixed connection with adjustable height, which has a simple structure and is convenient for adjustment. Through the sliding connection with the sliding bearing, the stability of the seat cushion height adjustment is ensured. It can also avoid the torsion of the seat cushion and ensure the reliability of the seat cushion to support the user's buttocks.

[0068] Further, a first fixing plate 210 and a second fixing plate 220 are respectively and fixedly connected to both sides of the track plate 200. The first fixing plate 210 and the second fixing plate 220 are respectively rotatably connected to the second rotating shaft 230. A first stop member 534 is provided at one end of the steel wire rope 530 passing through the second rotating shaft 230.

[0069] In an embodiment of the present invention, the track plate is rotatably connected to the second rotating shaft through the first fixing plate and the second fixing plate, which is convenient for the assembly and processing of the track plate. It can be, but is not limited to, that the first fixing plate and the second fixing plate are detachably fixedly connected to the track plate. A first stop member is provided at one end of the steel wire rope passing through the second rotating shaft. The second rotating shaft can stop the first stop member to prevent the steel wire rope from loosening caused by the end of the steel wire rope passing through the second rotating shaft, and ensure the reliability of the steel wire rope to transmit resistance. During the rotation of the track plate, as the steel wire rope is pulled, the first stop member will closely adhere to the second rotating shaft, and the second rotating shaft will rotate, avoiding excessive deformation and twisting at the end of the steel wire rope, and being able to extend the service life of the steel wire rope.

[0070] Further, the second rotating shaft 230 is provided with a first through hole for the steel wire rope 530 to pass through. A second stop member 240 is inserted into the side of the first through hole facing away from the first pulley group 510. The second stop member 240 is provided with a second through hole for the steel wire rope 530 to pass through, and the second stop member 240 is used to stop the first stop member 534.

[0071] In an embodiment of the present invention, the second stop member is inserted into the first through hole, and the first stop member is stopped by the second stop member instead of the second rotating shaft, which can ensure the reliability of stopping the first stop member. One end of the steel wire rope first passes through the first through hole, then through the second through hole and then fixes the first stop member. During the rotation of the track plate, the first through hole and the second through hole can face the direction of the first gap.

[0072] Further, the second rotating shaft 230 is rotatably connected to the first fixing plate 210 through a first bearing 231, and the second rotating shaft 230 is rotatably connected to the second fixing plate 220 through a second bearing 232.

[0073] In an embodiment of the present invention, the first bearing can ensure the smooth rotation connection between the second rotating shaft and the first fixing plate. It can be, but is not limited to, that the first bearing is a self-lubricating copper-based bearing. The second bearing can ensure the smooth rotation connection between the second rotating shaft and the second fixing plate. It can be, but is not limited to, that the second bearing is a self-lubricating copper-based bearing.

[0074] Further, the second rotating shaft 230 is provided with a stop projection 233. The stop projection 233 is located between the first bearing 231 and the second bearing 232. One end of the second rotating shaft 230 extending out of the first bearing 231 is clamped with a first snap ring 234, and one end of the second rotating shaft 230 extending out of the second bearing 232 is clamped with a second snap ring 235.

[0075] In an embodiment of the present invention, the second rotating shaft is provided with a stop projection, which can position the first bearing and the second bearing to prevent the first bearing and the second bearing from being too close. The first snap ring plays a role in preventing the first bearing from disengaging from the second rotating shaft, ensuring the reliability of the rotation connection between the second rotating shaft and the first fixing plate. The second snap ring plays a role in preventing the second bearing from disengaging from the second rotating shaft, ensuring the reliability of the rotation connection between the second rotating shaft and the second fixing plate.

[0076] Further, the track disk 200 is provided with a groove 250, and the first stop member 534 and the second rotating shaft 230 are located in the groove.

[0077] In an embodiment of the present invention, the first stop member and the second rotating shaft are located in the groove. By providing the groove, the structure of the track disk can be made more compact, and during the rotation of the track disk, the first stop member and the second rotating shaft can be prevented from interfering with other structures. At the same time, during the rotation of the track disk, the steel wire rope can be smoothly wound around the side of the track disk, avoiding excessive changes in the resistance provided by the steel wire rope to the rotation of the track disk.

[0078] Further, the side surface of the track disk 200 facing the first pulley set 510 is provided with an annular groove 260. The annular groove 260 surrounds the track disk 200, and the annular groove 260 is located on the winding path of the steel wire rope 530 wound around the track disk 200.

[0079] In an embodiment of the present invention, during the rotation of the track disk, when the steel wire rope is wound around the side of the track disk, the steel wire rope will enter the annular groove on the side of the track disk. The annular groove can prevent the steel wire rope from disengaging from the side of the track disk during the winding process of the track disk, ensuring the reliability of the adjustable air resistance lumbar side flexion training device.

[0080] Further, the height of the first pulley 511 is lower than the height of the second pulley 512. During the reciprocating rotation of the track disk 200 driven by the bidirectional swing frame 300 to deviate from the initial position, the steel wire rope 530 is in close contact with the first pulley 511.

[0081] In an embodiment of the present invention, Figure 4 The figure is shown in the figure as an example for detailed description. The height of the first pulley is lower than that of the second pulley. When the track plate is in the initial position, the wire rope only passes around the first pulley, and the wire rope does not contact the second pulley.

[0082] When the track disc rotates counterclockwise to pull the steel wire rope, the wrap angle of the steel wire rope around the first pulley will gradually increase, and during the counterclockwise rotation of the track disc, the steel wire rope does not contact the second pulley.

[0083] When the track disk rotates clockwise to pull the wire rope, the wrap angle of the wire rope around the first pulley will gradually decrease until the wire rope contacts the second pulley and passes around the second pulley, and the wrap angle of the wire rope around the first pulley will remain unchanged. After the wire rope contacts the second pulley and passes around the second pulley, as the track disk continues to rotate counterclockwise, the wrap angle of the wire rope around the second pulley will gradually increase. Regardless of whether the track disk rotates clockwise or counterclockwise, the wire rope will be wound around the first pulley and there will be a wrap angle, and the wire rope will not detach from the first pulley. During the rotation of the track disk, the wire rope will not have an empty stroke without contacting the first pulley and the second pulley, thereby avoiding excessive changes in the resistance transmitted by the resistance providing mechanism through the wire rope.

[0084] Furthermore, the second connecting section 533 is arranged along the vertical direction.

[0085] In an embodiment of the present invention, the second connecting section is arranged in the vertical direction, which can reduce the space occupied by the second connecting section, and the adjustable air-resistance lumbar lateral flexion training device is arranged more compactly, thereby reducing the volume of the adjustable air-resistance lumbar lateral flexion training device.

[0086] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solution formed by a specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the above features are replaced with (but not limited to) technical features with similar functions disclosed in the present application.

Claims

1. An adjustable air resistance lumbar lateral flexion training device with a highly wear-resistant composite material, characterized in that, The adjustable air resistance lumbar side flexion training device with high wear-resistant composite material includes: A fixed frame; An orbital disc, which is rotationally connected to the fixed frame through a first rotating shaft, and the orbital disc is made of high wear-resistant composite material; A bidirectional swing frame, which rotates synchronously with the orbital disc, and the bidirectional swing frame includes a first arm pad and a second arm pad that are opposite and spaced apart; A seat cushion frame, which is fixedly connected to the fixed frame, and a seat cushion is arranged on the seat cushion frame, and both the first arm pad and the second arm pad are located above the seat cushion; A resistance providing mechanism; A first pulley group, which includes a first pulley, a second pulley and a first pulley seat, the first pulley and the second pulley are respectively rotationally connected to the first pulley seat, the first pulley seat is fixedly connected to the fixed frame, the first pulley group faces the side of the orbital disc, and a first gap is arranged between the first pulley and the second pulley; A second pulley group, which is connected to the fixed frame; and A steel wire rope, one end of which is connected to the orbital disc through a second rotating shaft, and the other end is connected to the resistance providing mechanism. After the steel wire rope is led out from the orbital disc and passes through the first gap, it is connected to the resistance providing mechanism through the second pulley group. Wherein, the part of the steel wire rope located in the first gap is a winding section, the part of the steel wire rope located between the winding section and the orbital disc is a first connection section, and the part of the steel wire rope located between the winding section and the second pulley group is a second connection section. When the orbital disc is in the initial position, the second rotating shaft is directly opposite the first gap. During the process of the bidirectional swing frame driving the orbital disc to reciprocally rotate away from the initial position, at least one of the first pulley and the second pulley contacts the winding section, and the first pulley group is offset relative to the orbital disc so that the first connection section and the second connection section are not collinear.

2. The adjustable air resistance lumbar side flexion training device with high wear-resistant composite material according to claim 1, characterized in that, The resistance providing mechanism includes: A rotating rod, one end of which is rotationally connected to the fixed frame through a third rotating shaft, and the other end is connected to the steel wire rope through a first connecting piece; A resistance cylinder, which includes a cylinder body and a piston rod, one end of the cylinder body away from the piston rod is rotationally connected to the fixed frame, and the end of the piston rod extending out of the cylinder body is connected to the rotating rod through a second connecting piece; An air storage tank, which is connected to the cylinder body through an air pipe.

3. The adjustable air resistance lumbar side flexion training device with a highly wear-resistant composite material according to claim 2, characterized in that, A first stop seat is fixedly connected to the bottom of the fixed frame, the first stop seat is located on the side of the rotating rod facing away from the resistance cylinder, a stop block is arranged on the side of the rotating rod, and a second stop seat is arranged inside the fixed frame, and the second stop seat is located on the movement path of the stop block.

4. The adjustable air resistance lumbar lateral flexion training device with high wear-resistant composite material according to claim 2, characterized in that, The rotating rod is placed at the lower part of the fixed frame, the resistance cylinder is located at the upper part of the fixed frame, the second connecting piece is located between the first connecting piece and the third rotating shaft, and the cylinder body is rotationally connected to the top of the fixed frame.

5. The adjustable air resistance lumbar side flexion training device with a highly wear-resistant composite material according to claim 1, wherein The second pulley set includes a plurality of third pulleys. At least one of the third pulleys is located at the bottom of the fixed frame, and at least one of the third pulleys is located at the top of the fixed frame. After the steel wire rope is led out from the first pulley set, it passes through the third pulley at the bottom of the fixed frame and the third pulley at the top of the fixed frame in sequence and then is connected to the resistance providing mechanism.

6. The adjustable air resistance lumbar side flexion training device with high wear-resistant composite material according to claim 5, characterized in that, The fixed frame includes a top rod and a bottom rod. The third pulley located at the bottom of the fixed frame is located on the side of the bottom rod facing away from the top rod, and the third pulley located at the top of the fixed frame is located on the side of the top rod facing away from the bottom rod.

7. The adjustable air resistance lumbar side flexion training device with a highly wear-resistant composite material according to claim 6, characterized in that, A fourth pulley is connected to the side of the top rod facing away from the third pulley located at the top of the fixed frame. After the steel wire rope is wound out from the third pulley located at the bottom of the fixed frame, it passes through the top rod and bypasses the fourth pulley and then is connected to the resistance providing mechanism. The steel wire rope between the third pulley located at the bottom of the fixed frame and the third pulley located at the top of the fixed frame is the third connecting section, and the steel wire rope between the fourth pulley and the third pulley located at the top of the fixed frame is the fourth connecting section. Both the third connecting section and the fourth connecting section are arranged in a direction perpendicular to the top rod.

8. The adjustable air resistance lumbar side flexion training device with high wear-resistant composite material according to claim 1, characterized in that, The seat cushion frame is fixedly connected with a first upright post and a leg cushion frame. The leg cushion frame is located between the first upright post and the seat cushion frame. The first upright post is rotatably connected to the first rotating shaft. The bidirectional swing frame is located between the first upright post and the fixed frame. A resistance adjustment button is arranged at the top of the first upright post. The leg cushion frame is fixedly connected with a leg cushion connecting rod in a height-adjustable manner. The leg cushion connecting rod is rotatably connected with a plurality of leg cushions.

9. The adjustable air resistance lumbar side flexion training device with a highly wear-resistant composite material according to claim 1, wherein, The seat cushion frame is fixedly connected with a seat cushion seat in a height-adjustable manner. The seat cushion is fixedly connected to the seat cushion seat. The seat cushion seat is fixedly connected with a sliding rod. The seat cushion frame is fixedly connected with a sliding bearing. The sliding rod is sleeved on the sliding bearing.

10. The adjustable air resistance lumbar lateral flexion training device with high wear-resistant composite material according to claim 1, characterized in that, First fixing plates and second fixing plates are respectively fixedly connected to both sides of the track disc. The first fixing plates and the second fixing plates are respectively rotatably connected to the second rotating shaft. A first stop is arranged at one end of the steel wire rope passing through the second rotating shaft. An annular groove is arranged on the side surface of the track disc facing the first pulley set. The annular groove surrounds the track disc. The annular groove is located on the winding path of the steel wire rope wound on the track disc.

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